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5.4.220-rc1 review

PATCH In review Greg Kroah-Hartman 11 participants 276 messages Oct 24, 2022 – Nov 1, 2022 Page 1 of 2

Subsystems (6)
lore
Share & tools
lore
author maintainer
#107 lore raw

PATCH 94/255 drm: fix drm_mipi_dbi build errors

In reply to Greg Kroah-Hartman

From: Randy Dunlap <[email protected]>

[ Upstream commit eb7de496451bd969e203f02f66585131228ba4ae ]

drm_mipi_dbi needs lots of DRM_KMS_HELPER support, so select that Kconfig symbol like it is done is most other uses, and the way that it was before MIPS_DBI was moved from tinydrm to its core location.

Fixes these build errors:

ld: drivers/gpu/drm/drm_mipi_dbi.o: in function `mipi_dbi_buf_copy':
drivers/gpu/drm/drm_mipi_dbi.c:205: undefined reference to `drm_gem_fb_get_obj'
ld: drivers/gpu/drm/drm_mipi_dbi.c:211: undefined reference to `drm_gem_fb_begin_cpu_access'
ld: drivers/gpu/drm/drm_mipi_dbi.c:215: undefined reference to `drm_gem_fb_vmap'
ld: drivers/gpu/drm/drm_mipi_dbi.c:222: undefined reference to `drm_fb_swab'
ld: drivers/gpu/drm/drm_mipi_dbi.c:224: undefined reference to `drm_fb_memcpy'
ld: drivers/gpu/drm/drm_mipi_dbi.c:227: undefined reference to `drm_fb_xrgb8888_to_rgb565'
ld: drivers/gpu/drm/drm_mipi_dbi.c:235: undefined reference to `drm_gem_fb_vunmap'
ld: drivers/gpu/drm/drm_mipi_dbi.c:237: undefined reference to `drm_gem_fb_end_cpu_access'
ld: drivers/gpu/drm/drm_mipi_dbi.o: in function `mipi_dbi_dev_init_with_formats':
ld: drivers/gpu/drm/drm_mipi_dbi.o:/X64/../drivers/gpu/drm/drm_mipi_dbi.c:469: undefined reference to `drm_gem_fb_create_with_dirty'

Fixes 174102f4de23 ("drm/tinydrm: Move mipi-dbi")
Cc Dillon Min <[email protected]>
Cc Linus Walleij <[email protected]>
Cc Sam Ravnborg <[email protected]>
Cc Noralf Trønnes <[email protected]>
Cc Thomas Zimmermann <[email protected]>
Cc Thierry Reding <[email protected]>
Cc David Airlie <[email protected]>
Cc Daniel Vetter <[email protected]>
---
 drivers/gpu/drm/Kconfig | 1 +
 1 file changed, 1 insertion(+)
drivers/gpu/drm/Kconfig +1 -0
index 649f17dfcf45..fc6c4f81985e 100644
@@ -27,6 +27,7 @@ menuconfig DRM
 config DRM_MIPI_DBI
 	tristate
 	depends on DRM
+	select DRM_KMS_HELPER
 
 config DRM_MIPI_DSI
 	bool
Signature · 1 line
2.35.1
author maintainer
#202 lore raw

PATCH 189/255 x86/entry: Work around Clang __bdos() bug

In reply to Greg Kroah-Hartman

From: Kees Cook <[email protected]>

[ Upstream commit 3e1730842f142add55dc658929221521a9ea62b6 ]

Clang produces a false positive when building with CONFIG_FORTIFY_SOURCE=y and CONFIG_UBSAN_BOUNDS=y when operating on an array with a dynamic offset. Work around this by using a direct assignment of an empty instance. Avoids this warning:

../include/linux/fortify-string.h:309:4: warning: call to __write_overflow_field declared with 'warn ing' attribute: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Wat tribute-warning]

                        __write_overflow_field(p_size_field, size);
                        ^

which was isolated to the memset() call in xen_load_idt().

Note that this looks very much like another bug that was worked around:
https://github.com/ClangBuiltLinux/linux/issues/1592

---
 arch/x86/xen/enlighten_pv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
arch/x86/xen/enlighten_pv.c +2 -1
index 65cf405cd975..26b35e75b701 100644
@@ -759,6 +759,7 @@ static void xen_load_idt(const struct desc_ptr *desc)
 {
 	static DEFINE_SPINLOCK(lock);
 	static struct trap_info traps[257];
+	static const struct trap_info zero = { };
 	unsigned out;
 
 	trace_xen_cpu_load_idt(desc);
@@ -768,7 +769,7 @@ static void xen_load_idt(const struct desc_ptr *desc)
 	memcpy(this_cpu_ptr(&idt_desc), desc, sizeof(idt_desc));
 
 	out = xen_convert_trap_info(desc, traps, false);
-	memset(&traps[out], 0, sizeof(traps[0]));
+	traps[out] = zero;
 
 	xen_mc_flush();
 	if (HYPERVISOR_set_trap_table(traps))
Signature · 1 line
2.35.1
author maintainer
#199 lore raw

PATCH 186/255 MIPS: BCM47XX: Cast memcmp() of function to (void *)

In reply to Greg Kroah-Hartman

From: Kees Cook <[email protected]>

[ Upstream commit 0dedcf6e3301836eb70cfa649052e7ce4fcd13ba ]

Clang is especially sensitive about argument type matching when using __overloaded functions (like memcmp(), etc). Help it see that function pointers are just "void *". Avoids this error:

arch/mips/bcm47xx/prom.c:89:8: error: no matching function for call to 'memcmp'

                   if (!memcmp(prom_init, prom_init + mem, 32))
                        ^~~~~~

include/linux/string.h:156:12: note: candidate function not viable: no known conversion from 'void (void)' to 'const void *' for 1st argument extern int memcmp(const void *,const void *,__kernel_size_t);

---
 arch/mips/bcm47xx/prom.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
arch/mips/bcm47xx/prom.c +2 -2
index 135a5407f015..d26d9a6f6ee7 100644
@@ -85,7 +85,7 @@ static __init void prom_init_mem(void)
 			pr_debug("Assume 128MB RAM\n");
 			break;
 		}
-		if (!memcmp(prom_init, prom_init + mem, 32))
+		if (!memcmp((void *)prom_init, (void *)prom_init + mem, 32))
 			break;
 	}
 	lowmem = mem;
@@ -162,7 +162,7 @@ void __init bcm47xx_prom_highmem_init(void)
 
 	off = EXTVBASE + __pa(off);
 	for (extmem = 128 << 20; extmem < 512 << 20; extmem <<= 1) {
-		if (!memcmp(prom_init, (void *)(off + extmem), 16))
+		if (!memcmp((void *)prom_init, (void *)(off + extmem), 16))
 			break;
 	}
 	extmem -= lowmem;
Signature · 1 line
2.35.1
author maintainer
#11 lore raw

PATCH 11/255 cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message

In reply to Greg Kroah-Hartman

From: Zhang Xiaoxu <[email protected]>

commit e98ecc6e94f4e6d21c06660b0f336df02836694f upstream.

Commit d5c7076b772a ("smb3: add smb3.1.1 to default dialect list") extend the dialects from 3 to 4, but forget to decrease the extended length when specific the dialect, then the message length is larger than expected.

This maybe leak some info through network because not initialize the message body.

After apply this patch, the VALIDATE_NEGOTIATE_INFO message length is reduced from 28 bytes to 26 bytes.

Fixes d5c7076b772a ("smb3: add smb3.1.1 to default dialect list")
---
 fs/cifs/smb2pdu.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
fs/cifs/smb2pdu.c +2 -2
@@ -1100,9 +1100,9 @@ int smb3_validate_negotiate(const unsign
 		pneg_inbuf->Dialects[0] =
 			cpu_to_le16(server->vals->protocol_id);
 		pneg_inbuf->DialectCount = cpu_to_le16(1);
-		/* structure is big enough for 3 dialects, sending only 1 */
+		/* structure is big enough for 4 dialects, sending only 1 */
 		inbuflen = sizeof(*pneg_inbuf) -
-				sizeof(pneg_inbuf->Dialects[0]) * 2;
+				sizeof(pneg_inbuf->Dialects[0]) * 3;
 	}
 
 	rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
author maintainer
#10 lore raw

PATCH 10/255 cifs: destage dirty pages before re-reading them for cache=none

In reply to Greg Kroah-Hartman

From: Ronnie Sahlberg <[email protected]>

commit bb44c31cdcac107344dd2fcc3bd0504a53575c51 upstream.

This is the opposite case of kernel bugzilla 216301.
If we mmap a file using cache=none and then proceed to update the mmapped area these updates are not reflected in a later pread() of that part of the file.
To fix this we must first destage any dirty pages in the range before we allow the pread() to proceed.

---
 fs/cifs/file.c |    9 +++++++++
 1 file changed, 9 insertions(+)
fs/cifs/file.c +9 -0
@@ -3877,6 +3877,15 @@ static ssize_t __cifs_readv(
 		len = ctx->len;
 	}
 
+	if (direct) {
+		rc = filemap_write_and_wait_range(file->f_inode->i_mapping,
+						  offset, offset + len - 1);
+		if (rc) {
+			kref_put(&ctx->refcount, cifs_aio_ctx_release);
+			return -EAGAIN;
+		}
+	}
+
 	/* grab a lock here due to read response handlers can access ctx */
 	mutex_lock(&ctx->aio_mutex);
 
author maintainer
#15 lore raw

PATCH 15/255 usb: add quirks for Lenovo OneLink+ Dock

In reply to Greg Kroah-Hartman

From: Jean-Francois Le Fillatre <[email protected]>

commit 37d49519b41405b08748392c6a7f193d9f77ecd2 upstream.

The Lenovo OneLink+ Dock contains two VL812 USB3.0 controllers:
17ef:1018 upstream
17ef:1019 downstream

These hubs suffer from two separate problems:

1) After the host system was suspended and woken up, the hubs appear to be in a random state. Some downstream ports (both internal to the built-in audio and network controllers, and external to USB sockets) may no longer be functional. The exact list of disabled ports (if any) changes from wakeup to wakeup. Ports remain in that state until the dock is power-cycled, or until the laptop is rebooted.

Wakeup sources connected to the hubs (keyboard, WoL on the integrated gigabit controller) will wake the system up from suspend, but they may no longer work after wakeup (and in that case will no longer work as wakeup source in a subsequent suspend-wakeup cycle).

This issue appears in the logs with messages such as:

     usb 1-6.1-port4: cannot disable (err = -71)
     usb 1-6-port2: cannot disable (err = -71)
     usb 1-6.1: clear tt 1 (80c0) error -71
     usb 1-6-port4: cannot disable (err = -71)
     usb 1-6.4: PM: dpm_run_callback(): usb_dev_resume+0x0/0x10 [usbcore] returns -71
     usb 1-6.4: PM: failed to resume async: error -71
     usb 1-7: reset full-speed USB device number 5 using xhci_hcd
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: Cannot enable. Maybe the USB cable is bad?
     usb 1-6.1-port1: cannot disable (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: cannot reset (err = -71)
     usb 1-6.1-port1: Cannot enable. Maybe the USB cable is bad?
     usb 1-6.1-port1: cannot disable (err = -71)

2) Some USB devices cannot be enumerated properly. So far I have only seen the issue with USB 3.0 devices. The same devices work without problem directly connected to the host system, to other systems or to other hubs (even when those hubs are connected to the OneLink+ dock).

One very reliable reproducer is this USB 3.0 HDD enclosure:
152d:9561 JMicron Technology Corp. / JMicron USA Technology Corp. Mobius

I have seen it happen sporadically with other USB 3.0 enclosures, with controllers from different manufacturers, all self-powered.

Typical messages in the logs:

xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command usb 2-1.4: device not accepting address 6, error -62 xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command usb 2-1.4: device not accepting address 7, error -62
usb 2-1-port4: attempt power cycle
xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command usb 2-1.4: device not accepting address 8, error -62 xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command usb 2-1.4: device not accepting address 9, error -62
usb 2-1-port4: unable to enumerate USB device

Through trial and error, I found that the USB_QUIRK_RESET_RESUME solved the second issue. Further testing then uncovered the first issue. Test results are summarized in this table:

=======================================================================================
Settings USB2 hotplug USB3 hotplug State after waking up
---------------------------------------------------------------------------------------

power/control=auto works fails broken

usbcore.autosuspend=-1 works works broken
OR power/control=on

power/control=auto works (1) works (1) works
and USB_QUIRK_RESET_RESUME

power/control=on works works works
and USB_QUIRK_RESET_RESUME

HUB_QUIRK_DISABLE_AUTOSUSPEND works works works
and USB_QUIRK_RESET_RESUME

=======================================================================================

In those results, the power/control settings are applied to both hubs, both on the USB2 and USB3 side, before each test.

Quoted 1 line

From those results, USB_QUIRK_RESET_RESUME is required to reset the hubs

properly after a suspend-wakeup cycle, and the hubs must not autosuspend to work around the USB3 issue.

A secondary effect of USB_QUIRK_RESET_RESUME is to prevent the hubs' upstream links from suspending (the downstream ports can still suspend). This secondary effect is used in results (1). It is enough to solve the USB3 problem.

Setting USB_QUIRK_RESET_RESUME on those hubs is the smallest patch that solves both issues.

Prior to creating this patch, I have used the USB_QUIRK_RESET_RESUME via the kernel command line for over a year without noticing any side effect.

Thanks to Oliver Neukum @Suse for explanations of the operations of USB_QUIRK_RESET_RESUME, and requesting more testing.

---
 drivers/usb/core/quirks.c |    4 ++++
 1 file changed, 4 insertions(+)
drivers/usb/core/quirks.c +4 -0
@@ -438,6 +438,10 @@ static const struct usb_device_id usb_qu
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Lenovo ThinkPad OneLink+ Dock twin hub controllers (VIA Labs VL812) */
+	{ USB_DEVICE(0x17ef, 0x1018), .driver_info = USB_QUIRK_RESET_RESUME },
+	{ USB_DEVICE(0x17ef, 0x1019), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* Lenovo USB-C to Ethernet Adapter RTL8153-04 */
 	{ USB_DEVICE(0x17ef, 0x720c), .driver_info = USB_QUIRK_NO_LPM },
 
author maintainer
#16 lore raw

PATCH 16/255 can: kvaser_usb: Fix use of uninitialized completion

In reply to Greg Kroah-Hartman

From: Anssi Hannula <[email protected]>

commit cd7f30e174d09a02ca2afa5ef093fb0f0352e0d8 upstream.

flush_comp is initialized when CMD_FLUSH_QUEUE is sent to the device and completed when the device sends CMD_FLUSH_QUEUE_RESP.

This causes completion of uninitialized completion if the device sends CMD_FLUSH_QUEUE_RESP before CMD_FLUSH_QUEUE is ever sent (e.g. as a response to a flush by a previously bound driver, or a misbehaving device).

Fix that by initializing flush_comp in kvaser_usb_init_one() like the other completions.

This issue is only triggerable after RX URBs have been set up, i.e. the interface has been opened at least once.

---
 drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c  |    1 +
 drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c |    2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c +1 -0
@@ -690,6 +690,7 @@ static int kvaser_usb_init_one(struct kv
 	init_usb_anchor(&priv->tx_submitted);
 	init_completion(&priv->start_comp);
 	init_completion(&priv->stop_comp);
+	init_completion(&priv->flush_comp);
 	priv->can.ctrlmode_supported = 0;
 
 	priv->dev = dev;
drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +1 -1
@@ -1886,7 +1886,7 @@ static int kvaser_usb_hydra_flush_queue(
 {
 	int err;
 
-	init_completion(&priv->flush_comp);
+	reinit_completion(&priv->flush_comp);
 
 	err = kvaser_usb_hydra_send_simple_cmd(priv->dev, CMD_FLUSH_QUEUE,
 					       priv->channel);
author maintainer
#17 lore raw

PATCH 17/255 can: kvaser_usb_leaf: Fix overread with an invalid command

In reply to Greg Kroah-Hartman

From: Anssi Hannula <[email protected]>

commit 1499ecaea9d2ba68d5e18d80573b4561a8dc4ee7 upstream.

For command events read from the device, kvaser_usb_leaf_read_bulk_callback() verifies that cmd->len does not exceed the size of the received data, but the actual kvaser_cmd handlers will happily read any kvaser_cmd fields without checking for cmd->len.

This can cause an overread if the last cmd in the buffer is shorter than expected for the command type (with cmd->len showing the actual short size).

Maximum overread seems to be 22 bytes (CMD_LEAF_LOG_MESSAGE), some of which are delivered to userspace as-is.

Fix that by verifying the length of command before handling it.

This issue can only occur after RX URBs have been set up, i.e. the interface has been opened at least once.

---
 drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c |   75 +++++++++++++++++++++++
 1 file changed, 75 insertions(+)
drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +75 -0
@@ -309,6 +309,38 @@ struct kvaser_cmd {
 	} u;
 } __packed;
 
+#define CMD_SIZE_ANY 0xff
+#define kvaser_fsize(field) sizeof_field(struct kvaser_cmd, field)
+
+static const u8 kvaser_usb_leaf_cmd_sizes_leaf[] = {
+	[CMD_START_CHIP_REPLY]		= kvaser_fsize(u.simple),
+	[CMD_STOP_CHIP_REPLY]		= kvaser_fsize(u.simple),
+	[CMD_GET_CARD_INFO_REPLY]	= kvaser_fsize(u.cardinfo),
+	[CMD_TX_ACKNOWLEDGE]		= kvaser_fsize(u.tx_acknowledge_header),
+	[CMD_GET_SOFTWARE_INFO_REPLY]	= kvaser_fsize(u.leaf.softinfo),
+	[CMD_RX_STD_MESSAGE]		= kvaser_fsize(u.leaf.rx_can),
+	[CMD_RX_EXT_MESSAGE]		= kvaser_fsize(u.leaf.rx_can),
+	[CMD_LEAF_LOG_MESSAGE]		= kvaser_fsize(u.leaf.log_message),
+	[CMD_CHIP_STATE_EVENT]		= kvaser_fsize(u.leaf.chip_state_event),
+	[CMD_CAN_ERROR_EVENT]		= kvaser_fsize(u.leaf.error_event),
+	/* ignored events: */
+	[CMD_FLUSH_QUEUE_REPLY]		= CMD_SIZE_ANY,
+};
+
+static const u8 kvaser_usb_leaf_cmd_sizes_usbcan[] = {
+	[CMD_START_CHIP_REPLY]		= kvaser_fsize(u.simple),
+	[CMD_STOP_CHIP_REPLY]		= kvaser_fsize(u.simple),
+	[CMD_GET_CARD_INFO_REPLY]	= kvaser_fsize(u.cardinfo),
+	[CMD_TX_ACKNOWLEDGE]		= kvaser_fsize(u.tx_acknowledge_header),
+	[CMD_GET_SOFTWARE_INFO_REPLY]	= kvaser_fsize(u.usbcan.softinfo),
+	[CMD_RX_STD_MESSAGE]		= kvaser_fsize(u.usbcan.rx_can),
+	[CMD_RX_EXT_MESSAGE]		= kvaser_fsize(u.usbcan.rx_can),
+	[CMD_CHIP_STATE_EVENT]		= kvaser_fsize(u.usbcan.chip_state_event),
+	[CMD_CAN_ERROR_EVENT]		= kvaser_fsize(u.usbcan.error_event),
+	/* ignored events: */
+	[CMD_USBCAN_CLOCK_OVERFLOW_EVENT] = CMD_SIZE_ANY,
+};
+
 /* Summary of a kvaser error event, for a unified Leaf/Usbcan error
  * handling. Some discrepancies between the two families exist:
  *
@@ -396,6 +428,43 @@ static const struct kvaser_usb_dev_cfg k
 	.bittiming_const = &kvaser_usb_flexc_bittiming_const,
 };
 
+static int kvaser_usb_leaf_verify_size(const struct kvaser_usb *dev,
+				       const struct kvaser_cmd *cmd)
+{
+	/* buffer size >= cmd->len ensured by caller */
+	u8 min_size = 0;
+
+	switch (dev->driver_info->family) {
+	case KVASER_LEAF:
+		if (cmd->id < ARRAY_SIZE(kvaser_usb_leaf_cmd_sizes_leaf))
+			min_size = kvaser_usb_leaf_cmd_sizes_leaf[cmd->id];
+		break;
+	case KVASER_USBCAN:
+		if (cmd->id < ARRAY_SIZE(kvaser_usb_leaf_cmd_sizes_usbcan))
+			min_size = kvaser_usb_leaf_cmd_sizes_usbcan[cmd->id];
+		break;
+	}
+
+	if (min_size == CMD_SIZE_ANY)
+		return 0;
+
+	if (min_size) {
+		min_size += CMD_HEADER_LEN;
+		if (cmd->len >= min_size)
+			return 0;
+
+		dev_err_ratelimited(&dev->intf->dev,
+				    "Received command %u too short (size %u, needed %u)",
+				    cmd->id, cmd->len, min_size);
+		return -EIO;
+	}
+
+	dev_warn_ratelimited(&dev->intf->dev,
+			     "Unhandled command (%d, size %d)\n",
+			     cmd->id, cmd->len);
+	return -EINVAL;
+}
+
 static void *
 kvaser_usb_leaf_frame_to_cmd(const struct kvaser_usb_net_priv *priv,
 			     const struct sk_buff *skb, int *frame_len,
@@ -503,6 +572,9 @@ static int kvaser_usb_leaf_wait_cmd(cons
 end:
 	kfree(buf);
 
+	if (err == 0)
+		err = kvaser_usb_leaf_verify_size(dev, cmd);
+
 	return err;
 }
 
@@ -1137,6 +1209,9 @@ static void kvaser_usb_leaf_stop_chip_re
 static void kvaser_usb_leaf_handle_command(const struct kvaser_usb *dev,
 					   const struct kvaser_cmd *cmd)
 {
+	if (kvaser_usb_leaf_verify_size(dev, cmd) < 0)
+		return;
+
 	switch (cmd->id) {
 	case CMD_START_CHIP_REPLY:
 		kvaser_usb_leaf_start_chip_reply(dev, cmd);
author maintainer
#2 lore raw

PATCH 2/255 ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free()

In reply to Greg Kroah-Hartman

From: Takashi Iwai <[email protected]>

commit a70aef7982b012e86dfd39fbb235e76a21ae778a upstream.

The register_mutex taken around the dev_unregister callback call in snd_rawmidi_free() may potentially lead to a mutex deadlock, when OSS emulation and a hot unplug are involved.

Since the mutex doesn't protect the actual race (as the registration itself is already protected by another means), let's drop it.

---
 sound/core/rawmidi.c |    2 --
 1 file changed, 2 deletions(-)
sound/core/rawmidi.c +0 -2
@@ -1662,10 +1662,8 @@ static int snd_rawmidi_free(struct snd_r
 
 	snd_info_free_entry(rmidi->proc_entry);
 	rmidi->proc_entry = NULL;
-	mutex_lock(&register_mutex);
 	if (rmidi->ops && rmidi->ops->dev_unregister)
 		rmidi->ops->dev_unregister(rmidi);
-	mutex_unlock(&register_mutex);
 
 	snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]);
 	snd_rawmidi_free_substreams(&rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]);
author maintainer
#20 lore raw

PATCH 20/255 mmc: sdhci-sprd: Fix minimum clock limit

In reply to Greg Kroah-Hartman

From: Wenchao Chen <[email protected]>

commit 6e141772e6465f937458b35ddcfd0a981b6f5280 upstream.

The Spreadtrum controller supports 100KHz minimal clock rate, which means that the current value 400KHz is wrong.

Unfortunately this has also lead to fail to initialize some cards, which are allowed to require 100KHz to work. So, let's fix the problem by changing the minimal supported clock rate to 100KHz.

Fixes fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller")
[Ulf: Clarified to commit-message]
---
 drivers/mmc/host/sdhci-sprd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/mmc/host/sdhci-sprd.c +1 -1
@@ -295,7 +295,7 @@ static unsigned int sdhci_sprd_get_max_c
 
 static unsigned int sdhci_sprd_get_min_clock(struct sdhci_host *host)
 {
-	return 400000;
+	return 100000;
 }
 
 static void sdhci_sprd_set_uhs_signaling(struct sdhci_host *host,
author maintainer
#7 lore raw

PATCH 7/255 ALSA: hda/realtek: Add quirk for ASUS GV601R laptop

In reply to Greg Kroah-Hartman

From: Luke D. Jones <[email protected]>

commit 2ea8e1297801f7b0220ebf6ae61a5b74ca83981e upstream.

The ASUS ROG X16 (GV601R) series laptop has the same node-to-DAC pairs as early models and the G14, this includes bass speakers which are by default mapped incorrectly to the 0x06 node.

Add a quirk to use the same DAC pairs as the G14.

---
 sound/pci/hda/patch_realtek.c |    1 +
 1 file changed, 1 insertion(+)
sound/pci/hda/patch_realtek.c +1 -0
@@ -8280,6 +8280,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1043, 0x1e8e, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x1c52, "ASUS Zephyrus G15 2022", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x1f11, "ASUS Zephyrus G14", ALC289_FIXUP_ASUS_GA401),
+	SND_PCI_QUIRK(0x1043, 0x1f92, "ASUS ROG Flow X16", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x3030, "ASUS ZN270IE", ALC256_FIXUP_ASUS_AIO_GPIO2),
 	SND_PCI_QUIRK(0x1043, 0x831a, "ASUS P901", ALC269_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x1043, 0x834a, "ASUS S101", ALC269_FIXUP_STEREO_DMIC),
author maintainer
#9 lore raw

PATCH 9/255 mtd: rawnand: atmel: Unmap streaming DMA mappings

In reply to Greg Kroah-Hartman

From: Tudor Ambarus <[email protected]>

commit 1161703c9bd664da5e3b2eb1a3bb40c210e026ea upstream.

Every dma_map_single() call should have its dma_unmap_single() counterpart, because the DMA address space is a shared resource and one could render the machine unusable by consuming all DMA addresses.

---
 drivers/mtd/nand/raw/atmel/nand-controller.c |    1 +
 1 file changed, 1 insertion(+)
drivers/mtd/nand/raw/atmel/nand-controller.c +1 -0
@@ -402,6 +402,7 @@ static int atmel_nand_dma_transfer(struc
 
 	dma_async_issue_pending(nc->dmac);
 	wait_for_completion(&finished);
+	dma_unmap_single(nc->dev, buf_dma, len, dir);
 
 	return 0;
 
author maintainer
#21 lore raw

PATCH 21/255 fs: dlm: fix race between test_bit() and queue_work()

In reply to Greg Kroah-Hartman

From: Alexander Aring <[email protected]>

commit eef6ec9bf390e836a6c4029f3620fe49528aa1fe upstream.

This patch fixes a race by using ls_cb_mutex around the bit operations and conditional code blocks for LSFL_CB_DELAY.

The function dlm_callback_stop() expects to stop all callbacks and flush all currently queued onces. The set_bit() is not enough because there can still be queue_work() after the workqueue was flushed. To avoid queue_work() after set_bit(), surround both by ls_cb_mutex.

---
 fs/dlm/ast.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
fs/dlm/ast.c +4 -2
@@ -198,13 +198,13 @@ void dlm_add_cb(struct dlm_lkb *lkb, uin
 	if (!prev_seq) {
 		kref_get(&lkb->lkb_ref);
 
+		mutex_lock(&ls->ls_cb_mutex);
 		if (test_bit(LSFL_CB_DELAY, &ls->ls_flags)) {
-			mutex_lock(&ls->ls_cb_mutex);
 			list_add(&lkb->lkb_cb_list, &ls->ls_cb_delay);
-			mutex_unlock(&ls->ls_cb_mutex);
 		} else {
 			queue_work(ls->ls_callback_wq, &lkb->lkb_cb_work);
 		}
+		mutex_unlock(&ls->ls_cb_mutex);
 	}
  out:
 	mutex_unlock(&lkb->lkb_cb_mutex);
@@ -284,7 +284,9 @@ void dlm_callback_stop(struct dlm_ls *ls
 
 void dlm_callback_suspend(struct dlm_ls *ls)
 {
+	mutex_lock(&ls->ls_cb_mutex);
 	set_bit(LSFL_CB_DELAY, &ls->ls_flags);
+	mutex_unlock(&ls->ls_cb_mutex);
 
 	if (ls->ls_callback_wq)
 		flush_workqueue(ls->ls_callback_wq);
author maintainer
#35 lore raw

PATCH 35/255 btrfs: fix race between quota enable and quota rescan ioctl

In reply to Greg Kroah-Hartman

From: Filipe Manana <[email protected]>

commit 331cd9461412e103d07595a10289de90004ac890 upstream.

When enabling quotas, at btrfs_quota_enable(), after committing the transaction, we change fs_info->quota_root to point to the quota root we created and set BTRFS_FS_QUOTA_ENABLED at fs_info->flags. Then we try to start the qgroup rescan worker, first by initializing it with a call to qgroup_rescan_init() - however if that fails we end up freeing the quota root but we leave fs_info->quota_root still pointing to it, this can later result in a use-after-free somewhere else.

We have previously set the flags BTRFS_FS_QUOTA_ENABLED and BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail with -EINPROGRESS at btrfs_quota_enable(), which is possible if someone already called the quota rescan ioctl, and therefore started the rescan worker.

So fix this by ignoring an -EINPROGRESS and asserting we can't get any other error.

---
 fs/btrfs/qgroup.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)
fs/btrfs/qgroup.c +15 -0
@@ -1075,6 +1075,21 @@ out_add_root:
 		fs_info->qgroup_rescan_running = true;
 	        btrfs_queue_work(fs_info->qgroup_rescan_workers,
 	                         &fs_info->qgroup_rescan_work);
+	} else {
+		/*
+		 * We have set both BTRFS_FS_QUOTA_ENABLED and
+		 * BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail with
+		 * -EINPROGRESS. That can happen because someone started the
+		 * rescan worker by calling quota rescan ioctl before we
+		 * attempted to initialize the rescan worker. Failure due to
+		 * quotas disabled in the meanwhile is not possible, because
+		 * we are holding a write lock on fs_info->subvol_sem, which
+		 * is also acquired when disabling quotas.
+		 * Ignore such error, and any other error would need to undo
+		 * everything we did in the transaction we just committed.
+		 */
+		ASSERT(ret == -EINPROGRESS);
+		ret = 0;
 	}
 
 out_free_path:
author maintainer
#25 lore raw

PATCH 25/255 ASoC: wcd9335: fix order of Slimbus unprepare/disable

In reply to Greg Kroah-Hartman

From: Krzysztof Kozlowski <[email protected]>

commit ea8ef003aa53ad23e7705c5cab1c4e664faa6c79 upstream.

Slimbus streams are first prepared and then enabled, so the cleanup path should reverse it. The unprepare sets stream->num_ports to 0 and frees the stream->ports. Calling disable after unprepare was not really effective (channels was not deactivated) and could lead to further issues due to making transfers on unprepared stream.

---
 sound/soc/codecs/wcd9335.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
sound/soc/codecs/wcd9335.c +1 -1
@@ -1971,8 +1971,8 @@ static int wcd9335_trigger(struct snd_pc
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		slim_stream_unprepare(dai_data->sruntime);
 		slim_stream_disable(dai_data->sruntime);
+		slim_stream_unprepare(dai_data->sruntime);
 		break;
 	default:
 		break;
author maintainer
#45 lore raw

PATCH 45/255 livepatch: fix race between fork and KLP transition

In reply to Greg Kroah-Hartman

From: Rik van Riel <[email protected]>

commit 747f7a2901174c9afa805dddfb7b24db6f65e985 upstream.

The KLP transition code depends on the TIF_PATCH_PENDING and the task->patch_state to stay in sync. On a normal (forward) transition, TIF_PATCH_PENDING will be set on every task in the system, while on a reverse transition (after a failed forward one) first TIF_PATCH_PENDING will be cleared from every task, followed by it being set on tasks that need to be transitioned back to the original code.

However, the fork code copies over the TIF_PATCH_PENDING flag from the parent to the child early on, in dup_task_struct and setup_thread_stack. Much later, klp_copy_process will set child->patch_state to match that of the parent.

However, the parent's patch_state may have been changed by KLP loading or unloading since it was initially copied over into the child.

This results in the KLP code occasionally hitting this warning in klp_complete_transition:

        for_each_process_thread(g, task) {
                WARN_ON_ONCE(test_tsk_thread_flag(task, TIF_PATCH_PENDING));
                task->patch_state = KLP_UNDEFINED;
        }

Set, or clear, the TIF_PATCH_PENDING flag in the child task depending on whether or not it is needed at the time klp_copy_process is called, at a point in copy_process where the tasklist_lock is held exclusively, preventing races with the KLP code.

The KLP code does have a few places where the state is changed without the tasklist_lock held, but those should not cause problems because klp_update_patch_state(current) cannot be called while the current task is in the middle of fork, klp_check_and_switch_task() which is called under the pi_lock, which prevents rescheduling, and manipulation of the patch state of idle tasks, which do not fork.

This should prevent this warning from triggering again in the future, and close the race for both normal and reverse transitions.

---
 kernel/livepatch/transition.c |   18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)
kernel/livepatch/transition.c +16 -2
@@ -611,9 +611,23 @@ void klp_reverse_transition(void)
 /* Called from copy_process() during fork */
 void klp_copy_process(struct task_struct *child)
 {
-	child->patch_state = current->patch_state;
 
-	/* TIF_PATCH_PENDING gets copied in setup_thread_stack() */
+	/*
+	 * The parent process may have gone through a KLP transition since
+	 * the thread flag was copied in setup_thread_stack earlier. Bring
+	 * the task flag up to date with the parent here.
+	 *
+	 * The operation is serialized against all klp_*_transition()
+	 * operations by the tasklist_lock. The only exception is
+	 * klp_update_patch_state(current), but we cannot race with
+	 * that because we are current.
+	 */
+	if (test_tsk_thread_flag(current, TIF_PATCH_PENDING))
+		set_tsk_thread_flag(child, TIF_PATCH_PENDING);
+	else
+		clear_tsk_thread_flag(child, TIF_PATCH_PENDING);
+
+	child->patch_state = current->patch_state;
 }
 
 /*
author maintainer
#50 lore raw

PATCH 50/255 ring-buffer: Fix race between reset page and reading page

In reply to Greg Kroah-Hartman

From: Steven Rostedt (Google) <[email protected]>

commit a0fcaaed0c46cf9399d3a2d6e0c87ddb3df0e044 upstream.

The ring buffer is broken up into sub buffers (currently of page size). Each sub buffer has a pointer to its "tail" (the last event written to the sub buffer). When a new event is requested, the tail is locally incremented to cover the size of the new event. This is done in a way that there is no need for locking.

If the tail goes past the end of the sub buffer, the process of moving to the next sub buffer takes place. After setting the current sub buffer to the next one, the previous one that had the tail go passed the end of the sub buffer needs to be reset back to the original tail location (before the new event was requested) and the rest of the sub buffer needs to be "padded".

The race happens when a reader takes control of the sub buffer. As readers do a "swap" of sub buffers from the ring buffer to get exclusive access to the sub buffer, it replaces the "head" sub buffer with an empty sub buffer that goes back into the writable portion of the ring buffer. This swap can happen as soon as the writer moves to the next sub buffer and before it updates the last sub buffer with padding.

Because the sub buffer can be released to the reader while the writer is still updating the padding, it is possible for the reader to see the event that goes past the end of the sub buffer. This can cause obvious issues.

To fix this, add a few memory barriers so that the reader definitely sees the updates to the sub buffer, and also waits until the writer has put back the "tail" of the sub buffer back to the last event that was written on it.

To be paranoid, it will only spin for 1 second, otherwise it will warn and shutdown the ring buffer code. 1 second should be enough as the writer does have preemption disabled. If the writer doesn't move within 1 second (with preemption disabled) something is horribly wrong. No interrupt should last 1 second!

Cc Ingo Molnar <[email protected]>
Cc Andrew Morton <[email protected]>
Fixes c7b0930857e22 ("ring-buffer: prevent adding write in discarded area")
---
 kernel/trace/ring_buffer.c |   33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
kernel/trace/ring_buffer.c +33 -0
@@ -2191,6 +2191,9 @@ rb_reset_tail(struct ring_buffer_per_cpu
 		/* Mark the rest of the page with padding */
 		rb_event_set_padding(event);
 
+		/* Make sure the padding is visible before the write update */
+		smp_wmb();
+
 		/* Set the write back to the previous setting */
 		local_sub(length, &tail_page->write);
 		return;
@@ -2202,6 +2205,9 @@ rb_reset_tail(struct ring_buffer_per_cpu
 	/* time delta must be non zero */
 	event->time_delta = 1;
 
+	/* Make sure the padding is visible before the tail_page->write update */
+	smp_wmb();
+
 	/* Set write to end of buffer */
 	length = (tail + length) - BUF_PAGE_SIZE;
 	local_sub(length, &tail_page->write);
@@ -3864,6 +3870,33 @@ rb_get_reader_page(struct ring_buffer_pe
 	arch_spin_unlock(&cpu_buffer->lock);
 	local_irq_restore(flags);
 
+	/*
+	 * The writer has preempt disable, wait for it. But not forever
+	 * Although, 1 second is pretty much "forever"
+	 */
+#define USECS_WAIT	1000000
+        for (nr_loops = 0; nr_loops < USECS_WAIT; nr_loops++) {
+		/* If the write is past the end of page, a writer is still updating it */
+		if (likely(!reader || rb_page_write(reader) <= BUF_PAGE_SIZE))
+			break;
+
+		udelay(1);
+
+		/* Get the latest version of the reader write value */
+		smp_rmb();
+	}
+
+	/* The writer is not moving forward? Something is wrong */
+	if (RB_WARN_ON(cpu_buffer, nr_loops == USECS_WAIT))
+		reader = NULL;
+
+	/*
+	 * Make sure we see any padding after the write update
+	 * (see rb_reset_tail())
+	 */
+	smp_rmb();
+
+
 	return reader;
 }
 
author maintainer
#51 lore raw

PATCH 51/255 media: cedrus: Set the platform driver data earlier

In reply to Greg Kroah-Hartman

From: Dmitry Osipenko <[email protected]>

commit 708938f8495147fe2e77a9a3e1015d8e6899323e upstream.

The cedrus_hw_resume() crashes with NULL deference on driver probe if runtime PM is disabled because it uses platform data that hasn't been set up yet. Fix this by setting the platform data earlier during probe.

---
 drivers/staging/media/sunxi/cedrus/cedrus.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/staging/media/sunxi/cedrus/cedrus.c +2 -2
@@ -323,6 +323,8 @@ static int cedrus_probe(struct platform_
 	if (!dev)
 		return -ENOMEM;
 
+	platform_set_drvdata(pdev, dev);
+
 	dev->vfd = cedrus_video_device;
 	dev->dev = &pdev->dev;
 	dev->pdev = pdev;
@@ -392,8 +394,6 @@ static int cedrus_probe(struct platform_
 		goto err_m2m_mc;
 	}
 
-	platform_set_drvdata(pdev, dev);
-
 	return 0;
 
 err_m2m_mc:
author maintainer
#53 lore raw

PATCH 53/255 KVM: nVMX: Unconditionally purge queued/injected events on nested "exit"

In reply to Greg Kroah-Hartman

From: Sean Christopherson <[email protected]>

commit d953540430c5af57f5de97ea9e36253908204027 upstream.

Drop pending exceptions and events queued for re-injection when leaving nested guest mode, even if the "exit" is due to VM-Fail, SMI, or forced by host userspace. Failure to purge events could result in an event belonging to L2 being injected into L1.

This _should_ never happen for VM-Fail as all events should be blocked by nested_run_pending, but it's possible if KVM, not the L1 hypervisor, is the source of VM-Fail when running vmcs02.

SMI is a nop (barring unknown bugs) as recognition of SMI and thus entry to SMM is blocked by pending exceptions and re-injected events.

Forced exit is definitely buggy, but has likely gone unnoticed because userspace probably follows the forced exit with KVM_SET_VCPU_EVENTS (or some other ioctl() that purges the queue).

---
 arch/x86/kvm/vmx/nested.c |   19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)
arch/x86/kvm/vmx/nested.c +11 -8
@@ -3762,14 +3762,6 @@ static void prepare_vmcs12(struct kvm_vc
 			nested_vmx_abort(vcpu,
 					 VMX_ABORT_SAVE_GUEST_MSR_FAIL);
 	}
-
-	/*
-	 * Drop what we picked up for L2 via vmx_complete_interrupts. It is
-	 * preserved above and would only end up incorrectly in L1.
-	 */
-	vcpu->arch.nmi_injected = false;
-	kvm_clear_exception_queue(vcpu);
-	kvm_clear_interrupt_queue(vcpu);
 }
 
 /*
@@ -4104,6 +4096,17 @@ void nested_vmx_vmexit(struct kvm_vcpu *
 		WARN_ON_ONCE(nested_early_check);
 	}
 
+	/*
+	 * Drop events/exceptions that were queued for re-injection to L2
+	 * (picked up via vmx_complete_interrupts()), as well as exceptions
+	 * that were pending for L2.  Note, this must NOT be hoisted above
+	 * prepare_vmcs12(), events/exceptions queued for re-injection need to
+	 * be captured in vmcs12 (see vmcs12_save_pending_event()).
+	 */
+	vcpu->arch.nmi_injected = false;
+	kvm_clear_exception_queue(vcpu);
+	kvm_clear_interrupt_queue(vcpu);
+
 	vmx_switch_vmcs(vcpu, &vmx->vmcs01);
 
 	/* Update any VMCS fields that might have changed while L2 ran */
author maintainer
#34 lore raw

PATCH 34/255 fbdev: smscufx: Fix use-after-free in ufx_ops_open()

In reply to Greg Kroah-Hartman

From: Hyunwoo Kim <[email protected]>

commit 5610bcfe8693c02e2e4c8b31427f1bdbdecc839c upstream.

A race condition may occur if the user physically removes the USB device while calling open() for this device node.

This is a race condition between the ufx_ops_open() function and the ufx_usb_disconnect() function, which may eventually result in UAF.

So, add a mutex to the ufx_ops_open() and ufx_usb_disconnect() functions to avoid race contidion of krefs.

---
 drivers/video/fbdev/smscufx.c |   14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)
drivers/video/fbdev/smscufx.c +13 -1
@@ -137,6 +137,8 @@ static int ufx_submit_urb(struct ufx_dat
 static int ufx_alloc_urb_list(struct ufx_data *dev, int count, size_t size);
 static void ufx_free_urb_list(struct ufx_data *dev);
 
+static DEFINE_MUTEX(disconnect_mutex);
+
 /* reads a control register */
 static int ufx_reg_read(struct ufx_data *dev, u32 index, u32 *data)
 {
@@ -1070,9 +1072,13 @@ static int ufx_ops_open(struct fb_info *
 	if (user == 0 && !console)
 		return -EBUSY;
 
+	mutex_lock(&disconnect_mutex);
+
 	/* If the USB device is gone, we don't accept new opens */
-	if (dev->virtualized)
+	if (dev->virtualized) {
+		mutex_unlock(&disconnect_mutex);
 		return -ENODEV;
+	}
 
 	dev->fb_count++;
 
@@ -1096,6 +1102,8 @@ static int ufx_ops_open(struct fb_info *
 	pr_debug("open /dev/fb%d user=%d fb_info=%p count=%d",
 		info->node, user, info, dev->fb_count);
 
+	mutex_unlock(&disconnect_mutex);
+
 	return 0;
 }
 
@@ -1741,6 +1749,8 @@ static void ufx_usb_disconnect(struct us
 {
 	struct ufx_data *dev;
 
+	mutex_lock(&disconnect_mutex);
+
 	dev = usb_get_intfdata(interface);
 
 	pr_debug("USB disconnect starting\n");
@@ -1761,6 +1771,8 @@ static void ufx_usb_disconnect(struct us
 	kref_put(&dev->kref, ufx_free);
 
 	/* consider ufx_data freed */
+
+	mutex_unlock(&disconnect_mutex);
 }
 
 static struct usb_driver ufx_driver = {
author maintainer
#4 lore raw

PATCH 4/255 ALSA: usb-audio: Fix NULL dererence at error path

In reply to Greg Kroah-Hartman

From: Takashi Iwai <[email protected]>

commit 568be8aaf8a535f79c4db76cabe17b035aa2584d upstream.

At an error path to release URB buffers and contexts, the driver might hit a NULL dererence for u->urb pointer, when u->buffer_size has been already set but the actual URB allocation failed.

Fix it by adding the NULL check of urb. Also, make sure that buffer_size is cleared after the error path or the close.

---
 sound/usb/endpoint.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
sound/usb/endpoint.c +2 -1
@@ -73,12 +73,13 @@ static inline unsigned get_usb_high_spee
  */
 static void release_urb_ctx(struct snd_urb_ctx *u)
 {
-	if (u->buffer_size)
+	if (u->urb && u->buffer_size)
 		usb_free_coherent(u->ep->chip->dev, u->buffer_size,
 				  u->urb->transfer_buffer,
 				  u->urb->transfer_dma);
 	usb_free_urb(u->urb);
 	u->urb = NULL;
+	u->buffer_size = 0;
 }
 
 static const char *usb_error_string(int err)
author maintainer
#125 lore raw

PATCH 112/255 ARM: dts: turris-omnia: Fix mpp26 pin name and comment

In reply to Greg Kroah-Hartman

From: Marek Behún <[email protected]>

[ Upstream commit 49e93898f0dc177e645c22d0664813567fd9ec00 ]

There is a bug in Turris Omnia's schematics, whereupon the MPP[26] pin, which is routed to CN11 pin header, is documented as SPI CS1, but MPP[26] pin does not support this function. Instead it controls chip select 2 if in "spi0" mode.

Fix the name of the pin node in pinctrl node and fix the comment in SPI node.

Fixes 26ca8b52d6e1 ("ARM: dts: add support for Turris Omnia")
---
 arch/arm/boot/dts/armada-385-turris-omnia.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
arch/arm/boot/dts/armada-385-turris-omnia.dts +2 -2
index fde4c302f08e..92e08486ec81 100644
@@ -307,7 +307,7 @@
 		marvell,function = "spi0";
 	};
 
-	spi0cs1_pins: spi0cs1-pins {
+	spi0cs2_pins: spi0cs2-pins {
 		marvell,pins = "mpp26";
 		marvell,function = "spi0";
 	};
@@ -342,7 +342,7 @@
 		};
 	};
 
-	/* MISO, MOSI, SCLK and CS1 are routed to pin header CN11 */
+	/* MISO, MOSI, SCLK and CS2 are routed to pin header CN11 */
 };
 
 &uart0 {
Signature · 1 line
2.35.1
author maintainer
#60 lore raw

PATCH 60/255 sh: machvec: Use char[] for section boundaries

In reply to Greg Kroah-Hartman

From: Kees Cook <[email protected]>

[ Upstream commit c5783af354688b24abd359f7086c282ec74de993 ]

As done for other sections, define the extern as a character array, which relaxes many of the compiler-time object size checks, which would otherwise assume it's a single long. Solves the following build error:

arch/sh/kernel/machvec.c: error: array subscript 'struct sh_machine_vector[0]' is partly outside array bounds of 'long int[1]' [-Werror=array-bounds]: => 105:33

---
 arch/sh/include/asm/sections.h |  2 +-
 arch/sh/kernel/machvec.c       | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)
arch/sh/include/asm/sections.h +1 -1
index 8edb824049b9..0cb0ca149ac3 100644
@@ -4,7 +4,7 @@
 
 #include <asm-generic/sections.h>
 
-extern long __machvec_start, __machvec_end;
+extern char __machvec_start[], __machvec_end[];
 extern char __uncached_start, __uncached_end;
 extern char __start_eh_frame[], __stop_eh_frame[];
 
arch/sh/kernel/machvec.c +5 -5
index beadbbdb4486..3e0a4306f1d5 100644
@@ -19,8 +19,8 @@
 #define MV_NAME_SIZE 32
 
 #define for_each_mv(mv) \
-	for ((mv) = (struct sh_machine_vector *)&__machvec_start; \
-	     (mv) && (unsigned long)(mv) < (unsigned long)&__machvec_end; \
+	for ((mv) = (struct sh_machine_vector *)__machvec_start; \
+	     (mv) && (unsigned long)(mv) < (unsigned long)__machvec_end; \
 	     (mv)++)
 
 static struct sh_machine_vector * __init get_mv_byname(const char *name)
@@ -86,8 +86,8 @@ void __init sh_mv_setup(void)
 	if (!machvec_selected) {
 		unsigned long machvec_size;
 
-		machvec_size = ((unsigned long)&__machvec_end -
-				(unsigned long)&__machvec_start);
+		machvec_size = ((unsigned long)__machvec_end -
+				(unsigned long)__machvec_start);
 
 		/*
 		 * Sanity check for machvec section alignment. Ensure
@@ -101,7 +101,7 @@ void __init sh_mv_setup(void)
 		 * vector (usually the only one) from .machvec.init.
 		 */
 		if (machvec_size >= sizeof(struct sh_machine_vector))
-			sh_mv = *(struct sh_machine_vector *)&__machvec_start;
+			sh_mv = *(struct sh_machine_vector *)__machvec_start;
 	}
 
 	printk(KERN_NOTICE "Booting machvec: %s\n", get_system_type());
Signature · 1 line
2.35.1
author maintainer
#66 lore raw

PATCH 66/255 x86/resctrl: Fix to restore to original value when re-enabling hardware prefetch register

In reply to Greg Kroah-Hartman

From: Kohei Tarumizu <[email protected]>

[ Upstream commit 499c8bb4693d1c8d8f3d6dd38e5bdde3ff5bd906 ]

The current pseudo_lock.c code overwrites the value of the MSR_MISC_FEATURE_CONTROL to 0 even if the original value is not 0. Therefore, modify it to save and restore the original values.

Fixes 018961ae5579 ("x86/intel_rdt: Pseudo-lock region creation/removal core")
Fixes 443810fe6160 ("x86/intel_rdt: Create debugfs files for pseudo-locking testing")
Fixes 8a2fc0e1bc0c ("x86/intel_rdt: More precise L2 hit/miss measurements")
---
 arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
arch/x86/kernel/cpu/resctrl/pseudo_lock.c +9 -3
index d7623e1b927d..f186470c2e66 100644
@@ -416,6 +416,7 @@ static int pseudo_lock_fn(void *_rdtgrp)
 	struct pseudo_lock_region *plr = rdtgrp->plr;
 	u32 rmid_p, closid_p;
 	unsigned long i;
+	u64 saved_msr;
 #ifdef CONFIG_KASAN
 	/*
 	 * The registers used for local register variables are also used
@@ -459,6 +460,7 @@ static int pseudo_lock_fn(void *_rdtgrp)
 	 * the buffer and evict pseudo-locked memory read earlier from the
 	 * cache.
 	 */
+	saved_msr = __rdmsr(MSR_MISC_FEATURE_CONTROL);
 	__wrmsr(MSR_MISC_FEATURE_CONTROL, prefetch_disable_bits, 0x0);
 	closid_p = this_cpu_read(pqr_state.cur_closid);
 	rmid_p = this_cpu_read(pqr_state.cur_rmid);
@@ -510,7 +512,7 @@ static int pseudo_lock_fn(void *_rdtgrp)
 	__wrmsr(IA32_PQR_ASSOC, rmid_p, closid_p);
 
 	/* Re-enable the hardware prefetcher(s) */
-	wrmsr(MSR_MISC_FEATURE_CONTROL, 0x0, 0x0);
+	wrmsrl(MSR_MISC_FEATURE_CONTROL, saved_msr);
 	local_irq_enable();
 
 	plr->thread_done = 1;
@@ -867,6 +869,7 @@ bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d)
 static int measure_cycles_lat_fn(void *_plr)
 {
 	struct pseudo_lock_region *plr = _plr;
+	u32 saved_low, saved_high;
 	unsigned long i;
 	u64 start, end;
 	void *mem_r;
@@ -875,6 +878,7 @@ static int measure_cycles_lat_fn(void *_plr)
 	/*
 	 * Disable hardware prefetchers.
 	 */
+	rdmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high);
 	wrmsr(MSR_MISC_FEATURE_CONTROL, prefetch_disable_bits, 0x0);
 	mem_r = READ_ONCE(plr->kmem);
 	/*
@@ -891,7 +895,7 @@ static int measure_cycles_lat_fn(void *_plr)
 		end = rdtsc_ordered();
 		trace_pseudo_lock_mem_latency((u32)(end - start));
 	}
-	wrmsr(MSR_MISC_FEATURE_CONTROL, 0x0, 0x0);
+	wrmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high);
 	local_irq_enable();
 	plr->thread_done = 1;
 	wake_up_interruptible(&plr->lock_thread_wq);
@@ -936,6 +940,7 @@ static int measure_residency_fn(struct perf_event_attr *miss_attr,
 	u64 hits_before = 0, hits_after = 0, miss_before = 0, miss_after = 0;
 	struct perf_event *miss_event, *hit_event;
 	int hit_pmcnum, miss_pmcnum;
+	u32 saved_low, saved_high;
 	unsigned int line_size;
 	unsigned int size;
 	unsigned long i;
@@ -969,6 +974,7 @@ static int measure_residency_fn(struct perf_event_attr *miss_attr,
 	/*
 	 * Disable hardware prefetchers.
 	 */
+	rdmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high);
 	wrmsr(MSR_MISC_FEATURE_CONTROL, prefetch_disable_bits, 0x0);
 
 	/* Initialize rest of local variables */
@@ -1027,7 +1033,7 @@ static int measure_residency_fn(struct perf_event_attr *miss_attr,
 	 */
 	rmb();
 	/* Re-enable hardware prefetchers */
-	wrmsr(MSR_MISC_FEATURE_CONTROL, 0x0, 0x0);
+	wrmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high);
 	local_irq_enable();
 out_hit:
 	perf_event_release_kernel(hit_event);
Signature · 1 line
2.35.1
author maintainer
#75 lore raw

PATCH 75/255 x86/microcode/AMD: Track patch allocation size explicitly

In reply to Greg Kroah-Hartman

From: Kees Cook <[email protected]>

[ Upstream commit 712f210a457d9c32414df246a72781550bc23ef6 ]

In preparation for reducing the use of ksize(), record the actual allocation size for later memcpy(). This avoids copying extra (uninitialized!) bytes into the patch buffer when the requested allocation size isn't exactly the size of a kmalloc bucket. Additionally, fix potential future issues where runtime bounds checking will notice that the buffer was allocated to a smaller value than returned by ksize().

---
 arch/x86/include/asm/microcode.h    | 1 +
 arch/x86/kernel/cpu/microcode/amd.c | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)
arch/x86/include/asm/microcode.h +1 -0
index 91a06cef50c1..f73327397b89 100644
@@ -9,6 +9,7 @@
 struct ucode_patch {
 	struct list_head plist;
 	void *data;		/* Intel uses only this one */
+	unsigned int size;
 	u32 patch_id;
 	u16 equiv_cpu;
 };
arch/x86/kernel/cpu/microcode/amd.c +2 -1
index a0e52bd00ecc..3b82d022dcd4 100644
@@ -783,6 +783,7 @@ static int verify_and_add_patch(u8 family, u8 *fw, unsigned int leftover,
 		kfree(patch);
 		return -EINVAL;
 	}
+	patch->size = *patch_size;
 
 	mc_hdr      = (struct microcode_header_amd *)(fw + SECTION_HDR_SIZE);
 	proc_id     = mc_hdr->processor_rev_id;
@@ -864,7 +865,7 @@ load_microcode_amd(bool save, u8 family, const u8 *data, size_t size)
 		return ret;
 
 	memset(amd_ucode_patch, 0, PATCH_MAX_SIZE);
-	memcpy(amd_ucode_patch, p->data, min_t(u32, ksize(p->data), PATCH_MAX_SIZE));
+	memcpy(amd_ucode_patch, p->data, min_t(u32, p->size, PATCH_MAX_SIZE));
 
 	return ret;
 }
Signature · 1 line
2.35.1
author maintainer
#110 lore raw

PATCH 97/255 ALSA: hda: beep: Simplify keep-power-at-enable behavior

In reply to Greg Kroah-Hartman

From: Takashi Iwai <[email protected]>

[ Upstream commit 4c8d695cb9bc5f6fd298a586602947b2fc099a64 ]

The recent fix for IDT codecs to keep the power up while the beep is enabled can be better integrated into the beep helper code. This patch cleans up the code with refactoring.

Fixes 414d38ba8710 ("ALSA: hda/sigmatel: Keep power up while beep is enabled")
---
 sound/pci/hda/hda_beep.c       | 15 +++++++++++++--
 sound/pci/hda/hda_beep.h       |  1 +
 sound/pci/hda/patch_sigmatel.c | 25 ++-----------------------
 3 files changed, 16 insertions(+), 25 deletions(-)
sound/pci/hda/hda_beep.c +13 -2
index c6e1e03a5e4d..5a50b6c1d604 100644
@@ -118,6 +118,12 @@ static int snd_hda_beep_event(struct input_dev *dev, unsigned int type,
 	return 0;
 }
 
+static void turn_on_beep(struct hda_beep *beep)
+{
+	if (beep->keep_power_at_enable)
+		snd_hda_power_up_pm(beep->codec);
+}
+
 static void turn_off_beep(struct hda_beep *beep)
 {
 	cancel_work_sync(&beep->beep_work);
@@ -125,6 +131,8 @@ static void turn_off_beep(struct hda_beep *beep)
 		/* turn off beep */
 		generate_tone(beep, 0);
 	}
+	if (beep->keep_power_at_enable)
+		snd_hda_power_down_pm(beep->codec);
 }
 
 /**
@@ -140,7 +148,9 @@ int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
 	enable = !!enable;
 	if (beep->enabled != enable) {
 		beep->enabled = enable;
-		if (!enable)
+		if (enable)
+			turn_on_beep(beep);
+		else
 			turn_off_beep(beep);
 		return 1;
 	}
@@ -167,7 +177,8 @@ static int beep_dev_disconnect(struct snd_device *device)
 		input_unregister_device(beep->dev);
 	else
 		input_free_device(beep->dev);
-	turn_off_beep(beep);
+	if (beep->enabled)
+		turn_off_beep(beep);
 	return 0;
 }
 
sound/pci/hda/hda_beep.h +1 -0
index a25358a4807a..db76e3ddba65 100644
@@ -25,6 +25,7 @@ struct hda_beep {
 	unsigned int enabled:1;
 	unsigned int linear_tone:1;	/* linear tone for IDT/STAC codec */
 	unsigned int playing:1;
+	unsigned int keep_power_at_enable:1;	/* set by driver */
 	struct work_struct beep_work; /* scheduled task for beep event */
 	struct mutex mutex;
 	void (*power_hook)(struct hda_beep *beep, bool on);
sound/pci/hda/patch_sigmatel.c +2 -23
index 04a89171327d..e42a6c5c1ba3 100644
@@ -4302,6 +4302,8 @@ static int stac_parse_auto_config(struct hda_codec *codec)
 		if (codec->beep) {
 			/* IDT/STAC codecs have linear beep tone parameter */
 			codec->beep->linear_tone = spec->linear_tone_beep;
+			/* keep power up while beep is enabled */
+			codec->beep->keep_power_at_enable = 1;
 			/* if no beep switch is available, make its own one */
 			caps = query_amp_caps(codec, nid, HDA_OUTPUT);
 			if (!(caps & AC_AMPCAP_MUTE)) {
@@ -4442,28 +4444,6 @@ static int stac_suspend(struct hda_codec *codec)
 	stac_shutup(codec);
 	return 0;
 }
-
-static int stac_check_power_status(struct hda_codec *codec, hda_nid_t nid)
-{
-#ifdef CONFIG_SND_HDA_INPUT_BEEP
-	struct sigmatel_spec *spec = codec->spec;
-#endif
-	int ret = snd_hda_gen_check_power_status(codec, nid);
-
-#ifdef CONFIG_SND_HDA_INPUT_BEEP
-	if (nid == spec->gen.beep_nid && codec->beep) {
-		if (codec->beep->enabled != spec->beep_power_on) {
-			spec->beep_power_on = codec->beep->enabled;
-			if (spec->beep_power_on)
-				snd_hda_power_up_pm(codec);
-			else
-				snd_hda_power_down_pm(codec);
-		}
-		ret |= spec->beep_power_on;
-	}
-#endif
-	return ret;
-}
 #else
 #define stac_suspend		NULL
 #endif /* CONFIG_PM */
@@ -4476,7 +4456,6 @@ static const struct hda_codec_ops stac_patch_ops = {
 	.unsol_event = snd_hda_jack_unsol_event,
 #ifdef CONFIG_PM
 	.suspend = stac_suspend,
-	.check_power_status = stac_check_power_status,
 #endif
 	.reboot_notify = stac_shutup,
 };
Signature · 1 line
2.35.1
author maintainer
#72 lore raw

PATCH 72/255 wifi: rtl8xxxu: gen2: Fix mistake in path B IQ calibration

In reply to Greg Kroah-Hartman

From: Bitterblue Smith <[email protected]>

[ Upstream commit e963a19c64ac0d2f8785d36a27391abd91ac77aa ]

Found by comparing with the vendor driver. Currently this affects only the RTL8192EU, which is the only gen2 chip with 2 TX paths supported by this driver. It's unclear what kind of effect the mistake had in practice, since I don't have any RTL8192EU devices to test it.

Fixes e1547c535ede ("rtl8xxxu: First stab at adding IQK calibration for 8723bu parts")
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +2 -2
index 977ebb647c0e..b472dc4c551e 100644
@@ -2926,12 +2926,12 @@ bool rtl8xxxu_gen2_simularity_compare(struct rtl8xxxu_priv *priv,
 		}
 
 		if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
-			/* path B RX OK */
+			/* path B TX OK */
 			for (i = 4; i < 6; i++)
 				result[3][i] = result[c1][i];
 		}
 
-		if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
+		if (!(simubitmap & 0xc0) && priv->tx_paths > 1) {
 			/* path B RX OK */
 			for (i = 6; i < 8; i++)
 				result[3][i] = result[c1][i];
Signature · 1 line
2.35.1
author maintainer
#57 lore raw

PATCH 57/255 selinux: use "grep -E" instead of "egrep"

In reply to Greg Kroah-Hartman

From: Greg Kroah-Hartman <[email protected]>

commit c969bb8dbaf2f3628927eae73e7c579a74cf1b6e upstream.

The latest version of grep claims that egrep is now obsolete so the build now contains warnings that look like:
egrep: warning: egrep is obsolescent; using grep -E
fix this by using "grep -E" instead.

Cc Paul Moore <[email protected]>
Cc Stephen Smalley <[email protected]>
Cc Eric Paris <[email protected]>
[PM: tweak to remove vdso reference, cleanup subj line]
---
 scripts/selinux/install_policy.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
scripts/selinux/install_policy.sh +1 -1
@@ -78,7 +78,7 @@ cd /etc/selinux/dummy/contexts/files
 $SF -F file_contexts /
 
 mounts=`cat /proc/$$/mounts | \
-	egrep "ext[234]|jfs|xfs|reiserfs|jffs2|gfs2|btrfs|f2fs|ocfs2" | \
+	grep -E "ext[234]|jfs|xfs|reiserfs|jffs2|gfs2|btrfs|f2fs|ocfs2" | \
 	awk '{ print $2 '}`
 $SF -F file_contexts $mounts
 
author maintainer
#112 lore raw

PATCH 99/255 mmc: au1xmmc: Fix an error handling path in au1xmmc_probe()

In reply to Greg Kroah-Hartman

From: Christophe JAILLET <[email protected]>

[ Upstream commit 5cbedf52608cc3cbc1c2a9a861fb671620427a20 ]

If clk_prepare_enable() fails, there is no point in calling clk_disable_unprepare() in the error handling path.

Move the out_clk label at the right place.

---
 drivers/mmc/host/au1xmmc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/mmc/host/au1xmmc.c +2 -1
index bc8aeb47a7b4..9c4a67f4195e 100644
@@ -1116,8 +1116,9 @@ static int au1xmmc_probe(struct platform_device *pdev)
 	if (host->platdata && host->platdata->cd_setup &&
 	    !(mmc->caps & MMC_CAP_NEEDS_POLL))
 		host->platdata->cd_setup(mmc, 0);
-out_clk:
+
 	clk_disable_unprepare(host->clk);
+out_clk:
 	clk_put(host->clk);
 out_irq:
 	free_irq(host->irq, host);
Signature · 1 line
2.35.1
author maintainer
#43 lore raw

PATCH 43/255 ext4: make ext4_lazyinit_thread freezable

In reply to Greg Kroah-Hartman

From: Lalith Rajendran <[email protected]>

commit 3b575495ab8dbb4dbe85b4ac7f991693c3668ff5 upstream.

ext4_lazyinit_thread is not set freezable. Hence when the thread calls try_to_freeze it doesn't freeze during suspend and continues to send requests to the storage during suspend, resulting in suspend failures.

---
 fs/ext4/super.c |    1 +
 1 file changed, 1 insertion(+)
fs/ext4/super.c +1 -0
@@ -3157,6 +3157,7 @@ static int ext4_lazyinit_thread(void *ar
 	unsigned long next_wakeup, cur;
 
 	BUG_ON(NULL == eli);
+	set_freezable();
 
 cont_thread:
 	while (true) {
author maintainer
#67 lore raw

PATCH 67/255 wifi: rtl8xxxu: tighten bounds checking in rtl8xxxu_read_efuse()

In reply to Greg Kroah-Hartman

From: Dan Carpenter <[email protected]>

[ Upstream commit 620d5eaeb9059636864bda83ca1c68c20ede34a5 ]

There some bounds checking to ensure that "map_addr" is not out of bounds before the start of the loop. But the checking needs to be done as we iterate through the loop because "map_addr" gets larger as we iterate.

---
 .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c  | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +7 -7
index 048984ca81fd..3062103e216a 100644
@@ -1875,13 +1875,6 @@ static int rtl8xxxu_read_efuse(struct rtl8xxxu_priv *priv)
 
 		/* We have 8 bits to indicate validity */
 		map_addr = offset * 8;
-		if (map_addr >= EFUSE_MAP_LEN) {
-			dev_warn(dev, "%s: Illegal map_addr (%04x), "
-				 "efuse corrupt!\n",
-				 __func__, map_addr);
-			ret = -EINVAL;
-			goto exit;
-		}
 		for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 			/* Check word enable condition in the section */
 			if (word_mask & BIT(i)) {
@@ -1892,6 +1885,13 @@ static int rtl8xxxu_read_efuse(struct rtl8xxxu_priv *priv)
 			ret = rtl8xxxu_read_efuse8(priv, efuse_addr++, &val8);
 			if (ret)
 				goto exit;
+			if (map_addr >= EFUSE_MAP_LEN - 1) {
+				dev_warn(dev, "%s: Illegal map_addr (%04x), "
+					 "efuse corrupt!\n",
+					 __func__, map_addr);
+				ret = -EINVAL;
+				goto exit;
+			}
 			priv->efuse_wifi.raw[map_addr++] = val8;
 
 			ret = rtl8xxxu_read_efuse8(priv, efuse_addr++, &val8);
Signature · 1 line
2.35.1
author maintainer
#55 lore raw

PATCH 55/255 gcov: support GCC 12.1 and newer compilers

In reply to Greg Kroah-Hartman

From: Martin Liska <[email protected]>

commit 977ef30a7d888eeb52fb6908f99080f33e5309a8 upstream.

Starting with GCC 12.1, the created .gcda format can't be read by gcov tool. There are 2 significant changes to the .gcda file format that need to be supported:

a) [gcov: Use system IO buffering] (23eb66d1d46a34cb28c4acbdf8a1deb80a7c5a05) changed that all sizes in the format are in bytes and not in words (4B)

b) [gcov: make profile merging smarter] (72e0c742bd01f8e7e6dcca64042b9ad7e75979de) add a new checksum to the file header.

Tested with GCC 7.5, 10.4, 12.2 and the current master.

---
 kernel/gcov/gcc_4_7.c |   18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)
kernel/gcov/gcc_4_7.c +16 -2
@@ -33,6 +33,13 @@
 
 #define GCOV_TAG_FUNCTION_LENGTH	3
 
+/* Since GCC 12.1 sizes are in BYTES and not in WORDS (4B). */
+#if (__GNUC__ >= 12)
+#define GCOV_UNIT_SIZE				4
+#else
+#define GCOV_UNIT_SIZE				1
+#endif
+
 static struct gcov_info *gcov_info_head;
 
 /**
@@ -451,12 +458,18 @@ static size_t convert_to_gcda(char *buff
 	pos += store_gcov_u32(buffer, pos, info->version);
 	pos += store_gcov_u32(buffer, pos, info->stamp);
 
+#if (__GNUC__ >= 12)
+	/* Use zero as checksum of the compilation unit. */
+	pos += store_gcov_u32(buffer, pos, 0);
+#endif
+
 	for (fi_idx = 0; fi_idx < info->n_functions; fi_idx++) {
 		fi_ptr = info->functions[fi_idx];
 
 		/* Function record. */
 		pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION);
-		pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION_LENGTH);
+		pos += store_gcov_u32(buffer, pos,
+			GCOV_TAG_FUNCTION_LENGTH * GCOV_UNIT_SIZE);
 		pos += store_gcov_u32(buffer, pos, fi_ptr->ident);
 		pos += store_gcov_u32(buffer, pos, fi_ptr->lineno_checksum);
 		pos += store_gcov_u32(buffer, pos, fi_ptr->cfg_checksum);
@@ -470,7 +483,8 @@ static size_t convert_to_gcda(char *buff
 			/* Counter record. */
 			pos += store_gcov_u32(buffer, pos,
 					      GCOV_TAG_FOR_COUNTER(ct_idx));
-			pos += store_gcov_u32(buffer, pos, ci_ptr->num * 2);
+			pos += store_gcov_u32(buffer, pos,
+				ci_ptr->num * 2 * GCOV_UNIT_SIZE);
 
 			for (cv_idx = 0; cv_idx < ci_ptr->num; cv_idx++) {
 				pos += store_gcov_u64(buffer, pos,
author maintainer
#63 lore raw

PATCH 63/255 wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()

In reply to Greg Kroah-Hartman

From: Wen Gong <[email protected]>

[ Upstream commit f020d9570a04df0762a2ac5c50cf1d8c511c9164 ]

When peer delete failed in a disconnect operation, use-after-free detected by KFENCE in below log. It is because for each vdev_id and address, it has only one struct ath10k_peer, it is allocated in ath10k_peer_map_event(). When connected to an AP, it has more than one HTT_T2H_MSG_TYPE_PEER_MAP reported from firmware, then the array peer_map of struct ath10k will be set muti-elements to the same ath10k_peer in ath10k_peer_map_event(). When peer delete failed in ath10k_sta_state(), the ath10k_peer will be free for the 1st peer id in array peer_map of struct ath10k, and then use-after-free happened for the 2nd peer id because they map to the same ath10k_peer.

And clean up all peers in array peer_map for the ath10k_peer, then user-after-free disappeared

peer map event log:

[  306.911021] wlan0: authenticate with b0:2a:43:e6:75:0e
[  306.957187] ath10k_pci 0000:01:00.0: mac vdev 0 peer create b0:2a:43:e6:75:0e (new sta) sta 1 / 32 peer 1 / 33
[  306.957395] ath10k_pci 0000:01:00.0: htt peer map vdev 0 peer b0:2a:43:e6:75:0e id 246
[  306.957404] ath10k_pci 0000:01:00.0: htt peer map vdev 0 peer b0:2a:43:e6:75:0e id 198
[  306.986924] ath10k_pci 0000:01:00.0: htt peer map vdev 0 peer b0:2a:43:e6:75:0e id 166

peer unmap event log:

[  435.715691] wlan0: deauthenticating from b0:2a:43:e6:75:0e by local choice (Reason: 3=DEAUTH_LEAVING)
[  435.716802] ath10k_pci 0000:01:00.0: mac vdev 0 peer delete b0:2a:43:e6:75:0e sta ffff990e0e9c2b50 (sta gone)
[  435.717177] ath10k_pci 0000:01:00.0: htt peer unmap vdev 0 peer b0:2a:43:e6:75:0e id 246
[  435.717186] ath10k_pci 0000:01:00.0: htt peer unmap vdev 0 peer b0:2a:43:e6:75:0e id 198
[  435.717193] ath10k_pci 0000:01:00.0: htt peer unmap vdev 0 peer b0:2a:43:e6:75:0e id 166

use-after-free log:

[21705.888627] wlan0: deauthenticating from d0:76:8f:82:be:75 by local choice (Reason: 3=DEAUTH_LEAVING)
[21713.799910] ath10k_pci 0000:01:00.0: failed to delete peer d0:76:8f:82:be:75 for vdev 0: -110
[21713.799925] ath10k_pci 0000:01:00.0: found sta peer d0:76:8f:82:be:75 (ptr 0000000000000000 id 102) entry on vdev 0 after it was supposedly removed
[21713.799968] ==================================================================
[21713.799991] BUG: KFENCE: use-after-free read in ath10k_sta_state+0x265/0xb8a [ath10k_core]
[21713.799991]
[21713.799997] Use-after-free read at 0x00000000abe1c75e (in kfence-#69):
[21713.800010]  ath10k_sta_state+0x265/0xb8a [ath10k_core]
[21713.800041]  drv_sta_state+0x115/0x677 [mac80211]
[21713.800059]  __sta_info_destroy_part2+0xb1/0x133 [mac80211]
[21713.800076]  __sta_info_flush+0x11d/0x162 [mac80211]
[21713.800093]  ieee80211_set_disassoc+0x12d/0x2f4 [mac80211]
[21713.800110]  ieee80211_mgd_deauth+0x26c/0x29b [mac80211]
[21713.800137]  cfg80211_mlme_deauth+0x13f/0x1bb [cfg80211]
[21713.800153]  nl80211_deauthenticate+0xf8/0x121 [cfg80211]
[21713.800161]  genl_rcv_msg+0x38e/0x3be
[21713.800166]  netlink_rcv_skb+0x89/0xf7
[21713.800171]  genl_rcv+0x28/0x36
[21713.800176]  netlink_unicast+0x179/0x24b
[21713.800181]  netlink_sendmsg+0x3a0/0x40e
[21713.800187]  sock_sendmsg+0x72/0x76
[21713.800192]  ____sys_sendmsg+0x16d/0x1e3
[21713.800196]  ___sys_sendmsg+0x95/0xd1
[21713.800200]  __sys_sendmsg+0x85/0xbf
[21713.800205]  do_syscall_64+0x43/0x55
[21713.800210]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[21713.800213]
[21713.800219] kfence-#69: 0x000000009149b0d5-0x000000004c0697fb, size=1064, cache=kmalloc-2k
[21713.800219]
[21713.800224] allocated by task 13 on cpu 0 at 21705.501373s:
[21713.800241]  ath10k_peer_map_event+0x7e/0x154 [ath10k_core]
[21713.800254]  ath10k_htt_t2h_msg_handler+0x586/0x1039 [ath10k_core]
[21713.800265]  ath10k_htt_htc_t2h_msg_handler+0x12/0x28 [ath10k_core]
[21713.800277]  ath10k_htc_rx_completion_handler+0x14c/0x1b5 [ath10k_core]
[21713.800283]  ath10k_pci_process_rx_cb+0x195/0x1df [ath10k_pci]
[21713.800294]  ath10k_ce_per_engine_service+0x55/0x74 [ath10k_core]
[21713.800305]  ath10k_ce_per_engine_service_any+0x76/0x84 [ath10k_core]
[21713.800310]  ath10k_pci_napi_poll+0x49/0x144 [ath10k_pci]
[21713.800316]  net_rx_action+0xdc/0x361
[21713.800320]  __do_softirq+0x163/0x29a
[21713.800325]  asm_call_irq_on_stack+0x12/0x20
[21713.800331]  do_softirq_own_stack+0x3c/0x48
[21713.800337]  __irq_exit_rcu+0x9b/0x9d
[21713.800342]  common_interrupt+0xc9/0x14d
[21713.800346]  asm_common_interrupt+0x1e/0x40
[21713.800351]  ksoftirqd_should_run+0x5/0x16
[21713.800357]  smpboot_thread_fn+0x148/0x211
[21713.800362]  kthread+0x150/0x15f
[21713.800367]  ret_from_fork+0x22/0x30
[21713.800370]
[21713.800374] freed by task 708 on cpu 1 at 21713.799953s:
[21713.800498]  ath10k_sta_state+0x2c6/0xb8a [ath10k_core]
[21713.800515]  drv_sta_state+0x115/0x677 [mac80211]
[21713.800532]  __sta_info_destroy_part2+0xb1/0x133 [mac80211]
[21713.800548]  __sta_info_flush+0x11d/0x162 [mac80211]
[21713.800565]  ieee80211_set_disassoc+0x12d/0x2f4 [mac80211]
[21713.800581]  ieee80211_mgd_deauth+0x26c/0x29b [mac80211]
[21713.800598]  cfg80211_mlme_deauth+0x13f/0x1bb [cfg80211]
[21713.800614]  nl80211_deauthenticate+0xf8/0x121 [cfg80211]
[21713.800619]  genl_rcv_msg+0x38e/0x3be
[21713.800623]  netlink_rcv_skb+0x89/0xf7
[21713.800628]  genl_rcv+0x28/0x36
[21713.800632]  netlink_unicast+0x179/0x24b
[21713.800637]  netlink_sendmsg+0x3a0/0x40e
[21713.800642]  sock_sendmsg+0x72/0x76
[21713.800646]  ____sys_sendmsg+0x16d/0x1e3
[21713.800651]  ___sys_sendmsg+0x95/0xd1
[21713.800655]  __sys_sendmsg+0x85/0xbf
[21713.800659]  do_syscall_64+0x43/0x55
[21713.800663]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1

Fixes d0eeafad1189 ("ath10k: Clean up peer when sta goes away.")
---
 drivers/net/wireless/ath/ath10k/mac.c | 54 ++++++++++++++-------------
 1 file changed, 29 insertions(+), 25 deletions(-)
drivers/net/wireless/ath/ath10k/mac.c +29 -25
index 3026eb54a7f2..afa3cc92fc2a 100644
@@ -856,11 +856,36 @@ static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
 	return 0;
 }
 
+static void ath10k_peer_map_cleanup(struct ath10k *ar, struct ath10k_peer *peer)
+{
+	int peer_id, i;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	for_each_set_bit(peer_id, peer->peer_ids,
+			 ATH10K_MAX_NUM_PEER_IDS) {
+		ar->peer_map[peer_id] = NULL;
+	}
+
+	/* Double check that peer is properly un-referenced from
+	 * the peer_map
+	 */
+	for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
+		if (ar->peer_map[i] == peer) {
+			ath10k_warn(ar, "removing stale peer_map entry for %pM (ptr %pK idx %d)\n",
+				    peer->addr, peer, i);
+			ar->peer_map[i] = NULL;
+		}
+	}
+
+	list_del(&peer->list);
+	kfree(peer);
+	ar->num_peers--;
+}
+
 static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
 {
 	struct ath10k_peer *peer, *tmp;
-	int peer_id;
-	int i;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
@@ -872,25 +897,7 @@ static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
 		ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
 			    peer->addr, vdev_id);
 
-		for_each_set_bit(peer_id, peer->peer_ids,
-				 ATH10K_MAX_NUM_PEER_IDS) {
-			ar->peer_map[peer_id] = NULL;
-		}
-
-		/* Double check that peer is properly un-referenced from
-		 * the peer_map
-		 */
-		for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
-			if (ar->peer_map[i] == peer) {
-				ath10k_warn(ar, "removing stale peer_map entry for %pM (ptr %pK idx %d)\n",
-					    peer->addr, peer, i);
-				ar->peer_map[i] = NULL;
-			}
-		}
-
-		list_del(&peer->list);
-		kfree(peer);
-		ar->num_peers--;
+		ath10k_peer_map_cleanup(ar, peer);
 	}
 	spin_unlock_bh(&ar->data_lock);
 }
@@ -6641,10 +6648,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 				/* Clean up the peer object as well since we
 				 * must have failed to do this above.
 				 */
-				list_del(&peer->list);
-				ar->peer_map[i] = NULL;
-				kfree(peer);
-				ar->num_peers--;
+				ath10k_peer_map_cleanup(ar, peer);
 			}
 		}
 		spin_unlock_bh(&ar->data_lock);
Signature · 1 line
2.35.1
author maintainer
#116 lore raw

PATCH 103/255 mmc: wmt-sdmmc: Fix an error handling path in wmt_mci_probe()

In reply to Greg Kroah-Hartman

From: Christophe JAILLET <[email protected]>

[ Upstream commit cb58188ad90a61784a56a64f5107faaf2ad323e7 ]

A dma_free_coherent() call is missing in the error handling path of the probe, as already done in the remove function.

---
 drivers/mmc/host/wmt-sdmmc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
drivers/mmc/host/wmt-sdmmc.c +4 -1
index 2c4ba1fa4bbf..d774068dba30 100644
@@ -849,7 +849,7 @@ static int wmt_mci_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->clk_sdmmc)) {
 		dev_err(&pdev->dev, "Error getting clock\n");
 		ret = PTR_ERR(priv->clk_sdmmc);
-		goto fail5;
+		goto fail5_and_a_half;
 	}
 
 	ret = clk_prepare_enable(priv->clk_sdmmc);
@@ -866,6 +866,9 @@ static int wmt_mci_probe(struct platform_device *pdev)
 	return 0;
 fail6:
 	clk_put(priv->clk_sdmmc);
+fail5_and_a_half:
+	dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16,
+			  priv->dma_desc_buffer, priv->dma_desc_device_addr);
 fail5:
 	free_irq(dma_irq, priv);
 fail4:
Signature · 1 line
2.35.1
author maintainer
#56 lore raw

PATCH 56/255 drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()

In reply to Greg Kroah-Hartman

From: Jianglei Nie <[email protected]>

commit 540dfd188ea2940582841c1c220bd035a7db0e51 upstream.

nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code back to the caller. On failures, ttm will call nouveau_bo_del_ttm() and free the memory.Thus, when nouveau_bo_init() returns an error, the gem object has already been released. Then the call to nouveau_bo_ref() will use the freed "nvbo->bo" and lead to a use-after-free bug.

We should delete the call to nouveau_bo_ref() to avoid the use-after-free.

Fixes 019cbd4a4feb ("drm/nouveau: Initialize GEM object before TTM object")
Cc Thierry Reding <[email protected]>
Cc <[email protected]> # v5.4+
---
 drivers/gpu/drm/nouveau/nouveau_prime.c |    1 -
 1 file changed, 1 deletion(-)
drivers/gpu/drm/nouveau/nouveau_prime.c +0 -1
@@ -90,7 +90,6 @@ struct drm_gem_object *nouveau_gem_prime
 
 	ret = nouveau_bo_init(nvbo, size, align, flags, sg, robj);
 	if (ret) {
-		nouveau_bo_ref(NULL, &nvbo);
 		obj = ERR_PTR(ret);
 		goto unlock;
 	}
author maintainer
#81 lore raw

PATCH 81/255 sctp: handle the error returned from sctp_auth_asoc_init_active_key

In reply to Greg Kroah-Hartman

From: Xin Long <[email protected]>

[ Upstream commit 022152aaebe116a25c39818a07e175a8cd3c1e11 ]

When it returns an error from sctp_auth_asoc_init_active_key(), the active_key is actually not updated. The old sh_key will be freeed while it's still used as active key in asoc. Then an use-after-free will be triggered when sending patckets, as found by syzbot:

  sctp_auth_shkey_hold+0x22/0xa0 net/sctp/auth.c:112
  sctp_set_owner_w net/sctp/socket.c:132 [inline]
  sctp_sendmsg_to_asoc+0xbd5/0x1a20 net/sctp/socket.c:1863
  sctp_sendmsg+0x1053/0x1d50 net/sctp/socket.c:2025
  inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
  sock_sendmsg_nosec net/socket.c:714 [inline]
  sock_sendmsg+0xcf/0x120 net/socket.c:734

This patch is to fix it by not replacing the sh_key when it returns errors from sctp_auth_asoc_init_active_key() in sctp_auth_set_key(). For sctp_auth_set_active_key(), old active_key_id will be set back to asoc->active_key_id when the same thing happens.

Fixes 58acd1009226 ("sctp: update active_key for asoc when old key is being replaced")
Reported-by [email protected]
---
 net/sctp/auth.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)
net/sctp/auth.c +14 -4
index 3b2d0bd616dd..6b97b734a16f 100644
@@ -869,12 +869,17 @@ int sctp_auth_set_key(struct sctp_endpoint *ep,
 	}
 
 	list_del_init(&shkey->key_list);
-	sctp_auth_shkey_release(shkey);
 	list_add(&cur_key->key_list, sh_keys);
 
-	if (asoc && asoc->active_key_id == auth_key->sca_keynumber)
-		sctp_auth_asoc_init_active_key(asoc, GFP_KERNEL);
+	if (asoc && asoc->active_key_id == auth_key->sca_keynumber &&
+	    sctp_auth_asoc_init_active_key(asoc, GFP_KERNEL)) {
+		list_del_init(&cur_key->key_list);
+		sctp_auth_shkey_release(cur_key);
+		list_add(&shkey->key_list, sh_keys);
+		return -ENOMEM;
+	}
 
+	sctp_auth_shkey_release(shkey);
 	return 0;
 }
 
@@ -908,8 +913,13 @@ int sctp_auth_set_active_key(struct sctp_endpoint *ep,
 		return -EINVAL;
 
 	if (asoc) {
+		__u16  active_key_id = asoc->active_key_id;
+
 		asoc->active_key_id = key_id;
-		sctp_auth_asoc_init_active_key(asoc, GFP_KERNEL);
+		if (sctp_auth_asoc_init_active_key(asoc, GFP_KERNEL)) {
+			asoc->active_key_id = active_key_id;
+			return -ENOMEM;
+		}
 	} else
 		ep->active_key_id = key_id;
 
Signature · 1 line
2.35.1
author maintainer
#65 lore raw

PATCH 65/255 bpftool: Fix a wrong type cast in btf_dumper_int

In reply to Greg Kroah-Hartman

From: Lam Thai <[email protected]>

[ Upstream commit 7184aef9c0f7a81db8fd18d183ee42481d89bf35 ]

When data points to a boolean value, casting it to int * is problematic and could lead to a wrong value being passed to jsonw_bool. Change the cast to bool * instead.

---
 tools/bpf/bpftool/btf_dumper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
tools/bpf/bpftool/btf_dumper.c +1 -1
index 397e5716ab6d..ebb73e447310 100644
@@ -251,7 +251,7 @@ static int btf_dumper_int(const struct btf_type *t, __u8 bit_offset,
 					     *(char *)data);
 		break;
 	case BTF_INT_BOOL:
-		jsonw_bool(jw, *(int *)data);
+		jsonw_bool(jw, *(bool *)data);
 		break;
 	default:
 		/* shouldn't happen */
Signature · 1 line
2.35.1
author maintainer
#120 lore raw

PATCH 107/255 ALSA: hda/hdmi: Dont skip notification handling during PM operation

In reply to Greg Kroah-Hartman

From: Takashi Iwai <[email protected]>

[ Upstream commit 5226c7b9784eee215e3914f440b3c2e1764f67a8 ]

The HDMI driver skips the notification handling from the graphics driver when the codec driver is being in the PM operation. This behavior was introduced by the commit eb399d3c99d8 ("ALSA: hda - Skip ELD notification during PM process"). This skip may cause a problem, as we may miss the ELD update when the connection/disconnection happens right at the runtime-PM operation of the audio codec.

Although this workaround was valid at that time, it's no longer true; the fix was required just because the ELD update procedure needed to wake up the audio codec, which had lead to a runtime-resume during a runtime-suspend. Meanwhile, the ELD update procedure doesn't need a codec wake up any longer since the commit 788d441a164c ("ALSA: hda - Use component ops for i915 HDMI/DP audio jack handling"); i.e. there is no much reason for skipping the notification.

Let's drop those checks for addressing the missing notification.

Fixes 788d441a164c ("ALSA: hda - Use component ops for i915 HDMI/DP audio jack handling")
---
 sound/pci/hda/patch_hdmi.c | 6 ------
 1 file changed, 6 deletions(-)
sound/pci/hda/patch_hdmi.c +0 -6
index 169e74299987..091a7fe85451 100644
@@ -2570,9 +2570,6 @@ static void generic_acomp_pin_eld_notify(void *audio_ptr, int port, int dev_id)
 	 */
 	if (codec->core.dev.power.power_state.event == PM_EVENT_SUSPEND)
 		return;
-	/* ditto during suspend/resume process itself */
-	if (snd_hdac_is_in_pm(&codec->core))
-		return;
 
 	check_presence_and_report(codec, pin_nid, dev_id);
 }
@@ -2775,9 +2772,6 @@ static void intel_pin_eld_notify(void *audio_ptr, int port, int pipe)
 	 */
 	if (codec->core.dev.power.power_state.event == PM_EVENT_SUSPEND)
 		return;
-	/* ditto during suspend/resume process itself */
-	if (snd_hdac_is_in_pm(&codec->core))
-		return;
 
 	snd_hdac_i915_set_bclk(&codec->bus->core);
 	check_presence_and_report(codec, pin_nid, dev_id);
Signature · 1 line
2.35.1
author maintainer
#143 lore raw

PATCH 130/255 HSI: omap_ssi_port: Fix dma_map_sg error check

In reply to Greg Kroah-Hartman

From: Jack Wang <[email protected]>

[ Upstream commit 551e325bbd3fb8b5a686ac1e6cf76e5641461cf2 ]

dma_map_sg return 0 on error, in case of error return -EIO to caller.

Cc Sebastian Reichel <[email protected]>
Cc [email protected] (open list)
Fixes b209e047bc74 ("HSI: Introduce OMAP SSI driver")
---
 drivers/hsi/controllers/omap_ssi_port.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
drivers/hsi/controllers/omap_ssi_port.c +4 -4
index a0cb5be246e1..b9495b720f1b 100644
@@ -230,10 +230,10 @@ static int ssi_start_dma(struct hsi_msg *msg, int lch)
 	if (msg->ttype == HSI_MSG_READ) {
 		err = dma_map_sg(&ssi->device, msg->sgt.sgl, msg->sgt.nents,
 							DMA_FROM_DEVICE);
-		if (err < 0) {
+		if (!err) {
 			dev_dbg(&ssi->device, "DMA map SG failed !\n");
 			pm_runtime_put_autosuspend(omap_port->pdev);
-			return err;
+			return -EIO;
 		}
 		csdp = SSI_DST_BURST_4x32_BIT | SSI_DST_MEMORY_PORT |
 			SSI_SRC_SINGLE_ACCESS0 | SSI_SRC_PERIPHERAL_PORT |
@@ -247,10 +247,10 @@ static int ssi_start_dma(struct hsi_msg *msg, int lch)
 	} else {
 		err = dma_map_sg(&ssi->device, msg->sgt.sgl, msg->sgt.nents,
 							DMA_TO_DEVICE);
-		if (err < 0) {
+		if (!err) {
 			dev_dbg(&ssi->device, "DMA map SG failed !\n");
 			pm_runtime_put_autosuspend(omap_port->pdev);
-			return err;
+			return -EIO;
 		}
 		csdp = SSI_SRC_BURST_4x32_BIT | SSI_SRC_MEMORY_PORT |
 			SSI_DST_SINGLE_ACCESS0 | SSI_DST_PERIPHERAL_PORT |
Signature · 1 line
2.35.1
author maintainer
#117 lore raw

PATCH 104/255 ASoC: wm8997: Fix PM disable depth imbalance in wm8997_probe

In reply to Greg Kroah-Hartman

From: Zhang Qilong <[email protected]>

[ Upstream commit 41a736ac20602f64773e80f0f5b32cde1830a44a ]

The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced according to context. We fix it by moving pm_runtime_enable to the endding of wm8997_probe

Fixes 40843aea5a9bd ("ASoC: wm8997: Initial CODEC driver")
---
 sound/soc/codecs/wm8997.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
sound/soc/codecs/wm8997.c +3 -3
index 229f2986cd96..07378714b013 100644
@@ -1156,9 +1156,6 @@ static int wm8997_probe(struct platform_device *pdev)
 		regmap_update_bits(arizona->regmap, wm8997_digital_vu[i],
 				   WM8997_DIG_VU, WM8997_DIG_VU);
 
-	pm_runtime_enable(&pdev->dev);
-	pm_runtime_idle(&pdev->dev);
-
 	arizona_init_common(arizona);
 
 	ret = arizona_init_vol_limit(arizona);
@@ -1177,6 +1174,9 @@ static int wm8997_probe(struct platform_device *pdev)
 		goto err_spk_irqs;
 	}
 
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_idle(&pdev->dev);
+
 	return ret;
 
 err_spk_irqs:
Signature · 1 line
2.35.1
author maintainer
#114 lore raw

PATCH 101/255 drm/msm/dpu: index dpu_kms->hw_vbif using vbif_idx

In reply to Greg Kroah-Hartman

From: Dmitry Baryshkov <[email protected]>

[ Upstream commit 7538f80ae0d98bf51eb89eee5344aec219902d42 ]

Remove loops over hw_vbif. Instead always VBIF's idx as an index in the array. This fixes an error in dpu_kms_hw_init(), where we fill dpu_kms->hw_vbif[i], but check for an error pointer at dpu_kms->hw_vbif[vbif_idx].

Fixes 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")

Patchwork: https://patchwork.freedesktop.org/patch/489569/

---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c  | 12 ++++------
 drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c | 29 +++++++++++-------------
 2 files changed, 18 insertions(+), 23 deletions(-)
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +5 -7
index c08c67338d73..a74f8ae1a894 100644
@@ -596,12 +596,10 @@ static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms)
 	_dpu_kms_mmu_destroy(dpu_kms);
 
 	if (dpu_kms->catalog) {
-		for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
-			u32 vbif_idx = dpu_kms->catalog->vbif[i].id;
-
-			if ((vbif_idx < VBIF_MAX) && dpu_kms->hw_vbif[vbif_idx]) {
-				dpu_hw_vbif_destroy(dpu_kms->hw_vbif[vbif_idx]);
-				dpu_kms->hw_vbif[vbif_idx] = NULL;
+		for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
+			if (dpu_kms->hw_vbif[i]) {
+				dpu_hw_vbif_destroy(dpu_kms->hw_vbif[i]);
+				dpu_kms->hw_vbif[i] = NULL;
 			}
 		}
 	}
@@ -899,7 +897,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
 	for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
 		u32 vbif_idx = dpu_kms->catalog->vbif[i].id;
 
-		dpu_kms->hw_vbif[i] = dpu_hw_vbif_init(vbif_idx,
+		dpu_kms->hw_vbif[vbif_idx] = dpu_hw_vbif_init(vbif_idx,
 				dpu_kms->vbif[vbif_idx], dpu_kms->catalog);
 		if (IS_ERR_OR_NULL(dpu_kms->hw_vbif[vbif_idx])) {
 			rc = PTR_ERR(dpu_kms->hw_vbif[vbif_idx]);
drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c +13 -16
index 8d24b79fd400..5e6bb2f306be 100644
@@ -11,6 +11,14 @@
 #include "dpu_hw_vbif.h"
 #include "dpu_trace.h"
 
+static struct dpu_hw_vbif *dpu_get_vbif(struct dpu_kms *dpu_kms, enum dpu_vbif vbif_idx)
+{
+	if (vbif_idx < ARRAY_SIZE(dpu_kms->hw_vbif))
+		return dpu_kms->hw_vbif[vbif_idx];
+
+	return NULL;
+}
+
 /**
  * _dpu_vbif_wait_for_xin_halt - wait for the xin to halt
  * @vbif:	Pointer to hardware vbif driver
@@ -148,11 +156,11 @@ static u32 _dpu_vbif_get_ot_limit(struct dpu_hw_vbif *vbif,
 void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms,
 		struct dpu_vbif_set_ot_params *params)
 {
-	struct dpu_hw_vbif *vbif = NULL;
+	struct dpu_hw_vbif *vbif;
 	struct dpu_hw_mdp *mdp;
 	bool forced_on = false;
 	u32 ot_lim;
-	int ret, i;
+	int ret;
 
 	if (!dpu_kms) {
 		DPU_ERROR("invalid arguments\n");
@@ -160,12 +168,7 @@ void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms,
 	}
 	mdp = dpu_kms->hw_mdp;
 
-	for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
-		if (dpu_kms->hw_vbif[i] &&
-				dpu_kms->hw_vbif[i]->idx == params->vbif_idx)
-			vbif = dpu_kms->hw_vbif[i];
-	}
-
+	vbif = dpu_get_vbif(dpu_kms, params->vbif_idx);
 	if (!vbif || !mdp) {
 		DPU_DEBUG("invalid arguments vbif %d mdp %d\n",
 				vbif != 0, mdp != 0);
@@ -208,7 +211,7 @@ void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms,
 void dpu_vbif_set_qos_remap(struct dpu_kms *dpu_kms,
 		struct dpu_vbif_set_qos_params *params)
 {
-	struct dpu_hw_vbif *vbif = NULL;
+	struct dpu_hw_vbif *vbif;
 	struct dpu_hw_mdp *mdp;
 	bool forced_on = false;
 	const struct dpu_vbif_qos_tbl *qos_tbl;
@@ -220,13 +223,7 @@ void dpu_vbif_set_qos_remap(struct dpu_kms *dpu_kms,
 	}
 	mdp = dpu_kms->hw_mdp;
 
-	for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
-		if (dpu_kms->hw_vbif[i] &&
-				dpu_kms->hw_vbif[i]->idx == params->vbif_idx) {
-			vbif = dpu_kms->hw_vbif[i];
-			break;
-		}
-	}
+	vbif = dpu_get_vbif(dpu_kms, params->vbif_idx);
 
 	if (!vbif || !vbif->cap) {
 		DPU_ERROR("invalid vbif %d\n", params->vbif_idx);
Signature · 1 line
2.35.1
author maintainer
#130 lore raw

PATCH 117/255 ARM: dts: exynos: fix polarity of VBUS GPIO of Origen

In reply to Greg Kroah-Hartman

From: Dmitry Torokhov <[email protected]>

[ Upstream commit a08137bd1e0a7ce951dce9ce4a83e39d379b6e1b ]

EHCI Oxynos (drivers/usb/host/ehci-exynos.c) drives VBUS GPIO high when trying to power up the bus, therefore the GPIO in DTS must be marked as "active high". This will be important when EHCI driver is converted to gpiod API that respects declared polarities.

Fixes 4e8991def565 ("ARM: dts: exynos: Enable AX88760 USB hub on Origen board")
---
 arch/arm/boot/dts/exynos4412-origen.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
arch/arm/boot/dts/exynos4412-origen.dts +1 -1
index ecd14b283a6b..c6678c120cbd 100644
@@ -86,7 +86,7 @@
 };
 
 &ehci {
-	samsung,vbus-gpio = <&gpx3 5 1>;
+	samsung,vbus-gpio = <&gpx3 5 GPIO_ACTIVE_HIGH>;
 	status = "okay";
 	phys = <&exynos_usbphy 2>, <&exynos_usbphy 3>;
 	phy-names = "hsic0", "hsic1";
Signature · 1 line
2.35.1
author maintainer
#132 lore raw

PATCH 119/255 iio: adc: at91-sama5d2_adc: check return status for pressure and touch

In reply to Greg Kroah-Hartman

From: Claudiu Beznea <[email protected]>

[ Upstream commit d84ace944a3b24529798dbae1340dea098473155 ]

Check return status of at91_adc_read_position() and at91_adc_read_pressure() in at91_adc_read_info_raw().

Fixes 6794e23fa3fe ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution")
---
 drivers/iio/adc/at91-sama5d2_adc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
drivers/iio/adc/at91-sama5d2_adc.c +6 -2
index 090cc1e8b4ea..20ef858d65c7 100644
@@ -1323,8 +1323,10 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev,
 		*val = tmp_val;
 		mutex_unlock(&st->lock);
 		iio_device_release_direct_mode(indio_dev);
+		if (ret > 0)
+			ret = at91_adc_adjust_val_osr(st, val);
 
-		return at91_adc_adjust_val_osr(st, val);
+		return ret;
 	}
 	if (chan->type == IIO_PRESSURE) {
 		ret = iio_device_claim_direct_mode(indio_dev);
@@ -1337,8 +1339,10 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev,
 		*val = tmp_val;
 		mutex_unlock(&st->lock);
 		iio_device_release_direct_mode(indio_dev);
+		if (ret > 0)
+			ret = at91_adc_adjust_val_osr(st, val);
 
-		return at91_adc_adjust_val_osr(st, val);
+		return ret;
 	}
 
 	/* in this case we have a voltage channel */
Signature · 1 line
2.35.1
author maintainer
#102 lore raw

PATCH 89/255 drm/mipi-dsi: Detach devices when removing the host

In reply to Greg Kroah-Hartman

From: Maxime Ripard <[email protected]>

[ Upstream commit 668a8f17b5290d04ef7343636a5588a0692731a1 ]

Whenever the MIPI-DSI host is unregistered, the code of mipi_dsi_host_unregister() loops over every device currently found on that bus and will unregister it.

However, it doesn't detach it from the bus first, which leads to all kind of resource leaks if the host wants to perform some clean up whenever a device is detached.

---
 drivers/gpu/drm/drm_mipi_dsi.c | 1 +
 1 file changed, 1 insertion(+)
drivers/gpu/drm/drm_mipi_dsi.c +1 -0
index b99f96dcc6f1..bb7f72ade628 100644
@@ -300,6 +300,7 @@ static int mipi_dsi_remove_device_fn(struct device *dev, void *priv)
 {
 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
 
+	mipi_dsi_detach(dsi);
 	mipi_dsi_device_unregister(dsi);
 
 	return 0;
Signature · 1 line
2.35.1
author maintainer
#62 lore raw

PATCH 62/255 nfsd: Fix a memory leak in an error handling path

In reply to Greg Kroah-Hartman

From: Christophe JAILLET <[email protected]>

[ Upstream commit fd1ef88049de09bc70d60b549992524cfc0e66ff ]

If this memdup_user() call fails, the memory allocated in a previous call a few lines above should be freed. Otherwise it leaks.

Fixes 6ee95d1c8991 ("nfsd: add support for upcall version 2")
---
 fs/nfsd/nfs4recover.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
fs/nfsd/nfs4recover.c +3 -1
index 7d408957ed62..14463e107918 100644
@@ -825,8 +825,10 @@ __cld_pipe_inprogress_downcall(const struct cld_msg_v2 __user *cmsg,
 				princhash.data = memdup_user(
 						&ci->cc_princhash.cp_data,
 						princhashlen);
-				if (IS_ERR_OR_NULL(princhash.data))
+				if (IS_ERR_OR_NULL(princhash.data)) {
+					kfree(name.data);
 					return -EFAULT;
+				}
 				princhash.len = princhashlen;
 			} else
 				princhash.len = 0;
Signature · 1 line
2.35.1
author maintainer
#73 lore raw

PATCH 73/255 net: fs_enet: Fix wrong check in do_pd_setup

In reply to Greg Kroah-Hartman

From: Zheng Yongjun <[email protected]>

[ Upstream commit ec3f06b542a960806a81345042e4eee3f8c5dec4 ]

Should check of_iomap return value 'fep->fec.fecp' instead of 'fep->fcc.fccp'

Fixes 976de6a8c304 ("fs_enet: Be an of_platform device when CONFIG_PPC_CPM_NEW_BINDING is set.")
---
 drivers/net/ethernet/freescale/fs_enet/mac-fec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/net/ethernet/freescale/fs_enet/mac-fec.c +1 -1
index 99fe2c210d0f..61f4b6e50d29 100644
@@ -98,7 +98,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 		return -EINVAL;
 
 	fep->fec.fecp = of_iomap(ofdev->dev.of_node, 0);
-	if (!fep->fcc.fccp)
+	if (!fep->fec.fecp)
 		return -EINVAL;
 
 	return 0;
Signature · 1 line
2.35.1
author maintainer
#103 lore raw

PATCH 90/255 platform/chrome: fix double-free in chromeos_laptop_prepare()

In reply to Greg Kroah-Hartman

From: Rustam Subkhankulov <[email protected]>

[ Upstream commit 6ad4194d6a1e1d11b285989cd648ef695b4a93c0 ]

If chromeos_laptop_prepare_i2c_peripherals() fails after allocating memory for 'cros_laptop->i2c_peripherals', this memory is freed at 'err_out' label and nonzero value is returned. Then chromeos_laptop_destroy() is called, resulting in double-free error.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes 5020cd29d8bf ("platform/chrome: chromeos_laptop - supply properties for ACPI devices")
---
 drivers/platform/chrome/chromeos_laptop.c | 24 ++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)
drivers/platform/chrome/chromeos_laptop.c +13 -11
index 8723bcf10c93..954953133d56 100644
@@ -716,6 +716,7 @@ static int __init
 chromeos_laptop_prepare_i2c_peripherals(struct chromeos_laptop *cros_laptop,
 					const struct chromeos_laptop *src)
 {
+	struct i2c_peripheral *i2c_peripherals;
 	struct i2c_peripheral *i2c_dev;
 	struct i2c_board_info *info;
 	int i;
@@ -724,17 +725,15 @@ chromeos_laptop_prepare_i2c_peripherals(struct chromeos_laptop *cros_laptop,
 	if (!src->num_i2c_peripherals)
 		return 0;
 
-	cros_laptop->i2c_peripherals = kmemdup(src->i2c_peripherals,
-					       src->num_i2c_peripherals *
-						sizeof(*src->i2c_peripherals),
-					       GFP_KERNEL);
-	if (!cros_laptop->i2c_peripherals)
+	i2c_peripherals = kmemdup(src->i2c_peripherals,
+					      src->num_i2c_peripherals *
+					  sizeof(*src->i2c_peripherals),
+					  GFP_KERNEL);
+	if (!i2c_peripherals)
 		return -ENOMEM;
 
-	cros_laptop->num_i2c_peripherals = src->num_i2c_peripherals;
-
-	for (i = 0; i < cros_laptop->num_i2c_peripherals; i++) {
-		i2c_dev = &cros_laptop->i2c_peripherals[i];
+	for (i = 0; i < src->num_i2c_peripherals; i++) {
+		i2c_dev = &i2c_peripherals[i];
 		info = &i2c_dev->board_info;
 
 		error = chromeos_laptop_setup_irq(i2c_dev);
@@ -752,16 +751,19 @@ chromeos_laptop_prepare_i2c_peripherals(struct chromeos_laptop *cros_laptop,
 		}
 	}
 
+	cros_laptop->i2c_peripherals = i2c_peripherals;
+	cros_laptop->num_i2c_peripherals = src->num_i2c_peripherals;
+
 	return 0;
 
 err_out:
 	while (--i >= 0) {
-		i2c_dev = &cros_laptop->i2c_peripherals[i];
+		i2c_dev = &i2c_peripherals[i];
 		info = &i2c_dev->board_info;
 		if (info->properties)
 			property_entries_free(info->properties);
 	}
-	kfree(cros_laptop->i2c_peripherals);
+	kfree(i2c_peripherals);
 	return error;
 }
 
Signature · 1 line
2.35.1
author maintainer
#128 lore raw

PATCH 115/255 ARM: dts: exynos: correct s5k6a3 reset polarity on Midas family

In reply to Greg Kroah-Hartman

From: Dmitry Torokhov <[email protected]>

[ Upstream commit 3ba2d4bb9592bf7a6a3fe3dbe711ecfc3d004bab ]

According to s5k6a3 driver code, the reset line for the chip appears to be active low. This also matches the typical polarity of reset lines in general. Let's fix it up as having correct polarity in DTS is important when the driver will be switched over to gpiod API.

---
 arch/arm/boot/dts/exynos4412-midas.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
arch/arm/boot/dts/exynos4412-midas.dtsi +1 -1
index fedb21377c66..3538739c7901 100644
@@ -534,7 +534,7 @@
 		clocks = <&camera 1>;
 		clock-names = "extclk";
 		samsung,camclk-out = <1>;
-		gpios = <&gpm1 6 GPIO_ACTIVE_HIGH>;
+		gpios = <&gpm1 6 GPIO_ACTIVE_LOW>;
 
 		port {
 			is_s5k6a3_ep: endpoint {
Signature · 1 line
2.35.1
author maintainer
#123 lore raw

PATCH 110/255 soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit af8f6f39b8afd772fda4f8e61823ef8c021bf382 ]

There are two refcount leak bugs in qcom_smsm_probe():

(1) The 'local_node' is escaped out from for_each_child_of_node() as the break of iteration, we should call of_node_put() for it in error path or when it is not used anymore.
(2) The 'node' is escaped out from for_each_available_child_of_node() as the 'goto', we should call of_node_put() for it in goto target.

Fixes c97c4090ff72 ("soc: qcom: smsm: Add driver for Qualcomm SMSM")
---
 drivers/soc/qcom/smsm.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)
drivers/soc/qcom/smsm.c +13 -7
index 6564f15c5319..acba67dfbc85 100644
@@ -511,7 +511,7 @@ static int qcom_smsm_probe(struct platform_device *pdev)
 	for (id = 0; id < smsm->num_hosts; id++) {
 		ret = smsm_parse_ipc(smsm, id);
 		if (ret < 0)
-			return ret;
+			goto out_put;
 	}
 
 	/* Acquire the main SMSM state vector */
@@ -519,13 +519,14 @@ static int qcom_smsm_probe(struct platform_device *pdev)
 			      smsm->num_entries * sizeof(u32));
 	if (ret < 0 && ret != -EEXIST) {
 		dev_err(&pdev->dev, "unable to allocate shared state entry\n");
-		return ret;
+		goto out_put;
 	}
 
 	states = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_SMSM_SHARED_STATE, NULL);
 	if (IS_ERR(states)) {
 		dev_err(&pdev->dev, "Unable to acquire shared state entry\n");
-		return PTR_ERR(states);
+		ret = PTR_ERR(states);
+		goto out_put;
 	}
 
 	/* Acquire the list of interrupt mask vectors */
@@ -533,13 +534,14 @@ static int qcom_smsm_probe(struct platform_device *pdev)
 	ret = qcom_smem_alloc(QCOM_SMEM_HOST_ANY, SMEM_SMSM_CPU_INTR_MASK, size);
 	if (ret < 0 && ret != -EEXIST) {
 		dev_err(&pdev->dev, "unable to allocate smsm interrupt mask\n");
-		return ret;
+		goto out_put;
 	}
 
 	intr_mask = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_SMSM_CPU_INTR_MASK, NULL);
 	if (IS_ERR(intr_mask)) {
 		dev_err(&pdev->dev, "unable to acquire shared memory interrupt mask\n");
-		return PTR_ERR(intr_mask);
+		ret = PTR_ERR(intr_mask);
+		goto out_put;
 	}
 
 	/* Setup the reference to the local state bits */
@@ -550,7 +552,8 @@ static int qcom_smsm_probe(struct platform_device *pdev)
 	smsm->state = qcom_smem_state_register(local_node, &smsm_state_ops, smsm);
 	if (IS_ERR(smsm->state)) {
 		dev_err(smsm->dev, "failed to register qcom_smem_state\n");
-		return PTR_ERR(smsm->state);
+		ret = PTR_ERR(smsm->state);
+		goto out_put;
 	}
 
 	/* Register handlers for remote processor entries of interest. */
@@ -580,16 +583,19 @@ static int qcom_smsm_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, smsm);
+	of_node_put(local_node);
 
 	return 0;
 
 unwind_interfaces:
+	of_node_put(node);
 	for (id = 0; id < smsm->num_entries; id++)
 		if (smsm->entries[id].domain)
 			irq_domain_remove(smsm->entries[id].domain);
 
 	qcom_smem_state_unregister(smsm->state);
-
+out_put:
+	of_node_put(local_node);
 	return ret;
 }
 
Signature · 1 line
2.35.1
author maintainer
#113 lore raw

PATCH 100/255 ASoC: eureka-tlv320: Hold reference returned from of_find_xxx API

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit bfb735a3ceff0bab6473bac275da96f9b2a06dec ]

In eukrea_tlv320_probe(), we need to hold the reference returned from of_find_compatible_node() which has increased the refcount and then call of_node_put() with it when done.

Fixes 66f232908de2 ("ASoC: eukrea-tlv320: Add DT support.")
---
 sound/soc/fsl/eukrea-tlv320.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
sound/soc/fsl/eukrea-tlv320.c +5 -3
index 6f3b768489f6..bf3d3f0aa858 100644
@@ -86,7 +86,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
 	int ret;
 	int int_port = 0, ext_port;
 	struct device_node *np = pdev->dev.of_node;
-	struct device_node *ssi_np = NULL, *codec_np = NULL;
+	struct device_node *ssi_np = NULL, *codec_np = NULL, *tmp_np = NULL;
 
 	eukrea_tlv320.dev = &pdev->dev;
 	if (np) {
@@ -143,7 +143,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
 	}
 
 	if (machine_is_eukrea_cpuimx27() ||
-	    of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
+	    (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux"))) {
 		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
 			IMX_AUDMUX_V1_PCR_SYN |
 			IMX_AUDMUX_V1_PCR_TFSDIR |
@@ -158,10 +158,11 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
 			IMX_AUDMUX_V1_PCR_SYN |
 			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
 		);
+		of_node_put(tmp_np);
 	} else if (machine_is_eukrea_cpuimx25sd() ||
 		   machine_is_eukrea_cpuimx35sd() ||
 		   machine_is_eukrea_cpuimx51sd() ||
-		   of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
+		   (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux"))) {
 		if (!np)
 			ext_port = machine_is_eukrea_cpuimx25sd() ?
 				4 : 3;
@@ -178,6 +179,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
 			IMX_AUDMUX_V2_PTCR_SYN,
 			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
 		);
+		of_node_put(tmp_np);
 	} else {
 		if (np) {
 			/* The eukrea,asoc-tlv320 driver was explicitly
Signature · 1 line
2.35.1
author maintainer
#127 lore raw

PATCH 114/255 ARM: dts: kirkwood: lsxl: remove first ethernet port

In reply to Greg Kroah-Hartman

From: Michael Walle <[email protected]>

[ Upstream commit 2d528eda7c96ce5c70f895854ecd5684bd5d80b9 ]

Both the Linkstation LS-CHLv2 and the LS-XHL have only one ethernet port. This has always been wrong, i.e. the board code used to set up both ports, but the driver will play nice and return -ENODEV if the assiciated PHY is not found. Nevertheless, it is wrong. Remove it.

Fixes 876e23333511 ("ARM: kirkwood: add gigabit ethernet and mvmdio device tree nodes")
---
 arch/arm/boot/dts/kirkwood-lsxl.dtsi | 11 -----------
 1 file changed, 11 deletions(-)
arch/arm/boot/dts/kirkwood-lsxl.dtsi +0 -11
index 321a40a98ed2..88b70ba1c8fe 100644
@@ -218,22 +218,11 @@
 &mdio {
 	status = "okay";
 
-	ethphy0: ethernet-phy@0 {
-		reg = <0>;
-	};
-
 	ethphy1: ethernet-phy@8 {
 		reg = <8>;
 	};
 };
 
-&eth0 {
-	status = "okay";
-	ethernet0-port@0 {
-		phy-handle = <&ethphy0>;
-	};
-};
-
 &eth1 {
 	status = "okay";
 	ethernet1-port@0 {
Signature · 1 line
2.35.1
author maintainer
#134 lore raw

PATCH 121/255 iio: inkern: only release the device node when done with it

In reply to Greg Kroah-Hartman

From: Nuno Sá <[email protected]>

[ Upstream commit 79c3e84874c7d14f04ad58313b64955a0d2e9437 ]

'of_node_put()' can potentially release the memory pointed to by 'iiospec.np' which would leave us with an invalid pointer (and we would still pass it in 'of_xlate()'). Note that it is not guaranteed for the of_node lifespan to be attached to the device (to which is attached) lifespan so that there is (even though very unlikely) the possibility for the node to be freed while the device is still around. Thus, as there are indeed some of_xlate users which do access the node, a race is indeed possible.

As such, we can only release the node after we are done with it.

---
 drivers/iio/inkern.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/iio/inkern.c +4 -2
index ca0fe902a7db..d00f3045557c 100644
@@ -136,9 +136,10 @@ static int __of_iio_channel_get(struct iio_channel *channel,
 
 	idev = bus_find_device(&iio_bus_type, NULL, iiospec.np,
 			       iio_dev_node_match);
-	of_node_put(iiospec.np);
-	if (idev == NULL)
+	if (idev == NULL) {
+		of_node_put(iiospec.np);
 		return -EPROBE_DEFER;
+	}
 
 	indio_dev = dev_to_iio_dev(idev);
 	channel->indio_dev = indio_dev;
@@ -146,6 +147,7 @@ static int __of_iio_channel_get(struct iio_channel *channel,
 		index = indio_dev->info->of_xlate(indio_dev, &iiospec);
 	else
 		index = __of_iio_simple_xlate(indio_dev, &iiospec);
+	of_node_put(iiospec.np);
 	if (index < 0)
 		goto err_put;
 	channel->channel = &indio_dev->channels[index];
Signature · 1 line
2.35.1
author maintainer
#78 lore raw

PATCH 78/255 spi: s3c64xx: Fix large transfers with DMA

In reply to Greg Kroah-Hartman

From: Vincent Whitchurch <[email protected]>

[ Upstream commit 1224e29572f655facfcd850cf0f0a4784f36a903 ]

The COUNT_VALUE in the PACKET_CNT register is 16-bit so the maximum value is 65535. Asking the driver to transfer a larger size currently leads to the DMA transfer timing out. Implement ->max_transfer_size() and have the core split the transfer as needed.

Fixes 230d42d422e7 ("spi: Add s3c64xx SPI Controller driver")
---
 drivers/spi/spi-s3c64xx.c | 9 +++++++++
 1 file changed, 9 insertions(+)
drivers/spi/spi-s3c64xx.c +9 -0
index 1d948fee1a03..d9420561236c 100644
@@ -84,6 +84,7 @@
 #define S3C64XX_SPI_ST_TX_FIFORDY		(1<<0)
 
 #define S3C64XX_SPI_PACKET_CNT_EN		(1<<16)
+#define S3C64XX_SPI_PACKET_CNT_MASK		GENMASK(15, 0)
 
 #define S3C64XX_SPI_PND_TX_UNDERRUN_CLR		(1<<4)
 #define S3C64XX_SPI_PND_TX_OVERRUN_CLR		(1<<3)
@@ -654,6 +655,13 @@ static int s3c64xx_spi_prepare_message(struct spi_master *master,
 	return 0;
 }
 
+static size_t s3c64xx_spi_max_transfer_size(struct spi_device *spi)
+{
+	struct spi_controller *ctlr = spi->controller;
+
+	return ctlr->can_dma ? S3C64XX_SPI_PACKET_CNT_MASK : SIZE_MAX;
+}
+
 static int s3c64xx_spi_transfer_one(struct spi_master *master,
 				    struct spi_device *spi,
 				    struct spi_transfer *xfer)
@@ -1118,6 +1126,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 	master->prepare_transfer_hardware = s3c64xx_spi_prepare_transfer;
 	master->prepare_message = s3c64xx_spi_prepare_message;
 	master->transfer_one = s3c64xx_spi_transfer_one;
+	master->max_transfer_size = s3c64xx_spi_max_transfer_size;
 	master->num_chipselect = sci->num_cs;
 	master->dma_alignment = 8;
 	master->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(16) |
Signature · 1 line
2.35.1
author maintainer
#83 lore raw

PATCH 83/255 net: rds: dont hold sock lock when cancelling work from rds_tcp_reset_callbacks()

In reply to Greg Kroah-Hartman

From: Tetsuo Handa <[email protected]>

[ Upstream commit a91b750fd6629354460282bbf5146c01b05c4859 ]

syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section protected by lock_sock() without realizing that rds_send_xmit() might call lock_sock().

We don't need to protect cancel_delayed_work_sync() using lock_sock(), for even if rds_{send,recv}_worker() re-queued this work while __flush_work()
from cancel_delayed_work_sync() was waiting for this work to complete,
retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP bit.

Fixes ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()")
---
 net/rds/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
net/rds/tcp.c +1 -1
index d55d81b01d37..bfb8d4d6a994 100644
@@ -176,10 +176,10 @@ void rds_tcp_reset_callbacks(struct socket *sock,
 	 */
 	atomic_set(&cp->cp_state, RDS_CONN_RESETTING);
 	wait_event(cp->cp_waitq, !test_bit(RDS_IN_XMIT, &cp->cp_flags));
-	lock_sock(osock->sk);
 	/* reset receive side state for rds_tcp_data_recv() for osock  */
 	cancel_delayed_work_sync(&cp->cp_send_w);
 	cancel_delayed_work_sync(&cp->cp_recv_w);
+	lock_sock(osock->sk);
 	if (tc->t_tinc) {
 		rds_inc_put(&tc->t_tinc->ti_inc);
 		tc->t_tinc = NULL;
Signature · 1 line
2.35.1
author maintainer
#104 lore raw

PATCH 91/255 platform/chrome: fix memory corruption in ioctl

In reply to Greg Kroah-Hartman

From: Dan Carpenter <[email protected]>

[ Upstream commit 8a07b45fd3c2dda24fad43639be5335a4595196a ]

If "s_mem.bytes" is larger than the buffer size it leads to memory corruption.

Fixes eda2e30c6684 ("mfd / platform: cros_ec: Miscellaneous character device to talk with the EC")
---
 drivers/platform/chrome/cros_ec_chardev.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/platform/chrome/cros_ec_chardev.c +3 -0
index 74ded441bb50..1f5f4a46ab74 100644
@@ -328,6 +328,9 @@ static long cros_ec_chardev_ioctl_readmem(struct cros_ec_dev *ec,
 	if (copy_from_user(&s_mem, arg, sizeof(s_mem)))
 		return -EFAULT;
 
+	if (s_mem.bytes > sizeof(s_mem.buffer))
+		return -EINVAL;
+
 	num = ec_dev->cmd_readmem(ec_dev, s_mem.offset, s_mem.bytes,
 				  s_mem.buffer);
 	if (num <= 0)
Signature · 1 line
2.35.1
author maintainer
#147 lore raw

PATCH 134/255 RDMA/rxe: Fix "kernel NULL pointer dereference" error

In reply to Greg Kroah-Hartman

From: Zhu Yanjun <[email protected]>

[ Upstream commit a625ca30eff806395175ebad3ac1399014bdb280 ]

When rxe_queue_init in the function rxe_qp_init_req fails, both qp->req.task.func and qp->req.task.arg are not initialized.

Because of creation of qp fails, the function rxe_create_qp will call rxe_qp_do_cleanup to handle allocated resource.

Before calling __rxe_do_task, both qp->req.task.func and qp->req.task.arg should be checked.

---
 drivers/infiniband/sw/rxe/rxe_qp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/infiniband/sw/rxe/rxe_qp.c +3 -1
index 57f111fe5443..be3eff792864 100644
@@ -805,7 +805,9 @@ void rxe_qp_destroy(struct rxe_qp *qp)
 	rxe_cleanup_task(&qp->comp.task);
 
 	/* flush out any receive wr's or pending requests */
-	__rxe_do_task(&qp->req.task);
+	if (qp->req.task.func)
+		__rxe_do_task(&qp->req.task);
+
 	if (qp->sq.queue) {
 		__rxe_do_task(&qp->comp.task);
 		__rxe_do_task(&qp->req.task);
Signature · 1 line
2.35.1
author maintainer
#71 lore raw

PATCH 71/255 bpf: btf: fix truncated last_member_type_id in btf_struct_resolve

In reply to Greg Kroah-Hartman

From: Lorenz Bauer <[email protected]>

[ Upstream commit a37a32583e282d8d815e22add29bc1e91e19951a ]

When trying to finish resolving a struct member, btf_struct_resolve saves the member type id in a u16 temporary variable. This truncates the 32 bit type id value if it exceeds UINT16_MAX.

As a result, structs that have members with type ids > UINT16_MAX and which need resolution will fail with a message like this:

[67414] STRUCT ff_device size=120 vlen=12
effect_owners type_id=67434 bits_offset=960 Member exceeds struct_size

Fix this by changing the type of last_member_type_id to u32.

---
 kernel/bpf/btf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
kernel/bpf/btf.c +1 -1
index b03087f110eb..a28bbec8c59f 100644
@@ -2148,7 +2148,7 @@ static int btf_struct_resolve(struct btf_verifier_env *env,
 	if (v->next_member) {
 		const struct btf_type *last_member_type;
 		const struct btf_member *last_member;
-		u16 last_member_type_id;
+		u32 last_member_type_id;
 
 		last_member = btf_type_member(v->t) + v->next_member - 1;
 		last_member_type_id = last_member->type;
Signature · 1 line
2.35.1
author maintainer
#100 lore raw

PATCH 87/255 net: mvpp2: fix mvpp2 debugfs leak

In reply to Greg Kroah-Hartman

From: Russell King (Oracle) <[email protected]>

[ Upstream commit 0152dfee235e87660f52a117fc9f70dc55956bb4 ]

When mvpp2 is unloaded, the driver specific debugfs directory is not removed, which technically leads to a memory leak. However, this directory is only created when the first device is probed, so the hardware is present. Removing the module is only something a developer would to when e.g. testing out changes, so the module would be reloaded. So this memory leak is minor.

The original attempt in commit fe2c9c61f668 ("net: mvpp2: debugfs: fix memory leak when using debugfs_lookup()") that was labelled as a memory leak fix was not, it fixed a refcount leak, but in doing so created a problem when the module is reloaded - the directory already exists, but mvpp2_root is NULL, so we lose all debugfs entries. This fix has been reverted.

This is the alternative fix, where we remove the offending directory whenever the driver is unloaded.

---
 drivers/net/ethernet/marvell/mvpp2/mvpp2.h         |  1 +
 drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c | 10 ++++++++--
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c    | 13 ++++++++++++-
 3 files changed, 21 insertions(+), 3 deletions(-)
drivers/net/ethernet/marvell/mvpp2/mvpp2.h +1 -0
index 543a310ec102..cf45b9210c15 100644
@@ -1202,5 +1202,6 @@ u32 mvpp2_read(struct mvpp2 *priv, u32 offset);
 void mvpp2_dbgfs_init(struct mvpp2 *priv, const char *name);
 
 void mvpp2_dbgfs_cleanup(struct mvpp2 *priv);
+void mvpp2_dbgfs_exit(void);
 
 #endif
drivers/net/ethernet/marvell/mvpp2/mvpp2_debugfs.c +8 -2
index 4a3baa7e0142..75e83ea2a926 100644
@@ -691,6 +691,13 @@ static int mvpp2_dbgfs_port_init(struct dentry *parent,
 	return 0;
 }
 
+static struct dentry *mvpp2_root;
+
+void mvpp2_dbgfs_exit(void)
+{
+	debugfs_remove(mvpp2_root);
+}
+
 void mvpp2_dbgfs_cleanup(struct mvpp2 *priv)
 {
 	debugfs_remove_recursive(priv->dbgfs_dir);
@@ -700,10 +707,9 @@ void mvpp2_dbgfs_cleanup(struct mvpp2 *priv)
 
 void mvpp2_dbgfs_init(struct mvpp2 *priv, const char *name)
 {
-	struct dentry *mvpp2_dir, *mvpp2_root;
+	struct dentry *mvpp2_dir;
 	int ret, i;
 
-	mvpp2_root = debugfs_lookup(MVPP2_DRIVER_NAME, NULL);
 	if (!mvpp2_root)
 		mvpp2_root = debugfs_create_dir(MVPP2_DRIVER_NAME, NULL);
 
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +12 -1
index d700f1b5a4bf..31dde6fbdbdc 100644
@@ -6004,7 +6004,18 @@ static struct platform_driver mvpp2_driver = {
 	},
 };
 
-module_platform_driver(mvpp2_driver);
+static int __init mvpp2_driver_init(void)
+{
+	return platform_driver_register(&mvpp2_driver);
+}
+module_init(mvpp2_driver_init);
+
+static void __exit mvpp2_driver_exit(void)
+{
+	platform_driver_unregister(&mvpp2_driver);
+	mvpp2_dbgfs_exit();
+}
+module_exit(mvpp2_driver_exit);
 
 MODULE_DESCRIPTION("Marvell PPv2 Ethernet Driver - www.marvell.com");
 MODULE_AUTHOR("Marcin Wojtas <[email protected]>");
Signature · 1 line
2.35.1
author maintainer
#111 lore raw

PATCH 98/255 drm/omap: dss: Fix refcount leak bugs

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit 8b42057e62120813ebe9274f508fa785b7cab33a ]

In dss_init_ports() and __dss_uninit_ports(), we should call of_node_put() for the reference returned by of_graph_get_port_by_id() in fail path or when it is not used anymore.

Fixes 09bffa6e5192 ("drm: omap: use common OF graph helpers")
---
 drivers/gpu/drm/omapdrm/dss/dss.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/gpu/drm/omapdrm/dss/dss.c +3 -0
index ac93dae2a9c8..7f1d0a9afafb 100644
@@ -1173,6 +1173,7 @@ static void __dss_uninit_ports(struct dss_device *dss, unsigned int num_ports)
 		default:
 			break;
 		}
+		of_node_put(port);
 	}
 }
 
@@ -1205,11 +1206,13 @@ static int dss_init_ports(struct dss_device *dss)
 		default:
 			break;
 		}
+		of_node_put(port);
 	}
 
 	return 0;
 
 error:
+	of_node_put(port);
 	__dss_uninit_ports(dss, i);
 	return r;
 }
Signature · 1 line
2.35.1
author maintainer
#124 lore raw

PATCH 111/255 soc: qcom: smem_state: Add refcounting for the state->of_node

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit 90681f53b9381c23ff7762a3b13826d620c272de ]

In qcom_smem_state_register() and qcom_smem_state_release(), we should better use of_node_get() and of_node_put() for the reference creation and destruction of 'device_node'.

Fixes 9460ae2ff308 ("soc: qcom: Introduce common SMEM state machine code")
---
 drivers/soc/qcom/smem_state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/soc/qcom/smem_state.c +2 -1
index d2b558438deb..41e929407196 100644
@@ -136,6 +136,7 @@ static void qcom_smem_state_release(struct kref *ref)
 	struct qcom_smem_state *state = container_of(ref, struct qcom_smem_state, refcount);
 
 	list_del(&state->list);
+	of_node_put(state->of_node);
 	kfree(state);
 }
 
@@ -169,7 +170,7 @@ struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node,
 
 	kref_init(&state->refcount);
 
-	state->of_node = of_node;
+	state->of_node = of_node_get(of_node);
 	state->ops = *ops;
 	state->priv = priv;
 
Signature · 1 line
2.35.1
author maintainer
#84 lore raw

PATCH 84/255 bnx2x: fix potential memory leak in bnx2x_tpa_stop()

In reply to Greg Kroah-Hartman

From: Jianglei Nie <[email protected]>

[ Upstream commit b43f9acbb8942b05252be83ac25a81cec70cc192 ]

bnx2x_tpa_stop() allocates a memory chunk from new_data with bnx2x_frag_alloc(). The new_data should be freed when gets some error. But when "pad + len > fp->rx_buf_size" is true, bnx2x_tpa_stop() returns without releasing the new_data, which will lead to a memory leak.

We should free the new_data with bnx2x_frag_free() when "pad + len > fp->rx_buf_size" is true.

Fixes 07b0f00964def8af9321cfd6c4a7e84f6362f728 ("bnx2x: fix possible panic under memory stress")
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 1 +
 1 file changed, 1 insertion(+)
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +1 -0
index 9af8afd7ae89..d8e13ee0601f 100644
@@ -787,6 +787,7 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 			BNX2X_ERR("skb_put is about to fail...  pad %d  len %d  rx_buf_size %d\n",
 				  pad, len, fp->rx_buf_size);
 			bnx2x_panic();
+			bnx2x_frag_free(fp, new_data);
 			return;
 		}
 #endif
Signature · 1 line
2.35.1
author maintainer
#162 lore raw

PATCH 149/255 drivers: serial: jsm: fix some leaks in probe

In reply to Greg Kroah-Hartman

From: Dan Carpenter <[email protected]>

[ Upstream commit 1d5859ef229e381f4db38dce8ed58e4bf862006b ]

This error path needs to unwind instead of just returning directly.

Fixes 03a8482c17dd ("drivers: serial: jsm: Enable support for Digi Classic adapters")
---
 drivers/tty/serial/jsm/jsm_driver.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/tty/serial/jsm/jsm_driver.c +2 -1
index 592e51d8944e..07e9be9865c7 100644
@@ -212,7 +212,8 @@ static int jsm_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 		break;
 	default:
-		return -ENXIO;
+		rc = -ENXIO;
+		goto out_kfree_brd;
 	}
 
 	rc = request_irq(brd->irq, brd->bd_ops->intr, IRQF_SHARED, "JSM", brd);
Signature · 1 line
2.35.1
author maintainer
#165 lore raw

PATCH 152/255 staging: vt6655: fix some erroneous memory clean-up loops

In reply to Greg Kroah-Hartman

From: Nam Cao <[email protected]>

[ Upstream commit 2a2db520e3ca5aafba7c211abfd397666c9b5f9d ]

In some initialization functions of this driver, memory is allocated with 'i' acting as an index variable and increasing from 0. The commit in "Fixes" introduces some clean-up codes in case of allocation failure, which free memory in reverse order with 'i' decreasing to 0. However, there are some problems:
- The case i=0 is left out. Thus memory is leaked.
- In case memory allocation fails right from the start, the memory freeing loops will start with i=-1 and invalid memory locations will be accessed.

One of these loops has been fixed in commit c8ff91535880 ("staging:
vt6655: fix potential memory leak"). Fix the remaining erroneous loops.

---
 drivers/staging/vt6655/device_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
drivers/staging/vt6655/device_main.c +3 -3
index 082302944c37..c1f9b263129e 100644
@@ -560,7 +560,7 @@ static int device_init_rd0_ring(struct vnt_private *priv)
 	kfree(desc->rd_info);
 
 err_free_desc:
-	while (--i) {
+	while (i--) {
 		desc = &priv->aRD0Ring[i];
 		device_free_rx_buf(priv, desc);
 		kfree(desc->rd_info);
@@ -606,7 +606,7 @@ static int device_init_rd1_ring(struct vnt_private *priv)
 	kfree(desc->rd_info);
 
 err_free_desc:
-	while (--i) {
+	while (i--) {
 		desc = &priv->aRD1Ring[i];
 		device_free_rx_buf(priv, desc);
 		kfree(desc->rd_info);
@@ -710,7 +710,7 @@ static int device_init_td1_ring(struct vnt_private *priv)
 	return 0;
 
 err_free_desc:
-	while (--i) {
+	while (i--) {
 		desc = &priv->apTD1Rings[i];
 		kfree(desc->td_info);
 	}
Signature · 1 line
2.35.1
author maintainer
#138 lore raw

PATCH 125/255 clk: berlin: Add of_node_put() for of_get_parent()

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit 37c381b812dcbfde9c3f1f3d3e75fdfc1b40d5bc ]

In berlin2_clock_setup() and berlin2q_clock_setup(), we need to call of_node_put() for the reference returned by of_get_parent() which has increased the refcount. We should call *_put() in fail path or when it is not used anymore.

Fixes 26b3b6b959b2 ("clk: berlin: prepare simple-mfd conversion")
---
 drivers/clk/berlin/bg2.c  | 5 ++++-
 drivers/clk/berlin/bg2q.c | 6 +++++-
 2 files changed, 9 insertions(+), 2 deletions(-)
drivers/clk/berlin/bg2.c +4 -1
index bccdfa00fd37..67a9edbba29c 100644
@@ -500,12 +500,15 @@ static void __init berlin2_clock_setup(struct device_node *np)
 	int n, ret;
 
 	clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
-	if (!clk_data)
+	if (!clk_data) {
+		of_node_put(parent_np);
 		return;
+	}
 	clk_data->num = MAX_CLKS;
 	hws = clk_data->hws;
 
 	gbase = of_iomap(parent_np, 0);
+	of_node_put(parent_np);
 	if (!gbase)
 		return;
 
drivers/clk/berlin/bg2q.c +5 -1
index e9518d35f262..dd2784bb75b6 100644
@@ -286,19 +286,23 @@ static void __init berlin2q_clock_setup(struct device_node *np)
 	int n, ret;
 
 	clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL);
-	if (!clk_data)
+	if (!clk_data) {
+		of_node_put(parent_np);
 		return;
+	}
 	clk_data->num = MAX_CLKS;
 	hws = clk_data->hws;
 
 	gbase = of_iomap(parent_np, 0);
 	if (!gbase) {
+		of_node_put(parent_np);
 		pr_err("%pOF: Unable to map global base\n", np);
 		return;
 	}
 
 	/* BG2Q CPU PLL is not part of global registers */
 	cpupll_base = of_iomap(parent_np, 1);
+	of_node_put(parent_np);
 	if (!cpupll_base) {
 		pr_err("%pOF: Unable to map cpupll base\n", np);
 		iounmap(gbase);
Signature · 1 line
2.35.1
author maintainer
#133 lore raw

PATCH 120/255 iio: adc: at91-sama5d2_adc: lock around oversampling and sample freq

In reply to Greg Kroah-Hartman

From: Claudiu Beznea <[email protected]>

[ Upstream commit 9780a23ed5a0a0a63683e078f576719a98d4fb70 ]

.read_raw()/.write_raw() could be called asynchronously from user space or other in kernel drivers. Without locking on st->lock these could be called asynchronously while there is a conversion in progress. Read will be harmless but changing registers while conversion is in progress may lead to inconsistent results. Thus, to avoid this lock st->lock.

Fixes 27e177190891 ("iio:adc:at91_adc8xx: introduce new atmel adc driver")
Fixes 6794e23fa3fe ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution")
---
 drivers/iio/adc/at91-sama5d2_adc.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)
drivers/iio/adc/at91-sama5d2_adc.c +8 -4
index 20ef858d65c7..734762084968 100644
@@ -1321,10 +1321,10 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev,
 		ret = at91_adc_read_position(st, chan->channel,
 					     &tmp_val);
 		*val = tmp_val;
-		mutex_unlock(&st->lock);
-		iio_device_release_direct_mode(indio_dev);
 		if (ret > 0)
 			ret = at91_adc_adjust_val_osr(st, val);
+		mutex_unlock(&st->lock);
+		iio_device_release_direct_mode(indio_dev);
 
 		return ret;
 	}
@@ -1337,10 +1337,10 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev,
 		ret = at91_adc_read_pressure(st, chan->channel,
 					     &tmp_val);
 		*val = tmp_val;
-		mutex_unlock(&st->lock);
-		iio_device_release_direct_mode(indio_dev);
 		if (ret > 0)
 			ret = at91_adc_adjust_val_osr(st, val);
+		mutex_unlock(&st->lock);
+		iio_device_release_direct_mode(indio_dev);
 
 		return ret;
 	}
@@ -1433,16 +1433,20 @@ static int at91_adc_write_raw(struct iio_dev *indio_dev,
 		/* if no change, optimize out */
 		if (val == st->oversampling_ratio)
 			return 0;
+		mutex_lock(&st->lock);
 		st->oversampling_ratio = val;
 		/* update ratio */
 		at91_adc_config_emr(st);
+		mutex_unlock(&st->lock);
 		return 0;
 	case IIO_CHAN_INFO_SAMP_FREQ:
 		if (val < st->soc_info.min_sample_rate ||
 		    val > st->soc_info.max_sample_rate)
 			return -EINVAL;
 
+		mutex_lock(&st->lock);
 		at91_adc_setup_samp_freq(indio_dev, val);
+		mutex_unlock(&st->lock);
 		return 0;
 	default:
 		return -EINVAL;
Signature · 1 line
2.35.1
author maintainer
#176 lore raw

PATCH 163/255 clk: mediatek: mt8183: mfgcfg: Propagate rate changes to parent

In reply to Greg Kroah-Hartman

From: Chen-Yu Tsai <[email protected]>

[ Upstream commit 9f94f545f258b15bfa6357eb62e1e307b712851e ]

The only clock in the MT8183 MFGCFG block feeds the GPU. Propagate its rate change requests to its parent, so that DVFS for the GPU can work properly.

---
 drivers/clk/mediatek/clk-mt8183-mfgcfg.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
drivers/clk/mediatek/clk-mt8183-mfgcfg.c +3 -3
index 37b4162c5882..3a33014eee7f 100644
@@ -18,9 +18,9 @@ static const struct mtk_gate_regs mfg_cg_regs = {
 	.sta_ofs = 0x0,
 };
 
-#define GATE_MFG(_id, _name, _parent, _shift)			\
-	GATE_MTK(_id, _name, _parent, &mfg_cg_regs, _shift,	\
-		&mtk_clk_gate_ops_setclr)
+#define GATE_MFG(_id, _name, _parent, _shift)				\
+	GATE_MTK_FLAGS(_id, _name, _parent, &mfg_cg_regs, _shift,	\
+		       &mtk_clk_gate_ops_setclr, CLK_SET_RATE_PARENT)
 
 static const struct mtk_gate mfg_clks[] = {
 	GATE_MFG(CLK_MFG_BG3D, "mfg_bg3d", "mfg_sel", 0)
Signature · 1 line
2.35.1
author maintainer
#183 lore raw

PATCH 170/255 powerpc/math_emu/efp: Include module.h

In reply to Greg Kroah-Hartman

From: Nathan Chancellor <[email protected]>

[ Upstream commit cfe0d370e0788625ce0df3239aad07a2506c1796 ]

When building with a recent version of clang, there are a couple of errors around the call to module_init():

arch/powerpc/math-emu/math_efp.c:927:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int] module_init(spe_mathemu_init);
^
int
arch/powerpc/math-emu/math_efp.c:927:13: error: a parameter list without types is only allowed in a function definition

  module_init(spe_mathemu_init);
              ^

2 errors generated.

module_init() is a macro, which is not getting expanded because module.h is not included in this file. Add the include so that the macro can expand properly, clearing up the build failure.

---
 arch/powerpc/math-emu/math_efp.c | 1 +
 1 file changed, 1 insertion(+)
arch/powerpc/math-emu/math_efp.c +1 -0
index 0a05e51964c1..90111c9e7521 100644
@@ -17,6 +17,7 @@
 
 #include <linux/types.h>
 #include <linux/prctl.h>
+#include <linux/module.h>
 
 #include <linux/uaccess.h>
 #include <asm/reg.h>
Signature · 1 line
2.35.1
author maintainer
#184 lore raw

PATCH 171/255 powerpc/sysdev/fsl_msi: Add missing of_node_put()

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit def435c04ee984a5f9ed2711b2bfe946936c6a21 ]

In fsl_setup_msi_irqs(), use of_node_put() to drop the reference returned by of_parse_phandle().

Fixes 895d603f945ba ("powerpc/fsl_msi: add support for the fsl, msi property in PCI nodes")
---
 arch/powerpc/sysdev/fsl_msi.c | 2 ++
 1 file changed, 2 insertions(+)
arch/powerpc/sysdev/fsl_msi.c +2 -0
index 808e7118abfc..d276c5e96445 100644
@@ -211,8 +211,10 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 			dev_err(&pdev->dev,
 				"node %pOF has an invalid fsl,msi phandle %u\n",
 				hose->dn, np->phandle);
+			of_node_put(np);
 			return -EINVAL;
 		}
+		of_node_put(np);
 	}
 
 	for_each_pci_msi_entry(entry, pdev) {
Signature · 1 line
2.35.1
author maintainer
#185 lore raw

PATCH 172/255 powerpc/pci_dn: Add missing of_node_put()

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit 110a1fcb6c4d55144d8179983a475f17a1d6f832 ]

In pci_add_device_node_info(), use of_node_put() to drop the reference to 'parent' returned by of_get_parent() to keep refcount balance.

---
 arch/powerpc/kernel/pci_dn.c | 1 +
 1 file changed, 1 insertion(+)
arch/powerpc/kernel/pci_dn.c +1 -0
index d876eda92609..d28433f0fc8e 100644
@@ -325,6 +325,7 @@ struct pci_dn *pci_add_device_node_info(struct pci_controller *hose,
 	INIT_LIST_HEAD(&pdn->list);
 	parent = of_get_parent(dn);
 	pdn->parent = parent ? PCI_DN(parent) : NULL;
+	of_node_put(parent);
 	if (pdn->parent)
 		list_add_tail(&pdn->list, &pdn->parent->child_list);
 
Signature · 1 line
2.35.1
author maintainer
#186 lore raw

PATCH 173/255 powerpc/powernv: add missing of_node_put() in opal_export_attrs()

In reply to Greg Kroah-Hartman

From: Zheng Yongjun <[email protected]>

[ Upstream commit 71a92e99c47900cc164620948b3863382cec4f1a ]

After using 'np' returned by of_find_node_by_path(), of_node_put() need be called to decrease the refcount.

Fixes 11fe909d2362 ("powerpc/powernv: Add OPAL exports attributes to sysfs")
---
 arch/powerpc/platforms/powernv/opal.c | 1 +
 1 file changed, 1 insertion(+)
arch/powerpc/platforms/powernv/opal.c +1 -0
index 38e90270280b..c3f968429161 100644
@@ -776,6 +776,7 @@ static void opal_export_attrs(void)
 	kobj = kobject_create_and_add("exports", opal_kobj);
 	if (!kobj) {
 		pr_warn("kobject_create_and_add() of exports failed\n");
+		of_node_put(np);
 		return;
 	}
 
Signature · 1 line
2.35.1
author maintainer
#156 lore raw

PATCH 143/255 ata: fix ata_id_has_ncq_autosense()

In reply to Greg Kroah-Hartman

From: Niklas Cassel <[email protected]>

[ Upstream commit a5fb6bf853148974dbde092ec1bde553bea5e49f ]

ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:

If word 76 is not 0000h or FFFFh, word 78 reports the features supported by the device. If this word is not supported, the word shall be cleared to zero.

(This text also exists in really old ACS standards, e.g. ACS-3.)

Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros (which already have this check), thus making it more likely that the next ATA_ID_FEATURE_SUPP macro that is added will include this check.

Fixes 5b01e4b9efa0 ("libata: Implement NCQ autosense")
---
 include/linux/ata.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
include/linux/ata.h +4 -2
index 8b884cd3a232..94f7872da983 100644
@@ -569,6 +569,10 @@ struct ata_bmdma_prd {
 	((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
 	  ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
 	 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)))
+#define ata_id_has_ncq_autosense(id) \
+	((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
+	  ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
+	 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7)))
 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
 #define ata_id_u32(id,n)	\
@@ -581,8 +585,6 @@ struct ata_bmdma_prd {
 
 #define ata_id_cdb_intr(id)	(((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
 #define ata_id_has_da(id)	((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
-#define ata_id_has_ncq_autosense(id) \
-				((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))
 
 static inline bool ata_id_has_hipm(const u16 *id)
 {
Signature · 1 line
2.35.1
author maintainer
#190 lore raw

PATCH 177/255 cgroup/cpuset: Enable update_tasks_cpumask() on top_cpuset

In reply to Greg Kroah-Hartman

From: Waiman Long <[email protected]>

[ Upstream commit ec5fbdfb99d18482619ac42605cb80fbb56068ee ]

Previously, update_tasks_cpumask() is not supposed to be called with top cpuset. With cpuset partition that takes CPUs away from the top cpuset, adjusting the cpus_mask of the tasks in the top cpuset is necessary. Percpu kthreads, however, are ignored.

Fixes ee8dde0cd2ce ("cpuset: Add new v2 cpuset.sched.partition flag")
---
 kernel/cgroup/cpuset.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)
kernel/cgroup/cpuset.c +11 -7
index 9ba94a9a67aa..c7f4526ca64e 100644
@@ -33,6 +33,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/kmod.h>
+#include <linux/kthread.h>
 #include <linux/list.h>
 #include <linux/mempolicy.h>
 #include <linux/mm.h>
@@ -1057,10 +1058,18 @@ static void update_tasks_cpumask(struct cpuset *cs)
 {
 	struct css_task_iter it;
 	struct task_struct *task;
+	bool top_cs = cs == &top_cpuset;
 
 	css_task_iter_start(&cs->css, 0, &it);
-	while ((task = css_task_iter_next(&it)))
+	while ((task = css_task_iter_next(&it))) {
+		/*
+		 * Percpu kthreads in top_cpuset are ignored
+		 */
+		if (top_cs && (task->flags & PF_KTHREAD) &&
+		    kthread_is_per_cpu(task))
+			continue;
 		set_cpus_allowed_ptr(task, cs->effective_cpus);
+	}
 	css_task_iter_end(&it);
 }
 
@@ -2014,12 +2023,7 @@ static int update_prstate(struct cpuset *cs, int val)
 		update_flag(CS_CPU_EXCLUSIVE, cs, 0);
 	}
 
-	/*
-	 * Update cpumask of parent's tasks except when it is the top
-	 * cpuset as some system daemons cannot be mapped to other CPUs.
-	 */
-	if (parent != &top_cpuset)
-		update_tasks_cpumask(parent);
+	update_tasks_cpumask(parent);
 
 	if (parent->child_ecpus_count)
 		update_sibling_cpumasks(parent, cs, &tmp);
Signature · 1 line
2.35.1
author maintainer
#191 lore raw

PATCH 178/255 iommu/omap: Fix buffer overflow in debugfs

In reply to Greg Kroah-Hartman

From: Dan Carpenter <[email protected]>

[ Upstream commit 184233a5202786b20220acd2d04ddf909ef18f29 ]

There are two issues here:

1) The "len" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a buffer overflow.
2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.

---
 drivers/iommu/omap-iommu-debug.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
drivers/iommu/omap-iommu-debug.c +3 -3
index a99afb5d9011..259f65291d90 100644
@@ -32,12 +32,12 @@ static inline bool is_omap_iommu_detached(struct omap_iommu *obj)
 		ssize_t bytes;						\
 		const char *str = "%20s: %08x\n";			\
 		const int maxcol = 32;					\
-		bytes = snprintf(p, maxcol, str, __stringify(name),	\
+		if (len < maxcol)					\
+			goto out;					\
+		bytes = scnprintf(p, maxcol, str, __stringify(name),	\
 				 iommu_read_reg(obj, MMU_##name));	\
 		p += bytes;						\
 		len -= bytes;						\
-		if (len < maxcol)					\
-			goto out;					\
 	} while (0)
 
 static ssize_t
Signature · 1 line
2.35.1
author maintainer
#39 lore raw

PATCH 39/255 nilfs2: fix use-after-free bug of struct nilfs_root

In reply to Greg Kroah-Hartman

From: Ryusuke Konishi <[email protected]>

commit d325dc6eb763c10f591c239550b8c7e5466a5d09 upstream.

If the beginning of the inode bitmap area is corrupted on disk, an inode with the same inode number as the root inode can be allocated and fail soon after. In this case, the subsequent call to nilfs_clear_inode() on that bogus root inode will wrongly decrement the reference counter of struct nilfs_root, and this will erroneously free struct nilfs_root, causing kernel oopses.

This fixes the problem by changing nilfs_new_inode() to skip reserved inode numbers while repairing the inode bitmap.

---
 fs/nilfs2/inode.c |   18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)
fs/nilfs2/inode.c +17 -1
@@ -340,6 +340,7 @@ struct inode *nilfs_new_inode(struct ino
 	struct inode *inode;
 	struct nilfs_inode_info *ii;
 	struct nilfs_root *root;
+	struct buffer_head *bh;
 	int err = -ENOMEM;
 	ino_t ino;
 
@@ -355,11 +356,26 @@ struct inode *nilfs_new_inode(struct ino
 	ii->i_state = BIT(NILFS_I_NEW);
 	ii->i_root = root;
 
-	err = nilfs_ifile_create_inode(root->ifile, &ino, &ii->i_bh);
+	err = nilfs_ifile_create_inode(root->ifile, &ino, &bh);
 	if (unlikely(err))
 		goto failed_ifile_create_inode;
 	/* reference count of i_bh inherits from nilfs_mdt_read_block() */
 
+	if (unlikely(ino < NILFS_USER_INO)) {
+		nilfs_msg(sb, KERN_WARNING,
+			  "inode bitmap is inconsistent for reserved inodes");
+		do {
+			brelse(bh);
+			err = nilfs_ifile_create_inode(root->ifile, &ino, &bh);
+			if (unlikely(err))
+				goto failed_ifile_create_inode;
+		} while (ino < NILFS_USER_INO);
+
+		nilfs_msg(sb, KERN_INFO,
+			  "repaired inode bitmap for reserved inodes");
+	}
+	ii->i_bh = bh;
+
 	atomic64_inc(&root->inodes_count);
 	inode_init_owner(inode, dir, mode);
 	inode->i_ino = ino;
author maintainer
#40 lore raw

PATCH 40/255 jbd2: wake up journal waiters in FIFO order, not LIFO

In reply to Greg Kroah-Hartman

From: Andrew Perepechko <[email protected]>

commit 34fc8768ec6089565d6d73bad26724083cecf7bd upstream.

LIFO wakeup order is unfair and sometimes leads to a journal user not being able to get a journal handle for hundreds of transactions in a row.

FIFO wakeup can make things more fair.

---
 fs/jbd2/commit.c      |    2 +-
 fs/jbd2/transaction.c |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)
fs/jbd2/commit.c +1 -1
@@ -531,7 +531,7 @@ void jbd2_journal_commit_transaction(jou
 	journal->j_running_transaction = NULL;
 	start_time = ktime_get();
 	commit_transaction->t_log_start = journal->j_head;
-	wake_up(&journal->j_wait_transaction_locked);
+	wake_up_all(&journal->j_wait_transaction_locked);
 	write_unlock(&journal->j_state_lock);
 
 	jbd_debug(3, "JBD2: commit phase 2a\n");
fs/jbd2/transaction.c +3 -3
@@ -149,7 +149,7 @@ static void wait_transaction_locked(jour
 	int need_to_start;
 	tid_t tid = journal->j_running_transaction->t_tid;
 
-	prepare_to_wait(&journal->j_wait_transaction_locked, &wait,
+	prepare_to_wait_exclusive(&journal->j_wait_transaction_locked, &wait,
 			TASK_UNINTERRUPTIBLE);
 	need_to_start = !tid_geq(journal->j_commit_request, tid);
 	read_unlock(&journal->j_state_lock);
@@ -175,7 +175,7 @@ static void wait_transaction_switching(j
 		read_unlock(&journal->j_state_lock);
 		return;
 	}
-	prepare_to_wait(&journal->j_wait_transaction_locked, &wait,
+	prepare_to_wait_exclusive(&journal->j_wait_transaction_locked, &wait,
 			TASK_UNINTERRUPTIBLE);
 	read_unlock(&journal->j_state_lock);
 	/*
@@ -810,7 +810,7 @@ void jbd2_journal_unlock_updates (journa
 	write_lock(&journal->j_state_lock);
 	--journal->j_barrier_count;
 	write_unlock(&journal->j_state_lock);
-	wake_up(&journal->j_wait_transaction_locked);
+	wake_up_all(&journal->j_wait_transaction_locked);
 }
 
 static void warn_dirty_buffer(struct buffer_head *bh)
author maintainer
#170 lore raw

PATCH 157/255 mfd: intel_soc_pmic: Fix an error handling path in intel_soc_pmic_i2c_probe()

In reply to Greg Kroah-Hartman

From: Christophe JAILLET <[email protected]>

[ Upstream commit 48749cabba109397b4e7dd556e85718ec0ec114d ]

The commit in Fixes: has added a pwm_add_table() call in the probe() and a pwm_remove_table() call in the remove(), but forget to update the error handling path of the probe.

Add the missing pwm_remove_table() call.

Fixes a3aa9a93df9f ("mfd: intel_soc_pmic_core: ADD PWM lookup table for CRC PMIC based PWM")
---
 drivers/mfd/intel_soc_pmic_core.c | 1 +
 1 file changed, 1 insertion(+)
drivers/mfd/intel_soc_pmic_core.c +1 -0
index c9f35378d391..4d9b2ad9b086 100644
@@ -111,6 +111,7 @@ static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c,
 	return 0;
 
 err_del_irq_chip:
+	pwm_remove_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup));
 	regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
 	return ret;
 }
Signature · 1 line
2.35.1
author maintainer
#171 lore raw

PATCH 158/255 mfd: fsl-imx25: Fix an error handling path in mx25_tsadc_setup_irq()

In reply to Greg Kroah-Hartman

From: Christophe JAILLET <[email protected]>

[ Upstream commit 3fa9e4cfb55da512ebfd57336fde468830719298 ]

If devm_of_platform_populate() fails, some resources need to be released.

Introduce a mx25_tsadc_unset_irq() function that undoes mx25_tsadc_setup_irq() and call it both from the new error handling path of the probe and in the remove function.

---
 drivers/mfd/fsl-imx25-tsadc.c | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)
drivers/mfd/fsl-imx25-tsadc.c +24 -8
index a016b39fe9b0..95103b2cc471 100644
@@ -84,6 +84,19 @@ static int mx25_tsadc_setup_irq(struct platform_device *pdev,
 	return 0;
 }
 
+static int mx25_tsadc_unset_irq(struct platform_device *pdev)
+{
+	struct mx25_tsadc *tsadc = platform_get_drvdata(pdev);
+	int irq = platform_get_irq(pdev, 0);
+
+	if (irq) {
+		irq_set_chained_handler_and_data(irq, NULL, NULL);
+		irq_domain_remove(tsadc->domain);
+	}
+
+	return 0;
+}
+
 static void mx25_tsadc_setup_clk(struct platform_device *pdev,
 				 struct mx25_tsadc *tsadc)
 {
@@ -171,18 +184,21 @@ static int mx25_tsadc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, tsadc);
 
-	return devm_of_platform_populate(dev);
+	ret = devm_of_platform_populate(dev);
+	if (ret)
+		goto err_irq;
+
+	return 0;
+
+err_irq:
+	mx25_tsadc_unset_irq(pdev);
+
+	return ret;
 }
 
 static int mx25_tsadc_remove(struct platform_device *pdev)
 {
-	struct mx25_tsadc *tsadc = platform_get_drvdata(pdev);
-	int irq = platform_get_irq(pdev, 0);
-
-	if (irq) {
-		irq_set_chained_handler_and_data(irq, NULL, NULL);
-		irq_domain_remove(tsadc->domain);
-	}
+	mx25_tsadc_unset_irq(pdev);
 
 	return 0;
 }
Signature · 1 line
2.35.1
author maintainer
#166 lore raw

PATCH 153/255 firmware: google: Test spinlock on panic path to avoid lockups

In reply to Greg Kroah-Hartman

From: Guilherme G. Piccoli <[email protected]>

[ Upstream commit 3e081438b8e639cc76ef1a5ce0c1bd8a154082c7 ]

Currently the gsmi driver registers a panic notifier as well as reboot and die notifiers. The callbacks registered are called in atomic and very limited context - for instance, panic disables preemption and local IRQs, also all secondary CPUs (not executing the panic path) are shutdown.

With that said, taking a spinlock in this scenario is a dangerous invitation for lockup scenarios. So, fix that by checking if the spinlock is free to acquire in the panic notifier callback - if not, bail-out and avoid a potential hang.

Fixes 74c5b31c6618 ("driver: Google EFI SMI")
Cc Andrew Morton <[email protected]>
Cc Ard Biesheuvel <[email protected]>
Cc David Gow <[email protected]>
Cc Greg Kroah-Hartman <[email protected]>
Cc Julius Werner <[email protected]>
Cc Petr Mladek <[email protected]>
---
 drivers/firmware/google/gsmi.c | 9 +++++++++
 1 file changed, 9 insertions(+)
drivers/firmware/google/gsmi.c +9 -0
index edaa4e5d84ad..517fb57d07d2 100644
@@ -679,6 +679,15 @@ static struct notifier_block gsmi_die_notifier = {
 static int gsmi_panic_callback(struct notifier_block *nb,
 			       unsigned long reason, void *arg)
 {
+
+	/*
+	 * Panic callbacks are executed with all other CPUs stopped,
+	 * so we must not attempt to spin waiting for gsmi_dev.lock
+	 * to be released.
+	 */
+	if (spin_is_locked(&gsmi_dev.lock))
+		return NOTIFY_DONE;
+
 	gsmi_shutdown_reason(GSMI_SHUTDOWN_PANIC);
 	return NOTIFY_DONE;
 }
Signature · 1 line
2.35.1
author maintainer
#196 lore raw

PATCH 183/255 crypto: cavium - prevent integer overflow loading firmware

In reply to Greg Kroah-Hartman

From: Dan Carpenter <[email protected]>

[ Upstream commit 2526d6bf27d15054bb0778b2f7bc6625fd934905 ]

The "code_length" value comes from the firmware file. If your firmware is untrusted realistically there is probably very little you can do to protect yourself. Still we try to limit the damage as much as possible. Also Smatch marks any data read from the filesystem as untrusted and prints warnings if it not capped correctly.

The "ntohl(ucode->code_length) * 2" multiplication can have an integer overflow.

Fixes 9e2c7d99941d ("crypto: cavium - Add Support for Octeon-tx CPT Engine")
---
 drivers/crypto/cavium/cpt/cptpf_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/crypto/cavium/cpt/cptpf_main.c +4 -2
index 781949027451..d9362199423f 100644
@@ -254,6 +254,7 @@ static int cpt_ucode_load_fw(struct cpt_device *cpt, const u8 *fw, bool is_ae)
 	const struct firmware *fw_entry;
 	struct device *dev = &cpt->pdev->dev;
 	struct ucode_header *ucode;
+	unsigned int code_length;
 	struct microcode *mcode;
 	int j, ret = 0;
 
@@ -264,11 +265,12 @@ static int cpt_ucode_load_fw(struct cpt_device *cpt, const u8 *fw, bool is_ae)
 	ucode = (struct ucode_header *)fw_entry->data;
 	mcode = &cpt->mcode[cpt->next_mc_idx];
 	memcpy(mcode->version, (u8 *)fw_entry->data, CPT_UCODE_VERSION_SZ);
-	mcode->code_size = ntohl(ucode->code_length) * 2;
-	if (!mcode->code_size) {
+	code_length = ntohl(ucode->code_length);
+	if (code_length == 0 || code_length >= INT_MAX / 2) {
 		ret = -EINVAL;
 		goto fw_release;
 	}
+	mcode->code_size = code_length * 2;
 
 	mcode->is_ae = is_ae;
 	mcode->core_mask = 0ULL;
Signature · 1 line
2.35.1
author maintainer
#210 lore raw

PATCH 197/255 xfrm: Update ipcomp_scratches with NULL when freed

In reply to Greg Kroah-Hartman

From: Khalid Masum <[email protected]>

[ Upstream commit 8a04d2fc700f717104bfb95b0f6694e448a4537f ]

Currently if ipcomp_alloc_scratches() fails to allocate memory ipcomp_scratches holds obsolete address. So when we try to free the percpu scratches using ipcomp_free_scratches() it tries to vfree non existent vm area. Described below:

static void * __percpu *ipcomp_alloc_scratches(void)

{
        ...
        scratches = alloc_percpu(void *);
        if (!scratches)
                return NULL;
ipcomp_scratches does not know about this allocation failure.
Therefore holding the old obsolete address.
        ...
}

So when we free,

static void ipcomp_free_scratches(void)

{
        ...
        scratches = ipcomp_scratches;

Assigning obsolete address from ipcomp_scratches

        if (!scratches)
                return;

        for_each_possible_cpu(i)
               vfree(*per_cpu_ptr(scratches, i));
Trying to free non existent page, causing warning: trying to vfree
existent vm area.
        ...
}

Fix this breakage by updating ipcomp_scrtches with NULL when scratches is freed

---
 net/xfrm/xfrm_ipcomp.c | 1 +
 1 file changed, 1 insertion(+)
net/xfrm/xfrm_ipcomp.c +1 -0
index 4d422447aadc..4fca4b6cec8b 100644
@@ -212,6 +212,7 @@ static void ipcomp_free_scratches(void)
 		vfree(*per_cpu_ptr(scratches, i));
 
 	free_percpu(scratches);
+	ipcomp_scratches = NULL;
 }
 
 static void * __percpu *ipcomp_alloc_scratches(void)
Signature · 1 line
2.35.1
author maintainer
#235 lore raw

PATCH 220/255 ARM: dts: imx6q: add missing properties for sram

In reply to Greg Kroah-Hartman

From: Alexander Stein <[email protected]>

[ Upstream commit b11d083c5dcec7c42fe982c854706d404ddd3a5f ]

All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property sram@900000: '#size-cells' is a required property sram@900000: 'ranges' is a required property

---
 arch/arm/boot/dts/imx6q.dtsi | 3 +++
 1 file changed, 3 insertions(+)
arch/arm/boot/dts/imx6q.dtsi +3 -0
index d038f4117024..013080e709f8 100644
@@ -158,6 +158,9 @@
 		ocram: sram@900000 {
 			compatible = "mmio-sram";
 			reg = <0x00900000 0x40000>;
+			ranges = <0 0x00900000 0x40000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
Signature · 1 line
2.35.1
author maintainer
#211 lore raw

PATCH 198/255 wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()

In reply to Greg Kroah-Hartman

From: Alexander Coffin <[email protected]>

[ Upstream commit 3f42faf6db431e04bf942d2ebe3ae88975723478 ]

Quoted 1 line

ret = brcmf_proto_tx_queue_data(drvr, ifp->ifidx, skb);

may be schedule, and then complete before the line

Quoted 1 line

ndev->stats.tx_bytes += skb->len;

[   46.912801] ==================================================================
[   46.920552] BUG: KASAN: use-after-free in brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]
[   46.928673] Read of size 4 at addr ffffff803f5882e8 by task systemd-resolve/328
[   46.935991]
[   46.937514] CPU: 1 PID: 328 Comm: systemd-resolve Tainted: G           O      5.4.199-[REDACTED] #1
[   46.947255] Hardware name: [REDACTED]
[   46.954568] Call trace:
[   46.957037]  dump_backtrace+0x0/0x2b8
[   46.960719]  show_stack+0x24/0x30
[   46.964052]  dump_stack+0x128/0x194
[   46.967557]  print_address_description.isra.0+0x64/0x380
[   46.972877]  __kasan_report+0x1d4/0x240
[   46.976723]  kasan_report+0xc/0x18
[   46.980138]  __asan_report_load4_noabort+0x18/0x20
[   46.985027]  brcmf_netdev_start_xmit+0x718/0x8c8 [brcmfmac]
[   46.990613]  dev_hard_start_xmit+0x1bc/0xda0
[   46.994894]  sch_direct_xmit+0x198/0xd08
[   46.998827]  __qdisc_run+0x37c/0x1dc0
[   47.002500]  __dev_queue_xmit+0x1528/0x21f8
[   47.006692]  dev_queue_xmit+0x24/0x30
[   47.010366]  neigh_resolve_output+0x37c/0x678
[   47.014734]  ip_finish_output2+0x598/0x2458
[   47.018927]  __ip_finish_output+0x300/0x730
[   47.023118]  ip_output+0x2e0/0x430
[   47.026530]  ip_local_out+0x90/0x140
[   47.030117]  igmpv3_sendpack+0x14c/0x228
[   47.034049]  igmpv3_send_cr+0x384/0x6b8
[   47.037895]  igmp_ifc_timer_expire+0x4c/0x118
[   47.042262]  call_timer_fn+0x1cc/0xbe8
[   47.046021]  __run_timers+0x4d8/0xb28
[   47.049693]  run_timer_softirq+0x24/0x40
[   47.053626]  __do_softirq+0x2c0/0x117c
[   47.057387]  irq_exit+0x2dc/0x388
[   47.060715]  __handle_domain_irq+0xb4/0x158
[   47.064908]  gic_handle_irq+0x58/0xb0
[   47.068581]  el0_irq_naked+0x50/0x5c
[   47.072162]
[   47.073665] Allocated by task 328:
[   47.077083]  save_stack+0x24/0xb0
[   47.080410]  __kasan_kmalloc.isra.0+0xc0/0xe0
[   47.084776]  kasan_slab_alloc+0x14/0x20
[   47.088622]  kmem_cache_alloc+0x15c/0x468
[   47.092643]  __alloc_skb+0xa4/0x498
[   47.096142]  igmpv3_newpack+0x158/0xd78
[   47.099987]  add_grhead+0x210/0x288
[   47.103485]  add_grec+0x6b0/0xb70
[   47.106811]  igmpv3_send_cr+0x2e0/0x6b8
[   47.110657]  igmp_ifc_timer_expire+0x4c/0x118
[   47.115027]  call_timer_fn+0x1cc/0xbe8
[   47.118785]  __run_timers+0x4d8/0xb28
[   47.122457]  run_timer_softirq+0x24/0x40
[   47.126389]  __do_softirq+0x2c0/0x117c
[   47.130142]
[   47.131643] Freed by task 180:
[   47.134712]  save_stack+0x24/0xb0
[   47.138041]  __kasan_slab_free+0x108/0x180
[   47.142146]  kasan_slab_free+0x10/0x18
[   47.145904]  slab_free_freelist_hook+0xa4/0x1b0
[   47.150444]  kmem_cache_free+0x8c/0x528
[   47.154292]  kfree_skbmem+0x94/0x108
[   47.157880]  consume_skb+0x10c/0x5a8
[   47.161466]  __dev_kfree_skb_any+0x88/0xa0
[   47.165598]  brcmu_pkt_buf_free_skb+0x44/0x68 [brcmutil]
[   47.171023]  brcmf_txfinalize+0xec/0x190 [brcmfmac]
[   47.176016]  brcmf_proto_bcdc_txcomplete+0x1c0/0x210 [brcmfmac]
[   47.182056]  brcmf_sdio_sendfromq+0x8dc/0x1e80 [brcmfmac]
[   47.187568]  brcmf_sdio_dpc+0xb48/0x2108 [brcmfmac]
[   47.192529]  brcmf_sdio_dataworker+0xc8/0x238 [brcmfmac]
[   47.197859]  process_one_work+0x7fc/0x1a80
[   47.201965]  worker_thread+0x31c/0xc40
[   47.205726]  kthread+0x2d8/0x370
[   47.208967]  ret_from_fork+0x10/0x18
[   47.212546]
[   47.214051] The buggy address belongs to the object at ffffff803f588280
[   47.214051]  which belongs to the cache skbuff_head_cache of size 208
[   47.227086] The buggy address is located 104 bytes inside of
[   47.227086]  208-byte region [ffffff803f588280, ffffff803f588350)
[   47.238814] The buggy address belongs to the page:
[   47.243618] page:ffffffff00dd6200 refcount:1 mapcount:0 mapping:ffffff804b6bf800 index:0xffffff803f589900 compound_mapcount: 0
[   47.255007] flags: 0x10200(slab|head)
[   47.258689] raw: 0000000000010200 ffffffff00dfa980 0000000200000002 ffffff804b6bf800
[   47.266439] raw: ffffff803f589900 0000000080190018 00000001ffffffff 0000000000000000
[   47.274180] page dumped because: kasan: bad access detected
[   47.279752]
[   47.281251] Memory state around the buggy address:
[   47.286051]  ffffff803f588180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   47.293277]  ffffff803f588200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   47.300502] >ffffff803f588280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   47.307723]                                                           ^
[   47.314343]  ffffff803f588300: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   47.321569]  ffffff803f588380: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
[   47.328789] ==================================================================
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +2 -1
index edb79e9665dc..5b7c1b99273d 100644
@@ -290,6 +290,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 	struct brcmf_pub *drvr = ifp->drvr;
 	struct ethhdr *eh;
 	int head_delta;
+	unsigned int tx_bytes = skb->len;
 
 	brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 
@@ -361,7 +362,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 		ndev->stats.tx_dropped++;
 	} else {
 		ndev->stats.tx_packets++;
-		ndev->stats.tx_bytes += skb->len;
+		ndev->stats.tx_bytes += tx_bytes;
 	}
 
 	/* Return ok: we always eat the packet */
Signature · 1 line
2.35.1
author maintainer
#223 lore raw

PATCH 208/255 Bluetooth: L2CAP: Fix user-after-free

In reply to Greg Kroah-Hartman

From: Luiz Augusto von Dentz <[email protected]>

[ Upstream commit 35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f ]

This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace:

Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref *kref)
Bluetooth: chan 0000000023c4974d
Bluetooth: parent 00000000ae861c08
==================================================================

BUG: KASAN: use-after-free in __mutex_waiter_is_first
kernel/locking/mutex.c:191 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common
kernel/locking/mutex.c:671 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400
kernel/locking/mutex.c:729
Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389
---
 net/bluetooth/l2cap_core.c | 7 +++++++
 1 file changed, 7 insertions(+)
net/bluetooth/l2cap_core.c +7 -0
index 442432f89be1..2d28b4e49b7a 100644
@@ -4066,6 +4066,12 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn,
 		}
 	}
 
+	chan = l2cap_chan_hold_unless_zero(chan);
+	if (!chan) {
+		err = -EBADSLT;
+		goto unlock;
+	}
+
 	err = 0;
 
 	l2cap_chan_lock(chan);
@@ -4095,6 +4101,7 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn,
 	}
 
 	l2cap_chan_unlock(chan);
+	l2cap_chan_put(chan);
 
 unlock:
 	mutex_unlock(&conn->chan_lock);
Signature · 1 line
2.35.1
author maintainer
#232 lore raw

PATCH 217/255 drm/amdgpu: fix initial connector audio value

In reply to Greg Kroah-Hartman

From: hongao <[email protected]>

[ Upstream commit 4bb71fce58f30df3f251118291d6b0187ce531e6 ]

This got lost somewhere along the way, This fixes
audio not working until set_property was called.

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +6 -1
index 0e1cacf73169..cf80da354ba1 100644
@@ -1646,10 +1646,12 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 						   adev->mode_info.dither_property,
 						   AMDGPU_FMT_DITHER_DISABLE);
 
-			if (amdgpu_audio != 0)
+			if (amdgpu_audio != 0) {
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
+			}
 
 			subpixel_order = SubPixelHorizontalRGB;
 			connector->interlace_allowed = true;
@@ -1771,6 +1773,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1824,6 +1827,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
@@ -1874,6 +1878,7 @@ amdgpu_connector_add(struct amdgpu_device *adev,
 				drm_object_attach_property(&amdgpu_connector->base.base,
 							   adev->mode_info.audio_property,
 							   AMDGPU_AUDIO_AUTO);
+				amdgpu_connector->audio = AMDGPU_AUDIO_AUTO;
 			}
 			drm_object_attach_property(&amdgpu_connector->base.base,
 						   adev->mode_info.dither_property,
Signature · 1 line
2.35.1
author maintainer
#228 lore raw

PATCH 213/255 drm/amd/display: fix overflow on MIN_I64 definition

In reply to Greg Kroah-Hartman

From: David Gow <[email protected]>

[ Upstream commit 6ae0632d17759852c07e2d1e0a31c728eb6ba246 ]

The definition of MIN_I64 in bw_fixed.c can cause gcc to whinge about integer overflow, because it is treated as a positive value, which is then negated. The temporary positive value is not necessarily representable.

This causes the following warning:
../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/calcs/bw_fixed.c:30:19:
warning: integer overflow in expression ‘-9223372036854775808’ of type ‘long long int’ results in ‘-9223372036854775808’ [-Woverflow]
30 | (int64_t)(-(1LL << 63))
| ^

Writing out (-MAX_I64 - 1) works instead.

---
 drivers/gpu/drm/amd/display/dc/calcs/bw_fixed.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
drivers/gpu/drm/amd/display/dc/calcs/bw_fixed.c +3 -3
index 6ca288fb5fb9..2d46bc527b21 100644
@@ -26,12 +26,12 @@
 #include "bw_fixed.h"
 
 
-#define MIN_I64 \
-	(int64_t)(-(1LL << 63))
-
 #define MAX_I64 \
 	(int64_t)((1ULL << 63) - 1)
 
+#define MIN_I64 \
+	(-MAX_I64 - 1)
+
 #define FRACTIONAL_PART_MASK \
 	((1ULL << BW_FIXED_BITS_PER_FRACTIONAL_PART) - 1)
 
Signature · 1 line
2.35.1
author maintainer
#227 lore raw

PATCH 212/255 drm: Prevent drm_copy_field() to attempt copying a NULL pointer

In reply to Greg Kroah-Hartman

From: Javier Martinez Canillas <[email protected]>

[ Upstream commit f6ee30407e883042482ad4ad30da5eaba47872ee ]

There are some struct drm_driver fields that are required by drivers since drm_copy_field() attempts to copy them to user-space via DRM_IOCTL_VERSION.

But it can be possible that a driver has a bug and did not set some of the fields, which leads to drm_copy_field() attempting to copy a NULL pointer:

[ +10.395966] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000

[  +0.010955] Mem abort info:
[  +0.002835]   ESR = 0x0000000096000004
[  +0.003872]   EC = 0x25: DABT (current EL), IL = 32 bits
[  +0.005395]   SET = 0, FnV = 0
[  +0.003113]   EA = 0, S1PTW = 0
[  +0.003182]   FSC = 0x04: level 0 translation fault
[  +0.004964] Data abort info:
[  +0.002919]   ISV = 0, ISS = 0x00000004
[  +0.003886]   CM = 0, WnR = 0
[  +0.003040] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000115dad000
[  +0.006536] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[  +0.006925] Internal error: Oops: 96000004 [#1] SMP
...
[  +0.011113] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  +0.007061] pc : __pi_strlen+0x14/0x150
[  +0.003895] lr : drm_copy_field+0x30/0x1a4
[  +0.004156] sp : ffff8000094b3a50
[  +0.003355] x29: ffff8000094b3a50 x28: ffff8000094b3b70 x27: 0000000000000040
[  +0.007242] x26: ffff443743c2ba00 x25: 0000000000000000 x24: 0000000000000040
[  +0.007243] x23: ffff443743c2ba00 x22: ffff8000094b3b70 x21: 0000000000000000
[  +0.007241] x20: 0000000000000000 x19: ffff8000094b3b90 x18: 0000000000000000
[  +0.007241] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaab14b9af40
[  +0.007241] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[  +0.007239] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa524ad67d4d8
[  +0.007242] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : 6c6e6263606e7141
[  +0.007239] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[  +0.007241] x2 : 0000000000000000 x1 : ffff8000094b3b90 x0 : 0000000000000000
[  +0.007240] Call trace:
[  +0.002475]  __pi_strlen+0x14/0x150
[  +0.003537]  drm_version+0x84/0xac
[  +0.003448]  drm_ioctl_kernel+0xa8/0x16c
[  +0.003975]  drm_ioctl+0x270/0x580
[  +0.003448]  __arm64_sys_ioctl+0xb8/0xfc
[  +0.003978]  invoke_syscall+0x78/0x100
[  +0.003799]  el0_svc_common.constprop.0+0x4c/0xf4
[  +0.004767]  do_el0_svc+0x38/0x4c
[  +0.003357]  el0_svc+0x34/0x100
[  +0.003185]  el0t_64_sync_handler+0x11c/0x150
[  +0.004418]  el0t_64_sync+0x190/0x194
[  +0.003716] Code: 92402c04 b200c3e8 f13fc09f 5400088c (a9400c02)
[  +0.006180] ---[ end trace 0000000000000000 ]---
---
 drivers/gpu/drm/drm_ioctl.c | 6 ++++++
 1 file changed, 6 insertions(+)
drivers/gpu/drm/drm_ioctl.c +6 -0
index bde71aa67784..5b93150b1141 100644
@@ -475,6 +475,12 @@ static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
 	size_t len;
 
+	/* don't attempt to copy a NULL pointer */
+	if (WARN_ONCE(!value, "BUG: the value to copy was not set!")) {
+		*buf_len = 0;
+		return 0;
+	}
+
 	/* don't overflow userbuf */
 	len = strlen(value);
 	if (len > *buf_len)
Signature · 1 line
2.35.1
author maintainer
#245 lore raw

PATCH 230/255 scsi: 3w-9xxx: Avoid disabling device if failing to enable it

In reply to Greg Kroah-Hartman

From: Letu Ren <[email protected]>

[ Upstream commit 7eff437b5ee1309b34667844361c6bbb5c97df05 ]

The original code will "goto out_disable_device" and call pci_disable_device() if pci_enable_device() fails. The kernel will generate a warning message like "3w-9xxx 0000:00:05.0: disabling already-disabled device".

We shouldn't disable a device that failed to be enabled. A simple return is fine.

---
 drivers/scsi/3w-9xxx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/scsi/3w-9xxx.c +1 -1
index 3337b1e80412..f6f92033132a 100644
@@ -2014,7 +2014,7 @@ static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
 	retval = pci_enable_device(pdev);
 	if (retval) {
 		TW_PRINTK(host, TW_DRIVER, 0x34, "Failed to enable pci device");
-		goto out_disable_device;
+		return -ENODEV;
 	}
 
 	pci_set_master(pdev);
Signature · 1 line
2.35.1
author maintainer
#204 lore raw

PATCH 191/255 wifi: brcmfmac: fix invalid address access when enabling SCAN log level

In reply to Greg Kroah-Hartman

From: Wright Feng <[email protected]>

[ Upstream commit aa666b68e73fc06d83c070d96180b9010cf5a960 ]

The variable i is changed when setting random MAC address and causes invalid address access when printing the value of pi->reqs[i]->reqid.

We replace reqs index with ri to fix the issue.

[  136.726473] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000
[  136.737365] Mem abort info:
[  136.740172]   ESR = 0x96000004
[  136.743359]   Exception class = DABT (current EL), IL = 32 bits
[  136.749294]   SET = 0, FnV = 0
[  136.752481]   EA = 0, S1PTW = 0
[  136.755635] Data abort info:
[  136.758514]   ISV = 0, ISS = 0x00000004
[  136.762487]   CM = 0, WnR = 0
[  136.765522] user pgtable: 4k pages, 48-bit VAs, pgdp = 000000005c4e2577
[  136.772265] [0000000000000000] pgd=0000000000000000
[  136.777160] Internal error: Oops: 96000004 [#1] PREEMPT SMP
[  136.782732] Modules linked in: brcmfmac(O) brcmutil(O) cfg80211(O) compat(O)
[  136.789788] Process wificond (pid: 3175, stack limit = 0x00000000053048fb)
[  136.796664] CPU: 3 PID: 3175 Comm: wificond Tainted: G           O      4.19.42-00001-g531a5f5 #1
[  136.805532] Hardware name: Freescale i.MX8MQ EVK (DT)
[  136.810584] pstate: 60400005 (nZCv daif +PAN -UAO)
[  136.815429] pc : brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[  136.821811] lr : brcmf_pno_config_sched_scans+0x67c/0xa80 [brcmfmac]
[  136.828162] sp : ffff00000e9a3880
[  136.831475] x29: ffff00000e9a3890 x28: ffff800020543400
[  136.836786] x27: ffff8000b1008880 x26: ffff0000012bf6a0
[  136.842098] x25: ffff80002054345c x24: ffff800088d22400
[  136.847409] x23: ffff0000012bf638 x22: ffff0000012bf6d8
[  136.852721] x21: ffff8000aced8fc0 x20: ffff8000ac164400
[  136.858032] x19: ffff00000e9a3946 x18: 0000000000000000
[  136.863343] x17: 0000000000000000 x16: 0000000000000000
[  136.868655] x15: ffff0000093f3b37 x14: 0000000000000050
[  136.873966] x13: 0000000000003135 x12: 0000000000000000
[  136.879277] x11: 0000000000000000 x10: ffff000009a61888
[  136.884589] x9 : 000000000000000f x8 : 0000000000000008
[  136.889900] x7 : 303a32303d726464 x6 : ffff00000a1f957d
[  136.895211] x5 : 0000000000000000 x4 : ffff00000e9a3942
[  136.900523] x3 : 0000000000000000 x2 : ffff0000012cead8
[  136.905834] x1 : ffff0000012bf6d8 x0 : 0000000000000000
[  136.911146] Call trace:
[  136.913623]  brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac]
[  136.919658]  brcmf_pno_start_sched_scan+0xa4/0x118 [brcmfmac]
[  136.925430]  brcmf_cfg80211_sched_scan_start+0x80/0xe0 [brcmfmac]
[  136.931636]  nl80211_start_sched_scan+0x140/0x308 [cfg80211]
[  136.937298]  genl_rcv_msg+0x358/0x3f4
[  136.940960]  netlink_rcv_skb+0xb4/0x118
[  136.944795]  genl_rcv+0x34/0x48
[  136.947935]  netlink_unicast+0x264/0x300
[  136.951856]  netlink_sendmsg+0x2e4/0x33c
[  136.955781]  __sys_sendto+0x120/0x19c
---
 .../net/wireless/broadcom/brcm80211/brcmfmac/pno.c   | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c +6 -6
index 14e530601ef3..7ec1630d9095 100644
@@ -154,12 +154,12 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
 	struct brcmf_pno_macaddr_le pfn_mac;
 	u8 *mac_addr = NULL;
 	u8 *mac_mask = NULL;
-	int err, i;
+	int err, i, ri;
 
-	for (i = 0; i < pi->n_reqs; i++)
-		if (pi->reqs[i]->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
-			mac_addr = pi->reqs[i]->mac_addr;
-			mac_mask = pi->reqs[i]->mac_addr_mask;
+	for (ri = 0; ri < pi->n_reqs; ri++)
+		if (pi->reqs[ri]->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+			mac_addr = pi->reqs[ri]->mac_addr;
+			mac_mask = pi->reqs[ri]->mac_addr_mask;
 			break;
 		}
 
@@ -181,7 +181,7 @@ static int brcmf_pno_set_random(struct brcmf_if *ifp, struct brcmf_pno_info *pi)
 	pfn_mac.mac[0] |= 0x02;
 
 	brcmf_dbg(SCAN, "enabling random mac: reqid=%llu mac=%pM\n",
-		  pi->reqs[i]->reqid, pfn_mac.mac);
+		  pi->reqs[ri]->reqid, pfn_mac.mac);
 	err = brcmf_fil_iovar_data_set(ifp, "pfn_macaddr", &pfn_mac,
 				       sizeof(pfn_mac));
 	if (err)
Signature · 1 line
2.35.1
author maintainer
#251 lore raw

PATCH 236/255 HID: roccat: Fix use-after-free in roccat_read()

In reply to Greg Kroah-Hartman

From: Hyunwoo Kim <[email protected]>

[ Upstream commit cacdb14b1c8d3804a3a7d31773bc7569837b71a4 ]

roccat_report_event() is responsible for registering roccat-related reports in struct roccat_device.

int roccat_report_event(int minor, u8 const *data)

{
	struct roccat_device *device;
	struct roccat_reader *reader;
	struct roccat_report *report;
	uint8_t *new_value;

	device = devices[minor];

	new_value = kmemdup(data, device->report_size, GFP_ATOMIC);
	if (!new_value)
		return -ENOMEM;

	report = &device->cbuf[device->cbuf_end];

	/* passing NULL is safe */
	kfree(report->value);
	...

The registered report is stored in the struct roccat_device member "struct roccat_report cbuf[ROCCAT_CBUF_SIZE];".
If more reports are received than the "ROCCAT_CBUF_SIZE" value, kfree() the saved report from cbuf[0] and allocates a new reprot. Since there is no lock when this kfree() is performed, kfree() can be performed even while reading the saved report.

static ssize_t roccat_read(struct file *file, char __user *buffer,
size_t count, loff_t *ppos)

{
	struct roccat_reader *reader = file->private_data;
	struct roccat_device *device = reader->device;
	struct roccat_report *report;
	ssize_t retval = 0, len;
	DECLARE_WAITQUEUE(wait, current);

	mutex_lock(&device->cbuf_lock);

	...

	report = &device->cbuf[reader->cbuf_start];
	/*
	 * If report is larger than requested amount of data, rest of report
	 * is lost!
	 */
	len = device->report_size > count ? count : device->report_size;

	if (copy_to_user(buffer, report->value, len)) {
		retval = -EFAULT;
		goto exit_unlock;
	}
	...

The roccat_read() function receives the device->cbuf report and delivers it to the user through copy_to_user().
If the N+ROCCAT_CBUF_SIZE th report is received while copying of the Nth report->value is in progress, the pointer that copy_to_user() is working on is kfree()ed and UAF read may occur. (race condition)

Since the device node of this driver does not set separate permissions, this is not a security vulnerability, but because it is used for requesting screen display of profile or dpi settings,
a user using the roccat device can apply udev to this device node or There is a possibility to use it by giving.

---
 drivers/hid/hid-roccat.c | 4 ++++
 1 file changed, 4 insertions(+)
drivers/hid/hid-roccat.c +4 -0
index 26373b82fe81..6da80e442fdd 100644
@@ -257,6 +257,8 @@ int roccat_report_event(int minor, u8 const *data)
 	if (!new_value)
 		return -ENOMEM;
 
+	mutex_lock(&device->cbuf_lock);
+
 	report = &device->cbuf[device->cbuf_end];
 
 	/* passing NULL is safe */
@@ -276,6 +278,8 @@ int roccat_report_event(int minor, u8 const *data)
 			reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;
 	}
 
+	mutex_unlock(&device->cbuf_lock);
+
 	wake_up_interruptible(&device->wait);
 	return 0;
 }
Signature · 1 line
2.35.1
author maintainer
#259 lore raw

PATCH 244/255 usb: idmouse: fix an uninit-value in idmouse_open

In reply to Greg Kroah-Hartman

From: Dongliang Mu <[email protected]>

[ Upstream commit bce2b0539933e485d22d6f6f076c0fcd6f185c4c ]

In idmouse_create_image, if any ftip_command fails, it will go to the reset label. However, this leads to the data in bulk_in_buffer[HEADER..IMGSIZE] uninitialized. And the check for valid image incurs an uninitialized dereference.

Fix this by moving the check before reset label since this check only be valid if the data after bulk_in_buffer[HEADER] has concrete data.

Note that this is found by KMSAN, so only kernel compilation is tested.

---
 drivers/usb/misc/idmouse.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
drivers/usb/misc/idmouse.c +4 -4
index bb24527f3c70..ba2b6fbab9b8 100644
@@ -178,10 +178,6 @@ static int idmouse_create_image(struct usb_idmouse *dev)
 		bytes_read += bulk_read;
 	}
 
-	/* reset the device */
-reset:
-	ftip_command(dev, FTIP_RELEASE, 0, 0);
-
 	/* check for valid image */
 	/* right border should be black (0x00) */
 	for (bytes_read = sizeof(HEADER)-1 + WIDTH-1; bytes_read < IMGSIZE; bytes_read += WIDTH)
@@ -193,6 +189,10 @@ static int idmouse_create_image(struct usb_idmouse *dev)
 		if (dev->bulk_in_buffer[bytes_read] != 0xFF)
 			return -EAGAIN;
 
+	/* reset the device */
+reset:
+	ftip_command(dev, FTIP_RELEASE, 0, 0);
+
 	/* should be IMGSIZE == 65040 */
 	dev_dbg(&dev->interface->dev, "read %d bytes fingerprint data\n",
 		bytes_read);
Signature · 1 line
2.35.1
author maintainer
#18 lore raw

PATCH 18/255 can: kvaser_usb_leaf: Fix TX queue out of sync after restart

In reply to Greg Kroah-Hartman

From: Anssi Hannula <[email protected]>

commit 455561fb618fde40558776b5b8435f9420f335db upstream.

The TX queue seems to be implicitly flushed by the hardware during bus-off or bus-off recovery, but the driver does not reset the TX bookkeeping.

Despite not resetting TX bookkeeping the driver still re-enables TX queue unconditionally, leading to "cannot find free context" / NETDEV_TX_BUSY errors if the TX queue was full at bus-off time.

Fix that by resetting TX bookkeeping on CAN restart.

Tested with 0bfd:0124 Kvaser Mini PCI Express 2xHS FW 4.18.778.

---
 drivers/net/can/usb/kvaser_usb/kvaser_usb.h      |    2 ++
 drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c |    2 +-
 drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c |    2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)
drivers/net/can/usb/kvaser_usb/kvaser_usb.h +2 -0
@@ -178,6 +178,8 @@ struct kvaser_usb_dev_cfg {
 extern const struct kvaser_usb_dev_ops kvaser_usb_hydra_dev_ops;
 extern const struct kvaser_usb_dev_ops kvaser_usb_leaf_dev_ops;
 
+void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv);
+
 int kvaser_usb_recv_cmd(const struct kvaser_usb *dev, void *cmd, int len,
 			int *actual_len);
 
drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c +1 -1
@@ -453,7 +453,7 @@ static void kvaser_usb_reset_tx_urb_cont
 /* This method might sleep. Do not call it in the atomic context
  * of URB completions.
  */
-static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
+void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
 {
 	usb_kill_anchored_urbs(&priv->tx_submitted);
 	kvaser_usb_reset_tx_urb_contexts(priv);
drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +2 -0
@@ -1430,6 +1430,8 @@ static int kvaser_usb_leaf_set_mode(stru
 
 	switch (mode) {
 	case CAN_MODE_START:
+		kvaser_usb_unlink_tx_urbs(priv);
+
 		err = kvaser_usb_leaf_simple_cmd_async(priv, CMD_START_CHIP);
 		if (err)
 			return err;
author maintainer
#207 lore raw

PATCH 194/255 openvswitch: Fix overreporting of drops in dropwatch

In reply to Greg Kroah-Hartman

From: Mike Pattrick <[email protected]>

[ Upstream commit c21ab2afa2c64896a7f0e3cbc6845ec63dcfad2e ]

Currently queue_userspace_packet will call kfree_skb for all frames, whether or not an error occurred. This can result in a single dropped frame being reported as multiple drops in dropwatch. This functions caller may also call kfree_skb in case of an error. This patch will consume the skbs instead and allow caller's to use kfree_skb.

---
 net/openvswitch/datapath.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
net/openvswitch/datapath.c +3 -2
index 63f36d6cd3f6..41035ce0d23c 100644
@@ -532,8 +532,9 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 out:
 	if (err)
 		skb_tx_error(skb);
-	kfree_skb(user_skb);
-	kfree_skb(nskb);
+	consume_skb(user_skb);
+	consume_skb(nskb);
+
 	return err;
 }
 
Signature · 1 line
2.35.1
author maintainer
#238 lore raw

PATCH 223/255 ARM: dts: imx6sl: add missing properties for sram

In reply to Greg Kroah-Hartman

From: Alexander Stein <[email protected]>

[ Upstream commit 60c9213a1d9941a8b33db570796c3f9be8984974 ]

All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property sram@900000: '#size-cells' is a required property sram@900000: 'ranges' is a required property

---
 arch/arm/boot/dts/imx6sl.dtsi | 3 +++
 1 file changed, 3 insertions(+)
arch/arm/boot/dts/imx6sl.dtsi +3 -0
index 540880f0413f..852f66944c7d 100644
@@ -121,6 +121,9 @@
 		ocram: sram@900000 {
 			compatible = "mmio-sram";
 			reg = <0x00900000 0x20000>;
+			ranges = <0 0x00900000 0x20000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&clks IMX6SL_CLK_OCRAM>;
 		};
 
Signature · 1 line
2.35.1
author maintainer
#262 lore raw

PATCH 247/255 io_uring/af_unix: defer registered files gc to io_uring release

In reply to Greg Kroah-Hartman

From: Pavel Begunkov <[email protected]>

[ upstream commit 0091bfc81741b8d3aeb3b7ab8636f911b2de6e80 ]

Instead of putting io_uring's registered files in unix_gc() we want it to be done by io_uring itself. The trick here is to consider io_uring registered files for cycle detection but not actually putting them down. Because io_uring can't register other ring instances, this will remove all refs to the ring file triggering the ->release path and clean up with io_ring_ctx_free().

Fixes 6b06314c47e1 ("io_uring: add file set registration")
Reported-and-tested-by David Bouman <[email protected]>
[axboe: add kerneldoc comment to skb, fold in skb leak fix]
---
 fs/io_uring.c          |    1 +
 include/linux/skbuff.h |    2 ++
 net/unix/garbage.c     |   20 ++++++++++++++++++++
 3 files changed, 23 insertions(+)
fs/io_uring.c +1 -0
@@ -3172,6 +3172,7 @@ static int __io_sqe_files_scm(struct io_
 	}
 
 	skb->sk = sk;
+	skb->scm_io_uring = 1;
 	skb->destructor = io_destruct_skb;
 
 	fpl->user = get_uid(ctx->user);
include/linux/skbuff.h +2 -0
@@ -659,6 +659,7 @@ typedef unsigned char *sk_buff_data_t;
  *	@wifi_acked: whether frame was acked on wifi or not
  *	@no_fcs:  Request NIC to treat last 4 bytes as Ethernet FCS
  *	@csum_not_inet: use CRC32c to resolve CHECKSUM_PARTIAL
+ *	@scm_io_uring: SKB holds io_uring registered files
  *	@dst_pending_confirm: need to confirm neighbour
  *	@decrypted: Decrypted SKB
  *	@napi_id: id of the NAPI struct this skb came from
@@ -824,6 +825,7 @@ struct sk_buff {
 #ifdef CONFIG_TLS_DEVICE
 	__u8			decrypted:1;
 #endif
+	__u8			scm_io_uring:1;
 
 #ifdef CONFIG_NET_SCHED
 	__u16			tc_index;	/* traffic control index */
net/unix/garbage.c +20 -0
@@ -204,6 +204,7 @@ void wait_for_unix_gc(void)
 /* The external entry point: unix_gc() */
 void unix_gc(void)
 {
+	struct sk_buff *next_skb, *skb;
 	struct unix_sock *u;
 	struct unix_sock *next;
 	struct sk_buff_head hitlist;
@@ -297,11 +298,30 @@ void unix_gc(void)
 
 	spin_unlock(&unix_gc_lock);
 
+	/* We need io_uring to clean its registered files, ignore all io_uring
+	 * originated skbs. It's fine as io_uring doesn't keep references to
+	 * other io_uring instances and so killing all other files in the cycle
+	 * will put all io_uring references forcing it to go through normal
+	 * release.path eventually putting registered files.
+	 */
+	skb_queue_walk_safe(&hitlist, skb, next_skb) {
+		if (skb->scm_io_uring) {
+			__skb_unlink(skb, &hitlist);
+			skb_queue_tail(&skb->sk->sk_receive_queue, skb);
+		}
+	}
+
 	/* Here we are. Hitlist is filled. Die. */
 	__skb_queue_purge(&hitlist);
 
 	spin_lock(&unix_gc_lock);
 
+	/* There could be io_uring registered files, just push them back to
+	 * the inflight list
+	 */
+	list_for_each_entry_safe(u, next, &gc_candidates, link)
+		list_move_tail(&u->link, &gc_inflight_list);
+
 	/* All candidates should have been detached by now. */
 	BUG_ON(!list_empty(&gc_candidates));
 
author maintainer
#272 lore raw

PATCH 255/255 thermal: intel_powerclamp: Use first online CPU as control_cpu

In reply to Greg Kroah-Hartman

From: Rafael J. Wysocki <[email protected]>

commit 4bb7f6c2781e46fc5bd00475a66df2ea30ef330d upstream.

Commit 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash") fixed an issue related to using smp_processor_id() in preemptible context by replacing it with a pair of get_cpu()/put_cpu(), but what is needed there really is any online CPU and not necessarily the one currently running the code. Arguably, getting the one that's running the code in there is confusing.

For this reason, simply give the control CPU role to the first online one which automatically will be CPU0 if it is online, so one check can be dropped from the code for an added benefit.

Fixes 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash")
---
 drivers/thermal/intel/intel_powerclamp.c |    6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
drivers/thermal/intel/intel_powerclamp.c +1 -5
@@ -534,11 +534,7 @@ static int start_power_clamp(void)
 	get_online_cpus();
 
 	/* prefer BSP */
-	control_cpu = 0;
-	if (!cpu_online(control_cpu)) {
-		control_cpu = get_cpu();
-		put_cpu();
-	}
+	control_cpu = cpumask_first(cpu_online_mask);
 
 	clamping = true;
 	schedule_delayed_work(&poll_pkg_cstate_work, 0);
author maintainer
#266 lore raw

PATCH 250/255 net/ieee802154: dont warn zero-sized raw_sendmsg()

In reply to Greg Kroah-Hartman

From: Tetsuo Handa <[email protected]>

[ Upstream commit b12e924a2f5b960373459c8f8a514f887adf5cac ]

syzbot is hitting skb_assert_len() warning at __dev_queue_xmit() [1], for PF_IEEE802154 socket's zero-sized raw_sendmsg() request is hitting __dev_queue_xmit() with skb->len == 0.

Since PF_IEEE802154 socket's zero-sized raw_sendmsg() request was able to return 0, don't call __dev_queue_xmit() if packet length is 0.

  ----------
  #include <sys/socket.h>
  #include <netinet/in.h>

  int main(int argc, char *argv[])
  {
    struct sockaddr_in addr = { .sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK) };
    struct iovec iov = { };
    struct msghdr hdr = { .msg_name = &addr, .msg_namelen = sizeof(addr), .msg_iov = &iov, .msg_iovlen = 1 };
    sendmsg(socket(PF_IEEE802154, SOCK_RAW, 0), &hdr, 0);
    return 0;
  }
  ----------

Note that this might be a sign that commit fd1894224407c484 ("bpf: Don't redirect packets with invalid pkt_len") should be reverted, for skb->len == 0 was acceptable for at least PF_IEEE802154 socket.

---
 net/ieee802154/socket.c | 4 ++++
 1 file changed, 4 insertions(+)
net/ieee802154/socket.c +4 -0
index a92b11999e5f..6d6c28581770 100644
@@ -273,6 +273,10 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 		err = -EMSGSIZE;
 		goto out_dev;
 	}
+	if (!size) {
+		err = 0;
+		goto out_dev;
+	}
 
 	hlen = LL_RESERVED_SPACE(dev);
 	tlen = dev->needed_tailroom;
Signature · 1 line
2.35.1
author maintainer
#269 lore raw

PATCH 253/255 efi: libstub: drop pointless get_memory_map() call

In reply to Greg Kroah-Hartman

From: Ard Biesheuvel <[email protected]>

commit d80ca810f096ff66f451e7a3ed2f0cd9ef1ff519 upstream.

Currently, the non-x86 stub code calls get_memory_map() redundantly, given that the data it returns is never used anywhere. So drop the call.

Cc <[email protected]> # v4.14+
Fixes 24d7c494ce46 ("efi/arm-stub: Round up FDT allocation to mapping size")
---
 drivers/firmware/efi/libstub/fdt.c |    8 --------
 1 file changed, 8 deletions(-)
drivers/firmware/efi/libstub/fdt.c +0 -8
@@ -291,14 +291,6 @@ efi_status_t allocate_new_fdt_and_exit_b
 		goto fail;
 	}
 
-	/*
-	 * Now that we have done our final memory allocation (and free)
-	 * we can get the memory map key needed for exit_boot_services().
-	 */
-	status = efi_get_memory_map(sys_table, &map);
-	if (status != EFI_SUCCESS)
-		goto fail_free_new_fdt;
-
 	status = update_fdt(sys_table, (void *)fdt_addr, fdt_size,
 			    (void *)*new_fdt_addr, MAX_FDT_SIZE, cmdline_ptr,
 			    initrd_addr, initrd_size);
author maintainer
#255 lore raw

PATCH 240/255 Revert "usb: storage: Add quirk for Samsung Fit flash"

In reply to Greg Kroah-Hartman

From: sunghwan jung <[email protected]>

[ Upstream commit ad5dbfc123e6ffbbde194e2a4603323e09f741ee ]

This reverts commit 86d92f5465958752481269348d474414dccb1552, which fix the timeout issue for "Samsung Fit Flash".

But the commit affects not only "Samsung Fit Flash" but also other usb storages that use the same controller and causes severe performance regression.

 # hdparm -t /dev/sda (without the quirk)
 Timing buffered disk reads: 622 MB in  3.01 seconds = 206.66 MB/sec
 # hdparm -t /dev/sda (with the quirk)
 Timing buffered disk reads: 220 MB in  3.00 seconds =  73.32 MB/sec

The commit author mentioned that "Issue was reproduced after device has bad block", so this quirk should be applied when we have the timeout issue with a device that has bad blocks.

We revert the commit so that we apply this quirk by adding kernel paramters using a bootloader or other ways when we really need it, without the performance regression with devices that don't have the issue.

---
 drivers/usb/storage/unusual_devs.h | 6 ------
 1 file changed, 6 deletions(-)
drivers/usb/storage/unusual_devs.h +0 -6
index 6a59950a63a0..b270be141b8e 100644
@@ -1275,12 +1275,6 @@ UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999,
 		USB_SC_RBC, USB_PR_BULK, NULL,
 		0 ),
 
-UNUSUAL_DEV(0x090c, 0x1000, 0x1100, 0x1100,
-		"Samsung",
-		"Flash Drive FIT",
-		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
-		US_FL_MAX_SECTORS_64),
-
 /* aeb */
 UNUSUAL_DEV( 0x090c, 0x1132, 0x0000, 0xffff,
 		"Feiya",
Signature · 1 line
2.35.1
author maintainer
#152 lore raw

PATCH 139/255 mtd: devices: docg3: check the return value of devm_ioremap() in the probe

In reply to Greg Kroah-Hartman

From: William Dean <[email protected]>

[ Upstream commit 26e784433e6c65735cd6d93a8db52531970d9a60 ]

The function devm_ioremap() in docg3_probe() can fail, so its return value should be checked.

---
 drivers/mtd/devices/docg3.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/mtd/devices/docg3.c +6 -1
index eb0f4600efd1..40f9b6dffe3d 100644
@@ -1975,9 +1975,14 @@ static int __init docg3_probe(struct platform_device *pdev)
 		dev_err(dev, "No I/O memory resource defined\n");
 		return ret;
 	}
-	base = devm_ioremap(dev, ress->start, DOC_IOSPACE_SIZE);
 
 	ret = -ENOMEM;
+	base = devm_ioremap(dev, ress->start, DOC_IOSPACE_SIZE);
+	if (!base) {
+		dev_err(dev, "devm_ioremap dev failed\n");
+		return ret;
+	}
+
 	cascade = devm_kcalloc(dev, DOC_MAX_NBFLOORS, sizeof(*cascade),
 			       GFP_KERNEL);
 	if (!cascade)
Signature · 1 line
2.35.1
author maintainer
#105 lore raw

PATCH 92/255 platform/x86: msi-laptop: Fix old-ec check for backlight registering

In reply to Greg Kroah-Hartman

From: Hans de Goede <[email protected]>

[ Upstream commit 83ac7a1c2ed5f17caa07cbbc84bad3c05dc3bf22 ]

Commit 2cc6c717799f ("msi-laptop: Port to new backlight interface selection API") replaced this check:

	if (!quirks->old_ec_model || acpi_video_backlight_support())
		pr_info("Brightness ignored, ...");
	else
		do_register();

With:

	if (quirks->old_ec_model ||
	    acpi_video_get_backlight_type() == acpi_backlight_vendor)
		do_register();

But since the do_register() part was part of the else branch, the entire condition should be inverted. So not only the 2 statements on either side of the || should be inverted, but the || itself should be replaced with a &&.

In practice this has likely not been an issue because the new-ec models (old_ec_model==false) likely all support ACPI video backlight control, making acpi_video_get_backlight_type() return acpi_backlight_video turning the second part of the || also false when old_ec_model == false.

Fixes 2cc6c717799f ("msi-laptop: Port to new backlight interface selection API")
---
 drivers/platform/x86/msi-laptop.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
drivers/platform/x86/msi-laptop.c +1 -2
index 24ffc8e2d2d1..0960205ee49f 100644
@@ -1048,8 +1048,7 @@ static int __init msi_init(void)
 		return -EINVAL;
 
 	/* Register backlight stuff */
-
-	if (quirks->old_ec_model ||
+	if (quirks->old_ec_model &&
 	    acpi_video_get_backlight_type() == acpi_backlight_vendor) {
 		struct backlight_properties props;
 		memset(&props, 0, sizeof(struct backlight_properties));
Signature · 1 line
2.35.1
author maintainer
#224 lore raw

PATCH 209/255 r8152: Rate limit overflow messages

In reply to Greg Kroah-Hartman

From: Andrew Gaul <[email protected]>

[ Upstream commit 93e2be344a7db169b7119de21ac1bf253b8c6907 ]

My system shows almost 10 million of these messages over a 24-hour period which pollutes my logs.

---
 drivers/net/usb/r8152.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/net/usb/r8152.c +3 -1
index 9042db982a08..dafdae6536a3 100644
@@ -1479,7 +1479,9 @@ static void intr_callback(struct urb *urb)
 			   "Stop submitting intr, status %d\n", status);
 		return;
 	case -EOVERFLOW:
-		netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n");
+		if (net_ratelimit())
+			netif_info(tp, intr, tp->netdev,
+				   "intr status -EOVERFLOW\n");
 		goto resubmit;
 	/* -EPIPE:  should clear the halt */
 	default:
Signature · 1 line
2.35.1
author maintainer
#69 lore raw

PATCH 69/255 spi: qup: add missing clk_disable_unprepare on error in spi_qup_pm_resume_runtime()

In reply to Greg Kroah-Hartman

From: Xu Qiang <[email protected]>

[ Upstream commit 494a22765ce479c9f8ad181c5d24cffda9f534bb ]

Add the missing clk_disable_unprepare() before return from spi_qup_pm_resume_runtime() in the error handling case.

Fixes dae1a7700b34 (“spi: qup: Handle clocks in pm_runtime suspend and resume”)
---
 drivers/spi/spi-qup.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/spi/spi-qup.c +3 -1
index 6da49705a10a..ead6c211047d 100644
@@ -1199,8 +1199,10 @@ static int spi_qup_pm_resume_runtime(struct device *device)
 		return ret;
 
 	ret = clk_prepare_enable(controller->cclk);
-	if (ret)
+	if (ret) {
+		clk_disable_unprepare(controller->iclk);
 		return ret;
+	}
 
 	/* Disable clocks auto gaiting */
 	config = readl_relaxed(controller->base + QUP_CONFIG);
Signature · 1 line
2.35.1
author maintainer
#150 lore raw

PATCH 137/255 dyndbg: fix module.dyndbg handling

In reply to Greg Kroah-Hartman

From: Jim Cromie <[email protected]>

[ Upstream commit 85d6b66d31c35158364058ee98fb69ab5bb6a6b1 ]

For CONFIG_DYNAMIC_DEBUG=N, the ddebug_dyndbg_module_param_cb() stub-fn is too permissive:

bash-5.1# modprobe drm JUNKdyndbg
bash-5.1# modprobe drm dyndbgJUNK

[   42.933220] dyndbg param is supported only in CONFIG_DYNAMIC_DEBUG builds
[   42.937484] ACPI: bus type drm_connector registered

This caused no ill effects, because unknown parameters are either ignored by default with an "unknown parameter" warning, or ignored because dyndbg allows its no-effect use on non-dyndbg builds.

But since the code has an explicit feedback message, it should be issued accurately. Fix with strcmp for exact param-name match.

---
 include/linux/dynamic_debug.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
include/linux/dynamic_debug.h +1 -1
index 4cf02ecd67de..65575143c89f 100644
@@ -191,7 +191,7 @@ static inline int ddebug_remove_module(const char *mod)
 static inline int ddebug_dyndbg_module_param_cb(char *param, char *val,
 						const char *modname)
 {
-	if (strstr(param, "dyndbg")) {
+	if (!strcmp(param, "dyndbg")) {
 		/* avoid pr_warn(), which wants pr_fmt() fully defined */
 		printk(KERN_WARNING "dyndbg param is supported only in "
 			"CONFIG_DYNAMIC_DEBUG builds\n");
Signature · 1 line
2.35.1
author maintainer
#154 lore raw

PATCH 141/255 ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting()

In reply to Greg Kroah-Hartman

From: Niklas Cassel <[email protected]>

[ Upstream commit 690aa8c3ae308bc696ec8b1b357b995193927083 ]

ACS-5 section
7.13.6.41 Words 85..87, 120: Commands and feature sets supported or enabled states that:

If bit 15 of word 86 is set to one, bit 14 of word 119 is set to one, and bit 15 of word 119 is cleared to zero, then word 119 is valid.

If bit 15 of word 86 is set to one, bit 14 of word 120 is set to one, and bit 15 of word 120 is cleared to zero, then word 120 is valid.

(This text also exists in really old ACS standards, e.g. ACS-3.)

Currently, ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting() both check bit 15 of word 86, but neither of them check that bit 14 of word 119 is set to one, or that bit 15 of word 119 is cleared to zero.

Additionally, make ata_id_sense_reporting_enabled() return false if !ata_id_has_sense_reporting(), similar to how e.g. ata_id_flush_ext_enabled() returns false if !ata_id_has_flush_ext().

Fixes e87fd28cf9a2 ("libata: Implement support for sense data reporting")
---
 include/linux/ata.h | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)
include/linux/ata.h +9 -4
index 6e67aded28f8..734cc646ce35 100644
@@ -770,16 +770,21 @@ static inline bool ata_id_has_read_log_dma_ext(const u16 *id)
 
 static inline bool ata_id_has_sense_reporting(const u16 *id)
 {
-	if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+	if (!(id[ATA_ID_CFS_ENABLE_2] & BIT(15)))
+		return false;
+	if ((id[ATA_ID_COMMAND_SET_3] & (BIT(15) | BIT(14))) != BIT(14))
 		return false;
-	return id[ATA_ID_COMMAND_SET_3] & (1 << 6);
+	return id[ATA_ID_COMMAND_SET_3] & BIT(6);
 }
 
 static inline bool ata_id_sense_reporting_enabled(const u16 *id)
 {
-	if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+	if (!ata_id_has_sense_reporting(id))
+		return false;
+	/* ata_id_has_sense_reporting() == true, word 86 must have bit 15 set */
+	if ((id[ATA_ID_COMMAND_SET_4] & (BIT(15) | BIT(14))) != BIT(14))
 		return false;
-	return id[ATA_ID_COMMAND_SET_4] & (1 << 6);
+	return id[ATA_ID_COMMAND_SET_4] & BIT(6);
 }
 
 /**
Signature · 1 line
2.35.1
author maintainer
#12 lore raw

PATCH 12/255 iio: dac: ad5593r: Fix i2c read protocol requirements

In reply to Greg Kroah-Hartman

From: Michael Hennerich <[email protected]>

commit 558a25f903b4af6361b7fbeea08a6446a0745653 upstream.

For reliable operation across the full range of supported interface rates, the AD5593R needs a STOP condition between address write, and data read (like show in the datasheet Figure 40) so in turn i2c_smbus_read_word_swapped cannot be used.

While at it, a simple helper was added to make the code simpler.

Fixes 56ca9db862bf ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs")
---
 drivers/iio/dac/ad5593r.c |   46 +++++++++++++++++++++++++++-------------------
 1 file changed, 27 insertions(+), 19 deletions(-)
drivers/iio/dac/ad5593r.c +27 -19
@@ -14,6 +14,8 @@
 #include <linux/of.h>
 #include <linux/acpi.h>
 
+#include <asm/unaligned.h>
+
 #define AD5593R_MODE_CONF		(0 << 4)
 #define AD5593R_MODE_DAC_WRITE		(1 << 4)
 #define AD5593R_MODE_ADC_READBACK	(4 << 4)
@@ -21,6 +23,24 @@
 #define AD5593R_MODE_GPIO_READBACK	(6 << 4)
 #define AD5593R_MODE_REG_READBACK	(7 << 4)
 
+static int ad5593r_read_word(struct i2c_client *i2c, u8 reg, u16 *value)
+{
+	int ret;
+	u8 buf[2];
+
+	ret = i2c_smbus_write_byte(i2c, reg);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_master_recv(i2c, buf, sizeof(buf));
+	if (ret < 0)
+		return ret;
+
+	*value = get_unaligned_be16(buf);
+
+	return 0;
+}
+
 static int ad5593r_write_dac(struct ad5592r_state *st, unsigned chan, u16 value)
 {
 	struct i2c_client *i2c = to_i2c_client(st->dev);
@@ -39,13 +59,7 @@ static int ad5593r_read_adc(struct ad559
 	if (val < 0)
 		return (int) val;
 
-	val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_ADC_READBACK);
-	if (val < 0)
-		return (int) val;
-
-	*value = (u16) val;
-
-	return 0;
+	return ad5593r_read_word(i2c, AD5593R_MODE_ADC_READBACK, value);
 }
 
 static int ad5593r_reg_write(struct ad5592r_state *st, u8 reg, u16 value)
@@ -59,25 +73,19 @@ static int ad5593r_reg_write(struct ad55
 static int ad5593r_reg_read(struct ad5592r_state *st, u8 reg, u16 *value)
 {
 	struct i2c_client *i2c = to_i2c_client(st->dev);
-	s32 val;
-
-	val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_REG_READBACK | reg);
-	if (val < 0)
-		return (int) val;
 
-	*value = (u16) val;
-
-	return 0;
+	return ad5593r_read_word(i2c, AD5593R_MODE_REG_READBACK | reg, value);
 }
 
 static int ad5593r_gpio_read(struct ad5592r_state *st, u8 *value)
 {
 	struct i2c_client *i2c = to_i2c_client(st->dev);
-	s32 val;
+	u16 val;
+	int ret;
 
-	val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_GPIO_READBACK);
-	if (val < 0)
-		return (int) val;
+	ret = ad5593r_read_word(i2c, AD5593R_MODE_GPIO_READBACK, &val);
+	if (ret)
+		return ret;
 
 	*value = (u8) val;
 
author maintainer
#239 lore raw

PATCH 224/255 ARM: dts: imx6sll: add missing properties for sram

In reply to Greg Kroah-Hartman

From: Alexander Stein <[email protected]>

[ Upstream commit 7492a83ed9b7a151e2dd11d64b06da7a7f0fa7f9 ]

All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property sram@900000: '#size-cells' is a required property sram@900000: 'ranges' is a required property

---
 arch/arm/boot/dts/imx6sll.dtsi | 3 +++
 1 file changed, 3 insertions(+)
arch/arm/boot/dts/imx6sll.dtsi +3 -0
index 13c7ba7fa6bc..39500b84673b 100644
@@ -123,6 +123,9 @@
 		ocram: sram@900000 {
 			compatible = "mmio-sram";
 			reg = <0x00900000 0x20000>;
+			ranges = <0 0x00900000 0x20000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 		};
 
 		intc: interrupt-controller@a01000 {
Signature · 1 line
2.35.1
author maintainer
#151 lore raw

PATCH 138/255 dyndbg: let query-modname override actual module name

In reply to Greg Kroah-Hartman

From: Jim Cromie <[email protected]>

[ Upstream commit e75ef56f74965f426dd819a41336b640ffdd8fbc ]

dyndbg's control-parser: ddebug_parse_query(), requires that search
terms: module, func, file, lineno, are used only once in a query; a thing cannot be named both foo and bar.

The cited commit added an overriding module modname, taken from the module loader, which is authoritative. So it set query.module 1st, which disallowed its use in the query-string.

But now, its useful to allow a module-load to enable classes across a whole (or part of) a subsystem at once.

  # enable (dynamic-debug in) drm only
  modprobe drm dyndbg="class DRM_UT_CORE +p"
  # get drm_helper too
  modprobe drm dyndbg="class DRM_UT_CORE module drm* +p"
  # get everything that knows DRM_UT_CORE
  modprobe drm dyndbg="class DRM_UT_CORE module * +p"
  # also for boot-args:
  drm.dyndbg="class DRM_UT_CORE module * +p"

So convert the override into a default, by filling it only when/after the query-string omitted the module.

NB: the query class FOO handling is forthcoming.

---
 lib/dynamic_debug.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)
lib/dynamic_debug.c +7 -4
index ccf05719b1ad..c9e1960fefc8 100644
@@ -329,10 +329,6 @@ static int ddebug_parse_query(char *words[], int nwords,
 	}
 	memset(query, 0, sizeof(*query));
 
-	if (modname)
-		/* support $modname.dyndbg=<multiple queries> */
-		query->module = modname;
-
 	for (i = 0; i < nwords; i += 2) {
 		if (!strcmp(words[i], "func")) {
 			rc = check_set(&query->function, words[i+1], "func");
@@ -381,6 +377,13 @@ static int ddebug_parse_query(char *words[], int nwords,
 		if (rc)
 			return rc;
 	}
+	if (!query->module && modname)
+		/*
+		 * support $modname.dyndbg=<multiple queries>, when
+		 * not given in the query itself
+		 */
+		query->module = modname;
+
 	vpr_info_dq(query, "parsed");
 	return 0;
 }
Signature · 1 line
2.35.1
author maintainer
#148 lore raw

PATCH 135/255 RDMA/rxe: Fix the error caused by qp->sk

In reply to Greg Kroah-Hartman

From: Zhu Yanjun <[email protected]>

[ Upstream commit 548ce2e66725dcba4e27d1e8ac468d5dd17fd509 ]

When sock_create_kern in the function rxe_qp_init_req fails, qp->sk is set to NULL.

Then the function rxe_create_qp will call rxe_qp_do_cleanup to handle allocated resource.

Before handling qp->sk, this variable should be checked.

---
 drivers/infiniband/sw/rxe/rxe_qp.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/infiniband/sw/rxe/rxe_qp.c +4 -2
index be3eff792864..89f6d54a4312 100644
@@ -847,8 +847,10 @@ static void rxe_qp_do_cleanup(struct work_struct *work)
 
 	free_rd_atomic_resources(qp);
 
-	kernel_sock_shutdown(qp->sk, SHUT_RDWR);
-	sock_release(qp->sk);
+	if (qp->sk) {
+		kernel_sock_shutdown(qp->sk, SHUT_RDWR);
+		sock_release(qp->sk);
+	}
 }
 
 /* called when the last reference to the qp is dropped */
Signature · 1 line
2.35.1
author maintainer
#155 lore raw

PATCH 142/255 ata: fix ata_id_has_devslp()

In reply to Greg Kroah-Hartman

From: Niklas Cassel <[email protected]>

[ Upstream commit 9c6e09a434e1317e09b78b3b69cd384022ec9a03 ]

ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:

If word 76 is not 0000h or FFFFh, word 78 reports the features supported by the device. If this word is not supported, the word shall be cleared to zero.

(This text also exists in really old ACS standards, e.g. ACS-3.)

Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros (which already have this check), thus making it more likely that the next ATA_ID_FEATURE_SUPP macro that is added will include this check.

Fixes 65fe1f0f66a5 ("ahci: implement aggressive SATA device sleep support")
---
 include/linux/ata.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
include/linux/ata.h +4 -1
index 734cc646ce35..8b884cd3a232 100644
@@ -565,6 +565,10 @@ struct ata_bmdma_prd {
 	((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
 	  ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
 	 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 2)))
+#define ata_id_has_devslp(id)	\
+	((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
+	  ((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
+	 ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)))
 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
 #define ata_id_u32(id,n)	\
@@ -577,7 +581,6 @@ struct ata_bmdma_prd {
 
 #define ata_id_cdb_intr(id)	(((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
 #define ata_id_has_da(id)	((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
-#define ata_id_has_devslp(id)	((id)[ATA_ID_FEATURE_SUPP] & (1 << 8))
 #define ata_id_has_ncq_autosense(id) \
 				((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))
 
Signature · 1 line
2.35.1
author maintainer
#29 lore raw

PATCH 29/255 riscv: Allow PROT_WRITE-only mmap()

In reply to Greg Kroah-Hartman

From: Andrew Bresticker <[email protected]>

commit 9e2e6042a7ec6504fe8e366717afa2f40cf16488 upstream.

Commit 2139619bcad7 ("riscv: mmap with PROT_WRITE but no PROT_READ is invalid") made mmap() return EINVAL if PROT_WRITE was set wihtout PROT_READ with the justification that a write-only PTE is considered a reserved PTE permission bit pattern in the privileged spec. This check is unnecessary since we let VM_WRITE imply VM_READ on RISC-V, and it is inconsistent with other architectures that don't support write-only PTEs, creating a potential software portability issue. Just remove the check altogether and let PROT_WRITE imply PROT_READ as is the case on other architectures.

Note that this also allows PROT_WRITE|PROT_EXEC mappings which were disallowed prior to the aforementioned commit; PROT_READ is implied in such mappings as well.

---
 arch/riscv/kernel/sys_riscv.c |    3 ---
 1 file changed, 3 deletions(-)
arch/riscv/kernel/sys_riscv.c +0 -3
@@ -18,9 +18,6 @@ static long riscv_sys_mmap(unsigned long
 	if (unlikely(offset & (~PAGE_MASK >> page_shift_offset)))
 		return -EINVAL;
 
-	if (unlikely((prot & PROT_WRITE) && !(prot & PROT_READ)))
-		return -EINVAL;
-
 	return ksys_mmap_pgoff(addr, len, prot, flags, fd,
 			       offset >> (PAGE_SHIFT - page_shift_offset));
 }
author maintainer
#246 lore raw

PATCH 231/255 nbd: Fix hung when signal interrupts nbd_start_device_ioctl()

In reply to Greg Kroah-Hartman

From: Shigeru Yoshida <[email protected]>

[ Upstream commit 1de7c3cf48fc41cd95adb12bd1ea9033a917798a ]

syzbot reported hung task [1]. The following program is a simplified version of the reproducer:

int main(void)

{
	int sv[2], fd;

	if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) < 0)
		return 1;
	if ((fd = open("/dev/nbd0", 0)) < 0)
		return 1;
	if (ioctl(fd, NBD_SET_SIZE_BLOCKS, 0x81) < 0)
		return 1;
	if (ioctl(fd, NBD_SET_SOCK, sv[0]) < 0)
		return 1;
	if (ioctl(fd, NBD_DO_IT) < 0)
		return 1;
	return 0;
}

When signal interrupt nbd_start_device_ioctl() waiting the condition atomic_read(&config->recv_threads) == 0, the task can hung because it waits the completion of the inflight IOs.

This patch fixes the issue by clearing queue, not just shutdown, when signal interrupt nbd_start_device_ioctl().

---
 drivers/block/nbd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
drivers/block/nbd.c +4 -2
index 09323b0510f0..610dc6a36a9d 100644
@@ -1327,10 +1327,12 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b
 	mutex_unlock(&nbd->config_lock);
 	ret = wait_event_interruptible(config->recv_wq,
 					 atomic_read(&config->recv_threads) == 0);
-	if (ret)
+	if (ret) {
 		sock_shutdown(nbd);
-	flush_workqueue(nbd->recv_workq);
+		nbd_clear_que(nbd);
+	}
 
+	flush_workqueue(nbd->recv_workq);
 	mutex_lock(&nbd->config_lock);
 	nbd_bdev_reset(bdev);
 	/* user requested, ignore socket errors */
Signature · 1 line
2.35.1
author maintainer
#256 lore raw

PATCH 241/255 staging: rtl8723bs: fix a potential memory leak in rtw_init_cmd_priv()

In reply to Greg Kroah-Hartman

From: Xiaoke Wang <[email protected]>

[ Upstream commit 708056fba733a73d926772ea4ce9a42d240345da ]

In rtw_init_cmd_priv(), if pcmdpriv->rsp_allocated_buf is allocated in failure, then pcmdpriv->cmd_allocated_buf will be not properly released. Besides, considering there are only two error paths and the first one can directly return, so we do not need implicitly jump to the exit tag to execute the error handler.

So this patch added kfree(pcmdpriv->cmd_allocated_buf); on the error path to release the resource and simplified the return logic of rtw_init_cmd_priv(). As there is no proper device to test with, no runtime testing was performed.

---
 drivers/staging/rtl8723bs/core/rtw_cmd.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)
drivers/staging/rtl8723bs/core/rtw_cmd.c +6 -10
index 8d93c2f26890..a82114de21a7 100644
@@ -165,8 +165,6 @@ No irqsave is necessary.
 
 int rtw_init_cmd_priv(struct	cmd_priv *pcmdpriv)
 {
-	int res = 0;
-
 	init_completion(&pcmdpriv->cmd_queue_comp);
 	init_completion(&pcmdpriv->terminate_cmdthread_comp);
 
@@ -178,18 +176,16 @@ int rtw_init_cmd_priv(struct	cmd_priv *pcmdpriv)
 
 	pcmdpriv->cmd_allocated_buf = rtw_zmalloc(MAX_CMDSZ + CMDBUFF_ALIGN_SZ);
 
-	if (!pcmdpriv->cmd_allocated_buf) {
-		res = -ENOMEM;
-		goto exit;
-	}
+	if (!pcmdpriv->cmd_allocated_buf)
+		return -ENOMEM;
 
 	pcmdpriv->cmd_buf = pcmdpriv->cmd_allocated_buf  +  CMDBUFF_ALIGN_SZ - ((SIZE_PTR)(pcmdpriv->cmd_allocated_buf) & (CMDBUFF_ALIGN_SZ-1));
 
 	pcmdpriv->rsp_allocated_buf = rtw_zmalloc(MAX_RSPSZ + 4);
 
 	if (!pcmdpriv->rsp_allocated_buf) {
-		res = -ENOMEM;
-		goto exit;
+		kfree(pcmdpriv->cmd_allocated_buf);
+		return -ENOMEM;
 	}
 
 	pcmdpriv->rsp_buf = pcmdpriv->rsp_allocated_buf  +  4 - ((SIZE_PTR)(pcmdpriv->rsp_allocated_buf) & 3);
@@ -197,8 +193,8 @@ int rtw_init_cmd_priv(struct	cmd_priv *pcmdpriv)
 	pcmdpriv->cmd_issued_cnt = pcmdpriv->cmd_done_cnt = pcmdpriv->rsp_cnt = 0;
 
 	mutex_init(&pcmdpriv->sctx_mutex);
-exit:
-	return res;
+
+	return 0;
 }
 
 static void c2h_wk_callback(_workitem *work);
Signature · 1 line
2.35.1
author maintainer
#250 lore raw

PATCH 235/255 bcache: fix set_at_max_writeback_rate() for multiple attached devices

In reply to Greg Kroah-Hartman

From: Coly Li <[email protected]>

[ Upstream commit d2d05b88035d2d51a5bb6c5afec88a0880c73df4 ]

Inside set_at_max_writeback_rate() the calculation in following if() check is wrong,

	if (atomic_inc_return(&c->idle_counter) <
	    atomic_read(&c->attached_dev_nr) * 6)

Because each attached backing device has its own writeback thread running and increasing c->idle_counter, the counter increates much faster than expected. The correct calculation should be,

	(counter / dev_nr) < dev_nr * 6

which equals to,
counter < dev_nr * dev_nr * 6

This patch fixes the above mistake with correct calculation, and helper routine idle_counter_exceeded() is added to make code be more clear.

---
 drivers/md/bcache/writeback.c | 73 +++++++++++++++++++++++++----------
 1 file changed, 52 insertions(+), 21 deletions(-)
drivers/md/bcache/writeback.c +52 -21
index 0b02210ab435..5767ff6c13e3 100644
@@ -119,27 +119,61 @@ static void __update_writeback_rate(struct cached_dev *dc)
 	dc->writeback_rate_target = target;
 }
 
+static bool idle_counter_exceeded(struct cache_set *c)
+{
+	int counter, dev_nr;
+
+	/*
+	 * If c->idle_counter is overflow (idel for really long time),
+	 * reset as 0 and not set maximum rate this time for code
+	 * simplicity.
+	 */
+	counter = atomic_inc_return(&c->idle_counter);
+	if (counter <= 0) {
+		atomic_set(&c->idle_counter, 0);
+		return false;
+	}
+
+	dev_nr = atomic_read(&c->attached_dev_nr);
+	if (dev_nr == 0)
+		return false;
+
+	/*
+	 * c->idle_counter is increased by writeback thread of all
+	 * attached backing devices, in order to represent a rough
+	 * time period, counter should be divided by dev_nr.
+	 * Otherwise the idle time cannot be larger with more backing
+	 * device attached.
+	 * The following calculation equals to checking
+	 *	(counter / dev_nr) < (dev_nr * 6)
+	 */
+	if (counter < (dev_nr * dev_nr * 6))
+		return false;
+
+	return true;
+}
+
+/*
+ * Idle_counter is increased every time when update_writeback_rate() is
+ * called. If all backing devices attached to the same cache set have
+ * identical dc->writeback_rate_update_seconds values, it is about 6
+ * rounds of update_writeback_rate() on each backing device before
+ * c->at_max_writeback_rate is set to 1, and then max wrteback rate set
+ * to each dc->writeback_rate.rate.
+ * In order to avoid extra locking cost for counting exact dirty cached
+ * devices number, c->attached_dev_nr is used to calculate the idle
+ * throushold. It might be bigger if not all cached device are in write-
+ * back mode, but it still works well with limited extra rounds of
+ * update_writeback_rate().
+ */
 static bool set_at_max_writeback_rate(struct cache_set *c,
 				       struct cached_dev *dc)
 {
 	/* Don't set max writeback rate if gc is running */
 	if (!c->gc_mark_valid)
 		return false;
-	/*
-	 * Idle_counter is increased everytime when update_writeback_rate() is
-	 * called. If all backing devices attached to the same cache set have
-	 * identical dc->writeback_rate_update_seconds values, it is about 6
-	 * rounds of update_writeback_rate() on each backing device before
-	 * c->at_max_writeback_rate is set to 1, and then max wrteback rate set
-	 * to each dc->writeback_rate.rate.
-	 * In order to avoid extra locking cost for counting exact dirty cached
-	 * devices number, c->attached_dev_nr is used to calculate the idle
-	 * throushold. It might be bigger if not all cached device are in write-
-	 * back mode, but it still works well with limited extra rounds of
-	 * update_writeback_rate().
-	 */
-	if (atomic_inc_return(&c->idle_counter) <
-	    atomic_read(&c->attached_dev_nr) * 6)
+
+	if (!idle_counter_exceeded(c))
 		return false;
 
 	if (atomic_read(&c->at_max_writeback_rate) != 1)
@@ -153,13 +187,10 @@ static bool set_at_max_writeback_rate(struct cache_set *c,
 	dc->writeback_rate_change = 0;
 
 	/*
-	 * Check c->idle_counter and c->at_max_writeback_rate agagain in case
-	 * new I/O arrives during before set_at_max_writeback_rate() returns.
-	 * Then the writeback rate is set to 1, and its new value should be
-	 * decided via __update_writeback_rate().
+	 * In case new I/O arrives during before
+	 * set_at_max_writeback_rate() returns.
 	 */
-	if ((atomic_read(&c->idle_counter) <
-	     atomic_read(&c->attached_dev_nr) * 6) ||
+	if (!idle_counter_exceeded(c) ||
 	    !atomic_read(&c->at_max_writeback_rate))
 		return false;
 
Signature · 1 line
2.35.1
author maintainer
#252 lore raw

PATCH 237/255 md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d

In reply to Greg Kroah-Hartman

From: Logan Gunthorpe <[email protected]>

[ Upstream commit 5e2cf333b7bd5d3e62595a44d598a254c697cd74 ]

A complicated deadlock exists when using the journal and an elevated group_thrtead_cnt. It was found with loop devices, but its not clear whether it can be seen with real disks. The deadlock can occur simply by writing data with an fio script.

When the deadlock occurs, multiple threads will hang in different ways:

1) The group threads will hang in the blk-wbt code with bios waiting to

    be submitted to the block layer:

        io_schedule+0x70/0xb0
        rq_qos_wait+0x153/0x210
        wbt_wait+0x115/0x1b0
        io_schedule+0x70/0xb0
        rq_qos_wait+0x153/0x210
        wbt_wait+0x115/0x1b0
        __rq_qos_throttle+0x38/0x60
        blk_mq_submit_bio+0x589/0xcd0
        wbt_wait+0x115/0x1b0
        __rq_qos_throttle+0x38/0x60
        blk_mq_submit_bio+0x589/0xcd0
        __submit_bio+0xe6/0x100
        submit_bio_noacct_nocheck+0x42e/0x470
        submit_bio_noacct+0x4c2/0xbb0
        ops_run_io+0x46b/0x1a30
        handle_stripe+0xcd3/0x36b0
        handle_active_stripes.constprop.0+0x6f6/0xa60
        raid5_do_work+0x177/0x330

    Or:
        io_schedule+0x70/0xb0
        rq_qos_wait+0x153/0x210
        wbt_wait+0x115/0x1b0
        __rq_qos_throttle+0x38/0x60
        blk_mq_submit_bio+0x589/0xcd0
        __submit_bio+0xe6/0x100
        submit_bio_noacct_nocheck+0x42e/0x470
        submit_bio_noacct+0x4c2/0xbb0
        flush_deferred_bios+0x136/0x170
        raid5_do_work+0x262/0x330

2) The r5l_reclaim thread will hang in the same way, submitting a

    bio to the block layer:

        io_schedule+0x70/0xb0
        rq_qos_wait+0x153/0x210
        wbt_wait+0x115/0x1b0
        __rq_qos_throttle+0x38/0x60
        blk_mq_submit_bio+0x589/0xcd0
        __submit_bio+0xe6/0x100
        submit_bio_noacct_nocheck+0x42e/0x470
        submit_bio_noacct+0x4c2/0xbb0
        submit_bio+0x3f/0xf0
        md_super_write+0x12f/0x1b0
        md_update_sb.part.0+0x7c6/0xff0
        md_update_sb+0x30/0x60
        r5l_do_reclaim+0x4f9/0x5e0
        r5l_reclaim_thread+0x69/0x30b

    However, before hanging, the MD_SB_CHANGE_PENDING flag will be
    set for sb_flags in r5l_write_super_and_discard_space(). This
    flag will never be cleared because the submit_bio() call never
    returns.

3) Due to the MD_SB_CHANGE_PENDING flag being set, handle_stripe() will do no processing on any pending stripes and re-set STRIPE_HANDLE. This will cause the raid5d thread to enter an infinite loop, constantly trying to handle the same stripes stuck in the queue.

The raid5d thread has a blk_plug that holds a number of bios that are also stuck waiting seeing the thread is in a loop that never schedules. These bios have been accounted for by blk-wbt thus preventing the other threads above from continuing when they try to submit bios. --Deadlock.

To fix this, add the same wait_event() that is used in raid5_do_work() to raid5d() such that if MD_SB_CHANGE_PENDING is set, the thread will schedule and wait until the flag is cleared. The schedule action will flush the plug which will allow the r5l_reclaim thread to continue, thus preventing the deadlock.

However, md_check_recovery() calls can also clear MD_SB_CHANGE_PENDING from the same thread and can thus deadlock if the thread is put to sleep. So avoid waiting if md_check_recovery() is being called in the loop.

It's not clear when the deadlock was introduced, but the similar wait_event() call in raid5_do_work() was added in 2017 by this commit:

16d997b78b15 ("md/raid5: simplfy delaying of writes while metadata
is updated.")

---
 drivers/md/raid5.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
drivers/md/raid5.c +12 -0
index a7753e859ea9..d0c3f49c8c16 100644
@@ -36,6 +36,7 @@
  */
 
 #include <linux/blkdev.h>
+#include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/raid/pq.h>
 #include <linux/async_tx.h>
@@ -6334,7 +6335,18 @@ static void raid5d(struct md_thread *thread)
 			spin_unlock_irq(&conf->device_lock);
 			md_check_recovery(mddev);
 			spin_lock_irq(&conf->device_lock);
+
+			/*
+			 * Waiting on MD_SB_CHANGE_PENDING below may deadlock
+			 * seeing md_check_recovery() is needed to clear
+			 * the flag when using mdmon.
+			 */
+			continue;
 		}
+
+		wait_event_lock_irq(mddev->sb_wait,
+			!test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags),
+			conf->device_lock);
 	}
 	pr_debug("%d stripes handled\n", handled);
 
Signature · 1 line
2.35.1
author maintainer
#254 lore raw

PATCH 239/255 usb: musb: Fix musb_gadget.c rxstate overflow bug

In reply to Greg Kroah-Hartman

From: Robin Guo <[email protected]>

[ Upstream commit eea4c860c3b366369eff0489d94ee4f0571d467d ]

The usb function device call musb_gadget_queue() adds the passed request to musb_ep::req_list,If the (request->length > musb_ep->packet_sz) and (is_buffer_mapped(req) return false),the rxstate() will copy all data in fifo to request->buf which may cause request->buf out of bounds.

Fix it by add the length check :
fifocnt = min_t(unsigned, request->length - request->actual, fifocnt);

---
 drivers/usb/musb/musb_gadget.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/usb/musb/musb_gadget.c +3 -0
index 4622400ba4dd..8e83995fc3bd 100644
@@ -760,6 +760,9 @@ static void rxstate(struct musb *musb, struct musb_request *req)
 			musb_writew(epio, MUSB_RXCSR, csr);
 
 buffer_aint_mapped:
+			fifo_count = min_t(unsigned int,
+					request->length - request->actual,
+					(unsigned int)fifo_count);
 			musb_read_fifo(musb_ep->hw_ep, fifo_count, (u8 *)
 					(request->buf + request->actual));
 			request->actual += fifo_count;
Signature · 1 line
2.35.1
author maintainer
#257 lore raw

PATCH 242/255 nvme: copy firmware_rev on each init

In reply to Greg Kroah-Hartman

From: Keith Busch <[email protected]>

[ Upstream commit a8eb6c1ba48bddea82e8d74cbe6e119f006be97d ]

The firmware revision can change on after a reset so copy the most recent info each time instead of just the first time, otherwise the sysfs firmware_rev entry may contain stale data.

---
 drivers/nvme/host/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/nvme/host/core.c +2 -1
index f1717f34b2f3..6627fb531f33 100644
@@ -2671,7 +2671,6 @@ static int nvme_init_subsystem(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
 	nvme_init_subnqn(subsys, ctrl, id);
 	memcpy(subsys->serial, id->sn, sizeof(subsys->serial));
 	memcpy(subsys->model, id->mn, sizeof(subsys->model));
-	memcpy(subsys->firmware_rev, id->fr, sizeof(subsys->firmware_rev));
 	subsys->vendor_id = le16_to_cpu(id->vid);
 	subsys->cmic = id->cmic;
 	subsys->awupf = le16_to_cpu(id->awupf);
@@ -2824,6 +2823,8 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
 				ctrl->quirks |= core_quirks[i].quirks;
 		}
 	}
+	memcpy(ctrl->subsys->firmware_rev, id->fr,
+	       sizeof(ctrl->subsys->firmware_rev));
 
 	if (force_apst && (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS)) {
 		dev_warn(ctrl->device, "forcibly allowing all power states due to nvme_core.force_apst -- use at your own risk\n");
Signature · 1 line
2.35.1
author maintainer
#260 lore raw

PATCH 245/255 clk: bcm2835: Make peripheral PLLC critical

In reply to Greg Kroah-Hartman

From: Maxime Ripard <[email protected]>

[ Upstream commit 6c5422851d8be8c7451e968fd2e6da41b6109e17 ]

When testing for a series affecting the VEC, it was discovered that turning off and on the VEC clock is crashing the system.

It turns out that, when disabling the VEC clock, it's the only child of the PLLC-per clock which will also get disabled. The source of the crash is PLLC-per being disabled.

It's likely that some other device might not take a clock reference that it actually needs, but it's unclear which at this point. Let's make PLLC-per critical so that we don't have that crash.

---
 drivers/clk/bcm/clk-bcm2835.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/clk/bcm/clk-bcm2835.c +1 -1
index e650379b3230..b4e6a7923233 100644
@@ -1756,7 +1756,7 @@ static const struct bcm2835_clk_desc clk_desc_array[] = {
 		.load_mask = CM_PLLC_LOADPER,
 		.hold_mask = CM_PLLC_HOLDPER,
 		.fixed_divider = 1,
-		.flags = CLK_SET_RATE_PARENT),
+		.flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT),
 
 	/*
 	 * PLLD is the display PLL, used to drive DSI display panels.
Signature · 1 line
2.35.1
author maintainer
#240 lore raw

PATCH 225/255 ARM: dts: imx6sx: add missing properties for sram

In reply to Greg Kroah-Hartman

From: Alexander Stein <[email protected]>

[ Upstream commit 415432c008b2bce8138841356ba444631cabaa50 ]

All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property sram@900000: '#size-cells' is a required property sram@900000: 'ranges' is a required property

---
 arch/arm/boot/dts/imx6sx.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)
arch/arm/boot/dts/imx6sx.dtsi +6 -0
index 531a52c1e987..b3e24d8bd299 100644
@@ -163,12 +163,18 @@
 		ocram_s: sram@8f8000 {
 			compatible = "mmio-sram";
 			reg = <0x008f8000 0x4000>;
+			ranges = <0 0x008f8000 0x4000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&clks IMX6SX_CLK_OCRAM_S>;
 		};
 
 		ocram: sram@900000 {
 			compatible = "mmio-sram";
 			reg = <0x00900000 0x20000>;
+			ranges = <0 0x00900000 0x20000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&clks IMX6SX_CLK_OCRAM>;
 		};
 
Signature · 1 line
2.35.1
author maintainer
#241 lore raw

PATCH 226/255 btrfs: scrub: try to fix super block errors

In reply to Greg Kroah-Hartman

From: Qu Wenruo <[email protected]>

[ Upstream commit f9eab5f0bba76742af654f33d517bf62a0db8f12 ]

[BUG]
The following script shows that, although scrub can detect super block errors, it never tries to fix it:

mkfs.btrfs -f -d raid1 -m raid1 $dev1 $dev2 xfs_io -c "pwrite 67108864 4k" $dev2

mount $dev1 $mnt
btrfs scrub start -B $dev2
btrfs scrub start -Br $dev2
umount $mnt

The first scrub reports the super error correctly:

scrub done for f3289218-abd3-41ac-a630-202f766c0859

  Scrub started:    Tue Aug  2 14:44:11 2022
  Status:           finished
  Duration:         0:00:00
  Total to scrub:   1.26GiB
  Rate:             0.00B/s
  Error summary:    super=1
    Corrected:      0
    Uncorrectable:  0
    Unverified:     0

But the second read-only scrub still reports the same super error:

  Scrub started:    Tue Aug  2 14:44:11 2022
  Status:           finished
  Duration:         0:00:00
  Total to scrub:   1.26GiB
  Rate:             0.00B/s
  Error summary:    super=1
    Corrected:      0
    Uncorrectable:  0
    Unverified:     0

[CAUSE]
The comments already shows that super block can be easily fixed by committing a transaction:

/*
* If we find an error in a super block, we just report it.
* They will get written with the next transaction commit
* anyway
*/

But the truth is, such assumption is not always true, and since scrub should try to repair every error it found (except for read-only scrub), we should really actively commit a transaction to fix this.

[FIX]
Just commit a transaction if we found any super block errors, after everything else is done.

We cannot do this just after scrub_supers(), as btrfs_commit_transaction() will try to pause and wait for the running scrub, thus we can not call it with scrub_lock hold.

---
 fs/btrfs/scrub.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
fs/btrfs/scrub.c +36 -0
index e5db948daa12..45809f75692e 100644
@@ -3849,6 +3849,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 	int ret;
 	struct btrfs_device *dev;
 	unsigned int nofs_flag;
+	bool need_commit = false;
 
 	if (btrfs_fs_closing(fs_info))
 		return -EAGAIN;
@@ -3961,6 +3962,12 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 	 */
 	nofs_flag = memalloc_nofs_save();
 	if (!is_dev_replace) {
+		u64 old_super_errors;
+
+		spin_lock(&sctx->stat_lock);
+		old_super_errors = sctx->stat.super_errors;
+		spin_unlock(&sctx->stat_lock);
+
 		btrfs_info(fs_info, "scrub: started on devid %llu", devid);
 		/*
 		 * by holding device list mutex, we can
@@ -3969,6 +3976,16 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 		mutex_lock(&fs_info->fs_devices->device_list_mutex);
 		ret = scrub_supers(sctx, dev);
 		mutex_unlock(&fs_info->fs_devices->device_list_mutex);
+
+		spin_lock(&sctx->stat_lock);
+		/*
+		 * Super block errors found, but we can not commit transaction
+		 * at current context, since btrfs_commit_transaction() needs
+		 * to pause the current running scrub (hold by ourselves).
+		 */
+		if (sctx->stat.super_errors > old_super_errors && !sctx->readonly)
+			need_commit = true;
+		spin_unlock(&sctx->stat_lock);
 	}
 
 	if (!ret)
@@ -3995,6 +4012,25 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 	scrub_workers_put(fs_info);
 	scrub_put_ctx(sctx);
 
+	/*
+	 * We found some super block errors before, now try to force a
+	 * transaction commit, as scrub has finished.
+	 */
+	if (need_commit) {
+		struct btrfs_trans_handle *trans;
+
+		trans = btrfs_start_transaction(fs_info->tree_root, 0);
+		if (IS_ERR(trans)) {
+			ret = PTR_ERR(trans);
+			btrfs_err(fs_info,
+	"scrub: failed to start transaction to fix super block errors: %d", ret);
+			return ret;
+		}
+		ret = btrfs_commit_transaction(trans);
+		if (ret < 0)
+			btrfs_err(fs_info,
+	"scrub: failed to commit transaction to fix super block errors: %d", ret);
+	}
 	return ret;
 out:
 	scrub_workers_put(fs_info);
Signature · 1 line
2.35.1
author maintainer
#242 lore raw

PATCH 227/255 clk: zynqmp: Fix stack-out-of-bounds in strncpy`

In reply to Greg Kroah-Hartman

From: Ian Nam <[email protected]>

[ Upstream commit dd80fb2dbf1cd8751efbe4e53e54056f56a9b115 ]

"BUG: KASAN: stack-out-of-bounds in strncpy+0x30/0x68"

Linux-ATF interface is using 16 bytes of SMC payload. In case clock name is longer than 15 bytes, string terminated NULL character will not be received by Linux. Add explicit NULL character at last byte to fix issues when clock name is longer.

This fixes below bug reported by KASAN:

==================================================================

 BUG: KASAN: stack-out-of-bounds in strncpy+0x30/0x68
 Read of size 1 at addr ffff0008c89a7410 by task swapper/0/1

 CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.4.0-00396-g81ef9e7-dirty #3
 Hardware name: Xilinx Versal vck190 Eval board revA (QSPI) (DT)
 Call trace:
  dump_backtrace+0x0/0x1e8
  show_stack+0x14/0x20
  dump_stack+0xd4/0x108
  print_address_description.isra.0+0xbc/0x37c
  __kasan_report+0x144/0x198
  kasan_report+0xc/0x18
  __asan_load1+0x5c/0x68
  strncpy+0x30/0x68
  zynqmp_clock_probe+0x238/0x7b8
  platform_drv_probe+0x6c/0xc8
  really_probe+0x14c/0x418
  driver_probe_device+0x74/0x130
  __device_attach_driver+0xc4/0xe8
  bus_for_each_drv+0xec/0x150
  __device_attach+0x160/0x1d8
  device_initial_probe+0x10/0x18
  bus_probe_device+0xe0/0xf0
  device_add+0x528/0x950
  of_device_add+0x5c/0x80
  of_platform_device_create_pdata+0x120/0x168
  of_platform_bus_create+0x244/0x4e0
  of_platform_populate+0x50/0xe8
  zynqmp_firmware_probe+0x370/0x3a8
  platform_drv_probe+0x6c/0xc8
  really_probe+0x14c/0x418
  driver_probe_device+0x74/0x130
  device_driver_attach+0x94/0xa0
  __driver_attach+0x70/0x108
  bus_for_each_dev+0xe4/0x158
  driver_attach+0x30/0x40
  bus_add_driver+0x21c/0x2b8
  driver_register+0xbc/0x1d0
  __platform_driver_register+0x7c/0x88
  zynqmp_firmware_driver_init+0x1c/0x24
  do_one_initcall+0xa4/0x234
  kernel_init_freeable+0x1b0/0x24c
  kernel_init+0x10/0x110
  ret_from_fork+0x10/0x18

 The buggy address belongs to the page:
 page:ffff0008f9be1c88 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0
 raw: 0008d00000000000 ffff0008f9be1c90 ffff0008f9be1c90 0000000000000000
 raw: 0000000000000000 0000000000000000 00000000ffffffff
 page dumped because: kasan: bad access detected

addr ffff0008c89a7410 is located in stack of task swapper/0/1 at offset 112 in frame:
zynqmp_clock_probe+0x0/0x7b8

this frame has 3 objects:
[32, 44) 'response'
[64, 80) 'ret_payload'
[96, 112) 'name'

 Memory state around the buggy address:
  ffff0008c89a7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  ffff0008c89a7380: 00 00 00 00 f1 f1 f1 f1 00 04 f2 f2 00 00 f2 f2
 >ffff0008c89a7400: 00 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
                          ^
  ffff0008c89a7480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  ffff0008c89a7500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ==================================================================
---
 drivers/clk/zynqmp/clkc.c | 7 +++++++
 1 file changed, 7 insertions(+)
drivers/clk/zynqmp/clkc.c +7 -0
index 6f057ab9df03..4ef201ac8252 100644
@@ -679,6 +679,13 @@ static void zynqmp_get_clock_info(void)
 				  FIELD_PREP(CLK_ATTR_NODE_INDEX, i);
 
 		zynqmp_pm_clock_get_name(clock[i].clk_id, &name);
+
+		/*
+		 * Terminate with NULL character in case name provided by firmware
+		 * is longer and truncated due to size limit.
+		 */
+		name.name[sizeof(name.name) - 1] = '\0';
+
 		if (!strcmp(name.name, RESERVED_CLK_NAME))
 			continue;
 		strncpy(clock[i].clk_name, name.name, MAX_NAME_LEN);
Signature · 1 line
2.35.1
author maintainer
#268 lore raw

PATCH 252/255 md: Replace snprintf with scnprintf

In reply to Greg Kroah-Hartman

From: Saurabh Sengar <[email protected]>

commit 1727fd5015d8f93474148f94e34cda5aa6ad4a43 upstream.

Current code produces a warning as shown below when total characters in the constituent block device names plus the slashes exceeds 200. snprintf() returns the number of characters generated from the given input, which could cause the expression “200 – len” to wrap around to a large positive number. Fix this by using scnprintf() instead, which returns the actual number of characters written into the buffer.

[ 1513.267938] ------------[ cut here ]------------
[ 1513.267943] WARNING: CPU: 15 PID: 37247 at <snip>/lib/vsprintf.c:2509 vsnprintf+0x2c8/0x510
[ 1513.267944] Modules linked in:  <snip>
[ 1513.267969] CPU: 15 PID: 37247 Comm: mdadm Not tainted 5.4.0-1085-azure #90~18.04.1-Ubuntu
[ 1513.267969] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022
[ 1513.267971] RIP: 0010:vsnprintf+0x2c8/0x510
<-snip->
[ 1513.267982] Call Trace:
[ 1513.267986]  snprintf+0x45/0x70
[ 1513.267990]  ? disk_name+0x71/0xa0
[ 1513.267993]  dump_zones+0x114/0x240 [raid0]
[ 1513.267996]  ? _cond_resched+0x19/0x40
[ 1513.267998]  raid0_run+0x19e/0x270 [raid0]
[ 1513.268000]  md_run+0x5e0/0xc50
[ 1513.268003]  ? security_capable+0x3f/0x60
[ 1513.268005]  do_md_run+0x19/0x110
[ 1513.268006]  md_ioctl+0x195e/0x1f90
[ 1513.268007]  blkdev_ioctl+0x91f/0x9f0
[ 1513.268010]  block_ioctl+0x3d/0x50
[ 1513.268012]  do_vfs_ioctl+0xa9/0x640
[ 1513.268014]  ? __fput+0x162/0x260
[ 1513.268016]  ksys_ioctl+0x75/0x80
[ 1513.268017]  __x64_sys_ioctl+0x1a/0x20
[ 1513.268019]  do_syscall_64+0x5e/0x200
[ 1513.268021]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes 766038846e875 ("md/raid0: replace printk() with pr_*()")
---
 drivers/md/raid0.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/md/raid0.c +2 -2
@@ -63,8 +63,8 @@ static void dump_zones(struct mddev *mdd
 		int len = 0;
 
 		for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
-			len += snprintf(line+len, 200-len, "%s%s", k?"/":"",
-					bdevname(conf->devlist[j*raid_disks
+			len += scnprintf(line+len, 200-len, "%s%s", k?"/":"",
+					 bdevname(conf->devlist[j*raid_disks
 							       + k]->bdev, b));
 		pr_debug("md: zone%d=[%s]\n", j, line);
 
author maintainer
#271 lore raw

PATCH 254/255 inet: fully convert sk->sk_rx_dst to RCU rules

In reply to Greg Kroah-Hartman

From: Eric Dumazet <[email protected]>

commit 8f905c0e7354ef261360fb7535ea079b1082c105 upstream.

syzbot reported various issues around early demux, one being included in this changelog [1]

sk->sk_rx_dst is using RCU protection without clearly documenting it.

And following sequences in tcp_v4_do_rcv()/tcp_v6_do_rcv() are not following standard RCU rules.

[a] dst_release(dst);
[b] sk->sk_rx_dst = NULL;

They look wrong because a delete operation of RCU protected pointer is supposed to clear the pointer before
the call_rcu()/synchronize_rcu() guarding actual memory freeing.

In some cases indeed, dst could be freed before [b] is done.

We could cheat by clearing sk_rx_dst before calling dst_release(), but this seems the right time to stick to standard RCU annotations and debugging facilities.

[1]

BUG: KASAN: use-after-free in dst_check include/net/dst.h:470 [inline]
BUG: KASAN: use-after-free in tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792
Read of size 2 at addr ffff88807f1cb73a by task syz-executor.5/9204

CPU: 0 PID: 9204 Comm: syz-executor.5 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247
 __kasan_report mm/kasan/report.c:433 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:450
 dst_check include/net/dst.h:470 [inline]
 tcp_v4_early_demux+0x95b/0x960 net/ipv4/tcp_ipv4.c:1792
 ip_rcv_finish_core.constprop.0+0x15de/0x1e80 net/ipv4/ip_input.c:340
 ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583
 ip_sublist_rcv net/ipv4/ip_input.c:609 [inline]
 ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644
 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
 __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556
 __netif_receive_skb_list net/core/dev.c:5608 [inline]
 netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699
 gro_normal_list net/core/dev.c:5853 [inline]
 gro_normal_list net/core/dev.c:5849 [inline]
 napi_complete_done+0x1f1/0x880 net/core/dev.c:6590
 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
 virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557
 __napi_poll+0xaf/0x440 net/core/dev.c:7023
 napi_poll net/core/dev.c:7090 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7177
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 common_interrupt+0x52/0xc0 arch/x86/kernel/irq.c:240
 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0033:0x7f5e972bfd57
Code: 39 d1 73 14 0f 1f 80 00 00 00 00 48 8b 50 f8 48 83 e8 08 48 39 ca 77 f3 48 39 c3 73 3e 48 89 13 48 8b 50 f8 48 89 38 49 8b 0e <48> 8b 3e 48 83 c3 08 48 83 c6 08 eb bc 48 39 d1 72 9e 48 39 d0 73
RSP: 002b:00007fff8a413210 EFLAGS: 00000283
RAX: 00007f5e97108990 RBX: 00007f5e97108338 RCX: ffffffff81d3aa45
RDX: ffffffff81d3aa45 RSI: 00007f5e97108340 RDI: ffffffff81d3aa45
RBP: 00007f5e97107eb8 R08: 00007f5e97108d88 R09: 0000000093c2e8d9
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f5e97107eb0
R13: 00007f5e97108338 R14: 00007f5e97107ea8 R15: 0000000000000019
 </TASK>

Allocated by task 13:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:259 [inline]
 slab_post_alloc_hook mm/slab.h:519 [inline]
 slab_alloc_node mm/slub.c:3234 [inline]
 slab_alloc mm/slub.c:3242 [inline]
 kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247
 dst_alloc+0x146/0x1f0 net/core/dst.c:92
 rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613
 ip_route_input_slow+0x1817/0x3a20 net/ipv4/route.c:2340
 ip_route_input_rcu net/ipv4/route.c:2470 [inline]
 ip_route_input_noref+0x116/0x2a0 net/ipv4/route.c:2415
 ip_rcv_finish_core.constprop.0+0x288/0x1e80 net/ipv4/ip_input.c:354
 ip_list_rcv_finish.constprop.0+0x1b2/0x6e0 net/ipv4/ip_input.c:583
 ip_sublist_rcv net/ipv4/ip_input.c:609 [inline]
 ip_list_rcv+0x34e/0x490 net/ipv4/ip_input.c:644
 __netif_receive_skb_list_ptype net/core/dev.c:5508 [inline]
 __netif_receive_skb_list_core+0x549/0x8e0 net/core/dev.c:5556
 __netif_receive_skb_list net/core/dev.c:5608 [inline]
 netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5699
 gro_normal_list net/core/dev.c:5853 [inline]
 gro_normal_list net/core/dev.c:5849 [inline]
 napi_complete_done+0x1f1/0x880 net/core/dev.c:6590
 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline]
 virtnet_poll+0xca2/0x11b0 drivers/net/virtio_net.c:1557
 __napi_poll+0xaf/0x440 net/core/dev.c:7023
 napi_poll net/core/dev.c:7090 [inline]
 net_rx_action+0x801/0xb40 net/core/dev.c:7177
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558

Freed by task 13:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:46
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:366 [inline]
 ____kasan_slab_free mm/kasan/common.c:328 [inline]
 __kasan_slab_free+0xff/0x130 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:1723 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749
 slab_free mm/slub.c:3513 [inline]
 kmem_cache_free+0xbd/0x5d0 mm/slub.c:3530
 dst_destroy+0x2d6/0x3f0 net/core/dst.c:127
 rcu_do_batch kernel/rcu/tree.c:2506 [inline]
 rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2741
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558

Last potentially related work creation:
 kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xf5/0x120 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:2985 [inline]
 call_rcu+0xb1/0x740 kernel/rcu/tree.c:3065
 dst_release net/core/dst.c:177 [inline]
 dst_release+0x79/0xe0 net/core/dst.c:167
 tcp_v4_do_rcv+0x612/0x8d0 net/ipv4/tcp_ipv4.c:1712
 sk_backlog_rcv include/net/sock.h:1030 [inline]
 __release_sock+0x134/0x3b0 net/core/sock.c:2768
 release_sock+0x54/0x1b0 net/core/sock.c:3300
 tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1441
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 sock_write_iter+0x289/0x3c0 net/socket.c:1057
 call_write_iter include/linux/fs.h:2162 [inline]
 new_sync_write+0x429/0x660 fs/read_write.c:503
 vfs_write+0x7cd/0xae0 fs/read_write.c:590
 ksys_write+0x1ee/0x250 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff88807f1cb700
 which belongs to the cache ip_dst_cache of size 176
The buggy address is located 58 bytes inside of
 176-byte region [ffff88807f1cb700, ffff88807f1cb7b0)
The buggy address belongs to the page:
page:ffffea0001fc72c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7f1cb
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 dead000000000100 dead000000000122 ffff8881413bb780
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 5, ts 108466983062, free_ts 108048976062
 prep_new_page mm/page_alloc.c:2418 [inline]
 get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369
 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
 alloc_slab_page mm/slub.c:1793 [inline]
 allocate_slab mm/slub.c:1930 [inline]
 new_slab+0x32d/0x4a0 mm/slub.c:1993
 ___slab_alloc+0x918/0xfe0 mm/slub.c:3022
 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109
 slab_alloc_node mm/slub.c:3200 [inline]
 slab_alloc mm/slub.c:3242 [inline]
 kmem_cache_alloc+0x35c/0x3a0 mm/slub.c:3247
 dst_alloc+0x146/0x1f0 net/core/dst.c:92
 rt_dst_alloc+0x73/0x430 net/ipv4/route.c:1613
 __mkroute_output net/ipv4/route.c:2564 [inline]
 ip_route_output_key_hash_rcu+0x921/0x2d00 net/ipv4/route.c:2791
 ip_route_output_key_hash+0x18b/0x300 net/ipv4/route.c:2619
 __ip_route_output_key include/net/route.h:126 [inline]
 ip_route_output_flow+0x23/0x150 net/ipv4/route.c:2850
 ip_route_output_key include/net/route.h:142 [inline]
 geneve_get_v4_rt+0x3a6/0x830 drivers/net/geneve.c:809
 geneve_xmit_skb drivers/net/geneve.c:899 [inline]
 geneve_xmit+0xc4a/0x3540 drivers/net/geneve.c:1082
 __netdev_start_xmit include/linux/netdevice.h:4994 [inline]
 netdev_start_xmit include/linux/netdevice.h:5008 [inline]
 xmit_one net/core/dev.c:3590 [inline]
 dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3606
 __dev_queue_xmit+0x299a/0x3650 net/core/dev.c:4229
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1338 [inline]
 free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389
 free_unref_page_prepare mm/page_alloc.c:3309 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3388
 qlink_free mm/kasan/quarantine.c:146 [inline]
 qlist_free_all+0x5a/0xc0 mm/kasan/quarantine.c:165
 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272
 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:444
 kasan_slab_alloc include/linux/kasan.h:259 [inline]
 slab_post_alloc_hook mm/slab.h:519 [inline]
 slab_alloc_node mm/slub.c:3234 [inline]
 kmem_cache_alloc_node+0x255/0x3f0 mm/slub.c:3270
 __alloc_skb+0x215/0x340 net/core/skbuff.c:414
 alloc_skb include/linux/skbuff.h:1126 [inline]
 alloc_skb_with_frags+0x93/0x620 net/core/skbuff.c:6078
 sock_alloc_send_pskb+0x783/0x910 net/core/sock.c:2575
 mld_newpack+0x1df/0x770 net/ipv6/mcast.c:1754
 add_grhead+0x265/0x330 net/ipv6/mcast.c:1857
 add_grec+0x1053/0x14e0 net/ipv6/mcast.c:1995
 mld_send_initial_cr.part.0+0xf6/0x230 net/ipv6/mcast.c:2242
 mld_send_initial_cr net/ipv6/mcast.c:1232 [inline]
 mld_dad_work+0x1d3/0x690 net/ipv6/mcast.c:2268
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445

Memory state around the buggy address:
 ffff88807f1cb600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88807f1cb680: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
>ffff88807f1cb700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff88807f1cb780: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
 ffff88807f1cb800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
Fixes 41063e9dd119 ("ipv4: Early TCP socket demux.")
[cmllamas: fixed trivial merge conflict]
---
 include/net/sock.h   |    2 +-
 net/ipv4/af_inet.c   |    2 +-
 net/ipv4/tcp.c       |    3 +--
 net/ipv4/tcp_input.c |    2 +-
 net/ipv4/tcp_ipv4.c  |   11 +++++++----
 net/ipv4/udp.c       |    6 +++---
 net/ipv6/tcp_ipv6.c  |   11 +++++++----
 net/ipv6/udp.c       |    4 ++--
 8 files changed, 23 insertions(+), 18 deletions(-)
include/net/sock.h +1 -1
@@ -399,7 +399,7 @@ struct sock {
 #ifdef CONFIG_XFRM
 	struct xfrm_policy __rcu *sk_policy[2];
 #endif
-	struct dst_entry	*sk_rx_dst;
+	struct dst_entry __rcu	*sk_rx_dst;
 	struct dst_entry __rcu	*sk_dst_cache;
 	atomic_t		sk_omem_alloc;
 	int			sk_sndbuf;
net/ipv4/af_inet.c +1 -1
@@ -157,7 +157,7 @@ void inet_sock_destruct(struct sock *sk)
 
 	kfree(rcu_dereference_protected(inet->inet_opt, 1));
 	dst_release(rcu_dereference_protected(sk->sk_dst_cache, 1));
-	dst_release(sk->sk_rx_dst);
+	dst_release(rcu_dereference_protected(sk->sk_rx_dst, 1));
 	sk_refcnt_debug_dec(sk);
 }
 EXPORT_SYMBOL(inet_sock_destruct);
net/ipv4/tcp.c +1 -2
@@ -2654,8 +2654,7 @@ int tcp_disconnect(struct sock *sk, int
 	icsk->icsk_ack.rcv_mss = TCP_MIN_MSS;
 	memset(&tp->rx_opt, 0, sizeof(tp->rx_opt));
 	__sk_dst_reset(sk);
-	dst_release(sk->sk_rx_dst);
-	sk->sk_rx_dst = NULL;
+	dst_release(xchg((__force struct dst_entry **)&sk->sk_rx_dst, NULL));
 	tcp_saved_syn_free(tp);
 	tp->compressed_ack = 0;
 	tp->segs_in = 0;
net/ipv4/tcp_input.c +1 -1
@@ -5616,7 +5616,7 @@ void tcp_rcv_established(struct sock *sk
 	trace_tcp_probe(sk, skb);
 
 	tcp_mstamp_refresh(tp);
-	if (unlikely(!sk->sk_rx_dst))
+	if (unlikely(!rcu_access_pointer(sk->sk_rx_dst)))
 		inet_csk(sk)->icsk_af_ops->sk_rx_dst_set(sk, skb);
 	/*
 	 *	Header prediction.
net/ipv4/tcp_ipv4.c +7 -4
@@ -1570,15 +1570,18 @@ int tcp_v4_do_rcv(struct sock *sk, struc
 	struct sock *rsk;
 
 	if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
-		struct dst_entry *dst = sk->sk_rx_dst;
+		struct dst_entry *dst;
+
+		dst = rcu_dereference_protected(sk->sk_rx_dst,
+						lockdep_sock_is_held(sk));
 
 		sock_rps_save_rxhash(sk, skb);
 		sk_mark_napi_id(sk, skb);
 		if (dst) {
 			if (inet_sk(sk)->rx_dst_ifindex != skb->skb_iif ||
 			    !dst->ops->check(dst, 0)) {
+				RCU_INIT_POINTER(sk->sk_rx_dst, NULL);
 				dst_release(dst);
-				sk->sk_rx_dst = NULL;
 			}
 		}
 		tcp_rcv_established(sk, skb);
@@ -1653,7 +1656,7 @@ int tcp_v4_early_demux(struct sk_buff *s
 		skb->sk = sk;
 		skb->destructor = sock_edemux;
 		if (sk_fullsock(sk)) {
-			struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
+			struct dst_entry *dst = rcu_dereference(sk->sk_rx_dst);
 
 			if (dst)
 				dst = dst_check(dst, 0);
@@ -2059,7 +2062,7 @@ void inet_sk_rx_dst_set(struct sock *sk,
 	struct dst_entry *dst = skb_dst(skb);
 
 	if (dst && dst_hold_safe(dst)) {
-		sk->sk_rx_dst = dst;
+		rcu_assign_pointer(sk->sk_rx_dst, dst);
 		inet_sk(sk)->rx_dst_ifindex = skb->skb_iif;
 	}
 }
net/ipv4/udp.c +3 -3
@@ -2137,7 +2137,7 @@ bool udp_sk_rx_dst_set(struct sock *sk,
 	struct dst_entry *old;
 
 	if (dst_hold_safe(dst)) {
-		old = xchg(&sk->sk_rx_dst, dst);
+		old = xchg((__force struct dst_entry **)&sk->sk_rx_dst, dst);
 		dst_release(old);
 		return old != dst;
 	}
@@ -2326,7 +2326,7 @@ int __udp4_lib_rcv(struct sk_buff *skb,
 		struct dst_entry *dst = skb_dst(skb);
 		int ret;
 
-		if (unlikely(sk->sk_rx_dst != dst))
+		if (unlikely(rcu_dereference(sk->sk_rx_dst) != dst))
 			udp_sk_rx_dst_set(sk, dst);
 
 		ret = udp_unicast_rcv_skb(sk, skb, uh);
@@ -2484,7 +2484,7 @@ int udp_v4_early_demux(struct sk_buff *s
 
 	skb->sk = sk;
 	skb->destructor = sock_efree;
-	dst = READ_ONCE(sk->sk_rx_dst);
+	dst = rcu_dereference(sk->sk_rx_dst);
 
 	if (dst)
 		dst = dst_check(dst, 0);
net/ipv6/tcp_ipv6.c +7 -4
@@ -106,7 +106,7 @@ static void inet6_sk_rx_dst_set(struct s
 	if (dst && dst_hold_safe(dst)) {
 		const struct rt6_info *rt = (const struct rt6_info *)dst;
 
-		sk->sk_rx_dst = dst;
+		rcu_assign_pointer(sk->sk_rx_dst, dst);
 		inet_sk(sk)->rx_dst_ifindex = skb->skb_iif;
 		tcp_inet6_sk(sk)->rx_dst_cookie = rt6_get_cookie(rt);
 	}
@@ -1394,15 +1394,18 @@ static int tcp_v6_do_rcv(struct sock *sk
 		opt_skb = skb_clone(skb, sk_gfp_mask(sk, GFP_ATOMIC));
 
 	if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
-		struct dst_entry *dst = sk->sk_rx_dst;
+		struct dst_entry *dst;
+
+		dst = rcu_dereference_protected(sk->sk_rx_dst,
+						lockdep_sock_is_held(sk));
 
 		sock_rps_save_rxhash(sk, skb);
 		sk_mark_napi_id(sk, skb);
 		if (dst) {
 			if (inet_sk(sk)->rx_dst_ifindex != skb->skb_iif ||
 			    dst->ops->check(dst, np->rx_dst_cookie) == NULL) {
+				RCU_INIT_POINTER(sk->sk_rx_dst, NULL);
 				dst_release(dst);
-				sk->sk_rx_dst = NULL;
 			}
 		}
 
@@ -1753,7 +1756,7 @@ INDIRECT_CALLABLE_SCOPE void tcp_v6_earl
 		skb->sk = sk;
 		skb->destructor = sock_edemux;
 		if (sk_fullsock(sk)) {
-			struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
+			struct dst_entry *dst = rcu_dereference(sk->sk_rx_dst);
 
 			if (dst)
 				dst = dst_check(dst, tcp_inet6_sk(sk)->rx_dst_cookie);
net/ipv6/udp.c +2 -2
@@ -889,7 +889,7 @@ int __udp6_lib_rcv(struct sk_buff *skb,
 		struct dst_entry *dst = skb_dst(skb);
 		int ret;
 
-		if (unlikely(sk->sk_rx_dst != dst))
+		if (unlikely(rcu_dereference(sk->sk_rx_dst) != dst))
 			udp6_sk_rx_dst_set(sk, dst);
 
 		if (!uh->check && !udp_sk(sk)->no_check6_rx) {
@@ -1001,7 +1001,7 @@ INDIRECT_CALLABLE_SCOPE void udp_v6_earl
 
 	skb->sk = sk;
 	skb->destructor = sock_efree;
-	dst = READ_ONCE(sk->sk_rx_dst);
+	dst = rcu_dereference(sk->sk_rx_dst);
 
 	if (dst)
 		dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);
author maintainer
#179 lore raw

PATCH 166/255 clk: bcm2835: fix bcm2835_clock_rate_from_divisor declaration

In reply to Greg Kroah-Hartman

From: Stefan Wahren <[email protected]>

[ Upstream commit 0b919a3728691c172312dee99ba654055ccd8c84 ]

The return value of bcm2835_clock_rate_from_divisor is always unsigned and also all caller expect this. So fix the declaration accordingly.

Fixes 41691b8862e2 ("clk: bcm2835: Add support for programming the audio domain clocks")
---
 drivers/clk/bcm/clk-bcm2835.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
drivers/clk/bcm/clk-bcm2835.c +3 -3
index e637bd6b295b..e650379b3230 100644
@@ -967,9 +967,9 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
 	return div;
 }
 
-static long bcm2835_clock_rate_from_divisor(struct bcm2835_clock *clock,
-					    unsigned long parent_rate,
-					    u32 div)
+static unsigned long bcm2835_clock_rate_from_divisor(struct bcm2835_clock *clock,
+						     unsigned long parent_rate,
+						     u32 div)
 {
 	const struct bcm2835_clock_data *data = clock->data;
 	u64 temp;
Signature · 1 line
2.35.1
author maintainer
#158 lore raw

PATCH 145/255 mtd: rawnand: meson: fix bit map use in meson_nfc_ecc_correct()

In reply to Greg Kroah-Hartman

From: Dan Carpenter <[email protected]>

[ Upstream commit 3e4ad3212cf22687410b1e8f4e68feec50646113 ]

The meson_nfc_ecc_correct() function accidentally does a right shift instead of a left shift so it only works for BIT(0). Also use BIT_ULL() because "correct_bitmap" is a u64 and we want to avoid shift wrapping bugs.

Fixes 8fae856c5350 ("mtd: rawnand: meson: add support for Amlogic NAND flash controller")
---
 drivers/mtd/nand/raw/meson_nand.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/mtd/nand/raw/meson_nand.c +2 -2
index 28dc26e1a20a..a65aadb54af6 100644
@@ -454,7 +454,7 @@ static int meson_nfc_ecc_correct(struct nand_chip *nand, u32 *bitflips,
 		if (ECC_ERR_CNT(*info) != ECC_UNCORRECTABLE) {
 			mtd->ecc_stats.corrected += ECC_ERR_CNT(*info);
 			*bitflips = max_t(u32, *bitflips, ECC_ERR_CNT(*info));
-			*correct_bitmap |= 1 >> i;
+			*correct_bitmap |= BIT_ULL(i);
 			continue;
 		}
 		if ((nand->options & NAND_NEED_SCRAMBLING) &&
@@ -800,7 +800,7 @@ static int meson_nfc_read_page_hwecc(struct nand_chip *nand, u8 *buf,
 			u8 *data = buf + i * ecc->size;
 			u8 *oob = nand->oob_poi + i * (ecc->bytes + 2);
 
-			if (correct_bitmap & (1 << i))
+			if (correct_bitmap & BIT_ULL(i))
 				continue;
 			ret = nand_check_erased_ecc_chunk(data,	ecc->size,
 							  oob, ecc->bytes + 2,
Signature · 1 line
2.35.1
author maintainer
#258 lore raw

PATCH 243/255 nvmet-tcp: add bounds check on Transfer Tag

In reply to Greg Kroah-Hartman

From: Varun Prakash <[email protected]>

[ Upstream commit b6a545ffa2c192b1e6da4a7924edac5ba9f4ea2b ]

ttag is used as an index to get cmd in nvmet_tcp_handle_h2c_data_pdu(), add a bounds check to avoid out-of-bounds access.

---
 drivers/nvme/target/tcp.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
drivers/nvme/target/tcp.c +9 -2
index eb5b39c2bba8..df7a911d303f 100644
@@ -858,10 +858,17 @@ static int nvmet_tcp_handle_h2c_data_pdu(struct nvmet_tcp_queue *queue)
 	struct nvme_tcp_data_pdu *data = &queue->pdu.data;
 	struct nvmet_tcp_cmd *cmd;
 
-	if (likely(queue->nr_cmds))
+	if (likely(queue->nr_cmds)) {
+		if (unlikely(data->ttag >= queue->nr_cmds)) {
+			pr_err("queue %d: received out of bound ttag %u, nr_cmds %u\n",
+				queue->idx, data->ttag, queue->nr_cmds);
+			nvmet_tcp_fatal_error(queue);
+			return -EPROTO;
+		}
 		cmd = &queue->cmds[data->ttag];
-	else
+	} else {
 		cmd = &queue->connect;
+	}
 
 	if (le32_to_cpu(data->data_offset) != cmd->rbytes_done) {
 		pr_err("ttag %u unexpected data offset %u (expected %u)\n",
Signature · 1 line
2.35.1
author maintainer
#26 lore raw

PATCH 26/255 regulator: qcom_rpm: Fix circular deferral regression

In reply to Greg Kroah-Hartman

From: Linus Walleij <[email protected]>

commit 8478ed5844588703a1a4c96a004b1525fbdbdd5e upstream.

On recent kernels, the PM8058 L16 (or any other PM8058 LDO-regulator) does not come up if they are supplied by an SMPS-regulator. This is not very strange since the regulators are registered in a long array and the L-regulators are registered before the S-regulators, and if an L-regulator defers, it will never get around to registering the S-regulator that it needs.

See arch/arm/boot/dts/qcom-apq8060-dragonboard.dts:

pm8058-regulators {
    (...)
    vdd_l13_l16-supply = <&pm8058_s4>;
    (...)

Ooops.

Fix this by moving the PM8058 S-regulators first in the array.

Do the same for the PM8901 S-regulators (though this is currently not causing any problems with out device trees) so that the pattern of registration order is the same on all PMnnnn chips.

Fixes 087a1b5cdd55 ("regulator: qcom: Rework to single platform device")
Cc Andy Gross <[email protected]>
Cc Bjorn Andersson <[email protected]>
Cc Konrad Dybcio <[email protected]>
---
 drivers/regulator/qcom_rpm-regulator.c |   24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)
drivers/regulator/qcom_rpm-regulator.c +12 -12
@@ -812,6 +812,12 @@ static const struct rpm_regulator_data r
 };
 
 static const struct rpm_regulator_data rpm_pm8058_regulators[] = {
+	{ "s0",   QCOM_RPM_PM8058_SMPS0,  &pm8058_smps, "vdd_s0" },
+	{ "s1",   QCOM_RPM_PM8058_SMPS1,  &pm8058_smps, "vdd_s1" },
+	{ "s2",   QCOM_RPM_PM8058_SMPS2,  &pm8058_smps, "vdd_s2" },
+	{ "s3",   QCOM_RPM_PM8058_SMPS3,  &pm8058_smps, "vdd_s3" },
+	{ "s4",   QCOM_RPM_PM8058_SMPS4,  &pm8058_smps, "vdd_s4" },
+
 	{ "l0",   QCOM_RPM_PM8058_LDO0,   &pm8058_nldo, "vdd_l0_l1_lvs"	},
 	{ "l1",   QCOM_RPM_PM8058_LDO1,   &pm8058_nldo, "vdd_l0_l1_lvs" },
 	{ "l2",   QCOM_RPM_PM8058_LDO2,   &pm8058_pldo, "vdd_l2_l11_l12" },
@@ -839,12 +845,6 @@ static const struct rpm_regulator_data r
 	{ "l24",  QCOM_RPM_PM8058_LDO24,  &pm8058_nldo, "vdd_l23_l24_l25" },
 	{ "l25",  QCOM_RPM_PM8058_LDO25,  &pm8058_nldo, "vdd_l23_l24_l25" },
 
-	{ "s0",   QCOM_RPM_PM8058_SMPS0,  &pm8058_smps, "vdd_s0" },
-	{ "s1",   QCOM_RPM_PM8058_SMPS1,  &pm8058_smps, "vdd_s1" },
-	{ "s2",   QCOM_RPM_PM8058_SMPS2,  &pm8058_smps, "vdd_s2" },
-	{ "s3",   QCOM_RPM_PM8058_SMPS3,  &pm8058_smps, "vdd_s3" },
-	{ "s4",   QCOM_RPM_PM8058_SMPS4,  &pm8058_smps, "vdd_s4" },
-
 	{ "lvs0", QCOM_RPM_PM8058_LVS0, &pm8058_switch, "vdd_l0_l1_lvs" },
 	{ "lvs1", QCOM_RPM_PM8058_LVS1, &pm8058_switch, "vdd_l0_l1_lvs" },
 
@@ -853,6 +853,12 @@ static const struct rpm_regulator_data r
 };
 
 static const struct rpm_regulator_data rpm_pm8901_regulators[] = {
+	{ "s0",   QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" },
+	{ "s1",   QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" },
+	{ "s2",   QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" },
+	{ "s3",   QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" },
+	{ "s4",   QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" },
+
 	{ "l0",   QCOM_RPM_PM8901_LDO0, &pm8901_nldo, "vdd_l0" },
 	{ "l1",   QCOM_RPM_PM8901_LDO1, &pm8901_pldo, "vdd_l1" },
 	{ "l2",   QCOM_RPM_PM8901_LDO2, &pm8901_pldo, "vdd_l2" },
@@ -861,12 +867,6 @@ static const struct rpm_regulator_data r
 	{ "l5",   QCOM_RPM_PM8901_LDO5, &pm8901_pldo, "vdd_l5" },
 	{ "l6",   QCOM_RPM_PM8901_LDO6, &pm8901_pldo, "vdd_l6" },
 
-	{ "s0",   QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" },
-	{ "s1",   QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" },
-	{ "s2",   QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" },
-	{ "s3",   QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" },
-	{ "s4",   QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" },
-
 	{ "lvs0", QCOM_RPM_PM8901_LVS0, &pm8901_switch, "lvs0_in" },
 	{ "lvs1", QCOM_RPM_PM8901_LVS1, &pm8901_switch, "lvs1_in" },
 	{ "lvs2", QCOM_RPM_PM8901_LVS2, &pm8901_switch, "lvs2_in" },
author maintainer
#82 lore raw

PATCH 82/255 tcp: fix tcp_cwnd_validate() to not forget is_cwnd_limited

In reply to Greg Kroah-Hartman

From: Neal Cardwell <[email protected]>

[ Upstream commit f4ce91ce12a7c6ead19b128ffa8cff6e3ded2a14 ]

This commit fixes a bug in the tracking of max_packets_out and is_cwnd_limited. This bug can cause the connection to fail to remember that is_cwnd_limited is true, causing the connection to fail to grow cwnd when it should, causing throughput to be lower than it should be.

The following event sequence is an example that triggers the bug:

(a) The connection is cwnd_limited, but packets_out is not at its peak due to TSO deferral deciding not to send another skb yet. In such cases the connection can advance max_packets_seq and set tp->is_cwnd_limited to true and max_packets_out to a small number.

(b) Then later in the round trip the connection is pacing-limited (not cwnd-limited), and packets_out is larger. In such cases the connection would raise max_packets_out to a bigger number but (unexpectedly) flip tp->is_cwnd_limited from true to false.

This commit fixes that bug.

One straightforward fix would be to separately track (a) the next window after max_packets_out reaches a maximum, and (b) the next window after tp->is_cwnd_limited is set to true. But this would require consuming an extra u32 sequence number.

Instead, to save space we track only the most important information. Specifically, we track the strongest available signal of the degree to which the cwnd is fully utilized:

(1) If the connection is cwnd-limited then we remember that fact for the current window.

(2) If the connection not cwnd-limited then we track the maximum number of outstanding packets in the current window.

In particular, note that the new logic cannot trigger the buggy (a)/(b) sequence above because with the new logic a condition where tp->packets_out > tp->max_packets_out can only trigger an update of tp->is_cwnd_limited if tp->is_cwnd_limited is false.

This first showed up in a testing of a BBRv2 dev branch, but this buggy behavior highlighted a general issue with the tcp_cwnd_validate() logic that can cause cwnd to fail to increase at the proper rate for any TCP congestion control, including Reno or CUBIC.

Fixes ca8a22634381 ("tcp: make cwnd-limited checks measurement-based, and gentler")
---
 include/linux/tcp.h   |  2 +-
 include/net/tcp.h     |  5 ++++-
 net/ipv4/tcp.c        |  2 ++
 net/ipv4/tcp_output.c | 19 ++++++++++++-------
 4 files changed, 19 insertions(+), 9 deletions(-)
include/linux/tcp.h +1 -1
index 358deb4ff830..89751c89f11f 100644
@@ -258,7 +258,7 @@ struct tcp_sock {
 	u32	packets_out;	/* Packets which are "in flight"	*/
 	u32	retrans_out;	/* Retransmitted packets out		*/
 	u32	max_packets_out;  /* max packets_out in last window */
-	u32	max_packets_seq;  /* right edge of max_packets_out flight */
+	u32	cwnd_usage_seq;  /* right edge of cwnd usage tracking flight */
 
 	u16	urg_data;	/* Saved octet of OOB data and control flags */
 	u8	ecn_flags;	/* ECN status bits.			*/
include/net/tcp.h +4 -1
index 8459145497b7..5b2473a08241 100644
@@ -1258,11 +1258,14 @@ static inline bool tcp_is_cwnd_limited(const struct sock *sk)
 {
 	const struct tcp_sock *tp = tcp_sk(sk);
 
+	if (tp->is_cwnd_limited)
+		return true;
+
 	/* If in slow start, ensure cwnd grows to twice what was ACKed. */
 	if (tcp_in_slow_start(tp))
 		return tp->snd_cwnd < 2 * tp->max_packets_out;
 
-	return tp->is_cwnd_limited;
+	return false;
 }
 
 /* BBR congestion control needs pacing.
net/ipv4/tcp.c +2 -0
index 0a570d5d0b38..2da4f852fc58 100644
@@ -2635,6 +2635,8 @@ int tcp_disconnect(struct sock *sk, int flags)
 	tp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
 	tp->snd_cwnd = TCP_INIT_CWND;
 	tp->snd_cwnd_cnt = 0;
+	tp->is_cwnd_limited = 0;
+	tp->max_packets_out = 0;
 	tp->window_clamp = 0;
 	tp->delivered = 0;
 	tp->delivered_ce = 0;
net/ipv4/tcp_output.c +12 -7
index c37028af0db0..b4a9f6948cb5 100644
@@ -1653,15 +1653,20 @@ static void tcp_cwnd_validate(struct sock *sk, bool is_cwnd_limited)
 	const struct tcp_congestion_ops *ca_ops = inet_csk(sk)->icsk_ca_ops;
 	struct tcp_sock *tp = tcp_sk(sk);
 
-	/* Track the maximum number of outstanding packets in each
-	 * window, and remember whether we were cwnd-limited then.
+	/* Track the strongest available signal of the degree to which the cwnd
+	 * is fully utilized. If cwnd-limited then remember that fact for the
+	 * current window. If not cwnd-limited then track the maximum number of
+	 * outstanding packets in the current window. (If cwnd-limited then we
+	 * chose to not update tp->max_packets_out to avoid an extra else
+	 * clause with no functional impact.)
 	 */
-	if (!before(tp->snd_una, tp->max_packets_seq) ||
-	    tp->packets_out > tp->max_packets_out ||
-	    is_cwnd_limited) {
-		tp->max_packets_out = tp->packets_out;
-		tp->max_packets_seq = tp->snd_nxt;
+	if (!before(tp->snd_una, tp->cwnd_usage_seq) ||
+	    is_cwnd_limited ||
+	    (!tp->is_cwnd_limited &&
+	     tp->packets_out > tp->max_packets_out)) {
 		tp->is_cwnd_limited = is_cwnd_limited;
+		tp->max_packets_out = tp->packets_out;
+		tp->cwnd_usage_seq = tp->snd_nxt;
 	}
 
 	if (tcp_is_cwnd_limited(sk)) {
Signature · 1 line
2.35.1
author maintainer
#136 lore raw

PATCH 123/255 clk: meson: Hold reference returned by of_get_parent()

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit 89ab396d712f7c91fe94f55cff23460426f5fc81 ]

We should hold the reference returned by of_get_parent() and use it to call of_node_put() for refcount balance.

Fixes 88e2da81241e ("clk: meson: aoclk: refactor common code into dedicated file")
Fixes 6682bd4d443f ("clk: meson: factorise meson64 peripheral clock controller drivers")
Fixes bb6eddd1d28c ("clk: meson: meson8b: use the HHI syscon if available")
---
 drivers/clk/meson/meson-aoclk.c | 5 ++++-
 drivers/clk/meson/meson-eeclk.c | 5 ++++-
 drivers/clk/meson/meson8b.c     | 5 ++++-
 3 files changed, 12 insertions(+), 3 deletions(-)
drivers/clk/meson/meson-aoclk.c +4 -1
index bf8bea675d24..6c7110a96194 100644
@@ -36,6 +36,7 @@ int meson_aoclkc_probe(struct platform_device *pdev)
 	struct meson_aoclk_reset_controller *rstc;
 	struct meson_aoclk_data *data;
 	struct device *dev = &pdev->dev;
+	struct device_node *np;
 	struct regmap *regmap;
 	int ret, clkid;
 
@@ -47,7 +48,9 @@ int meson_aoclkc_probe(struct platform_device *pdev)
 	if (!rstc)
 		return -ENOMEM;
 
-	regmap = syscon_node_to_regmap(of_get_parent(dev->of_node));
+	np = of_get_parent(dev->of_node);
+	regmap = syscon_node_to_regmap(np);
+	of_node_put(np);
 	if (IS_ERR(regmap)) {
 		dev_err(dev, "failed to get regmap\n");
 		return PTR_ERR(regmap);
drivers/clk/meson/meson-eeclk.c +4 -1
index a7cb1e7aedc4..18ae38787268 100644
@@ -17,6 +17,7 @@ int meson_eeclkc_probe(struct platform_device *pdev)
 {
 	const struct meson_eeclkc_data *data;
 	struct device *dev = &pdev->dev;
+	struct device_node *np;
 	struct regmap *map;
 	int ret, i;
 
@@ -25,7 +26,9 @@ int meson_eeclkc_probe(struct platform_device *pdev)
 		return -EINVAL;
 
 	/* Get the hhi system controller node */
-	map = syscon_node_to_regmap(of_get_parent(dev->of_node));
+	np = of_get_parent(dev->of_node);
+	map = syscon_node_to_regmap(np);
+	of_node_put(np);
 	if (IS_ERR(map)) {
 		dev_err(dev,
 			"failed to get HHI regmap\n");
drivers/clk/meson/meson8b.c +4 -1
index 082178a0f41a..efddf0d152a4 100644
@@ -3684,13 +3684,16 @@ static void __init meson8b_clkc_init_common(struct device_node *np,
 			struct clk_hw_onecell_data *clk_hw_onecell_data)
 {
 	struct meson8b_clk_reset *rstc;
+	struct device_node *parent_np;
 	const char *notifier_clk_name;
 	struct clk *notifier_clk;
 	void __iomem *clk_base;
 	struct regmap *map;
 	int i, ret;
 
-	map = syscon_node_to_regmap(of_get_parent(np));
+	parent_np = of_get_parent(np);
+	map = syscon_node_to_regmap(parent_np);
+	of_node_put(parent_np);
 	if (IS_ERR(map)) {
 		pr_info("failed to get HHI regmap - Trying obsolete regs\n");
 
Signature · 1 line
2.35.1
author maintainer
#160 lore raw

PATCH 147/255 xhci: Dont show warning for reinit on known broken suspend

In reply to Greg Kroah-Hartman

From: Mario Limonciello <[email protected]>

[ Upstream commit 484d6f7aa3283d082c87654b7fe7a7f725423dfb ]

commit 8b328f8002bc ("xhci: re-initialize the HC during resume if HCE was set") introduced a new warning message when the host controller error was set and re-initializing.

This is expected behavior on some designs which already set xhci->broken_suspend so the new warning is alarming to some users.

Modify the code to only show the warning if this was a surprising behavior to the XHCI driver.

---
 drivers/usb/host/xhci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/usb/host/xhci.c +2 -1
index 5ce16a259e61..3537113f006f 100644
@@ -1163,7 +1163,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	/* re-initialize the HC on Restore Error, or Host Controller Error */
 	if (temp & (STS_SRE | STS_HCE)) {
 		reinit_xhc = true;
-		xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp);
+		if (!xhci->broken_suspend)
+			xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp);
 	}
 
 	if (reinit_xhc) {
Signature · 1 line
2.35.1
author maintainer
#181 lore raw

PATCH 168/255 clk: ast2600: BCLK comes from EPLL

In reply to Greg Kroah-Hartman

From: Joel Stanley <[email protected]>

[ Upstream commit b8c1dc9c00b252b3be853720a71b05ed451ddd9f ]

This correction was made in the u-boot SDK recently. There are no in-tree users of this clock so the impact is minimal.

---
 drivers/clk/clk-ast2600.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/clk/clk-ast2600.c +1 -1
index 48122f574cb6..8a6c6b9c9a6a 100644
@@ -579,7 +579,7 @@ static int aspeed_g6_clk_probe(struct platform_device *pdev)
 	regmap_write(map, 0x308, 0x12000); /* 3x3 = 9 */
 
 	/* P-Bus (BCLK) clock divider */
-	hw = clk_hw_register_divider_table(dev, "bclk", "hpll", 0,
+	hw = clk_hw_register_divider_table(dev, "bclk", "epll", 0,
 			scu_g6_base + ASPEED_G6_CLK_SELECTION1, 20, 3, 0,
 			ast2600_div_table,
 			&aspeed_g6_clk_lock);
Signature · 1 line
2.35.1
author maintainer
#167 lore raw

PATCH 154/255 serial: 8250: Fix restoring termios speed after suspend

In reply to Greg Kroah-Hartman

From: Pali Rohár <[email protected]>

[ Upstream commit 379a33786d489ab81885ff0b3935cfeb36137fea ]

Since commit edc6afc54968 ("tty: switch to ktermios and new framework") termios speed is no longer stored only in c_cflag member but also in new additional c_ispeed and c_ospeed members. If BOTHER flag is set in c_cflag then termios speed is stored only in these new members.

Since commit 027b57170bf8 ("serial: core: Fix initializing and restoring termios speed") termios speed is available also in struct console.

So properly restore also c_ispeed and c_ospeed members after suspend to fix restoring termios speed which is not represented by Bnnn constant.

Fixes 4516d50aabed ("serial: 8250: Use canary to restart console after suspend")
---
 drivers/tty/serial/8250/8250_port.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/tty/serial/8250/8250_port.c +6 -1
index f8819f72304a..c1551319684f 100644
@@ -3180,8 +3180,13 @@ static void serial8250_console_restore(struct uart_8250_port *up)
 	unsigned int baud, quot, frac = 0;
 
 	termios.c_cflag = port->cons->cflag;
-	if (port->state->port.tty && termios.c_cflag == 0)
+	termios.c_ispeed = port->cons->ispeed;
+	termios.c_ospeed = port->cons->ospeed;
+	if (port->state->port.tty && termios.c_cflag == 0) {
 		termios.c_cflag = port->state->port.tty->termios.c_cflag;
+		termios.c_ispeed = port->state->port.tty->termios.c_ispeed;
+		termios.c_ospeed = port->state->port.tty->termios.c_ospeed;
+	}
 
 	baud = serial8250_get_baud_rate(port, &termios, NULL);
 	quot = serial8250_get_divisor(port, baud, &frac);
Signature · 1 line
2.35.1
author maintainer
#38 lore raw

PATCH 38/255 f2fs: fix to do sanity check on summary info

In reply to Greg Kroah-Hartman

From: Chao Yu <[email protected]>

commit c6ad7fd16657ebd34a87a97d9588195aae87597d upstream.

As Wenqing Liu reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=216456

BUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs]
Read of size 4 at addr ffff8881464dcd80 by task mount/1013

CPU: 3 PID: 1013 Comm: mount Tainted: G        W          6.0.0-rc4 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014
Call Trace:
 dump_stack_lvl+0x45/0x5e
 print_report.cold+0xf3/0x68d
 kasan_report+0xa8/0x130
 recover_data+0x63ae/0x6ae0 [f2fs]
 f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]
 f2fs_fill_super+0x4665/0x61e0 [f2fs]
 mount_bdev+0x2cf/0x3b0
 legacy_get_tree+0xed/0x1d0
 vfs_get_tree+0x81/0x2b0
 path_mount+0x47e/0x19d0
 do_mount+0xce/0xf0
 __x64_sys_mount+0x12c/0x1a0
 do_syscall_64+0x38/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node is larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size page.

- recover_data
- do_recover_data
- check_index_in_prev_nodes
- f2fs_data_blkaddr

This patch adds sanity check on summary info in recovery and GC flow in where the flows rely on them.

After patch:

[   29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018
---
 fs/f2fs/gc.c       |   10 +++++++++-
 fs/f2fs/recovery.c |   15 ++++++++++++---
 2 files changed, 21 insertions(+), 4 deletions(-)
fs/f2fs/gc.c +9 -1
@@ -612,7 +612,7 @@ static bool is_alive(struct f2fs_sb_info
 {
 	struct page *node_page;
 	nid_t nid;
-	unsigned int ofs_in_node;
+	unsigned int ofs_in_node, max_addrs;
 	block_t source_blkaddr;
 
 	nid = le32_to_cpu(sum->nid);
@@ -638,6 +638,14 @@ static bool is_alive(struct f2fs_sb_info
 		return false;
 	}
 
+	max_addrs = IS_INODE(node_page) ? DEF_ADDRS_PER_INODE :
+						DEF_ADDRS_PER_BLOCK;
+	if (ofs_in_node >= max_addrs) {
+		f2fs_err(sbi, "Inconsistent ofs_in_node:%u in summary, ino:%u, nid:%u, max:%u",
+			ofs_in_node, dni->ino, dni->nid, max_addrs);
+		return false;
+	}
+
 	*nofs = ofs_of_node(node_page);
 	source_blkaddr = datablock_addr(NULL, node_page, ofs_in_node);
 	f2fs_put_page(node_page, 1);
fs/f2fs/recovery.c +12 -3
@@ -406,7 +406,7 @@ static int check_index_in_prev_nodes(str
 	struct dnode_of_data tdn = *dn;
 	nid_t ino, nid;
 	struct inode *inode;
-	unsigned int offset;
+	unsigned int offset, ofs_in_node, max_addrs;
 	block_t bidx;
 	int i;
 
@@ -432,15 +432,24 @@ static int check_index_in_prev_nodes(str
 got_it:
 	/* Use the locked dnode page and inode */
 	nid = le32_to_cpu(sum.nid);
+	ofs_in_node = le16_to_cpu(sum.ofs_in_node);
+
+	max_addrs = ADDRS_PER_PAGE(dn->node_page, dn->inode);
+	if (ofs_in_node >= max_addrs) {
+		f2fs_err(sbi, "Inconsistent ofs_in_node:%u in summary, ino:%lu, nid:%u, max:%u",
+			ofs_in_node, dn->inode->i_ino, nid, max_addrs);
+		return -EFSCORRUPTED;
+	}
+
 	if (dn->inode->i_ino == nid) {
 		tdn.nid = nid;
 		if (!dn->inode_page_locked)
 			lock_page(dn->inode_page);
 		tdn.node_page = dn->inode_page;
-		tdn.ofs_in_node = le16_to_cpu(sum.ofs_in_node);
+		tdn.ofs_in_node = ofs_in_node;
 		goto truncate_out;
 	} else if (dn->nid == nid) {
-		tdn.ofs_in_node = le16_to_cpu(sum.ofs_in_node);
+		tdn.ofs_in_node = ofs_in_node;
 		goto truncate_out;
 	}
 
author maintainer
#58 lore raw

PATCH 58/255 tracing: Disable interrupt or preemption before acquiring arch_spinlock_t

In reply to Greg Kroah-Hartman

From: Waiman Long <[email protected]>

commit c0a581d7126c0bbc96163276f585fd7b4e4d8d0e upstream.

It was found that some tracing functions in kernel/trace/trace.c acquire an arch_spinlock_t with preemption and irqs enabled. An example is the tracing_saved_cmdlines_size_read() function which intermittently causes a "BUG: using smp_processor_id() in preemptible" warning when the LTP read_all_proc test is run.

That can be problematic in case preemption happens after acquiring the lock. Add the necessary preemption or interrupt disabling code in the appropriate places before acquiring an arch_spinlock_t.

The convention here is to disable preemption for trace_cmdline_lock and interupt for max_lock.

Cc Peter Zijlstra <[email protected]>
Cc Ingo Molnar <[email protected]>
Cc Will Deacon <[email protected]>
Cc Boqun Feng <[email protected]>
Fixes a35873a0993b ("tracing: Add conditional snapshot")
Fixes 939c7a4f04fc ("tracing: Introduce saved_cmdlines_size file")
---
 kernel/trace/trace.c |   22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
kernel/trace/trace.c +22 -0
@@ -1015,12 +1015,14 @@ void *tracing_cond_snapshot_data(struct
 {
 	void *cond_data = NULL;
 
+	local_irq_disable();
 	arch_spin_lock(&tr->max_lock);
 
 	if (tr->cond_snapshot)
 		cond_data = tr->cond_snapshot->cond_data;
 
 	arch_spin_unlock(&tr->max_lock);
+	local_irq_enable();
 
 	return cond_data;
 }
@@ -1156,9 +1158,11 @@ int tracing_snapshot_cond_enable(struct
 		goto fail_unlock;
 	}
 
+	local_irq_disable();
 	arch_spin_lock(&tr->max_lock);
 	tr->cond_snapshot = cond_snapshot;
 	arch_spin_unlock(&tr->max_lock);
+	local_irq_enable();
 
 	mutex_unlock(&trace_types_lock);
 
@@ -1185,6 +1189,7 @@ int tracing_snapshot_cond_disable(struct
 {
 	int ret = 0;
 
+	local_irq_disable();
 	arch_spin_lock(&tr->max_lock);
 
 	if (!tr->cond_snapshot)
@@ -1195,6 +1200,7 @@ int tracing_snapshot_cond_disable(struct
 	}
 
 	arch_spin_unlock(&tr->max_lock);
+	local_irq_enable();
 
 	return ret;
 }
@@ -1951,6 +1957,11 @@ static size_t tgid_map_max;
 
 #define SAVED_CMDLINES_DEFAULT 128
 #define NO_CMDLINE_MAP UINT_MAX
+/*
+ * Preemption must be disabled before acquiring trace_cmdline_lock.
+ * The various trace_arrays' max_lock must be acquired in a context
+ * where interrupt is disabled.
+ */
 static arch_spinlock_t trace_cmdline_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 struct saved_cmdlines_buffer {
 	unsigned map_pid_to_cmdline[PID_MAX_DEFAULT+1];
@@ -2163,6 +2174,9 @@ static int trace_save_cmdline(struct tas
 	 * the lock, but we also don't want to spin
 	 * nor do we want to disable interrupts,
 	 * so if we miss here, then better luck next time.
+	 *
+	 * This is called within the scheduler and wake up, so interrupts
+	 * had better been disabled and run queue lock been held.
 	 */
 	if (!arch_spin_trylock(&trace_cmdline_lock))
 		return 0;
@@ -5199,9 +5213,11 @@ tracing_saved_cmdlines_size_read(struct
 	char buf[64];
 	int r;
 
+	preempt_disable();
 	arch_spin_lock(&trace_cmdline_lock);
 	r = scnprintf(buf, sizeof(buf), "%u\n", savedcmd->cmdline_num);
 	arch_spin_unlock(&trace_cmdline_lock);
+	preempt_enable();
 
 	return simple_read_from_buffer(ubuf, cnt, ppos, buf, r);
 }
@@ -5226,10 +5242,12 @@ static int tracing_resize_saved_cmdlines
 		return -ENOMEM;
 	}
 
+	preempt_disable();
 	arch_spin_lock(&trace_cmdline_lock);
 	savedcmd_temp = savedcmd;
 	savedcmd = s;
 	arch_spin_unlock(&trace_cmdline_lock);
+	preempt_enable();
 	free_saved_cmdlines_buffer(savedcmd_temp);
 
 	return 0;
@@ -5684,10 +5702,12 @@ static int tracing_set_tracer(struct tra
 
 #ifdef CONFIG_TRACER_SNAPSHOT
 	if (t->use_max_tr) {
+		local_irq_disable();
 		arch_spin_lock(&tr->max_lock);
 		if (tr->cond_snapshot)
 			ret = -EBUSY;
 		arch_spin_unlock(&tr->max_lock);
+		local_irq_enable();
 		if (ret)
 			goto out;
 	}
@@ -6767,10 +6787,12 @@ tracing_snapshot_write(struct file *filp
 		goto out;
 	}
 
+	local_irq_disable();
 	arch_spin_lock(&tr->max_lock);
 	if (tr->cond_snapshot)
 		ret = -EBUSY;
 	arch_spin_unlock(&tr->max_lock);
+	local_irq_enable();
 	if (ret)
 		goto out;
 
author maintainer
#33 lore raw

PATCH 33/255 powerpc/boot: Explicitly disable usage of SPE instructions

In reply to Greg Kroah-Hartman

From: Pali Rohár <[email protected]>

commit 110a58b9f91c66f743c01a2c217243d94c899c23 upstream.

uImage boot wrapper should not use SPE instructions, like kernel itself. Boot wrapper has already disabled Altivec and VSX instructions but not SPE. Options -mno-spe and -mspe=no already set when compilation of kernel, but not when compiling uImage wrapper yet. Fix it.

---
 arch/powerpc/boot/Makefile |    1 +
 1 file changed, 1 insertion(+)
arch/powerpc/boot/Makefile +1 -0
@@ -30,6 +30,7 @@ endif
 
 BOOTCFLAGS    := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		 -fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \
+		 $(call cc-option,-mno-spe) $(call cc-option,-mspe=no) \
 		 -pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
 		 $(LINUXINCLUDE)
 
author maintainer
#121 lore raw

PATCH 108/255 memory: pl353-smc: Fix refcount leak bug in pl353_smc_probe()

In reply to Greg Kroah-Hartman

From: Liang He <[email protected]>

[ Upstream commit 61b3c876c1cbdb1efd1f52a1f348580e6e14efb6 ]

The break of for_each_available_child_of_node() needs a corresponding of_node_put() when the reference 'child' is not used anymore. Here we do not need to call of_node_put() in fail path as '!match' means no break.

While the of_platform_device_create() will created a new reference by 'child' but it has considered the refcounting.

Fixes fee10bd22678 ("memory: pl353: Add driver for arm pl353 static memory controller")
---
 drivers/memory/pl353-smc.c | 1 +
 1 file changed, 1 insertion(+)
drivers/memory/pl353-smc.c +1 -0
index cc01979780d8..322d7ead0031 100644
@@ -416,6 +416,7 @@ static int pl353_smc_probe(struct amba_device *adev, const struct amba_id *id)
 	if (init)
 		init(adev, child);
 	of_platform_device_create(child, NULL, &adev->dev);
+	of_node_put(child);
 
 	return 0;
 
Signature · 1 line
2.35.1
author maintainer
#3 lore raw

PATCH 3/255 ALSA: usb-audio: Fix potential memory leaks

In reply to Greg Kroah-Hartman

From: Takashi Iwai <[email protected]>

commit 6382da0828995af87aa8b8bef28cc61aceb4aff3 upstream.

When the driver hits -ENOMEM at allocating a URB or a buffer, it aborts and goes to the error path that releases the all previously allocated resources. However, when -ENOMEM hits at the middle of the sync EP URB allocation loop, the partially allocated URBs might be left without released, because ep->nurbs is still zero at that point.

Fix it by setting ep->nurbs at first, so that the error handler loops over the full URB list.

---
 sound/usb/endpoint.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
sound/usb/endpoint.c +1 -2
@@ -977,6 +977,7 @@ static int sync_ep_set_params(struct snd
 	if (!ep->syncbuf)
 		return -ENOMEM;
 
+	ep->nurbs = SYNC_URBS;
 	for (i = 0; i < SYNC_URBS; i++) {
 		struct snd_urb_ctx *u = &ep->urb[i];
 		u->index = i;
@@ -996,8 +997,6 @@ static int sync_ep_set_params(struct snd
 		u->urb->complete = snd_complete_urb;
 	}
 
-	ep->nurbs = SYNC_URBS;
-
 	return 0;
 
 out_of_memory:
author maintainer
#54 lore raw

PATCH 54/255 KVM: VMX: Drop bits 31:16 when shoving exception error code into VMCS

In reply to Greg Kroah-Hartman

From: Sean Christopherson <[email protected]>

commit eba9799b5a6efe2993cf92529608e4aa8163d73b upstream.

Deliberately truncate the exception error code when shoving it into the VMCS (VM-Entry field for vmcs01 and vmcs02, VM-Exit field for vmcs12). Intel CPUs are incapable of handling 32-bit error codes and will never generate an error code with bits 31:16, but userspace can provide an arbitrary error code via KVM_SET_VCPU_EVENTS. Failure to drop the bits on exception injection results in failed VM-Entry, as VMX disallows setting bits 31:16. Setting the bits on VM-Exit would at best confuse L1, and at worse induce a nested VM-Entry failure, e.g. if L1 decided to reinject the exception back into L2.

---
 arch/x86/kvm/vmx/nested.c |   11 ++++++++++-
 arch/x86/kvm/vmx/vmx.c    |   12 +++++++++++-
 2 files changed, 21 insertions(+), 2 deletions(-)
arch/x86/kvm/vmx/nested.c +10 -1
@@ -3427,7 +3427,16 @@ static void nested_vmx_inject_exception_
 	u32 intr_info = nr | INTR_INFO_VALID_MASK;
 
 	if (vcpu->arch.exception.has_error_code) {
-		vmcs12->vm_exit_intr_error_code = vcpu->arch.exception.error_code;
+		/*
+		 * Intel CPUs do not generate error codes with bits 31:16 set,
+		 * and more importantly VMX disallows setting bits 31:16 in the
+		 * injected error code for VM-Entry.  Drop the bits to mimic
+		 * hardware and avoid inducing failure on nested VM-Entry if L1
+		 * chooses to inject the exception back to L2.  AMD CPUs _do_
+		 * generate "full" 32-bit error codes, so KVM allows userspace
+		 * to inject exception error codes with bits 31:16 set.
+		 */
+		vmcs12->vm_exit_intr_error_code = (u16)vcpu->arch.exception.error_code;
 		intr_info |= INTR_INFO_DELIVER_CODE_MASK;
 	}
 
arch/x86/kvm/vmx/vmx.c +11 -1
@@ -1676,7 +1676,17 @@ static void vmx_queue_exception(struct k
 	kvm_deliver_exception_payload(vcpu);
 
 	if (has_error_code) {
-		vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE, error_code);
+		/*
+		 * Despite the error code being architecturally defined as 32
+		 * bits, and the VMCS field being 32 bits, Intel CPUs and thus
+		 * VMX don't actually supporting setting bits 31:16.  Hardware
+		 * will (should) never provide a bogus error code, but AMD CPUs
+		 * do generate error codes with bits 31:16 set, and so KVM's
+		 * ABI lets userspace shove in arbitrary 32-bit values.  Drop
+		 * the upper bits to avoid VM-Fail, losing information that
+		 * does't really exist is preferable to killing the VM.
+		 */
+		vmcs_write32(VM_ENTRY_EXCEPTION_ERROR_CODE, (u16)error_code);
 		intr_info |= INTR_INFO_DELIVER_CODE_MASK;
 	}
 
author maintainer
#19 lore raw

PATCH 19/255 can: kvaser_usb_leaf: Fix CAN state after restart

In reply to Greg Kroah-Hartman

From: Anssi Hannula <[email protected]>

commit 0be1a655fe68c8e6dcadbcbddb69cf2fb29881f5 upstream.

can_restart() expects CMD_START_CHIP to set the error state to ERROR_ACTIVE as it calls netif_carrier_on() immediately afterwards.

Otherwise the user may immediately trigger restart again and hit a BUG_ON() in can_restart().

Fix kvaser_usb_leaf set_mode(CMD_START_CHIP) to set the expected state.

---
 drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c |    2 ++
 1 file changed, 2 insertions(+)
drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +2 -0
@@ -1435,6 +1435,8 @@ static int kvaser_usb_leaf_set_mode(stru
 		err = kvaser_usb_leaf_simple_cmd_async(priv, CMD_START_CHIP);
 		if (err)
 			return err;
+
+		priv->can.state = CAN_STATE_ERROR_ACTIVE;
 		break;
 	default:
 		return -EOPNOTSUPP;
author maintainer
#5 lore raw

PATCH 5/255 ALSA: hda/realtek: remove ALC289_FIXUP_DUAL_SPK for Dell 5530

In reply to Greg Kroah-Hartman

From: Callum Osmotherly <[email protected]>

commit 417b9c51f59734d852e47252476fadc293ad994a upstream.

After some feedback from users with Dell Precision 5530 machines, this patch reverts the previous change to add ALC289_FIXUP_DUAL_SPK. While it improved the speaker output quality, it caused the headphone jack to have an audible "pop" sound when power saving was toggled.

Fixes 1885ff13d4c4 ("ALSA: hda/realtek: Enable 4-speaker output Dell Precision 5530 laptop")
---
 sound/pci/hda/patch_realtek.c |    1 -
 1 file changed, 1 deletion(-)
sound/pci/hda/patch_realtek.c +0 -1
@@ -8138,7 +8138,6 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1028, 0x0871, "Dell Precision 3630", ALC255_FIXUP_DELL_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1028, 0x0872, "Dell Precision 3630", ALC255_FIXUP_DELL_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1028, 0x0873, "Dell Precision 3930", ALC255_FIXUP_DUMMY_LINEOUT_VERB),
-	SND_PCI_QUIRK(0x1028, 0x087d, "Dell Precision 5530", ALC289_FIXUP_DUAL_SPK),
 	SND_PCI_QUIRK(0x1028, 0x08ad, "Dell WYSE AIO", ALC225_FIXUP_DELL_WYSE_AIO_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x08ae, "Dell WYSE NB", ALC225_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0935, "Dell", ALC274_FIXUP_DELL_AIO_LINEOUT_VERB),
author maintainer
#206 lore raw

PATCH 193/255 openvswitch: Fix double reporting of drops in dropwatch

In reply to Greg Kroah-Hartman

From: Mike Pattrick <[email protected]>

[ Upstream commit 1100248a5c5ccd57059eb8d02ec077e839a23826 ]

Frames sent to userspace can be reported as dropped in ovs_dp_process_packet, however, if they are dropped in the netlink code then netlink_attachskb will report the same frame as dropped.

This patch checks for error codes which indicate that the frame has already been freed.

---
 net/openvswitch/datapath.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)
net/openvswitch/datapath.c +10 -3
index 4f097bd3339e..63f36d6cd3f6 100644
@@ -236,10 +236,17 @@ void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key)
 		upcall.portid = ovs_vport_find_upcall_portid(p, skb);
 		upcall.mru = OVS_CB(skb)->mru;
 		error = ovs_dp_upcall(dp, skb, key, &upcall, 0);
-		if (unlikely(error))
-			kfree_skb(skb);
-		else
+		switch (error) {
+		case 0:
+		case -EAGAIN:
+		case -ERESTARTSYS:
+		case -EINTR:
 			consume_skb(skb);
+			break;
+		default:
+			kfree_skb(skb);
+			break;
+		}
 		stats_counter = &stats->n_missed;
 		goto out;
 	}
Signature · 1 line
2.35.1
author maintainer
#106 lore raw

PATCH 93/255 platform/x86: msi-laptop: Fix resource cleanup

In reply to Greg Kroah-Hartman

From: Hans de Goede <[email protected]>

[ Upstream commit 5523632aa10f906dfe2eb714ee748590dc7fc6b1 ]

Fix the input-device not getting free-ed on probe-errors and fix the msi_touchpad_dwork not getting cancelled on neither probe-errors nor on remove.

Fixes 143a4c0284dc ("msi-laptop: send out touchpad on/off key")
---
 drivers/platform/x86/msi-laptop.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/platform/x86/msi-laptop.c +3 -0
index 0960205ee49f..3e935303b143 100644
@@ -1116,6 +1116,8 @@ static int __init msi_init(void)
 fail_create_group:
 	if (quirks->load_scm_model) {
 		i8042_remove_filter(msi_laptop_i8042_filter);
+		cancel_delayed_work_sync(&msi_touchpad_dwork);
+		input_unregister_device(msi_laptop_input_dev);
 		cancel_delayed_work_sync(&msi_rfkill_dwork);
 		cancel_work_sync(&msi_rfkill_work);
 		rfkill_cleanup();
@@ -1136,6 +1138,7 @@ static void __exit msi_cleanup(void)
 {
 	if (quirks->load_scm_model) {
 		i8042_remove_filter(msi_laptop_i8042_filter);
+		cancel_delayed_work_sync(&msi_touchpad_dwork);
 		input_unregister_device(msi_laptop_input_dev);
 		cancel_delayed_work_sync(&msi_rfkill_dwork);
 		cancel_work_sync(&msi_rfkill_work);
Signature · 1 line
2.35.1
author maintainer
#244 lore raw

PATCH 229/255 clk: zynqmp: pll: rectify rate rounding in zynqmp_pll_round_rate

In reply to Greg Kroah-Hartman

From: Quanyang Wang <[email protected]>

[ Upstream commit 30eaf02149ecc3c5815e45d27187bf09e925071d ]

The function zynqmp_pll_round_rate is used to find a most appropriate PLL frequency which the hardware can generate according to the desired frequency. For example, if the desired frequency is 297MHz, considering the limited range from PS_PLL_VCO_MIN (1.5GHz) to PS_PLL_VCO_MAX (3.0GHz) of PLL, zynqmp_pll_round_rate should return 1.872GHz (297MHz * 5).

There are two problems with the current code of zynqmp_pll_round_rate:

1) When the rate is below PS_PLL_VCO_MIN, it can't find a correct rate when the parameter "rate" is an integer multiple of *prate, in other words, if "f" is zero, zynqmp_pll_round_rate won't return a valid frequency which is from PS_PLL_VCO_MIN to PS_PLL_VCO_MAX. For example, *prate is 33MHz and the rate is 660MHz, zynqmp_pll_round_rate will not boost up rate and just return 660MHz, and this will cause clk_calc_new_rates failure since zynqmp_pll_round_rate returns an invalid rate out of its boundaries.

2) Even if the rate is higher than PS_PLL_VCO_MIN, there is still a risk that zynqmp_pll_round_rate returns an invalid rate because the function DIV_ROUND_CLOSEST makes some loss in the fractional part. If the parent clock *prate is 33333333Hz and we want to set the PLL rate to 1.5GHz, this function will return 1499999985Hz by using the formula below:
value = *prate * DIV_ROUND_CLOSEST(rate, *prate)).
This value is also invalid since it's slightly smaller than PS_PLL_VCO_MIN. because DIV_ROUND_CLOSEST makes some loss in the fractional part.

---
 drivers/clk/zynqmp/pll.c | 31 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 16 deletions(-)
drivers/clk/zynqmp/pll.c +15 -16
index 18fee827602a..3a2a694e5bf3 100644
@@ -98,26 +98,25 @@ static long zynqmp_pll_round_rate(struct clk_hw *hw, unsigned long rate,
 				  unsigned long *prate)
 {
 	u32 fbdiv;
-	long rate_div, f;
+	u32 mult, div;
 
-	/* Enable the fractional mode if needed */
-	rate_div = (rate * FRAC_DIV) / *prate;
-	f = rate_div % FRAC_DIV;
-	if (f) {
-		if (rate > PS_PLL_VCO_MAX) {
-			fbdiv = rate / PS_PLL_VCO_MAX;
-			rate = rate / (fbdiv + 1);
-		}
-		if (rate < PS_PLL_VCO_MIN) {
-			fbdiv = DIV_ROUND_UP(PS_PLL_VCO_MIN, rate);
-			rate = rate * fbdiv;
-		}
-		return rate;
+	/* Let rate fall inside the range PS_PLL_VCO_MIN ~ PS_PLL_VCO_MAX */
+	if (rate > PS_PLL_VCO_MAX) {
+		div = DIV_ROUND_UP(rate, PS_PLL_VCO_MAX);
+		rate = rate / div;
+	}
+	if (rate < PS_PLL_VCO_MIN) {
+		mult = DIV_ROUND_UP(PS_PLL_VCO_MIN, rate);
+		rate = rate * mult;
 	}
 
 	fbdiv = DIV_ROUND_CLOSEST(rate, *prate);
-	fbdiv = clamp_t(u32, fbdiv, PLL_FBDIV_MIN, PLL_FBDIV_MAX);
-	return *prate * fbdiv;
+	if (fbdiv < PLL_FBDIV_MIN || fbdiv > PLL_FBDIV_MAX) {
+		fbdiv = clamp_t(u32, fbdiv, PLL_FBDIV_MIN, PLL_FBDIV_MAX);
+		rate = *prate * fbdiv;
+	}
+
+	return rate;
 }
 
 /**
Signature · 1 line
2.35.1
author maintainer
#253 lore raw

PATCH 238/255 usb: host: xhci: Fix potential memory leak in xhci_alloc_stream_info()

In reply to Greg Kroah-Hartman

From: Jianglei Nie <[email protected]>

[ Upstream commit 7e271f42a5cc3768cd2622b929ba66859ae21f97 ]

xhci_alloc_stream_info() allocates stream context array for stream_info ->stream_ctx_array with xhci_alloc_stream_ctx(). When some error occurs, stream_info->stream_ctx_array is not released, which will lead to a memory leak.

We can fix it by releasing the stream_info->stream_ctx_array with xhci_free_stream_ctx() on the error path to avoid the potential memory leak.

---
 drivers/usb/host/xhci-mem.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/usb/host/xhci-mem.c +6 -1
index ef23a69c6553..6125a98ffbf5 100644
@@ -650,7 +650,7 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci,
 			num_stream_ctxs, &stream_info->ctx_array_dma,
 			mem_flags);
 	if (!stream_info->stream_ctx_array)
-		goto cleanup_ctx;
+		goto cleanup_ring_array;
 	memset(stream_info->stream_ctx_array, 0,
 			sizeof(struct xhci_stream_ctx)*num_stream_ctxs);
 
@@ -711,6 +711,11 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci,
 	}
 	xhci_free_command(xhci, stream_info->free_streams_command);
 cleanup_ctx:
+	xhci_free_stream_ctx(xhci,
+		stream_info->num_stream_ctxs,
+		stream_info->stream_ctx_array,
+		stream_info->ctx_array_dma);
+cleanup_ring_array:
 	kfree(stream_info->stream_rings);
 cleanup_info:
 	kfree(stream_info);
Signature · 1 line
2.35.1
author maintainer
#13 lore raw

PATCH 13/255 iio: pressure: dps310: Refactor startup procedure

In reply to Greg Kroah-Hartman

From: Eddie James <[email protected]>

commit c2329717bdd3fa62f8a2f3d8d85ad0bee4556bd7 upstream.

Move the startup procedure into a function, and correct a missing check on the return code for writing the PRS_CFG register.

---
 drivers/iio/pressure/dps310.c |  188 ++++++++++++++++++++++--------------------
 1 file changed, 99 insertions(+), 89 deletions(-)
drivers/iio/pressure/dps310.c +99 -89
@@ -159,6 +159,102 @@ static int dps310_get_coefs(struct dps31
 	return 0;
 }
 
+/*
+ * Some versions of the chip will read temperatures in the ~60C range when
+ * it's actually ~20C. This is the manufacturer recommended workaround
+ * to correct the issue. The registers used below are undocumented.
+ */
+static int dps310_temp_workaround(struct dps310_data *data)
+{
+	int rc;
+	int reg;
+
+	rc = regmap_read(data->regmap, 0x32, &reg);
+	if (rc)
+		return rc;
+
+	/*
+	 * If bit 1 is set then the device is okay, and the workaround does not
+	 * need to be applied
+	 */
+	if (reg & BIT(1))
+		return 0;
+
+	rc = regmap_write(data->regmap, 0x0e, 0xA5);
+	if (rc)
+		return rc;
+
+	rc = regmap_write(data->regmap, 0x0f, 0x96);
+	if (rc)
+		return rc;
+
+	rc = regmap_write(data->regmap, 0x62, 0x02);
+	if (rc)
+		return rc;
+
+	rc = regmap_write(data->regmap, 0x0e, 0x00);
+	if (rc)
+		return rc;
+
+	return regmap_write(data->regmap, 0x0f, 0x00);
+}
+
+static int dps310_startup(struct dps310_data *data)
+{
+	int rc;
+	int ready;
+
+	/*
+	 * Set up pressure sensor in single sample, one measurement per second
+	 * mode
+	 */
+	rc = regmap_write(data->regmap, DPS310_PRS_CFG, 0);
+	if (rc)
+		return rc;
+
+	/*
+	 * Set up external (MEMS) temperature sensor in single sample, one
+	 * measurement per second mode
+	 */
+	rc = regmap_write(data->regmap, DPS310_TMP_CFG, DPS310_TMP_EXT);
+	if (rc)
+		return rc;
+
+	/* Temp and pressure shifts are disabled when PRC <= 8 */
+	rc = regmap_write_bits(data->regmap, DPS310_CFG_REG,
+			       DPS310_PRS_SHIFT_EN | DPS310_TMP_SHIFT_EN, 0);
+	if (rc)
+		return rc;
+
+	/* MEAS_CFG doesn't update correctly unless first written with 0 */
+	rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG,
+			       DPS310_MEAS_CTRL_BITS, 0);
+	if (rc)
+		return rc;
+
+	/* Turn on temperature and pressure measurement in the background */
+	rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG,
+			       DPS310_MEAS_CTRL_BITS, DPS310_PRS_EN |
+			       DPS310_TEMP_EN | DPS310_BACKGROUND);
+	if (rc)
+		return rc;
+
+	/*
+	 * Calibration coefficients required for reporting temperature.
+	 * They are available 40ms after the device has started
+	 */
+	rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready,
+				      ready & DPS310_COEF_RDY, 10000, 40000);
+	if (rc)
+		return rc;
+
+	rc = dps310_get_coefs(data);
+	if (rc)
+		return rc;
+
+	return dps310_temp_workaround(data);
+}
+
 static int dps310_get_pres_precision(struct dps310_data *data)
 {
 	int rc;
@@ -677,52 +773,12 @@ static const struct iio_info dps310_info
 	.write_raw = dps310_write_raw,
 };
 
-/*
- * Some verions of chip will read temperatures in the ~60C range when
- * its actually ~20C. This is the manufacturer recommended workaround
- * to correct the issue. The registers used below are undocumented.
- */
-static int dps310_temp_workaround(struct dps310_data *data)
-{
-	int rc;
-	int reg;
-
-	rc = regmap_read(data->regmap, 0x32, &reg);
-	if (rc < 0)
-		return rc;
-
-	/*
-	 * If bit 1 is set then the device is okay, and the workaround does not
-	 * need to be applied
-	 */
-	if (reg & BIT(1))
-		return 0;
-
-	rc = regmap_write(data->regmap, 0x0e, 0xA5);
-	if (rc < 0)
-		return rc;
-
-	rc = regmap_write(data->regmap, 0x0f, 0x96);
-	if (rc < 0)
-		return rc;
-
-	rc = regmap_write(data->regmap, 0x62, 0x02);
-	if (rc < 0)
-		return rc;
-
-	rc = regmap_write(data->regmap, 0x0e, 0x00);
-	if (rc < 0)
-		return rc;
-
-	return regmap_write(data->regmap, 0x0f, 0x00);
-}
-
 static int dps310_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct dps310_data *data;
 	struct iio_dev *iio;
-	int rc, ready;
+	int rc;
 
 	iio = devm_iio_device_alloc(&client->dev,  sizeof(*data));
 	if (!iio)
@@ -748,54 +804,8 @@ static int dps310_probe(struct i2c_clien
 	if (rc)
 		return rc;
 
-	/*
-	 * Set up pressure sensor in single sample, one measurement per second
-	 * mode
-	 */
-	rc = regmap_write(data->regmap, DPS310_PRS_CFG, 0);
-
-	/*
-	 * Set up external (MEMS) temperature sensor in single sample, one
-	 * measurement per second mode
-	 */
-	rc = regmap_write(data->regmap, DPS310_TMP_CFG, DPS310_TMP_EXT);
-	if (rc < 0)
-		return rc;
-
-	/* Temp and pressure shifts are disabled when PRC <= 8 */
-	rc = regmap_write_bits(data->regmap, DPS310_CFG_REG,
-			       DPS310_PRS_SHIFT_EN | DPS310_TMP_SHIFT_EN, 0);
-	if (rc < 0)
-		return rc;
-
-	/* MEAS_CFG doesn't update correctly unless first written with 0 */
-	rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG,
-			       DPS310_MEAS_CTRL_BITS, 0);
-	if (rc < 0)
-		return rc;
-
-	/* Turn on temperature and pressure measurement in the background */
-	rc = regmap_write_bits(data->regmap, DPS310_MEAS_CFG,
-			       DPS310_MEAS_CTRL_BITS, DPS310_PRS_EN |
-			       DPS310_TEMP_EN | DPS310_BACKGROUND);
-	if (rc < 0)
-		return rc;
-
-	/*
-	 * Calibration coefficients required for reporting temperature.
-	 * They are available 40ms after the device has started
-	 */
-	rc = regmap_read_poll_timeout(data->regmap, DPS310_MEAS_CFG, ready,
-				      ready & DPS310_COEF_RDY, 10000, 40000);
-	if (rc < 0)
-		return rc;
-
-	rc = dps310_get_coefs(data);
-	if (rc < 0)
-		return rc;
-
-	rc = dps310_temp_workaround(data);
-	if (rc < 0)
+	rc = dps310_startup(data);
+	if (rc)
 		return rc;
 
 	rc = devm_iio_device_register(&client->dev, iio);
author maintainer
#61 lore raw

PATCH 61/255 ARM: 9247/1: mm: set readonly for MT_MEMORY_RO with ARM_LPAE

In reply to Greg Kroah-Hartman

From: Wang Kefeng <[email protected]>

[ Upstream commit 14ca1a4690750bb54e1049e49f3140ef48958a6e ]

MT_MEMORY_RO is introduced by commit 598f0a99fa8a ("ARM: 9210/1:
Mark the FDT_FIXED sections as shareable"), which is a readonly memory type for FDT area, but there are some different between ARM_LPAE and non-ARM_LPAE, we need to setup PMD_SECT_AP2 and L_PMD_SECT_RDONLY for MT_MEMORY_RO when ARM_LAPE enabled.

non-ARM_LPAE 0xff800000-0xffa00000 2M PGD KERNEL ro NX SHD
ARM_LPAE 0xff800000-0xffc00000 4M PMD RW NX SHD
ARM_LPAE+fix 0xff800000-0xffc00000 4M PMD ro NX SHD

Fixes 598f0a99fa8a ("ARM: 9210/1: Mark the FDT_FIXED sections as shareable")
---
 arch/arm/mm/mmu.c | 4 ++++
 1 file changed, 4 insertions(+)
arch/arm/mm/mmu.c +4 -0
index 463cbb0631be..5becec790379 100644
@@ -320,7 +320,11 @@ static struct mem_type mem_types[] __ro_after_init = {
 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
 			     L_PTE_XN | L_PTE_RDONLY,
 		.prot_l1   = PMD_TYPE_TABLE,
+#ifdef CONFIG_ARM_LPAE
+		.prot_sect = PMD_TYPE_SECT | L_PMD_SECT_RDONLY | PMD_SECT_AP2,
+#else
 		.prot_sect = PMD_TYPE_SECT,
+#endif
 		.domain    = DOMAIN_KERNEL,
 	},
 	[MT_ROM] = {
Signature · 1 line
2.35.1
author maintainer
#229 lore raw

PATCH 214/255 drm/vc4: vec: Fix timings for VEC modes

In reply to Greg Kroah-Hartman

From: Mateusz Kwiatkowski <[email protected]>

[ Upstream commit 30d7565be96b3946c18a1ce3fd538f7946839092 ]

This commit fixes vertical timings of the VEC (composite output) modes to accurately represent the 525-line ("NTSC") and 625-line ("PAL") ITU-R standards.

Previous timings were actually defined as 502 and 601 lines, resulting in non-standard 62.69 Hz and 52 Hz signals being generated, respectively.

---
 drivers/gpu/drm/vc4/vc4_vec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/gpu/drm/vc4/vc4_vec.c +2 -2
index 7402bc768664..0c764fd8399a 100644
@@ -256,7 +256,7 @@ static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
 static const struct drm_display_mode ntsc_mode = {
 	DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
 		 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
-		 480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0,
+		 480, 480 + 7, 480 + 7 + 6, 525, 0,
 		 DRM_MODE_FLAG_INTERLACE)
 };
 
@@ -278,7 +278,7 @@ static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
 static const struct drm_display_mode pal_mode = {
 	DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
 		 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
-		 576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0,
+		 576, 576 + 4, 576 + 4 + 6, 625, 0,
 		 DRM_MODE_FLAG_INTERLACE)
 };
 
Signature · 1 line
2.35.1
author maintainer
#24 lore raw

PATCH 24/255 quota: Check next/prev free block number after reading from quota file

In reply to Greg Kroah-Hartman

From: Zhihao Cheng <[email protected]>

commit 6c8ea8b8cd4722efd419f91ca46a2dc81b7d89a3 upstream.

Following process:
Init: v2_read_file_info: <3> dqi_free_blk 0 dqi_free_entry 5 dqi_blks 6

Step 1. chown bin f_a -> dquot_acquire -> v2_write_dquot:
qtree_write_dquot
do_insert_tree
find_free_dqentry
get_free_dqblk
write_blk(info->dqi_blocks) // info->dqi_blocks = 6, failure. The
content in physical block (corresponding to blk 6) is random.

Step 2. chown root f_a -> dquot_transfer -> dqput_all -> dqput ->

         ext4_release_dquot -> v2_release_dquot -> qtree_delete_dquot:
  dquot_release
   remove_tree
    free_dqentry
     put_free_dqblk(6)
      info->dqi_free_blk = blk    // info->dqi_free_blk = 6

Step 3. drop cache (buffer head for block 6 is released)

Step 4. chown bin f_b -> dquot_acquire -> commit_dqblk -> v2_write_dquot:
qtree_write_dquot
do_insert_tree
find_free_dqentry
get_free_dqblk
dh = (struct qt_disk_dqdbheader *)buf
blk = info->dqi_free_blk // 6
ret = read_blk(info, blk, buf) // The content of buf is random info->dqi_free_blk = le32_to_cpu(dh->dqdh_next_free) // random blk

Step 5. chown bin f_c -> notify_change -> ext4_setattr -> dquot_transfer:
dquot = dqget -> acquire_dquot -> ext4_acquire_dquot -> dquot_acquire ->

          commit_dqblk -> v2_write_dquot -> dq_insert_tree:

do_insert_tree
find_free_dqentry
get_free_dqblk
blk = info->dqi_free_blk // If blk < 0 and blk is not an error
code, it will be returned as dquot

transfer_to[USRQUOTA] = dquot // A random negative value __dquot_transfer(transfer_to)
dquot_add_inodes(transfer_to[cnt])

    spin_lock(&dquot->dq_dqb_lock)  // page fault

, which will lead to kernel page fault:
Quota error (device sda): qtree_write_dquot: Error -8000 occurred while creating quota

 BUG: unable to handle page fault for address: ffffffffffffe120
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 Oops: 0002 [#1] PREEMPT SMP
 CPU: 0 PID: 5974 Comm: chown Not tainted 6.0.0-rc1-00004
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
 RIP: 0010:_raw_spin_lock+0x3a/0x90
 Call Trace:
  dquot_add_inodes+0x28/0x270
  __dquot_transfer+0x377/0x840
  dquot_transfer+0xde/0x540
  ext4_setattr+0x405/0x14d0
  notify_change+0x68e/0x9f0
  chown_common+0x300/0x430
  __x64_sys_fchownat+0x29/0x40

In order to avoid accessing invalid quota memory address, this patch adds block number checking of next/prev free block read from quota file.

Fetch a reproducer in [Link].

---
 fs/quota/quota_tree.c |   38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
fs/quota/quota_tree.c +38 -0
@@ -80,6 +80,35 @@ static ssize_t write_blk(struct qtree_me
 	return ret;
 }
 
+static inline int do_check_range(struct super_block *sb, const char *val_name,
+				 uint val, uint min_val, uint max_val)
+{
+	if (val < min_val || val > max_val) {
+		quota_error(sb, "Getting %s %u out of range %u-%u",
+			    val_name, val, min_val, max_val);
+		return -EUCLEAN;
+	}
+
+	return 0;
+}
+
+static int check_dquot_block_header(struct qtree_mem_dqinfo *info,
+				    struct qt_disk_dqdbheader *dh)
+{
+	int err = 0;
+
+	err = do_check_range(info->dqi_sb, "dqdh_next_free",
+			     le32_to_cpu(dh->dqdh_next_free), 0,
+			     info->dqi_blocks - 1);
+	if (err)
+		return err;
+	err = do_check_range(info->dqi_sb, "dqdh_prev_free",
+			     le32_to_cpu(dh->dqdh_prev_free), 0,
+			     info->dqi_blocks - 1);
+
+	return err;
+}
+
 /* Remove empty block from list and return it */
 static int get_free_dqblk(struct qtree_mem_dqinfo *info)
 {
@@ -94,6 +123,9 @@ static int get_free_dqblk(struct qtree_m
 		ret = read_blk(info, blk, buf);
 		if (ret < 0)
 			goto out_buf;
+		ret = check_dquot_block_header(info, dh);
+		if (ret)
+			goto out_buf;
 		info->dqi_free_blk = le32_to_cpu(dh->dqdh_next_free);
 	}
 	else {
@@ -241,6 +273,9 @@ static uint find_free_dqentry(struct qtr
 		*err = read_blk(info, blk, buf);
 		if (*err < 0)
 			goto out_buf;
+		*err = check_dquot_block_header(info, dh);
+		if (*err)
+			goto out_buf;
 	} else {
 		blk = get_free_dqblk(info);
 		if ((int)blk < 0) {
@@ -433,6 +468,9 @@ static int free_dqentry(struct qtree_mem
 		goto out_buf;
 	}
 	dh = (struct qt_disk_dqdbheader *)buf;
+	ret = check_dquot_block_header(info, dh);
+	if (ret)
+		goto out_buf;
 	le16_add_cpu(&dh->dqdh_entries, -1);
 	if (!le16_to_cpu(dh->dqdh_entries)) {	/* Block got free? */
 		ret = remove_free_dqentry(info, buf, blk);
author maintainer
#74 lore raw

PATCH 74/255 bpf: Ensure correct locking around vulnerable function find_vpid()

In reply to Greg Kroah-Hartman

From: Lee Jones <[email protected]>

[ Upstream commit 83c10cc362d91c0d8d25e60779ee52fdbbf3894d ]

The documentation for find_vpid() clearly states:

"Must be called with the tasklist_lock or rcu_read_lock() held."

Presently we do neither for find_vpid() instance in bpf_task_fd_query(). Add proper rcu_read_lock/unlock() to fix the issue.

Fixes 41bdc4b40ed6f ("bpf: introduce bpf subcommand BPF_TASK_FD_QUERY")
---
 kernel/bpf/syscall.c | 2 ++
 1 file changed, 2 insertions(+)
kernel/bpf/syscall.c +2 -0
index 9ebdcdaa5f16..de788761b708 100644
@@ -2787,7 +2787,9 @@ static int bpf_task_fd_query(const union bpf_attr *attr,
 	if (attr->task_fd_query.flags != 0)
 		return -EINVAL;
 
+	rcu_read_lock();
 	task = get_pid_task(find_vpid(pid), PIDTYPE_PID);
+	rcu_read_unlock();
 	if (!task)
 		return -ENOENT;
 
Signature · 1 line
2.35.1
author maintainer
#8 lore raw

PATCH 8/255 ALSA: hda/realtek: Add Intel Reference SSID to support headset keys

In reply to Greg Kroah-Hartman

From: Saranya Gopal <[email protected]>

commit 4f2e56a59b9947b3e698d3cabcb858765c12b1e8 upstream.

This patch fixes the issue with 3.5mm headset keys on RPL-P platform.

[ Rearranged the entry in SSID order by tiwai ]

---
 sound/pci/hda/patch_realtek.c |    1 +
 1 file changed, 1 insertion(+)
sound/pci/hda/patch_realtek.c +1 -0
@@ -8302,6 +8302,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x10ec, 0x10f2, "Intel Reference board", ALC700_FIXUP_INTEL_REFERENCE),
 	SND_PCI_QUIRK(0x10ec, 0x118c, "Medion EE4254 MD62100", ALC256_FIXUP_MEDION_HEADSET_NO_PRESENCE),
 	SND_PCI_QUIRK(0x10ec, 0x1230, "Intel Reference board", ALC295_FIXUP_CHROME_BOOK),
+	SND_PCI_QUIRK(0x10ec, 0x124c, "Intel Reference board", ALC295_FIXUP_CHROME_BOOK),
 	SND_PCI_QUIRK(0x10ec, 0x1252, "Intel Reference board", ALC295_FIXUP_CHROME_BOOK),
 	SND_PCI_QUIRK(0x10ec, 0x1254, "Intel Reference board", ALC295_FIXUP_CHROME_BOOK),
 	SND_PCI_QUIRK(0x10f7, 0x8338, "Panasonic CF-SZ6", ALC269_FIXUP_HEADSET_MODE),
author maintainer
#145 lore raw

PATCH 132/255 tty: xilinx_uartps: Fix the ignore_status

In reply to Greg Kroah-Hartman

From: Shubhrajyoti Datta <[email protected]>

[ Upstream commit b8a6c3b3d4654fba19881cc77da61eac29f57cae ]

Currently the ignore_status is not considered in the isr. Add a check to add the ignore_status.

Fixes 61ec9016988f ("tty/serial: add support for Xilinx PS UART")
---
 drivers/tty/serial/xilinx_uartps.c | 2 ++
 1 file changed, 2 insertions(+)
drivers/tty/serial/xilinx_uartps.c +2 -0
index a1409251fbcc..6842999072c5 100644
@@ -369,6 +369,8 @@ static irqreturn_t cdns_uart_isr(int irq, void *dev_id)
 		isrstatus &= ~CDNS_UART_IXR_TXEMPTY;
 	}
 
+	isrstatus &= port->read_status_mask;
+	isrstatus &= ~port->ignore_status_mask;
 	/*
 	 * Skip RX processing if RX is disabled as RXEMPTY will never be set
 	 * as read bytes will not be removed from the FIFO.
Signature · 1 line
2.35.1
author maintainer
#119 lore raw

PATCH 106/255 ASoC: wm5102: Fix PM disable depth imbalance in wm5102_probe

In reply to Greg Kroah-Hartman

From: Zhang Qilong <[email protected]>

[ Upstream commit fcbb60820cd3008bb44334a0395e5e57ccb77329 ]

The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced according to context. We fix it by moving pm_runtime_enable to the endding of wm5102_probe.

Fixes 93e8791dd34ca ("ASoC: wm5102: Initial driver")
---
 sound/soc/codecs/wm5102.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
sound/soc/codecs/wm5102.c +3 -3
index d6d4b4121369..c5667b149c70 100644
@@ -2084,9 +2084,6 @@ static int wm5102_probe(struct platform_device *pdev)
 		regmap_update_bits(arizona->regmap, wm5102_digital_vu[i],
 				   WM5102_DIG_VU, WM5102_DIG_VU);
 
-	pm_runtime_enable(&pdev->dev);
-	pm_runtime_idle(&pdev->dev);
-
 	ret = arizona_request_irq(arizona, ARIZONA_IRQ_DSP_IRQ1,
 				  "ADSP2 Compressed IRQ", wm5102_adsp2_irq,
 				  wm5102);
@@ -2119,6 +2116,9 @@ static int wm5102_probe(struct platform_device *pdev)
 		goto err_spk_irqs;
 	}
 
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_idle(&pdev->dev);
+
 	return ret;
 
 err_spk_irqs:
Signature · 1 line
2.35.1
author maintainer
#146 lore raw

PATCH 133/255 media: xilinx: vipp: Fix refcount leak in xvip_graph_dma_init

In reply to Greg Kroah-Hartman

From: Miaoqian Lin <[email protected]>

[ Upstream commit 1c78f19c3a0ea312a8178a6bfd8934eb93e9b10a ]

of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

Fixes df3305156f98 ("[media] v4l: xilinx: Add Xilinx Video IP core")
---
 drivers/media/platform/xilinx/xilinx-vipp.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
drivers/media/platform/xilinx/xilinx-vipp.c +5 -4
index cc2856efea59..f2b0c490187c 100644
@@ -472,7 +472,7 @@ static int xvip_graph_dma_init(struct xvip_composite_device *xdev)
 {
 	struct device_node *ports;
 	struct device_node *port;
-	int ret;
+	int ret = 0;
 
 	ports = of_get_child_by_name(xdev->dev->of_node, "ports");
 	if (ports == NULL) {
@@ -482,13 +482,14 @@ static int xvip_graph_dma_init(struct xvip_composite_device *xdev)
 
 	for_each_child_of_node(ports, port) {
 		ret = xvip_graph_dma_init_one(xdev, port);
-		if (ret < 0) {
+		if (ret) {
 			of_node_put(port);
-			return ret;
+			break;
 		}
 	}
 
-	return 0;
+	of_node_put(ports);
+	return ret;
 }
 
 static void xvip_graph_cleanup(struct xvip_composite_device *xdev)
Signature · 1 line
2.35.1
author maintainer
#161 lore raw

PATCH 148/255 usb: gadget: function: fix dangling pnp_string in f_printer.c

In reply to Greg Kroah-Hartman

From: Albert Briscoe <[email protected]>

[ Upstream commit 24b7ba2f88e04800b54d462f376512e8c41b8a3c ]

When opts->pnp_string is changed with configfs, new memory is allocated for the string. It does not, however, update dev->pnp_string, even though the memory is freed. When rquesting the string, the host then gets old or corrupted data rather than the new string. The ieee 1284 id string should be allowed to change while the device is connected.

The bug was introduced in commit fdc01cc286be ("usb: gadget: printer:
Remove pnp_string static buffer"), which changed opts->pnp_string from a char[] to a char*.
This patch changes dev->pnp_string from a char* to a char** pointing to opts->pnp_string.

Fixes fdc01cc286be ("usb: gadget: printer: Remove pnp_string static buffer")
---
 drivers/usb/gadget/function/f_printer.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
drivers/usb/gadget/function/f_printer.c +6 -6
index 2a1868b2d24c..dd5eb6202fe1 100644
@@ -87,7 +87,7 @@ struct printer_dev {
 	u8			printer_cdev_open;
 	wait_queue_head_t	wait;
 	unsigned		q_len;
-	char			*pnp_string;	/* We don't own memory! */
+	char			**pnp_string;	/* We don't own memory! */
 	struct usb_function	function;
 };
 
@@ -963,16 +963,16 @@ static int printer_func_setup(struct usb_function *f,
 			if ((wIndex>>8) != dev->interface)
 				break;
 
-			if (!dev->pnp_string) {
+			if (!*dev->pnp_string) {
 				value = 0;
 				break;
 			}
-			value = strlen(dev->pnp_string);
+			value = strlen(*dev->pnp_string);
 			buf[0] = (value >> 8) & 0xFF;
 			buf[1] = value & 0xFF;
-			memcpy(buf + 2, dev->pnp_string, value);
+			memcpy(buf + 2, *dev->pnp_string, value);
 			DBG(dev, "1284 PNP String: %x %s\n", value,
-			    dev->pnp_string);
+			    *dev->pnp_string);
 			break;
 
 		case GET_PORT_STATUS: /* Get Port Status */
@@ -1435,7 +1435,7 @@ static struct usb_function *gprinter_alloc(struct usb_function_instance *fi)
 	kref_init(&dev->kref);
 	++opts->refcnt;
 	dev->minor = opts->minor;
-	dev->pnp_string = opts->pnp_string;
+	dev->pnp_string = &opts->pnp_string;
 	dev->q_len = opts->q_len;
 	mutex_unlock(&opts->lock);
 
Signature · 1 line
2.35.1
author maintainer
#173 lore raw

PATCH 160/255 mfd: lp8788: Fix an error handling path in lp8788_irq_init() and lp8788_irq_init()

In reply to Greg Kroah-Hartman

From: Christophe JAILLET <[email protected]>

[ Upstream commit 557244f6284f30613f2d61f14b579303165876c3 ]

In lp8788_irq_init(), if an error occurs after a successful irq_domain_add_linear() call, it must be undone by a corresponding irq_domain_remove() call.

irq_domain_remove() should also be called in lp8788_irq_exit() for the same reason.

---
 drivers/mfd/lp8788-irq.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/mfd/lp8788-irq.c +3 -0
index 348439a3fbbd..39006297f3d2 100644
@@ -175,6 +175,7 @@ int lp8788_irq_init(struct lp8788 *lp, int irq)
 				IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 				"lp8788-irq", irqd);
 	if (ret) {
+		irq_domain_remove(lp->irqdm);
 		dev_err(lp->dev, "failed to create a thread for IRQ_N\n");
 		return ret;
 	}
@@ -188,4 +189,6 @@ void lp8788_irq_exit(struct lp8788 *lp)
 {
 	if (lp->irq)
 		free_irq(lp->irq, lp->irqdm);
+	if (lp->irqdm)
+		irq_domain_remove(lp->irqdm);
 }
Signature · 1 line
2.35.1
author maintainer
#200 lore raw

PATCH 187/255 powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue

In reply to Greg Kroah-Hartman

From: Chao Qin <[email protected]>

[ Upstream commit 2d93540014387d1c73b9ccc4d7895320df66d01b ]

When value < time_unit, the parameter of ilog2() will be zero and the return value is -1. u64(-1) is too large for shift exponent and then will trigger shift-out-of-bounds:

shift exponent 18446744073709551615 is too large for 32-bit type 'int'

Call Trace:
 rapl_compute_time_window_core
 rapl_write_data_raw
 set_time_window
 store_constraint_time_window_us
---
 drivers/powercap/intel_rapl_common.c | 3 +++
 1 file changed, 3 insertions(+)
drivers/powercap/intel_rapl_common.c +3 -0
index 925b0004a0ed..d5a505f32260 100644
@@ -885,6 +885,9 @@ static u64 rapl_compute_time_window_core(struct rapl_package *rp, u64 value,
 		y = value & 0x1f;
 		value = (1 << y) * (4 + f) * rp->time_unit / 4;
 	} else {
+		if (value < rp->time_unit)
+			return 0;
+
 		do_div(value, rp->time_unit);
 		y = ilog2(value);
 		f = div64_u64(4 * (value - (1 << y)), 1 << y);
Signature · 1 line
2.35.1
author maintainer
#230 lore raw

PATCH 215/255 drm: panel-orientation-quirks: Add quirk for Anbernic Win600

In reply to Greg Kroah-Hartman

From: Maya Matuszczyk <[email protected]>

[ Upstream commit 770e19076065e079a32f33eb11be2057c87f1cde ]

This device is another x86 gaming handheld, and as (hopefully) there is only one set of DMI IDs it's using DMI_EXACT_MATCH

---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)
drivers/gpu/drm/drm_panel_orientation_quirks.c +6 -0
index f5ab891731d0..083273736c83 100644
@@ -128,6 +128,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* Anbernic Win600 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Win600"),
+		},
+		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* Asus T100HA */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
Signature · 1 line
2.35.1
author maintainer
#46 lore raw

PATCH 46/255 ftrace: Properly unset FTRACE_HASH_FL_MOD

In reply to Greg Kroah-Hartman

From: Zheng Yejian <[email protected]>

commit 0ce0638edf5ec83343302b884fa208179580700a upstream.

When executing following commands like what document said, but the log "#### all functions enabled ####" was not shown as expect:
1. Set a 'mod' filter:

    $ echo 'write*:mod:ext3' > /sys/kernel/tracing/set_ftrace_filter
  2. Invert above filter:
    $ echo '!write*:mod:ext3' >> /sys/kernel/tracing/set_ftrace_filter
  3. Read the file:
    $ cat /sys/kernel/tracing/set_ftrace_filter

By some debugging, I found that flag FTRACE_HASH_FL_MOD was not unset after inversion like above step 2 and then result of ftrace_hash_empty() is incorrect.

Fixes 8c08f0d5c6fb ("ftrace: Have cached module filters be an active filter")
---
 kernel/trace/ftrace.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
kernel/trace/ftrace.c +6 -2
@@ -5084,8 +5084,12 @@ int ftrace_regex_release(struct inode *i
 
 		if (filter_hash) {
 			orig_hash = &iter->ops->func_hash->filter_hash;
-			if (iter->tr && !list_empty(&iter->tr->mod_trace))
-				iter->hash->flags |= FTRACE_HASH_FL_MOD;
+			if (iter->tr) {
+				if (list_empty(&iter->tr->mod_trace))
+					iter->hash->flags &= ~FTRACE_HASH_FL_MOD;
+				else
+					iter->hash->flags |= FTRACE_HASH_FL_MOD;
+			}
 		} else
 			orig_hash = &iter->ops->func_hash->notrace_hash;
 
author maintainer
#131 lore raw

PATCH 118/255 iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX

In reply to Greg Kroah-Hartman

From: Claudiu Beznea <[email protected]>

[ Upstream commit bb73d5d9164c57c4bb916739a98e5cd8e0a5ed8c ]

All ADC HW versions handled by this driver (SAMA5D2, SAM9X60, SAMA7G5) have MR.TRACKTIM on 4 bits. Fix AT91_SAMA5D2_MR_TRACKTIM_MAX to reflect this.

Fixes 27e177190891 ("iio:adc:at91_adc8xx: introduce new atmel adc driver")
---
 drivers/iio/adc/at91-sama5d2_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/iio/adc/at91-sama5d2_adc.c +1 -1
index 8854da453669..090cc1e8b4ea 100644
@@ -73,7 +73,7 @@
 #define	AT91_SAMA5D2_MR_ANACH		BIT(23)
 /* Tracking Time */
 #define	AT91_SAMA5D2_MR_TRACKTIM(v)	((v) << 24)
-#define	AT91_SAMA5D2_MR_TRACKTIM_MAX	0xff
+#define	AT91_SAMA5D2_MR_TRACKTIM_MAX	0xf
 /* Transfer Time */
 #define	AT91_SAMA5D2_MR_TRANSFER(v)	((v) << 28)
 #define	AT91_SAMA5D2_MR_TRANSFER_MAX	0x3
Signature · 1 line
2.35.1
author maintainer
#261 lore raw

PATCH 246/255 perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc

In reply to Greg Kroah-Hartman

From: Adrian Hunter <[email protected]>

commit 5a3d47071f0ced0431ef82a5fb6bd077ed9493db upstream.

uClibc segfaulted because NULL was passed as the format to fprintf().

That happened because one of the format strings was missing and intel_pt_print_info() didn't check that before calling fprintf().

Add the missing format string, and check format is not NULL before calling fprintf().

Fixes 11fa7cb86b56d361 ("perf tools: Pass Intel PT information for decoding MTC and CYC")
Cc Adrian Hunter <[email protected]>
Cc Ian Rogers <[email protected]>
Cc Jiri Olsa <[email protected]>
---
 tools/perf/util/intel-pt.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
tools/perf/util/intel-pt.c +7 -2
@@ -3038,6 +3038,7 @@ static const char * const intel_pt_info_
 	[INTEL_PT_SNAPSHOT_MODE]	= "  Snapshot mode       %"PRId64"\n",
 	[INTEL_PT_PER_CPU_MMAPS]	= "  Per-cpu maps        %"PRId64"\n",
 	[INTEL_PT_MTC_BIT]		= "  MTC bit             %#"PRIx64"\n",
+	[INTEL_PT_MTC_FREQ_BITS]	= "  MTC freq bits       %#"PRIx64"\n",
 	[INTEL_PT_TSC_CTC_N]		= "  TSC:CTC numerator   %"PRIu64"\n",
 	[INTEL_PT_TSC_CTC_D]		= "  TSC:CTC denominator %"PRIu64"\n",
 	[INTEL_PT_CYC_BIT]		= "  CYC bit             %#"PRIx64"\n",
@@ -3052,8 +3053,12 @@ static void intel_pt_print_info(__u64 *a
 	if (!dump_trace)
 		return;
 
-	for (i = start; i <= finish; i++)
-		fprintf(stdout, intel_pt_info_fmts[i], arr[i]);
+	for (i = start; i <= finish; i++) {
+		const char *fmt = intel_pt_info_fmts[i];
+
+		if (fmt)
+			fprintf(stdout, fmt, arr[i]);
+	}
 }
 
 static void intel_pt_print_info_str(const char *name, const char *str)
author maintainer
#36 lore raw

PATCH 36/255 f2fs: increase the limit for reserve_root

In reply to Greg Kroah-Hartman

From: Jaegeuk Kim <[email protected]>

commit da35fe96d12d15779f3cb74929b7ed03941cf983 upstream.

This patch increases the threshold that limits the reserved root space from 0.2% to 12.5% by using simple shift operation.

Typically Android sets 128MB, but if the storage capacity is 32GB, 0.2% which is around 64MB becomes too small. Let's relax it.

---
 fs/f2fs/super.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
fs/f2fs/super.c +2 -2
@@ -255,10 +255,10 @@ static int f2fs_sb_read_encoding(const s
 
 static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
 {
-	block_t limit = min((sbi->user_block_count << 1) / 1000,
+	block_t limit = min((sbi->user_block_count >> 3),
 			sbi->user_block_count - sbi->reserved_blocks);
 
-	/* limit is 0.2% */
+	/* limit is 12.5% */
 	if (test_opt(sbi, RESERVE_ROOT) &&
 			F2FS_OPTION(sbi).root_reserved_blocks > limit) {
 		F2FS_OPTION(sbi).root_reserved_blocks = limit;
author maintainer
#163 lore raw

PATCH 150/255 tty: serial: fsl_lpuart: disable dma rx/tx use flags in lpuart_dma_shutdown

In reply to Greg Kroah-Hartman

From: Sherry Sun <[email protected]>

[ Upstream commit 316ae95c175a7d770d1bfe4c011192712f57aa4a ]

lpuart_dma_shutdown tears down lpuart dma, but lpuart_flush_buffer can still occur which in turn tries to access dma apis if lpuart_dma_tx_use flag is true. At this point since dma is torn down, these dma apis can abort. Set lpuart_dma_tx_use and the corresponding rx flag lpuart_dma_rx_use to false in lpuart_dma_shutdown so that dmas are not accessed after they are relinquished.

Otherwise, when try to kill btattach, kernel may panic. This patch may fix this issue.

root@imx8ulpevk:~# btattach -B /dev/ttyLP2 -S 115200
^C[   90.182296] Internal error: synchronous external abort: 96000210 [#1] PREEMPT SMP
[   90.189806] Modules linked in: moal(O) mlan(O)
[   90.194258] CPU: 0 PID: 503 Comm: btattach Tainted: G           O      5.15.32-06136-g34eecdf2f9e4 #37
[   90.203554] Hardware name: NXP i.MX8ULP 9X9 EVK (DT)
[   90.208513] pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   90.215470] pc : fsl_edma3_disable_request+0x8/0x60
[   90.220358] lr : fsl_edma3_terminate_all+0x34/0x20c
[   90.225237] sp : ffff800013f0bac0
[   90.228548] x29: ffff800013f0bac0 x28: 0000000000000001 x27: ffff000008404800
[   90.235681] x26: ffff000008404960 x25: ffff000008404a08 x24: ffff000008404a00
[   90.242813] x23: ffff000008404a60 x22: 0000000000000002 x21: 0000000000000000
[   90.249946] x20: ffff800013f0baf8 x19: ffff00000559c800 x18: 0000000000000000
[   90.257078] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[   90.264211] x14: 0000000000000003 x13: 0000000000000000 x12: 0000000000000040
[   90.271344] x11: ffff00000600c248 x10: ffff800013f0bb10 x9 : ffff000057bcb090
[   90.278477] x8 : fffffc0000241a08 x7 : ffff00000534ee00 x6 : ffff000008404804
[   90.285609] x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff0000055b3480
[   90.292742] x2 : ffff8000135c0000 x1 : ffff00000534ee00 x0 : ffff00000559c800
[   90.299876] Call trace:
[   90.302321]  fsl_edma3_disable_request+0x8/0x60
[   90.306851]  lpuart_flush_buffer+0x40/0x160
[   90.311037]  uart_flush_buffer+0x88/0x120
[   90.315050]  tty_driver_flush_buffer+0x20/0x30
[   90.319496]  hci_uart_flush+0x44/0x90
[   90.323162]  +0x34/0x12c
[   90.327253]  tty_ldisc_close+0x38/0x70
[   90.331005]  tty_ldisc_release+0xa8/0x190
[   90.335018]  tty_release_struct+0x24/0x8c
[   90.339022]  tty_release+0x3ec/0x4c0
[   90.342593]  __fput+0x70/0x234
[   90.345652]  ____fput+0x14/0x20
[   90.348790]  task_work_run+0x84/0x17c
[   90.352455]  do_exit+0x310/0x96c
[   90.355688]  do_group_exit+0x3c/0xa0
[   90.359259]  __arm64_sys_exit_group+0x1c/0x20
[   90.363609]  invoke_syscall+0x48/0x114
[   90.367362]  el0_svc_common.constprop.0+0xd4/0xfc
[   90.372068]  do_el0_svc+0x2c/0x94
[   90.375379]  el0_svc+0x28/0x80
[   90.378438]  el0t_64_sync_handler+0xa8/0x130
[   90.382711]  el0t_64_sync+0x1a0/0x1a4
[   90.386376] Code: 17ffffda d503201f d503233f f9409802 (b9400041)
[   90.392467] ---[ end trace 2f60524b4a43f1f6 ]---
[   90.397073] note: btattach[503] exited with preempt_count 1
[   90.402636] Fixing recursive fault but reboot is needed!
Fixes 6250cc30c4c4 ("tty: serial: fsl_lpuart: Use scatter/gather DMA for Tx")
---
 drivers/tty/serial/fsl_lpuart.c | 2 ++
 1 file changed, 2 insertions(+)
drivers/tty/serial/fsl_lpuart.c +2 -0
index f3f582c3dc87..e84cef42f4b7 100644
@@ -1593,6 +1593,7 @@ static void lpuart_dma_shutdown(struct lpuart_port *sport)
 	if (sport->lpuart_dma_rx_use) {
 		del_timer_sync(&sport->lpuart_timer);
 		lpuart_dma_rx_free(&sport->port);
+		sport->lpuart_dma_rx_use = false;
 	}
 
 	if (sport->lpuart_dma_tx_use) {
@@ -1601,6 +1602,7 @@ static void lpuart_dma_shutdown(struct lpuart_port *sport)
 			sport->dma_tx_in_progress = false;
 			dmaengine_terminate_all(sport->dma_tx_chan);
 		}
+		sport->lpuart_dma_tx_use = false;
 	}
 }
 
Signature · 1 line
2.35.1
author maintainer
#197 lore raw

PATCH 184/255 f2fs: fix race condition on setting FI_NO_EXTENT flag

In reply to Greg Kroah-Hartman

From: Zhang Qilong <[email protected]>

[ Upstream commit 07725adc55c0a414c10acb5c8c86cea34b95ddef ]

The following scenarios exist.
process A: process B:
->f2fs_drop_extent_tree ->f2fs_update_extent_cache_range

                          ->f2fs_update_extent_tree_range
                           ->write_lock
 ->set_inode_flag
                           ->is_inode_flag_set
                           ->__free_extent_tree // Shouldn't
                                                // have been
                                                // cleaned up
                                                // here

->write_lock

In this case, the "FI_NO_EXTENT" flag is set between f2fs_update_extent_tree_range and is_inode_flag_set by other process. it leads to clearing the whole exten tree which should not have happened. And we fix it by move the setting it to the range of write_lock.

Fixes 5f281fab9b9a3 ("f2fs: disable extent_cache for fcollapse/finsert inodes")
---
 fs/f2fs/extent_cache.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
fs/f2fs/extent_cache.c +1 -2
index e60078460ad1..05b17a741ccc 100644
@@ -729,9 +729,8 @@ void f2fs_drop_extent_tree(struct inode *inode)
 	if (!f2fs_may_extent_tree(inode))
 		return;
 
-	set_inode_flag(inode, FI_NO_EXTENT);
-
 	write_lock(&et->lock);
+	set_inode_flag(inode, FI_NO_EXTENT);
 	__free_extent_tree(sbi, et);
 	if (et->largest.len) {
 		et->largest.len = 0;
Signature · 1 line
2.35.1
author maintainer
#220 lore raw

PATCH 205/255 wifi: rt2x00: set SoC wmac clock register

In reply to Greg Kroah-Hartman

From: Daniel Golle <[email protected]>

[ Upstream commit cbde6ed406a51092d9e8a2df058f5f8490f27443 ]

Instead of using the default value 33 (pci), set US_CYC_CNT init based on Programming guide:
If available, set chipset bus clock with fallback to cpu clock/3.

---
 .../net/wireless/ralink/rt2x00/rt2800lib.c    | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
drivers/net/wireless/ralink/rt2x00/rt2800lib.c +21 -0
index ab0d673253f0..c303d52b6820 100644
@@ -6115,6 +6115,27 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
 		reg = rt2800_register_read(rt2x00dev, US_CYC_CNT);
 		rt2x00_set_field32(&reg, US_CYC_CNT_CLOCK_CYCLE, 125);
 		rt2800_register_write(rt2x00dev, US_CYC_CNT, reg);
+	} else if (rt2x00_is_soc(rt2x00dev)) {
+		struct clk *clk = clk_get_sys("bus", NULL);
+		int rate;
+
+		if (IS_ERR(clk)) {
+			clk = clk_get_sys("cpu", NULL);
+
+			if (IS_ERR(clk)) {
+				rate = 125;
+			} else {
+				rate = clk_get_rate(clk) / 3000000;
+				clk_put(clk);
+			}
+		} else {
+			rate = clk_get_rate(clk) / 1000000;
+			clk_put(clk);
+		}
+
+		reg = rt2800_register_read(rt2x00dev, US_CYC_CNT);
+		rt2x00_set_field32(&reg, US_CYC_CNT_CLOCK_CYCLE, rate);
+		rt2800_register_write(rt2x00dev, US_CYC_CNT, reg);
 	}
 
 	reg = rt2800_register_read(rt2x00dev, HT_FBK_CFG0);
Signature · 1 line
2.35.1
author maintainer
#237 lore raw

PATCH 222/255 ARM: dts: imx6qp: add missing properties for sram

In reply to Greg Kroah-Hartman

From: Alexander Stein <[email protected]>

[ Upstream commit 088fe5237435ee2f7ed4450519b2ef58b94c832f ]

All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@940000: '#address-cells' is a required property sram@940000: '#size-cells' is a required property sram@940000: 'ranges' is a required property

---
 arch/arm/boot/dts/imx6qp.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)
arch/arm/boot/dts/imx6qp.dtsi +6 -0
index d91f92f944c5..3633383db706 100644
@@ -9,12 +9,18 @@
 		ocram2: sram@940000 {
 			compatible = "mmio-sram";
 			reg = <0x00940000 0x20000>;
+			ranges = <0 0x00940000 0x20000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
 		ocram3: sram@960000 {
 			compatible = "mmio-sram";
 			reg = <0x00960000 0x20000>;
+			ranges = <0 0x00960000 0x20000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
Signature · 1 line
2.35.1
author maintainer
#187 lore raw

PATCH 174/255 x86/hyperv: Fix struct hv_enlightened_vmcs definition

In reply to Greg Kroah-Hartman

From: Vitaly Kuznetsov <[email protected]>

[ Upstream commit ea9da788a61e47e7ab9cbad397453e51cd82ac0d ]

Section 1.9 of TLFS v6.0b says:

"All structures are padded in such a way that fields are aligned naturally (that is, an 8-byte field is aligned to an offset of 8 bytes and so on)".

'struct enlightened_vmcs' has a glitch:

...

        struct {
                u32                nested_flush_hypercall:1; /*   836: 0  4 */
                u32                msr_bitmap:1;         /*   836: 1  4 */
                u32                reserved:30;          /*   836: 2  4 */
        } hv_enlightenments_control;                     /*   836     4 */
        u32                        hv_vp_id;             /*   840     4 */
        u64                        hv_vm_id;             /*   844     8 */
        u64                        partition_assist_page; /*   852     8 */

...

And the observed values in 'partition_assist_page' make no sense at all. Fix the layout by padding the structure properly.

---
 arch/x86/include/asm/hyperv-tlfs.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
arch/x86/include/asm/hyperv-tlfs.h +2 -2
index 7741e211f7f5..333e61e6dbe7 100644
@@ -721,7 +721,7 @@ struct hv_enlightened_vmcs {
 	u64 guest_rip;
 
 	u32 hv_clean_fields;
-	u32 hv_padding_32;
+	u32 padding32_1;
 	u32 hv_synthetic_controls;
 	struct {
 		u32 nested_flush_hypercall:1;
@@ -729,7 +729,7 @@ struct hv_enlightened_vmcs {
 		u32 reserved:30;
 	}  __packed hv_enlightenments_control;
 	u32 hv_vp_id;
-
+	u32 padding32_2;
 	u64 hv_vm_id;
 	u64 partition_assist_page;
 	u64 padding64_4[4];
Signature · 1 line
2.35.1
author maintainer
#205 lore raw

PATCH 192/255 bpftool: Clear errno after libcaps checks

In reply to Greg Kroah-Hartman

From: Quentin Monnet <[email protected]>

[ Upstream commit cea558855c39b7f1f02ff50dcf701ca6596bc964 ]

When bpftool is linked against libcap, the library runs a "constructor" function to compute the number of capabilities of the running kernel [0], at the beginning of the execution of the program. As part of this, it performs multiple calls to prctl(). Some of these may fail, and set errno to a non-zero value:

    # strace -e prctl ./bpftool version
    prctl(PR_CAPBSET_READ, CAP_MAC_OVERRIDE) = 1
    prctl(PR_CAPBSET_READ, 0x30 /* CAP_??? */) = -1 EINVAL (Invalid argument)
    prctl(PR_CAPBSET_READ, CAP_CHECKPOINT_RESTORE) = 1
    prctl(PR_CAPBSET_READ, 0x2c /* CAP_??? */) = -1 EINVAL (Invalid argument)
    prctl(PR_CAPBSET_READ, 0x2a /* CAP_??? */) = -1 EINVAL (Invalid argument)
    prctl(PR_CAPBSET_READ, 0x29 /* CAP_??? */) = -1 EINVAL (Invalid argument)
    ** fprintf added at the top of main(): we have errno == 1
    ./bpftool v7.0.0
    using libbpf v1.0
    features: libbfd, libbpf_strict, skeletons
    +++ exited with 0 +++

This has been addressed in libcap 2.63 [1], but until this version is available everywhere, we can fix it on bpftool side.

Let's clean errno at the beginning of the main() function, to make sure that these checks do not interfere with the batch mode, where we error out if errno is set after a bpftool command.

[0] https://git.kernel.org/pub/scm/libs/libcap/libcap.git/tree/libcap/cap_alloc.c?h=libcap-2.65#n20
[1] https://git.kernel.org/pub/scm/libs/libcap/libcap.git/commit/?id=f25a1b7e69f7b33e6afb58b3e38f3450b7d2d9a0

---
 tools/bpf/bpftool/main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
tools/bpf/bpftool/main.c +10 -0
index 4b03983acbef..35984bd354cb 100644
@@ -364,6 +364,16 @@ int main(int argc, char **argv)
 
 	setlinebuf(stdout);
 
+#ifdef USE_LIBCAP
+	/* Libcap < 2.63 hooks before main() to compute the number of
+	 * capabilities of the running kernel, and doing so it calls prctl()
+	 * which may fail and set errno to non-zero.
+	 * Let's reset errno to make sure this does not interfere with the
+	 * batch mode.
+	 */
+	errno = 0;
+#endif
+
 	last_do_help = do_help;
 	pretty_output = false;
 	json_output = false;
Signature · 1 line
2.35.1
author maintainer
#267 lore raw

PATCH 251/255 ext4: continue to expand file system when the target size doesnt reach

In reply to Greg Kroah-Hartman

From: Jerry Lee 李修賢 <[email protected]>

commit df3cb754d13d2cd5490db9b8d536311f8413a92e upstream.

When expanding a file system from (16TiB-2MiB) to 18TiB, the operation exits early which leads to result inconsistency between resize2fs and Ext4 kernel driver.

=== before ===
○ → resize2fs /dev/mapper/thin
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/mapper/thin is mounted on /mnt/test; on-line resizing required old_desc_blocks = 2048, new_desc_blocks = 2304
The filesystem on /dev/mapper/thin is now 4831837696 (4k) blocks long.

[  865.186308] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none.
[  912.091502] dm-4: detected capacity change from 34359738368 to 38654705664
[  970.030550] dm-5: detected capacity change from 34359734272 to 38654701568
[ 1000.012751] EXT4-fs (dm-5): resizing filesystem from 4294966784 to 4831837696 blocks
[ 1000.012878] EXT4-fs (dm-5): resized filesystem to 4294967296

=== after ===

[  129.104898] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none.
[  143.773630] dm-4: detected capacity change from 34359738368 to 38654705664
[  198.203246] dm-5: detected capacity change from 34359734272 to 38654701568
[  207.918603] EXT4-fs (dm-5): resizing filesystem from 4294966784 to 4831837696 blocks
[  207.918754] EXT4-fs (dm-5): resizing filesystem from 4294967296 to 4831837696 blocks
[  207.918758] EXT4-fs (dm-5): Converting file system to meta_bg
[  207.918790] EXT4-fs (dm-5): resizing filesystem from 4294967296 to 4831837696 blocks
[  221.454050] EXT4-fs (dm-5): resized to 4658298880 blocks
[  227.634613] EXT4-fs (dm-5): resized filesystem to 4831837696
---
 fs/ext4/resize.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
fs/ext4/resize.c +1 -1
@@ -2090,7 +2090,7 @@ retry:
 			goto out;
 	}
 
-	if (ext4_blocks_count(es) == n_blocks_count)
+	if (ext4_blocks_count(es) == n_blocks_count && n_blocks_count_retry == 0)
 		goto out;
 
 	err = ext4_alloc_flex_bg_array(sb, n_group + 1);
author maintainer
#231 lore raw

PATCH 216/255 platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading

In reply to Greg Kroah-Hartman

From: Hans de Goede <[email protected]>

[ Upstream commit 2a2565272a3628e45d61625e36ef17af7af4e3de ]

On a MSI S270 with Fedora 37 x86_64 / systemd-251.4 the module does not properly autoload.

This is likely caused by issues with how systemd-udevd handles the single quote char (') which is part of the sys_vendor / chassis_vendor strings on this laptop. As a workaround remove the single quote char + everything behind it from the sys_vendor + chassis_vendor matches. This fixes the module not autoloading.

---
 drivers/platform/x86/msi-laptop.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
drivers/platform/x86/msi-laptop.c +3 -5
index 3e935303b143..0e804b6c2d24 100644
@@ -596,11 +596,10 @@ static const struct dmi_system_id msi_dmi_table[] __initconst = {
 	{
 		.ident = "MSI S270",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
+			DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
 			DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
-			DMI_MATCH(DMI_CHASSIS_VENDOR,
-				  "MICRO-STAR INT'L CO.,LTD")
+			DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT")
 		},
 		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
@@ -633,8 +632,7 @@ static const struct dmi_system_id msi_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
 			DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
-			DMI_MATCH(DMI_CHASSIS_VENDOR,
-				  "MICRO-STAR INT'L CO.,LTD")
+			DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR INT")
 		},
 		.driver_data = &quirk_old_ec_model,
 		.callback = dmi_check_cb
Signature · 1 line
2.35.1
author maintainer
#225 lore raw

PATCH 210/255 drm/nouveau/nouveau_bo: fix potential memory leak in nouveau_bo_alloc()

In reply to Greg Kroah-Hartman

From: Jianglei Nie <[email protected]>

[ Upstream commit 6dc548745d5b5102e3c53dc5097296ac270b6c69 ]

nouveau_bo_alloc() allocates a memory chunk for "nvbo" with kzalloc(). When some error occurs, "nvbo" should be released. But when WARN_ON(pi < 0)) equals true, the function return ERR_PTR without releasing the "nvbo", which will lead to a memory leak.

We should release the "nvbo" with kfree() if WARN_ON(pi < 0)) equals true.

---
 drivers/gpu/drm/nouveau/nouveau_bo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
drivers/gpu/drm/nouveau/nouveau_bo.c +3 -1
index f7603be569fc..9f9c70734180 100644
@@ -276,8 +276,10 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 flags,
 			break;
 	}
 
-	if (WARN_ON(pi < 0))
+	if (WARN_ON(pi < 0)) {
+		kfree(nvbo);
 		return ERR_PTR(-EINVAL);
+	}
 
 	/* Disable compression if suitable settings couldn't be found. */
 	if (nvbo->comp && !vmm->page[pi].comp) {
Signature · 1 line
2.35.1
author maintainer
#219 lore raw

PATCH 204/255 wifi: rt2x00: set VGC gain for both chains of MT7620

In reply to Greg Kroah-Hartman

From: Daniel Golle <[email protected]>

[ Upstream commit 0e09768c085709e10ece3b68f6ac921d3f6a9caa ]

Set bbp66 for all chains of the MT7620.

---
 drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
drivers/net/wireless/ralink/rt2x00/rt2800lib.c +2 -1
index 20491ff6bb76..ab0d673253f0 100644
@@ -5629,7 +5629,8 @@ static inline void rt2800_set_vgc(struct rt2x00_dev *rt2x00dev,
 	if (qual->vgc_level != vgc_level) {
 		if (rt2x00_rt(rt2x00dev, RT3572) ||
 		    rt2x00_rt(rt2x00dev, RT3593) ||
-		    rt2x00_rt(rt2x00dev, RT3883)) {
+		    rt2x00_rt(rt2x00dev, RT3883) ||
+		    rt2x00_rt(rt2x00dev, RT6352)) {
 			rt2800_bbp_write_with_rx_chain(rt2x00dev, 66,
 						       vgc_level);
 		} else if (rt2x00_rt(rt2x00dev, RT5592)) {
Signature · 1 line
2.35.1
author maintainer
#226 lore raw

PATCH 211/255 drm: Use size_t type for len variable in drm_copy_field()

In reply to Greg Kroah-Hartman

From: Javier Martinez Canillas <[email protected]>

[ Upstream commit 94dc3471d1b2b58b3728558d0e3f264e9ce6ff59 ]

The strlen() function returns a size_t which is an unsigned int on 32-bit arches and an unsigned long on 64-bit arches. But in the drm_copy_field() function, the strlen() return value is assigned to an 'int len' variable.

Later, the len variable is passed as copy_from_user() third argument that is an unsigned long parameter as well.

In theory, this can lead to an integer overflow via type conversion. Since the assignment happens to a signed int lvalue instead of a size_t lvalue.

In practice though, that's unlikely since the values copied are set by DRM drivers and not controlled by userspace. But using a size_t for len is the correct thing to do anyways.

---
 drivers/gpu/drm/drm_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/gpu/drm/drm_ioctl.c +1 -1
index 76b6676b0106..bde71aa67784 100644
@@ -473,7 +473,7 @@ EXPORT_SYMBOL(drm_invalid_op);
  */
 static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
 {
-	int len;
+	size_t len;
 
 	/* don't overflow userbuf */
 	len = strlen(value);
Signature · 1 line
2.35.1
author maintainer
#236 lore raw

PATCH 221/255 ARM: dts: imx6dl: add missing properties for sram

In reply to Greg Kroah-Hartman

From: Alexander Stein <[email protected]>

[ Upstream commit f5848b95633d598bacf0500e0108dc5961af88c0 ]

All 3 properties are required by sram.yaml. Fixes the dtbs_check warning:
sram@900000: '#address-cells' is a required property sram@900000: '#size-cells' is a required property sram@900000: 'ranges' is a required property

---
 arch/arm/boot/dts/imx6dl.dtsi | 3 +++
 1 file changed, 3 insertions(+)
arch/arm/boot/dts/imx6dl.dtsi +3 -0
index 2ed10310a7b7..4bde98033ff4 100644
@@ -81,6 +81,9 @@
 		ocram: sram@900000 {
 			compatible = "mmio-sram";
 			reg = <0x00900000 0x20000>;
+			ranges = <0 0x00900000 0x20000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
Signature · 1 line
2.35.1
author maintainer
#222 lore raw

PATCH 207/255 net: If sock is dead dont access socks sk_wq in sk_stream_wait_memory

In reply to Greg Kroah-Hartman

From: Liu Jian <[email protected]>

[ Upstream commit 3f8ef65af927db247418d4e1db49164d7a158fc5 ]

Fixes the below NULL pointer dereference:

[...]

  [   14.471200] Call Trace:
  [   14.471562]  <TASK>
  [   14.471882]  lock_acquire+0x245/0x2e0
  [   14.472416]  ? remove_wait_queue+0x12/0x50
  [   14.473014]  ? _raw_spin_lock_irqsave+0x17/0x50
  [   14.473681]  _raw_spin_lock_irqsave+0x3d/0x50
  [   14.474318]  ? remove_wait_queue+0x12/0x50
  [   14.474907]  remove_wait_queue+0x12/0x50
  [   14.475480]  sk_stream_wait_memory+0x20d/0x340
  [   14.476127]  ? do_wait_intr_irq+0x80/0x80
  [   14.476704]  do_tcp_sendpages+0x287/0x600
  [   14.477283]  tcp_bpf_push+0xab/0x260
  [   14.477817]  tcp_bpf_sendmsg_redir+0x297/0x500
  [   14.478461]  ? __local_bh_enable_ip+0x77/0xe0
  [   14.479096]  tcp_bpf_send_verdict+0x105/0x470
  [   14.479729]  tcp_bpf_sendmsg+0x318/0x4f0
  [   14.480311]  sock_sendmsg+0x2d/0x40
  [   14.480822]  ____sys_sendmsg+0x1b4/0x1c0
  [   14.481390]  ? copy_msghdr_from_user+0x62/0x80
  [   14.482048]  ___sys_sendmsg+0x78/0xb0
  [   14.482580]  ? vmf_insert_pfn_prot+0x91/0x150
  [   14.483215]  ? __do_fault+0x2a/0x1a0
  [   14.483738]  ? do_fault+0x15e/0x5d0
  [   14.484246]  ? __handle_mm_fault+0x56b/0x1040
  [   14.484874]  ? lock_is_held_type+0xdf/0x130
  [   14.485474]  ? find_held_lock+0x2d/0x90
  [   14.486046]  ? __sys_sendmsg+0x41/0x70
  [   14.486587]  __sys_sendmsg+0x41/0x70
  [   14.487105]  ? intel_pmu_drain_pebs_core+0x350/0x350
  [   14.487822]  do_syscall_64+0x34/0x80
  [   14.488345]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
  [...]

The test scenario has the following flow:

thread1 thread2
----------- ---------------
tcp_bpf_sendmsg
tcp_bpf_send_verdict
tcp_bpf_sendmsg_redir sock_close

    tcp_bpf_push_locked                 __sock_release
     tcp_bpf_push                         //inet_release
      do_tcp_sendpages                    sock->ops->release
       sk_stream_wait_memory          	   // tcp_close
          sk_wait_event                      sk->sk_prot->close
           release_sock(__sk);
            ***
                                                lock_sock(sk);
                                                  __tcp_close
                                                    sock_orphan(sk)
                                                      sk->sk_wq  = NULL
                                                release_sock
            ****
           lock_sock(__sk);
          remove_wait_queue(sk_sleep(sk), &wait);
             sk_sleep(sk)
             //NULL pointer dereference
             &rcu_dereference_raw(sk->sk_wq)->wait

While waiting for memory in thread1, the socket is released with its wait queue because thread2 has closed it. This caused by tcp_bpf_send_verdict didn't increase the f_count of psock->sk_redir->sk_socket->file in thread1.

We should check if SOCK_DEAD flag is set on wakeup in sk_stream_wait_memory before accessing the wait queue.

---
 net/core/stream.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
net/core/stream.c +2 -1
index a166a32b411f..a61130504827 100644
@@ -159,7 +159,8 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
 		*timeo_p = current_timeo;
 	}
 out:
-	remove_wait_queue(sk_sleep(sk), &wait);
+	if (!sock_flag(sk, SOCK_DEAD))
+		remove_wait_queue(sk_sleep(sk), &wait);
 	return err;
 
 do_error:
Signature · 1 line
2.35.1
author maintainer
#249 lore raw

PATCH 234/255 ata: libahci_platform: Sanity check the DT child nodes number

In reply to Greg Kroah-Hartman

From: Serge Semin <[email protected]>

[ Upstream commit 3c132ea6508b34956e5ed88d04936983ec230601 ]

Having greater than AHCI_MAX_PORTS (32) ports detected isn't that critical from the further AHCI-platform initialization point of view since exceeding the ports upper limit will cause allocating more resources than will be used afterwards. But detecting too many child DT-nodes doesn't seem right since it's very unlikely to have it on an ordinary platform. In accordance with the AHCI specification there can't be more than 32 ports implemented at least due to having the CAP.NP field of 5 bits wide and the PI register of dword size. Thus if such situation is found the DTB must have been corrupted and the data read from it shouldn't be reliable. Let's consider that as an erroneous situation and halt further resources allocation.

Note it's logically more correct to have the nports set only after the initialization value is checked for being sane. So while at it let's make sure nports is assigned with a correct value.

---
 drivers/ata/libahci_platform.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)
drivers/ata/libahci_platform.c +12 -2
index 8a963d2a951d..c0ac25b80a1f 100644
@@ -451,14 +451,24 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
 		}
 	}
 
-	hpriv->nports = child_nodes = of_get_child_count(dev->of_node);
+	/*
+	 * Too many sub-nodes most likely means having something wrong with
+	 * the firmware.
+	 */
+	child_nodes = of_get_child_count(dev->of_node);
+	if (child_nodes > AHCI_MAX_PORTS) {
+		rc = -EINVAL;
+		goto err_out;
+	}
 
 	/*
 	 * If no sub-node was found, we still need to set nports to
 	 * one in order to be able to use the
 	 * ahci_platform_[en|dis]able_[phys|regulators] functions.
 	 */
-	if (!child_nodes)
+	if (child_nodes)
+		hpriv->nports = child_nodes;
+	else
 		hpriv->nports = 1;
 
 	hpriv->phys = devm_kcalloc(dev, hpriv->nports, sizeof(*hpriv->phys), GFP_KERNEL);
Signature · 1 line
2.35.1