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Patch "USB: lvtest: fix NULL-deref at probe" has been added to the 4.10-stable tree

PATCH [email protected] 1 participant 1 message Mar 27, 2017

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This is a note to let you know that I've just added the patch titled

USB: lvtest: fix NULL-deref at probe

to the 4.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
usb-lvtest-fix-null-deref-at-probe.patch
and it can be found in the queue-4.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 1dc56c52d2484be09c7398a5207d6b11a4256be9 Mon Sep 17 00:00:00 2001

From: Johan Hovold <[email protected]>
Date: Mon, 13 Mar 2017 13:47:49 +0100
Subject: USB: lvtest: fix NULL-deref at probe

From: Johan Hovold <[email protected]>

commit 1dc56c52d2484be09c7398a5207d6b11a4256be9 upstream.

Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer should the probed device lack endpoints.

Note that this driver does not bind to any devices by default.

Fixes ce21bfe603b3 ("USB: Add LVS Test device driver")
Cc Pratyush Anand <[email protected]>
---
 drivers/usb/misc/lvstest.c |    4 ++++
 1 file changed, 4 insertions(+)
drivers/usb/misc/lvstest.c +4 -0
@@ -366,6 +366,10 @@ static int lvs_rh_probe(struct usb_inter
 
 	hdev = interface_to_usbdev(intf);
 	desc = intf->cur_altsetting;
+
+	if (desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &desc->endpoint[0].desc;
 
 	/* valid only for SS root hub */

Patches currently in stable-queue which might be from [email protected] are

queue-4.10/usb-serial-option-add-quectel-uc15-uc20-ec21-and-ec25-modems.patch queue-4.10/input-ims-pcu-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-usbtmc-add-missing-endpoint-sanity-check.patch queue-4.10/input-cm109-validate-number-of-endpoints-before-using-them.patch queue-4.10/input-iforce-validate-number-of-endpoints-before-using-them.patch queue-4.10/mmc-ushc-fix-null-deref-at-probe.patch queue-4.10/input-kbtab-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-usbtmc-fix-probe-error-path.patch queue-4.10/input-sur40-validate-number-of-endpoints-before-using-them.patch queue-4.10/uwb-i1480-dfu-fix-null-deref-at-probe.patch queue-4.10/input-hanwang-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-idmouse-fix-null-deref-at-probe.patch queue-4.10/uwb-hwa-rc-fix-null-deref-at-probe.patch queue-4.10/usb-lvtest-fix-null-deref-at-probe.patch queue-4.10/input-yealink-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-serial-qcserial-add-dell-dw5811e.patch queue-4.10/usb-uss720-fix-null-deref-at-probe.patch queue-4.10/usb-wusbcore-fix-null-deref-at-probe.patch