Patch "xhci: fix finding correct bus_state structure for USB 3.1 hosts" has been added to the 4.13-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
xhci: fix finding correct bus_state structure for USB 3.1 hosts
to the 4.13-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:
xhci-fix-finding-correct-bus_state-structure-for-usb-3.1-hosts.patch
and it can be found in the queue-4.13 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
5a838a13c9b4e5dd188b7a6eaeb894e9358ead0cMon Sep 17 00:00:00 2001
From: Mathias Nyman <[email protected]>
Date: Mon, 18 Sep 2017 17:39:13 +0300
Subject: xhci: fix finding correct bus_state structure for USB 3.1 hosts
From: Mathias Nyman <[email protected]>
commit 5a838a13c9b4e5dd188b7a6eaeb894e9358ead0c upstream.
xhci driver keeps a bus_state structure for each hcd (usb2 and usb3)
The structure is picked based on hcd speed, but driver only compared for HCD_USB3 speed, returning the wrong bus_state for HCD_USB31 hosts.
This caused null pointer dereference errors in bus_resume function.
--- drivers/usb/host/xhci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/usb/host/xhci.h +1 -1
@@ -1674,7 +1674,7 @@ struct xhci_bus_state {static inline unsigned int hcd_index (struct usb_hcd *hcd) { -if (hcd->speed ==HCD_USB3 ) +if (hcd->speed >=HCD_USB3 )return 0 ;else return 1 ;
Patches currently in stable-queue which might be from [email protected] are
queue-4.13/usb-xhci-free-the-right-ring-in-xhci_add_endpoint.patch queue-4.13/xhci-fix-finding-correct-bus_state-structure-for-usb-3.1-hosts.patch queue-4.13/revert-xhci-limit-usb2-port-wake-support-for-amd-promontory-hosts.patch queue-4.13/xhci-set-missing-superspeedplus-link-protocol-bit-in-roothub-descriptor.patch queue-4.13/usb-host-xhci-plat-allow-sysdev-to-inherit-from-acpi.patch queue-4.13/usb-pci-quirks.c-corrected-timeout-values-used-in-handshake.patch queue-4.13/xhci-fix-wrong-endpoint-esit-value-shown-in-tracing.patch queue-4.13/xhci-fix-sleeping-with-spin_lock_irq-held-in-asmedia-1042a-workaround.patch