This is a note to let you know that I've just added the patch titled
usbip: vhci_hcd fix shift out-of-bounds in vhci_hub_control()
to the 4.19-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:
usbip-vhci_hcd-fix-shift-out-of-bounds-in-vhci_hub_control.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1cc5ed25bdade86de2650a82b2730108a76de20c Mon Sep 17 00:00:00 2001
From: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 24 Mar 2021 17:06:54 -0600
Subject: usbip: vhci_hcd fix shift out-of-bounds in vhci_hub_control()
From: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
commit 1cc5ed25bdade86de2650a82b2730108a76de20c upstream.
Fix shift out-of-bounds in vhci_hub_control() SetPortFeature handling.
UBSAN: shift-out-of-bounds in drivers/usb/usbip/vhci_hcd.c:605:42
shift exponent 768 is too large for 32-bit type 'int'
Reported-by: syzbot+3dea30b047f41084de66@xxxxxxxxxxxxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210324230654.34798-1-skhan@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/usbip/vhci_hcd.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -594,6 +594,8 @@ static int vhci_hub_control(struct usb_h
pr_err("invalid port number %d\n", wIndex);
goto error;
}
+ if (wValue >= 32)
+ goto error;
if (hcd->speed == HCD_USB3) {
if ((vhci_hcd->port_status[rhport] &
USB_SS_PORT_STAT_POWER) != 0) {
Patches currently in stable-queue which might be from skhan@xxxxxxxxxxxxxxxxxxx are
queue-4.19/ath10k-hold-rcu-lock-when-calling-ieee80211_find_sta.patch
queue-4.19/usbip-vhci_hcd-fix-shift-out-of-bounds-in-vhci_hub_control.patch
