6de20111cd
commit 5600f6986628dde8881734090588474f54a540a8 upstream.
Syzbot reported warning in usb_submit_urb() which is caused by wrong
endpoint type. There was a check for the number of endpoints, but not
for the type of endpoint.
Fix it by replacing old desc.bNumEndpoints check with
usb_find_common_endpoints() helper for finding endpoints
Fail log:
usb 5-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 2 PID: 48 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
Modules linked in:
CPU: 2 PID: 48 Comm: kworker/2:2 Not tainted 5.17.0-rc6-syzkaller-00226-g07ebd38a0da2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: usb_hub_wq hub_event
...
Call Trace:
<TASK>
aiptek_open+0xd5/0x130 drivers/input/tablet/aiptek.c:830
input_open_device+0x1bb/0x320 drivers/input/input.c:629
kbd_connect+0xfe/0x160 drivers/tty/vt/keyboard.c:1593
Fixes:
|
||
|---|---|---|
| .. | ||
| acecad.c | ||
| aiptek.c | ||
| gtco.c | ||
| hanwang.c | ||
| kbtab.c | ||
| Kconfig | ||
| Makefile | ||
| pegasus_notetaker.c | ||
| wacom_serial4.c | ||