vulnerability
Debian: CVE-2022-49151: linux -- security update
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Feb 27, 2025 | Feb 27, 2025 | Feb 28, 2025 |
Description
In the Linux kernel, the following vulnerability has been resolved:
can: mcba_usb: properly check endpoint type
Syzbot reported warning in usb_submit_urb() which is caused by wrong
endpoint type. We should check that in endpoint is actually present to
prevent this warning.
Found pipes are now saved to struct mcba_priv and code uses them
directly instead of making pipes in place.
Fail log:
| usb 5-1: BOGUS urb xfer, pipe 3 != type 1
| WARNING: CPU: 1 PID: 49 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
| Modules linked in:
| CPU: 1 PID: 49 Comm: kworker/1:2 Not tainted 5.17.0-rc6-syzkaller-00184-g38f80f42147f #0
| Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
| Workqueue: usb_hub_wq hub_event
| RIP: 0010:usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
| ...
| Call Trace:
|
| mcba_usb_start drivers/net/can/usb/mcba_usb.c:662 [inline]
| mcba_usb_probe+0x8a3/0xc50 drivers/net/can/usb/mcba_usb.c:858
| usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
| call_driver_probe drivers/base/dd.c:517 [inline]
Solution

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