cve/published/2022/CVE-2022-49151.mbox

From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: <linux-cve-announce@vger.kernel.org>
Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org>
Subject: CVE-2022-49151: can: mcba_usb: properly check endpoint type

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:
|  <TASK>
|  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]

The Linux kernel CVE team has assigned CVE-2022-49151 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 4.14.276 with commit 5598442edc29e8f6f2380e4b471dc1a3fcd80508
	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 4.19.238 with commit b48d1bb3f1ca337ad653022aefb5a40a47dfe5cd
	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 5.4.189 with commit cbd110b8dd7ad763bf413f71c0484116ae9302d4
	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 5.10.110 with commit ef0acc514123140157b19a9ff2e2de5d91d612bc
	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 5.15.33 with commit fa9c1f14002dc0d5293e16a2007bd89b6e79207b
	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 5.16.19 with commit 88272b4a37913bdf6f339162a7920bd8e9b49de2
	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 5.17.2 with commit f2ec3cd0f34f8c3f94bc21fbba14868301c9c49d
	Issue introduced in 4.12 with commit 51f3baad7de943780ce0c17bd7975df567dd6e14 and fixed in 5.18 with commit 136bed0bfd3bc9c95c88aafff2d22ecb3a919f23

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2022-49151
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/net/can/usb/mcba_usb.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/5598442edc29e8f6f2380e4b471dc1a3fcd80508
	https://git.kernel.org/stable/c/b48d1bb3f1ca337ad653022aefb5a40a47dfe5cd
	https://git.kernel.org/stable/c/cbd110b8dd7ad763bf413f71c0484116ae9302d4
	https://git.kernel.org/stable/c/ef0acc514123140157b19a9ff2e2de5d91d612bc
	https://git.kernel.org/stable/c/fa9c1f14002dc0d5293e16a2007bd89b6e79207b
	https://git.kernel.org/stable/c/88272b4a37913bdf6f339162a7920bd8e9b49de2
	https://git.kernel.org/stable/c/f2ec3cd0f34f8c3f94bc21fbba14868301c9c49d
	https://git.kernel.org/stable/c/136bed0bfd3bc9c95c88aafff2d22ecb3a919f23