linux-cve-announce - CVE-2024-49961: media: i2c: ar0521: Use cansleep version of gpiod_set

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Message-ID: <2024102131-CVE-2024-49961-7541@gregkh>
Date: Mon, 21 Oct 2024 20:02:49 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-49961: media: i2c: ar0521: Use cansleep version of gpiod_set_value()

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

media: i2c: ar0521: Use cansleep version of gpiod_set_value()

If we use GPIO reset from I2C port expander, we must use *_cansleep()
variant of GPIO functions.
This was not done in ar0521_power_on()/ar0521_power_off() functions.
Let's fix that.

------------[ cut here ]------------
WARNING: CPU: 0 PID: 11 at drivers/gpio/gpiolib.c:3496 gpiod_set_value+0x74/0x7c
Modules linked in:
CPU: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.10.0 #53
Hardware name: Diasom DS-RK3568-SOM-EVB (DT)
Workqueue: events_unbound deferred_probe_work_func
pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : gpiod_set_value+0x74/0x7c
lr : ar0521_power_on+0xcc/0x290
sp : ffffff8001d7ab70
x29: ffffff8001d7ab70 x28: ffffff80027dcc90 x27: ffffff8003c82000
x26: ffffff8003ca9250 x25: ffffffc080a39c60 x24: ffffff8003ca9088
x23: ffffff8002402720 x22: ffffff8003ca9080 x21: ffffff8003ca9088
x20: 0000000000000000 x19: ffffff8001eb2a00 x18: ffffff80efeeac80
x17: 756d2d6332692f30 x16: 0000000000000000 x15: 0000000000000000
x14: ffffff8001d91d40 x13: 0000000000000016 x12: ffffffc080e98930
x11: ffffff8001eb2880 x10: 0000000000000890 x9 : ffffff8001d7a9f0
x8 : ffffff8001d92570 x7 : ffffff80efeeac80 x6 : 000000003fc6e780
x5 : ffffff8001d91c80 x4 : 0000000000000002 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000001
Call trace:
 gpiod_set_value+0x74/0x7c
 ar0521_power_on+0xcc/0x290
...

The Linux kernel CVE team has assigned CVE-2024-49961 to this issue.


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

	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.1.113 with commit 9f08876d7667
	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.6.55 with commit 625a77b68c96
	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.10.14 with commit 2423b60a2d6d
	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.11.3 with commit 3cf00ecfbf11
	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.12-rc1 with commit bee1aed819a8

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-2024-49961
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/media/i2c/ar0521.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/9f08876d766755a92f1b9543ae3ee21bfc596fb8
	https://git.kernel.org/stable/c/625a77b68c96349c16fcc1faa42784313e0b1a85
	https://git.kernel.org/stable/c/2423b60a2d6d27e5f66c5021b494463aef2db212
	https://git.kernel.org/stable/c/3cf00ecfbf11ee8e6afff306a5bdcff4bf95d2cf
	https://git.kernel.org/stable/c/bee1aed819a8cda47927436685d216906ed17f62