linux-cve-announce - CVE-2024-53081: media: ar0521: don't overflow when checking PLL values

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Message-ID: <2024111904-CVE-2024-53081-72b5@gregkh>
Date: Tue, 19 Nov 2024 18:45:01 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53081: media: ar0521: don't overflow when checking PLL values

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

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

media: ar0521: don't overflow when checking PLL values

The PLL checks are comparing 64 bit integers with 32 bit
ones, as reported by Coverity. Depending on the values of
the variables, this may underflow.

Fix it ensuring that both sides of the expression are u64.

The Linux kernel CVE team has assigned CVE-2024-53081 to this issue.


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

	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.1.117 with commit 5e1523076acf
	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.6.61 with commit a244b82d0ae6
	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.11.8 with commit 97ed0c0332d5
	Issue introduced in 6.0 with commit 852b50aeed15 and fixed in 6.12 with commit 438d3085ba5b

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-2024-53081
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/5e1523076acf95b4ea68d19b6f27e6891267cc24
	https://git.kernel.org/stable/c/a244b82d0ae60326901f2b50c15e3118298b7ecd
	https://git.kernel.org/stable/c/97ed0c0332d5525653668b31acf62ff1e6b50784
	https://git.kernel.org/stable/c/438d3085ba5b8b5bfa5290faa594e577f6ac9aa7