linux-cve-announce - CVE-2022-49249: ASoC: codecs: wc938x: fix accessing array out of bounds for enum type

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Message-ID: <2025022626-CVE-2022-49249-18dc@gregkh>
Date: Wed, 26 Feb 2025 02:57:34 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49249: ASoC: codecs: wc938x: fix accessing array out of bounds for enum type

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

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

ASoC: codecs: wc938x: fix accessing array out of bounds for enum type

Accessing enums using integer would result in array out of bounds access
on platforms like aarch64 where sizeof(long) is 8 compared to enum size
which is 4 bytes.

Fix this by using enumerated items instead of integers.

The Linux kernel CVE team has assigned CVE-2022-49249 to this issue.


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

	Issue introduced in 5.14 with commit e8ba1e05bdc016700c85fad559a812c2e795442f and fixed in 5.15.33 with commit adafea71b49ec4dbc44e0b84ec6eb602004a7a08
	Issue introduced in 5.14 with commit e8ba1e05bdc016700c85fad559a812c2e795442f and fixed in 5.16.19 with commit f03c0c94186d5876857132d97e28f20cdc100bdc
	Issue introduced in 5.14 with commit e8ba1e05bdc016700c85fad559a812c2e795442f and fixed in 5.17.2 with commit d09aee1b1da196be11ed86dd4897f228f2487613
	Issue introduced in 5.14 with commit e8ba1e05bdc016700c85fad559a812c2e795442f and fixed in 5.18 with commit cc587b7c8fbbe128f6bd0dad025a0caea5e6d164

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-2022-49249
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:
	sound/soc/codecs/wcd938x.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/adafea71b49ec4dbc44e0b84ec6eb602004a7a08
	https://git.kernel.org/stable/c/f03c0c94186d5876857132d97e28f20cdc100bdc
	https://git.kernel.org/stable/c/d09aee1b1da196be11ed86dd4897f228f2487613
	https://git.kernel.org/stable/c/cc587b7c8fbbe128f6bd0dad025a0caea5e6d164