linux-cve-announce - CVE-2022-49116: Bluetooth: use memset avoid memory leaks

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Message-ID: <2025022603-CVE-2022-49116-8bf8@gregkh>
Date: Wed, 26 Feb 2025 02:55:21 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49116: Bluetooth: use memset avoid memory leaks

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

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

Bluetooth: use memset avoid memory leaks

Use memset to initialize structs to prevent memory leaks
in l2cap_ecred_connect

The Linux kernel CVE team has assigned CVE-2022-49116 to this issue.


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

	Fixed in 5.10.111 with commit 9567d54e70ff58c2695c2cc2e53c86c67551d3e6
	Fixed in 5.15.34 with commit 42b6a39f439b6f37cc2024d91ce547d83290ff78
	Fixed in 5.16.20 with commit e9e55acee9b7a737ec7f5161b94a78932a5514c8
	Fixed in 5.17.3 with commit d588c183a971b85c775ad66da563ee6e8bc8158f
	Fixed in 5.18 with commit d3715b2333e9a21692ba16ef8645eda584a9515d

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-2022-49116
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:
	net/bluetooth/l2cap_core.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/9567d54e70ff58c2695c2cc2e53c86c67551d3e6
	https://git.kernel.org/stable/c/42b6a39f439b6f37cc2024d91ce547d83290ff78
	https://git.kernel.org/stable/c/e9e55acee9b7a737ec7f5161b94a78932a5514c8
	https://git.kernel.org/stable/c/d588c183a971b85c775ad66da563ee6e8bc8158f
	https://git.kernel.org/stable/c/d3715b2333e9a21692ba16ef8645eda584a9515d