linux-cve-announce - CVE-2022-49314: tty: Fix a possible resource leak in icom

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Message-ID: <2025022636-CVE-2022-49314-beeb@gregkh>
Date: Wed, 26 Feb 2025 03:09:48 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49314: tty: Fix a possible resource leak in icom_probe

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

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

tty: Fix a possible resource leak in icom_probe

When pci_read_config_dword failed, call pci_release_regions() and
pci_disable_device() to recycle the resource previously allocated.

The Linux kernel CVE team has assigned CVE-2022-49314 to this issue.


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

	Fixed in 4.9.318 with commit f4c836d90da1ece88905d62ce2ce39a962f25d1a
	Fixed in 4.14.283 with commit d703d912a985c1c5b50dd38c3181fc3540fa77cb
	Fixed in 4.19.247 with commit a2df0b4d080cc770b4da7bff487048c803dfd07e
	Fixed in 5.4.198 with commit 8c014373f178a4f13a08e045ef63bdb23f62e892
	Fixed in 5.10.122 with commit cb7147afd328c07edeeee287710d8d96ac0459f5
	Fixed in 5.15.47 with commit 5f9b2e4ca88cab1a96b86ecd45544e488ca43faf
	Fixed in 5.17.15 with commit 23e155b51d403c0ccedc60c0d6c3c452afed07fe
	Fixed in 5.18.4 with commit 9a8305f357a8d03698fc7bc855ff9c6865d5486b
	Fixed in 5.19 with commit ee157a79e7c82b01ae4c25de0ac75899801f322c

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-2022-49314
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/tty/serial/icom.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/f4c836d90da1ece88905d62ce2ce39a962f25d1a
	https://git.kernel.org/stable/c/d703d912a985c1c5b50dd38c3181fc3540fa77cb
	https://git.kernel.org/stable/c/a2df0b4d080cc770b4da7bff487048c803dfd07e
	https://git.kernel.org/stable/c/8c014373f178a4f13a08e045ef63bdb23f62e892
	https://git.kernel.org/stable/c/cb7147afd328c07edeeee287710d8d96ac0459f5
	https://git.kernel.org/stable/c/5f9b2e4ca88cab1a96b86ecd45544e488ca43faf
	https://git.kernel.org/stable/c/23e155b51d403c0ccedc60c0d6c3c452afed07fe
	https://git.kernel.org/stable/c/9a8305f357a8d03698fc7bc855ff9c6865d5486b
	https://git.kernel.org/stable/c/ee157a79e7c82b01ae4c25de0ac75899801f322c