From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-cve-announce@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: CVE-2022-49609: power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
Date: Wed, 26 Feb 2025 03:22:52 +0100 [thread overview]
Message-ID: <2025022613-CVE-2022-49609-3352@gregkh> (raw)
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
of_find_matching_node_and_match() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
The Linux kernel CVE team has assigned CVE-2022-49609 to this issue.
Affected and fixed versions
===========================
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 4.9.325 with commit b4d224eec96a18fa8959512cd9e5b6a50bd16a41
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 4.14.290 with commit a9ed3ad3a8d1dfbc829d86edb3236873a315db11
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 4.19.254 with commit 6689754b121bd487f99680280102b3a5cd7374af
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 5.4.208 with commit 78bdf732cf5d74d1c6ecda06830a91f80a4aef6f
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 5.10.134 with commit 493ceca3271316e74639c89ff8ac35883de64256
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 5.15.58 with commit 71ab83ac65e2d671552374123bf920c1d698335a
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 5.18.15 with commit 49fa778ee044b00471dd9ccae5f6a121fffea1ac
Issue introduced in 3.18 with commit 0e545f57b708630c54c8c5c24ea7f7034f6c40d9 and fixed in 5.19 with commit 80192eff64eee9b3bc0594a47381937b94b9d65a
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-2022-49609
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/power/reset/arm-versatile-reboot.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/b4d224eec96a18fa8959512cd9e5b6a50bd16a41
https://git.kernel.org/stable/c/a9ed3ad3a8d1dfbc829d86edb3236873a315db11
https://git.kernel.org/stable/c/6689754b121bd487f99680280102b3a5cd7374af
https://git.kernel.org/stable/c/78bdf732cf5d74d1c6ecda06830a91f80a4aef6f
https://git.kernel.org/stable/c/493ceca3271316e74639c89ff8ac35883de64256
https://git.kernel.org/stable/c/71ab83ac65e2d671552374123bf920c1d698335a
https://git.kernel.org/stable/c/49fa778ee044b00471dd9ccae5f6a121fffea1ac
https://git.kernel.org/stable/c/80192eff64eee9b3bc0594a47381937b94b9d65a
reply other threads:[~2025-02-26 2:24 UTC|newest]
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