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Message-ID: <2025091623-CVE-2023-53277-2b69@gregkh>
Date: Tue, 16 Sep 2025 10:11:27 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53277: wifi: iwl3945: Add missing check for create_singlethread_workqueue
From: Greg Kroah-Hartman <gregkh@...nel.org>
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwl3945: Add missing check for create_singlethread_workqueue
Add the check for the return value of the create_singlethread_workqueue
in order to avoid NULL pointer dereference.
The Linux kernel CVE team has assigned CVE-2023-53277 to this issue.
Affected and fixed versions
===========================
Issue introduced in 2.6.24 with commit b481de9ca074528fe8c429604e2777db8b89806a and fixed in 4.19.276 with commit 3ae2fc4de12686f3fe695824169c1272c9f798f7
Issue introduced in 2.6.24 with commit b481de9ca074528fe8c429604e2777db8b89806a and fixed in 5.4.235 with commit 7e594abc0424e4f8c2385f11aefeaadcfc507aa5
Issue introduced in 2.6.24 with commit b481de9ca074528fe8c429604e2777db8b89806a and fixed in 5.10.173 with commit 2f80b3ff92514ebd227e5c55d3d1e480401b02b7
Issue introduced in 2.6.24 with commit b481de9ca074528fe8c429604e2777db8b89806a and fixed in 5.15.99 with commit 505c74c4c0b1c5bcaa98a93b3087c268156070f1
Issue introduced in 2.6.24 with commit b481de9ca074528fe8c429604e2777db8b89806a and fixed in 6.1.16 with commit 34f611204ae589bd5c494b10b41fb13436bd3c3f
Issue introduced in 2.6.24 with commit b481de9ca074528fe8c429604e2777db8b89806a and fixed in 6.2.3 with commit 17e07d6587c55015956862ef3b101fd45fa49fbc
Issue introduced in 2.6.24 with commit b481de9ca074528fe8c429604e2777db8b89806a and fixed in 6.3 with commit 1fdeb8b9f29dfd64805bb49475ac7566a3cb06cb
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-2023-53277
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/net/wireless/intel/iwlegacy/3945-mac.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/3ae2fc4de12686f3fe695824169c1272c9f798f7
https://git.kernel.org/stable/c/7e594abc0424e4f8c2385f11aefeaadcfc507aa5
https://git.kernel.org/stable/c/2f80b3ff92514ebd227e5c55d3d1e480401b02b7
https://git.kernel.org/stable/c/505c74c4c0b1c5bcaa98a93b3087c268156070f1
https://git.kernel.org/stable/c/34f611204ae589bd5c494b10b41fb13436bd3c3f
https://git.kernel.org/stable/c/17e07d6587c55015956862ef3b101fd45fa49fbc
https://git.kernel.org/stable/c/1fdeb8b9f29dfd64805bb49475ac7566a3cb06cb
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