linux-cve-announce - CVE-2023-53350: accel/qaic: Fix slicing memory leak

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Message-ID: <2025091720-CVE-2023-53350-86b6@gregkh>
Date: Wed, 17 Sep 2025 16:56:49 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53350: accel/qaic: Fix slicing memory leak

From: Greg Kroah-Hartman <gregkh@...nel.org>

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

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

accel/qaic: Fix slicing memory leak

The temporary buffer storing slicing configuration data from user is only
freed on error.  This is a memory leak.  Free the buffer unconditionally.

The Linux kernel CVE team has assigned CVE-2023-53350 to this issue.


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

	Issue introduced in 6.4 with commit ff13be8303336ead5621712f2c55012d738878b5 and fixed in 6.4.12 with commit df45c3e46cdb41f486eecb4277fbcc4c1ffbf9be
	Issue introduced in 6.4 with commit ff13be8303336ead5621712f2c55012d738878b5 and fixed in 6.5 with commit 2d956177b7c96e62fac762a3b7da4318cde27a73

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-2023-53350
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/accel/qaic/qaic_data.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/df45c3e46cdb41f486eecb4277fbcc4c1ffbf9be
	https://git.kernel.org/stable/c/2d956177b7c96e62fac762a3b7da4318cde27a73