linux-cve-announce - CVE-2023-53367: accel/habanalabs: fix mem leak in capture user mappings

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Message-ID: <2025091723-CVE-2023-53367-ccb9@gregkh>
Date: Wed, 17 Sep 2025 16:57:06 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53367: accel/habanalabs: fix mem leak in capture user mappings

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

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

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

accel/habanalabs: fix mem leak in capture user mappings

This commit fixes a memory leak caused when clearing the user_mappings
info when a new context is opened immediately after user_mapping is
captured and a hard reset is performed.

The Linux kernel CVE team has assigned CVE-2023-53367 to this issue.


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

	Fixed in 6.4.12 with commit 973e0890e5264cb075ef668661cad06b67777121
	Fixed in 6.5 with commit 314a7ffd7c196b27eedd50cb7553029e17789b55

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-2023-53367
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/habanalabs/common/habanalabs_drv.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/973e0890e5264cb075ef668661cad06b67777121
	https://git.kernel.org/stable/c/314a7ffd7c196b27eedd50cb7553029e17789b55