linux-cve-announce - CVE-2023-53431: scsi: ses: Don't attach if enclosure has no components

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Message-ID: <2025091857-CVE-2023-53431-7eac@gregkh>
Date: Thu, 18 Sep 2025 18:04:22 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53431: scsi: ses: Don't attach if enclosure has no components

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

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

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

scsi: ses: Don't attach if enclosure has no components

An enclosure with no components can't usefully be operated by the driver
(since effectively it has nothing to manage), so report the problem and
don't attach. Not attaching also fixes an oops which could occur if the
driver tries to manage a zero component enclosure.

[mkp: Switched to KERN_WARNING since this scenario is common]

The Linux kernel CVE team has assigned CVE-2023-53431 to this issue.


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

	Fixed in 4.14.308 with commit 4863fefc8a8cc8e8f6c7635b12d9dffaa0a12d86
	Fixed in 4.19.276 with commit feefd5232ecb788f0666f75893a7a86faec8bbcc
	Fixed in 5.4.235 with commit 6069e04a922a0488bcf4f1017d38d18afda8194c
	Fixed in 5.10.173 with commit d68937dfc73ee7f61cf3424fa3225be93cacaa00
	Fixed in 5.15.99 with commit 6fce2307650a190e343a84537c278d499fa37c26
	Fixed in 6.1.16 with commit 5ca5470b33e5221dd3e5be81108697c22dd38b56
	Fixed in 6.2.3 with commit f182ad02024d3f45374a9e0c9d76f28b776d762d
	Fixed in 6.3 with commit 3fe97ff3d94934649abb0652028dd7296170c8d0

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-2023-53431
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/scsi/ses.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/4863fefc8a8cc8e8f6c7635b12d9dffaa0a12d86
	https://git.kernel.org/stable/c/feefd5232ecb788f0666f75893a7a86faec8bbcc
	https://git.kernel.org/stable/c/6069e04a922a0488bcf4f1017d38d18afda8194c
	https://git.kernel.org/stable/c/d68937dfc73ee7f61cf3424fa3225be93cacaa00
	https://git.kernel.org/stable/c/6fce2307650a190e343a84537c278d499fa37c26
	https://git.kernel.org/stable/c/5ca5470b33e5221dd3e5be81108697c22dd38b56
	https://git.kernel.org/stable/c/f182ad02024d3f45374a9e0c9d76f28b776d762d
	https://git.kernel.org/stable/c/3fe97ff3d94934649abb0652028dd7296170c8d0