linux-cve-announce - CVE-2024-56596: jfs: fix array-index-out-of-bounds in jfs

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Message-ID: <2024122701-CVE-2024-56596-2add@gregkh>
Date: Fri, 27 Dec 2024 15:51:03 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-56596: jfs: fix array-index-out-of-bounds in jfs_readdir

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

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

jfs: fix array-index-out-of-bounds in jfs_readdir

The stbl might contain some invalid values. Added a check to
return error code in that case.

The Linux kernel CVE team has assigned CVE-2024-56596 to this issue.


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

	Fixed in 5.4.287 with commit b62f41aeec9d250144c53875b507c1d45ae8c8fc
	Fixed in 5.10.231 with commit 97e693593162eef6851d232f0c8148169ed46a5c
	Fixed in 5.15.174 with commit 9efe72eefd4c4a7ce63b3e4d667d766d2b360cb4
	Fixed in 6.1.120 with commit ff9fc48fab0e1ea0d423c23c99b91bba178f0b05
	Fixed in 6.6.66 with commit e7d376f94f72b020f84e77278b150ec1cc27502c
	Fixed in 6.12.5 with commit 8ff7579554571d92e3deab168f5a7d7b146ed368
	Fixed in 6.13-rc1 with commit 839f102efb168f02dfdd46717b7c6dddb26b015e

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-2024-56596
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:
	fs/jfs/jfs_dtree.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/b62f41aeec9d250144c53875b507c1d45ae8c8fc
	https://git.kernel.org/stable/c/97e693593162eef6851d232f0c8148169ed46a5c
	https://git.kernel.org/stable/c/9efe72eefd4c4a7ce63b3e4d667d766d2b360cb4
	https://git.kernel.org/stable/c/ff9fc48fab0e1ea0d423c23c99b91bba178f0b05
	https://git.kernel.org/stable/c/e7d376f94f72b020f84e77278b150ec1cc27502c
	https://git.kernel.org/stable/c/8ff7579554571d92e3deab168f5a7d7b146ed368
	https://git.kernel.org/stable/c/839f102efb168f02dfdd46717b7c6dddb26b015e