linux-cve-announce - CVE-2025-38707: fs/ntfs3: Add sanity check for file name

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Message-ID: <2025090455-CVE-2025-38707-5808@gregkh>
Date: Thu,  4 Sep 2025 17:33:12 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-38707: fs/ntfs3: Add sanity check for file name

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

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

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

fs/ntfs3: Add sanity check for file name

The length of the file name should be smaller than the directory entry size.

The Linux kernel CVE team has assigned CVE-2025-38707 to this issue.


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

	Fixed in 5.15.190 with commit bde58c1539f3ffddffc94d64007de16964e6b8eb
	Fixed in 6.1.149 with commit f99eb9a641f4ef927d8724f4966dcfd1f0e9f835
	Fixed in 6.6.103 with commit 3572737a768dadea904ebc4eb34b6ed575bb72d9
	Fixed in 6.12.43 with commit 2ac47f738ddfc1957a33be163bc97ee8f78e85a6
	Fixed in 6.15.11 with commit b51642fc52d1c7243a9361555d5c4b24d7569d7e
	Fixed in 6.16.2 with commit 27ee9a42b245efe6529e28b03453291a775cb3e4
	Fixed in 6.17-rc1 with commit e841ecb139339602bc1853f5f09daa5d1ea920a2

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-2025-38707
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/ntfs3/dir.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/bde58c1539f3ffddffc94d64007de16964e6b8eb
	https://git.kernel.org/stable/c/f99eb9a641f4ef927d8724f4966dcfd1f0e9f835
	https://git.kernel.org/stable/c/3572737a768dadea904ebc4eb34b6ed575bb72d9
	https://git.kernel.org/stable/c/2ac47f738ddfc1957a33be163bc97ee8f78e85a6
	https://git.kernel.org/stable/c/b51642fc52d1c7243a9361555d5c4b24d7569d7e
	https://git.kernel.org/stable/c/27ee9a42b245efe6529e28b03453291a775cb3e4
	https://git.kernel.org/stable/c/e841ecb139339602bc1853f5f09daa5d1ea920a2