linux-cve-announce - CVE-2025-38317: wifi: ath12k: Fix buffer overflow in debugfs

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Message-ID: <2025071016-CVE-2025-38317-efbf@gregkh>
Date: Thu, 10 Jul 2025 09:42:58 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-38317: wifi: ath12k: Fix buffer overflow in debugfs

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

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

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

wifi: ath12k: Fix buffer overflow in debugfs

If the user tries to write more than 32 bytes then it results in memory
corruption.  Fortunately, this is debugfs so it's limited to root users.

The Linux kernel CVE team has assigned CVE-2025-38317 to this issue.


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

	Issue introduced in 6.11 with commit 3f73c24f28b317f22df7870c25ff82f1d625c6c2 and fixed in 6.12.34 with commit 0c57aa8ef94cffc5c2d68230e19329a03e71a94f
	Issue introduced in 6.11 with commit 3f73c24f28b317f22df7870c25ff82f1d625c6c2 and fixed in 6.15.3 with commit 8c4a200d03574bfcbf54fdb7ba5968b58ad2e0b3
	Issue introduced in 6.11 with commit 3f73c24f28b317f22df7870c25ff82f1d625c6c2 and fixed in 6.16-rc1 with commit 8c7a5031a6b0d42e640fbd2d5d05f61f74e32dce

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-2025-38317
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/net/wireless/ath/ath12k/debugfs_htt_stats.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/0c57aa8ef94cffc5c2d68230e19329a03e71a94f
	https://git.kernel.org/stable/c/8c4a200d03574bfcbf54fdb7ba5968b58ad2e0b3
	https://git.kernel.org/stable/c/8c7a5031a6b0d42e640fbd2d5d05f61f74e32dce