linux-cve-announce - CVE-2025-68225: lib/test

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Message-ID: <2025121634-CVE-2025-68225-bfd3@gregkh>
Date: Tue, 16 Dec 2025 14:57:44 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-68225: lib/test_kho: check if KHO is enabled

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

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

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

lib/test_kho: check if KHO is enabled

We must check whether KHO is enabled prior to issuing KHO commands,
otherwise KHO internal data structures are not initialized.

The Linux kernel CVE team has assigned CVE-2025-68225 to this issue.


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

	Issue introduced in 6.17 with commit b753522bed0b7e388a643f58d91bd81d8849ba43 and fixed in 6.17.10 with commit bb3267bedd902ec457643b1326cccddafb82e901
	Issue introduced in 6.17 with commit b753522bed0b7e388a643f58d91bd81d8849ba43 and fixed in 6.18 with commit a26ec8f3d4e56d4a7ffa301e8032dca9df0bbc05

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-2025-68225
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:
	lib/test_kho.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/bb3267bedd902ec457643b1326cccddafb82e901
	https://git.kernel.org/stable/c/a26ec8f3d4e56d4a7ffa301e8032dca9df0bbc05