linux-cve-announce - CVE-2025-68318: clk: thead: th1520-ap: set all AXI clocks to CLK_IS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <2025121656-CVE-2025-68318-5c94@gregkh>
Date: Tue, 16 Dec 2025 16:40:01 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-68318: clk: thead: th1520-ap: set all AXI clocks to CLK_IS_CRITICAL

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

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

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

clk: thead: th1520-ap: set all AXI clocks to CLK_IS_CRITICAL

The AXI crossbar of TH1520 has no proper timeout handling, which means
gating AXI clocks can easily lead to bus timeout and thus system hang.

Set all AXI clock gates to CLK_IS_CRITICAL. All these clock gates are
ungated by default on system reset.

In addition, convert all current CLK_IGNORE_UNUSED usage to
CLK_IS_CRITICAL to prevent unwanted clock gating.

The Linux kernel CVE team has assigned CVE-2025-68318 to this issue.


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

	Fixed in 6.17.8 with commit bdec5e01fc2f3114d1fb1daeb1000911d783c4ae
	Fixed in 6.18 with commit c567bc5fc68c4388c00e11fc65fd14fe86b52070

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-2025-68318
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/clk/thead/clk-th1520-ap.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/bdec5e01fc2f3114d1fb1daeb1000911d783c4ae
	https://git.kernel.org/stable/c/c567bc5fc68c4388c00e11fc65fd14fe86b52070