linux-cve-announce - CVE-2023-53573: clk: rs9: Fix suspend/resume

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: <2025100453-CVE-2023-53573-a05d@gregkh>
Date: Sat,  4 Oct 2025 17:17:27 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53573: clk: rs9: Fix suspend/resume

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

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

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

clk: rs9: Fix suspend/resume

Disabling the cache in commit 2ff4ba9e3702 ("clk: rs9: Fix I2C accessors")
without removing cache synchronization in resume path results in a
kernel panic as map->cache_ops is unset, due to REGCACHE_NONE.
Enable flat cache again to support resume again. num_reg_defaults_raw
is necessary to read the cache defaults from hardware. Some registers
are strapped in hardware and cannot be provided in software.

The Linux kernel CVE team has assigned CVE-2023-53573 to this issue.


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

	Issue introduced in 6.1 with commit 2ff4ba9e37024735f5cefc5ea2a73fc66addfe0e and fixed in 6.1.25 with commit 74f4471ad64214dd5046213ebdd6e0930da7bd2c
	Issue introduced in 6.1 with commit 2ff4ba9e37024735f5cefc5ea2a73fc66addfe0e and fixed in 6.2.12 with commit a983967602675880d6160a17ace2c0f48717ff33
	Issue introduced in 6.1 with commit 2ff4ba9e37024735f5cefc5ea2a73fc66addfe0e and fixed in 6.3 with commit 632e04739c8f45c2d9ca4d4c5bd18d80c2ac9296
	Issue introduced in 6.0.8 with commit 94c9e0e11a53e18fcedbf4563ef04a07385b2c89

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-2023-53573
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/clk-renesas-pcie.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/74f4471ad64214dd5046213ebdd6e0930da7bd2c
	https://git.kernel.org/stable/c/a983967602675880d6160a17ace2c0f48717ff33
	https://git.kernel.org/stable/c/632e04739c8f45c2d9ca4d4c5bd18d80c2ac9296