linux-cve-announce - CVE-2023-54228: regulator: raa215300: Fix resource leak in case of error

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Message-ID: <2025123029-CVE-2023-54228-0585@gregkh>
Date: Tue, 30 Dec 2025 13:13:58 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-54228: regulator: raa215300: Fix resource leak in case of error

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

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

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

regulator: raa215300: Fix resource leak in case of error

The clk_register_clkdev() allocates memory by calling vclkdev_alloc() and
this memory is not freed in the error path. Similarly, resources allocated
by clk_register_fixed_rate() are not freed in the error path.

Fix these issues by using devm_clk_hw_register_fixed_rate() and
devm_clk_hw_register_clkdev().

After this, the static variable clk is not needed. Replace it with 
local variable hw in probe() and drop calling clk_unregister_fixed_rate()
from raa215300_rtc_unregister_device().

The Linux kernel CVE team has assigned CVE-2023-54228 to this issue.


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

	Issue introduced in 6.5 with commit 7bce16630837c705f72e8fd53a11ae8c236236f4 and fixed in 6.5.4 with commit 2bf2d2ac9e67184dc99275875a6452ca6e3027ff
	Issue introduced in 6.5 with commit 7bce16630837c705f72e8fd53a11ae8c236236f4 and fixed in 6.6 with commit e21ac64e669e960688e79bf5babeed63132dac8a

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-2023-54228
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/regulator/raa215300.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/2bf2d2ac9e67184dc99275875a6452ca6e3027ff
	https://git.kernel.org/stable/c/e21ac64e669e960688e79bf5babeed63132dac8a