linux-cve-announce - CVE-2025-40145: PCI/pwrctrl: Fix double cleanup on devm_add_action_or

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Message-ID: <2025111256-CVE-2025-40145-9b0c@gregkh>
Date: Wed, 12 Nov 2025 19:24:21 +0900
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-40145: PCI/pwrctrl: Fix double cleanup on devm_add_action_or_reset() failure

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

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

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

PCI/pwrctrl: Fix double cleanup on devm_add_action_or_reset() failure

When devm_add_action_or_reset() fails, it calls the passed cleanup
function.  Hence the caller must not repeat that cleanup.

Replace the "goto err_regulator_free" by the actual freeing, as there
will never be a need again for a second user of this label.

The Linux kernel CVE team has assigned CVE-2025-40145 to this issue.


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

	Issue introduced in 6.15 with commit 75996c92f4de309f855471927e6489f5a354cfd4 and fixed in 6.17.3 with commit 77732c58fef6247b71493dc3997af0ec0aaad5c7
	Issue introduced in 6.15 with commit 75996c92f4de309f855471927e6489f5a354cfd4 and fixed in 6.18-rc1 with commit ab81f2f79c683c94bac622aafafbe8232e547159

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-2025-40145
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/pci/pwrctrl/slot.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/77732c58fef6247b71493dc3997af0ec0aaad5c7
	https://git.kernel.org/stable/c/ab81f2f79c683c94bac622aafafbe8232e547159