linux-cve-announce - CVE-2025-21952: HID: corsair-void: Update power supply values with a unified work handler

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Message-ID: <2025040137-CVE-2025-21952-16cb@gregkh>
Date: Tue,  1 Apr 2025 16:40:16 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2025-21952: HID: corsair-void: Update power supply values with a unified work handler

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

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

HID: corsair-void: Update power supply values with a unified work handler

corsair_void_process_receiver can be called from an interrupt context,
locking battery_mutex in it was causing a kernel panic.
Fix it by moving the critical section into its own work, sharing this
work with battery_add_work and battery_remove_work to remove the need
for any locking

The Linux kernel CVE team has assigned CVE-2025-21952 to this issue.


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

	Issue introduced in 6.13 with commit 6ea2a6fd3872e60a4d500b548ad65ed94e459ddd and fixed in 6.13.7 with commit de19c9dfb68f7c5791accc89047f92e952f57996
	Issue introduced in 6.13 with commit 6ea2a6fd3872e60a4d500b548ad65ed94e459ddd and fixed in 6.14 with commit 0c28e4d1e10d2aae608094620bb386e6fd73d55e

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-2025-21952
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/hid/hid-corsair-void.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/de19c9dfb68f7c5791accc89047f92e952f57996
	https://git.kernel.org/stable/c/0c28e4d1e10d2aae608094620bb386e6fd73d55e