CVE-2026-81004: ipmi:msghandler: Cancel work cleanly on an error

CVE-2026-81004: ipmi:msghandler: Cancel work cleanly on an error

[Greg Kroah-Hartman]

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

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

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

ipmi:msghandler: Cancel work cleanly on an error

If an error occurs during startup of an IPMI interface, it may have
scheduled work to run.  The work needs to be canceled before the
interface can be freed.

The Linux kernel CVE team has assigned CVE-2026-81004 to this issue.


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

	Issue introduced in 6.18.20 with commit edb6c2118293c1fba9cd11ca80ed043d2411a7e5 and fixed in 6.18.50 with commit 99692252b348c11377fd0cdd66b6b18f3b22758e
	Issue introduced in 7.0 with commit 62cd145453d577113f993efd025f258dd86aa183 and fixed in 7.2.4 with commit a496c51dd3257ed7e00873af2ad9bb22c3ddc4cf
	Issue introduced in 7.0 with commit 62cd145453d577113f993efd025f258dd86aa183 and fixed in 7.3-rc1 with commit ae84a2536577057e97f23f75a202e26d0e86cf01
	Issue introduced in 6.19.10 with commit 5199fc5dc9c519115457406009fcefd50721c995

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-2026-81004
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/char/ipmi/ipmi_msghandler.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/99692252b348c11377fd0cdd66b6b18f3b22758e
	https://git.kernel.org/stable/c/a496c51dd3257ed7e00873af2ad9bb22c3ddc4cf
	https://git.kernel.org/stable/c/ae84a2536577057e97f23f75a202e26d0e86cf01