CVE-2026-68360: hwmon: (corsair-cpro) Stop device IO before calling hid_hw_stop

From: Greg Kroah-Hartman <[email protected]>

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

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

hwmon: (corsair-cpro) Stop device IO before calling hid_hw_stop

Calling hid_hw_stop() does not stop the device IO.
This results in a race condition between hid_input_report() and the point
immediately following the execution of hid_device_io_start() within
the driver probe function. If the probe operation fails after "io start"
has been initiated, this race condition will result in a UAF vulnerability.

Fix the problem by calling hid_device_io_stop() before calling
hid_hw_stop().

The Linux kernel CVE team has assigned CVE-2026-68360 to this issue.


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

	Issue introduced in 5.9 with commit 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and fixed in 6.6.148 with commit 0975c42ed2a3bf32125a920e5d19194289126210
	Issue introduced in 5.9 with commit 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and fixed in 6.12.101 with commit c7757db58957ac20cdec6ce575dbd44a6375664e
	Issue introduced in 5.9 with commit 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and fixed in 6.18.42 with commit 56d2deb6448378118dbe68c4fbb3fbae5f65b18c
	Issue introduced in 5.9 with commit 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and fixed in 7.1.6 with commit 1a634f464d6153dfa4d7e73a3d78236b65a64ee9
	Issue introduced in 5.9 with commit 40c3a445422579db8ad96c234dbe6c0ab3f6b936 and fixed in 7.2-rc5 with commit 94c87871b051d7ad758828a805215a2ec194512a

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-2026-68360
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/hwmon/corsair-cpro.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/0975c42ed2a3bf32125a920e5d19194289126210
	https://git.kernel.org/stable/c/c7757db58957ac20cdec6ce575dbd44a6375664e
	https://git.kernel.org/stable/c/56d2deb6448378118dbe68c4fbb3fbae5f65b18c
	https://git.kernel.org/stable/c/1a634f464d6153dfa4d7e73a3d78236b65a64ee9
	https://git.kernel.org/stable/c/94c87871b051d7ad758828a805215a2ec194512a