CVE-2026-68361

Technical Description

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

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

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

corsairpsu_probe(). If the probe operation fails after "io start" has

been initiated, this race condition will result in a uaf vulnerability

[1].

CPU0 CPU1

==== ====

corsairpsu_probe()

hid_device_io_start()

... unlock driver_input_lock

hid_hw_stop()

kfree(hidraw) __hid_input_report()

... acquire driver_input_lock

hid_report_raw_event()

hidraw_report_event()

... access hidraw's list_lock // trigger uaf

Consequently, when corsairpsu_probe() fails and hid_hw_stop() needs to

be executed, the io_started flag is first cleared while holding the

driver_input_lock to prevent potential race conditions involving input

reports.

[1]

BUG: KASAN: s

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References