SB20260812165 - Use-after-free in Linux kernel hwmon driver

Description

This security bulletin contains information about 1 vulnerability.

1) Use-after-free (CVE-ID: CVE-2026-68358)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to a use-after-free in the nzxt-kraken3 driver probe function when handling device initialization failures after device I/O has been started. A local user can trigger a probe failure after I/O start to execute arbitrary code.

The issue is caused by a race condition between hid_input_report() and execution immediately following hid_device_io_start() during probe.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/305c23993e43db9a3681978691b1f9f2a1b26299
• https://git.kernel.org/stable/c/8cb282c34d582afcca7b1bae7c7bcd5204fd03d6
• https://git.kernel.org/stable/c/dc73b0dfeab8dc0fe73e29c4401d032279e23efd
• https://git.kernel.org/stable/c/f151d0143ac4e086f92f52328ebdbdc50933d8ef