NULL pointer dereference in Linux kernel - CVE-2026-89734
Published: September 12, 2026
Vulnerability identifier: #VU149077
CSH Severity: Low
CVSS v4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89734
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in uvcg_video_init() when handling a failure to create a kthread worker. A local privileged user can trigger a kthread worker creation failure to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-89734
Install security update from vendor's repository.