CVE-2026-89734
kernel: usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 11, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's USB Video Class (UVC) gadget driver. This vulnerability occurs in the uvcg_video_init() function when the kthread_run_worker() function fails. In such a scenario, an error logging mechanism attempts to access an uninitialized pointer, leading to a null pointer dereference. This can result in a system crash, causing a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference