CVE-2026-89733

kernel: usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()

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Severity

Moderate

Red Hat Product Security

5.5

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 uvc_function_bind() and uvc_function_unbind() functions, where pointers to freed memory are not properly cleared. This can lead to a use-after-free (UAF) condition, potentially allowing an attacker to corrupt memory, which may result in a denial of service or arbitrary code execution.

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 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference