Memory leak in Linux kernel - CVE-2026-43231
Published: May 7, 2026
Vulnerability identifier: #VU130496
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43231
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a memory leak in usb_keene_probe() when handling device initialization errors after registering v4l2 controls. A local user can trigger a failure in v4l2_device_register() or video_register_device() to cause a denial of service.
How to mitigate CVE-2026-43231
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/1d8558a232ecb187e8e0328d6347a125f437a0fc
- https://git.kernel.org/stable/c/242b0aabb1866024a7995a767ac330c158b39aa4
- https://git.kernel.org/stable/c/27c508f61963013fdf29097578284099ee7a85a4
- https://git.kernel.org/stable/c/2fe28a63d598235595a9601e0d8fdc7c8f4fd575
- https://git.kernel.org/stable/c/7fa9754f48cb8eefa566156be341e63d313247e5
- https://git.kernel.org/stable/c/ad85bb5623079a35bd400f51de2e2fbc2170bdb2
- https://git.kernel.org/stable/c/b8bf939d77c0cd01118e953bbf554e0fa15e9006
- https://git.kernel.org/stable/c/de204d87e7d61859937272fe30cbdd46a4cfb10a