Use-after-free in Linux kernel - CVE-2026-43111
Published: May 7, 2026
Vulnerability identifier: #VU130654
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43111
CWE-ID: CWE-416
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 use-after-free in roccat_report_event when iterating over the device readers list during concurrent device access. A local user can trigger concurrent access to the roccat device to cause a denial of service.
The issue arises from a race condition with roccat_release() removing and freeing a reader while it is still being accessed.
How to mitigate CVE-2026-43111
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/36bb2d0b915014bbdc5044982b31b57b78045b93
- https://git.kernel.org/stable/c/bca0b595e15450dd66b1153c76c4ef1087ee011b
- https://git.kernel.org/stable/c/d802d848308b35220f21a8025352f0c0aba15c12
- https://git.kernel.org/stable/c/e16a6d11bd77b81632165f02cf0d5946df74b3b7
- https://git.kernel.org/stable/c/e6a445513fbc6a0329d2d5ff375b6725750ec5a6