Use-after-free in Linux kernel - CVE-2026-46069
Published: May 27, 2026
Vulnerability identifier: #VU132414
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46069
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 mwifiex_adapter_cleanup() when cleaning up the adapter while the wakeup timer callback is still executing. A local user can trigger device removal during this race condition to cause a denial of service.
How to mitigate CVE-2026-46069
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/030abbae49cf9fd1fba7aa08e15ec81efbeb78cf
- https://git.kernel.org/stable/c/11869ce402d95519d49b25a2a97741f68d69d103
- https://git.kernel.org/stable/c/4e179a60a60c0a5aea245e8e67768343c0f070b8
- https://git.kernel.org/stable/c/63fe3389b3e092d6c0eeea9fc0318e7918b16618
- https://git.kernel.org/stable/c/ae5e95d4157481693be2317e3ffcd84e36010cbb