Improper resource shutdown or release in Linux kernel - CVE-2026-64155
Published: July 20, 2026
Vulnerability identifier: #VU138473
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-2026-64155
CWE-ID: CWE-404
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 improper resource shutdown or release in ath11k WMI WOW command handling in drivers/net/wireless/ath/ath11k/wmi.c when sending WOW host wakeup and WOW enable commands. A local user can trigger error paths to cause a denial of service.
How to mitigate CVE-2026-64155
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/008955b1348452de25bc19d6e0f0f673d4cb9a3c
- https://git.kernel.org/stable/c/3d675896ea03aca631852a2a7e91e6cb8f664967
- https://git.kernel.org/stable/c/55dda532bbc261aef495e403c8900c5e2ab5fa34
- https://git.kernel.org/stable/c/acde4692afcdaea6de3e2996ddfaeaa7ae6b0130
- https://git.kernel.org/stable/c/cd43d587dd333517c806cd24696e6e1a26b9951e
- https://git.kernel.org/stable/c/d618d322b95c80d5ad7091f35a7193e4050dcc27
- https://git.kernel.org/stable/c/d6c7b8d0dc22c0a8743435db8f42d98524b70df3