Race condition in Linux kernel - CVE-2026-46157
Published: May 29, 2026
Vulnerability identifier: #VU133033
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-2026-46157
CWE-ID: CWE-362
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 data race in the ALSA pcm oss subsystem when accessing the runtime.oss.trigger field concurrently. A local user can trigger concurrent access to confuse operation and cause a denial of service.
The issue involves a bit field, so concurrent writes may overwrite other bit fields as well.
How to mitigate CVE-2026-46157
Install security update from vendor's repository.