Race condition in Linux kernel - CVE-2026-80777
Published: September 5, 2026
Vulnerability identifier: #VU147143
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80777
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger a race condition.
The vulnerability exists due to a race condition in private priority-inheritance futex handling during exec() when a task executes exec() after robust-list cleanup and before switching to a new memory map. A local user can execute a program that uses private priority-inheritance futexes to trigger a race condition.
Affected software
Linux kernel
How to mitigate CVE-2026-80777
Install security update from vendor's repository.