Race condition in Linux kernel - CVE-2026-97960
Published: September 28, 2026
Vulnerability identifier: #VU152517
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97960
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to access out-of-bounds memory.
The vulnerability exists due to a race condition caused by reentrant access in the Intel PEBS buffer-draining functionality when a performance monitoring interrupt interrupts an in-flight PEBS buffer drain. A local user can trigger reentrant PEBS buffer draining to access out-of-bounds memory.
The PEBS buffer is shared by all events on a CPU.
Affected software
Linux kernel
How to mitigate CVE-2026-97960
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3