Race condition in Linux kernel - CVE-2026-97499
Published: September 24, 2026
Vulnerability identifier: #VU151990
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-2026-97499
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 the CoreSight ETM perf callbacks when device registration or unregistration updates the per-CPU source device pointer. A local user can invoke perf event callbacks concurrently with these updates to trigger a race condition.
AUX pause or resume callbacks may preempt the disable callback in NMI context.
Affected software
Linux kernel
How to mitigate CVE-2026-97499
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3