CVE-2026-97932
kernel: tracing: Don't dereference trace_event_file in deferred trigger free
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · September 30, 2026
Description
A flaw was found in the Linux kernel's tracing subsystem. A use-after-free vulnerability occurs when an event trigger performs deferred cleanup while a tracing instance is removed, leading to the access of already freed memory. A local user could exploit this flaw to cause memory corruption, resulting in a system crash and Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference