CVE-2026-99237 Linux Kernel - Race Condition

Linux kernel contains a race condition in tracing subsystem caused by missing trace_types_lock during last boot data reset, letting concurrent readers cause double free and data corruption, exploit requires concurrent tracing readers.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Race Condition
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2 November 2026
Updated
3 November 2026

Vendor fix

Update to the latest Linux kernel version with the tracing subsystem fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs