Race condition within a thread in Linux kernel - CVE-2026-23120

 

Race condition within a thread in Linux kernel - CVE-2026-23120

Published: February 16, 2026


Vulnerability identifier: #VU122936
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23120
CWE-ID: CWE-366
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to corrupt data.

The vulnerability exists due to a data race within the l2tp_tunnel_del_work() function in net/l2tp/l2tp_core.c. A local user can corrupt data.


How to mitigate CVE-2026-23120

Install update from vendor's repository.

Sources