CVE-2026-23126
kernel: Linux kernel: Denial of Service in netdevsim due to race condition in BPF program list operations
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 14, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel. The netdevsim driver lacks proper protection for operations on the bpf_bound_progs list. A local user could exploit a race condition when bpf_bound_progs list operations are performed concurrently. This could lead to list corruption and trigger a kernel crash, resulting in a 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 · 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE-820 · Missing Synchronization