CVE-2026-23126

Severity
4.7MEDIUM
EPSS
0.0%
top 97.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedFeb 14

Description

In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpf_bound_progs list The netdevsim driver lacks a protection mechanism for operations on the bpf_bound_progs list. When the nsim_bpf_create_prog() performs list_add_tail, it is possible that nsim_bpf_destroy_prog() is simultaneously performs list_del. Concurrent operations on the list may lead to list corruption and trigger a kernel crash as follows: [ 417.290971] kernel

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6

Affected Packages3 packages

NVDlinux/linux_kernel4.166.1.162+4
CVEListV5linux/linux31d3ad832948c75139b0e5b653912f7898a1d5d53f560cfc7706029294132482fff5d1bc7884b70d+5
Debianlinux< 6.1.162-1+2

Patches

🔴Vulnerability Details

3
GHSA
GHSA-2wj2-8hhp-h6hm: In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpf_bound_progs list The2026-02-14
CVEList
netdevsim: fix a race issue related to the operation on bpf_bound_progs list2026-02-14
OSV
CVE-2026-23126: In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpf_bound_progs list The n2026-02-14

📋Vendor Advisories

3
Red Hat
kernel: Linux kernel: Denial of Service in netdevsim due to race condition in BPF program list operations2026-02-14
Microsoft
netdevsim: fix a race issue related to the operation on bpf_bound_progs list2026-02-10
Debian
CVE-2026-23126: linux - In the Linux kernel, the following vulnerability has been resolved: netdevsim: ...2026

🕵️Threat Intelligence

1
Wiz
CVE-2026-23126 Impact, Exploitability, and Mitigation Steps | Wiz
CVE-2026-23126 (MEDIUM CVSS 4.7) | In the Linux kernel | cvebase.io