CVE-2026-23169

MEDIUM EPSS 2.9%
Published Feb 14, 20264mo ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Feb 14, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() syzbot and Eulgyu Kim reported crashes in mptcp_pm_nl_get_local_id() and/or mptcp_pm_nl_is_backup() Root cause is list_splice_init() in mptcp_pm_nl_flush_addrs_doit() which is not RCU ready. list_splice_init_rcu() can not be called here while holding pernet->lock spinlock. Many thanks to Eulgyu Kim for providing a repro and testing our patches.

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-362

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥5.11  –  <5.15.201
linuxlinux_kernel*≥5.16  –  <6.1.164
linuxlinux_kernel*≥6.2  –  <6.6.125
linuxlinux_kernel*≥6.7  –  <6.12.72
linuxlinux_kernel*≥6.13  –  <6.18.9
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d
    Patch