CVEvulnerability

CVE-2026-23169

4.7 MEDIUM Published 2026-02-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2026-02-14
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-362

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.

Affected configurations

• linux linux kernel (>= 5.11 < 5.15.201) • linux linux kernel (>= 5.16 < 6.1.164) • linux linux kernel (>= 6.2 < 6.6.125) • linux linux kernel (>= 6.7 < 6.12.72) • linux linux kernel (>= 6.13 < 6.18.9) • linux linux kernel 6.19

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References