CVE-2026-23169In 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…
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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
- 4.7 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-362
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 5.11 before 5.15.201; from 5.16 before 6.1.164; from 6.2 before 6.6.125; from 6.7 before 6.12.72; from 6.13 before 6.18.9; 6.19; 6.19; 6.19; and 4 more ranges | NVD |
References
- https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1patch
- https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8cpatch
- https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555patch
- https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94patch
- https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665ebpatch
- https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1dpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.