CVE-2026-23169

Source
https://cve.org/CVERecord?id=CVE-2026-23169
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23169.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23169
Downstream
Related
Published
2026-02-14T16:01:32.139Z
Modified
2026-03-24T08:59:22.928860Z
Summary
mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()
Details

In the Linux kernel, the following vulnerability has been resolved:

mptcp: fix race in mptcppmnlflushaddrs_doit()

syzbot and Eulgyu Kim reported crashes in mptcppmnlgetlocalid() and/or mptcppmnlis_backup()

Root cause is listspliceinit() in mptcppmnlflushaddrs_doit() which is not RCU ready.

listspliceinit_rcu() can not be called here while holding pernet->lock spinlock.

Many thanks to Eulgyu Kim for providing a repro and testing our patches.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23169.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
141694df6573b49aa4143c92556544b4b0bbda72
Fixed
338d40bab283da2639780ee3e458fb61f1567d8c
Fixed
7896dbe990d56d5bb8097863b2645355633665eb
Fixed
455e882192c9833f176f3fbbbb2f036b6c5bf555
Fixed
51223bdd0f60b06cfc7f25885c4d4be917adba94
Fixed
1f1b9523527df02685dde603f20ff6e603d8e4a1
Fixed
e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23169.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.201
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.164
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.125
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.72
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.9

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23169.json"