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CVE-2026-23169

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:57f176f8d1e814f164e1fcb3180aa166947e8bd583948e8d1c1a0ad93158e624
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mptcp/pm_kernel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"338d40bab283da2639780ee3e458fb61f1567d8c","status":"affected","version":"141694df6573b49aa4143c92556544b4b0bbda72","versionType":"git"},{"lessThan":"7896dbe990d56d5bb8097863b2645355633665eb","status":"affected","version":"141694df6573b49aa4143c92556544b4b0bbda72","versionType":"git"},{"lessThan":"455e882192c9833f176f3fbbbb2f036b6c5bf555","status":"affected","version":"141694df6573b49aa4143c92…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/mptcp/pm_kernel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.201","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.164","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.125","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mptcp/pm_kernel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"338d40bab283da2639780ee3e458fb61f1567d8c","status":"affected","version":"141694df6573b49aa4143c92556544b4b0bbda72","versionType":"git"},{"lessThan":"7896dbe990d56d5bb8097863b2645355633665eb","status":"affected","version":"141694df6573b49aa4143c92556544b4b0bbda72","versionType":"git"},{"lessThan":"455e882192c9833f176f3fbbbb2f036b6c5bf555","status":"affected","version":"141694df6573b49aa4143c92…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/mptcp/pm_kernel.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.201","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.164","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.125","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/metrics/0/cvssV3_1

Source references

6 source assertions
{"url":"https://git.kernel.org/stable/c/1f1b9523527df02685dde603f20ff6e603d8e4a1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/338d40bab283da2639780ee3e458fb61f1567d8c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/455e882192c9833f176f3fbbbb2f036b6c5bf555"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/51223bdd0f60b06cfc7f25885c4d4be917adba94"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/7896dbe990d56d5bb8097863b2645355633665eb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e2a9eeb69f7d4ca4cf4c70463af77664fdb6ab1d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c26e2f87a9d9b277f6c8cc3624224896cce4a60c5ce69223c55289d0f02338e0 · sha256:c5e6852da2cd4f32… · /containers/cna/references/5

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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