boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2024-45009MEDIUM
Linux Linux — mptcp: pm: only decrement add_addr_accepted for MPJ req
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0052   42.2     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    d0876b2284cf8b34dd214b2d0aa21071c345da59 –  —
  Linux    5.10 –                                      5.15.167
TIMELINE
  Aug 21  Reserved by Linux
  Sep 11  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2024-45009 (Linux). CVSS 8.2 → 5.5 (NVD).
CNA: Linux · CVSS v3.1 · 6 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only decrement add_addr_accepted for MPJ req Adding the following warning ... WARN_ON_ONCE(msk->pm.add_addr_accepted == 0) ... before decrementing the add_addr_accepted counter helped to find a bug when running the "remove single subflow" subtest from the mptcp_join.sh selftest. Removing a 'subflow' endpoint will first trigger a RM_ADDR, then the subflow closure. Before this patch, and upon the reception of the RM_ADDR, the other peer will then try to decrement this add_addr_accepted. That's not correct because the attached subflows have not been created upon the reception of an ADD_ADDR. A way to solve that is to decrement the counter only if the attached subflow was an MP_JOIN to a remote id that was not 0, and initiated by the host receiving the RM_ADDR.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
August 21, 2024ReservedReserved by Linux
September 11, 2024PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2024-45009 (Linux). CVSS 8.2 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinuxd0876b2284cf8b34dd214b2d0aa21071c345da59
LinuxLinux5.105.15.167

References (6)

Related

Authoritative record: CVE-2024-45009 at cve.org

Vendors: linux

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-45009 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.