CVE-2024-45010mptcp: pm: only mark 'subflow' endp as available
- 5.5MediumCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as available Adding the following warning ... WARN_ON_ONCE(msk->pm.local_addr_used == 0) ... before decrementing the local_addr_used counter helped to find a bug when running the "remove single address" subtest from the mptcp_join.sh selftests. Removing a 'signal' endpoint will trigger the removal of all subflows linked to this endpoint via mptcp_pm_nl_rm_addr_or_subflow() with rm_type == MPTCP_MIB_RMSUBFLOW. This will decrement the local_addr_used counter, which is wrong in this case because this counter is linked to 'subflow' endpoints, and here it is a 'signal' endpoint that is being removed. Now, the counter is decremented, only if the ID is being used outside of mptcp_pm_nl_rm_addr_or_subflow(), only for 'subflow' endpoints, and if the ID is not 0 -- local_addr_used is not taking into account these ones. This marking of the ID as being available, and the decrement is done no matter if a subflow using this ID is currently available, because the subflow could have been closed before.
Timeline
ID reserved
By Linux
- 21 days later
· 21 days later
Published
- 20 months later
· 20 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 06faa22710342bca5e9c249634199c650799fce6 – < 7fdc870d08960961408a44c569f20f50940e7d4f
- affected 06faa22710342bca5e9c249634199c650799fce6 – < 43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d
- affected 06faa22710342bca5e9c249634199c650799fce6 – < 9849cfc67383ceb167155186f8f8fe8a896b60b3
- affected 06faa22710342bca5e9c249634199c650799fce6 – < 322ea3778965da72862cca2a0c50253aacf65fe6
- affected 5.13
- unaffected < 5.13
- unaffected 6.1.108 – ≤ 6.1.*
- unaffected 6.6.48 – ≤ 6.6.*
- unaffected 6.10.7 – ≤ 6.10.*
- unaffected 6.11 – ≤ *
References
References5
- https://git.kernel.org/stable/c/7fdc870d08960961408a44c569f20f50940e7d4f (opens in a new tab)
- https://git.kernel.org/stable/c/43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d (opens in a new tab)
- https://git.kernel.org/stable/c/9849cfc67383ceb167155186f8f8fe8a896b60b3 (opens in a new tab)
- https://git.kernel.org/stable/c/322ea3778965da72862cca2a0c50253aacf65fe6 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-41594 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-45010)Record last updated .