{"cve":"CVE-2024-45010","nvd":{"published":"2024-09-11T16:15:06.483","modified":"2026-06-17T07:53:24.850","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: only mark 'subflow' endp as available\n\nAdding the following warning ...\n\n  WARN_ON_ONCE(msk->pm.local_addr_used == 0)\n\n... before decrementing the local_addr_used counter helped to find a bug\nwhen running the \"remove single address\" subtest from the mptcp_join.sh\nselftests.\n\nRemoving a 'signal' endpoint will trigger the removal of all subflows\nlinked to this endpoint via mptcp_pm_nl_rm_addr_or_subflow() with\nrm_type == MPTCP_MIB_RMSUBFLOW. This will decrement the local_addr_used\ncounter, which is wrong in this case because this counter is linked to\n'subflow' endpoints, and here it is a 'signal' endpoint that is being\nremoved.\n\nNow, the counter is decremented, only if the ID is being used outside\nof mptcp_pm_nl_rm_addr_or_subflow(), only for 'subflow' endpoints, and\nif the ID is not 0 -- local_addr_used is not taking into account these\nones. This marking of the ID as being available, and the decrement is\ndone no matter if a subflow using this ID is currently available,\nbecause the subflow could have been closed before.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/322ea3778965da72862cca2a0c50253aacf65fe6","https://git.kernel.org/stable/c/43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d","https://git.kernel.org/stable/c/7fdc870d08960961408a44c569f20f50940e7d4f","https://git.kernel.org/stable/c/9849cfc67383ceb167155186f8f8fe8a896b60b3","https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:54:38.012257375+00:00"},"epss":{"cve":"CVE-2024-45010","score":0.00222,"percentile":0.12863,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}