{"cve":"CVE-2026-98624","nvd":{"published":"2026-10-18T16:17:15.393","modified":"2026-10-19T10:19:26.583","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_queue: hold nfnl mutex in event notifier\n\nWe must serialize the release notifier and the config netlink function.\nA concurrent thread can issue close() which can call the release function\nwhile unrelated socket processes UNBIND request for same portid:\n\nOops: general protection fault, [..]\nRIP: 0010:__instance_destroy+0x60/0x210 [nfnetlink_queue]\nCall Trace:\n nfqnl_recv_config+0x9b0/0xdc0 [nfnetlink_queue]\n nfnetlink_rcv_msg+0x7c2/0xeb0\n ? __pfx_nfnetlink_rcv_msg+0x10/0x10\n\nAfter this, parallel UNBIND and URELEASE events are impossible.\n\nThis change isn't nice, but its the shortest fix given instances\nare not refcounted and the nfnetlink config callback drops the\nrcu read lock early due to need for sleeping allocations.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1","https://git.kernel.org/stable/c/1d1184411599a7c2217560bab3bbe641c6d03b95","https://git.kernel.org/stable/c/2e9be1302f25c9be51c2fb8c907bc6d8a1050e33","https://git.kernel.org/stable/c/46432f2e76f7c385d82506304a2928e7d293289f","https://git.kernel.org/stable/c/597320337c3da06c92a9e95cfc755da66fedc476"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98624","score":0.00177,"percentile":0.07173,"date":"2026-10-26"},"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."]}