{"api_version":"1","generated_at":"2026-10-23T01:16:45+00:00","cve":"CVE-2026-98624","urls":{"html":"https://cve.report/CVE-2026-98624","api":"https://cve.report/api/cve/CVE-2026-98624.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98624","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98624"},"summary":{"title":"netfilter: nfnetlink_queue: hold nfnl mutex in event notifier","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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:15","updated_at":"2026-10-19 10:19:26"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2e9be1302f25c9be51c2fb8c907bc6d8a1050e33","name":"https://git.kernel.org/stable/c/2e9be1302f25c9be51c2fb8c907bc6d8a1050e33","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1d1184411599a7c2217560bab3bbe641c6d03b95","name":"https://git.kernel.org/stable/c/1d1184411599a7c2217560bab3bbe641c6d03b95","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9461613afc59acef44a0071b0dd5075f6e993ffe","name":"https://git.kernel.org/stable/c/9461613afc59acef44a0071b0dd5075f6e993ffe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8137a39e08e838ced234044384740ceeb99ed388","name":"https://git.kernel.org/stable/c/8137a39e08e838ced234044384740ceeb99ed388","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d559e06a5ab7c064100aafd5c826eadd0f1c6216","name":"https://git.kernel.org/stable/c/d559e06a5ab7c064100aafd5c826eadd0f1c6216","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/597320337c3da06c92a9e95cfc755da66fedc476","name":"https://git.kernel.org/stable/c/597320337c3da06c92a9e95cfc755da66fedc476","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1","name":"https://git.kernel.org/stable/c/07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/46432f2e76f7c385d82506304a2928e7d293289f","name":"https://git.kernel.org/stable/c/46432f2e76f7c385d82506304a2928e7d293289f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98624","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98624","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb 46432f2e76f7c385d82506304a2928e7d293289f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb 597320337c3da06c92a9e95cfc755da66fedc476 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb 2e9be1302f25c9be51c2fb8c907bc6d8a1050e33 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb d559e06a5ab7c064100aafd5c826eadd0f1c6216 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb 1d1184411599a7c2217560bab3bbe641c6d03b95 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb 07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb 8137a39e08e838ced234044384740ceeb99ed388 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb 9461613afc59acef44a0071b0dd5075f6e993ffe git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.271 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.222 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.189 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.158 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.55 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.9 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/netfilter/nfnetlink_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"46432f2e76f7c385d82506304a2928e7d293289f","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"},{"lessThan":"597320337c3da06c92a9e95cfc755da66fedc476","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"},{"lessThan":"2e9be1302f25c9be51c2fb8c907bc6d8a1050e33","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"},{"lessThan":"d559e06a5ab7c064100aafd5c826eadd0f1c6216","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"},{"lessThan":"1d1184411599a7c2217560bab3bbe641c6d03b95","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"},{"lessThan":"07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"},{"lessThan":"8137a39e08e838ced234044384740ceeb99ed388","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"},{"lessThan":"9461613afc59acef44a0071b0dd5075f6e993ffe","status":"affected","version":"7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/netfilter/nfnetlink_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.14"},{"lessThan":"2.6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.271","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.222","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.189","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.158","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.112","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.55","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.271","versionStartIncluding":"2.6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.222","versionStartIncluding":"2.6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.189","versionStartIncluding":"2.6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.158","versionStartIncluding":"2.6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"2.6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.55","versionStartIncluding":"2.6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.9","versionStartIncluding":"2.6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"2.6.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:22:52.337Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/46432f2e76f7c385d82506304a2928e7d293289f"},{"url":"https://git.kernel.org/stable/c/597320337c3da06c92a9e95cfc755da66fedc476"},{"url":"https://git.kernel.org/stable/c/2e9be1302f25c9be51c2fb8c907bc6d8a1050e33"},{"url":"https://git.kernel.org/stable/c/d559e06a5ab7c064100aafd5c826eadd0f1c6216"},{"url":"https://git.kernel.org/stable/c/1d1184411599a7c2217560bab3bbe641c6d03b95"},{"url":"https://git.kernel.org/stable/c/07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1"},{"url":"https://git.kernel.org/stable/c/8137a39e08e838ced234044384740ceeb99ed388"},{"url":"https://git.kernel.org/stable/c/9461613afc59acef44a0071b0dd5075f6e993ffe"}],"title":"netfilter: nfnetlink_queue: hold nfnl mutex in event notifier","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98624","datePublished":"2026-10-18T15:19:45.566Z","dateReserved":"2026-09-25T10:25:14.360Z","dateUpdated":"2026-10-19T09:22:52.337Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:15","lastModifiedDate":"2026-10-19 10:19:26","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98624","Ordinal":"1","Title":"netfilter: nfnetlink_queue: hold nfnl mutex in event notifier","CVE":"CVE-2026-98624","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98624","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"netfilter: nfnetlink_queue: hold nfnl mutex in event notifier"}]}}}