CVE-2026-98624

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98624", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.360Z", "datePublished": "2026-10-18T15:19:45.566Z", "dateUpdated": "2026-10-19T09:22:52.337Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:22:52.337Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nfnetlink_queue.c"], "versions": [{"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "46432f2e76f7c385d82506304a2928e7d293289f", "status": "affected", "versionType": "git"}, {"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "597320337c3da06c92a9e95cfc755da66fedc476", "status": "affected", "versionType": "git"}, {"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "2e9be1302f25c9be51c2fb8c907bc6d8a1050e33", "status": "affected", "versionType": "git"}, {"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "d559e06a5ab7c064100aafd5c826eadd0f1c6216", "status": "affected", "versionType": "git"}, {"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "1d1184411599a7c2217560bab3bbe641c6d03b95", "status": "affected", "versionType": "git"}, {"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1", "status": "affected", "versionType": "git"}, {"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "8137a39e08e838ced234044384740ceeb99ed388", "status": "affected", "versionType": "git"}, {"version": "7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb", "lessThan": "9461613afc59acef44a0071b0dd5075f6e993ffe", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nfnetlink_queue.c"], "versions": [{"version": "2.6.14", "status": "affected"}, {"version": "0", "lessThan": "2.6.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.55", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.18.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "7.3"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-98624", "lastModified": "2026-10-19T10:19:26.583", "metrics": {}, "published": "2026-10-18T16:17:15.393", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1d1184411599a7c2217560bab3bbe641c6d03b95"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2e9be1302f25c9be51c2fb8c907bc6d8a1050e33"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46432f2e76f7c385d82506304a2928e7d293289f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/597320337c3da06c92a9e95cfc755da66fedc476"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8137a39e08e838ced234044384740ceeb99ed388"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9461613afc59acef44a0071b0dd5075f6e993ffe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d559e06a5ab7c064100aafd5c826eadd0f1c6216"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: netfilter: nfnetlink_queue: hold nfnl mutex in event notifier", "id": "2554999", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2554999"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-366", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: nfnetlink_queue: hold nfnl mutex in event notifier\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:\nOops: general protection fault, [..]\nRIP: 0010:__instance_destroy+0x60/0x210 [nfnetlink_queue]\nCall Trace:\nnfqnl_recv_config+0x9b0/0xdc0 [nfnetlink_queue]\nnfnetlink_rcv_msg+0x7c2/0xeb0\n? __pfx_nfnetlink_rcv_msg+0x10/0x10\nAfter this, parallel UNBIND and URELEASE events are impossible.\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.", "A flaw was found in the Linux kernel's netfilter subsystem. A race condition exists between socket release event processing and configuration requests within the nfnetlink_queue component. A local user could exploit this vulnerability by executing concurrent socket operations, triggering a kernel crash that results in a denial of service (DoS)."], "name": "CVE-2026-98624", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98624\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98624\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98624.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,46432f2e76f7c385d82506304a2928e7d293289f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,597320337c3da06c92a9e95cfc755da66fedc476)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,2e9be1302f25c9be51c2fb8c907bc6d8a1050e33)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,d559e06a5ab7c064100aafd5c826eadd0f1c6216)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,1d1184411599a7c2217560bab3bbe641c6d03b95)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,07a3ec8fdc5a1267c00cd6fd1cf8bbb5cda913c1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,8137a39e08e838ced234044384740ceeb99ed388)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7af4cc3fa158ff1dda6e7451c7e6afa6b0bb85cb,9461613afc59acef44a0071b0dd5075f6e993ffe)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.271,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.222,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.55,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3, *]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-18T22:45:04.779771+00:00", "updated": "2026-10-22T21:45:06.449384+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362", "CWE-366"]}