{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74624", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.921Z", "datePublished": "2026-08-22T15:32:07.193Z", "dateUpdated": "2026-08-22T15:32:07.193Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-22T15:32:07.193Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack: defer invalid log until after unlock\n\nTCP and SCTP conntrack paths can emit invalid-packet logs while ct->lock\nis still held.\n\nWhen invalid logging is routed to nfnetlink_log and conntrack export is\nenabled, the log path can re-enter conntrack netlink glue and dump the\nsame conntrack again. Protocol attribute dumping may take ct->lock, so\nlogging while holding that lock can deadlock.\n\nDefer the TCP invalid logs by storing only the minimal log context while\nct->lock is held and emitting the log after unlocking. Also make the TCP\ntimeout-lowering invalid path return whether a log is needed, then emit\nthat log after unlocking.\n\nDo the same for the SCTP invalid state-transition log that can be reached\nwhile ct->lock is held.\n\nAdd a lockdep assertion to nf_ct_l4proto_log_invalid() so future callers\nthat log invalid conntracks while holding ct->lock are caught outside TCP\nand SCTP as well."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_conntrack_proto.c", "net/netfilter/nf_conntrack_proto_sctp.c", "net/netfilter/nf_conntrack_proto_tcp.c"], "versions": [{"version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "lessThan": "63853eb20bba4e00b7cd0b8cfc19337bbaaf5037", "status": "affected", "versionType": "git"}, {"version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "lessThan": "9480fcf70a5aa9d320088a01c95df0e5e6391f4a", "status": "affected", "versionType": "git"}, {"version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "lessThan": "0424186d570aa4d1ad17f516afb86bd9eaa4f42e", "status": "affected", "versionType": "git"}, {"version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "lessThan": "c0224327b7cbed9d3198e8dbec847281053dcd06", "status": "affected", "versionType": "git"}, {"version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "lessThan": "2d19b95c9723001f214f7a47d67b09f46238f200", "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/nf_conntrack_proto.c", "net/netfilter/nf_conntrack_proto_sctp.c", "net/netfilter/nf_conntrack_proto_tcp.c"], "versions": [{"version": "6.1", "status": "affected"}, {"version": "0", "lessThan": "6.1", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.152", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.104", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.45", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.9", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.1", "versionEndExcluding": "6.6.152"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.12.104"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.18.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "7.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/63853eb20bba4e00b7cd0b8cfc19337bbaaf5037"}, {"url": "https://git.kernel.org/stable/c/9480fcf70a5aa9d320088a01c95df0e5e6391f4a"}, {"url": "https://git.kernel.org/stable/c/0424186d570aa4d1ad17f516afb86bd9eaa4f42e"}, {"url": "https://git.kernel.org/stable/c/c0224327b7cbed9d3198e8dbec847281053dcd06"}, {"url": "https://git.kernel.org/stable/c/2d19b95c9723001f214f7a47d67b09f46238f200"}], "title": "netfilter: nf_conntrack: defer invalid log until after unlock", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/netfilter/nf_conntrack_proto.c", "net/netfilter/nf_conntrack_proto_sctp.c", "net/netfilter/nf_conntrack_proto_tcp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "63853eb20bba4e00b7cd0b8cfc19337bbaaf5037", "status": "affected", "version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "versionType": "git"}, {"lessThan": "9480fcf70a5aa9d320088a01c95df0e5e6391f4a", "status": "affected", "version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "versionType": "git"}, {"lessThan": "0424186d570aa4d1ad17f516afb86bd9eaa4f42e", "status": "affected", "version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "versionType": "git"}, {"lessThan": "c0224327b7cbed9d3198e8dbec847281053dcd06", "status": "affected", "version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "versionType": "git"}, {"lessThan": "2d19b95c9723001f214f7a47d67b09f46238f200", "status": "affected", "version": "d9a6f0d0df1899ff9086a57abc600e414f4b8cdd", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/netfilter/nf_conntrack_proto.c", "net/netfilter/nf_conntrack_proto_sctp.c", "net/netfilter/nf_conntrack_proto_tcp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.1"}, {"lessThan": "6.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.152", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.104", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.45", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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: nf_conntrack: defer invalid log until after unlock\n\nTCP and SCTP conntrack paths can emit invalid-packet logs while ct->lock\nis still held.\n\nWhen invalid logging is routed to nfnetlink_log and conntrack export is\nenabled, the log path can re-enter conntrack netlink glue and dump the\nsame conntrack again. Protocol attribute dumping may take ct->lock, so\nlogging while holding that lock can deadlock.\n\nDefer the TCP invalid logs by storing only the minimal log context while\nct->lock is held and emitting the log after unlocking. Also make the TCP\ntimeout-lowering invalid path return whether a log is needed, then emit\nthat log after unlocking.\n\nDo the same for the SCTP invalid state-transition log that can be reached\nwhile ct->lock is held.\n\nAdd a lockdep assertion to nf_ct_l4proto_log_invalid() so future callers\nthat log invalid conntracks while holding ct->lock are caught outside TCP\nand SCTP as well."}], "id": "CVE-2026-74624", "lastModified": "2026-08-22T16:16:35.280", "metrics": {}, "published": "2026-08-22T16:16:35.280", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0424186d570aa4d1ad17f516afb86bd9eaa4f42e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2d19b95c9723001f214f7a47d67b09f46238f200"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/63853eb20bba4e00b7cd0b8cfc19337bbaaf5037"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9480fcf70a5aa9d320088a01c95df0e5e6391f4a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c0224327b7cbed9d3198e8dbec847281053dcd06"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d9a6f0d0df1899ff9086a57abc600e414f4b8cdd,63853eb20bba4e00b7cd0b8cfc19337bbaaf5037)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d9a6f0d0df1899ff9086a57abc600e414f4b8cdd,9480fcf70a5aa9d320088a01c95df0e5e6391f4a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d9a6f0d0df1899ff9086a57abc600e414f4b8cdd,0424186d570aa4d1ad17f516afb86bd9eaa4f42e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d9a6f0d0df1899ff9086a57abc600e414f4b8cdd,c0224327b7cbed9d3198e8dbec847281053dcd06)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d9a6f0d0df1899ff9086a57abc600e414f4b8cdd,2d19b95c9723001f214f7a47d67b09f46238f200)"}}], "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": "6.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.152,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.104,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.45,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.9,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "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": "2026-08-22T16:45:03.758678+00:00", "updated": "2026-08-22T19:00:14.130432+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-1338"]}