{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74704", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.927Z", "datePublished": "2026-08-22T15:33:03.491Z", "dateUpdated": "2026-08-22T15:33:03.491Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-22T15:33:03.491Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter\n\nThe sch_cake ACK filter parses packets to find the TCP header and filter\nduplicated ACKs if the flow is backlogged. The parsing code contains a\nWARN_ON(1) which can be triggered by a malformed IP header in certain\ncases. Depending on the system configuration, this leads either to\neither spamming dmesg with warnings, or a panic if panic_on_warn is set.\n\nThe code already correctly skips the offending packet in the branch that\ntriggers the warning, so the WARN_ON itself doesn't really serve any\npurpose. So just drop it altogether to avoid the inconvenient side\neffects."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sched/sch_cake.c"], "versions": [{"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "c1693b7844a6c06d31a565e5a494948034dfd235", "status": "affected", "versionType": "git"}, {"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "a4b52612004a5639c4bfc30ba93ba414b8326e2a", "status": "affected", "versionType": "git"}, {"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3", "status": "affected", "versionType": "git"}, {"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "0c4882bff34558d8d53fb04c3e96da5c327c7dc8", "status": "affected", "versionType": "git"}, {"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "2504a76e5c0694e14e15562730e1339f2d9f9458", "status": "affected", "versionType": "git"}, {"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "cd2f1d9fe8a507c2dc86ad326fe221f121c47734", "status": "affected", "versionType": "git"}, {"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "a1ae353d8355407c1bea971d1c1af5e7f242bb7d", "status": "affected", "versionType": "git"}, {"version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "lessThan": "2a33516f9ef59ad11844d4fc152f889449b5daf3", "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/sched/sch_cake.c"], "versions": [{"version": "4.19", "status": "affected"}, {"version": "0", "lessThan": "4.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "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": "4.19", "versionEndExcluding": "5.10.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "6.6.152"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "6.12.104"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "6.18.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "7.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c1693b7844a6c06d31a565e5a494948034dfd235"}, {"url": "https://git.kernel.org/stable/c/a4b52612004a5639c4bfc30ba93ba414b8326e2a"}, {"url": "https://git.kernel.org/stable/c/ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3"}, {"url": "https://git.kernel.org/stable/c/0c4882bff34558d8d53fb04c3e96da5c327c7dc8"}, {"url": "https://git.kernel.org/stable/c/2504a76e5c0694e14e15562730e1339f2d9f9458"}, {"url": "https://git.kernel.org/stable/c/cd2f1d9fe8a507c2dc86ad326fe221f121c47734"}, {"url": "https://git.kernel.org/stable/c/a1ae353d8355407c1bea971d1c1af5e7f242bb7d"}, {"url": "https://git.kernel.org/stable/c/2a33516f9ef59ad11844d4fc152f889449b5daf3"}], "title": "net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/sched/sch_cake.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c1693b7844a6c06d31a565e5a494948034dfd235", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}, {"lessThan": "a4b52612004a5639c4bfc30ba93ba414b8326e2a", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}, {"lessThan": "ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}, {"lessThan": "0c4882bff34558d8d53fb04c3e96da5c327c7dc8", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}, {"lessThan": "2504a76e5c0694e14e15562730e1339f2d9f9458", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}, {"lessThan": "cd2f1d9fe8a507c2dc86ad326fe221f121c47734", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}, {"lessThan": "a1ae353d8355407c1bea971d1c1af5e7f242bb7d", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}, {"lessThan": "2a33516f9ef59ad11844d4fc152f889449b5daf3", "status": "affected", "version": "8b7138814f29933898ecd31dfc83e35a30ee69f5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/sched/sch_cake.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.19"}, {"lessThan": "4.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "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\nnet/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter\n\nThe sch_cake ACK filter parses packets to find the TCP header and filter\nduplicated ACKs if the flow is backlogged. The parsing code contains a\nWARN_ON(1) which can be triggered by a malformed IP header in certain\ncases. Depending on the system configuration, this leads either to\neither spamming dmesg with warnings, or a panic if panic_on_warn is set.\n\nThe code already correctly skips the offending packet in the branch that\ntriggers the warning, so the WARN_ON itself doesn't really serve any\npurpose. So just drop it altogether to avoid the inconvenient side\neffects."}], "id": "CVE-2026-74704", "lastModified": "2026-08-22T16:16:45.090", "metrics": {}, "published": "2026-08-22T16:16:45.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0c4882bff34558d8d53fb04c3e96da5c327c7dc8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2504a76e5c0694e14e15562730e1339f2d9f9458"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a33516f9ef59ad11844d4fc152f889449b5daf3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a1ae353d8355407c1bea971d1c1af5e7f242bb7d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a4b52612004a5639c4bfc30ba93ba414b8326e2a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c1693b7844a6c06d31a565e5a494948034dfd235"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd2f1d9fe8a507c2dc86ad326fe221f121c47734"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,c1693b7844a6c06d31a565e5a494948034dfd235)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,a4b52612004a5639c4bfc30ba93ba414b8326e2a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,0c4882bff34558d8d53fb04c3e96da5c327c7dc8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,2504a76e5c0694e14e15562730e1339f2d9f9458)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,cd2f1d9fe8a507c2dc86ad326fe221f121c47734)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,a1ae353d8355407c1bea971d1c1af5e7f242bb7d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b7138814f29933898ecd31dfc83e35a30ee69f5,2a33516f9ef59ad11844d4fc152f889449b5daf3)"}}], "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": "generic", "value": "4.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.265,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.216,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.183,6.2.0)"}}, {"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": "2026-08-22T18:15:03.690128+00:00", "updated": "2026-08-22T22:45:03.232706+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-754"]}