{"id":"CVE-2024-36974","revision":null,"records":[{"revision":"5e05398f71054d9680801c5ca678be64","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-36974","aliases":[],"title":"net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP\n\nIf one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided,\ntaprio_parse_mqprio_opt() must validate it, or userspace\ncan inject arbitrary data to the kernel, the second time\ntaprio_change() is called.\n\nFirst call (with valid attributes) sets dev->num_tc\nto a non zero value.\n\nSecond call (with arbitrary mqprio attributes)\nreturns early from taprio_parse_mqprio_opt()\nand bad things can happen.","state":0,"publishedAt":"2024-06-18T19:15:07.892+00:00","modifiedAt":"2026-10-15T00:43:06.154+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/sched/sch_taprio.c\"\n ],\n \"versions\": [\n {\n \"version\": \"a3d43c0d56f1b94e74963a2fbadfb70126d92213\",\n \"lessThan\": \"c6041e7124464ce7e896ee3f912897ce88a0c4ec\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a3d43c0d56f1b94e74963a2fbadfb70126d92213\",\n \"lessThan\": \"6db4af09987cc5d5f0136bd46148b0e0460dae5b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a3d43c0d56f1b94e74963a2fbadfb70126d92213\",\n \"lessThan\": \"d3dde4c217f0c31ab0621912e682b57e677dd923\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a3d43c0d56f1b94e74963a2fbadfb70126d92213\",\n \"lessThan\": \"0bf6cc96612bd396048f57d63f1ad454a846e39c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a3d43c0d56f1b94e74963a2fbadfb70126d92213\",\n \"lessThan\": \"724050ae4b76e4fae05a923cb54101d792cf4404\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a3d43c0d56f1b94e74963a2fbadfb70126d92213\",\n \"lessThan\": \"c37a27a35eadb59286c9092c49c241270c802ae2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a3d43c0d56f1b94e74963a2fbadfb70126d92213\",\n \"lessThan\": \"f921a58ae20852d188f70842431ce6519c4fdc36\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/sched/sch_taprio.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.2\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.2\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.279\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.221\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.162\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.95\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.35\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.9.6\",\n \"lessThanOrEqual\": \"6.9.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.10\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/c6041e7124464ce7e896ee3f912897ce88a0c4ec","https://git.kernel.org/stable/c/6db4af09987cc5d5f0136bd46148b0e0460dae5b","https://git.kernel.org/stable/c/d3dde4c217f0c31ab0621912e682b57e677dd923","https://git.kernel.org/stable/c/0bf6cc96612bd396048f57d63f1ad454a846e39c","https://git.kernel.org/stable/c/724050ae4b76e4fae05a923cb54101d792cf4404","https://git.kernel.org/stable/c/c37a27a35eadb59286c9092c49c241270c802ae2","https://git.kernel.org/stable/c/f921a58ae20852d188f70842431ce6519c4fdc36"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-36974","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-36974","identifiers":["CVE-2024-36974"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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