{"id":"CVE-2024-27431","revision":null,"records":[{"revision":"7c92895ad57b41c79b2b37b4f14482c2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-27431","aliases":[],"title":"cpumap: Zero-initialise xdp_rxq_info struct before running XDP program","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpumap: Zero-initialise xdp_rxq_info struct before running XDP program\n\nWhen running an XDP program that is attached to a cpumap entry, we don't\ninitialise the xdp_rxq_info data structure being used in the xdp_buff\nthat backs the XDP program invocation. Tobias noticed that this leads to\nrandom values being returned as the xdp_md->rx_queue_index value for XDP\nprograms running in a cpumap.\n\nThis means we're basically returning the contents of the uninitialised\nmemory, which is bad. Fix this by zero-initialising the rxq data\nstructure before running the XDP program.","state":0,"publishedAt":"2024-05-17T12:02:10.274+00:00","modifiedAt":"2026-10-15T00:40:19.62+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 \"kernel/bpf/cpumap.c\"\n ],\n \"versions\": [\n {\n \"version\": \"9216477449f33cdbc9c9a99d49f500b7fbb81702\",\n \"lessThan\": \"5f4e51abfbe6eb444fa91906a5cd083044278297\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9216477449f33cdbc9c9a99d49f500b7fbb81702\",\n \"lessThan\": \"f0363af9619c77730764f10360e36c6445c12f7b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9216477449f33cdbc9c9a99d49f500b7fbb81702\",\n \"lessThan\": \"3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9216477449f33cdbc9c9a99d49f500b7fbb81702\",\n \"lessThan\": \"f562e4c4aab00986dde3093c4be919c3f2b85a4a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9216477449f33cdbc9c9a99d49f500b7fbb81702\",\n \"lessThan\": \"eaa7cb836659ced2d9f814ac32aa3ec193803ed6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"9216477449f33cdbc9c9a99d49f500b7fbb81702\",\n \"lessThan\": \"2487007aa3b9fafbd2cb14068f49791ce1d7ede5\",\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 \"kernel/bpf/cpumap.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.9\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.9\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.213\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.152\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.82\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.22\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.7.10\",\n \"lessThanOrEqual\": \"6.7.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.8\",\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/5f4e51abfbe6eb444fa91906a5cd083044278297","https://git.kernel.org/stable/c/f0363af9619c77730764f10360e36c6445c12f7b","https://git.kernel.org/stable/c/3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95","https://git.kernel.org/stable/c/f562e4c4aab00986dde3093c4be919c3f2b85a4a","https://git.kernel.org/stable/c/eaa7cb836659ced2d9f814ac32aa3ec193803ed6","https://git.kernel.org/stable/c/2487007aa3b9fafbd2cb14068f49791ce1d7ede5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-27431","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-27431","identifiers":["CVE-2024-27431"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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