{"api_version":"1","generated_at":"2026-08-22T22:42:16+00:00","cve":"CVE-2026-74616","urls":{"html":"https://cve.report/CVE-2026-74616","api":"https://cve.report/api/cve/CVE-2026-74616.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74616","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74616"},"summary":{"title":"xdp: reject clones that overrun skb_shared_info tailroom","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxdp: reject clones that overrun skb_shared_info tailroom\n\nxdpf_clone() clones broadcast copies into a single page and sets\nframe_sz to PAGE_SIZE. __xdp_build_skb_from_frame() later treats that\npage like a normal XDP frame and expects the usual skb_shared_info\ntailroom at the end of the buffer.\n\nThe current check only rejects frames whose linear xdp_frame header,\nheadroom, and packet data exceed PAGE_SIZE. A source frame backed by a\nlarger allocation can still satisfy that check while extending into the\nclone's required shared-info area. When such a clone is converted back\ninto an skb, build_skb_around() places skb_shared_info over live packet\nbytes and later writes can corrupt XDP return metadata.\n\nReject clones unless their linear area fits inside\nSKB_WITH_OVERHEAD(PAGE_SIZE), matching the tailroom requirement already\nenforced by the XDP-to-skb conversion path.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:34","updated_at":"2026-08-22 16:16:34"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e48e8edbef2eb824201495daa5234560f632b23c","name":"https://git.kernel.org/stable/c/e48e8edbef2eb824201495daa5234560f632b23c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/58408982fa39f9758124cec169f42854d6f98f35","name":"https://git.kernel.org/stable/c/58408982fa39f9758124cec169f42854d6f98f35","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/685edea27ac68d08fe4dbd3de74b858d2ad8e830","name":"https://git.kernel.org/stable/c/685edea27ac68d08fe4dbd3de74b858d2ad8e830","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fab820f1691a9e26d9031f18aae1e9ce09078f92","name":"https://git.kernel.org/stable/c/fab820f1691a9e26d9031f18aae1e9ce09078f92","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ef4b7c7046d29a67090de15af0da0d1ae8d1b192","name":"https://git.kernel.org/stable/c/ef4b7c7046d29a67090de15af0da0d1ae8d1b192","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ba13763d667e008e185fedf592d53846a5b457d1","name":"https://git.kernel.org/stable/c/ba13763d667e008e185fedf592d53846a5b457d1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0","name":"https://git.kernel.org/stable/c/f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74616","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74616","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e624d4ed4aa8cc3c69d1359b0aaea539203ed266 58408982fa39f9758124cec169f42854d6f98f35 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e624d4ed4aa8cc3c69d1359b0aaea539203ed266 685edea27ac68d08fe4dbd3de74b858d2ad8e830 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e624d4ed4aa8cc3c69d1359b0aaea539203ed266 ba13763d667e008e185fedf592d53846a5b457d1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e624d4ed4aa8cc3c69d1359b0aaea539203ed266 ef4b7c7046d29a67090de15af0da0d1ae8d1b192 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e624d4ed4aa8cc3c69d1359b0aaea539203ed266 fab820f1691a9e26d9031f18aae1e9ce09078f92 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e624d4ed4aa8cc3c69d1359b0aaea539203ed266 f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e624d4ed4aa8cc3c69d1359b0aaea539203ed266 e48e8edbef2eb824201495daa5234560f632b23c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/core/xdp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"58408982fa39f9758124cec169f42854d6f98f35","status":"affected","version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","versionType":"git"},{"lessThan":"685edea27ac68d08fe4dbd3de74b858d2ad8e830","status":"affected","version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","versionType":"git"},{"lessThan":"ba13763d667e008e185fedf592d53846a5b457d1","status":"affected","version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","versionType":"git"},{"lessThan":"ef4b7c7046d29a67090de15af0da0d1ae8d1b192","status":"affected","version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","versionType":"git"},{"lessThan":"fab820f1691a9e26d9031f18aae1e9ce09078f92","status":"affected","version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","versionType":"git"},{"lessThan":"f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0","status":"affected","version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","versionType":"git"},{"lessThan":"e48e8edbef2eb824201495daa5234560f632b23c","status":"affected","version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/core/xdp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","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"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"5.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxdp: reject clones that overrun skb_shared_info tailroom\n\nxdpf_clone() clones broadcast copies into a single page and sets\nframe_sz to PAGE_SIZE. __xdp_build_skb_from_frame() later treats that\npage like a normal XDP frame and expects the usual skb_shared_info\ntailroom at the end of the buffer.\n\nThe current check only rejects frames whose linear xdp_frame header,\nheadroom, and packet data exceed PAGE_SIZE. A source frame backed by a\nlarger allocation can still satisfy that check while extending into the\nclone's required shared-info area. When such a clone is converted back\ninto an skb, build_skb_around() places skb_shared_info over live packet\nbytes and later writes can corrupt XDP return metadata.\n\nReject clones unless their linear area fits inside\nSKB_WITH_OVERHEAD(PAGE_SIZE), matching the tailroom requirement already\nenforced by the XDP-to-skb conversion path."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:32:01.313Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/58408982fa39f9758124cec169f42854d6f98f35"},{"url":"https://git.kernel.org/stable/c/685edea27ac68d08fe4dbd3de74b858d2ad8e830"},{"url":"https://git.kernel.org/stable/c/ba13763d667e008e185fedf592d53846a5b457d1"},{"url":"https://git.kernel.org/stable/c/ef4b7c7046d29a67090de15af0da0d1ae8d1b192"},{"url":"https://git.kernel.org/stable/c/fab820f1691a9e26d9031f18aae1e9ce09078f92"},{"url":"https://git.kernel.org/stable/c/f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0"},{"url":"https://git.kernel.org/stable/c/e48e8edbef2eb824201495daa5234560f632b23c"}],"title":"xdp: reject clones that overrun skb_shared_info tailroom","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74616","datePublished":"2026-08-22T15:32:01.313Z","dateReserved":"2026-08-15T05:44:03.920Z","dateUpdated":"2026-08-22T15:32:01.313Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:34","lastModifiedDate":"2026-08-22 16:16:34","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74616","Ordinal":"1","Title":"xdp: reject clones that overrun skb_shared_info tailroom","CVE":"CVE-2026-74616","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74616","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nxdp: reject clones that overrun skb_shared_info tailroom\n\nxdpf_clone() clones broadcast copies into a single page and sets\nframe_sz to PAGE_SIZE. __xdp_build_skb_from_frame() later treats that\npage like a normal XDP frame and expects the usual skb_shared_info\ntailroom at the end of the buffer.\n\nThe current check only rejects frames whose linear xdp_frame header,\nheadroom, and packet data exceed PAGE_SIZE. A source frame backed by a\nlarger allocation can still satisfy that check while extending into the\nclone's required shared-info area. When such a clone is converted back\ninto an skb, build_skb_around() places skb_shared_info over live packet\nbytes and later writes can corrupt XDP return metadata.\n\nReject clones unless their linear area fits inside\nSKB_WITH_OVERHEAD(PAGE_SIZE), matching the tailroom requirement already\nenforced by the XDP-to-skb conversion path.","Type":"Description","Title":"xdp: reject clones that overrun skb_shared_info tailroom"}]}}}