{"id":"CVE-2026-72296","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ife: require ETH_HLEN to be pullable in ife_decode()\n\nife decode may return after making only the outer IFE header and\nmetadata pullable","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ife: require ETH_HLEN to be pullable in ife_decode()\n\nife decode may return after making only the outer IFE header and\nmetadata pullable. The caller then passes th…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-125"],"vendor":"Red Hat","product":"Linux","affected":["Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < 70013f9163bef7fbd9fa62f81cf91b2a7ba66163","Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < be272e159dfe1207b67332ad6e17adcf59b4ea4b","Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < 8c8818e52fddb247ff3214622401a4de6ff8482e","Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < 9433578bff9c100c466a6354574892e55293cb8f","Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < 1cb42ec10294a55380e52e674b3df2b962648242","Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < 5526d1997aea6c9bd865ca4d4894b52e799d735c","Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < b69ad768cd4a2ef4e07c18492ae85438ed17c7cb","Linux >= ef6980b6becb1afd9d82a4f043749a10ae81bf14 < 9406f6012b7343661efb516a11c62d4db2b62f75","Linux 4.6"],"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:17:19.437","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72296","references":[{"url":"https://git.kernel.org/stable/c/1cb42ec10294a55380e52e674b3df2b962648242","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5526d1997aea6c9bd865ca4d4894b52e799d735c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/70013f9163bef7fbd9fa62f81cf91b2a7ba66163","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8c8818e52fddb247ff3214622401a4de6ff8482e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9406f6012b7343661efb516a11c62d4db2b62f75","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9433578bff9c100c466a6354574892e55293cb8f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b69ad768cd4a2ef4e07c18492ae85438ed17c7cb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/be272e159dfe1207b67332ad6e17adcf59b4ea4b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72296.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-72296"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516243"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72296"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72296"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081501-CVE-2026-72296-be28@gregkh/T"}],"tags":["nvd","csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00735,"epssPercentile":0.54231,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T18:45:54.972693Z"},"scores":{"nvd":9.1,"vendor":5.5,"cna":9.1},"ingestedAt":"2026-10-16T19:46:24.412Z","slug":"CVE-2026-72296","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: ife: require ETH_HLEN to be pullable in ife_decode()\n\nife decode may return after making only the outer IFE header and\nmetadata pullable. The caller then passes the decapsulated packet to\neth_type_trans(), which expects the inner Ethernet header to be\naccessible from the linear data area.\n\nWith a malformed IFE frame, the inner Ethernet header may still be\nshorter than ETH_HLEN in the linear area, which can lead to a crash in\nthe original code.\n\nFix this by extending the pull check in ife_decode() so that the inner\nEthernet header is also guaranteed to be pullable before returning.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72296.json)","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":230282,"id":"CVE-2026-72296","ts":1793130914690,"field":"cvss","old":"5.5","new":"9.1"},{"seq":230281,"id":"CVE-2026-72296","ts":1793130914690,"field":"severity","old":"medium","new":"critical"},{"seq":223643,"id":"CVE-2026-72296","ts":1792238344954,"field":"cvss","old":"9.1","new":"5.5"},{"seq":223642,"id":"CVE-2026-72296","ts":1792238344954,"field":"severity","old":"critical","new":"medium"}]}