{"id":"CVE-2026-53131","revision":"7f8b4dca0f92449abcb1acdb093e7e24","records":[{"revision":"7f8b4dca0f92449abcb1acdb093e7e24","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53131","aliases":[],"title":"netfilter: require Ethernet MAC header before using eth_hdr()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: require Ethernet MAC header before using eth_hdr()\n\n`ip6t_eui64`, `xt_mac`, the `bitmap:ip,mac`, `hash:ip,mac`, and\n`hash:mac` ipset types, and `nf_log_syslog` access `eth_hdr(skb)`\nafter either assuming that the skb is associated with an Ethernet\ndevice or checking only that the `ETH_HLEN` bytes at\n`skb_mac_header(skb)` lie between `skb->head` and `skb->data`.\n\nMake these paths first verify that the skb is associated with an\nEthernet device, that the MAC header was set, and that it spans at\nleast a full Ethernet header before accessing `eth_hdr(skb)`.","state":0,"publishedAt":"2026-06-25T08:38:20.489+00:00","modifiedAt":"2026-10-19T19:57:25.041+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/ipv6/netfilter/ip6t_eui64.c\",\n                        \"net/netfilter/ipset/ip_set_bitmap_ipmac.c\",\n                        \"net/netfilter/ipset/ip_set_hash_ipmac.c\",\n                        \"net/netfilter/ipset/ip_set_hash_mac.c\",\n                        \"net/netfilter/nf_log_syslog.c\",\n                        \"net/netfilter/xt_mac.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"4435888e1bf139d2bfe5911643d4217382136743\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"063f43361e884acd7300790e90194430275d0d0c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"726abf97566867f808fec9d8a408eb9698bd570a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"367abcacc13a8e2e7624408b7f593bd1e60e49d9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"5d634afb8b83b49de562792fd0d047416a43bd4d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"cea435ea7e868ea6fdf039bc4f2090c1d829b556\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\n                            \"lessThan\": \"62443dc21114c0bbc476fa62973db89743f2f137\",\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/ipv6/netfilter/ip6t_eui64.c\",\n                        \"net/netfilter/ipset/ip_set_bitmap_ipmac.c\",\n                        \"net/netfilter/ipset/ip_set_hash_ipmac.c\",\n                        \"net/netfilter/ipset/ip_set_hash_mac.c\",\n                        \"net/netfilter/nf_log_syslog.c\",\n                        \"net/netfilter/xt_mac.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.12\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.210\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.176\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.143\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.94\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.36\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.13\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","score":9.4,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/4435888e1bf139d2bfe5911643d4217382136743","https://git.kernel.org/stable/c/063f43361e884acd7300790e90194430275d0d0c","https://git.kernel.org/stable/c/726abf97566867f808fec9d8a408eb9698bd570a","https://git.kernel.org/stable/c/367abcacc13a8e2e7624408b7f593bd1e60e49d9","https://git.kernel.org/stable/c/5d634afb8b83b49de562792fd0d047416a43bd4d","https://git.kernel.org/stable/c/cea435ea7e868ea6fdf039bc4f2090c1d829b556","https://git.kernel.org/stable/c/62443dc21114c0bbc476fa62973db89743f2f137"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53131","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53131","identifiers":["CVE-2026-53131"]},"retained":false,"historicalAffected":[]}],"coverage":[]}