{"id":"CVE-2026-97417","revision":"eee970a782ef4a9f8c9e8632d86665d6","records":[{"revision":"eee970a782ef4a9f8c9e8632d86665d6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97417","aliases":[],"title":"netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack()\n\nThe timestamp-only fast path dereferences the option stream as\n*(__be32 *)ptr, which assumes 4-byte alignment that the TCP option\nstream does not guarantee. Use get_unaligned_be32() instead, which\nreads the value safely and already returns host byte order, so the\nhtonl() on the comparison constant can be dropped.\n\nThis matches the existing get_unaligned_be32() use later in the same\nfunction.","state":0,"publishedAt":"2026-09-24T16:03:27.069+00:00","modifiedAt":"2026-10-03T10:58:08.961+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/netfilter/nf_conntrack_proto_tcp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9\",\n                            \"lessThan\": \"740ad3d17a281f7764dda4dbeb37cea52e2e31ae\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9\",\n                            \"lessThan\": \"a0523267de2523522b0f70972dd1ffa22ec6176c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9\",\n                            \"lessThan\": \"55bcc3376cd7b18954cc9814da697504fdaf12bf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9\",\n                            \"lessThan\": \"0d5ad732e4fdc569eb85861115e8f7b4c2c67852\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9\",\n                            \"lessThan\": \"7ecfa46a536578a7ed335ddf31a854127268c27c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9\",\n                            \"lessThan\": \"4abc1af7ac209c066f4e5dd75cdd56876e5829a9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9\",\n                            \"lessThan\": \"d3bf9eae486490832bd08fd62ab0ac601f346bd4\",\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/netfilter/nf_conntrack_proto_tcp.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\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:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/740ad3d17a281f7764dda4dbeb37cea52e2e31ae","https://git.kernel.org/stable/c/a0523267de2523522b0f70972dd1ffa22ec6176c","https://git.kernel.org/stable/c/55bcc3376cd7b18954cc9814da697504fdaf12bf","https://git.kernel.org/stable/c/0d5ad732e4fdc569eb85861115e8f7b4c2c67852","https://git.kernel.org/stable/c/7ecfa46a536578a7ed335ddf31a854127268c27c","https://git.kernel.org/stable/c/4abc1af7ac209c066f4e5dd75cdd56876e5829a9","https://git.kernel.org/stable/c/d3bf9eae486490832bd08fd62ab0ac601f346bd4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97417","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97417","identifiers":["CVE-2026-97417"]},"retained":false,"historicalAffected":[]}],"coverage":[]}