{"id":"CVE-2026-89949","revision":"622b9abe052e4b798cc6c6322b8be722","records":[{"revision":"622b9abe052e4b798cc6c6322b8be722","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89949","aliases":[],"title":"batman-adv: dat: avoid unaligned fault in IP extraction","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: avoid unaligned fault in IP extraction\n\nIndependent of the alignment of the ARP packet in the SKB, either the\nbatadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access\n(on HW without native unaligned read support).\n\nUse get_unaligned() to handle this properly on all architectures.","state":0,"publishedAt":"2026-09-16T10:32:34.794+00:00","modifiedAt":"2026-10-19T08:55:23.408+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/batman-adv/distributed-arp-table.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"15dbfb37f0e1a085d48deeb8f5238e9d28127dde\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"a170d4617e8cca05a1314de61728a262ef272782\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"c74a4acf41d19f21199dec2d6c813c90d31cd02c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"91c99b4e152023c7d458a5dedd52d2b0d7df4ce3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"1cfa7d5f70d54cb8c7e82df739430782d1996ee1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"0c2df865338bbf92aa45b9253e5f9b8ef2d9992f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5c3a0e5535933349a5d6e6bc8b704e0611f21d3f\",\n                            \"lessThan\": \"0121afa52cdb88cfb4d5d7bd126a23a9100121d8\",\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/batman-adv/distributed-arp-table.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20","https://git.kernel.org/stable/c/15dbfb37f0e1a085d48deeb8f5238e9d28127dde","https://git.kernel.org/stable/c/a170d4617e8cca05a1314de61728a262ef272782","https://git.kernel.org/stable/c/c74a4acf41d19f21199dec2d6c813c90d31cd02c","https://git.kernel.org/stable/c/91c99b4e152023c7d458a5dedd52d2b0d7df4ce3","https://git.kernel.org/stable/c/1cfa7d5f70d54cb8c7e82df739430782d1996ee1","https://git.kernel.org/stable/c/0c2df865338bbf92aa45b9253e5f9b8ef2d9992f","https://git.kernel.org/stable/c/0121afa52cdb88cfb4d5d7bd126a23a9100121d8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89949","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89949","identifiers":["CVE-2026-89949"]},"retained":false,"historicalAffected":[]}],"coverage":[]}