{"id":"CVE-2026-72226","revision":"6d8df66e47774030a2750f9d1085b229","records":[{"revision":"6d8df66e47774030a2750f9d1085b229","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72226","aliases":[],"title":"batman-adv: tt: prevent TVLV OOB check overflow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: tt: prevent TVLV OOB check overflow\n\nA TT unicast TVLV contains the number of VLANs stored in it. This number is\nan u16 and gets multiplied by the size of the struct\nbatadv_tvlv_tt_vlan_data (8 bytes). The size can therefore overflow the u16\nused to store the tt_vlan_len. All additional safety checks to prevent\nout-of-bounds access of the TVLV buffer are invalid due to this overflow.\n\nUsing size_t prevents this overflow and ensures that the safety checks\ncompare against the actual buffer requirements.","state":0,"publishedAt":"2026-08-15T05:54:18.285+00:00","modifiedAt":"2026-10-16T18:45:02.826+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/translation-table.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"0de12a4c4847f571d82a9cd96bc633eded41d7c6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"d6ff4764ff784ede25f5c83a6f5883a74c93a5ea\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"1898273c5dc8148267ef9f97cd2517a2822350e7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"604bd5042fbcd1ab9f7cd98fd847ec017aeede8a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"7319c0794f91be2734aac695794e7203606b49f8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"3256c05d5a9db34346eaf20f52dddde984852d77\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"6222b443686525cb5a9b6a9cecf23b2e2ab23e2a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7ea7b4a142758deaf46c1af0ca9ceca6dd55138b\",\n                            \"lessThan\": \"7a581d9aaba8c82bd6177fa36b2588eea77f6e2b\",\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/translation-table.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.261\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.212\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\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:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/0de12a4c4847f571d82a9cd96bc633eded41d7c6","https://git.kernel.org/stable/c/d6ff4764ff784ede25f5c83a6f5883a74c93a5ea","https://git.kernel.org/stable/c/1898273c5dc8148267ef9f97cd2517a2822350e7","https://git.kernel.org/stable/c/604bd5042fbcd1ab9f7cd98fd847ec017aeede8a","https://git.kernel.org/stable/c/7319c0794f91be2734aac695794e7203606b49f8","https://git.kernel.org/stable/c/3256c05d5a9db34346eaf20f52dddde984852d77","https://git.kernel.org/stable/c/6222b443686525cb5a9b6a9cecf23b2e2ab23e2a","https://git.kernel.org/stable/c/7a581d9aaba8c82bd6177fa36b2588eea77f6e2b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72226","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72226","identifiers":["CVE-2026-72226"]},"retained":false,"historicalAffected":[]}],"coverage":[]}