{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7ea7b4a142758deaf46c1af0ca9ceca6dd55138b"
            },
            {
              "fixed": "0de12a4c4847f571d82a9cd96bc633eded41d7c6"
            },
            {
              "fixed": "d6ff4764ff784ede25f5c83a6f5883a74c93a5ea"
            },
            {
              "fixed": "1898273c5dc8148267ef9f97cd2517a2822350e7"
            },
            {
              "fixed": "604bd5042fbcd1ab9f7cd98fd847ec017aeede8a"
            },
            {
              "fixed": "7319c0794f91be2734aac695794e7203606b49f8"
            },
            {
              "fixed": "3256c05d5a9db34346eaf20f52dddde984852d77"
            },
            {
              "fixed": "6222b443686525cb5a9b6a9cecf23b2e2ab23e2a"
            },
            {
              "fixed": "7a581d9aaba8c82bd6177fa36b2588eea77f6e2b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.13.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72226.json"
  },
  "details": "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.",
  "id": "CVE-2026-72226",
  "modified": "2026-08-18T03:31:09.611773755Z",
  "published": "2026-08-15T05:54:18.285Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0de12a4c4847f571d82a9cd96bc633eded41d7c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1898273c5dc8148267ef9f97cd2517a2822350e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3256c05d5a9db34346eaf20f52dddde984852d77"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/604bd5042fbcd1ab9f7cd98fd847ec017aeede8a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6222b443686525cb5a9b6a9cecf23b2e2ab23e2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7319c0794f91be2734aac695794e7203606b49f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a581d9aaba8c82bd6177fa36b2588eea77f6e2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6ff4764ff784ede25f5c83a6f5883a74c93a5ea"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72226.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72226"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "batman-adv: tt: prevent TVLV OOB check overflow"
}