{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "23721387c409087fd3b97e274f34d3ddc0970b74"
            },
            {
              "fixed": "1d4b241482d9025c537afb3c7c8419c72c0e0c82"
            },
            {
              "fixed": "a1a99837bb6169cfb9187abaa2005e8f12079426"
            },
            {
              "fixed": "b88c865dcf6e9f20bfe66a360d4b62941ef769b8"
            },
            {
              "fixed": "368449e467d5f1e2c2e987bf2bd57000ba75e10b"
            },
            {
              "fixed": "6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472"
            },
            {
              "fixed": "00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401"
            },
            {
              "fixed": "0cc9847c64cb6e61118bc78c9187c8209a7197fa"
            },
            {
              "fixed": "4ae1709a314060a196981b344610d023ea841e57"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.5.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.90"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.32"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46212.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: prevent use-after-free when deleting claims\n\nWhen batadv_bla_del_backbone_claims() removes all claims for a backbone, it\ndoes this by dropping the link entry in the hash list. This list entry\nitself was one of the references which need to be dropped at the same time\nvia batadv_claim_put().\n\nBut the batadv_claim_put() must not be done before the last access to the\nclaim object in this function. Otherwise the claim might be freed already\nby the batadv_claim_release() function before the list entry was dropped.",
  "id": "CVE-2026-46212",
  "modified": "2026-07-15T01:49:04.565420849Z",
  "published": "2026-05-28T09:40:29.712Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0cc9847c64cb6e61118bc78c9187c8209a7197fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d4b241482d9025c537afb3c7c8419c72c0e0c82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/368449e467d5f1e2c2e987bf2bd57000ba75e10b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ae1709a314060a196981b344610d023ea841e57"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1a99837bb6169cfb9187abaa2005e8f12079426"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b88c865dcf6e9f20bfe66a360d4b62941ef769b8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46212.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46212"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "batman-adv: bla: prevent use-after-free when deleting claims"
}