{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "23721387c409087fd3b97e274f34d3ddc0970b74"
            },
            {
              "fixed": "a9f58d5e3261f3deeae69ec1e237f38ef3ff5cbe"
            },
            {
              "fixed": "6725c523a35eeca611ff37e7d4a8712fae92aefd"
            },
            {
              "fixed": "afb5436f6028fd68f408f189230fbaa19c910d72"
            },
            {
              "fixed": "7b8fbcee3184d848b5aee085ca16d0cf05c9b641"
            },
            {
              "fixed": "7b7ebb7222a5524ce58e48cc9c6d688320ea6cfe"
            },
            {
              "fixed": "b65365d2b1e6095c538d49baeb140dd1c166c1b3"
            },
            {
              "fixed": "ab3dbd07a809a8eb30c7ddfab9ac886ed30dce8d"
            },
            {
              "fixed": "cf6b604011591865ae39ac82de8978c1120d17af"
            }
          ],
          "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-2026-46233.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: only purge non-released claims\n\nWhen batadv_bla_purge_claims() goes through the list of claims, it is only\ntraversing the hash list with an rcu_read_lock(). Due to a potential\nparallel batadv_claim_put(), it can happen that it encounters a claim which\nwas actually in the process of being released+freed by\nbatadv_claim_release(). In this case, backbone_gw is set to NULL before the\ndelayed RCU kfree is started. Calling batadv_bla_claim_get_backbone_gw() is\nthen no longer allowed because it would cause a NULL-ptr derefence.\n\nTo avoid this, only claims with a valid reference counter must be purged.\nAll others are already taken care of.",
  "id": "CVE-2026-46233",
  "modified": "2026-07-15T01:49:17.000692706Z",
  "published": "2026-05-28T09:40:55.019Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6725c523a35eeca611ff37e7d4a8712fae92aefd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b7ebb7222a5524ce58e48cc9c6d688320ea6cfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b8fbcee3184d848b5aee085ca16d0cf05c9b641"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9f58d5e3261f3deeae69ec1e237f38ef3ff5cbe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab3dbd07a809a8eb30c7ddfab9ac886ed30dce8d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/afb5436f6028fd68f408f189230fbaa19c910d72"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b65365d2b1e6095c538d49baeb140dd1c166c1b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf6b604011591865ae39ac82de8978c1120d17af"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46233.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46233"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "batman-adv: bla: only purge non-released claims"
}