{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f89255a02f1d75d8e1b9d1c31435fcb64840cb2a"
            },
            {
              "fixed": "d462ced79dd430200cf888984e8005da77fc810b"
            },
            {
              "fixed": "f79deaaf822ab0ee2424cf28781f9ab91576bea3"
            },
            {
              "fixed": "d3569327fc7395b2b0461a0a0cb77a0bb74786c0"
            },
            {
              "fixed": "97644fdaaf6446ffbe182c5eb804fceb5b1a51b7"
            },
            {
              "fixed": "f04dde74399431fb07abbdd9cd5d0ed624771d04"
            },
            {
              "fixed": "3d4548c96d6f21ac1a9b06c5f82f3ef439c87023"
            },
            {
              "fixed": "86ab6b6fb5b82163bf6c45780bb72150021d7349"
            },
            {
              "fixed": "d11c00b95b2a3b3934007fc003dccc6fdcc061ad"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.4.0"
            },
            {
              "fixed": "5.10.260"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.211"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.177"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.144"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.95"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.38"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63835.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: v: prevent OGM aggregation on disabled hardif\n\nWhen an interface gets disabled, the worker is correctly disabled by\nbatadv_hardif_disable_interface() -\u003e ... -\u003e batadv_v_ogm_iface_disable().\nIn this process, the skb aggr_list is also freed.\n\nBut batadv_v_ogm_send_meshif() can still queue new skbs (via\nbatadv_v_ogm_queue_on_if()) to the aggr_list. This will only stop after all\ncores can no longer find the RCU protected list of hard interfaces. These\nqueued skbs will never be freed or consumed by batadv_v_ogm_aggr_work.\n\nThe batadv_v_ogm_iface_disable() function must block\nbatadv_v_ogm_queue_on_if() to avoid leak of skbs.",
  "id": "CVE-2026-63835",
  "modified": "2026-07-21T03:42:10.190683607Z",
  "published": "2026-07-19T12:02:26.574Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d4548c96d6f21ac1a9b06c5f82f3ef439c87023"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86ab6b6fb5b82163bf6c45780bb72150021d7349"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/97644fdaaf6446ffbe182c5eb804fceb5b1a51b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d11c00b95b2a3b3934007fc003dccc6fdcc061ad"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3569327fc7395b2b0461a0a0cb77a0bb74786c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d462ced79dd430200cf888984e8005da77fc810b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f04dde74399431fb07abbdd9cd5d0ed624771d04"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f79deaaf822ab0ee2424cf28781f9ab91576bea3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63835.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63835"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "batman-adv: v: prevent OGM aggregation on disabled hardif"
}