{
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    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.140"
            },
            {
              "fixed": "6.6.142"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
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            }
          ],
          "type": "ECOSYSTEM"
        },
        {
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          "type": "ECOSYSTEM"
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        {
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          "type": "ECOSYSTEM"
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  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64092.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: tp_meter: fix tp_vars reference leak in receiver shutdown\n\nThe receiver shutdown timer handler, batadv_tp_receiver_shutdown(), is\nresponsible for releasing the tp_vars reference it holds. However, the\nexisting logic for coordinating this release with batadv_tp_stop_all() was\nflawed.\n\ntimer_shutdown_sync() guarantees the timer will not fire again after it\nreturns, but it returns non-zero only when the timer was pending at the\ntime of the call. If the timer had already expired (and\nbatadv_tp_stop_all() would unsucessfully try to  rearm itself),\nbatadv_tp_stop_all() skips its batadv_tp_vars_put(), and\nbatadv_tp_receiver_shutdown() fails to put its own reference as well.\n\nFix this by introducing a new atomic variable receiving that is set to 1\nwhen the receiver is initialized and cleared atomically with atomic_xchg()\nby whichever side claims it first. Only the side that observes the\ntransition from 1 to 0 is responsible for releasing the tp_vars timer\nreference, eliminating the uncertainty.",
  "id": "CVE-2026-64092",
  "modified": "2026-08-13T03:52:02.243591140Z",
  "published": "2026-07-19T15:40:00.603Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b1bedf114ea93fef929b31f0d70a9eedcc601de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77098e4bea37af51d3962efa88a5af2ea5e1ac57"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7715c73f33260af724d734c41b794457e9be8dbc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b285bc0a97f43823a4967fb6d286de4c7f53d541"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d078501dde9b57210f1808cdef4b59463d1f5fc8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64092.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64092"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "batman-adv: tp_meter: fix tp_vars reference leak in receiver shutdown"
}