{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a87f736d942c86255e3088c606f0e3eab6bbf784"
            },
            {
              "fixed": "7bb2a5bd4f07192fca35644fab7d49a17bfbc861"
            },
            {
              "fixed": "481f9230284c27052b59c587069f232c5d84779e"
            },
            {
              "fixed": "09b7d5e4f88504e62ddf4ff31ebeebb3b87578ba"
            },
            {
              "fixed": "e588e83e5c7a0f6d7a77dbbb58927c8c8cfd598e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.36"
            },
            {
              "fixed": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.56"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98707.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: shut down RX BA session timer on teardown\n\nTearing down an RX BA session can leave the session timer queued on a\nfreed tid_rx. Later timer-wheel processing and the timer callback itself\nthen run against freed memory.\n\nAn RX BAR handler can dereference tid_rx under RCU before teardown\nunpublishes it and stay in its read-side critical section while teardown\ndeletes the session timer. The stale handler can then rearm the timer\nafter timer_delete_sync() returns and before the RCU callback frees\ntid_rx.\n\nUse timer_shutdown_sync() so rearm attempts become ineffective once\nteardown starts. Keep reorder_timer unchanged: teardown marks the session\nremoved under reorder_lock and its release path checks that state before\nrearming. session_timer has no equivalent guard because\nieee80211_rx_h_ctrl() rearms it before taking reorder_lock.",
  "id": "CVE-2026-98707",
  "modified": "2026-10-20T02:30:15.680714166Z",
  "published": "2026-10-18T15:46:37.587Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09b7d5e4f88504e62ddf4ff31ebeebb3b87578ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/481f9230284c27052b59c587069f232c5d84779e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7bb2a5bd4f07192fca35644fab7d49a17bfbc861"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e588e83e5c7a0f6d7a77dbbb58927c8c8cfd598e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98707.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98707"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: mac80211: shut down RX BA session timer on teardown"
}