{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "807f8a8c300435d5483e8d78df9dcdbc27333166"
            },
            {
              "fixed": "3368457b4871ae8f0f88d19c9a3e6270e850ede6"
            },
            {
              "fixed": "308ffdf575560d7e7b8b21f1e3ca6276630f73bf"
            },
            {
              "fixed": "9293574ac208d18c11073538851fb69355beb3b5"
            },
            {
              "fixed": "b119c70b24776c8ab2a2c0515397b3b0ad4e66cd"
            },
            {
              "fixed": "edf0730be33696a1bd142792830d392129e495cc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68414.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: cancel sched scan results work on unregister\n\ncfg80211_sched_scan_results() can queue rdev-\u003esched_scan_res_wk from a\ndriver result notification while a scheduled scan request is present. The\nwork callback recovers the containing cfg80211_registered_device and then\nlocks the wiphy and walks the scheduled-scan request list.\n\nwiphy_unregister() already makes the wiphy unreachable and drains rdev work\nitems before cfg80211_dev_free() can release the object, but it does not\ndrain sched_scan_res_wk. A queued or running result work item can therefore\ncross the unregister/free boundary and access freed rdev state.\n\nThe buggy scenario involves two paths, with each column showing the order\nwithin that path:\n\nscheduled-scan result path:        unregister/free path:\n1. cfg80211_sched_scan_results()   1. interface teardown stops and\n   queues rdev-\u003esched_scan_res_wk.    removes the scheduled scan request.\n2. cfg80211_wq starts the work     2. wiphy_unregister() drains other\n   item and recovers rdev.            rdev work items.\n3. The worker locks rdev-\u003ewiphy    3. cfg80211_dev_free() destroys and\n   and walks rdev state.              frees rdev.\n\nCancel sched_scan_res_wk in wiphy_unregister() alongside the other rdev\nwork items. cancel_work_sync() removes a pending result notification and\nwaits for an already running callback, so cfg80211_dev_free() cannot free\nrdev while this work item is still active.\n\nValidation reproduced this kernel report:\nBUG: KASAN: use-after-free in cfg80211_sched_scan_results_wk+0x4a6/0x530\nWorkqueue: cfg80211 cfg80211_sched_scan_results_wk [cfg80211]\nRead of size 8\nCall trace:\n  dump_stack_lvl+0x66/0xa0\n  print_report+0xce/0x630\n  cfg80211_sched_scan_results_wk+0x4a6/0x530\n  srso_alias_return_thunk+0x5/0xfbef5\n  __virt_addr_valid+0x224/0x430\n  kasan_report+0xac/0xe0\n  lockdep_hardirqs_on_prepare+0xea/0x1a0\n  process_one_work+0x8d0/0x18f0 (kernel/workqueue.c:3212)\n  lock_is_held_type+0x8f/0x100\n  worker_thread+0x5ad/0xfd0\n  __kthread_parkme+0xc6/0x200\n  kthread+0x31e/0x410\n  trace_hardirqs_on+0x1a/0x170\n  ret_from_fork+0x576/0x810\n  __switch_to+0x57e/0xe20\n  __switch_to_asm+0x33/0x70\n  ret_from_fork_asm+0x1a/0x30",
  "id": "CVE-2026-68414",
  "modified": "2026-08-18T03:31:29.121169534Z",
  "published": "2026-08-10T12:04:34.459Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/308ffdf575560d7e7b8b21f1e3ca6276630f73bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3368457b4871ae8f0f88d19c9a3e6270e850ede6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9293574ac208d18c11073538851fb69355beb3b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b119c70b24776c8ab2a2c0515397b3b0ad4e66cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/edf0730be33696a1bd142792830d392129e495cc"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68414.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68414"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "wifi: cfg80211: cancel sched scan results work on unregister"
}