{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "de3c85d321bfb85b7742a6cfab95d680da3e26b1"
            },
            {
              "fixed": "f01cbddfb4273fcc9a786d13b0a2525029023605"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "22cbf4f84c00da64196eb15034feee868e63eef0"
            },
            {
              "fixed": "119ba8070b3f112dd36c897f4f70ea5bb7d370b8"
            },
            {
              "fixed": "7db33b36213a3a1a40940c009ddac30670b55922"
            },
            {
              "fixed": "762850c203fab1190ad6a3de41cd51920b22236d"
            },
            {
              "fixed": "9af12272061d206af8bc3e40215cb694421ab73a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.28"
            },
            {
              "fixed": "6.6.160"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.8.7"
            },
            {
              "fixed": "6.9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "7a54f8314584f78fb0557153b1059924249ef628"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.160"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.114"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.9.0"
            },
            {
              "fixed": "6.18.57"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "7.2.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99014.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Fix command skb lifetime during scan setup\n\nDuring PA sync scan setup, hci_le_set_ext_scan_param_sync() gets the\naddress used for the PA_LINK lookup from hci_sent_cmd_data(). The\nreturned pointer borrows storage from sent_cmd or req_skb, without\nholding a reference to either skb.\n\nThe scan worker runs on req_workqueue while hci_cmd_work() runs on the\nseparate device workqueue. After the scan worker loads sent_cmd, the\ncommand worker can free and replace it before hci_sent_cmd_data()\ndereferences the skb. The command payload can also be freed between\nreturning from the helper and comparing the address. The connection\nlookup's RCU critical section does not protect the command skb.\n\nKASAN reported:\n\n  BUG: KASAN: slab-use-after-free in hci_sent_cmd_data+0x27c/0x2f0\n  Workqueue: hci0 hci_cmd_sync_work\n  Call Trace:\n   hci_sent_cmd_data+0x27c/0x2f0\n   hci_le_set_scan_param_sync+0x43a/0x850\n   hci_passive_scan_sync+0xb09/0x1460\n   hci_update_passive_scan_sync+0x47c/0x6e0\n   hci_le_pa_create_sync+0x200/0xa70\n   hci_cmd_sync_work+0x13c/0x290\n\n  Allocated by task 95:\n   skb_clone+0x13f/0x340\n   hci_cmd_work+0x2a9/0x7e0\n\n  Freed by task 95:\n   kmem_cache_free+0xba/0x3a0\n   hci_cmd_work+0x29c/0x7e0\n\nUse hdev-\u003elock to serialize the address snapshot with sent_cmd\nreplacement. Protect req_skb replacement and completion cleanup with\nthe same lock because the helper falls back to that skb. Copy the\naddress before releasing the lock and use the copy for the existing\nRCU-protected connection lookup. Release the mutex before sending or\nwaiting for commands, preserving the lookup and completion ordering.",
  "id": "CVE-2026-99014",
  "modified": "2026-10-28T02:30:32.634130350Z",
  "published": "2026-10-23T12:20:39.617Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/119ba8070b3f112dd36c897f4f70ea5bb7d370b8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/762850c203fab1190ad6a3de41cd51920b22236d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7db33b36213a3a1a40940c009ddac30670b55922"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9af12272061d206af8bc3e40215cb694421ab73a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f01cbddfb4273fcc9a786d13b0a2525029023605"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99014.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99014"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Bluetooth: hci_sync: Fix command skb lifetime during scan setup"
}