{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "877afadad2dce8aae1f2aad8ce47e072d4f6165e"
            },
            {
              "fixed": "9cebe4680bb9a72f80c6541eb24af06db7a1fbc9"
            },
            {
              "fixed": "47330cc875b36a1cf7b3543cb2cf90a7c603ce0e"
            },
            {
              "fixed": "60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff"
            },
            {
              "fixed": "525daaea459fc215f432de1b8debbd9144bf97b0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "4bf367fa1fefabdf14938d0ac9ed60020389112e"
            },
            {
              "last_affected": "3b382555706558f5c0587862b6dc03e96a252bba"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.18.18"
            },
            {
              "fixed": "5.19"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.19.2"
            },
            {
              "fixed": "5.20"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63974.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close\n\nSince hci_dev_close_sync() can now be called during the reset path, we\nshould also set HCI_CMD_DRAIN_WORKQUEUE. This avoids queuing timeouts\nwhile the hdev workqueue is being drained.",
  "id": "CVE-2026-63974",
  "modified": "2026-07-22T05:29:58.507373533Z",
  "published": "2026-07-19T14:55:59.994Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47330cc875b36a1cf7b3543cb2cf90a7c603ce0e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/525daaea459fc215f432de1b8debbd9144bf97b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9cebe4680bb9a72f80c6541eb24af06db7a1fbc9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63974.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63974"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close"
}