Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close Since hci_dev_close_sync() can now be called during the reset path, we should also set HCI_CMD_DRAIN_WORKQUEUE. This avoids queuing timeouts while the hdev workqueue is being drained.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/47330cc875b36a1cf7b3543cb2cf90a7c603ce0e
- https://git.kernel.org/stable/c/525daaea459fc215f432de1b8debbd9144bf97b0
- https://git.kernel.org/stable/c/60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff
- https://git.kernel.org/stable/c/9cebe4680bb9a72f80c6541eb24af06db7a1fbc9
FAQ
What is CVE-2026-63974?
CVE-2026-63974 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close Since hci_dev_close_sync() can now be called during the reset...
How severe is CVE-2026-63974?
CVE-2026-63974 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63974?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.