CVE-2025-40318 - CVE House
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Status published Unknown CVE-2025-40318

Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once hci_cmd_sync_dequeue_once() does lookup and then cancel the entry under two separate lock sections. Meanwhile, hci_cmd_sync_work() can also delete the same entry, leading to double list_del() and "UAF". Fix this by holding cmd_sync_work_lock across both lookup and cancel, so that the entry cannot be removed concurrently.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
f00f36db76eb8fd10d13e80e2590f23b5beaa54d, 1499f79995c7ee58e3bfeeff75f6d1b37dcda881, 505ea2b295929e7be2b4e1bc86ee31cb7862fb01, 357603f4d396d85fbf0045512efaf1d7f7394ed7, 6.1.120, 6.6.51, 6.8.9, 6.9, 0, 6.1.159, 6.6.117, 6.12.58, 6.17.8, 6.18

Timeline

Official Publish: December 8th, 2025
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.