CVE-2026-43021

MEDIUM

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails When hci_cmd_sync_queue_once() returns with error, the destroy callback will not be called. Fix leaking references / memory on these failures.

CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 5/1/2026Modified: 5/8/2026

Related Intelligence (1)

CRITICALAi

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Rapid7

References (2)

https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608bPatchhttps://git.kernel.org/stable/c/aca377208e7f7322bf4e107cdec6e7d7e8aa7a88Patch