CVE-2026-43021

Published: May 1, 2026Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

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.

Affected (7)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 6.19 to 6.19.12
Linux Linux Kernel	Version 7.0 rc1
Linux Linux Kernel	Version 7.0 rc2
Linux Linux Kernel	Version 7.0 rc3
Linux Linux Kernel	Version 7.0 rc4
Linux Linux Kernel	Version 7.0 rc5
Linux Linux Kernel	Version 7.0 rc6

Related CWEs

CWE-401

Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

References (2)

https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608b

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/aca377208e7f7322bf4e107cdec6e7d7e8aa7a88

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

Timeline

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