CVE-2026-43021

MEDIUM EPSS 1.4%
Published May 1, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 1, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aca377208e7f7322bf4e107cdec6e7d7e8aa7a88
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aca377208e7f7322bf4e107cdec6e7d7e8aa7a88
    Patch