CVE-2026-43021

EUVD-2026-26620
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.19 ≤
𝑥
< 6.19.12
linuxlinux_kernel
7.0:rc1
linuxlinux_kernel
7.0:rc2
linuxlinux_kernel
7.0:rc3
linuxlinux_kernel
7.0:rc4
linuxlinux_kernel
7.0:rc5
linuxlinux_kernel
7.0:rc6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.170-3
fixed
bookworm (security)
6.1.174-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.257-1
fixed
forky
7.0.10-1
fixed
sid
7.0.12-2
fixed
trixie
6.12.86-1
fixed
trixie (security)
6.12.90-2
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608b
https://git.kernel.org/stable/c/aca377208e7f7322bf4e107cdec6e7d7e8aa7a88