CVE-2026-43021

5.5 mediumEPSS 0.1%

Medium (5.5) in linux linux kernel. EPSS 0.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
CWE: CWE-401
Published: 2026-05-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

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

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