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CVE-2026-64471

kernel: Bluetooth: btusb: fix use-after-free on registration failure

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · July 25, 2026

Updated · July 30, 2026

Description

A flaw was found in the Linux kernel's Bluetooth subsystem (btusb). When a Bluetooth controller fails to register, the system may not properly release associated interfaces. This can lead to a use-after-free or double-free memory error when these interfaces are later disconnected, potentially causing system instability or a denial of service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-825 · Expired Pointer Dereference