Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-07-25T00:00:00 kernel: Bluetooth: btusb: fix use-after-free on registration failure 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CWE-825

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: fix use-after-free on registration failure Make sure to release the sibling interfaces in case controller registration fails to avoid use-after-free and double-free when they are eventually disconnected. This issue was reported by Sashiko while reviewing a fix for a wakeup source leak in the btusb probe errors paths.

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).

Red Hat Enterprise Linux 10 Affected kernel Red Hat Enterprise Linux 6 Out of support scope kernel Red Hat Enterprise Linux 7 Affected kernel Red Hat Enterprise Linux 7 Affected kernel-rt Red Hat Enterprise Linux 8 Affected kernel Red Hat Enterprise Linux 8 Affected kernel-rt Red Hat Enterprise Linux 9 Affected kernel Red Hat Enterprise Linux 9 Affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-64471 https://nvd.nist.gov/vuln/detail/CVE-2026-64471 https://lore.kernel.org/linux-cve-announce/2026072545-CVE-2026-64471-0da2@gregkh/T