Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-08-15T00:00:00 kernel: Input: ims-pcu - fix use-after-free and double-free in disconnect 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-826

In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix use-after-free and double-free in disconnect ims_pcu_disconnect() only intended to perform cleanup when the primary (control) interface is unbound. However, it currently relies on the interface class to distinguish between control and data interfaces. A malicious device could present a data interface with the same class as the control interface, leading to premature cleanup and potential use-after-free or double-free. Switch to verifying that the interface being disconnected is indeed the control interface.

A flaw was found in the Linux kernel's ims-pcu driver. A malicious device can exploit an issue in the `ims_pcu_disconnect()` function, which incorrectly distinguishes between control and data interfaces. By presenting a data interface with the same class as the control interface, a malicious device can trigger premature cleanup. This can lead to use-after-free or double-free vulnerabilities, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-72079 https://nvd.nist.gov/vuln/detail/CVE-2026-72079 https://lore.kernel.org/linux-cve-announce/2026081520-CVE-2026-72079-0a52@gregkh/T