CVE-2026-43432
kernel: usb: xhci: Fix memory leak in xhci_disable_slot()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 8, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's USB xHCI host controller driver. The error handling path in the xhci_disable_slot() function incorrectly frees only a portion of the allocated memory, leading to a memory leak of the completion structure. This issue, which can be triggered under specific hardware conditions or abnormal states, may lead to resource exhaustion and potentially 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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-763 · Release of Invalid Pointer or Reference