CVE-2026-64464
kernel: xhci: sideband: fix ring sg table pages leak
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 25, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's xHCI (eXtensible Host Controller Interface) sideband functionality. A memory leak occurs in the xhci_ring_to_sgtable() function because a temporary memory array is not properly released after use. This continuous leakage of memory can lead to system instability and a Denial of Service (DoS) over time, impacting the availability of the system.
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-772 · Missing Release of Resource after Effective Lifetime