CVE-2026-98758
kernel: usb: typec: ucsi: glink: fix use-after-free of ucsi on remove
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 23, 2026
Description
A flaw was found in the Linux kernel's USB Type-C Connector System Software Interface (UCSI) GLINK driver. A local attacker with administrative privileges could trigger this flaw during device removal, leading to a Denial of Service (DoS) or potentially arbitrary code execution. The issue occurs because background callback tasks can continue to queue and run after the driver has unregistered its resources, causing the system to access memory that has already been freed.
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 · 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference