CVE-2026-98945
kernel: kernel: Denial of service via use-after-free in Steam HID driver teardown
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 30, 2026
Description
A flaw was found in the Linux kernel's Steam Human Interface Device (HID) driver. A timing issue during the device teardown sequence allows scheduled background tasks to access memory after it has been freed. A local attacker could exploit this use-after-free condition to cause a system crash, leading to a Denial of Service (DoS), or potentially escalate privileges.
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 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference