CVE-2026-23421
kernel: drm/xe/configfs: Free ctx_restore_mid_bb in release
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 3, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel. This vulnerability is a memory leak within the drm/xe/configfs subsystem, where allocated memory for ctx_restore_mid_bb is not properly released when a configfs device is removed. A local attacker could exploit this by repeatedly creating and removing configfs devices, leading to a gradual depletion of system memory. This could result in system instability or a denial of service (DoS) condition.
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