CVE Database›Document archive›CVE-2026-23421

CVE-2026-23421

kernel: drm/xe/configfs: Free ctx_restore_mid_bb in release

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Severity

Low

Red Hat Product Security

5.5

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 · 5.5
CVSS: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