CVE-2026-53278

kernel: arm_mpam: Check whether the config array is allocated before destroying it

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · June 26, 2026

Updated · October 29, 2026

Description

A flaw was found in the Linux kernel's arm_mpam component. This vulnerability occurs when the __destroy_component_cfg() function is called from mpam_disable() before the configuration array has been properly allocated. This can lead to a null pointer dereference, potentially causing a system crash and resulting in a Denial of Service (DoS).

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-909 · Missing Initialization of Resource