CVE Database›CVE-2024-40948

CVE-2024-40948

kernel: mm/page_table_check: fix crash on ZONE_DEVICE

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 12, 2024

Updated · October 29, 2026

Description

A vulnerability was found in the Linux kernel's mm/page_table_check component, specifically related to ZONE_DEVICE pages. When page-table-check is enabled, attempting to map DAX memory can lead to a kernel crash due to invalid checks on these pages, which do not allocate page_ext.

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

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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-99 · Improper Control of Resource Identifiers ('Resource Injection')