PT-2024-29165 · Linux+6 · Linux Kernel+6

Peter Xu · Published 2024-06-05 · Updated 2025-09-29 · CVE-2024-40948

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the Linux kernel's page table check functionality, specifically with ZONE DEVICE pages that map PFNs directly and do not allocate page ext. When both ZONE DEVICE and page-table-check are enabled, and an attempt is made to map dax memories, a kernel bug can be triggered, causing a crash. This is because the pgtable checker does not account for the absence of page ext in ZONE DEVICE pages, leading to an error when trying to inject pfn maps on the dax device.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2025-03403

CVE-2024-40948

DLA-4008-1

DSA-5731-1

INFSA-2024_9315

OESA-2024-2076

RHSA-2024:9315

RHSA-2024_9315

SUSE-SU-2024:2802-1

SUSE-SU-2024:2896-1

SUSE-SU-2024:2973-1

SUSE-SU-2025:20008-1

SUSE-SU-2025:20028-1

USN-6999-1

USN-6999-2

USN-7004-1

USN-7005-1

USN-7005-2

USN-7008-1

USN-7029-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Red Hat

Red Os

Suse

Ubuntu

References · 2312

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40948.json · Exploit
• https://ubuntu.com/security/CVE-2024-40957 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-40984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-41002 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-39504 · Security Note
• https://ubuntu.com/security/CVE-2024-38780 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-40921 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-41087 · Security Note
• https://osv.dev/vulnerability/USN-7029-1 · Vendor Advisory
• https://git.kernel.org/stable/c/51897f99351fff7b57f4f141940fa93b4e90fd2b · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-41054 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-38611 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-36933 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-33847 · Security Note
• https://ubuntu.com/security/CVE-2024-38634 · Vendor Advisory