PT-2024-29157 · Linux+6 · Linux Kernel+6

Published 2024-06-04 · Updated 2025-09-29 · CVE-2024-40940

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description The issue is related to the deletion of tainted pointers in the Linux kernel, specifically in the mlx5 lag create port sel table() function when flow rule creation fails. Instead of deleting previously created rules, the tainted pointer is deleted multiple times. This bug is fixed by using correct flow rules pointers. The issue was found by the Linux Verification Center (linuxtesting.org) with SVACE.

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

Exploit

RCE

Double Free

Weakness Enumeration

CWE-20

CWE-415

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2025-03401

CVE-2024-40940

DLA-4008-1

DSA-5731-1

INFSA-2024_9315

OESA-2024-2076

OPENSUSE-SU-2024_2947-1

RHSA-2024:9315

RHSA-2024_9315

SUSE-SU-2024:2802-1

SUSE-SU-2024:2894-1

SUSE-SU-2024:2896-1

SUSE-SU-2024:2939-1

SUSE-SU-2024:2947-1

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 · 2975

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40940.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://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
• https://nvd.nist.gov/vuln/detail/CVE-2024-43863 · Security Note