CVE-2024-42309: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes In psb_intel_lvds_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	3.3 — 4.19.320
linux	linux_kernel	4.20 — 5.4.282
linux	linux_kernel	5.5 — 5.10.224
linux	linux_kernel	5.11 — 5.15.165
linux	linux_kernel	5.16 — 6.1.103
linux	linux_kernel	6.2 — 6.6.44
linux	linux_kernel	6.7 — 6.10.3

References

Advisories & Patches

https://git.kernel.org/stable/c/13b5f3ee94bdbdc4b5f40582aab62977905aedee https://git.kernel.org/stable/c/2df7aac81070987b0f052985856aa325a38debf6 https://git.kernel.org/stable/c/46d2ef272957879cbe30a884574320e7f7d78692 https://git.kernel.org/stable/c/475a5b3b7c8edf6e583a9eb59cf28ea770602e14 https://git.kernel.org/stable/c/6735d02ead7dd3adf74eb8b70aebd09e0ce78ec9 https://git.kernel.org/stable/c/7e52c62ff029f95005915c0a11863b5fb5185c8c https://git.kernel.org/stable/c/d6ad202f73f8edba0cbc0065aa57a79ffe8fdcdc https://git.kernel.org/stable/c/f70ffeca546452d1acd3a70ada56ecb2f3e7f811

Other References

https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-42309? +

In the Linux kernel, the following vulnerability has been resolved: drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes In psb_intel_lvds_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-42309? +

CVE-2024-42309 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-42309? +

CVE-2024-42309 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-42309? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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