CVE-2024-56369: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: drm/modes: Avoid divide by zero harder in drm_mode_vrefresh() drm_mode_vrefresh() is trying to avoid divide by zero by checking whether htotal or vtotal are zero. But we may still end up with a div-by-zero of vtotal*htotal*...

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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-369 CWE-369

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 5.15.176
linux	linux_kernel	5.16 — 6.1.122
linux	linux_kernel	6.2 — 6.6.68
linux	linux_kernel	6.7 — 6.12.7
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/47c8b6cf1d08f0ad40d7ea7b025442e51b35ee1f https://git.kernel.org/stable/c/69fbb01e891701e6d04db1ddb5ad49e42c4dd963 https://git.kernel.org/stable/c/9398332f23fab10c5ec57c168b44e72997d6318e https://git.kernel.org/stable/c/b39de5a71bac5641d0fda33d1cf5682d82cf1ae5 https://git.kernel.org/stable/c/e7c7b48a0fc5ed83baae400a1b15e33978c25d7f

Other References

https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Frequently Asked Questions

What is CVE-2024-56369? +

In the Linux kernel, the following vulnerability has been resolved: drm/modes: Avoid divide by zero harder in drm_mode_vrefresh() drm_mode_vrefresh() is trying to avoid divide by zero by checking whether htotal or vtotal are zero. But we may still end up with a div-by-zero of vtotal*htotal*... It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56369? +

CVE-2024-56369 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-2024-56369? +

CVE-2024-56369 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-2024-56369? +

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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