CVE-2024-56777: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure.

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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-754 CWE-754

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.6 — 5.15.174
linux	linux_kernel	5.16 — 6.1.120
linux	linux_kernel	6.2 — 6.6.64
linux	linux_kernel	6.7 — 6.12.4

References

Advisories & Patches

https://git.kernel.org/stable/c/3cf2e7c448e246f7e700c7aa47450d1e27579559 https://git.kernel.org/stable/c/997b64c3f4c1827c5cfda8ae7f5d13f78d28b541 https://git.kernel.org/stable/c/b79612ed6bc1a184c45427105c851b5b2d4342ca https://git.kernel.org/stable/c/e965e771b069421c233d674c3c8cd8c7f7245f42 https://git.kernel.org/stable/c/f5804567cf9605d6e5ec46c0bb786f7d50f18c13

Other References

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

Frequently Asked Questions

What is CVE-2024-56777? +

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56777? +

CVE-2024-56777 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-2024-56777? +

CVE-2024-56777 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-2024-56777? +

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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