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CVE-2024-49911

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add NULL check for function pointer in dcn20_set_output_transfer_func This commit adds a null check for the se…

Published Oct 21, 2024CWE-476EPSS 0.24%

Overview

CVE-2024-49911 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Add NULL check for function pointer in dcn20_set_output_transfer_func

This commit adds a null check for the set_output_gamma function pointer

in the dcn20_set_output_transfer_func function. Previously,

set_output_gamma was being checked for null at line 1030, but then it

was being dereferenced without any null check at line 1048. This could

potentially lead to a null pointer dereference error if set_output_gamma

is null.

To fix this, we now ensure that set_output_gamma is not null before

dereferencing it. We do this by adding a null check for set_output_gamma

before the call to set_output_gamma at line 1048.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/02411e9359297512946705b1cd8cf5e6b0806fa0Refgit.kernel.org/stable/c/62ed6f0f198da04e884062264df308277628004fRefgit.kernel.org/stable/c/827380b114f83c30b3e56d1a675980b6d65f7c88Refgit.kernel.org/stable/c/8c854138b593efbbd8fa46a25f3288c121c1d1a1Refgit.kernel.org/stable/c/e8a24767899c86f4c5f1e4d3b2608942d054900fReflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-49911?

CVE-2024-49911 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-49911?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-49911?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-49911?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-49911 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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