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CVE-2024-57798

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req() While receiving an MST up request message from on…

Published Jan 11, 2025CWE-416EPSS 0.22%

Overview

CVE-2024-57798 is a high-severity vulnerability. It was published on January 11, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()

While receiving an MST up request message from one thread in

drm_dp_mst_handle_up_req(), the MST topology could be removed from

another thread via drm_dp_mst_topology_mgr_set_mst(false), freeing

mst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.

This could lead to a NULL deref/use-after-free of mst_primary in

drm_dp_mst_handle_up_req().

Avoid the above by holding a reference for mst_primary in

drm_dp_mst_handle_up_req() while it's used.

v2: Fix kfreeing the request if getting an mst_primary reference fails.

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/9735d40f5fde9970aa46e828ecc85c32571d58a2Refgit.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8Refgit.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8Refgit.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0Reflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-57798?

CVE-2024-57798 is a high-severity vulnerability. It was published on January 11, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-57798?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-57798?

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-2024-57798?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-57798 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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