CVE-2024-47704 drm/amd/display: Check link_res->hpo_dp_link_enc before using it

What is CVE-2024-47704?

CVE-2024-47704 is a medium-severity vulnerability in Linux kernel, published on 21 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

drm/amd/display: Check link_res->hpo_dp_link_enc before using it

[WHAT & HOW] Functions dp_enable_link_phy and dp_disable_link_phy can pass link_res without initializing hpo_dp_link_enc and it is necessary to check for null before dereferencing.

This fixes 2 FORWARD_NULL issues reported by Coverity.

Weakness: CWE-476

Which versions are affected by CVE-2024-47704?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-47704?

Apply the vendor's patch.

Is CVE-2024-47704 being exploited?

There is no known exploitation of CVE-2024-47704 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-51105, AZL-51267, BELL-CVE-2024-47704, DEBIAN-CVE-2024-47704, GHSA-q56f-p5h4-mjcf, ROOT-OS-DEBIAN-11-CVE-2024-47704 and 3 more.