CVE-2025-38319 drm/amd/pp: Fix potential NULL pointer dereference in atomctrl_initialize_mc_reg_table

What is CVE-2025-38319?

CVE-2025-38319 is a medium-severity vulnerability in Debian Debian Linux, published on 10 Jul 2025. 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/pp: Fix potential NULL pointer dereference in atomctrl_initialize_mc_reg_table

The function atomctrl_initialize_mc_reg_table() and atomctrl_initialize_mc_reg_table_v2_2() does not check the return value of smu_atom_get_data_table(). If smu_atom_get_data_table() fails to retrieve vram_info, it returns NULL which is later dereferenced.

Weakness: CWE-476

Which versions are affected by CVE-2025-38319?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2025-38319?

Apply the vendor's patch.

Is CVE-2025-38319 being exploited?

There is no known exploitation of CVE-2025-38319 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

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

Also known as AZL-64926, BELL-CVE-2025-38319, DEBIAN-CVE-2025-38319, GHSA-92v6-pvw9-746w, ROOT-OS-DEBIAN-11-CVE-2025-38319, ROOT-OS-DEBIAN-12-CVE-2025-38319 and 3 more.