CVE-2025-21784: drm/amdgpu: bail out when failed to load fw in psp_init_cap_microcode()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-27 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: bail out when failed to load fw in psp_init_cap_microcode() In function psp_init_cap_microcode(), it should bail out when failed to load firmware, otherwise it may cause invalid memory access.

Affected products

Linux kernel: from 6.3 before 6.6.79; from 6.7 before 6.12.16; from 6.13 before 6.13.4; 6.14-rc1, 6.14-rc2 — fixed in 6.12.16, 6.13.4, 6.6.79

How to fix

Upgrade to a fixed version: Linux kernel 6.12.16, 6.13.4, 6.6.79. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/3f40a7ff39d9f1d283d5aa9b13e2fb16200aff5f
https://git.kernel.org/stable/c/a0a455b4bc7483ad60e8b8a50330c1e05bb7bfcf
https://git.kernel.org/stable/c/d1d10bd595539ed82ab59b60249f9bdf0994f678
https://git.kernel.org/stable/c/e7eb84384335e2abf960c94ec0f8c5b835283777

Get alerted when CVE-2025-21784 or the next vulnerability affects your stack