What happened
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: validate and share PSP fw_pri_buf copies via psp_copy_fw Change psp_copy_fw from void to int: return -ENODEV when drm_dev_enter fails, and -EINVAL when the image size is zero or larger than the 1 MiB PSP private buffer. Replace open-coded memset/memcpy into fw_pri_buf with psp_copy_fw.
Affected versions
Linux: 2b0c3aee2172451e9f982b25f3fdf59a1b687dc3 through before 25bec2425c3d50ba9a92ad87bbf8628be29e5c32 (git); 2b0c3aee2172451e9f982b25f3fdf59a1b687dc3 through before 1aa55af304a2decaacca1d1fabe4257c277ca54a (git); 2b0c3aee2172451e9f982b25f3fdf59a1b687dc3 through before d1f9f5839bd785a3a06335a01d53282e80f8e5fa (git); 4.12 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.