CVE-2025-21990 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/amdgpu: NULL-check BO’s backing store when determining GFX12 PTE flags

PRT BOs may not have any backing store so bo->tbo.resource will be NULL. Check for that before dereferencing.

(cherry picked from commit 3e3fcd29b505cebed659311337ea03b7698767fc)

Reference

https://git.kernel.org/stable/c/6cc30748e17ea2a64051ceaf83a8372484e597f1 https://git.kernel.org/stable/c/72235808eabea93055b459a63443bd9cd6b08aa4 https://git.kernel.org/stable/c/af23e39b9e9280b1f6299b6f2fa090a1694240ad