CVE-2022-50393

CVE-2022-50393 affects the Linux kernel in the AMDGPU SDMA update path. The root cause is SDMA updating page tables from an unlocked context, triggering a warning in dma_resv_iter_next and related functions (amdgpu_vm_sdma_update, amdgpu_vm_ptes_update, etc.). The issue is mitigated by using an u...