CVE-2022-50354

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amdkfd: Fix kfd_process_device_init_vm error handling<br /> <br /> Should only destroy the ib_mem and let process cleanup worker to free<br /> the outstanding BOs. Reset the pointer in pdd-&gt;qpd structure, to avoid<br /> NULL pointer access in process destroy worker.<br /> <br /> BUG: kernel NULL pointer dereference, address: 0000000000000010<br /> Call Trace:<br /> amdgpu_amdkfd_gpuvm_unmap_gtt_bo_from_kernel+0x46/0xb0 [amdgpu]<br /> kfd_process_device_destroy_cwsr_dgpu+0x40/0x70 [amdgpu]<br /> kfd_process_destroy_pdds+0x71/0x190 [amdgpu]<br /> kfd_process_wq_release+0x2a2/0x3b0 [amdgpu]<br /> process_one_work+0x2a1/0x600<br /> worker_thread+0x39/0x3d0