CVE-2022-50393

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/amdgpu: SDMA update use unlocked iterator<br /> <br /> SDMA update page table may be called from unlocked context, this<br /> generate below warning. Use unlocked iterator to handle this case.<br /> <br /> WARNING: CPU: 0 PID: 1475 at<br /> drivers/dma-buf/dma-resv.c:483 dma_resv_iter_next<br /> Call Trace:<br /> dma_resv_iter_first+0x43/0xa0<br /> amdgpu_vm_sdma_update+0x69/0x2d0 [amdgpu]<br /> amdgpu_vm_ptes_update+0x29c/0x870 [amdgpu]<br /> amdgpu_vm_update_range+0x2f6/0x6c0 [amdgpu]<br /> svm_range_unmap_from_gpus+0x115/0x300 [amdgpu]<br /> svm_range_cpu_invalidate_pagetables+0x510/0x5e0 [amdgpu]<br /> __mmu_notifier_invalidate_range_start+0x1d3/0x230<br /> unmap_vmas+0x140/0x150<br /> unmap_region+0xa8/0x110