UBUNTU-CVE-2021-47142

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix a use-after-free looks like we forget to set ttm-sg to NULL. Hit panic below 1235.844104 general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 1 SMP DEBUGPAGEALLOC NOPTI 1235.989074...