CVE-2023-53352: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: check null pointer before accessing when swapping Add a check to avoid null pointer dereference as below: 90.002283 general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 1 PREEMPT SMP KASA...