CVE-2026-52949

In CVE-2026-52949, the Linux kernel DRM/TTM component ttm_bo_shrink() was fixed to prevent an infinite LRU walk on backup failure. The patch mirrors the prior ttm_bo_swapout() fix: move del_bulk_move from before the backup to after success, and switch to using ttm_resource_del_bulk_move_unevictab...