The Linux kernel vulnerability involves the drm/ttm component where the ttm_bo_shrink() function could enter an infinite LRU walk if a backup operation failed. The fix applies the same logic as a previous patch for ttm_bo_swapout(), moving the del_bulk_move operation to after a successful backup and using ttm_resource_del_bulk_move_unevictable() to handle the resource state correctly. This prevents the infinite loop condition during resource management in the graphics memory subsystem.

The vulnerability does not affect confidentiality or integrity but results in a denial of service condition due to an infinite loop causing high resource consumption and potential system instability or hang. It requires local privileges with low complexity and no user interaction.

A fix is available in Linux kernel versions 7.0.0-28.28.1 and later. Users should upgrade to these or later kernel versions to remediate the issue. Since this is not a cloud service, manual patching is required. No known exploits are reported in the wild.