18.11.2022 19:43, Kees Cook пишет:
Ah-ha, understood. Well, if you do want to catch it if there is ever a
typo in the block_desc values (which are not obviously >4096 without
sitting down and calculating them), perhaps add:
if (WARN_ON(block_type >= ARRAY_SIZE(block_desc))
return -ENOSPC;
Probably it would be better to add a single check on the largest slot_size >= PAGE_SIZE at pool creation time.
