2025-12-30 12:08:55
Linux
PUBLISHED
In the Linux kernel, the following vulnerability has been resolved: btrfs: remove BUG_ON()s in add_new_free_space() At add_new_free_space() we have these BUG_ON()s that are there to deal with any failure to add free space to the in memory free space cache. Such failures are mostly -ENOMEM that should be very rare. However theres no need to have these BUG_ON()s, we can just return any error to the caller and all callers and their upper call chain are already dealing with errors. So just make add_new_free_space() return any errors, while removing the BUG_ON()s, and returning the total amount of added free space to an optional u64 pointer argument.