CVE-2023-54185

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> btrfs: remove BUG_ON()&amp;#39;s in add_new_free_space()<br /> <br /> At add_new_free_space() we have these BUG_ON()&amp;#39;s that are there to deal<br /> with any failure to add free space to the in memory free space cache.<br /> Such failures are mostly -ENOMEM that should be very rare. However there&amp;#39;s<br /> no need to have these BUG_ON()&amp;#39;s, we can just return any error to the<br /> caller and all callers and their upper call chain are already dealing with<br /> errors.<br /> <br /> So just make add_new_free_space() return any errors, while removing the<br /> BUG_ON()&amp;#39;s, and returning the total amount of added free space to an<br /> optional u64 pointer argument.