Description
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 there's 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.
Product status
0f9dd46cda36b8de3b9f48bc42bd09d20b9c3b52 (git) before 23e72231f8281505883514b23709076e234d4f27
0f9dd46cda36b8de3b9f48bc42bd09d20b9c3b52 (git) before f775ceb0cb530e4a469b718fb2a24843071087f5
0f9dd46cda36b8de3b9f48bc42bd09d20b9c3b52 (git) before d8ccbd21918fd7fa6ce3226cffc22c444228e8ad
2.6.29
Any version before 2.6.29
6.1.45 (semver)
6.4.10 (semver)
6.5 (original_commit_for_fix)
References
git.kernel.org/...c/23e72231f8281505883514b23709076e234d4f27
git.kernel.org/...c/f775ceb0cb530e4a469b718fb2a24843071087f5
git.kernel.org/...c/d8ccbd21918fd7fa6ce3226cffc22c444228e8ad