Hi all, During a code audit of the effectiveness of the new online directory repair code, it was discovered that XFS does not check the owner fields of the dir3 free, data, and block format metadata blocks. It was further discovered that when the dir3 free block verifier rejects a block, it does not leave the incore buffer in the correct state. Correct these problems. For v2, we actually stale the buffer so that it won't hang around on the LRU, and fix a UAF bug I introduced into the attr inactivation bailout code. If you're going to start using this mess, you probably ought to just pull from my git trees, which are linked below. This is an extraordinary way to destroy everything. Enjoy! Comments and questions are, as always, welcome. --D kernel git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=verifier-fixes xfsprogs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=verifier-fixes