ext4: fix use-after-iput when fscrypt contexts are inconsistent
In the case where the child's encryption context was inconsistent with its parent directory, we were using inode->i_sb and inode->i_ino after the inode had already been iput(). Fix this by doing the iput() in the correct places. Note: only ext4 had this bug, not f2fs and ubifs. Fixes: d9cdc903 ("ext4 crypto: enforce context consistency") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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