Btrfs: add checks to verify dir items are correct
We need to make sure the dir items we get are valid dir items. So any time we
try and read one check it with verify_dir_item, which will do various sanity
checks to make sure it looks sane. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 888dbdb..e010000 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4272,6 +4272,9 @@
while (di_cur < di_total) {
struct btrfs_key location;
+ if (verify_dir_item(root, leaf, di))
+ break;
+
name_len = btrfs_dir_name_len(leaf, di);
if (name_len <= sizeof(tmp_name)) {
name_ptr = tmp_name;
