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bcachefs: Fix a null ptr deref in check_xattr()

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We were attempting to initialize inode hash info when no inodes were
found.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet
2023-07-20 19:30:53 -04:00
parent 8e992c6c1f
commit 2a89a3e968
1 changed files with 2 additions and 2 deletions
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4
fs/bcachefs/fsck.c
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@@ -1662,7 +1662,7 @@ static int check_dirent(struct btree_trans *trans, struct btree_iter *iter,
if (ret < 0)
goto err;
if (dir->first_this_inode)
if (dir->first_this_inode && dir->inodes.nr)
*hash_info = bch2_hash_info_init(c, &dir->inodes.data[0].inode);
dir->first_this_inode = false;
@@ -1839,7 +1839,7 @@ static int check_xattr(struct btree_trans *trans, struct btree_iter *iter,
if (ret)
return ret;
if (inode->first_this_inode)
if (inode->first_this_inode && inode->inodes.nr)
*hash_info = bch2_hash_info_init(c, &inode->inodes.data[0].inode);
inode->first_this_inode = false;