From: Daniel Xu dxu@dxuuu.xyz
commit 1a49a97df657c63a4e8ffcd1ea9b6ed95581789b upstream.
There's a missing return statement after an error is found in the root_item, this can cause further problems when a crafted image triggers the error.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=210181 Fixes: 259ee7754b67 ("btrfs: tree-checker: Add ROOT_ITEM check") CC: stable@vger.kernel.org # 5.4+ Reviewed-by: Qu Wenruo wqu@suse.com Signed-off-by: Daniel Xu dxu@dxuuu.xyz Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/btrfs/tree-checker.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/btrfs/tree-checker.c +++ b/fs/btrfs/tree-checker.c @@ -1068,6 +1068,7 @@ static int check_root_item(struct extent "invalid root item size, have %u expect %zu or %u", btrfs_item_size_nr(leaf, slot), sizeof(ri), btrfs_legacy_root_item_size()); + return -EUCLEAN; }
/*