UPSTREAM: f2fs: avoid trying to get invalid block address

In f2fs_new_inode(), if we fail to get a new inode, we go iput(), followed by
f2fs_evict_inode(). If the inode is not marked as bad, it'll try to call
f2fs_remove_inode_page() which tries to read the inode block given node id.
But, there's no block address allocated yet, which gives a chance to access
a wrong block address, if the block device has some garbage data in NAT table.

We need to make sure NAT table should have zero data for all the unallocated
node ids, but also would be better to take this unnecessary path as well.
Let's mark the faild inode as bad.

Bug: 383968963
Fixes: 0abd675e97 ("f2fs: support plain user/group quota")
Reviewed-by: Chao Yu <chao@kernel.org>
Change-Id: I37bfd94f0612e1521ae43fe529fd186954f3dece
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit e02938613eb206ebf788e2d3d4fccf534e4ea12e)
(cherry picked from commit 444939d3b27bb3857a7cc3e37595e794eef07db4)

fs/f2fs/namei.c

@@ -325,6 +325,7 @@ fail_drop:
 	trace_f2fs_new_inode(inode, err);
 	dquot_drop(inode);
 	inode->i_flags |= S_NOQUOTA;
+	make_bad_inode(inode);
 	if (nid_free)
 		set_inode_flag(inode, FI_FREE_NID);
 	clear_nlink(inode);