Andreas Gruenbacher 7c414f6f06 gfs2: Always check inode size of inline inodes
commit 70376c7ff31221f1d21db5611d8209e677781d3a upstream.

Check if the inode size of stuffed (inline) inodes is within the allowed
range when reading inodes from disk (gfs2_dinode_in()).  This prevents
us from on-disk corruption.

The two checks in stuffed_readpage() and gfs2_unstuffer_page() that just
truncate inline data to the maximum allowed size don't actually make
sense, and they can be removed now as well.

Reported-by: syzbot+7bb81dfa9cda07d9cd9d@syzkaller.appspotmail.com
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
[pchelkin@ispras.ru: adjust the inode variable inside gfs2_dinode_in with
the format used before upstream commit 7db354444ad8 ("gfs2: Cosmetic
gfs2_dinode_{in,out} cleanup")]
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-05 11:23:52 +02:00
..
2020-10-16 11:11:22 -07:00
2021-09-18 13:40:15 +02:00
2023-02-22 12:55:54 +01:00
2022-06-09 10:21:16 +02:00
2023-01-04 11:39:23 +01:00
2023-01-14 10:16:27 +01:00