linux-sg2042/fs/overlayfs
Miklos Szeredi 8c25741aaa ovl: fix oopses in ovl_fill_super() failure paths
ovl_free_fs() dereferences ofs->workbasedir and ofs->upper_mnt in cases when
those might not have been initialized yet.

Fix the initialization order for these fields.

Reported-by: syzbot+c75f181dc8429d2eb887@syzkaller.appspotmail.com
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc:  <stable@vger.kernel.org> # v4.15
Fixes: 95e6d4177c ("ovl: grab reference to workbasedir early")
Fixes: a9075cdb46 ("ovl: factor out ovl_free_fs() helper")
2018-09-10 12:55:49 +02:00
..
Kconfig ovl: Provide a mount option metacopy=on/off for metadata copyup 2018-07-20 09:56:06 +02:00
Makefile ovl: stack file ops 2018-07-18 15:44:41 +02:00
copy_up.c ovl: Enable metadata only feature 2018-07-20 09:56:17 +02:00
dir.c ovl: set I_CREATING on inode being created 2018-08-22 13:15:25 -07:00
export.c ovl: Modify ovl_lookup() and friends to lookup metacopy dentry 2018-07-20 09:56:09 +02:00
file.c ovl: add ovl_fadvise() 2018-09-03 09:43:10 +02:00
inode.c ovl: fix GPF in swapfile_activate of file from overlayfs over xfs 2018-08-30 17:08:35 +02:00
namei.c ovl: Check redirect on index as well 2018-07-20 09:56:16 +02:00
overlayfs.h ovl: add helper to force data copy-up 2018-07-20 09:56:16 +02:00
ovl_entry.h ovl: Store lower data inode in ovl_inode 2018-07-20 09:56:11 +02:00
readdir.c ovl: fix wrong use of impure dir cache in ovl_iterate() 2018-07-17 16:04:34 +02:00
super.c ovl: fix oopses in ovl_fill_super() failure paths 2018-09-10 12:55:49 +02:00
util.c ovl: Check redirect on index as well 2018-07-20 09:56:16 +02:00