linux

iv/linux

History

Amir Goldstein 66458aa271 ovl: fix value of i_ino for lower hardlink corner case

commit 300b124fcf6ad2cd99a7b721e0f096785e0a3134 upstream.

Commit 6dde1e42f497 ("ovl: make i_ino consistent with st_ino in more
cases"), relaxed the condition nfs_export=on in order to set the value of
i_ino to xino map of real ino.

Specifically, it also relaxed the pre-condition that index=on for
consistent i_ino. This opened the corner case of lower hardlink in
ovl_get_inode(), which calls ovl_fill_inode() with ino=0 and then
ovl_init_inode() is called to set i_ino to lower real ino without the xino
mapping.

Pass the correct values of ino;fsid in this case to ovl_fill_inode(), so it
can initialize i_ino correctly.

Fixes: 6dde1e42f497 ("ovl: make i_ino consistent with st_ino in more ...")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-04-21 09:04:50 +02:00

copy_up.c

SPDX update for 5.2-rc6

2019-06-21 09:58:42 -07:00

dir.c

ovl: relax WARN_ON() on rename to self

2019-12-17 19:56:11 +01:00

export.c

ovl: Fix dereferencing possible ERR_PTR()

2019-09-11 16:11:45 +02:00

file.c

ovl: fix lseek overflow on 32bit