Amir Goldstein 3e929ddf18 ovl: fix corner case of non-unique st_dev;st_ino ... commit 9c6d8f13e9da10a26ad7f0a020ef86e8ef142835 upstream. On non-samefs overlay without xino, non pure upper inodes should use a pseudo_dev assigned to each unique lower fs and pure upper inodes use the real upper st_dev. It is fine for an overlay pure upper inode to use the same st_dev;st_ino values as the real upper inode, because the content of those two different filesystem objects is always the same. In this case, however: - two filesystems, A and B - upper layer is on A - lower layer 1 is also on A - lower layer 2 is on B Non pure upper overlay inode, whose origin is in layer 1 will have the same st_dev;st_ino values as the real lower inode. This may result with a false positive results of 'diff' between the real lower and copied up overlay inode. Fix this by using the upper st_dev;st_ino values in this case. This breaks the property of constant st_dev;st_ino across copy up of this case. This breakage will be fixed by a later patch. Fixes: 5148626b80 ("ovl: allocate anon bdev per unique lower fs") Cc: stable@vger.kernel.org # v4.17+ 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>		2019-12-17 20:34:51 +01:00
..
9p	9p: avoid attaching writeback_fid on mmap with type PRIVATE	2019-10-11 18:21:13 +02:00
adfs	fs/adfs: super: fix use-after-free bug	2019-08-06 19:06:49 +02:00
affs
afs	afs: Fix leak in afs_lookup_cell_rcu()	2019-09-10 10:33:52 +01:00
autofs	autofs: fix a leak in autofs_expire_indirect()	2019-12-13 08:51:01 +01:00
befs
bfs
btrfs	btrfs: record all roots for rename exchange on a subvol	2019-12-17 20:34:49 +01:00
cachefiles
ceph	ceph: return -EINVAL if given fsc mount option on kernel w/o support	2019-12-05 09:19:45 +01:00
cifs	CIFS: Fix SMB2 oplock break processing	2019-12-13 08:52:42 +01:00
coda	coda: add error handling for fget	2019-08-06 19:06:51 +02:00
configfs	configfs: fix a deadlock in configfs_symlink()	2019-11-12 19:20:47 +01:00
cramfs
crypto	fscrypt: clean up some BUG_ON()s in block encryption/decryption	2019-07-26 09:14:02 +02:00
debugfs	debugfs: fix use-after-free on symlink traversal	2019-05-08 07:21:48 +02:00
devpts	fs/devpts: always delete dcache dentry-s in dput()	2019-03-23 20:09:59 +01:00
dlm	dlm: fix invalid cluster name warning	2019-12-13 08:52:23 +01:00
ecryptfs	ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either	2019-11-20 18:45:18 +01:00
efivarfs
efs
exofs	exofs_mount(): fix leaks on failure exits	2019-12-05 09:20:32 +01:00
exportfs	exportfs_decode_fh(): negative pinned may become positive without the parent locked	2019-12-13 08:51:02 +01:00
ext2	ext2: Fix underflow in ext2_max_size()	2019-03-23 20:10:03 +01:00
ext4	ext4: add more paranoia checking in ext4_expand_extra_isize handling	2019-12-05 09:21:32 +01:00
f2fs	f2fs: fix to allow node segment for GC by ioctl path	2019-12-13 08:51:51 +01:00
fat	fat: work around race with userspace's read via blockdev while mounting	2019-10-07 18:57:14 +02:00
freevxfs
fscache
fuse	fuse: verify attributes	2019-12-13 08:52:36 +01:00
gfs2	gfs2: take jdata unstuff into account in do_grow	2019-12-05 09:20:36 +01:00
hfs	fs/hfs/extent.c: fix array out of bounds read of array extent	2019-12-01 09:17:10 +01:00
hfsplus	hfsplus: update timestamps on truncate()	2019-12-01 09:17:09 +01:00
hostfs
hpfs
hugetlbfs	hugetlb: use same fault hash key for shared and private mappings	2019-05-22 07:37:40 +02:00
isofs
jbd2	jbd2: introduce jbd2_inode dirty range scoping	2019-07-28 08:29:29 +02:00
jffs2	jffs2: fix use-after-free on symlink traversal	2019-05-08 07:21:48 +02:00
jfs
kernfs	kernfs: fix ino wrap-around detection	2019-12-13 08:52:43 +01:00
lockd	lockd: fix decoding of TEST results	2019-12-13 08:51:59 +01:00
minix
nfs	NFSv4.x: fix lock recovery during delegation recall	2019-11-24 08:20:24 +01:00
nfs_common
nfsd	nfsd: Return EPERM, not EACCES, in some SETATTR cases	2019-12-13 08:52:26 +01:00
nilfs2
nls
notify	memcg, fsnotify: no oom-kill for remote memcg charging	2019-07-31 07:27:08 +02:00
ntfs
ocfs2	ocfs2: clear journal dirty flag after shutdown journal	2019-12-05 09:20:56 +01:00
omfs
openpromfs
orangefs	orangefs: rate limit the client not running info message	2019-11-24 08:20:57 +01:00
overlayfs	ovl: fix corner case of non-unique st_dev;st_ino	2019-12-17 20:34:51 +01:00
proc	proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted()	2019-11-24 08:20:45 +01:00
pstore	pstore/ram: Avoid NULL deref in ftrace merging failure path	2019-12-13 08:52:24 +01:00
qnx4
qnx6
quota	quota: fix a problem about transfer quota	2019-07-14 08:11:15 +02:00
ramfs
reiserfs
romfs
squashfs
sysfs
sysv
tracefs
ubifs	ubifs: Fix default compression selection in ubifs	2019-12-05 09:20:09 +01:00
udf	udf: Fix crash during mount	2019-11-20 18:46:04 +01:00
ufs	ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour	2019-05-25 18:23:46 +02:00
xfs	xfs: add missing error check in xfs_prepare_shift()	2019-12-13 08:52:57 +01:00
aio.c	Fix aio_poll() races	2019-05-02 09:58:59 +02:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c	binfmt_elf: Do not move brk for INTERP-less ET_EXEC	2019-10-05 13:10:06 +02:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c	fs/binfmt_flat.c: make load_flat_shared_library() work	2019-07-03 13:14:44 +02:00
binfmt_misc.c
binfmt_script.c	exec: load_script: Do not exec truncated interpreter path	2019-11-06 13:05:37 +01:00
block_dev.c	block: fix the return errno for direct IO	2019-04-17 08:38:52 +02:00
buffer.c	fs: fix guard_bio_eod to check for real EOD errors	2019-04-05 22:33:00 +02:00
char_dev.c	chardev: add additional check for minor range overlap	2019-05-31 06:46:27 -07:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c	media: dvb: fix compat ioctl translation	2019-11-20 18:46:33 +01:00
coredump.c
d_path.c
dax.c	dax: dax_layout_busy_page() should not unmap cow pages	2019-08-16 10:12:52 +02:00
dcache.c	dcache: sort the freeing-without-RCU-delay mess for good.	2019-05-25 18:23:26 +02:00
dcookies.c
direct-io.c	direct-io: allow direct writes to empty inodes	2019-03-05 17:58:50 +01:00
drop_caches.c	fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()	2019-03-13 14:02:32 -07:00
eventfd.c
eventpoll.c	fs/epoll: drop ovflist branch prediction	2019-02-12 19:47:19 +01:00
exec.c	sched/fair: Don't free p->numa_faults with concurrent readers	2019-08-04 09:30:56 +02:00
fcntl.c
fhandle.c
file.c	fs/file.c: initialize init_files.resize_wait	2019-04-05 22:32:59 +02:00
file_table.c
filesystems.c
fs-writeback.c	cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead	2019-11-12 19:21:20 +01:00
fs_pin.c
fs_struct.c
inode.c	Abort file_remove_privs() for non-reg. files	2019-06-22 08:15:21 +02:00
internal.h	acct_on(): don't mess with freeze protection	2019-05-31 06:46:05 -07:00
ioctl.c
iomap.c	iomap: partially revert 4721a601099 (simulated directio short read on EFAULT)	2019-12-13 08:52:56 +01:00
Kconfig
Kconfig.binfmt
libfs.c	Fix the locking in dcache_readdir() and friends	2019-10-17 13:45:35 -07:00
locks.c
Makefile
mbcache.c
mount.h
mpage.c
namei.c
namespace.c
no-block.c
nsfs.c	dcache: sort the freeing-without-RCU-delay mess for good.	2019-05-25 18:23:26 +02:00
open.c	access: avoid the RCU grace period for the temporary subjective credentials	2019-07-31 07:27:11 +02:00
pipe.c	fs: prevent page refcount overflow in pipe_buf_get	2019-05-04 09:20:11 +02:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c	vfs: avoid problematic remapping requests into partial EOF block	2019-12-01 09:17:04 +01:00
readdir.c
select.c
seq_file.c	seq_file: fix problem when seeking mid-record	2019-08-25 10:47:43 +02:00
signalfd.c
splice.c	splice: don't read more than available pipe space	2019-12-13 08:52:55 +01:00
stack.c
stat.c
statfs.c	vfs: Fix EOVERFLOW testing in put_compat_statfs64	2019-10-11 18:21:39 +02:00
super.c
sync.c
timerfd.c
userfaultfd.c	userfaultfd_release: always remove uffd flags and clear vm_userfaultfd_ctx	2019-08-29 08:28:52 +02:00
utimes.c
xattr.c