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Miklos Szeredi 54c4ddcbab ovl: disallow overlayfs as upperdir 
commit 76bc8e2843b66f8205026365966b49ec6da39ae7 upstream.

This does not work and does not make sense.  So instead of fixing it
(probably not hard) just disallow.

Reported-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-20 18:09:19 +02:00
..
9p
9p: use file_dentry()
2016-08-10 11:49:27 +02:00
adfs
…
affs
affs: fix remount failure when there are no options changed
2016-06-07 18:14:32 -07:00
afs
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autofs4
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befs
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bfs
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btrfs
btrfs: account for non-CoW'd blocks in btrfs_abort_transaction
2016-07-27 09:47:33 -07:00
cachefiles
FS-Cache: Add missing initialization of ret in cachefiles_write_page()
2015-11-16 20:38:43 -05:00
ceph
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2015-11-13 09:24:40 -08:00
cifs
File names with trailing period or space need special case conversion
2016-07-27 09:47:39 -07:00
coda
fs/coda: fix readlink buffer overflow
2015-09-10 13:29:01 -07:00
configfs
configfs: allow dynamic group creation
2015-11-20 16:17:32 -08:00
cramfs
…
debugfs
debugfs: Make automount point inodes permanently empty
2016-05-04 14:48:41 -07:00
devpts
devpts: clean up interface to pty drivers
2016-08-16 09:30:49 +02:00
dlm
net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA
2015-12-01 15:45:05 -05:00
ecryptfs
ecryptfs: don't allow mmap when the lower fs doesn't support it
2016-08-10 11:49:27 +02:00
efivarfs
efi: Make efivarfs entries immutable by default
2016-03-03 15:07:09 -08:00
efs
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exofs
osd fs: __r4w_get_page rely on PageUptodate for uptodate
2015-12-12 10:15:34 -08:00
exportfs
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ext2
ext2, ext4: warn when mounting with dax enabled
2015-11-16 09:43:54 -08:00
ext4
ext4: fix reference counting bug on block allocation error
2016-08-16 09:30:51 +02:00
f2fs
Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-11-13 18:02:30 -08:00
fat
fat: fix fake_offset handling on error path
2015-11-20 16:17:32 -08:00
freevxfs
…
fscache
FS-Cache: Handle a write to the page immediately beyond the EOF marker
2015-11-11 02:11:02 -05:00
fuse
fuse: fix wrong assignment of ->flags in fuse_send_init()
2016-08-16 09:30:50 +02:00
gfs2
Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-11-13 18:02:30 -08:00
hfs
hfs: fix B-tree corruption after insertion at position 0
2015-09-10 13:29:01 -07:00
hfsplus
xattr handlers: Pass handler to operations instead of flags
2015-11-13 20:34:32 -05:00
hostfs
uml: fix hostfs mknod()
2016-03-03 15:07:12 -08:00
hpfs
hpfs: implement the show_options method
2016-06-01 12:15:54 -07:00
hugetlbfs
fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list()
2016-02-25 12:01:22 -08:00
isofs
get_rock_ridge_filename(): handle malformed NM entries
2016-05-18 17:06:54 -07:00
jbd2
jbd2: fix FS corruption possibility in jbd2_journal_destroy() on umount path
2016-04-12 09:08:53 -07:00
jffs2
jffs2: reduce the breakage on recovery from halfway failed rename()
2016-03-16 08:42:58 -07:00
jfs
fs/jfs: remove unnecessary new_valid_dev() checks
2015-11-09 15:11:24 -08:00
kernfs
kernfs: implement kernfs_path_len()
2015-08-18 15:49:15 -07:00
lockd
Mainly smaller bugfixes and cleanup. We're still finding some bugs from
2015-11-11 20:11:28 -08:00
logfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
minix
…
ncpfs
ncpfs: fix a braino in OOM handling in ncp_fill_cache()
2016-03-16 08:42:59 -07:00
nfs
NFS: Fix another OPEN_DOWNGRADE bug
2016-07-27 09:47:30 -07:00
nfs_common
lockd: NLM grace period shouldn't block NFSv4 opens
2015-08-13 10:22:06 -04:00
nfsd
nfsd: check permissions when setting ACLs
2016-07-27 09:47:30 -07:00
nilfs2
fs/nilfs2: fix potential underflow in call to crc32_le
2016-08-10 11:49:25 +02:00
nls
…
notify
inotify: actually check for invalid bits in sys_inotify_add_watch()
2015-11-05 19:34:48 -08:00
ntfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
ocfs2
ocfs2: fix posix_acl_create deadlock
2016-05-18 17:06:44 -07:00
omfs
…
openpromfs
…
overlayfs
ovl: disallow overlayfs as upperdir
2016-08-20 18:09:19 +02:00
proc
proc: prevent stacking filesystems on top
2016-06-24 10:18:20 -07:00
pstore
pstore: fix code comment to match code
2015-11-02 13:41:52 -08:00
qnx4
…
qnx6
…
quota
quota: Fix possible GPF due to uninitialised pointers
2016-04-12 09:08:56 -07:00
ramfs
mm, fs: obey gfp_mapping for add_to_page_cache()
2015-10-16 11:42:28 -07:00
reiserfs
Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-11-13 18:02:30 -08:00
romfs
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squashfs
squashfs: xattr simplifications
2015-11-13 20:34:33 -05:00
sysfs
platform/chrome: Branch for v4.4
2015-11-13 21:53:18 -08:00
sysv
fix sysvfs symlinks
2015-11-23 21:11:08 -05:00
tracefs
tracefs: Fix refcount imbalance in start_creating()
2015-11-04 22:13:45 -05:00
ubifs
UBIFS: Implement ->migratepage()
2016-07-27 09:47:31 -07:00
udf
udf: Check output buffer length when converting name to CS0
2016-02-25 12:01:18 -08:00
ufs
fix ufs write vs readpage race when writing into a hole
2015-09-09 10:43:12 -07:00
xfs
xfs: handle dquot buffer readahead in log recovery correctly
2016-06-07 18:14:38 -07:00
aio.c
mm: move ->mremap() from file_operations to vm_operations_struct
2015-09-04 16:54:41 -07:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
libnvdimm for 4.4:
2015-11-10 12:07:22 -08:00
binfmt_elf.c
Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-11-11 09:45:24 -08:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
…
binfmt_script.c
…
block_dev.c
block: detach bdev inode from its wb in __blkdev_put()
2015-12-04 11:02:17 -07:00
buffer.c
vfs: remove unused wrapper block_page_mkwrite()
2015-11-11 02:19:33 -05:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
i2c-dev: Fix typo in ioctl name reference
2015-10-23 23:26:43 +02:00
compat.c
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coredump.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -07:00
dax.c
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
dcache.c
fs/dcache.c: avoid soft-lockup in dput()
2016-08-16 09:30:50 +02:00
dcookies.c
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direct-io.c
block: fix use-after-free in dio_bio_complete
2016-03-03 15:07:28 -08:00
drop_caches.c
inode: convert inode_sb_list_lock to per-sb
2015-08-17 18:39:46 -04:00
eventfd.c
…
eventpoll.c
…
exec.c
…
fcntl.c
…
fhandle.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -07:00
file_table.c
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file.c
vfs: clear remainder of 'full_fds_bits' in dup_fd()
2015-11-05 23:05:32 -08:00
filesystems.c
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fs_pin.c
…
fs_struct.c
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fs-writeback.c
writeback, cgroup: fix use of the wrong bdi_writeback which mismatches the inode
2016-04-12 09:09:04 -07:00
inode.c
vfs: fix deadlock in file_remove_privs() on overlayfs
2016-08-10 11:49:30 +02:00
internal.h
inode: rename i_wb_list to i_io_list
2015-08-17 23:38:10 -04:00
ioctl.c
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Kconfig
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
Kconfig.binfmt
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libfs.c
fs: Set the size of empty dirs to 0.
2015-08-12 15:28:45 -05:00
locks.c
locks: use file_inode()
2016-08-10 11:49:27 +02:00
Makefile
ext4: promote ext4 over ext2 in the default probe order
2015-10-15 10:33:21 -04:00
mbcache.c
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mount.h
…
mpage.c
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
namei.c
atomic_open(): fix the handling of create_error
2016-05-18 17:06:51 -07:00
namespace.c
namespace: update event counter when umounting a deleted dentry
2016-08-10 11:49:27 +02:00
no-block.c
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nsfs.c
fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void
2015-09-11 15:21:34 -07:00
open.c
vfs: add vfs_select_inode() helper
2016-05-18 17:06:48 -07:00
pipe.c
pipe: limit the per-user amount of pages allocated in pipes
2016-06-07 18:14:35 -07:00
pnode.c
propogate_mnt: Handle the first propogated copy being a slave
2016-05-11 11:21:19 +02:00
pnode.h
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posix_acl.c
posix_acl: Add set_posix_acl
2016-07-27 09:47:30 -07:00
proc_namespace.c
vfs: show_vfsstat: do not ignore errors from show_devname method
2016-04-12 09:08:55 -07:00
read_write.c
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readdir.c
…
select.c
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seq_file.c
fs, seqfile: always allow oom killer
2015-11-06 17:50:42 -08:00
signalfd.c
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splice.c
splice: handle zero nr_pages in splice_to_pipe()
2016-04-12 09:08:55 -07:00
stack.c
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stat.c
fs/stat.c: remove unnecessary new_valid_dev() check
2015-11-09 15:11:24 -08:00
statfs.c
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super.c
writeback: flush inode cgroup wb switches instead of pinning super_block
2016-03-09 15:34:52 -08:00
sync.c
fs/sync.c: make sync_file_range(2) use WB_SYNC_NONE writeback
2015-11-06 17:50:42 -08:00
timerfd.c
timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
2016-02-25 12:01:25 -08:00
userfaultfd.c
userfaultfd: don't block on the last VM updates at exit time
2016-03-16 08:43:01 -07:00
utimes.c
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xattr.c
9p: xattr simplifications
2015-11-13 20:34:33 -05:00