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Miklos Szeredi 6a002d48a6 ovl: prevent private clone if bind mount is not allowed 
commit 427215d85e8d1476da1a86b8d67aceb485eb3631 upstream.

Add the following checks from __do_loopback() to clone_private_mount() as
well:

 - verify that the mount is in the current namespace

 - verify that there are no locked children

Reported-by: Alois Wohlschlager <alois1@gmx-topmail.de>
Fixes: c771d683a62e ("vfs: introduce clone_private_mount()")
Cc: <stable@vger.kernel.org> # v3.18
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-15 14:00:27 +02:00
..
9p
fs: 9p: add generic splice_write file operation
2020-12-01 21:40:47 +01:00
adfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
affs
fs/affs: release old buffer head on error path
2021-03-04 11:38:37 +01:00
afs
afs: Fix tracepoint string placement with built-in AFS
2021-07-28 14:35:41 +02:00
autofs
autofs: harden ioctl table
2020-10-16 11:11:22 -07:00
befs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
bfs
bfs: don't use WARNING: string when it's just info.
2021-01-06 14:56:52 +01:00
btrfs
btrfs: fix lost inode on log replay after mix of fsync, rename and inode eviction
2021-08-08 09:05:22 +02:00
cachefiles
fs/cachefiles: Remove wait_bit_key layout dependency
2021-03-30 14:32:07 +02:00
ceph
ceph: don't WARN if we're still opening a session to an MDS
2021-07-28 14:35:40 +02:00
cifs
smb3: rc uninitialized in one fallocate path
2021-08-12 13:22:20 +02:00
coda
…
configfs
configfs: fix memleak in configfs_release_bin_file
2021-07-14 16:56:48 +02:00
cramfs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
crypto
fscrypt: fix derivation of SipHash keys on big endian CPUs
2021-07-14 16:56:53 +02:00
debugfs
debugfs: Make debugfs_allow RO after init
2021-05-19 10:13:19 +02:00
devpts
…
dlm
fs: dlm: fix memory leak when fenced
2021-07-14 16:55:59 +02:00
ecryptfs
Revert "ecryptfs: replace BUG_ON with error handling code"
2021-05-26 12:06:55 +02:00
efivarfs
efivarfs: revert "fix memory leak in efivarfs_create()"
2020-11-25 16:55:02 +01:00
efs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
erofs
erofs: fix error return code in erofs_read_superblock()
2021-07-14 16:56:53 +02:00
exfat
exfat: handle wrong stream entry size in exfat_readdir()
2021-07-14 16:56:52 +02:00
exportfs
…
ext2
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
ext4
ext4: fix potential htree corruption when growing large_dir directories
2021-08-12 13:22:14 +02:00
f2fs
f2fs: Show casefolding support only when supported
2021-07-25 14:36:17 +02:00
fat
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
freevxfs
…
fscache
…
fuse
fuse: reject internal errno
2021-07-14 16:55:47 +02:00
gfs2
gfs2: Fix error handling in init_statfs
2021-07-14 16:55:38 +02:00
hfs
hfs: add lock nesting notation to hfs_find_init
2021-07-31 08:16:12 +02:00
hfsplus
hfsplus: prevent corruption in shrinking truncate
2021-05-19 10:13:10 +02:00
hostfs
hostfs: fix memory handling in follow_link()
2021-04-14 08:42:06 +02:00
hpfs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
hugetlbfs
hugetlbfs: fix mount mode command line processing
2021-07-28 14:35:46 +02:00
iomap
iomap: remove the length variable in iomap_seek_hole
2021-07-31 08:16:12 +02:00
isofs
isofs: release buffer head before return
2021-03-04 11:38:00 +01:00
jbd2
ext4: fix debug format string warning
2021-05-19 10:13:19 +02:00
jffs2
jffs2: check the validity of dstlen in jffs2_zlib_compress()
2021-05-11 14:47:36 +02:00
jfs
fs/jfs: Fix missing error code in lmLogInit()
2021-07-20 16:05:40 +02:00
kernfs
kernfs: wire up ->splice_read and ->splice_write
2021-01-27 11:55:29 +01:00
lockd
lockd: don't use interval-based rebinding over TCP
2020-12-30 11:53:30 +01:00
minix
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
nfs
NFSv4/pNFS: Don't call _nfs4_pnfs_v3_ds_connect multiple times
2021-07-20 16:05:53 +02:00
nfs_common
nfs_common: need lock during iterate through the list
2020-12-30 11:53:45 +01:00
nfsd
nfsd: Reduce contention for the nfsd_file nf_rwsem
2021-07-20 16:05:53 +02:00
nilfs2
nilfs2: fix memory leak in nilfs_sysfs_delete_device_group
2021-06-30 08:47:24 -04:00
nls
…
notify
fanotify: fix copy_event_to_user() fid error clean up
2021-06-23 14:42:41 +02:00
ntfs
ntfs: fix validity check for file name attribute
2021-07-14 16:55:38 +02:00
ocfs2
ocfs2: issue zeroout to EOF blocks
2021-08-04 12:46:40 +02:00
omfs
fs: omfs: use kmemdup() rather than kmalloc+memcpy
2020-09-22 23:39:45 -04:00
openpromfs
…
orangefs
orangefs: fix orangefs df output.
2021-07-20 16:05:48 +02:00
overlayfs
ovl: invalidate readdir cache on changes to dir with origin
2021-05-14 09:50:35 +02:00
proc
proc: Avoid mixing integer types in mem_rw()
2021-07-28 14:35:42 +02:00
pstore
mark pstore-blk as broken
2021-07-14 16:56:12 +02:00
qnx4
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
qnx6
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
quota
quota: Fix memory leak when handling corrupted quota file
2021-03-04 11:37:53 +01:00
ramfs
ramfs: fix nommu mmap with gaps in the page cache
2020-10-16 11:11:22 -07:00
reiserfs
reiserfs: check directory items on read from disk
2021-08-12 13:22:19 +02:00
romfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
squashfs
squashfs: fix divide error in calculate_skip()
2021-05-19 10:13:10 +02:00
sysfs
sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
2020-10-02 12:02:30 +02:00
sysv
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
tracefs
…
ubifs
ubifs: Set/Clear I_LINKABLE under i_lock for whiteout inode
2021-07-20 16:05:51 +02:00
udf
udf: Fix NULL pointer dereference in udf_symlink function
2021-07-19 09:44:40 +02:00
ufs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
unicode
unicode: Add utf8_casefold_hash
2020-09-10 14:03:31 -07:00
vboxsf
vboxsf: Make vboxsf_dir_create() return the handle for the created file
2021-08-15 14:00:26 +02:00
verity
…
xfs
xfs: fix return of uninitialized value in variable error
2021-05-14 09:50:34 +02:00
zonefs
zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone()
2021-03-25 09:04:05 +01:00
aio.c
vfs: separate __sb_start_write into blocking and non-blocking helpers
2020-11-10 16:53:07 -08:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot
2020-10-16 11:11:21 -07:00
binfmt_elf.c
fs: Replace zero-length array with flexible-array member
2020-10-29 17:22:59 -05:00
binfmt_em86.c
…
binfmt_flat.c
binfmt_flat: revert "binfmt_flat: don't offset the data start"
2020-08-24 08:49:13 +10:00
binfmt_misc.c
binfmt_misc: fix possible deadlock in bm_register_write
2021-03-17 17:06:35 +01:00
binfmt_script.c
…
block_dev.c
block: fix a race between del_gendisk and BLKRRPART
2021-06-03 09:00:45 +02:00
buffer.c
mm, memcg: rework remote charging API to support nesting
2020-10-18 09:27:09 -07:00
char_dev.c
…
compat_binfmt_elf.c
…
coredump.c
coredump: fix core_pattern parse error
2020-12-06 10:19:07 -08:00
d_path.c
fs: fix NULL dereference due to data race in prepend_path()
2020-10-14 14:54:45 -07:00
dax.c
dax: fix ENOMEM handling in grab_mapping_entry()
2021-07-14 16:56:13 +02:00
dcache.c
…
dcookies.c
…
direct-io.c
fs: direct-io: fix missing sdio->boundary
2021-04-14 08:41:58 +02:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
fs/epoll: restore waking from ep_done_scan()
2021-05-11 14:47:12 +02:00
exec.c
Add a reference to ucounts for each cred
2021-07-14 16:55:48 +02:00
fcntl.c
fcntl: Fix potential deadlock in send_sig{io, urg}()
2021-01-06 14:56:53 +01:00
fhandle.c
…
file_table.c
task_work: cleanup notification modes
2020-10-17 15:05:30 -06:00
file.c
kernel/io_uring: cancel io_uring before task works
2021-01-30 13:55:18 +01:00
filesystems.c
…
fs_context.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
fs_parser.c
fs_parse: mark fs_param_bad_value() as static
2020-10-13 18:38:27 -07:00
fs_pin.c
…
fs_struct.c
…
fs_types.c
…
fs-writeback.c
writeback: fix obtain a reference to a freeing memcg css
2021-07-14 16:56:31 +02:00
fsopen.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
init.c
…
inode.c
fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode()
2020-12-30 11:53:49 +01:00
internal.h
cgroup1: fix leaked context root causing sporadic NULL deref in LTP
2021-07-31 08:16:11 +02:00
io_uring.c
io_uring: fix null-ptr-deref in io_sq_offload_start()
2021-08-04 12:46:39 +02:00
io-wq.c
io_uring: fix false WARN_ONCE
2021-07-19 09:44:51 +02:00
io-wq.h
io_uring: always batch cancel in *cancel_files()
2021-02-13 13:54:56 +01:00
ioctl.c
…
Kconfig
tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha
2021-02-17 11:02:21 +01:00
Kconfig.binfmt
…
kernel_read_file.c
fs/kernel_file_read: Add "offset" arg for partial reads
2020-10-05 13:37:04 +02:00
libfs.c
libfs: fix error cast of negative value in simple_attr_write()
2020-11-22 10:48:22 -08:00
locks.c
Revert "nfsd4: a client's own opens needn't prevent delegations"
2021-03-20 10:43:44 +01:00
Makefile
Refactored code for 5.10:
2020-10-23 11:33:41 -07:00
mbcache.c
…
mount.h
…
mpage.c
…
namei.c
LOOKUP_MOUNTPOINT: we are cleaning "jumped" flag too late
2021-04-14 08:41:58 +02:00
namespace.c
ovl: prevent private clone if bind mount is not allowed
2021-08-15 14:00:27 +02:00
no-block.c
…
nsfs.c
…
open.c
open: don't silently ignore unknown O-flags in openat2()
2021-07-14 16:55:59 +02:00
pipe.c
pipe: increase minimum default pipe size to 2 pages
2021-08-12 13:22:14 +02:00
pnode.c
…
pnode.h
mount: fix mounting of detached mounts onto targets that reside on shared mounts
2021-03-17 17:06:13 +01:00
posix_acl.c
…
proc_namespace.c
proc mountinfo: make splice available again
2020-12-30 11:54:02 +01:00
read_write.c
Refactored code for 5.10:
2020-10-23 11:33:41 -07:00
readdir.c
readdir: make sure to verify directory entry for legacy interfaces too
2021-04-21 13:00:54 +02:00
remap_range.c
vfs: move the remap range helpers to remap_range.c
2020-10-15 09:48:49 -07:00
select.c
kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
2021-03-25 09:04:16 +01:00
seq_file.c
seq_file: disallow extremely large seq buffer allocations
2021-07-20 16:05:59 +02:00
signalfd.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
splice.c
io_uring-5.10-2020-10-24
2020-10-24 12:40:18 -07:00
stack.c
…
stat.c
fs: fix reporting supported extra file attributes for statx()
2021-05-11 14:47:33 +02:00
statfs.c
Add a "nosymfollow" mount option.
2020-08-27 16:06:47 -04:00
super.c
vfs: move __sb_{start,end}_write* to fs.h
2020-11-10 16:53:11 -08:00
sync.c
…
timerfd.c
…
userfaultfd.c
userfaultfd: do not untag user pointers
2021-07-28 14:35:46 +02:00
utimes.c
…
xattr.c
fs/xattr.c: fix kernel-doc warnings for setxattr & removexattr
2020-10-13 18:38:27 -07:00