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5ffdbe8bf1e485026e1c7e4714d2841553cf0b40
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Konstantin Khlebnikov 5ffdbe8bf1 ovl: free lower_mnt array in ovl_put_super 
This fixes memory leak after umount.

Kmemleak report:

unreferenced object 0xffff8800ba791010 (size 8):
  comm "mount", pid 2394, jiffies 4294996294 (age 53.920s)
  hex dump (first 8 bytes):
    20 1c 13 02 00 88 ff ff                           .......
  backtrace:
    [<ffffffff811f8cd4>] create_object+0x124/0x2c0
    [<ffffffff817a059b>] kmemleak_alloc+0x7b/0xc0
    [<ffffffff811dffe6>] __kmalloc+0x106/0x340
    [<ffffffffa0152bfc>] ovl_fill_super+0x55c/0x9b0 [overlay]
    [<ffffffff81200ac4>] mount_nodev+0x54/0xa0
    [<ffffffffa0152118>] ovl_mount+0x18/0x20 [overlay]
    [<ffffffff81201ab3>] mount_fs+0x43/0x170
    [<ffffffff81220d34>] vfs_kern_mount+0x74/0x170
    [<ffffffff812233ad>] do_mount+0x22d/0xdf0
    [<ffffffff812242cb>] SyS_mount+0x7b/0xc0
    [<ffffffff817b6bee>] entry_SYSCALL_64_fastpath+0x12/0x76
    [<ffffffffffffffff>] 0xffffffffffffffff

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Fixes: dd662667e6 ("ovl: add mutli-layer infrastructure")
Cc: <stable@vger.kernel.org> # v4.0+
2015-10-12 17:11:44 +02:00
..
9p
9p: don't leave a half-initialized inode sitting around
2015-07-12 11:22:05 -04:00
adfs
fs/adfs: remove unneeded cast
2015-06-30 19:44:57 -07:00
affs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
afs
net: Add a struct net parameter to sock_create_kern
2015-05-11 10:50:17 -04:00
autofs4
make simple_positive() public
2015-06-23 18:02:01 -04:00
befs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
bfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
btrfs
Merge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2015-08-09 05:56:31 +03:00
cachefiles
Merge branch 'fscache-fixes' into for-next
2015-06-23 18:01:30 -04:00
ceph
ceph: always re-send cap flushes when MDS recovers
2015-07-31 11:38:53 +03:00
cifs
cifs: Unset CIFS_MOUNT_POSIX_PATHS flag when following dfs mounts
2015-06-29 14:50:22 -05:00
coda
fs: cleanup slight list_entry abuse
2015-06-23 18:01:59 -04:00
configfs
configfs: fix kernel infoleak through user-controlled format string
2015-07-17 16:39:53 -07:00
cramfs
…
debugfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
devpts
devpts: if initialization failed, don't crash when opening /dev/ptmx
2015-06-30 19:44:58 -07:00
dlm
net: Add a struct net parameter to sock_create_kern
2015-05-11 10:50:17 -04:00
ecryptfs
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
efivarfs
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-05-06 10:57:37 -07:00
efs
fs/efs: femove unneeded cast
2015-06-25 17:00:42 -07:00
exofs
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
exportfs
…
ext2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ext3
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2015-06-24 20:07:10 -07:00
ext4
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
f2fs
f2fs: call set_page_dirty to attach i_wb for cgroup
2015-07-25 08:54:26 -07:00
fat
writeback: separate out include/linux/backing-dev-defs.h
2015-06-02 08:33:34 -06:00
freevxfs
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
fscache
…
fuse
fs/fuse: fix ioctl type confusion
2015-08-16 12:35:44 -07:00
gfs2
Merge tag 'gfs2-merge-window' of git://git.kernel.org:/pub/scm/linux/kernel/git/gfs2/linux-gfs2
2015-06-27 09:47:46 -07:00
hfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
hfsplus
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
hostfs
Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-06-22 12:51:21 -07:00
hpfs
hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
2015-07-09 13:35:31 -07:00
hugetlbfs
ipc: use private shmem or hugetlbfs inodes for shm segments.
2015-08-07 04:39:41 +03:00
isofs
VFS: normal filesystems (and lustre): d_inode() annotations
2015-04-15 15:06:57 -04:00
jbd
…
jbd2
Revert "jbd2: speedup jbd2_journal_dirty_metadata()"
2015-06-27 09:41:50 -07:00
jffs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
jfs
Merge tag 'jfs-4.2' of git://github.com/kleikamp/linux-shaggy
2015-07-16 16:28:28 -07:00
kernfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
lockd
nfsd: eliminate NFSD_DEBUG
2015-04-21 16:16:02 -04:00
logfs
logfs: fix a pagecache leak for symlinks
2015-05-10 22:18:28 -04:00
minix
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ncpfs
ncpfs: successful rename() should invalidate caches for parents
2015-06-14 11:31:39 -04:00
nfs
Merge tag 'nfs-for-4.2-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
2015-07-28 09:37:44 -07:00
nfs_common
…
nfsd
nfsd: do nfs4_check_fh in nfs4_check_file instead of nfs4_check_olstateid
2015-07-31 16:30:26 -04:00
nilfs2
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
nls
…
notify
fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()
2015-08-07 04:39:41 +03:00
ntfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ocfs2
ocfs2: fix shift left overflow
2015-08-07 04:39:41 +03:00
omfs
omfs: fix potential integer overflow in allocator
2015-05-28 18:25:19 -07:00
openpromfs
…
overlayfs
ovl: free lower_mnt array in ovl_put_super
2015-10-12 17:11:44 +02:00
proc
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-07-18 10:49:57 -07:00
pstore
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
qnx4
…
qnx6
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
quota
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
ramfs
VFS: normal filesystems (and lustre): d_inode() annotations
2015-04-15 15:06:57 -04:00
reiserfs
Merge branch 'akpm' (patches from Andrew)
2015-06-26 09:52:05 -07:00
romfs
make new_sync_{read,write}() static
2015-04-11 22:29:40 -04:00
squashfs
fs: cleanup slight list_entry abuse
2015-06-23 18:01:59 -04:00
sysfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
sysv
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
tracefs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
ubifs
Merge tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifs
2015-06-25 14:11:34 -07:00
udf
udf: Don't corrupt unalloc spacetable when writing it
2015-07-09 16:38:57 +02:00
ufs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
xfs
xfs: remote attributes need to be considered data
2015-07-29 11:48:02 +10:00
aio.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-16 23:27:56 -04:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
binfmt_script.c
…
block_dev.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
buffer.c
buffer: remove unusued 'ret' variable
2015-06-02 09:22:34 -06:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
ioctl_compat: handle FITRIM
2015-07-09 11:42:21 -07:00
compat.c
…
coredump.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
dax.c
xfs: call dax_fault on read page faults for DAX
2015-07-29 11:48:00 +10:00
dcache.c
fs, file table: reinit files_stat.max_files after deferred memory initialisation
2015-08-07 04:39:40 +03:00
dcookies.c
…
direct-io.c
direct-io: only inc/dec inode->i_dio_count for file systems
2015-04-24 15:45:28 -04:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
…
exec.c
parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures
2015-05-12 22:03:44 +02:00
fcntl.c
…
fhandle.c
vfs: read file_handle only once in handle_to_path
2015-06-02 10:29:07 -07:00
file_table.c
fs, file table: reinit files_stat.max_files after deferred memory initialisation
2015-08-07 04:39:40 +03:00
file.c
fs/file.c: __fget() and dup2() atomicity rules
2015-07-01 02:31:08 -04:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
writeback: sync_inodes_sb() must write out I_DIRTY_TIME inodes and always call wait_sb_inodes()
2015-08-25 14:35:09 -06:00
inode.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
internal.h
overlayfs: Make f_path always point to the overlay and f_inode to the underlay
2015-06-19 03:19:32 -04:00
ioctl.c
…
Kconfig
…
Kconfig.binfmt
mm: split ET_DYN ASLR from mmap ASLR
2015-04-14 16:49:05 -07:00
libfs.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
locks.c
locks: inline posix_lock_file_wait and flock_lock_file_wait
2015-07-13 06:29:11 -04:00
Makefile
um: Remove hppfs
2015-05-31 13:23:08 +02:00
mbcache.c
…
mount.h
fs: use seq_open_private() for proc_mounts
2015-06-30 19:44:56 -07:00
mpage.c
writeback: implement foreign cgroup inode detection
2015-06-02 08:40:20 -06:00
namei.c
may_follow_link() should use nd->inode
2015-08-04 23:23:50 -04:00
namespace.c
mnt: In detach_mounts detach the appropriate unmounted mount
2015-07-23 11:31:15 -05:00
no-block.c
…
nsfs.c
VFS: assorted weird filesystems: d_inode() annotations
2015-04-15 15:06:58 -04:00
open.c
fs: Call security_ops->inode_killpriv on truncate
2015-06-23 18:01:09 -04:00
pipe.c
VFS: assorted weird filesystems: d_inode() annotations
2015-04-15 15:06:58 -04:00
pnode.c
…
pnode.h
mnt: Clarify and correct the disconnect logic in umount_tree
2015-07-22 20:33:27 -05:00
posix_acl.c
fs/posix_acl.c: make posix_acl_create() safer and cleaner
2015-06-23 18:01:07 -04:00
proc_namespace.c
fs: use seq_open_private() for proc_mounts
2015-06-30 19:44:56 -07:00
read_write.c
new_sync_write(): discard ->ki_pos unless the return value is positive
2015-04-11 22:29:46 -04:00
readdir.c
…
select.c
locking/arch: Rename set_mb() to smp_store_mb()
2015-05-19 08:32:00 +02:00
seq_file.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
signalfd.c
signalfd: fix information leak in signalfd_copyinfo
2015-08-07 04:39:40 +03:00
splice.c
Merge branch 'akpm' (patches from Andrew)
2015-06-24 20:47:21 -07:00
stack.c
…
stat.c
VFS: assorted d_backing_inode() annotations
2015-04-15 15:06:59 -04:00
statfs.c
…
super.c
fs:super:get_anon_bdev: fix race condition could cause dev exceed its upper limitation
2015-07-01 01:50:06 -04:00
sync.c
…
timerfd.c
…
utimes.c
…
xattr.c
evm: fix potential race when removing xattrs
2015-05-21 13:28:47 -04:00