Tyler Hicks 6d65261a09 eCryptfs: don't pass fs-specific ioctl commands through ... eCryptfs can't be aware of what to expect when after passing an arbitrary ioctl command through to the lower filesystem. The ioctl command may trigger an action in the lower filesystem that is incompatible with eCryptfs. One specific example is when one attempts to use the Btrfs clone ioctl command when the source file is in the Btrfs filesystem that eCryptfs is mounted on top of and the destination fd is from a new file created in the eCryptfs mount. The ioctl syscall incorrectly returns success because the command is passed down to Btrfs which thinks that it was able to do the clone operation. However, the result is an empty eCryptfs file. This patch allows the trim, {g,s}etflags, and {g,s}etversion ioctl commands through and then copies up the inode metadata from the lower inode to the eCryptfs inode to catch any changes made to the lower inode's metadata. Those five ioctl commands are mostly common across all filesystems but the whitelist may need to be further pruned in the future. https://bugzilla.kernel.org/show_bug.cgi?id=93691 https://launchpad.net/bugs/1305335 Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Cc: Rocko <rockorequin@hotmail.com> Cc: Colin Ian King <colin.king@canonical.com> Cc: stable@vger.kernel.org # v2.6.36+: c43f7b8 eCryptfs: Handle ioctl calls with unlocked and compat functions		2015-03-03 02:03:56 -06:00
..
9p	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
adfs
affs	fs/affs/super.c: fix switch indentation	2015-02-17 14:34:53 -08:00
afs
autofs4	autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation	2015-02-22 11:43:34 -05:00
befs	fs/befs/linuxvfs.c: remove unnecessary casting	2015-02-17 14:34:50 -08:00
bfs
btrfs	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
cachefiles	Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions	2015-02-22 11:38:41 -05:00
ceph	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
cifs	Revert "locks: keep a count of locks on the flctx lists"	2015-02-16 14:32:03 -05:00
coda	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
configfs	configfs: Fix potential NULL d_inode dereference	2015-02-20 04:56:43 -05:00
cramfs
debugfs	debugfs: leave freeing a symlink body until inode eviction	2015-02-22 11:38:43 -05:00
devpts
dlm
ecryptfs	eCryptfs: don't pass fs-specific ioctl commands through	2015-03-03 02:03:56 -06:00
efivarfs
efs
exofs	vfs: remove get_xip_mem	2015-02-16 17:56:03 -08:00
exportfs	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
ext2	ext2: get rid of most mentions of XIP in ext2	2015-02-16 17:56:04 -08:00
ext3
ext4	Ext4 bug fixes for 3.20. We also reserved code points for encryption	2015-02-22 18:05:13 -08:00
f2fs	Merge tag 'for-f2fs-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs	2015-02-12 19:28:50 -08:00
fat	fs: fat: use MSDOS_SB macro to get msdos_sb_info	2015-02-17 14:34:51 -08:00
freevxfs
fscache
fuse	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
gfs2	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
hfs
hfsplus	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
hostfs
hpfs
hppfs	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
hugetlbfs
isofs
jbd
jbd2
jffs2	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
jfs	Merge branch 'lazytime' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-17 16:12:34 -08:00
kernfs	kernfs: remove KERNFS_STATIC_NAME	2015-02-13 21:21:36 -08:00
lockd
logfs
minix
ncpfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-17 14:56:45 -08:00
nfs	NFSv4.1: Clean up bind_conn_to_session	2015-02-18 13:11:09 -08:00
nfs_common
nfsd	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
nilfs2
nls
notify	fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions	2015-02-22 11:38:42 -05:00
ntfs
ocfs2	ocfs2: set append dio as a ro compat feature	2015-02-16 17:56:05 -08:00
omfs
openpromfs
overlayfs	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
proc	procfs: fix race between symlink removals and traversals	2015-02-22 11:43:12 -05:00
pstore
qnx4
qnx6
quota
ramfs
reiserfs	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
romfs
squashfs
sysfs	driver core patches for 3.20-rc1	2015-02-15 11:11:47 -08:00
sysv
ubifs	Merge branch 'for-linus-v3.20' of git://git.infradead.org/linux-ubifs	2015-02-15 10:11:39 -08:00
udf
ufs	fs/ufs/super.c: fix potential race condition	2015-02-17 14:34:51 -08:00
xfs	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-22 17:42:14 -08:00
aio.c	fs/aio.c: Remove duplicate function name in pr_debug messages	2015-02-20 04:56:44 -05:00
anon_inodes.c
attr.c
bad_inode.c	don't bother with most of the bad_file_ops methods	2015-02-20 04:03:58 -05:00
binfmt_aout.c
binfmt_elf.c	x86, mm/ASLR: Fix stack randomization on 64-bit systems	2015-02-19 12:21:36 +01:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c
buffer.c
char_dev.c
compat.c
compat_binfmt_elf.c
compat_ioctl.c
coredump.c	coredump: Fix typo in comment	2015-02-20 04:56:44 -05:00
dax.c	dax: add dax_zero_page_range	2015-02-16 17:56:04 -08:00
dcache.c	VFS: Split DCACHE_FILE_TYPE into regular and special types	2015-02-22 11:38:38 -05:00
dcookies.c
direct-io.c
drop_caches.c	vmscan: per memory cgroup slab shrinkers	2015-02-12 18:54:09 -08:00
eventfd.c	eventfd: don't take the spinlock in eventfd_poll	2015-02-17 14:34:52 -08:00
eventpoll.c	epoll: optimize setting task running after blocking	2015-02-13 21:21:40 -08:00
exec.c
fcntl.c
fhandle.c
file.c
file_table.c
filesystems.c
fs-writeback.c	trylock_super(): replacement for grab_super_passive()	2015-02-22 11:38:42 -05:00
fs_pin.c
fs_struct.c
inode.c	Merge branch 'lazytime' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-17 16:12:34 -08:00
internal.h	trylock_super(): replacement for grab_super_passive()	2015-02-22 11:38:42 -05:00
ioctl.c
Kconfig	dax: does not work correctly with virtual aliasing caches	2015-02-16 17:56:04 -08:00
Kconfig.binfmt	fs/binfmt_som: Drop kernel support for HP-UX SOM binaries	2015-02-17 16:29:36 +01:00
libfs.c	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
locks.c	locks: fix list insertion when lock is split in two	2015-02-17 17:08:23 -05:00
Makefile	Merge branch 'parisc-3.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2015-02-17 14:25:58 -08:00
mbcache.c
mount.h
mpage.c
namei.c	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
namespace.c	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
no-block.c
nsfs.c
open.c	Merge branch 'getname2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-17 15:27:47 -08:00
pipe.c
pnode.c
pnode.h
posix_acl.c	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
proc_namespace.c
read_write.c	Merge branch 'iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-17 15:48:33 -08:00
readdir.c
select.c	all arches, signal: move restart_block to struct task_struct	2015-02-12 18:54:12 -08:00
seq_file.c	bitmap, cpumask, nodemask: remove dedicated formatting functions	2015-02-13 21:21:39 -08:00
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c	trylock_super(): replacement for grab_super_passive()	2015-02-22 11:38:42 -05:00
sync.c
timerfd.c
utimes.c
xattr.c