Sasha Levin 161f873b89 vfs: read file_handle only once in handle_to_path ... We used to read file_handle twice. Once to get the amount of extra bytes, and once to fetch the entire structure. This may be problematic since we do size verifications only after the first read, so if the number of extra bytes changes in userspace between the first and second calls, we'll have an incoherent view of file_handle. Instead, read the constant size once, and copy that over to the final structure without having to re-read it again. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-06-02 10:29:07 -07:00
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9p	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
adfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
affs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
afs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
autofs4	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
befs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -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-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2015-05-23 11:14:10 -07:00
cachefiles	VFS: fs/cachefiles: d_backing_inode() annotations	2015-04-15 15:06:59 -04:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
cifs	CIFS: Fix race condition on RFC1002_NEGATIVE_SESSION_RESPONSE	2015-05-20 13:25:55 -05:00
coda	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
configfs	configfs: init configfs module earlier at boot time	2015-05-05 17:10:11 -07:00
cramfs	…
debugfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
devpts	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
dlm	…
ecryptfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
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	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
exofs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
exportfs	VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)	2015-02-22 11:38:41 -05:00
ext2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
ext3	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
ext4	ext4: fix an ext3 collapse range regression in xfstests	2015-05-15 00:24:10 -04:00
f2fs	f2fs: fix wrong error hanlder in f2fs_follow_link	2015-05-04 14:15:16 -07:00
fat	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
freevxfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
fscache	…
fuse	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
gfs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
hfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
hfsplus	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
hostfs	hostfs: Use correct mask for file mode	2015-05-04 14:50:29 +02:00
hpfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
hppfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
hugetlbfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
isofs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
jbd	…
jbd2	jbd2: fix r_count overflows leading to buffer overflow in journal recovery	2015-05-14 19:11:50 -04:00
jffs2	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
jfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
kernfs	kernfs: do not account ino_ida allocations to memcg	2015-05-14 17:55:51 -07:00
lockd	nfsd: eliminate NFSD_DEBUG	2015-04-21 16:16:02 -04:00
logfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
minix	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
ncpfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
nfs	nfs: take extra reference to fl->fl_file when running a setlk	2015-05-13 14:56:06 -04:00
nfs_common	…
nfsd	nfsd: skip CB_NULL probes for 4.1 or later	2015-05-04 12:02:42 -04:00
nilfs2	nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()	2015-05-05 17:10:11 -07:00
nls	…
notify	fanotify: fix event filtering with FAN_ONDIR set	2015-03-12 18:46:08 -07:00
ntfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
ocfs2	ocfs2: dlm: fix race between purge and get lock resource	2015-05-05 17:10:11 -07:00
omfs	omfs: fix potential integer overflow in allocator	2015-05-28 18:25:19 -07:00
openpromfs	…
overlayfs	ovl: mount read-only if workdir can't be created	2015-05-19 14:30:12 +02:00
proc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
pstore	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
qnx4	…
qnx6	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -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 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
romfs	make new_sync_{read,write}() static	2015-04-11 22:29:40 -04:00
squashfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
sysfs	sysfs: Only accept read/write permissions for file attributes	2015-03-25 13:27:57 +01:00
sysv	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
tracefs	…
ubifs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
udf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
ufs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
xfs	xfs: fix broken i_nlink accounting for whiteout tmpfile inode	2015-05-29 08:14:55 +10:00
Kconfig	f2fs: relocate Kconfig from misc filesystems	2015-04-10 15:08:35 -07:00
Kconfig.binfmt	mm: split ET_DYN ASLR from mmap ASLR	2015-04-14 16:49:05 -07:00
Makefile	This adds the new tracefs file system. This has been in linux-next for	2015-04-14 10:22:29 -07:00
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	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	fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings	2015-05-28 18:25:18 -07:00
binfmt_elf_fdpic.c	…
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	direct-io: only inc/dec inode->i_dio_count for file systems	2015-04-24 15:45:28 -04:00
buffer.c	page_writeback: clean up mess around cancel_dirty_page()	2015-04-14 16:49:01 -07:00
char_dev.c	…
compat.c	…
compat_binfmt_elf.c	…
compat_ioctl.c	Bluetooth: bnep: Add support for get bnep features via ioctl	2015-04-03 23:21:34 +02:00
coredump.c	coredump: accept any write method	2015-04-11 22:29:39 -04:00
dax.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
dcache.c	d_walk() might skip too much	2015-05-28 23:45:30 -04:00
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	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	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.c	mm: rcu-protected get_mm_exe_file()	2015-04-17 09:04:07 -04:00
file_table.c	->aio_read and ->aio_write removed	2015-04-11 22:29:43 -04:00
filesystems.c	…
fs-writeback.c	fs: add dirtytime_expire_seconds sysctl	2015-03-17 12:23:32 -04:00
fs_pin.c	fs_pin: Allow for the possibility that m_list or s_list go unused.	2015-04-09 11:39:55 -05:00
fs_struct.c	…
inode.c	direct-io: only inc/dec inode->i_dio_count for file systems	2015-04-24 15:45:28 -04:00
internal.h	trylock_super(): replacement for grab_super_passive()	2015-02-22 11:38:42 -05:00
ioctl.c	…
libfs.c	VFS: fs library helpers: d_inode() annotations	2015-04-15 15:06:58 -04:00
locks.c	proc: show locks in /proc/pid/fdinfo/X	2015-04-17 09:04:12 -04:00
mbcache.c	…
mount.h	…
mpage.c	…
namei.c	path_openat(): fix double fput()	2015-05-09 00:12:48 -04:00
namespace.c	mnt: Fix fs_fully_visible to verify the root directory is visible	2015-05-09 11:55:50 -05:00
no-block.c	…
nsfs.c	VFS: assorted weird filesystems: d_inode() annotations	2015-04-15 15:06:58 -04:00
open.c	xfs: update for 4.1-rc1	2015-04-24 07:08:41 -07:00
pipe.c	VFS: assorted weird filesystems: d_inode() annotations	2015-04-15 15:06:58 -04:00
pnode.c	mnt: Don't propagate unmounts to locked mounts	2015-04-02 20:34:20 -05:00
pnode.h	mnt: Honor MNT_LOCKED when detaching mounts	2015-04-09 11:39:55 -05:00
posix_acl.c	VFS: assorted d_backing_inode() annotations	2015-04-15 15:06:59 -04:00
proc_namespace.c	…
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	…
seq_file.c	…
signalfd.c	…
splice.c	splice: sendfile() at once fails for big files	2015-05-06 09:27:41 -06:00
stack.c	…
stat.c	VFS: assorted d_backing_inode() annotations	2015-04-15 15:06:59 -04:00
statfs.c	…
super.c	cleancache: remove limit on the number of cleancache enabled filesystems	2015-04-14 16:49:03 -07:00
sync.c	…
timerfd.c	…
utimes.c	…
xattr.c	…