NeilBrown bda0be7ad9 security: make inode_follow_link RCU-walk aware ... inode_follow_link now takes an inode and rcu flag as well as the dentry. inode is used in preference to d_backing_inode(dentry), particularly in RCU-walk mode. selinux_inode_follow_link() gets dentry_has_perm() and inode_has_perm() open-coded into it so that it can call avc_has_perm_flags() in way that is safe if LOOKUP_RCU is set. Calling avc_has_perm_flags() with rcu_read_lock() held means that when avc_has_perm_noaudit calls avc_compute_av(), the attempt to rcu_read_unlock() before calling security_compute_av() will not actually drop the RCU read-lock. However as security_compute_av() is completely in a read_lock()ed region, it should be safe with the RCU read-lock held. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2015-05-11 08:13:11 -04:00
..
9p	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
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	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
befs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
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	2015-05-08 20:59:02 -07:00
cachefiles	VFS: fs/cachefiles: d_backing_inode() annotations	2015-04-15 15:06:59 -04:00
ceph	ceph: switch to simple_follow_link()	2015-05-10 22:18:28 -04:00
cifs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
coda	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
configfs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
cramfs	…
debugfs	debugfs: switch to simple_follow_link()	2015-05-10 22:18:24 -04:00
devpts	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
dlm	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
ecryptfs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -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	exofs: switch to {simple,page}_symlink_inode_operations	2015-05-10 22:18:27 -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	ext2: use simple_follow_link()	2015-05-10 22:18:21 -04:00
ext3	ext3: switch to simple_follow_link()	2015-05-10 22:18:22 -04:00
ext4	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
f2fs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
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	freevxfs: switch to simple_follow_link()	2015-05-10 22:18:27 -04:00
fscache	fs/fscache/object-list.c: use __seq_open_private()	2014-10-13 17:52:21 +01:00
fuse	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
gfs2	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
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	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
hpfs	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
hppfs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -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	jbd: Deletion of an unnecessary check before the function call "iput"	2014-11-18 10:15:29 +01:00
jbd2	jbd2: complain about descriptor block checksum errors	2015-01-19 15:59:58 -05:00
jffs2	jffs2: switch to simple_follow_link()	2015-05-10 22:18:23 -04:00
jfs	jfs: switch to simple_follow_link()	2015-05-10 22:18:26 -04:00
kernfs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
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	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	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
nfs_common	…
nfsd	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-04-26 17:22:07 -07:00
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	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
openpromfs	…
overlayfs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
proc	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
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	sysv: switch to simple_follow_link()	2015-05-10 22:18:26 -04:00
tracefs	tracing: Have mkdir and rmdir be part of tracefs	2015-02-03 12:48:43 -05:00
ubifs	ubifs: switch to simple_follow_link()	2015-05-10 22:18:25 -04:00
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	ufs: switch to simple_follow_link()	2015-05-10 22:18:25 -04:00
xfs	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
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	assorted conversions to %p[dD]	2014-11-19 13:01:20 -05:00
binfmt_elf.c	mm: fold arch_randomize_brk into ARCH_HAS_ELF_RANDOMIZE	2015-04-14 16:49:05 -07:00
binfmt_elf_fdpic.c	handle suicide on late failure exits in execve() in search_binary_handler()	2014-10-09 02:39:00 -04:00
binfmt_em86.c	syscalls: implement execveat() system call	2014-12-13 12:42:51 -08:00
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	syscalls: implement execveat() system call	2014-12-13 12:42:51 -08:00
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	fs: introduce f_op->mmap_capabilities for nommu mmap support	2015-01-20 14:02:58 -07:00
compat.c	vfs: make first argument of dir_context.actor typed	2014-10-31 17:48:54 -04:00
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	VFS: Impose ordering on accesses of d_inode and d_flags	2015-04-15 15:05:28 -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	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	fs: take i_mutex during prepare_binprm for set[ug]id executables	2015-04-19 13:46:21 -07:00
fcntl.c	vfs: renumber FMODE_NONOTIFY and add to uniqueness check	2015-01-08 15:10:52 -08:00
fhandle.c	…
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	libfs: simple_follow_link()	2015-05-10 22:18:20 -04:00
internal.h	trylock_super(): replacement for grab_super_passive()	2015-02-22 11:38:42 -05:00
ioctl.c	fsioctl.c: make generic_block_fiemap() signal-tolerant	2015-02-10 14:30:30 -08:00
libfs.c	don't pass nameidata to ->follow_link()	2015-05-10 22:20:15 -04:00
locks.c	proc: show locks in /proc/pid/fdinfo/X	2015-04-17 09:04:12 -04:00
mbcache.c	…
mount.h	switch the IO-triggering parts of umount to fs_pin	2015-01-25 23:17:29 -05:00
mpage.c	vfs: guard end of device for mpage interface	2014-10-09 22:25:53 -04:00
namei.c	security: make inode_follow_link RCU-walk aware	2015-05-11 08:13:11 -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	VFS: Handle lower layer dentry/inode in pathwalk	2015-05-11 08:13:10 -04:00
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	vfs: add support for a lazytime mount option	2015-02-05 02:45:00 -05:00
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	vfs: make first argument of dir_context.actor typed	2014-10-31 17:48:54 -04:00
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	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
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	vfs: add support for a lazytime mount option	2015-02-05 02:45:00 -05:00
timerfd.c	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
utimes.c	…
xattr.c	new helper: audit_file()	2014-11-19 13:01:26 -05:00