linux/fs
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
..
9p
adfs
affs
afs
autofs4
befs
bfs
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
ceph
cifs CIFS: Fix race condition on RFC1002_NEGATIVE_SESSION_RESPONSE 2015-05-20 13:25:55 -05:00
coda
configfs configfs: init configfs module earlier at boot time 2015-05-05 17:10:11 -07:00
cramfs
debugfs
devpts
dlm
ecryptfs
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
exofs
exportfs
ext2
ext3
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
freevxfs
fscache
fuse
gfs2
hfs
hfsplus
hostfs hostfs: Use correct mask for file mode 2015-05-04 14:50:29 +02:00
hpfs
hppfs
hugetlbfs
isofs
jbd
jbd2 jbd2: fix r_count overflows leading to buffer overflow in journal recovery 2015-05-14 19:11:50 -04:00
jffs2
jfs
kernfs kernfs: do not account ino_ida allocations to memcg 2015-05-14 17:55:51 -07:00
lockd
logfs
minix
ncpfs
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
ntfs
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
pstore
qnx4
qnx6
quota
ramfs
reiserfs
romfs
squashfs
sysfs
sysv
tracefs
ubifs
udf
ufs
xfs xfs: fix broken i_nlink accounting for whiteout tmpfile inode 2015-05-29 08:14:55 +10:00
Kconfig
Kconfig.binfmt
Makefile
aio.c
anon_inodes.c
attr.c
bad_inode.c
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
binfmt_script.c
block_dev.c
buffer.c
char_dev.c
compat.c
compat_binfmt_elf.c
compat_ioctl.c
coredump.c
dax.c
dcache.c d_walk() might skip too much 2015-05-28 23:45:30 -04:00
dcookies.c
direct-io.c
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.c
file_table.c
filesystems.c
fs-writeback.c
fs_pin.c
fs_struct.c
inode.c
internal.h
ioctl.c
libfs.c
locks.c
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
open.c
pipe.c
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c
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
statfs.c
super.c
sync.c
timerfd.c
utimes.c
xattr.c