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Luca Stefani 1146f7e2dc ntfs: fix ntfs_test_inode and ntfs_init_locked_inode function type 
Clang's Control Flow Integrity (CFI) is a security mechanism that can help
prevent JOP chains, deployed extensively in downstream kernels used in
Android.

Its deployment is hindered by mismatches in function signatures.  For this
case, we make callbacks match their intended function signature, and cast
parameters within them rather than casting the callback when passed as a
parameter.

When running `mount -t ntfs ...` we observe the following trace:

Call trace:
__cfi_check_fail+0x1c/0x24
name_to_dev_t+0x0/0x404
iget5_locked+0x594/0x5e8
ntfs_fill_super+0xbfc/0x43ec
mount_bdev+0x30c/0x3cc
ntfs_mount+0x18/0x24
mount_fs+0x1b0/0x380
vfs_kern_mount+0x90/0x398
do_mount+0x5d8/0x1a10
SyS_mount+0x108/0x144
el0_svc_naked+0x34/0x38

Signed-off-by: Luca Stefani <luca.stefani.ge1@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: freak07 <michalechner92@googlemail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Anton Altaparmakov <anton@tuxera.com>
Link: http://lkml.kernel.org/r/20200718112513.533800-1-luca.stefani.ge1@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-07 11:33:21 -07:00
..
9p 9p: read only once on O_NONBLOCK 2020-03-27 09:29:56 +00:00
adfs block: move struct block_device to blk_types.h 2020-06-24 09:16:02 -06:00
affs block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
afs Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
autofs autofs: switch to kernel_write 2020-07-08 08:27:56 +02:00
befs block: move struct block_device to blk_types.h 2020-06-24 09:16:02 -06:00
bfs docs: filesystems: fix renamed references 2020-04-20 15:45:22 -06:00
btrfs These are the latest RCU bits for v5.9: 2020-08-03 14:31:33 -07:00
cachefiles cachefiles: switch to kernel_write 2020-07-08 08:27:56 +02:00
ceph ceph: skip checking caps when session reconnecting and releasing reqs 2020-06-01 13:22:53 +02:00
cifs It's been a busy cycle for documentation - hopefully the busiest for a 2020-08-04 22:47:54 -07:00
coda docs: filesystems: convert coda.txt to ReST 2020-05-05 09:22:21 -06:00
configfs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
cramfs docs: filesystems: fix renamed references 2020-04-20 15:45:22 -06:00
crypto fscrypt: don't load ->i_crypt_info before it's known to be valid 2020-07-30 14:21:50 -07:00
debugfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
devpts
dlm treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
ecryptfs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
efivarfs efi/efivars: Expose RT service availability via efivars abstraction 2020-07-09 10:14:29 +03:00
efs block: move struct block_device to blk_types.h 2020-06-24 09:16:02 -06:00
erofs treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
exfat exfat: fix name_hash computation on big endian systems 2020-07-21 10:44:19 +09:00
exportfs
ext2 mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
ext4 ext4: add inline encryption support 2020-07-08 10:29:43 -07:00
f2fs Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
fat treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
freevxfs
fscache Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
fuse Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
gfs2 Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
hfs block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
hfsplus treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
hostfs hostfs: Use kasprintf() instead of fixed buffer formatting 2020-03-29 23:23:00 +02:00
hpfs hpfs: fix warning due to superfluous semicolon 2020-06-06 10:08:17 -07:00
hugetlbfs mmap locking API: convert mmap_sem API comments 2020-06-09 09:39:14 -07:00
iomap New code for 5.8: 2020-06-13 12:44:30 -07:00
isofs Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
jbd2 This is the second round of ext4 commits for 5.8 merge window. It 2020-06-15 09:32:10 -07:00
jffs2 treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
jfs block: move struct block_device to blk_types.h 2020-06-24 09:16:02 -06:00
kernfs mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
lockd
minix
nfs Merge branches 'pm-sleep', 'pm-domains', 'powercap' and 'pm-tools' 2020-08-03 13:12:44 +02:00
nfs_common
nfsd Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
nilfs2 nilfs2: fix null pointer dereference at nilfs_segctor_do_construct() 2020-06-10 19:14:17 -07:00
nls treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
notify treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ntfs ntfs: fix ntfs_test_inode and ntfs_init_locked_inode function type 2020-08-07 11:33:21 -07:00
ocfs2 treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
omfs treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
openpromfs
orangefs orangefs: a conversion and a cleanup... 2020-06-05 16:44:36 -07:00
overlayfs Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
proc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
pstore pstore: Fix linking when crypto API disabled 2020-07-06 19:42:31 -07:00
qnx4
qnx6 fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
quota block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
ramfs
reiserfs block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
romfs treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
squashfs squashfs: fix length field overlap check in metadata reading 2020-07-24 12:42:41 -07:00
sysfs RDMA 5.8 merge window pull request 2020-06-05 14:05:57 -07:00
sysv docs: filesystems: fix renamed references 2020-04-20 15:45:22 -06:00
tracefs
ubifs treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
udf treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
ufs
unicode .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
vboxsf vboxsf: don't use the source name in the bdi name 2020-05-07 08:45:47 -06:00
verity fs-verity: use smp_load_acquire() for ->i_verity_info 2020-07-21 16:02:41 -07:00
xfs Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
zonefs zonefs: count pages after truncating the iterator 2020-07-20 17:59:31 +09:00
aio.c aio: Replace zero-length array with flexible-array 2020-06-15 23:08:25 -05:00
anon_inodes.c
attr.c
bad_inode.c fs: move the fiemap definitions out of fs.h 2020-06-03 23:16:55 -04:00
binfmt_aout.c exec: Rename flush_old_exec begin_new_exec 2020-05-07 16:55:47 -05:00
binfmt_elf.c Merge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:02:54 -07:00
binfmt_elf_fdpic.c Merge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:02:54 -07:00
binfmt_em86.c Merge branch 'akpm' (patches from Andrew) 2020-06-04 19:18:29 -07:00
binfmt_flat.c Merge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:02:54 -07:00
binfmt_misc.c Merge branch 'akpm' (patches from Andrew) 2020-06-04 19:18:29 -07:00
binfmt_script.c Merge branch 'akpm' (patches from Andrew) 2020-06-04 19:18:29 -07:00
block_dev.c for-5.9/io_uring-20200802 2020-08-03 13:01:22 -07:00
buffer.c for-5.9/block-20200802 2020-08-03 11:57:03 -07:00
char_dev.c vfs: allow unprivileged whiteout creation 2020-05-14 16:44:23 +02:00
compat.c
compat_binfmt_elf.c Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK 2020-06-05 13:45:21 -07:00
coredump.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
d_path.c
dax.c dax,iomap: Add helper dax_iomap_zero() to zero a range 2020-04-02 19:15:03 -07:00
dcache.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
dcookies.c
direct-io.c block: remove the bd_queue field from struct block_device 2020-07-01 08:08:20 -06:00
drop_caches.c sysctl: pass kernel pointers to ->proc_handler 2020-04-27 02:07:40 -04:00
eventfd.c eventfd: convert to f_op->read_iter() 2020-05-06 22:33:43 -04:00
eventpoll.c epoll: call final ep_events_available() check under the lock 2020-05-14 10:00:35 -07:00
exec.c exec: Implement kernel_execve 2020-07-21 08:24:52 -05:00
fcntl.c
fhandle.c
file.c close-range-v5.9 2020-08-04 15:12:02 -07:00
file_table.c Revert "fs: Do not check if there is a fsnotify watcher on pseudo inodes" 2020-06-29 09:40:55 -07:00
filesystems.c fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once() 2020-04-10 15:36:22 -07:00
fs-writeback.c A lot of bug fixes and cleanups for ext4, including: 2020-06-05 16:19:28 -07:00
fs_context.c vfs: don't parse "silent" option 2020-05-14 16:44:25 +02:00
fs_parser.c fs_parse: remove pr_notice() about each validation 2020-04-02 09:35:26 -07:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c AFS Changes 2020-06-05 16:26:36 -07:00
internal.h block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
io-wq.c io-wq: update hash bits 2020-07-25 09:47:44 -06:00
io-wq.h io_uring/io-wq: move RLIMIT_FSIZE to io-wq 2020-07-24 13:00:44 -06:00
io_uring.c for-5.9/io_uring-20200802 2020-08-03 13:01:22 -07:00
ioctl.c fs: remove the access_ok() check in ioctl_fiemap 2020-06-03 23:16:55 -04:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Kconfig.binfmt treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
libfs.c block: remove the error_sector argument to blkdev_issue_flush 2020-05-22 08:45:46 -06:00
locks.c File locking fix for v5.9. 2020-08-03 10:46:41 -07:00
Makefile
mbcache.c
mount.h proc/mounts: add cursor 2020-05-14 16:44:24 +02:00
mpage.c fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
namei.c vfs: clean up posix_acl_permission() logic aroudn MAY_NOT_BLOCK 2020-06-08 11:04:19 -07:00
namespace.c fuse: reject options on reconfigure via fsconfig(2) 2020-07-14 14:45:41 +02:00
no-block.c
nsfs.c nsproxy: attach to namespaces via pidfds 2020-05-13 11:41:22 +02:00
open.c close_range: add CLOSE_RANGE_UNSHARE 2020-06-17 00:07:38 +02:00
pipe.c Notifications over pipes + Keyring notifications 2020-06-13 09:56:21 -07:00
pnode.c propagate_one(): mnt_set_mountpoint() needs mount_lock 2020-04-27 10:37:14 -04:00
pnode.h
posix_acl.c vfs: clean up posix_acl_permission() logic aroudn MAY_NOT_BLOCK 2020-06-08 11:04:19 -07:00
proc_namespace.c Merge branch 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-06-04 13:54:34 -07:00
read_write.c fs: remove __vfs_read 2020-07-08 08:27:57 +02:00
readdir.c readdir.c: get rid of the last __put_user(), drop now-useless access_ok() 2020-05-01 20:29:54 -04:00
select.c pselect6() and friends: take handling the combined 6th/7th args into helper 2020-05-29 19:10:42 -04:00
seq_file.c fs/seq_file.c: seq_read: Update pr_info_ratelimited 2020-06-04 19:06:25 -07:00
signalfd.c
splice.c Notifications over pipes + Keyring notifications 2020-06-13 09:56:21 -07:00
stack.c
stat.c New code for 5.8: 2020-06-02 19:45:12 -07:00
statfs.c
super.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:09:11 -07:00
sync.c overlayfs update for 5.8 2020-06-09 15:40:50 -07:00
timerfd.c
userfaultfd.c userfaultfd: simplify fault handling 2020-08-03 11:25:16 -07:00
utimes.c utimensat: AT_EMPTY_PATH support 2020-05-14 16:44:24 +02:00
xattr.c xattr: fix uninitialized out-param 2020-04-09 15:33:09 -04:00