Alexey Gladkov 9d78edeaec proc: proc_pid_ns takes super_block as an argument ... syzbot found that touch /proc/testfile causes NULL pointer dereference at tomoyo_get_local_path() because inode of the dentry is NULL. Before c59f415a7c, Tomoyo received pid_ns from proc's s_fs_info directly. Since proc_pid_ns() can only work with inode, using it in the tomoyo_get_local_path() was wrong. To avoid creating more functions for getting proc_ns, change the argument type of the proc_pid_ns() function. Then, Tomoyo can use the existing super_block to get pid_ns. Link: https://lkml.kernel.org/r/0000000000002f0c7505a5b0e04c@google.com Link: https://lkml.kernel.org/r/20200518180738.2939611-1-gladkov.alexey@gmail.com Reported-by: syzbot+c1af344512918c61362c@syzkaller.appspotmail.com Fixes: c59f415a7c ("Use proc_pid_ns() to get pid_namespace from the proc superblock") Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>		2020-05-19 07:07:50 -05:00
..
9p	9p: read only once on O_NONBLOCK	2020-03-27 09:29:56 +00:00
adfs	fs/adfs: bigdir: Fix an error code in adfs_fplus_read()	2020-01-25 11:31:59 -05:00
affs	affs: fix a memory leak in affs_remount	2019-11-18 14:26:43 +01:00
afs	afs: Fix unpinned address list during probing	2020-03-26 16:04:29 -07:00
autofs	LOOKUP_MOUNTPOINT: fold path_mountpointat() into path_lookupat()	2020-03-13 21:08:17 -04:00
befs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
bfs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
btrfs	btrfs: fix missing semaphore unlock in btrfs_sync_file	2020-03-25 16:29:16 +01:00
cachefiles	cachefiles: drop direct usage of ->bmap method.	2020-02-03 08:05:56 -05:00
ceph	ceph: fix snapshot directory timestamps	2020-03-30 12:42:43 +02:00
cifs	smb3: enable swap on SMB3 mounts	2020-04-10 13:32:32 -05:00
coda	y2038: add inode timestamp clamping	2019-09-19 09:42:37 -07:00
configfs	utimes: Clamp the timestamps in notify_change()	2019-12-08 19:10:50 -05:00
cramfs	cramfs: switch to use of errofc() et.al.	2020-02-07 14:48:41 -05:00
crypto	fscrypt updates for 5.7	2020-03-31 12:58:36 -07:00
debugfs	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-04-01 14:47:40 -07:00
devpts	devpts_pty_kill(): don't bother with d_delete()	2019-09-03 09:30:56 -04:00
dlm	dlm: use SO_SNDTIMEO_NEW instead of SO_SNDTIMEO_OLD	2019-12-18 18:07:31 +01:00
ecryptfs	eCryptfs fixes for 5.6-rc3	2020-02-17 21:08:37 -08:00
efivarfs	efi: Use more granular check for availability for variable services	2020-02-23 21:59:42 +01:00
efs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
erofs	erofs: handle corrupted images whose decompressed size less than it'd be	2020-03-03 23:40:52 +08:00
exfat	exfat: update file system parameter handling	2020-03-05 21:00:40 -05:00
exportfs	race in exportfs_decode_fh()	2019-11-11 09:21:59 -05:00
ext2	ext2: fix empty body warnings when -Wextra is used	2020-03-23 13:01:37 +01:00
ext4	1) Replace ext4's bmap and iopoll implementations to use iomap.	2020-04-05 10:54:03 -07:00
f2fs	f2fs-for-5.7-rc1	2020-04-07 13:48:26 -07:00
fat	fat: fix uninit-memory access for partial initialized inode	2020-03-06 07:06:09 -06:00
freevxfs	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
fscache	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
fuse	fuse: fix stack use after return	2020-02-13 09:16:07 +01:00
gfs2	We've got a lot of patches (39) for this merge window. Most of these patches	2020-03-31 14:16:03 -07:00
hfs	hfs/hfsplus: use 64-bit inode timestamps	2019-12-18 18:07:32 +01:00
hfsplus	hfsplus: fix crash and filesystem corruption when deleting files	2020-04-10 15:36:20 -07:00
hostfs	hostfs: Use kasprintf() instead of fixed buffer formatting	2020-03-29 23:23:00 +02:00
hpfs	fs: compat_ioctl: move FITRIM emulation into file systems	2019-10-23 17:23:46 +02:00
hugetlbfs	hugetlbfs: Use i_mmap_rwsem to address page fault/truncate race	2020-04-02 09:35:32 -07:00
iomap	Bug fixes for 5.7:	2020-04-08 21:37:18 -07:00
isofs	y2038: add inode timestamp clamping	2019-09-19 09:42:37 -07:00
jbd2	jbd2: improve comments about freeing data buffers whose page mapping is NULL	2020-03-05 20:25:05 -05:00
jffs2	fs_parse: fold fs_parameter_desc/fs_parameter_spec	2020-02-07 14:48:37 -05:00
jfs	Trivial cleanup for jfs	2020-02-05 05:28:20 +00:00
kernfs	kernfs: Add option to enable user xattrs	2020-03-16 15:53:47 -04:00
lockd	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
minix	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
nfs	NFS client bugfix for Linux 5.7	2020-04-12 09:39:47 -07:00
nfs_common	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
nfsd	nfsd: fsnotify on rmdir under nfsd/clients/	2020-03-19 11:33:42 -04:00
nilfs2	fs: compat_ioctl: move FITRIM emulation into file systems	2019-10-23 17:23:46 +02:00
nls	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
notify	fanotify: Fix the checks in fanotify_fsid_equal	2020-03-30 12:40:53 +02:00
ntfs	fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t	2020-03-28 13:21:08 +01:00
ocfs2	ocfs2: no need try to truncate file beyond i_size	2020-04-10 15:36:21 -07:00
omfs	fs: omfs: Initialize filesystem timestamp ranges	2019-08-30 08:11:25 -07:00
openpromfs	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
orangefs	orangefs: don't mess with I_DIRTY_TIMES in orangefs_flush	2020-04-08 09:39:11 -04:00
overlayfs	ovl: enable xino automatically in more cases	2020-03-27 16:51:02 +01:00
proc	proc: proc_pid_ns takes super_block as an argument	2020-05-19 07:07:50 -05:00
pstore	pstore/ram: Replace zero-length array with flexible-array member	2020-03-09 14:45:40 -07:00
qnx4	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
qnx6	fs: Fill in max and min timestamps in superblock	2019-08-30 07:27:17 -07:00
quota	\n	2020-01-30 15:37:41 -08:00
ramfs	fs_parse: fold fs_parameter_desc/fs_parameter_spec	2020-02-07 14:48:37 -05:00
reiserfs	reiserfs: clean up several indentation issues	2020-04-07 10:43:44 -07:00
romfs	Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-19 10:06:57 -07:00
squashfs	Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-09-19 10:06:57 -07:00
sysfs	sysfs: remove redundant __compat_only_sysfs_link_entry_to_kobj fn	2020-04-05 11:34:35 -07:00
sysv	fs: sysv: Initialize filesystem timestamp ranges	2019-08-30 07:27:18 -07:00
tracefs	simple_recursive_removal(): kernel-side rm -rf for ramfs-style filesystems	2019-12-10 22:29:58 -05:00
ubifs	This pull request contains fixes for UBI and UBIFS:	2020-04-07 12:40:56 -07:00
udf	change email address for Pali Rohár	2020-04-10 15:36:22 -07:00
ufs	y2038: add inode timestamp clamping	2019-09-19 09:42:37 -07:00
unicode	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
vboxsf	fs: Add VirtualBox guest shared folder (vboxsf) support	2020-02-08 17:34:58 -05:00
verity	fs-verity: use u64_to_user_ptr()	2020-01-14 13:28:28 -08:00
xfs	xfs: reflink should force the log out if mounted with wsync	2020-04-06 08:44:39 -07:00
zonefs	zonfs: Fix handling of read-only zones	2020-03-25 11:28:26 +09:00
aio.c	aio: prevent potential eventfd recursion on poll	2020-02-03 17:27:47 -07:00
anon_inodes.c	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
attr.c	utimes: Clamp the timestamps in notify_change()	2019-12-08 19:10:50 -05:00
bad_inode.c
binfmt_aout.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
binfmt_elf_fdpic.c	y2038: elfcore: Use __kernel_old_timeval for process times	2019-11-15 14:38:29 +01:00
binfmt_elf.c	fs/binfmt_elf.c: don't free interpreter's ELF pheaders on common path	2020-04-07 10:43:44 -07:00
binfmt_em86.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
binfmt_flat.c	fs/binfmt_flat.c: remove set but not used variable 'inode'	2019-07-16 19:23:22 -07:00
binfmt_misc.c	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
binfmt_script.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
block_dev.c	New code for 5.7:	2020-04-02 12:59:36 -07:00
buffer.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-03-30 16:17:15 -07:00
char_dev.c	chardev: Avoid potential use-after-free in 'chrdev_open()'	2020-01-06 20:10:26 +01:00
compat_binfmt_elf.c	y2038: elfcore: Use __kernel_old_timeval for process times	2019-11-15 14:38:29 +01:00
compat.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
coredump.c	pipe: use exclusive waits when reading or writing	2020-02-08 11:39:19 -08:00
d_path.c	[PATCH] fix d_absolute_path() interplay with fsmount()	2019-08-30 19:31:09 -04:00
dax.c	dax,iomap: Add helper dax_iomap_zero() to zero a range	2020-04-02 19:15:03 -07:00
dcache.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-12-08 11:08:28 -08:00
dcookies.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
direct-io.c	fs/direct-io.c: include fs/internal.h for missing prototype	2020-01-04 13:55:09 -08:00
drop_caches.c	fs: avoid softlockups in s_inodes iterators	2019-12-18 00:03:01 -05:00
eventfd.c	eventfd: track eventfd_signal() recursion depth	2020-02-03 17:27:38 -07:00
eventpoll.c	fs/epoll: make nesting accounting safe for -rt kernel	2020-04-07 10:43:44 -07:00
exec.c	exec: Remove BUG_ON(has_group_leader_pid)	2020-04-28 16:50:07 -05:00
fcntl.c	fcntl: Distribute switch variables for initialization	2020-03-03 10:55:06 -05:00
fhandle.c	fs/handle.c - fix up kerneldoc	2019-08-07 21:51:47 -04:00
file_table.c	vfs: Export flush_delayed_fput for use by knfsd.	2019-08-19 11:00:39 -04:00
file.c	io_uring: make sure openat/openat2 honor rlimit nofile	2020-03-20 08:47:27 -06:00
filesystems.c	fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()	2020-04-10 15:36:22 -07:00
fs_context.c	add prefix to fs_context->log	2020-02-07 14:48:35 -05:00
fs_parser.c	fs_parse: remove pr_notice() about each validation	2020-04-02 09:35:26 -07:00
fs_pin.c	switch the remnants of releasing the mountpoint away from fs_pin	2019-07-16 22:52:37 -04:00
fs_struct.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
fs_types.c
fs-writeback.c	memcg: fix a crash in wb_workfn when a device disappears	2020-01-31 10:30:36 -08:00
fsopen.c	add prefix to fs_context->log	2020-02-07 14:48:35 -05:00
inode.c	futex: Fix inode life-time issue	2020-03-06 11:06:15 +01:00
internal.h	Merge branch 'work.dotdot1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-04-02 12:30:08 -07:00
io_uring.c	io_uring: punt final io_ring_ctx wait-and-free to workqueue	2020-04-09 18:45:27 -06:00
io-wq.c	io_uring: use io-wq manager as backup task if task is exiting	2020-04-03 11:35:57 -06:00
io-wq.h	io_uring: use io-wq manager as backup task if task is exiting	2020-04-03 11:35:57 -06:00
ioctl.c	compat-ioctl fix for v5.6	2020-02-08 13:44:41 -08:00
Kconfig	exfat: add Kconfig and Makefile	2020-03-05 21:00:40 -05:00
Kconfig.binfmt	binfmt_flat: make support for old format binaries optional	2019-06-24 09:16:47 +10:00
libfs.c	libfs: fix infoleak in simple_attr_read()	2020-03-24 13:27:16 +01:00
locks.c	proc: proc_pid_ns takes super_block as an argument	2020-05-19 07:07:50 -05:00
Makefile	exfat: add Kconfig and Makefile	2020-03-05 21:00:40 -05:00
mbcache.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
mount.h	switch the remnants of releasing the mountpoint away from fs_pin	2019-07-16 22:52:37 -04:00
mpage.c	fs: move guard_bio_eod() after bio_set_op_attrs	2020-01-09 08:16:12 -07:00
namei.c	fix a braino in legitimize_path()	2020-04-06 10:38:59 -04:00
namespace.c	LOOKUP_MOUNTPOINT: fold path_mountpointat() into path_lookupat()	2020-03-13 21:08:17 -04:00
no-block.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
nsfs.c	fs/nsfs.c: Added ns_match	2020-03-12 17:33:11 -07:00
open.c	Merge branch 'work.dotdot1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-04-02 12:30:08 -07:00
pipe.c	mm: kmem: rename memcg_kmem_(un)charge() into memcg_kmem_(un)charge_page()	2020-04-02 09:35:28 -07:00
pnode.c	fs/namespace: fix unprivileged mount propagation	2019-06-17 17:36:09 -04:00
pnode.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209	2019-05-30 11:29:53 -07:00
posix_acl.c	fs/posix_acl.c: fix kernel-doc warnings	2020-01-04 13:55:09 -08:00
proc_namespace.c	proc: rename struct proc_fs_info to proc_fs_opts	2020-04-22 10:51:21 -05:00
read_write.c	powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro	2020-04-03 00:09:59 +11:00
readdir.c	readdir: make user_access_begin() use the real access range	2020-01-23 10:15:28 -08:00
select.c	y2038: syscalls: change remaining timeval to __kernel_old_timeval	2019-11-15 14:38:29 +01:00
seq_file.c	fs/seq_file.c: seq_read(): add info message about buggy .next functions	2020-04-10 15:36:22 -07:00
signalfd.c
splice.c	splice: make do_splice public	2020-03-02 14:04:31 -07:00
stack.c	sched/rt, fs: Use CONFIG_PREEMPTION	2019-12-08 14:37:36 +01:00
stat.c	fs: make two stat prep helpers available	2020-01-20 17:03:54 -07:00
statfs.c	vfs: Fix EOVERFLOW testing in put_compat_statfs64	2019-10-03 14:21:35 -07:00
super.c	fs: call fsnotify_sb_delete after evict_inodes	2019-12-18 00:03:01 -05:00
sync.c
timerfd.c	timerfd: Make timerfd_settime() time namespace aware	2020-01-14 12:20:53 +01:00
userfaultfd.c	userfaultfd: wp: declare _UFFDIO_WRITEPROTECT conditionally	2020-04-07 10:43:40 -07:00
utimes.c	utimes: Clamp the timestamps in notify_change()	2019-12-08 19:10:50 -05:00
xattr.c	kernfs: Add removed_size out param for simple_xattr_set	2020-03-16 15:53:47 -04:00