linux_dsm_epyc7002/fs
Alexey Gladkov 058f2e4da7 proc: s_fs_info may be NULL when proc_kill_sb is called
syzbot found that proc_fill_super() fails before filling up sb->s_fs_info,
deactivate_locked_super() will be called and sb->s_fs_info will be NULL.
The proc_kill_sb() does not expect fs_info to be NULL which is wrong.

Link: https://lore.kernel.org/lkml/0000000000002d7ca605a7b8b1c5@google.com
Reported-by: syzbot+4abac52934a48af5ff19@syzkaller.appspotmail.com
Fixes: fa10fed30f ("proc: allow to mount many instances of proc in one pid namespace")
Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2020-06-10 14:54:54 -05:00
..
9p
adfs
affs
afs
autofs
befs
bfs
btrfs
cachefiles
ceph
cifs smb3: enable swap on SMB3 mounts 2020-04-10 13:32:32 -05:00
coda
configfs
cramfs
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
dlm
ecryptfs
efivarfs
efs
erofs
exfat
exportfs
ext2
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
freevxfs
fscache
fuse
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
hfsplus hfsplus: fix crash and filesystem corruption when deleting files 2020-04-10 15:36:20 -07:00
hostfs
hpfs
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
jbd2
jffs2
jfs
kernfs
lockd
minix
nfs NFS client bugfix for Linux 5.7 2020-04-12 09:39:47 -07:00
nfs_common
nfsd
nilfs2
nls
notify
ntfs
ocfs2 ocfs2: no need try to truncate file beyond i_size 2020-04-10 15:36:21 -07:00
omfs
openpromfs
orangefs orangefs: don't mess with I_DIRTY_TIMES in orangefs_flush 2020-04-08 09:39:11 -04:00
overlayfs
proc proc: s_fs_info may be NULL when proc_kill_sb is called 2020-06-10 14:54:54 -05:00
pstore
qnx4
qnx6
quota
ramfs
reiserfs reiserfs: clean up several indentation issues 2020-04-07 10:43:44 -07:00
romfs
squashfs
sysfs sysfs: remove redundant __compat_only_sysfs_link_entry_to_kobj fn 2020-04-05 11:34:35 -07:00
sysv
tracefs
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
unicode
vboxsf
verity
xfs xfs: reflink should force the log out if mounted with wsync 2020-04-06 08:44:39 -07:00
zonefs
aio.c
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c
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
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
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
compat_binfmt_elf.c
compat.c
coredump.c
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
dcookies.c
direct-io.c
drop_caches.c
eventfd.c
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
fhandle.c
file_table.c
file.c
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
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
fs-writeback.c
fsopen.c
inode.c
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
Kconfig
Kconfig.binfmt
libfs.c
locks.c proc: proc_pid_ns takes super_block as an argument 2020-05-19 07:07:50 -05:00
Makefile
mbcache.c
mount.h
mpage.c
namei.c fix a braino in legitimize_path() 2020-04-06 10:38:59 -04:00
namespace.c
no-block.c
nsfs.c
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
pnode.h
posix_acl.c
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
select.c
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
stack.c
stat.c
statfs.c
super.c
sync.c
timerfd.c
userfaultfd.c userfaultfd: wp: declare _UFFDIO_WRITEPROTECT conditionally 2020-04-07 10:43:40 -07:00
utimes.c
xattr.c