Josh Triplett 9ce71148b0 devpts: if initialization failed, don't crash when opening /dev/ptmx ...

If devpts failed to initialize, it would store an ERR_PTR in the global
devpts_mnt.  A subsequent open of /dev/ptmx would call devpts_new_index,
which would dereference devpts_mnt and crash.

Avoid storing invalid values in devpts_mnt; leave it NULL instead.  Make
both devpts_new_index and devpts_pty_new fail gracefully with ENODEV in
that case, which then becomes the return value to the userspace open call
on /dev/ptmx.

[[email protected]: remove unneeded static]
Signed-off-by: Josh Triplett <[email protected]>
Reported-by: Fengguang Wu <[email protected]>
Reviewed-by: Peter Hurley <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2015-06-30 19:44:58 -07:00

..

9p

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

adfs

fs/adfs: remove unneeded cast

2015-06-30 19:44:57 -07:00

affs

fs/affs/symlink.c: remove unneeded err variable

2015-06-30 19:44:57 -07:00

afs

net: Add a struct net parameter to sock_create_kern

2015-05-11 10:50:17 -04:00

autofs4

don't pass nameidata to ->follow_link()

2015-05-10 22:20:15 -04:00

befs

fs/befs/btree.c: remove unneeded initializations

2015-06-25 17:00:43 -07:00

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-4.2/core' of git://git.kernel.dk/linux-block

2015-06-25 14:29:53 -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

Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-06-22 12:51:21 -07:00

coda

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

configfs

configfs: unexport/make static config_item_init()

2015-06-24 17:49:39 -07:00

cramfs

…

debugfs

debugfs: switch to simple_follow_link()

2015-05-10 22:18:24 -04:00

devpts

devpts: if initialization failed, don't crash when opening /dev/ptmx

2015-06-30 19:44:58 -07:00

dlm

net: Add a struct net parameter to sock_create_kern

2015-05-11 10:50:17 -04:00

ecryptfs

get rid of assorted nameidata-related debris

2015-05-15 01:10:37 -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

fs/efs: femove unneeded cast

2015-06-25 17:00:42 -07:00

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

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

ext3

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2015-06-24 20:07:10 -07:00

ext4

Merge branch 'akpm' (patches from Andrew)

2015-06-26 09:52:05 -07:00

f2fs

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

fat

writeback: separate out include/linux/backing-dev-defs.h

2015-06-02 08:33:34 -06:00

freevxfs

freevxfs: switch to simple_follow_link()

2015-05-10 22:18:27 -04:00

fscache

…

fuse

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

gfs2

Merge tag 'gfs2-merge-window' of git://git.kernel.org:/pub/scm/linux/kernel/git/gfs2/linux-gfs2

2015-06-27 09:47:46 -07:00

hfs

writeback: separate out include/linux/backing-dev-defs.h

2015-06-02 08:33:34 -06:00

hfsplus

writeback: separate out include/linux/backing-dev-defs.h

2015-06-02 08:33:34 -06:00

hostfs

Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-06-22 12:51:21 -07:00

hpfs

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

hugetlbfs

mm/hugetlb: reduce arch dependent code about hugetlb_prefault_arch_hook

2015-06-24 17:49:41 -07:00

isofs

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

jbd

…

jbd2

Revert "jbd2: speedup jbd2_journal_dirty_metadata()"

2015-06-27 09:41:50 -07:00

jffs2

Merge tag 'for-linus-20150623' of git://git.infradead.org/linux-mtd

2015-06-23 17:38:39 -07:00

jfs

jfs: switch to simple_follow_link()

2015-05-10 22:18:26 -04:00

kernfs

Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2015-06-26 19:50:04 -07:00

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

fs/minix: remove unneeded cast

2015-06-25 17:00:42 -07:00

ncpfs

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

nfs

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

nfs_common

…

nfsd

nfsd: wrap too long lines in nfsd4_encode_read

2015-06-22 14:15:05 -04:00

nilfs2

Merge branch 'akpm' (patches from Andrew)

2015-06-26 09:52:05 -07:00

nls

…

notify

fanotify: fix event filtering with FAN_ONDIR set

2015-03-12 18:46:08 -07:00

ntfs

mm: do not ignore mapping_gfp_mask in page cache allocation paths

2015-06-24 17:49:44 -07:00

ocfs2

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

omfs

omfs: fix potential integer overflow in allocator

2015-05-28 18:25:19 -07:00

openpromfs

…

overlayfs

Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-06-22 12:51:21 -07:00

proc

fs, proc: introduce CONFIG_PROC_CHILDREN

2015-06-25 17:00:37 -07:00

pstore

ramoops: make it possible to change mem_type param.

2015-05-21 09:52:29 -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 'akpm' (patches from Andrew)

2015-06-26 09:52:05 -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

fs: sysfs: don't pass count == 0 to bin file readers

2015-06-01 10:17:17 +09:00

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

Merge tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifs

2015-06-25 14:11:34 -07:00

udf

udf: fix udf_load_pvoldesc()

2015-05-21 15:19:15 +02:00

ufs

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

xfs

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -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

…

binfmt_elf_fdpic.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_em86.c

…

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

…

block_dev.c

Merge tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm

2015-06-29 10:34:42 -07:00

buffer.c

buffer: remove unusued 'ret' variable

2015-06-02 09:22:34 -06:00

char_dev.c

fs: introduce f_op->mmap_capabilities for nommu mmap support

2015-01-20 14:02:58 -07:00

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

compat.c

…

coredump.c

coredump: add __printf attribute to cn_*printf functions

2015-06-25 17:00:43 -07:00

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

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-06-22 18:57:44 -07:00

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

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_table.c

->aio_read and ->aio_write removed

2015-04-11 22:29:43 -04:00

file.c

mm: rcu-protected get_mm_exe_file()

2015-04-17 09:04:07 -04:00

filesystems.c

…

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

…

fs-writeback.c

writeback: do foreign inode detection iff cgroup writeback is enabled

2015-06-17 12:47:37 -06:00

inode.c

Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block

2015-06-25 16:00:17 -07:00

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

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

libfs.c

new helper: free_page_put_link()

2015-05-11 08:13:13 -04:00

locks.c

proc: show locks in /proc/pid/fdinfo/X

2015-04-17 09:04:12 -04:00

Makefile

um: Remove hppfs

2015-05-31 13:23:08 +02:00

mbcache.c

…

mount.h

fs: use seq_open_private() for proc_mounts

2015-06-30 19:44:56 -07:00

mpage.c

writeback: implement foreign cgroup inode detection

2015-06-02 08:40:20 -06:00

namei.c

turn user_{path_at,path,lpath,path_dir}() into static inlines

2015-05-15 01:10:45 -04:00

namespace.c

fs: use seq_open_private() for proc_mounts

2015-06-30 19:44:56 -07:00

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

fs: use seq_open_private() for proc_mounts

2015-06-30 19:44:56 -07:00

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

…

select.c

locking/arch: Rename set_mb() to smp_store_mb()

2015-05-19 08:32:00 +02:00

seq_file.c

fs: document seq_open()'s usage of file->private_data

2015-06-30 19:44:57 -07:00

signalfd.c

…

splice.c

Merge branch 'akpm' (patches from Andrew)

2015-06-24 20:47:21 -07:00

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

…

utimes.c

…

xattr.c

evm: fix potential race when removing xattrs

2015-05-21 13:28:47 -04:00