Mike Rapoport 96333187ab userfaultfd_copy: return -ENOSPC in case mm has gone ...

In the non-cooperative userfaultfd case, the process exit may race with
outstanding mcopy_atomic called by the uffd monitor.  Returning -ENOSPC
instead of -EINVAL when mm is already gone will allow uffd monitor to
distinguish this case from other error conditions.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Acked-by: Hillf Danton <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: "Dr. David Alan Gilbert" <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Pavel Emelyanov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2017-02-24 17:46:55 -08:00

..

9p

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

adfs

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

2016-10-10 20:16:43 -07:00

affs

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

afs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2017-02-23 20:33:51 -08:00

autofs4

fs: Better permission checking for submounts

2017-02-02 04:36:12 +13:00

befs

befs: add NFS export support

2016-12-22 11:25:24 +00:00

bfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

btrfs

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

cachefiles

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

2016-10-10 20:16:43 -07:00

ceph

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

cifs

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

coda

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

configfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

cramfs

…

crypto

fscrypt: properly declare on-stack completion

2017-02-06 23:45:28 -05:00

debugfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2017-02-23 20:33:51 -08:00

devpts

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

2016-10-10 20:16:43 -07:00

dlm

ktime: Get rid of ktime_equal()

2016-12-25 17:21:23 +01:00

ecryptfs

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

efivarfs

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

2016-10-10 20:16:43 -07:00

efs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

exofs

locking/atomic, kref: Add kref_read()

2017-01-14 11:37:18 +01:00

exportfs

exportfs: be careful to only return expected errors.

2016-10-06 09:07:44 -04:00

ext2

mm: replace FAULT_FLAG_SIZE with parameter to huge_fault

2017-02-24 17:46:54 -08:00

ext4

mm: replace FAULT_FLAG_SIZE with parameter to huge_fault

2017-02-24 17:46:54 -08:00

f2fs

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

fat

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

2016-10-10 20:16:43 -07:00

freevxfs

…

fscache

fscache: Fix dead object requeue

2017-01-31 13:23:09 -05:00

fuse

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

gfs2

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

hfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

hfsplus

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

hostfs

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

hpfs

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

2016-10-10 20:16:43 -07:00

hugetlbfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

isofs

Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block

2016-12-13 10:19:16 -08:00

jbd2

Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2017-02-20 18:24:39 -08:00

jffs2

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

jfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

kernfs

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

lockd

netns: make struct pernet_operations::id unsigned int

2016-11-18 10:59:15 -05:00

minix

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

ncpfs

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

nfs

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

nfs_common

netns: make struct pernet_operations::id unsigned int

2016-11-18 10:59:15 -05:00

nfsd

Merge tag 'driver-core-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2017-02-22 11:44:32 -08:00

nilfs2

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

nls

…

notify

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2017-02-23 20:33:51 -08:00

ntfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ocfs2

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

omfs

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

2016-10-10 20:16:43 -07:00

openpromfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

orangefs

Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

2016-12-17 19:16:12 -08:00

overlayfs

ovl: fix possible use after free on redirect dir lookup

2017-01-18 15:19:54 +01:00

proc

userfaultfd: non-cooperative: add event for memory unmaps

2017-02-24 17:46:55 -08:00

pstore

pstore: Check for prz allocation in walker

2017-02-13 10:25:52 -08:00

qnx4

…

qnx6

…

quota

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

2016-12-19 08:23:53 -08:00

ramfs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

reiserfs

Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

2016-12-17 19:16:12 -08:00

romfs

romfs: use different way to generate fsid for BLOCK or MTD

2017-01-24 16:26:14 -08:00

squashfs

Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs

2016-12-17 19:16:12 -08:00

sysfs

Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2016-10-14 12:18:50 -07:00

sysv

vfs: remove ".readlink = generic_readlink" assignments

2016-12-09 16:45:04 +01:00

tracefs

…

ubifs

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

udf

udf: simplify udf_ioctl()

2017-02-03 16:24:18 +01:00

ufs

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

xfs

mm: replace FAULT_FLAG_SIZE with parameter to huge_fault

2017-02-24 17:46:54 -08:00

aio.c

userfaultfd: non-cooperative: add event for memory unmaps

2017-02-24 17:46:55 -08:00

anon_inodes.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

attr.c

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

2016-10-10 20:16:43 -07:00

bad_inode.c

bad_inode: add missing i_op initializers

2016-12-09 11:57:43 +01:00

binfmt_aout.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

binfmt_elf_fdpic.c

fs/binfmt: Convert obsolete cputime type to nsecs

2017-02-01 09:13:51 +01:00

binfmt_elf.c

powerpc: do not make the entire heap executable

2017-02-22 16:41:29 -08:00

binfmt_em86.c

…

binfmt_flat.c

…

binfmt_misc.c

…

binfmt_script.c

…

block_dev.c

Merge branch 'for-4.11/next' into for-4.11/linus-merge

2017-02-17 14:08:19 -07:00

buffer.c

clean_bdev_aliases: Prevent cleaning blocks that are not in block range

2017-01-02 09:35:14 -07:00

char_dev.c

…

compat_binfmt_elf.c

fs/binfmt: Convert obsolete cputime type to nsecs

2017-02-01 09:13:51 +01:00

compat_ioctl.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

compat.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

coredump.c

coredump: Ensure proper size of sparse core files

2017-01-14 19:32:40 -05:00

dax.c

mm: replace FAULT_FLAG_SIZE with parameter to huge_fault

2017-02-24 17:46:54 -08:00

dcache.c

mnt: Protect the mountpoint hashtable with mount_lock

2017-01-10 13:34:43 +13:00

dcookies.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

direct-io.c

do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned

2017-01-10 13:29:54 -07:00

drop_caches.c

…

eventfd.c

…

eventpoll.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

exec.c

vfs: Use upper filesystem inode in bprm_fill_uid()

2017-02-14 20:51:12 +13:00

fcntl.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

fhandle.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

file_table.c

constify alloc_file()

2016-12-05 19:01:16 -05:00

file.c

…

filesystems.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

fs_pin.c

…

fs_struct.c

…

fs-writeback.c

fs/fs-writeback.c: remove redundant if check

2016-12-12 18:55:08 -08:00

inode.c

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

2016-10-10 20:16:43 -07:00

internal.h

iomap: constify struct iomap_ops

2017-01-30 16:32:25 -08:00

ioctl.c

vfs: call vfs_clone_file_range() under freeze protection

2016-12-16 11:02:54 +01:00

iomap.c

mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

2017-02-24 17:46:54 -08:00

Kconfig

dax: fix build warnings with FS_DAX and !FS_IOMAP

2017-01-24 16:26:14 -08:00

Kconfig.binfmt

docs: fix locations of several documents that got moved

2016-10-24 08:12:35 -02:00

libfs.c

libfs: Modify mount_pseudo_xattr to be clear it is not a userspace mount

2017-01-10 13:34:55 +13:00

locks.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

Makefile

logfs: remove from tree

2016-12-14 23:48:11 -05:00

mbcache.c

mbcache: document that "find" functions only return reusable entries

2016-12-03 15:55:01 -05:00

mount.h

mnt: Tuck mounts under others instead of creating shadow/side mounts.

2017-02-04 00:01:06 +13:00

mpage.c

fs: Add helper to clean bdev aliases under a bh and use it

2016-11-04 14:34:47 -06:00

namei.c

fs: Better permission checking for submounts

2017-02-02 04:36:12 +13:00

namespace.c

mnt: Tuck mounts under others instead of creating shadow/side mounts.

2017-02-04 00:01:06 +13:00

no-block.c

…

nsfs.c

nsfs: Add an ioctl() to return owner UID of a userns

2017-02-03 14:35:43 +13:00

open.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

pipe.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

pnode.c

mnt: Tuck mounts under others instead of creating shadow/side mounts.

2017-02-04 00:01:06 +13:00

pnode.h

mnt: Tuck mounts under others instead of creating shadow/side mounts.

2017-02-04 00:01:06 +13:00

posix_acl.c

tmpfs: clear S_ISGID when setting posix ACLs

2017-01-10 01:29:48 -05:00

proc_namespace.c

…

read_write.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

readdir.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

select.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

seq_file.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

signalfd.c

…

splice.c

vfs: fix uninitialized flags in splice_to_pipe()

2017-02-16 09:09:02 -08:00

stack.c

…

stat.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

statfs.c

vfs: misc struct path constification

2016-12-05 19:03:49 -05:00

super.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2017-02-23 20:33:51 -08:00

sync.c

…

timerfd.c

timerfd: Protect the might cancel mechanism proper

2017-02-10 11:15:09 +01:00

userfaultfd.c

userfaultfd_copy: return -ENOSPC in case mm has gone

2017-02-24 17:46:55 -08:00

utimes.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

xattr.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00