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Menglong Dong 42ccf9d14e coredump: fix core_pattern parse error 
commit 2bf509d96d84c3336d08375e8af34d1b85ee71c8 upstream.

'format_corename()' will splite 'core_pattern' on spaces when it is in
pipe mode, and take helper_argv[0] as the path to usermode executable.
It works fine in most cases.

However, if there is a space between '|' and '/file/path', such as
'| /usr/lib/systemd/systemd-coredump %P %u %g', then helper_argv[0] will
be parsed as '', and users will get a 'Core dump to | disabled'.

It is not friendly to users, as the pattern above was valid previously.
Fix this by ignoring the spaces between '|' and '/file/path'.

Fixes: 315c69261dd3 ("coredump: split pipe command whitespace before expanding template")
Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Wise <pabs3@bonedaddy.net>
Cc: Jakub Wilk <jwilk@jwilk.net> [https://bugs.debian.org/924398]
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/5fb62870.1c69fb81.8ef5d.af76@mx.google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-11 13:23:30 +01:00
..
9p
9P: Cast to loff_t before multiplying
2020-11-05 11:43:34 +01:00
adfs
Merge branch 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 11:33:22 -07:00
affs
affs: fix basic permission bits to actually work
2020-09-09 19:12:34 +02:00
afs
afs: Fix warning due to unadvanced marshalling pointer
2020-11-18 19:20:18 +01:00
autofs
autofs: fix a leak in autofs_expire_indirect()
2019-10-25 00:03:11 -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 lockdep splat when reading qgroup config on mount
2020-12-02 08:49:45 +01:00
cachefiles
cachefiles: Handle readpage error correctly
2020-11-05 11:43:36 +01:00
ceph
ceph: promote to unsigned long long before shifting
2020-11-05 11:43:34 +01:00
cifs
cifs: fix potential use-after-free in cifs_echo_request()
2020-12-11 13:23:29 +01:00
coda
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
configfs
configfs: fix config_item refcnt leak in configfs_rmdir()
2020-05-27 17:46:30 +02:00
cramfs
cramfs: fix usage on non-MTD device
2019-11-23 21:44:49 -05:00
crypto
fscrypt: don't evict dirty inodes after removing key
2020-03-18 07:17:53 +01:00
debugfs
debugfs: Fix module state check condition
2020-09-17 13:47:55 +02:00
devpts
devpts_pty_kill(): don't bother with d_delete()
2019-09-03 09:30:56 -04:00
dlm
fs: dlm: fix configfs memory leak
2020-10-29 09:58:03 +01:00
ecryptfs
ecryptfs: replace BUG_ON with error handling code
2020-02-28 17:22:26 +01:00
efivarfs
efivarfs: revert "fix memory leak in efivarfs_create()"
2020-12-02 08:49:53 +01:00
efs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
erofs
erofs: derive atime instead of leaving it empty
2020-11-18 19:20:28 +01:00
exportfs
exportfs_decode_fh(): negative pinned may become positive without the parent locked
2019-11-10 11:56:05 -05:00
ext2
ext2: don't update mtime on COW faults
2020-09-09 19:12:30 +02:00
ext4
ext4: fix bogus warning in ext4_update_dx_flag()
2020-11-24 13:29:21 +01:00
f2fs
f2fs: handle errors of f2fs_get_meta_page_nofail
2020-11-05 11:43:14 +01:00
fat
fat: don't allow to mount if the FAT length == 0
2020-06-17 16:40:36 +02:00
freevxfs
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
fscache
Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs"
2019-07-10 18:43:43 -07:00
fuse
fuse: fix page dereference after free
2020-11-01 12:01:05 +01:00
gfs2
gfs2: fix possible reference leak in gfs2_check_blk_type
2020-11-24 13:29:01 +01:00
hfs
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
hfsplus
hfsplus: fix crash and filesystem corruption when deleting files
2020-04-17 10:50:22 +02:00
hostfs
This pull request contains the following changes for UML:
2019-05-12 17:52:13 -04:00
hpfs
fs: hpfs: Initialize filesystem timestamp ranges
2019-08-30 08:11:25 -07:00
hugetlbfs
hugetlbfs: prevent filesystem stacking of hugetlbfs
2020-09-03 11:26:48 +02:00
iomap
iomap: fix WARN_ON_ONCE() from unprivileged users
2020-10-29 09:58:06 +01:00
isofs
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
jbd2
jbd2: fix up sparse warnings in checkpoint code
2020-11-18 19:20:30 +01:00
jffs2
jffs2: fix UAF problem
2020-08-26 10:40:56 +02:00
jfs
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
kernfs
kernfs: do not call fsnotify() with name without a parent
2020-08-19 08:16:12 +02:00
lockd
lockd: Make two symbols static
2019-07-03 17:52:09 -04:00
minix
fs/minix: remove expected error message in block_to_path()
2020-08-21 13:05:37 +02:00
nfs
NFSv4.2: support EXCHGID4_FLAG_SUPP_FENCE_OPS 4.2 EXCHANGE_ID flag
2020-11-05 11:43:31 +01:00
nfs_common
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
nfsd
NFSD: Add missing NFSv2 .pc_func methods
2020-11-05 11:43:31 +01:00
nilfs2
nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
2020-06-17 16:40:29 +02:00
nls
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
notify
fanotify: fix ignore mask logic for events on child and on dir
2020-06-17 16:40:24 +02:00
ntfs
ntfs: add check for mft record size in superblock
2020-10-29 09:58:03 +01:00
ocfs2
ocfs2: initialize ip_next_orphan
2020-11-18 19:20:30 +01:00
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: get rid of knob code...
2020-08-21 13:05:29 +02:00
overlayfs
ovl: fix unneeded call to ovl_change_flags()
2020-07-22 09:33:12 +02:00
proc
proc: don't allow async path resolution of /proc/self components
2020-12-02 08:49:48 +01:00
pstore
pstore: Fix linking when crypto API disabled
2020-08-19 08:16:27 +02:00
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
quota: clear padding in v2r1_mem2diskdqb()
2020-10-29 09:57:42 +01:00
ramfs
ramfs: fix nommu mmap with gaps in the page cache
2020-10-29 09:57:53 +01:00
reiserfs
reiserfs: Fix memory leak in reiserfs_parse_options()
2020-10-29 09:58:08 +01:00
romfs
romfs: fix uninitialized memory leak in romfs_dev_read()
2020-08-26 10:40:51 +02:00
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
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
sysv
fs: sysv: Initialize filesystem timestamp ranges
2019-08-30 07:27:18 -07:00
tracefs
tracing: Do not create tracefs files if tracefs lockdown is in effect
2019-10-12 20:49:07 -04:00
ubifs
ubifs: mount_ubifs: Release authentication resource in error handling path
2020-11-05 11:43:32 +01:00
udf
udf: Fix memory leak when mounting
2020-11-05 11:43:29 +01:00
ufs
fs/ufs: avoid potential u32 multiplication overflow
2020-08-21 13:05:37 +02:00
unicode
unicode: make array 'token' static const, makes object smaller
2019-09-17 11:48:24 -04:00
verity
fs-verity: support builtin file signatures
2019-08-12 19:33:50 -07:00
xfs
xfs: revert "xfs: fix rmap key and record comparison functions"
2020-11-24 13:29:18 +01:00
aio.c
aio: fix async fsync creds
2020-06-17 16:40:24 +02:00
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()
2020-02-11 04:35:12 -08:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
binfmt_elf.c
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
2020-06-03 08:21:27 +02:00
binfmt_em86.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
binfmt_flat.c
binfmt_flat: revert "binfmt_flat: don't offset the data start"
2020-09-03 11:26:39 +02:00
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
bdev: Reduce time holding bd_mutex in sync in blkdev_close()
2020-10-01 13:17:55 +02:00
buffer.c
fs: Don't invalidate page buffers in block_write_full_page()
2020-11-05 11:43:24 +01:00
char_dev.c
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-14 20:08:18 +01:00
compat_binfmt_elf.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 193
2019-05-30 11:29:21 -07:00
compat_ioctl.c
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2020-01-09 10:20:05 +01:00
compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
coredump.c
coredump: fix core_pattern parse error
2020-12-11 13:23:30 +01:00
d_path.c
fs: fix NULL dereference due to data race in prepend_path()
2020-10-29 09:57:45 +01:00
dax.c
dax: pass NOWAIT flag to iomap_apply
2020-03-05 16:43:36 +01:00
dcache.c
fix dget_parent() fastpath race
2020-10-01 13:17:19 +02:00
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: fix kernel-doc warning
2019-10-14 15:04:01 -07:00
drop_caches.c
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:21:37 +01:00
eventfd.c
eventfd: track eventfd_signal() recursion depth
2020-02-11 04:35:37 -08:00
eventpoll.c
ep_create_wakeup_source(): dentry name can change under you...
2020-10-07 08:01:31 +02:00
exec.c
mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race
2020-11-05 11:43:13 +01:00
fcntl.c
…
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
fix multiplication overflow in copy_fdtable()
2020-05-27 17:46:12 +02:00
filesystems.c
fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
2020-04-17 10:50:21 +02:00
fs_context.c
vfs: subtype handling moved to fuse
2019-09-06 21:28:49 +02:00
fs_parser.c
vfs: Make fs_parse() handle fs_param_is_fd-type params better
2019-09-12 21:06:14 -04:00
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
writeback: Fix sync livelock due to b_dirty_time processing
2020-09-03 11:27:04 +02:00
fsopen.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
inode.c
futex: Fix inode life-time issue
2020-03-25 08:25:58 +01:00
internal.h
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
io_uring.c
io_uring: Fix double list add in io_queue_async_work()
2020-10-14 10:32:57 +02:00
ioctl.c
compat_ioctl: add compat_ptr_ioctl()
2019-12-17 19:55:30 +01:00
Kconfig
fs-verity for 5.4
2019-09-18 16:59:14 -07:00
Kconfig.binfmt
binfmt_flat: make support for old format binaries optional
2019-06-24 09:16:47 +10:00
libfs.c
libfs: fix error cast of negative value in simple_attr_write()
2020-11-24 13:29:19 +01:00
locks.c
locks: reinstate locks_delete_block optimization
2020-03-25 08:25:41 +01:00
Makefile
fs-verity for 5.4
2019-09-18 16:59:14 -07:00
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
2020-01-17 19:48:21 +01:00
namei.c
namei: only return -ECHILD from follow_dotdot_rcu()
2020-03-05 16:43:48 +01:00
namespace.c
fs/namespace.c: fix use-after-free of mount in mnt_warn_timestamp_expiry()
2019-10-16 23:15:09 -04:00
no-block.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
nsfs.c
vfs: Convert nsfs to use the new mount API
2019-05-25 18:00:06 -04:00
open.c
cifs_atomic_open(): fix double-put on late allocation failure
2020-03-18 07:17:51 +01:00
pipe.c
vfs: Convert pipe to use the new mount API
2019-05-25 18:00:07 -04:00
pnode.c
propagate_one(): mnt_set_mountpoint() needs mount_lock
2020-05-02 08:48:44 +02:00
pnode.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209
2019-05-30 11:29:53 -07:00
posix_acl.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
proc_namespace.c
vfs: subtype handling moved to fuse
2019-09-06 21:28:49 +02:00
read_write.c
fs: allow deduplication of eof block into the end of the destination file
2020-02-11 04:35:23 -08:00
readdir.c
readdir: be more conservative with directory entry names
2020-01-29 16:45:31 +01:00
select.c
fs/select.c: use struct_size() in kmalloc()
2019-07-16 19:23:25 -07:00
seq_file.c
seq_file: fix problem when seeking mid-record
2019-08-13 16:06:52 -07:00
signalfd.c
fs/signalfd.c: fix inconsistent return codes for signalfd4
2020-08-26 10:40:58 +02:00
splice.c
splice: only read in as much information as there is pipe buffer space
2019-12-17 19:56:52 +01:00
stack.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
stat.c
…
statfs.c
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-03 14:21:35 -07:00
super.c
vfs: remove lockdep bogosity in __sb_start_write
2020-11-24 13:29:01 +01:00
sync.c
fs/sync.c: sync_file_range(2) may use WB_SYNC_ALL writeback
2019-05-14 09:47:50 -07:00
timerfd.c
timerfd: Prepare for PREEMPT_RT
2019-08-01 20:51:23 +02:00
userfaultfd.c
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
2020-01-04 19:18:32 +01:00
utimes.c
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
xattr.c
xattr: break delegations in {set,remove}xattr
2020-08-11 15:33:39 +02:00