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Oleg Nesterov 6eb3c3d0a5 exec: increase BINPRM_BUF_SIZE to 256 
Large enterprise clients often run applications out of networked file
systems where the IT mandated layout of project volumes can end up
leading to paths that are longer than 128 characters.  Bumping this up
to the next order of two solves this problem in all but the most
egregious case while still fitting into a 512b slab.

[oleg@redhat.com: update comment, per Kees]
Link: http://lkml.kernel.org/r/20181112160956.GA28472@redhat.com
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Ben Woodard <woodard@redhat.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-07 18:32:01 -08:00
..
9p
Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-11-01 19:58:52 -07:00
adfs
adfs: use timespec64 for time conversion
2018-08-22 10:52:51 -07:00
affs
…
afs
afs: Fix manually set volume location server list
2019-02-25 11:59:07 -08:00
autofs
autofs: clear O_NONBLOCK on the pipe
2019-03-07 18:32:01 -08:00
befs
fix a series of Documentation/ broken file name references
2018-06-15 18:10:01 -03:00
bfs
bfs: extra sanity checking and static inode bitmap
2019-01-04 13:13:47 -08:00
btrfs
btrfs: implement btrfs_debug* in terms of helper macro
2019-03-07 18:32:00 -08:00
cachefiles
fscache, cachefiles: remove redundant variable 'cache'
2018-11-30 16:00:58 +00:00
ceph
ceph: avoid repeatedly adding inode to mdsc->snap_flush_list
2019-02-18 18:08:29 +01:00
cifs
cifs: update internal module version number
2019-01-31 07:05:06 -06:00
coda
vfs: change inode times to use struct timespec64
2018-06-05 16:57:31 -07:00
configfs
configfs: fix registered group removal
2018-07-17 06:14:07 -07:00
cramfs
Make the Cramfs code more robust against filesystem corruptions,
2018-10-30 12:46:25 -07:00
crypto
crypto: clarify name of WEAK_KEY request flag
2019-01-25 18:41:52 +08:00
debugfs
Merge 5.0-rc6 into driver-core-next
2019-02-11 09:09:02 +01:00
devpts
devpts: Convert to new IDA API
2018-08-21 23:54:17 -04:00
dlm
socket: Rename SO_RCVTIMEO/ SO_SNDTIMEO with _OLD suffixes
2019-02-03 11:17:31 -08:00
ecryptfs
crypto: clarify name of WEAK_KEY request flag
2019-01-25 18:41:52 +08:00
efivarfs
efivars: Call guid_parse() against guid_t type of variable
2018-07-22 14:13:44 +02:00
efs
…
exofs
exofs_mount(): fix leaks on failure exits
2018-12-17 18:36:33 -05:00
exportfs
exportfs: do not read dentry after free
2018-11-23 09:08:17 -05:00
ext2
\n
2018-12-27 17:00:35 -08:00
ext4
Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal"
2019-01-31 23:41:11 -05:00
f2fs
f2fs: no need to check return value of debugfs_create functions
2019-01-22 14:25:25 +01:00
fat
fat: enable .splice_write to support splice on O_DIRECT file
2019-03-07 18:32:01 -08:00
freevxfs
…
fscache
fscache: fix race between enablement and dropping of object
2018-11-30 15:57:31 +00:00
fuse
fuse: decrement NR_WRITEBACK_TEMP on the right page
2019-01-16 10:27:59 +01:00
gfs2
Revert "gfs2: read journal in large chunks to locate the head"
2019-02-14 09:52:51 -08:00
hfs
hfs: do not free node before using
2018-11-30 14:56:14 -08:00
hfsplus
hfsplus: return file attributes on statx
2019-01-04 13:13:47 -08:00
hostfs
vfs: discard ATTR_ATTR_FLAG
2018-08-17 16:20:28 -07:00
hpfs
hpfs: remove unnecessary checks on the value of r when assigning error code
2018-08-25 12:42:33 -07:00
hugetlbfs
mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd
2019-03-05 21:07:19 -08:00
isofs
Update email address
2018-09-29 22:47:48 -04:00
jbd2
jbd2: clean up indentation issue, replace spaces with tab
2018-12-04 00:20:10 -05:00
jffs2
jffs2: Fix use of uninitialized delayed_work, lockdep breakage
2018-12-02 09:20:34 +01:00
jfs
jfs: remove redundant dquot_initialize() in jfs_evict_inode()
2018-09-20 09:28:49 -05:00
kernfs
Driver core patches for 5.1-rc1
2019-03-06 14:52:48 -08:00
lockd
NFS client updates for Linux 4.21
2019-01-02 16:35:23 -08:00
minix
…
nfs
Merge branch 'fixes-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-02-20 09:09:33 -08:00
nfs_common
…
nfsd
Revert "nfsd4: return default lease period"
2019-02-14 12:33:19 -05:00
nilfs2
nilfs2: Use xa_erase_irq
2018-11-05 14:57:05 -05:00
nls
…
notify
inotify: Fix fd refcount leak in inotify_add_watch().
2019-01-02 18:28:37 +01:00
ntfs
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
ocfs2
ocfs2: Use zero-sized array and struct_size() in kzalloc()
2019-03-05 21:07:13 -08:00
omfs
…
openpromfs
fs/openpromfs: Use of_node_name_eq for node name comparisons
2018-11-18 13:35:19 -08:00
orangefs
orangefs: remove two un-needed BUG_ONs...
2019-02-20 15:12:52 -05:00
overlayfs
Revert "ovl: relax permission checking on underlying layers"
2018-12-04 11:31:30 +01:00
proc
Merge branch 'akpm' (patches from Andrew)
2019-03-06 10:31:36 -08:00
pstore
pstore/ram: Avoid allocation and leak of platform data
2019-01-20 14:44:52 -08:00
qnx4
…
qnx6
…
quota
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
2018-12-18 18:29:15 +01:00
ramfs
…
reiserfs
reiserfs: remove workaround code for GCC 3.x
2018-10-31 08:54:14 -07:00
romfs
…
squashfs
Squashfs: Compute expected length from inode size rather than block length
2018-08-02 09:34:02 -07:00
sysfs
sysfs: remove unused include of kernfs-internal.h
2019-02-08 12:57:31 +01:00
sysv
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-11-10 08:02:40 -05:00
tracefs
tracefs: Annotate tracefs_ops with __ro_after_init
2018-07-31 11:32:44 -04:00
ubifs
mm: migrate: drop unused argument of migrate_page_move_mapping()
2018-12-28 12:11:51 -08:00
udf
\n
2018-12-27 17:00:35 -08:00
ufs
fs/ufs: use ktime_get_real_seconds for sb and cg timestamps
2018-08-17 16:20:27 -07:00
xfs
xfs: set buffer ops when repair probes for btree type
2019-02-03 14:03:59 -08:00
aio.c
Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-03-05 14:08:26 -08:00
anon_inodes.c
anon_inode_getfile(): switch to alloc_file_pseudo()
2018-07-12 10:04:27 -04:00
attr.c
fs: Fix attr.c kernel-doc
2018-07-03 16:44:45 -04:00
bad_inode.c
get rid of 'opened' argument of ->atomic_open() - part 3
2018-07-12 10:04:20 -04:00
binfmt_aout.c
a.out: remove core dumping support
2019-03-05 10:00:35 -08:00
binfmt_elf_fdpic.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
binfmt_elf.c
fs/binfmt_elf.c: spread const a little
2019-03-07 18:32:01 -08:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
turn filp_clone_open() into inline wrapper for dentry_open()
2018-07-10 23:29:03 -04:00
binfmt_script.c
exec: load_script: Do not exec truncated interpreter path
2019-02-18 16:49:36 -08:00
block_dev.c
blockdev: Fix livelocks on loop device
2019-01-15 07:30:56 -07:00
buffer.c
fs: ratelimit __find_get_block_slow() failure message.
2019-02-06 12:58:56 -07:00
char_dev.c
…
compat_binfmt_elf.c
y2038: globally rename compat_time to old_time32
2018-08-27 14:48:48 +02:00
compat_ioctl.c
media updates for v4.20-rc1
2018-10-29 14:29:58 -07:00
compat.c
ncpfs: remove compat functionality
2018-06-05 19:23:26 +02:00
coredump.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
d_path.c
…
dax.c
dax fix 4.21
2018-12-31 09:46:39 -08:00
dcache.c
fs/dcache: Track & report number of negative dentries
2019-01-30 11:02:11 -08:00
dcookies.c
…
direct-io.c
direct-io: allow direct writes to empty inodes
2019-01-22 08:26:44 -07:00
drop_caches.c
fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()
2019-02-01 15:46:24 -08:00
eventfd.c
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
eventpoll.c
epoll: use rwlock in order to reduce ep_poll_callback() contention
2019-03-07 18:32:01 -08:00
exec.c
exec: increase BINPRM_BUF_SIZE to 256
2019-03-07 18:32:01 -08:00
fcntl.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
fhandle.c
…
file_table.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
file.c
fs/file.c: initialize init_files.resize_wait
2019-03-05 21:07:14 -08:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
writeback: synchronize sync(2) against cgroup writeback membership switches
2019-01-22 14:39:38 -07:00
inode.c
fs/inode.c: inode_set_flags(): replace opencoded set_mask_bits()
2019-03-05 21:07:13 -08:00
internal.h
overlayfs update for 4.19
2018-08-21 18:19:09 -07:00
ioctl.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
iomap.c
iomap: fix a use after free in iomap_dio_rw
2019-01-27 08:47:42 -08:00
Kconfig
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
Kconfig.binfmt
kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
2018-08-02 08:06:55 +09:00
libfs.c
…
locks.c
locking/percpu-rwsem: Remove preempt_disable variants
2019-02-28 07:55:37 +01:00
Makefile
autofs: remove left-over autofs4 stubs
2018-06-11 08:22:34 -07:00
mbcache.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
mount.h
…
mpage.c
mpage: mpage_readpages() should submit IO as read-ahead
2018-08-17 16:20:29 -07:00
namei.c
linux/fs.h: move member alignment check next to definition of struct filename
2019-03-07 18:31:59 -08:00
namespace.c
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-03-04 13:24:27 -08:00
no-block.c
…
nsfs.c
…
open.c
overlayfs update for 4.19
2018-08-21 18:19:09 -07:00
pipe.c
memcg: localize memcg_kmem_enabled() check
2019-03-05 21:07:15 -08:00
pnode.c
vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled
2018-12-20 16:32:56 +00:00
pnode.h
…
posix_acl.c
…
proc_namespace.c
…
read_write.c
get rid of legacy 'get_ds()' function
2019-03-04 10:50:14 -08:00
readdir.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
select.c
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
seq_file.c
fs/seq_file.c: simplify seq_file iteration code and interface
2018-08-17 16:20:28 -07:00
signalfd.c
signal: Distinguish between kernel_siginfo and siginfo
2018-10-03 16:47:43 +02:00
splice.c
fs: Make splice() and tee() take into account O_NONBLOCK flag on pipes
2019-03-04 16:10:17 -08:00
stack.c
…
stat.c
y2038: Remove newstat family from default syscall set
2018-08-29 15:42:20 +02:00
statfs.c
kernel: add kcompat_sys_{f,}statfs64()
2018-07-12 14:49:48 +01:00
super.c
mount_fs: suppress MAC on MS_SUBMOUNT as well as MS_KERNMOUNT
2018-12-21 11:51:23 -05:00
sync.c
…
timerfd.c
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
userfaultfd.c
userfaultfd: clear flag if remap event not enabled
2018-12-28 12:11:51 -08:00
utimes.c
y2038: syscalls: rename y2038 compat syscalls
2019-02-07 00:13:27 +01:00
xattr.c
sysfs: Do not return POSIX ACL xattrs via listxattr
2018-09-18 07:30:48 -04:00