Tetsuo Handa 912193521b exec: do not call request_module() twice from search_binary_handler() ...

Currently, search_binary_handler() tries to load binary loader module
using request_module() if a loader for the requested program is not yet
loaded.  But second attempt of request_module() does not affect the result
of search_binary_handler().

If request_module() triggered recursion, calling request_module() twice
causes 2 to the power of MAX_KMOD_CONCURRENT (= 50) repetitions.  It is
not an infinite loop but is sufficient for users to consider as a hang up.

Therefore, this patch changes not to call request_module() twice, making 1
to the power of MAX_KMOD_CONCURRENT repetitions in case of recursion.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: Richard Weinberger <richard@nod.at>
Tested-by: Richard Weinberger <richard@nod.at>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2011-07-26 16:49:44 -07:00

..

9p

p9: avoid unused variable warning

2011-07-25 23:43:53 -07:00

adfs

Fix common misspellings

2011-03-31 11:26:23 -03:00

affs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

afs

AFS: Fix silly characters in a comment

2011-07-20 20:48:03 -04:00

autofs4

autofs4: bogus dentry_unhash() added in ->unlink()

2011-05-30 01:50:53 -04:00

befs

Fix common misspellings

2011-03-31 11:26:23 -03:00

bfs

bfs: remove unnecessary dentry_unhash on dir rename

2011-05-28 01:02:50 -04:00

btrfs

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

2011-07-26 10:39:54 -07:00

cachefiles

kill useless checks for sb->s_op == NULL

2011-07-20 01:44:21 -04:00

ceph

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2011-07-26 13:38:50 -07:00

cifs

Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

2011-07-26 11:11:28 -07:00

coda

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

configfs

configfs: remove unnecessary dentry_unhash on rmdir, dir rename

2011-05-28 01:02:54 -04:00

cramfs

cramfs: get_cramfs_inode() returns ERR_PTR() on failure

2011-07-17 23:22:02 -04:00

debugfs

debugfs: move to new strtobool

2011-05-19 16:55:28 +09:30

devpts

fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new()

2011-03-22 17:44:17 -07:00

dlm

Merge branch 'for-3.1' of git://linux-nfs.org/~bfields/linux

2011-07-25 22:49:19 -07:00

ecryptfs

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

2011-07-25 13:56:39 -07:00

efs

make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)

2011-07-20 01:44:26 -04:00

exofs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

exportfs

vfs: Add open by file handle support

2011-03-15 02:21:44 -04:00

ext2

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

2011-07-26 11:34:40 -07:00

ext3

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

2011-07-26 11:34:40 -07:00

ext4

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

2011-07-26 10:39:54 -07:00

fat

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

freevxfs

treewide: fix a few typos in comments

2011-05-10 10:16:21 +02:00

fscache

FS-Cache: Fix __fscache_uncache_all_inode_pages()'s outer loop

2011-07-21 10:59:16 -07:00

fuse

Merge branch 'for-3.1' of git://linux-nfs.org/~bfields/linux

2011-07-25 22:49:19 -07:00

gfs2

fs: take the ACL checks to common code

2011-07-25 14:30:23 -04:00

hfs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

hfsplus

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-07-22 19:02:39 -07:00

hostfs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

hpfs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

hppfs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

hugetlbfs

Merge 'akpm' patch series

2011-07-25 21:00:19 -07:00

isofs

isofs: Remove global fs lock

2011-07-22 19:42:12 -04:00

jbd

jbd: Use WRITE_SYNC in journal checkpoint.

2011-06-28 00:06:41 +02:00

jbd2

jbd2: Fix oops in jbd2_journal_remove_journal_head()

2011-06-13 15:38:22 -04:00

jffs2

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

2011-07-25 13:56:39 -07:00

jfs

fs: take the ACL checks to common code

2011-07-25 14:30:23 -04:00

lockd

locks: rename lock-manager ops

2011-07-20 20:23:19 -04:00

logfs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

minix

minix_getattr(): don't bother with ->d_parent

2011-07-20 20:47:53 -04:00

ncpfs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

nfs

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

2011-07-26 10:39:54 -07:00

nfs_common

Fix common misspellings

2011-03-31 11:26:23 -03:00

nfsd

Merge branch 'for-3.1' of git://linux-nfs.org/~bfields/linux

2011-07-25 22:49:19 -07:00

nilfs2

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

nls

…

notify

Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6

2011-04-07 11:14:49 -07:00

ntfs

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

ocfs2

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

2011-07-25 13:56:39 -07:00

omfs

Remove unneeded version.h includes from fs/

2011-06-24 08:34:22 -07:00

openpromfs

…

partitions

Merge branch 'for-linus' into for-3.1/core

2011-07-01 16:17:13 +02:00

proc

proc: fix a race in do_io_accounting()

2011-07-26 16:49:43 -07:00

pstore

pstore: fix pstore filesystem mount/remount issue

2011-05-16 11:05:00 -07:00

qnx4

…

quota

vmscan: change shrinker API by passing shrink_control struct

2011-05-25 08:39:26 -07:00

ramfs

ramfs: fix memleak on no-mmu arch

2011-04-14 16:06:56 -07:00

reiserfs

Merge 'akpm' patch series

2011-07-25 21:00:19 -07:00

romfs

romfs: fix romfs_get_unmapped_area() argument check

2011-06-27 18:00:12 -07:00

squashfs

Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus

2011-07-25 22:50:35 -07:00

sysfs

->permission() sanitizing: don't pass flags to ->permission()

2011-07-20 01:43:24 -04:00

sysv

sysv: remove unnecessary dentry_unhash from rmdir, dir rename

2011-05-28 01:02:50 -04:00

ubifs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-07-22 19:02:39 -07:00

udf

switch udf_ioctl() to inode_permission()

2011-07-20 01:43:07 -04:00

ufs

make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)

2011-07-20 01:44:26 -04:00

xfs

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

2011-07-25 13:56:39 -07:00

aio.c

Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block

2011-03-24 10:16:26 -07:00

anon_inodes.c

VFS : mount lock scalability for internal mounts

2011-07-24 10:08:32 -04:00

attr.c

fs: move inode_dio_wait calls into ->setattr

2011-07-20 20:47:47 -04:00

bad_inode.c

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

binfmt_aout.c

…

binfmt_elf_fdpic.c

consolidate BINPRM_FLAGS_ENFORCE_NONDUMP handling

2011-07-20 01:43:10 -04:00

binfmt_elf.c

consolidate BINPRM_FLAGS_ENFORCE_NONDUMP handling

2011-07-20 01:43:10 -04:00

binfmt_em86.c

…

binfmt_flat.c

CRED: Fix load_flat_shared_library() to initialise bprm correctly

2011-05-03 10:10:51 +10:00

binfmt_misc.c

consolidate BINPRM_FLAGS_ENFORCE_NONDUMP handling

2011-07-20 01:43:10 -04:00

binfmt_script.c

…

binfmt_som.c

…

bio-integrity.c

block: Require subsystems to explicitly allocate bio_set integrity mempool

2011-03-17 11:11:05 +01:00

bio.c

block: improve the bio_add_page() and bio_add_pc_page() descriptions

2011-05-28 14:44:46 +02:00

block_dev.c

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

2011-07-26 10:39:54 -07:00

buffer.c

vfs: Fix data corruption after failed write in __block_write_begin()

2011-06-16 11:44:46 -04:00

char_dev.c

…

compat_binfmt_elf.c

…

compat_ioctl.c

compat_ioctl: fix warning caused by qemu

2011-07-01 22:32:26 +02:00

compat.c

nfsd: Remove deprecated nfsctl system call and related code.

2011-07-15 18:58:42 -04:00

dcache.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-07-22 19:02:39 -07:00

dcookies.c

oprofile, dcookies: Fix possible circular locking dependency

2011-05-31 16:33:35 +02:00

direct-io.c

fs: move inode_dio_done to the end_io handler

2011-07-20 20:47:50 -04:00

drop_caches.c

vmscan: change shrinker API by passing shrink_control struct

2011-05-25 08:39:26 -07:00

eventfd.c

…

eventpoll.c

Fix common misspellings

2011-03-31 11:26:23 -03:00

exec.c

exec: do not call request_module() twice from search_binary_handler()

2011-07-26 16:49:44 -07:00

fcntl.c

userns: rename is_owner_or_cap to inode_owner_or_capable

2011-03-23 19:47:13 -07:00

fhandle.c

fs/fhandle.c: add <linux/personality.h> for ia64

2011-04-14 16:06:56 -07:00

fifo.c

Filesystem: fifo: Fixed coding style issue.

2011-03-21 00:16:09 -04:00

file_table.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-03-16 13:26:17 -07:00

file.c

vfs: avoid large kmalloc()s for the fdtable

2011-04-28 11:28:20 -07:00

filesystems.c

fs: synchronize_rcu when unregister_filesystem success not failure

2011-04-17 10:42:01 -07:00

fs_struct.c

…

fs-writeback.c

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

2011-07-26 10:39:54 -07:00

generic_acl.c

fs: take the ACL checks to common code

2011-07-25 14:30:23 -04:00

inode.c

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

2011-07-26 10:39:54 -07:00

internal.h

superblock: move pin_sb_for_writeback() to fs/super.c

2011-07-20 01:44:38 -04:00

ioctl.c

vfs: cleanup do_vfs_ioctl()

2011-03-21 00:16:08 -04:00

ioprio.c

…

Kconfig

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2011-05-26 09:52:14 -07:00

Kconfig.binfmt

…

libfs.c

fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.

2011-07-22 19:42:11 -04:00

locks.c

locks: rename lock-manager ops

2011-07-20 20:23:19 -04:00

Makefile

nfsd: Remove deprecated nfsctl system call and related code.

2011-07-15 18:58:42 -04:00

mbcache.c

vmscan: change shrinker API by passing shrink_control struct

2011-05-25 08:39:26 -07:00

mpage.c

mm/fs: add hooks to support cleancache

2011-05-26 10:01:43 -06:00

namei.c

vfs: fix check_acl compile error when CONFIG_FS_POSIX_ACL is not set

2011-07-25 22:47:03 -07:00

namespace.c

VFS : mount lock scalability for internal mounts

2011-07-24 10:08:32 -04:00

no-block.c

…

open.c

vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp

2011-07-22 19:42:13 -04:00

pipe.c

VFS : mount lock scalability for internal mounts

2011-07-24 10:08:32 -04:00

pnode.c

…

pnode.h

…

posix_acl.c

fs: take the ACL checks to common code

2011-07-25 14:30:23 -04:00

read_write.c

fs: add SEEK_HOLE and SEEK_DATA flags

2011-07-20 20:47:56 -04:00

read_write.h

…

readdir.c

…

select.c

select: remove unused MAX_SELECT_SECONDS

2011-03-21 00:16:08 -04:00

seq_file.c

…

signalfd.c

…

splice.c

tmpfs: clone shmem_file_splice_read()

2011-07-25 20:57:11 -07:00

stack.c

…

stat.c

readlinkat(), fchownat() and fstatat() with empty relative pathnames

2011-03-15 02:21:45 -04:00

statfs.c

clean statfs-like syscalls up

2011-03-14 09:15:28 -04:00

super.c

Merge branch 'for-3.1/core' of git://git.kernel.dk/linux-block

2011-07-25 10:33:36 -07:00

sync.c

fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

2011-07-20 20:47:59 -04:00

timerfd.c

timerfd: Fix wakeup of processes when timer is cancelled on clock change

2011-06-14 11:46:14 +02:00

utimes.c

userns: rename is_owner_or_cap to inode_owner_or_capable

2011-03-23 19:47:13 -07:00

xattr_acl.c

…

xattr.c

Cache xattr security drop check for write v2

2011-05-28 12:02:09 -04:00