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Alexey Dobriyan 7695650a92 Fix race between proc_get_inode() and remove_proc_entry() 
proc_lookup				remove_proc_entry
===========				=================

lock_kernel();
spin_lock(&proc_subdir_lock);
[find PDE with refcount 0]
spin_unlock(&proc_subdir_lock);
					spin_lock(&proc_subdir_lock);
					[find PDE with refcount 0]
					[check refcount and free PDE]
					spin_unlock(&proc_subdir_lock);
proc_get_inode:
	de_get(de); /* boom */

Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:01 -07:00
..
9p
v9fs: don't use primary fid when removing file
2007-04-24 08:23:08 -07:00
adfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
affs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
afs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
autofs
[PATCH] Mark struct super_operations const
2007-02-12 09:48:47 -08:00
autofs4
[PATCH] autofs4: fix race in unhashed dentry code
2007-04-12 15:31:42 -07:00
befs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
bfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
cifs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
coda
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
configfs
remove "struct subsystem" as it is no longer needed
2007-05-02 18:57:59 -07:00
cramfs
mm: make read_cache_page synchronous
2007-05-07 12:12:51 -07:00
debugfs
remove "struct subsystem" as it is no longer needed
2007-05-02 18:57:59 -07:00
devpts
devpts: add fsnotify create event
2007-05-08 11:14:59 -07:00
dlm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
2007-05-07 12:26:27 -07:00
ecryptfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
efs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
exportfs
…
ext2
ext2/3/4: fix file date underflow on ext2 3 filesystems on 64 bit systems
2007-05-08 11:14:58 -07:00
ext3
ext3: dirindex error pointer issues
2007-05-08 11:15:01 -07:00
ext4
ext3: dirindex error pointer issues
2007-05-08 11:15:01 -07:00
fat
is_power_of_2 in fat
2007-05-08 11:14:59 -07:00
freevxfs
freevxfs: possible null pointer dereference fix
2007-05-08 11:14:59 -07:00
fuse
add filesystem subtype support
2007-05-08 11:15:01 -07:00
gfs2
Factor outstanding I/O error handling
2007-05-08 11:14:57 -07:00
hfs
is_power_of_2 in fs/hfs
2007-05-08 11:14:59 -07:00
hfsplus
is_power_of_2 in fs/hfs
2007-05-08 11:14:59 -07:00
hostfs
uml: hostfs style fixes
2007-05-08 11:14:57 -07:00
hpfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
hppfs
[PATCH] Mark struct super_operations const
2007-02-12 09:48:47 -08:00
hugetlbfs
hugetlbfs: add NULL check in hugetlb_zero_setup()
2007-05-07 12:12:57 -07:00
isofs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
jbd
[PATCH] jbd: wait for already submitted t_sync_datalist buffer to complete
2006-12-22 08:55:51 -08:00
jbd2
[PATCH] jbd2: wait for already submitted t_sync_datalist buffer to complete
2006-12-07 08:39:42 -08:00
jffs2
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
jfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
lockd
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
minix
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
msdos
[PATCH] mark struct inode_operations const 2
2007-02-12 09:48:46 -08:00
ncpfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
nfs
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
nfs_common
[PATCH] nfs_common endianness annotations
2006-10-20 10:26:41 -07:00
nfsd
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
nls
[PATCH] fs: make nls_cp936.c handle some U00XY characters and U20AC correctly
2006-12-07 08:39:46 -08:00
ntfs
mm: move common segment checks to separate helper function
2007-05-08 11:14:57 -07:00
ocfs2
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
openpromfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
partitions
mm: optimize acorn partition truncate
2007-05-07 12:12:55 -07:00
proc
Fix race between proc_get_inode() and remove_proc_entry()
2007-05-08 11:15:01 -07:00
qnx4
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
ramfs
[PATCH] Mark struct super_operations const
2007-02-12 09:48:47 -08:00
reiserfs
reiserfs: correct misspelled "REISERFS_PROC_INFO" to "CONFIG_REISERFS_PROC_INFO"
2007-05-08 11:15:00 -07:00
romfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
smbfs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
sysfs
remove "struct subsystem" as it is no longer needed
2007-05-02 18:57:59 -07:00
sysv
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
udf
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
ufs
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
vfat
[PATCH] mark struct inode_operations const 3
2007-02-12 09:48:46 -08:00
xfs
mm: move common segment checks to separate helper function
2007-05-08 11:14:57 -07:00
aio.c
KMEM_CACHE(): simplify slab cache creation
2007-05-07 12:12:55 -07:00
attr.c
…
bad_inode.c
[PATCH] mark struct inode_operations const 1
2007-02-12 09:48:46 -08:00
binfmt_aout.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
binfmt_elf_fdpic.c
[PATCH] fix page leak during core dump
2007-04-02 10:06:08 -07:00
binfmt_elf.c
[PATCH] fix page leak during core dump
2007-04-02 10:06:08 -07:00
binfmt_em86.c
…
binfmt_flat.c
[PATCH] uclinux: correctly remap bin_fmtflat exe allocated mem regions
2007-02-09 10:45:33 -08:00
binfmt_misc.c
[PATCH] Mark struct super_operations const
2007-02-12 09:48:47 -08:00
binfmt_script.c
…
binfmt_som.c
…
bio.c
KMEM_CACHE(): simplify slab cache creation
2007-05-07 12:12:55 -07:00
block_dev.c
is_power_of_2 in fs/block_dev.c
2007-05-08 11:14:59 -07:00
buffer.c
block_write_full_page(): report ENOSPC
2007-05-08 11:14:57 -07:00
char_dev.c
[PATCH] remove protection of LANANA-reserved majors
2007-04-04 21:12:47 -07:00
compat_ioctl.c
[PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems
2007-05-02 19:27:21 +02:00
compat.c
[PATCH] x86-64: Print type and size correctly for unknown compat ioctls
2007-05-02 19:27:21 +02:00
dcache.c
mm: shrink parent dentries when shrinking slab
2007-05-08 11:14:58 -07:00
dcookies.c
[PATCH] slab: remove kmem_cache_t
2006-12-07 08:39:25 -08:00
direct-io.c
[PATCH] dio: lock refcount operations
2006-12-10 09:57:21 -08:00
dnotify.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
dquot.c
mm: remove destroy_dirty_buffers from invalidate_bdev()
2007-05-07 12:12:55 -07:00
drop_caches.c
[PATCH] remove invalidate_inode_pages()
2007-02-11 10:51:31 -08:00
eventpoll.c
epoll: optimizations and cleanups
2007-05-08 11:15:01 -07:00
exec.c
exec: fix remove_arg_zero
2007-05-08 11:15:00 -07:00
fcntl.c
[PATCH] fdtable: Make fdarray and fdsets equal in size
2006-12-10 09:57:22 -08:00
fifo.c
…
file_table.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
file.c
[PATCH] fdtable: Provide free_fdtable() wrapper
2006-12-22 08:55:50 -08:00
filesystems.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
fs-writeback.c
Write back inode data pages even when the inode itself is locked
2007-01-26 12:53:20 -08:00
generic_acl.c
…
inode.c
slab allocators: Remove SLAB_DEBUG_INITIAL flag
2007-05-07 12:12:57 -07:00
inotify_user.c
[PATCH] inotify: read return val fix
2007-02-12 09:48:28 -08:00
inotify.c
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
internal.h
…
ioctl.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
ioprio.c
[PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task
2007-02-12 09:48:32 -08:00
Kconfig
Merge git://git.linux-nfs.org/pub/linux/nfs-2.6
2007-05-04 19:55:11 -07:00
Kconfig.binfmt
blackfin architecture
2007-05-07 12:12:58 -07:00
libfs.c
[PATCH] shmem and simple const super_operations
2007-03-05 07:57:51 -08:00
locks.c
Merge branch 'server-cluster-locking-api' of git://linux-nfs.org/~bfields/linux
2007-05-07 12:34:24 -07:00
Makefile
Remove JFFS (version 1), as scheduled.
2007-02-17 16:10:59 -05:00
mbcache.c
[PATCH] slab: remove kmem_cache_t
2006-12-07 08:39:25 -08:00
mpage.c
Factor outstanding I/O error handling
2007-05-08 11:14:57 -07:00
namei.c
mm: make read_cache_page synchronous
2007-05-07 12:12:51 -07:00
namespace.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
nfsctl.c
…
no-block.c
…
open.c
[PATCH] fdtable: Make fdarray and fdsets equal in size
2006-12-10 09:57:22 -08:00
pipe.c
[PATCH] AUDIT_FD_PAIR
2007-02-17 21:30:15 -05:00
pnode.c
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
pnode.h
[PATCH] rename struct namespace to struct mnt_namespace
2006-12-08 08:28:51 -08:00
posix_acl.c
…
quota_v1.c
…
quota_v2.c
…
quota.c
…
read_write.c
use use SEEK_MAX to validate user lseek arguments
2007-05-08 11:14:59 -07:00
read_write.h
…
readdir.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
select.c
[PATCH] fdtable: Make fdarray and fdsets equal in size
2006-12-10 09:57:22 -08:00
seq_file.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
splice.c
[PATCH] splice: partial write fix
2007-03-29 14:26:42 +02:00
stack.c
[PATCH] fs/stack.c: Copy i_nlink after all other attributes are copied
2007-02-19 14:21:50 -08:00
stat.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00
super.c
add filesystem subtype support
2007-05-08 11:15:01 -07:00
sync.c
[PATCH] Turn do_sync_file_range() into do_sync_mapping_range()
2007-04-26 15:02:26 -07:00
utimes.c
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
xattr_acl.c
[PATCH] remove many unneeded #includes of sched.h
2007-02-14 08:09:54 -08:00
xattr.c
[PATCH] VFS: change struct file to use struct path
2006-12-08 08:28:41 -08:00