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9d65cb4a17
linux/fs
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Alexey Dobriyan 9d65cb4a17 Fix race between cat /proc/*/wchan and rmmod et al 
kallsyms_lookup() can go iterating over modules list unprotected which is OK
for emergency situations (oops), but not OK for regular stuff like
/proc/*/wchan.

Introduce lookup_symbol_name()/lookup_module_symbol_name() which copy symbol
name into caller-supplied buffer or return -ERANGE.  All copying is done with
module_mutex held, so...

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:08 -07:00
..
9p header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
efs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
exportfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ext2 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ext3 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ext4 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
jbd2 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
jffs2 slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
jfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
lockd header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
nfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
nfs_common [PATCH] nfs_common endianness annotations 2006-10-20 10:26:41 -07:00
nfsd header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ocfs2 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 cat /proc/*/wchan and rmmod et al 2007-05-08 11:15:08 -07:00
qnx4 slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
ramfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
reiserfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
romfs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
smbfs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
sysfs remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
sysv header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
udf header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ufs header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
bad_inode.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_aout.c [PATCH] VFS: change struct file to use struct path 2006-12-08 08:28:41 -08:00
binfmt_elf_fdpic.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_elf.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_em86.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
binfmt_som.c [PARISC] Fix fs/binfmt_som.c 2006-10-04 06:51:26 -06:00
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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
char_dev.c [PATCH] remove protection of LANANA-reserved majors 2007-04-04 21:12:47 -07:00
compat_ioctl.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
compat.c [PATCH] x86-64: Print type and size correctly for unknown compat ioctls 2007-05-02 19:27:21 +02:00
dcache.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
drop_caches.c [PATCH] remove invalidate_inode_pages() 2007-02-11 10:51:31 -08:00
eventpoll.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
exec.c (re)register_binfmt returns with -EBUSY 2007-05-08 11:15:08 -07:00
fcntl.c [PATCH] fdtable: Make fdarray and fdsets equal in size 2006-12-10 09:57:22 -08:00
fifo.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
file_table.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
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 vfs: remove superflous sb == NULL checks 2007-05-08 11:15:02 -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 [PATCH] CONFIG_BLOCK internal.h cleanups 2006-09-30 20:52:32 +02:00
ioctl.c vfs: remove superflous sb == NULL checks 2007-05-08 11:15:02 -07:00
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 reiserfs: proc support requires PROC_FS 2007-05-08 11:15:04 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
namespace.c add filesystem subtype support 2007-05-08 11:15:01 -07:00
nfsctl.c
no-block.c
open.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
pipe.c VFS: delay the dentry name generation on sockets and pipes 2007-05-08 11:15:03 -07:00
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 [PATCH] kmemdup: some users 2006-10-01 00:39:19 -07:00
quota_v1.c
quota_v2.c
quota.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
read_write.c use use SEEK_MAX to validate user lseek arguments 2007-05-08 11:14:59 -07:00
read_write.h [PATCH] Remove readv/writev methods and use aio_read/aio_write instead 2006-10-01 00:39:28 -07:00
readdir.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
select.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
super.c add filesystem subtype support 2007-05-08 11:15:01 -07:00
sync.c Remove do_sync_file_range() 2007-05-08 11:15:04 -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 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00