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b140f25108
linux/fs
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Alexey Kuznetsov b140f25108 Invalid return value of execve() resulting in oopses 
When elf loader fails to map executable (due to memory shortage or because
binary is malformed), it can return 0.  Normally, this is invisible because
process is killed with SIGKILL and it never returns to user space.

But if exec() is called from kernel thread (hotplug, whatever)
consequences are more interesting and vary depending on architecture.

i386.   Nothing especially interesting, execve() just returns
        with "success"  :-)

x86_64. Fake zero frame is used on way to caller, RSP/RIP are loaded
        with zeros, ergo... double fault.

ia64.   Similar to i386, but r32...r95 are corrupted. Sometimes it
        oopses due to return to zero PC, sometimes it sees NaT in
        rXX and oopses due to NaT consumption.

Signed-off-by: Alexey Kuznetsov <alexey@openvz.org>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:15 -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 ext3: copy i_flags to inode flags on write 2007-05-08 11:15:13 -07:00
ext3 ext3: copy i_flags to inode flags on write 2007-05-08 11:15:12 -07:00
ext4 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
fat fat: fix VFAT compat ioctls on 64-bit systems 2007-05-08 11:15:14 -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 jbd: check for error returned by kthread_create on creating journal thread 2007-05-08 11:15:13 -07:00
jbd2 jbd: check for error returned by kthread_create on creating journal thread 2007-05-08 11:15:13 -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 partition: add support for sysv68 partitions 2007-05-08 11:15:09 -07:00
proc procfs: use simple_read_from_buffer() 2007-05-08 11:15:14 -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 reiserfs: use __set_current_state() 2007-05-08 11:15:13 -07:00
romfs slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
smbfs smbfs: remove unnecessary allow_signal 2007-05-08 11:15:11 -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 udf: decrement correct link count in udf_rmdir 2007-05-08 11:15:14 -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 Invalid return value of execve() resulting in oopses 2007-05-08 11:15:15 -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
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 Fix error handling in HDIO_GETGEO compat wrapper 2007-05-08 11:15:14 -07:00
compat.c cleanup compat ioctl handling 2007-05-08 11:15:09 -07:00
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 Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
drop_caches.c [PATCH] remove invalidate_inode_pages() 2007-02-11 10:51:31 -08:00
eventpoll.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -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 Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
inotify_user.c [PATCH] inotify: read return val fix 2007-02-12 09:48:28 -08:00
inotify.c Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
internal.h cleanup compat ioctl handling 2007-05-08 11:15:09 -07:00
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 check privileges before setting mount propagation 2007-05-08 11:15:12 -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 Introduce a handy list_first_entry macro 2007-05-08 11:15:11 -07:00
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 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
readdir.c ROUND_UP macro cleanup in fs/(select|compat|readdir).c 2007-05-08 11:15:09 -07:00
select.c ROUND_UP macro cleanup in fs/(select|compat|readdir).c 2007-05-08 11:15:09 -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