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Andrey Mirkin 822191a2fa [PATCH] skip data conversion in compat_sys_mount when data_page is NULL 
OpenVZ Linux kernel team has found a problem with mounting in compat mode.

Simple command "mount -t smbfs ..." on Fedora Core 5 distro in 32-bit mode
leads to oops:

  Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: compat_sys_mount+0xd6/0x290
  Process mount (pid: 14656, veid=300, threadinfo ffff810034d30000, task ffff810034c86bc0)
  Call Trace: ia32_sysret+0x0/0xa

The problem is that data_page pointer can be NULL, so we should skip data
conversion in this case.

Signed-off-by: Andrey Mirkin <amirkin@openvz.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:20 -08:00
..
9p
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2006-12-05 17:01:28 +00:00
adfs
[PATCH] Streamline generic_file_* interfaces and filemap cleanups
2006-10-01 00:39:28 -07:00
affs
[PATCH] Streamline generic_file_* interfaces and filemap cleanups
2006-10-01 00:39:28 -07:00
afs
[PATCH] fs/*: use BUILD_BUG_ON
2006-10-11 11:14:23 -07:00
autofs
[PATCH] autofs4: panic after mount fail
2006-11-14 09:09:27 -08:00
autofs4
[PATCH] autofs4: panic after mount fail
2006-11-14 09:09:27 -08:00
befs
[PATCH] befs: endianness annotations
2006-10-10 16:15:33 -07:00
bfs
[PATCH] r/o bind mount prepwork: inc_nlink() helper
2006-10-01 00:39:30 -07:00
cifs
[CIFS] Fix timezone handling on stat to os/2
2006-11-16 22:48:25 +00:00
coda
[PATCH] r/o bind mount prepwork: inc_nlink() helper
2006-10-01 00:39:30 -07:00
configfs
configfs: make configfs_dirent_exists() static
2006-12-01 18:29:12 -08:00
cramfs
[PATCH] cramfs: make cramfs_uncompress_exit() return void
2006-09-29 09:18:20 -07:00
debugfs
[PATCH] debugfs: add header file
2006-11-25 13:28:33 -08:00
devpts
[PATCH] inode-diet: Eliminate i_blksize from the inode structure
2006-09-27 08:26:18 -07:00
dlm
[DLM] fix oops in kref_put when removing a lockspace
2006-11-06 09:28:01 -05:00
ecryptfs
[PATCH] ecryptfs: fix crypto_alloc_blkcipher() error check
2006-11-28 17:26:50 -08:00
efs
[PATCH] Really ignore kmem_cache_destroy return value
2006-09-27 08:26:10 -07:00
exportfs
[PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers
2006-10-03 08:03:40 -07:00
ext2
[PATCH] ext2: errors behaviour fix
2006-10-11 11:14:21 -07:00
ext3
[PATCH] ext3: errors behaviour fix
2006-10-11 11:14:21 -07:00
ext4
[PATCH] ext4: fix printk format warnings
2006-10-28 11:30:51 -07:00
fat
[PATCH] fat: add fat_getattr()
2006-11-16 11:43:38 -08:00
freevxfs
[PATCH] freevxfs: fix leak on error path
2006-09-29 09:18:20 -07:00
fuse
[PATCH] fuse: fix Oops in lookup
2006-11-25 13:28:33 -08:00
gfs2
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2006-12-05 17:01:28 +00:00
hfs
[PATCH] hfs_fill_super returns success even if no root inode
2006-11-16 11:43:38 -08:00
hfsplus
fix file specification in comments
2006-10-03 23:01:26 +02:00
hostfs
[PATCH] Streamline generic_file_* interfaces and filemap cleanups
2006-10-01 00:39:28 -07:00
hpfs
[PATCH] hpfs endianness annotations
2006-10-10 16:15:34 -07:00
hppfs
[PATCH] hppfs: readdir callback missed in prototype change
2006-10-09 14:19:08 -07:00
hugetlbfs
[PATCH] hugetlb: prepare_hugepage_range check offset too
2006-11-14 09:09:27 -08:00
isofs
[PATCH] isofs endianness annotations
2006-10-10 16:15:34 -07:00
jbd
[PATCH] jbd: journal_dirty_data re-check for unmapped buffers
2006-10-28 11:30:51 -07:00
jbd2
[PATCH] jbd2: journal_dirty_data re-check for unmapped buffers
2006-10-28 11:30:51 -07:00
jffs
[PATCH] r/o bind mounts: unlink: monitor i_nlink
2006-10-01 00:39:30 -07:00
jffs2
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
jfs
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
lockd
[PATCH] sysctl: implement CTL_UNNUMBERED
2006-11-06 01:46:23 -08:00
minix
[PATCH] fs/*: use BUILD_BUG_ON
2006-10-11 11:14:23 -07:00
msdos
[PATCH] fat: add fat_getattr()
2006-11-16 11:43:38 -08:00
ncpfs
WorkStruct: make allyesconfig
2006-11-22 14:57:56 +00:00
nfs
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2006-12-05 14:37:56 +00:00
nfs_common
[PATCH] nfs_common endianness annotations
2006-10-20 10:26:41 -07:00
nfsd
WorkStruct: make allyesconfig
2006-11-22 14:57:56 +00:00
nls
fix file specification in comments
2006-10-03 23:01:26 +02:00
ntfs
[PATCH] Streamline generic_file_* interfaces and filemap cleanups
2006-10-01 00:39:28 -07:00
ocfs2
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2006-12-05 17:01:28 +00:00
openpromfs
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
partitions
[PATCH] Enable RAID autorun on Mac partition tables.
2006-12-04 08:36:37 -08:00
proc
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
qnx4
[PATCH] r/o bind mounts: monitor zeroing of i_nlink
2006-10-01 00:39:30 -07:00
ramfs
[PATCH] r/o bind mount prepwork: inc_nlink() helper
2006-10-01 00:39:30 -07:00
reiserfs
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2006-12-05 14:37:56 +00:00
romfs
[PATCH] Really ignore kmem_cache_destroy return value
2006-09-27 08:26:10 -07:00
smbfs
[PATCH] Streamline generic_file_* interfaces and filemap cleanups
2006-10-01 00:39:28 -07:00
sysfs
driver core: Introduce device_move(): move a device to a new parent.
2006-12-01 14:52:01 -08:00
sysv
[PATCH] fs/*: use BUILD_BUG_ON
2006-10-11 11:14:23 -07:00
udf
[PATCH] UDF: Fix mounting read-write
2006-10-05 16:18:55 -07:00
ufs
[PATCH] ufs endianness annotations
2006-10-10 16:15:34 -07:00
vfat
[PATCH] fat: add fat_getattr()
2006-11-16 11:43:38 -08:00
xfs
WorkStruct: make allyesconfig
2006-11-22 14:57:56 +00:00
aio.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2006-12-05 14:37:56 +00:00
attr.c
…
bad_inode.c
[PATCH] Remove readv/writev methods and use aio_read/aio_write instead
2006-10-01 00:39:28 -07:00
binfmt_aout.c
[PATCH] Require mmap handler for a.out executables
2006-09-29 09:18:08 -07:00
binfmt_elf_fdpic.c
[PATCH] elf_fdpic_core_dump: don't take tasklist_lock
2006-09-29 09:18:14 -07:00
binfmt_elf.c
[POWERPC] coredump: Add SPU elf notes to coredump.
2006-12-04 20:40:19 +11:00
binfmt_em86.c
…
binfmt_flat.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
binfmt_misc.c
[PATCH] Fix unserialized task->files changing
2006-09-29 09:18:12 -07:00
binfmt_script.c
…
binfmt_som.c
[PARISC] Fix fs/binfmt_som.c
2006-10-04 06:51:26 -06:00
bio.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2006-12-05 14:37:56 +00:00
block_dev.c
[PATCH] find_bd_holder() fix
2006-10-31 08:06:58 -08:00
buffer.c
[PATCH] Fix IO error reporting on fsync()
2006-10-17 08:18:46 -07:00
char_dev.c
[PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6]
2006-09-30 20:52:18 +02:00
compat_ioctl.c
[PATCH] 32-bit compatibility HDIO IOCTLs
2006-10-11 11:14:22 -07:00
compat.c
[PATCH] skip data conversion in compat_sys_mount when data_page is NULL
2006-12-07 08:39:20 -08:00
dcache.c
[PATCH] VFS: Fix an error in unused dentry counting
2006-10-28 11:30:53 -07:00
dcookies.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
direct-io.c
[PATCH] lockdep: annotate direct io
2006-07-03 15:27:06 -07:00
dnotify.c
[PATCH] file: modify struct fown_struct to use a struct pid
2006-10-02 07:57:14 -07:00
dquot.c
[PATCH] dquot: add proper locking when using current->signal->tty
2006-09-29 09:18:14 -07:00
drop_caches.c
…
eventpoll.c
[PATCH] epoll_pwait()
2006-10-11 11:14:21 -07:00
exec.c
[PATCH] namespaces: utsname: switch to using uts namespaces
2006-10-02 07:57:21 -07:00
fcntl.c
[PATCH] file: Add locking to f_getown
2006-10-02 07:57:15 -07:00
fifo.c
[PATCH] pipe.c/fifo.c code cleanups
2006-04-11 13:53:33 +02:00
file_table.c
[PATCH] file: modify struct fown_struct to use a struct pid
2006-10-02 07:57:14 -07:00
file.c
WorkStruct: Pass the work_struct pointer instead of context data
2006-11-22 14:55:48 +00:00
filesystems.c
[PATCH] Ban register_filesystem(NULL);
2006-09-29 09:18:20 -07:00
fs-writeback.c
[PATCH] BLOCK: Remove dependence on existence of blockdev_superblock [try #6]
2006-09-30 20:52:26 +02:00
generic_acl.c
[PATCH] Generic infrastructure for acls
2006-09-29 09:18:24 -07:00
inode.c
[PATCH] Take i_mutex in splice_from_pipe()
2006-10-19 20:53:08 +02:00
inotify_user.c
[PATCH] inotify: fix deadlock found by lockdep
2006-07-31 13:28:41 -07:00
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
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
ioprio.c
[PATCH] block layer: ioprio_best function fix
2006-10-12 15:09:51 +02:00
Kconfig
Fix typos in doc and comments
2006-11-30 05:32:19 +01:00
Kconfig.binfmt
…
libfs.c
[PATCH] r/o bind mount prepwork: inc_nlink() helper
2006-10-01 00:39:30 -07:00
locks.c
[PATCH] file: modify struct fown_struct to use a struct pid
2006-10-02 07:57:14 -07:00
Makefile
[PATCH] jbd2: enable building of jbd2 and have ext4 use it rather than jbd
2006-10-11 11:14:16 -07:00
mbcache.c
[PATCH] mbcache: add lock annotation for __mb_cache_entry_release_unlock()
2006-09-29 09:18:07 -07:00
mpage.c
[PATCH] BLOCK: Dissociate generic_writepages() from mpage stuff [try #6]
2006-09-30 20:52:26 +02:00
namei.c
[PATCH] r/o bind mount prepwork: move open_namei()'s vfs_create()
2006-10-01 00:39:30 -07:00
namespace.c
[PATCH] namespaces: incorporate fs namespace into nsproxy
2006-10-02 07:57:20 -07:00
nfsctl.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
no-block.c
[PATCH] BLOCK: Make it possible to disable the block layer [try #6]
2006-09-30 20:52:31 +02:00
open.c
[PATCH] r/o bind mounts: prepare for write access checks: collapse if()
2006-10-01 00:39:30 -07:00
pipe.c
[PATCH] Some cleanup in the pipe code
2006-10-01 00:39:33 -07:00
pnode.c
[PATCH] core: use list_move()
2006-06-26 09:58:17 -07:00
pnode.h
…
posix_acl.c
[PATCH] kmemdup: some users
2006-10-01 00:39:19 -07:00
quota_v1.c
…
quota_v2.c
[PATCH] sem2mutex: quota
2006-03-23 07:38:11 -08:00
quota.c
[PATCH] BLOCK: Make it possible to disable the block layer [try #6]
2006-09-30 20:52:31 +02:00
read_write.c
[PATCH] Add vector AIO support
2006-10-01 00:39:29 -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
[PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers
2006-10-03 08:03:40 -07:00
select.c
[PATCH] enforce RLIMIT_NOFILE in poll()
2006-09-29 09:18:23 -07:00
seq_file.c
[PATCH] sem2mutex: fs/seq_file.c
2006-03-23 07:38:12 -08:00
splice.c
[PATCH] splice: fix problem introduced with inode diet
2006-11-04 08:45:39 -08:00
stat.c
[PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers
2006-10-03 08:03:40 -07:00
super.c
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
sync.c
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
utimes.c
[PATCH] severing fs.h, radix-tree.h -> sched.h
2006-12-04 02:00:24 -05:00
xattr_acl.c
…
xattr.c
[PATCH] Fix user.* xattr permission check for sticky dirs
2006-11-03 12:27:59 -08:00