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linux/fs
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Michael Halcrow e4465fdaeb eCryptfs: make ecryptfs_prepare_write decrypt the page 
When the page is not up to date, ecryptfs_prepare_write() should be
acting much like ecryptfs_readpage(). This includes the painfully
obvious step of actually decrypting the page contents read from the
lower encrypted file.

Note that this patch resolves a bug in eCryptfs in 2.6.24 that one can
produce with these steps:

# mount -t ecryptfs /secret /secret
# echo "abc" > /secret/file.txt
# umount /secret
# mount -t ecryptfs /secret /secret
# echo "def" >> /secret/file.txt
# cat /secret/file.txt

Without this patch, the resulting data returned from cat is likely to
be something other than "abc\ndef\n".

(Thanks to Benedikt Driessen for reporting this.)

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: Benedikt Driessen <bdriessen@escrypt.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04 16:35:16 -08:00
..
9p
Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p)
2008-02-07 08:42:26 -08:00
adfs
mount options: fix adfs
2008-02-08 09:22:39 -08:00
affs
mount options: fix affs
2008-02-08 09:22:39 -08:00
afs
Use path_put() in a few places instead of {mnt,d}put()
2008-02-14 21:13:33 -08:00
autofs
mount options: fix autofs
2008-02-08 09:22:40 -08:00
autofs4
Introduce path_put()
2008-02-14 21:13:33 -08:00
befs
mount options: fix befs
2008-02-08 09:22:40 -08:00
bfs
iget: stop BFS from using iget() and read_inode()
2008-02-07 08:42:27 -08:00
cifs
[CIFS] remove unused variable
2008-02-26 03:44:02 +00:00
coda
Introduce path_put()
2008-02-14 21:13:33 -08:00
configfs
Introduce path_put()
2008-02-14 21:13:33 -08:00
cramfs
fs/cramfs/inode.c: replace hardcoded value with preprocessor constant
2007-10-18 14:37:29 -07:00
debugfs
libfs: allow error return from simple attributes
2008-02-08 09:22:34 -08:00
devpts
mount options: fix devpts
2008-02-08 09:22:40 -08:00
dlm
dlm: fix rcom_names message to self
2008-02-21 15:19:54 -06:00
ecryptfs
eCryptfs: make ecryptfs_prepare_write decrypt the page
2008-03-04 16:35:16 -08:00
efs
efs: move headers out of include/linux/
2008-02-23 17:12:15 -08:00
exportfs
exportfs: update documentation
2007-10-22 08:13:21 -07:00
ext2
mount options: fix ext2
2008-02-08 09:22:40 -08:00
ext3
Introduce path_put()
2008-02-14 21:13:33 -08:00
ext4
ext4: add missing ext4_journal_stop()
2008-02-25 15:37:42 -05:00
fat
mount options: fix fat
2008-02-08 09:22:40 -08:00
freevxfs
iget: stop FreeVXFS from using iget() and read_inode()
2008-02-07 08:42:28 -08:00
fuse
fuse: fix permission checking
2008-02-23 17:12:13 -08:00
gfs2
Introduce path_put()
2008-02-14 21:13:33 -08:00
hfs
hfs: update comment to reflect actual init and exit routines
2008-02-06 10:41:05 -08:00
hfsplus
fs/hfsplus/unicode.c: fix uninitialized var warning
2008-02-08 09:22:36 -08:00
hostfs
uml: fix hostfs tv_usec calculations
2008-02-05 09:44:30 -08:00
hpfs
mount options: fix hpfs
2008-02-08 09:22:40 -08:00
hppfs
iget: stop HPPFS from using iget() and read_inode()
2008-02-07 08:42:29 -08:00
hugetlbfs
hugetlb: allow sticky directory mount option
2008-02-05 09:44:14 -08:00
isofs
mount options: fix isofs
2008-02-08 09:22:40 -08:00
jbd
docbook: fix filesystems.tmpl source files
2008-03-03 10:47:13 -08:00
jbd2
JBD2: Clear buffer_ordered flag for barried IO request on success
2008-02-10 01:09:32 -05:00
jffs2
Merge git://git.infradead.org/mtd-2.6
2008-02-07 10:20:31 -08:00
jfs
BKL-removal: Implement a compat_ioctl handler for JFS
2008-02-07 13:45:29 -06:00
lockd
Wrap buffers used for rpc debug printks into RPC_IFDEBUG
2008-02-21 18:42:29 -05:00
minix
iget: stop the MINIX filesystem from using iget() and read_inode()
2008-02-07 08:42:28 -08:00
msdos
…
ncpfs
mount options: fix ncpfs
2008-02-08 09:22:40 -08:00
nfs
Wrap buffers used for rpc debug printks into RPC_IFDEBUG
2008-02-21 18:42:29 -05:00
nfs_common
…
nfsd
Wrap buffers used for rpc debug printks into RPC_IFDEBUG
2008-02-21 18:42:29 -05:00
nls
sparse pointer use of zero as null
2007-10-18 14:37:31 -07:00
ntfs
is_vmalloc_addr(): Check if an address is within the vmalloc boundaries
2008-02-05 09:44:14 -08:00
ocfs2
[PATCH] fs/ocfs2/aops.c: Correct use of ! and &
2008-03-03 15:50:21 -08:00
openpromfs
iget: stop OPENPROMFS from using iget() and read_inode()
2008-02-07 08:42:29 -08:00
partitions
Enhanced partition statistics: remove old partition statistics
2008-02-08 12:42:01 +01:00
proc
block/genhd.c: proper externs
2008-03-04 11:28:36 +01:00
qnx4
iget: stop QNX4 from using iget() and read_inode()
2008-02-07 08:42:28 -08:00
ramfs
Remove valueless definition of hard-selected RAMFS option
2007-10-17 08:42:56 -07:00
reiserfs
fs/reiserfs/super.c: correct use of ! and &
2008-03-04 16:35:16 -08:00
romfs
iget: stop ROMFS from using iget() and read_inode()
2008-02-07 08:42:28 -08:00
smbfs
fs/smbfs/inode.c: fix warning message deprecating smbfs
2008-02-13 16:21:19 -08:00
sysfs
sysfs: remove BUG_ON() from sysfs_remove_group()
2008-02-07 11:31:46 -08:00
sysv
iget: stop the SYSV filesystem from using iget() and read_inode()
2008-02-07 08:42:29 -08:00
udf
udf: fix udf_add_free_space
2008-02-13 16:21:20 -08:00
ufs
ufs: fix parenthesisation in ufs_set_fs_state()
2008-02-23 17:12:13 -08:00
vfat
Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p)
2008-02-07 08:42:26 -08:00
xfs
[XFS] If you mount an XFS filesystem with no mount options at all, then
2008-02-28 20:37:56 -08:00
aio.c
aio: negative offset should return -EINVAL
2008-02-08 09:22:33 -08:00
anon_inodes.c
anon-inodes use open coded atomic_inc for the shared inode
2007-10-17 08:43:00 -07:00
attr.c
VFS: make notify_change pass ATTR_KILL_S*ID to setattr operations
2007-10-18 14:37:22 -07:00
bad_inode.c
iget: introduce a function to register iget failure
2008-02-07 08:42:26 -08:00
binfmt_aout.c
aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT
2008-02-08 09:22:30 -08:00
binfmt_elf_fdpic.c
pid namespaces: changes to show virtual ids to user
2007-10-19 11:53:40 -07:00
binfmt_elf.c
core dump: user_regset writeback
2008-03-04 16:35:10 -08:00
binfmt_em86.c
Convert files to UTF-8 and some cleanups
2007-10-19 23:21:04 +02:00
binfmt_flat.c
FLAT binaries: drop BINFMT_FLAT bad header magic warning
2008-02-14 20:58:05 -08:00
binfmt_misc.c
Convert files to UTF-8 and some cleanups
2007-10-19 23:21:04 +02:00
binfmt_script.c
Convert files to UTF-8 and some cleanups
2007-10-19 23:21:04 +02:00
binfmt_som.c
aout: remove unnecessary inclusions of {asm, linux}/a.out.h
2008-02-08 09:22:30 -08:00
bio.c
fs/block_dev.c: remove #if 0'ed code
2008-02-19 10:04:00 +01:00
block_dev.c
fs/block_dev.c: remove #if 0'ed code
2008-02-19 10:04:00 +01:00
buffer.c
vfs: fix NULL pointer dereference in fsync_buffers_list()
2008-03-04 16:35:10 -08:00
char_dev.c
fs/char_dev.c: chrdev_open marked static and removed from fs.h
2008-02-08 09:22:42 -08:00
compat_binfmt_elf.c
x86: compat_binfmt_elf
2008-01-30 13:31:46 +01:00
compat_ioctl.c
d_path: Make d_path() use a struct path
2008-02-14 21:17:09 -08:00
compat.c
Merge branch 'linus_origin' into hotfixes
2008-02-15 13:36:30 -05:00
dcache.c
dentries: Extract common code to remove dentry from lru
2008-02-14 21:17:09 -08:00
dcookies.c
d_path: Make d_path() use a struct path
2008-02-14 21:17:09 -08:00
direct-io.c
Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user
2008-02-05 09:44:13 -08:00
dnotify.c
…
dquot.c
Introduce path_put()
2008-02-14 21:13:33 -08:00
drop_caches.c
…
eventfd.c
fs/eventfd.c should #include <linux/syscalls.h>
2008-02-06 10:41:03 -08:00
eventpoll.c
lockdep: annotate epoll
2008-02-05 09:44:07 -08:00
exec.c
Allow ARG_MAX execve string space even with a small stack limit
2008-03-03 10:12:14 -08:00
fcntl.c
fs: remove fastcall, it is always empty
2008-02-08 09:22:31 -08:00
fifo.c
…
file_table.c
fs: remove fastcall, it is always empty
2008-02-08 09:22:31 -08:00
file.c
get rid of NR_OPEN and introduce a sysctl_nr_open
2008-02-06 10:41:06 -08:00
filesystems.c
…
fs-writeback.c
writeback: speed up writeback of big dirty files
2008-02-05 09:44:19 -08:00
generic_acl.c
…
inode.c
iget: remove iget() and the read_inode() super op as being obsolete
2008-02-07 08:42:29 -08:00
inotify_user.c
Introduce path_put()
2008-02-14 21:13:33 -08:00
inotify.c
inotify: remove debug code
2008-02-06 10:41:07 -08:00
internal.h
…
ioctl.c
fix up kerneldoc in fs/ioctl.c a little bit
2008-02-09 11:08:33 -08:00
ioprio.c
cfq-iosched: relax IOPRIO_CLASS_IDLE restrictions
2008-01-28 11:38:15 +01:00
Kconfig
deprecate smbfs in favour of cifs
2008-02-05 14:37:15 -08:00
Kconfig.binfmt
aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT
2008-02-08 09:22:30 -08:00
libfs.c
Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user
2008-02-05 09:44:13 -08:00
locks.c
Pidns: make full use of xxx_vnr() calls
2008-02-08 09:22:29 -08:00
Makefile
x86: compat_binfmt_elf Kconfig
2008-01-30 13:31:46 +01:00
mbcache.c
fs: Fix to correct the mbcache entries counter
2007-10-25 15:18:29 -07:00
mpage.c
docbook: fix filesystems.tmpl source files
2008-03-03 10:47:13 -08:00
namei.c
Use struct path in fs_struct
2008-02-14 21:13:33 -08:00
namespace.c
d_path: Make seq_path() use a struct path argument
2008-02-14 21:17:08 -08:00
nfsctl.c
Introduce path_put()
2008-02-14 21:13:33 -08:00
no-block.c
…
open.c
Make set_fs_{root,pwd} take a struct path
2008-02-14 21:13:33 -08:00
pipe.c
kernel-doc: fix fs/pipe.c notation
2008-02-13 16:21:19 -08:00
pnode.c
MNT_UNBINDABLE fix
2008-02-06 10:41:02 -08:00
pnode.h
[PATCH] new helpers - collect_mounts() and release_collected_mounts()
2007-10-21 02:37:25 -04:00
posix_acl.c
…
quota_v1.c
…
quota_v2.c
…
quota.c
Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p)
2008-02-07 08:42:26 -08:00
read_write.c
remove the unused exports of sys_open/sys_read
2008-02-08 09:22:36 -08:00
read_write.h
…
readdir.c
Use mutex_lock_killable in vfs_readdir
2007-12-06 17:39:54 -05:00
select.c
make sys_poll() wait at least timeout ms
2008-02-06 10:41:09 -08:00
seq_file.c
d_path: Make d_path() use a struct path
2008-02-14 21:17:09 -08:00
signalfd.c
fs/signalfd.c should #include <linux/syscalls.h>
2008-02-06 10:41:03 -08:00
splice.c
splice: only return -EAGAIN if there's hope of more data
2008-03-04 11:14:39 +01:00
stack.c
…
stat.c
Introduce path_put()
2008-02-14 21:13:33 -08:00
super.c
quota: turn quotas off when remounting read-only
2008-02-08 09:22:44 -08:00
sync.c
…
timerfd.c
timerfd: new timerfd API
2008-02-05 09:44:07 -08:00
utimes.c
Introduce path_put()
2008-02-14 21:13:33 -08:00
xattr_acl.c
…
xattr.c
Introduce path_put()
2008-02-14 21:13:33 -08:00