Eric Biggers ba63f23d69 fscrypto: require write access to mount to set encryption policy ... Since setting an encryption policy requires writing metadata to the filesystem, it should be guarded by mnt_want_write/mnt_drop_write. Otherwise, a user could cause a write to a frozen or readonly filesystem. This was handled correctly by f2fs but not by ext4. Make fscrypt_process_policy() handle it rather than relying on the filesystem to get it right. Signed-off-by: Eric Biggers <ebiggers@google.com> Cc: stable@vger.kernel.org # 4.1+; check fs/{ext4,f2fs} Signed-off-by: Theodore Ts'o <tytso@mit.edu> Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>		2016-09-10 01:18:57 -04:00
..
acl.c	posix_acl: Inode acl caching fixes	2016-03-31 00:30:15 -04:00
acl.h	ext2/3/4: use generic posix ACL infrastructure	2014-01-25 23:58:19 -05:00
balloc.c	The major change this cycle is deleting ext4's copy of the file system	2016-07-26 18:35:55 -07:00
bitmap.c	ext4: remove unused header files	2015-04-02 23:47:42 -04:00
block_validity.c	ext4: call out CRC and corruption errors with specific error codes	2015-10-17 16:16:04 -04:00
dir.c	ext4 crypto: migrate into vfs's crypto engine	2016-07-10 14:01:03 -04:00
ext4_extents.h	ext4: fix misspellings in comments.	2016-03-09 23:49:05 -05:00
ext4_jbd2.c	ext4: fix potential use after free in __ext4_journal_stop	2015-10-17 22:57:06 -04:00
ext4_jbd2.h	ext4: optimize ext4_should_retry_alloc() to improve ENOSPC performance	2016-06-26 18:24:01 -04:00
ext4.h	ext4 crypto: migrate into vfs's crypto engine	2016-07-10 14:01:03 -04:00
extents_status.c	ext4: remove trailing \n from ext4_warning/ext4_error calls	2016-04-27 01:11:21 -04:00
extents_status.h	ext4: move procfs registration code to fs/ext4/sysfs.c	2015-09-23 12:46:17 -04:00
extents.c	ext4: verify extent header depth	2016-07-15 00:22:07 -04:00
file.c	Merge branch 'akpm' (patches from Andrew)	2016-07-26 19:55:54 -07:00
fsync.c	ext4: respect the nobarrier mount option in nojournal mode	2016-06-26 18:25:01 -04:00
hash.c	ext4: remove unused header files	2015-04-02 23:47:42 -04:00
ialloc.c	The major change this cycle is deleting ext4's copy of the file system	2016-07-26 18:35:55 -07:00
indirect.c	ext4: refactor direct IO code	2016-05-13 00:44:16 -04:00
inline.c	ext4 crypto: migrate into vfs's crypto engine	2016-07-10 14:01:03 -04:00
inode.c	Fix bugs that could cause kernel deadlocks or file system corruption	2016-08-29 12:37:11 -07:00
ioctl.c	fscrypto: require write access to mount to set encryption policy	2016-09-10 01:18:57 -04:00
Kconfig	ext4 crypto: migrate into vfs's crypto engine	2016-07-10 14:01:03 -04:00
Makefile	ext4 crypto: migrate into vfs's crypto engine	2016-07-10 14:01:03 -04:00
mballoc.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-07-28 12:59:05 -07:00
mballoc.h	ext4: fix compile error while opening the macro DOUBLE_CHECK	2016-03-13 17:18:12 -04:00
migrate.c	ext4: fix misspellings in comments.	2016-03-09 23:49:05 -05:00
mmp.c	fs: have submit_bh users pass in op and flags separately	2016-06-07 13:41:38 -06:00
move_extent.c	ext4: do not ask jbd2 to write data for delalloc buffers	2016-04-24 00:56:08 -04:00
namei.c	The major change this cycle is deleting ext4's copy of the file system	2016-07-26 18:35:55 -07:00
page-io.c	The major change this cycle is deleting ext4's copy of the file system	2016-07-26 18:35:55 -07:00
readpage.c	Merge branch 'akpm' (patches from Andrew)	2016-07-26 19:55:54 -07:00
resize.c	ext4: remove trailing \n from ext4_warning/ext4_error calls	2016-04-27 01:11:21 -04:00
super.c	Fix bugs that could cause kernel deadlocks or file system corruption	2016-08-29 12:37:11 -07:00
symlink.c	ext4 crypto: migrate into vfs's crypto engine	2016-07-10 14:01:03 -04:00
sysfs.c	drop redundant ->owner initializations	2016-05-29 19:08:00 -04:00
truncate.h	ext4: fix races between page faults and hole punching	2015-12-07 14:28:03 -05:00
xattr_security.c	switch xattr_handler->set() to passing dentry and inode separately	2016-05-27 15:39:43 -04:00
xattr_trusted.c	switch xattr_handler->set() to passing dentry and inode separately	2016-05-27 15:39:43 -04:00
xattr_user.c	switch xattr_handler->set() to passing dentry and inode separately	2016-05-27 15:39:43 -04:00
xattr.c	ext4: avoid deadlock when expanding inode size	2016-08-11 12:38:55 -04:00
xattr.h	ext4: reserve xattr index for the Hurd	2016-07-31 23:38:36 -04:00