Hongjie Fang da612a5ae7 fscrypt: don't set policy for a dead directory ... commit 5858bdad4d0d0fc18bf29f34c3ac836e0b59441f upstream. The directory may have been removed when entering fscrypt_ioctl_set_policy(). If so, the empty_dir() check will return error for ext4 file system. ext4_rmdir() sets i_size = 0, then ext4_empty_dir() reports an error because 'inode->i_size < EXT4_DIR_REC_LEN(1) + EXT4_DIR_REC_LEN(2)'. If the fs is mounted with errors=panic, it will trigger a panic issue. Add the check IS_DEADDIR() to fix this problem. Fixes: 9bd8212f98 ("ext4 crypto: add encryption policy and password salt support") Cc: <stable@vger.kernel.org> # v4.1+ Signed-off-by: Hongjie Fang <hongjiefang@asrmicro.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-07-21 09:07:10 +02:00
..
acl.c	ext4: Don't clear SGID when inheriting ACLs	2017-10-12 11:27:35 +02:00
acl.h
balloc.c	ext4: check for allocation block validity with block group locked	2018-08-06 16:24:40 +02:00
bitmap.c
block_validity.c	ext4: call out CRC and corruption errors with specific error codes	2015-10-17 16:16:04 -04:00
crypto.c	ext4 crypto: don't let data integrity writebacks fail with ENOMEM	2017-05-25 14:30:11 +02:00
crypto_fname.c	fscrypt: avoid collisions when presenting long encrypted filenames	2017-05-25 14:30:11 +02:00
crypto_key.c	fscrypt: lock mutex before checking for bounce page pool	2017-11-30 08:37:25 +00:00
crypto_policy.c	fscrypt: don't set policy for a dead directory	2019-07-21 09:07:10 +02:00
dir.c	ext4: avoid divide by zero fault when deleting corrupted inline directories	2018-09-29 03:08:53 -07:00
ext4.h	ext4: avoid running out of journal credits when appending to an inline file	2018-11-21 09:27:36 +01:00
ext4_crypto.h	fscrypt: remove broken support for detecting keyring key revocation	2017-03-31 09:49:54 +02:00
ext4_extents.h	ext4: verify the depth of extent tree in ext4_find_extent()	2018-07-11 16:03:48 +02:00
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: fix NULL pointer dereference while journal is aborted	2019-04-03 06:23:15 +02:00
extents.c	ext4: zero out the unused memory region in the extent tree block	2019-06-11 12:23:42 +02:00
extents_status.c	ext4: move procfs registration code to fs/ext4/sysfs.c	2015-09-23 12:46:17 -04:00
extents_status.h	ext4: move procfs registration code to fs/ext4/sysfs.c	2015-09-23 12:46:17 -04:00
file.c	ext4: fix data corruption caused by unaligned direct AIO	2019-04-03 06:23:15 +02:00
fsync.c
hash.c
ialloc.c	ext4: fix check to prevent initializing reserved inodes	2018-08-15 17:42:04 +02:00
indirect.c	ext4: cleanup bh release code in ext4_ind_remove_space()	2019-04-27 09:33:47 +02:00
inline.c	ext4: fix a potential fiemap/page fault deadlock w/ inline_data	2019-01-16 22:16:12 +01:00
inode.c	ext4: do not delete unlinked inode from orphan list on failed truncate	2019-06-11 12:23:50 +02:00
ioctl.c	ext4: actually request zeroing of inode table after grow	2019-06-11 12:23:38 +02:00
Kconfig	ext4: Update EXT4_USE_FOR_EXT2 description	2015-09-24 13:27:47 +02:00
Makefile	ext4: move sysfs code from super.c to fs/ext4/sysfs.c	2015-09-23 12:44:17 -04:00
mballoc.c	ext4: fix spectre gadget in ext4_mb_regular_allocator()	2018-08-24 13:27:00 +02:00
mballoc.h
migrate.c	ext4: clean up feature test macros with predicate functions	2015-10-17 16:18:43 -04:00
mmp.c	ext4: don't mark mmp buffer head dirty	2018-09-29 03:08:54 -07:00
move_extent.c	ext4: fix argument checking in EXT4_IOC_MOVE_EXT	2018-11-21 09:27:33 +01:00
namei.c	ext4: fix buffer leak in __ext4_read_dirblock() on error path	2018-11-21 09:27:44 +01:00
page-io.c	ext4 crypto: fix some error handling	2017-05-25 14:30:11 +02:00
readpage.c	ext4 crypto: don't let data integrity writebacks fail with ENOMEM	2017-05-25 14:30:11 +02:00
resize.c	ext4: report real fs size after failed resize	2019-04-27 09:33:56 +02:00
super.c	ext4: fix ext4_show_options for file systems w/o journal	2019-06-11 12:23:38 +02:00
symlink.c	don't put symlink bodies in pagecache into highmem	2018-02-16 20:09:38 +01:00
sysfs.c	ext4: sysfs: print ext4_super_block fields as little-endian	2018-09-05 09:18:38 +02:00
truncate.h	ext4: fix races between page faults and hole punching	2016-05-04 14:48:53 -07:00
xattr.c	ext4: fix buffer leak in ext4_xattr_move_to_block() on error path	2018-11-21 09:27:43 +01:00
xattr.h	ext4: fix deadlock between inline_data and ext4_expand_extra_isize_ea()	2018-04-24 09:32:10 +02:00
xattr_security.c	xattr handlers: Pass handler to operations instead of flags	2015-11-13 20:34:32 -05:00
xattr_trusted.c	xattr handlers: Pass handler to operations instead of flags	2015-11-13 20:34:32 -05:00
xattr_user.c	xattr handlers: Pass handler to operations instead of flags	2015-11-13 20:34:32 -05:00