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b47820edd1
linux/fs/ext4
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Daeho Jeong b47820edd1 ext4: avoid modifying checksum fields directly during checksum verification 
We temporally change checksum fields in buffers of some types of
metadata into '0' for verifying the checksum values. By doing this
without locking the buffer, some metadata's checksums, which are
being committed or written back to the storage, could be damaged.
In our test, several metadata blocks were found with damaged metadata
checksum value during recovery process. When we only verify the
checksum value, we have to avoid modifying checksum fields directly.

Signed-off-by: Daeho Jeong <daeho.jeong@samsung.com>
Signed-off-by: Youngjin Gil <youngjin.gil@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
2016-07-03 17:51:39 -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 ext4: optimize ext4_should_retry_alloc() to improve ENOSPC performance 2016-06-26 18:24:01 -04:00
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
crypto_fname.c ext4: Use skcipher 2016-01-27 20:35:55 +08:00
crypto_key.c ext4: Use skcipher 2016-01-27 20:35:55 +08:00
crypto_policy.c ext4 crypto: replace some BUG_ON()'s with error checks 2015-10-03 10:49:27 -04:00
crypto.c ext4/fscrypto: avoid RCU lookup in d_revalidate 2016-04-12 20:01:35 -07:00
dir.c Fix a number of bugs, most notably a potential stale data exposure 2016-05-24 12:55:26 -07:00
ext4_crypto.h ext4: Use skcipher 2016-01-27 20:35:55 +08:00
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: optimize ext4_should_retry_alloc() to improve ENOSPC performance 2016-06-26 18:24:01 -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: check for extents that wrap around 2016-06-30 11:53:46 -04:00
file.c DAX error handling for 4.7 2016-05-26 19:34:26 -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 ext4: clean up error handling when orphan list is corrupted 2016-04-30 00:49:54 -04:00
indirect.c ext4: refactor direct IO code 2016-05-13 00:44:16 -04:00
inline.c ext4: remove trailing \n from ext4_warning/ext4_error calls 2016-04-27 01:11:21 -04:00
inode.c ext4: avoid modifying checksum fields directly during checksum verification 2016-07-03 17:51:39 -04:00
ioctl.c Fix a number of bugs, most notably a potential stale data exposure 2016-05-24 12:55:26 -07:00
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: optimize ext4_should_retry_alloc() to improve ENOSPC performance 2016-06-26 18:24:01 -04:00
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 ext4: remove trailing \n from ext4_warning/ext4_error calls 2016-04-27 01:11:21 -04:00
move_extent.c ext4: do not ask jbd2 to write data for delalloc buffers 2016-04-24 00:56:08 -04:00
namei.c ext4: avoid modifying checksum fields directly during checksum verification 2016-07-03 17:51:39 -04:00
page-io.c ext4: remove unnecessary bio get/put 2016-05-05 22:09:49 -04:00
readpage.c These changes contains a fix for overlayfs interacting with some 2016-04-07 17:22:20 -07:00
resize.c ext4: remove trailing \n from ext4_warning/ext4_error calls 2016-04-27 01:11:21 -04:00
super.c ext4: avoid modifying checksum fields directly during checksum verification 2016-07-03 17:51:39 -04:00
symlink.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
sysfs.c ext4: add "static" to ext4_seq_##name##_fops struct 2015-11-26 15:52:24 -05:00
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 modifying checksum fields directly during checksum verification 2016-07-03 17:51:39 -04:00
xattr.h mbcache2: rename to mbcache 2016-02-22 22:35:22 -05:00