Jan Kara a056bdaae7 ext4: fix data corruption for mmap writes ... mpage_submit_page() can race with another process growing i_size and writing data via mmap to the written-back page. As mpage_submit_page() samples i_size too early, it may happen that ext4_bio_write_page() zeroes out too large tail of the page and thus corrupts user data. Fix the problem by sampling i_size only after the page has been write-protected in page tables by clear_page_dirty_for_io() call. Reported-by: Michael Zimmer <michael@swarm64.com> CC: stable@vger.kernel.org Fixes: cb20d51883 Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2017-05-26 17:45:45 -04:00
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acl.c	ext4: fix quota charging for shared xattr blocks	2017-05-24 18:24:07 -04:00
acl.h
balloc.c
bitmap.c
block_validity.c	ext4: add missing KERN_CONT to a few more debugging uses	2016-10-15 09:57:31 -04:00
dir.c
ext4.h	ext4: remove unused d_name argument from ext4_search_dir() et al.	2017-05-24 18:10:49 -04:00
ext4_extents.h
ext4_jbd2.c	ext4: add shutdown bit and check for it	2017-02-05 01:28:48 -05:00
ext4_jbd2.h	ext4: do not perform data journaling when data is encrypted	2016-12-10 17:54:58 -05:00
extents.c	ext4: fix data corruption with EXT4_GET_BLOCKS_ZERO	2017-05-26 17:40:52 -04:00
extents_status.c	scripts/spelling.txt: add "comsume(r)" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
extents_status.h
file.c	ext4: fix off-by-one on max nr_pages in ext4_find_unwritten_pgoff()	2017-05-24 18:02:20 -04:00
fsmap.c	ext4: support GETFSMAP ioctls	2017-04-30 00:36:53 -04:00
fsmap.h	ext4: support GETFSMAP ioctls	2017-04-30 00:36:53 -04:00
fsync.c	ext4: add shutdown bit and check for it	2017-02-05 01:28:48 -05:00
hash.c	ext4: move halfmd4 into hash.c directly	2017-02-02 11:52:14 -05:00
ialloc.c	ext4: inherit encryption xattr before other xattrs	2017-05-02 00:49:54 -04:00
indirect.c
inline.c	ext4: remove unused d_name argument from ext4_search_dir() et al.	2017-05-24 18:10:49 -04:00
inode.c	ext4: fix data corruption for mmap writes	2017-05-26 17:45:45 -04:00
ioctl.c	Add GETFSMAP support; some performance improvements for very large	2017-05-08 11:30:05 -07:00
Kconfig	dax: fix build warnings with FS_DAX and !FS_IOMAP	2017-01-24 16:26:14 -08:00
Makefile	ext4: support GETFSMAP ioctls	2017-04-30 00:36:53 -04:00
mballoc.c	ext4: handle the rest of ext4_mb_load_buddy() ENOMEM errors	2017-05-21 22:35:23 -04:00
mballoc.h	ext4: support GETFSMAP ioctls	2017-04-30 00:36:53 -04:00
migrate.c
mmp.c	block,fs: use REQ_* flags directly	2016-11-01 09:43:26 -06:00
move_extent.c	Fix a memory leak on an error path, and two races when modifying	2017-03-26 10:29:21 -07:00
namei.c	ext4: remove unused d_name argument from ext4_search_dir() et al.	2017-05-24 18:10:49 -04:00
page-io.c	ext4: replace BUG_ON with WARN_ONCE in ext4_end_bio()	2017-04-30 20:08:05 -04:00
readpage.c
resize.c	ext4: rename s_resize_flags to s_ext4_flags	2017-02-05 01:27:48 -05:00
super.c	ext4: fix quota charging for shared xattr blocks	2017-05-24 18:24:07 -04:00
symlink.c	ext4: Add statx support	2017-04-03 01:05:58 -04:00
sysfs.c	ext4: constify static data that is never modified	2017-04-29 23:47:50 -04:00
truncate.h
xattr.c	ext4: fix quota charging for shared xattr blocks	2017-05-24 18:24:07 -04:00
xattr.h	ext4: fix deadlock between inline_data and ext4_expand_extra_isize_ea()	2017-01-11 21:50:46 -05:00
xattr_security.c
xattr_trusted.c
xattr_user.c