Eric Sandeen 5872331b3d ext4: fix potential negative array index in do_split() ... If for any reason a directory passed to do_split() does not have enough active entries to exceed half the size of the block, we can end up iterating over all "count" entries without finding a split point. In this case, count == move, and split will be zero, and we will attempt a negative index into map[]. Guard against this by detecting this case, and falling back to split-to-half-of-count instead; in this case we will still have plenty of space (> half blocksize) in each split block. Fixes: ef2b02d3e6 ("ext34: ensure do_split leaves enough free space in both blocks") Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/f53e246b-647c-64bb-16ec-135383c70ad7@redhat.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2020-08-06 00:11:16 -04:00
..
acl.c	ext4: handle ext4_mark_inode_dirty errors	2020-06-03 23:16:50 -04:00
acl.h	ext4: fix up remaining files with SPDX cleanups	2017-12-17 22:00:59 -05:00
balloc.c	ext4: balloc: use task_pid_nr() helper	2020-06-03 23:16:52 -04:00
bitmap.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
block_validity.c	ext4: save all error info in save_error_info() and drop ext4_set_errno()	2020-04-01 17:29:06 -04:00
dir.c	ext4: avoid utf8_strncasecmp() with unstable name	2020-06-11 11:01:33 -04:00
ext4_extents.h	ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max	2020-06-03 23:16:49 -04:00
ext4_jbd2.c	ext4: remove set but not used variable 'es' in ext4_jbd2.c	2020-04-15 23:58:49 -04:00
ext4_jbd2.h	ext4: drop ext4_journal_free_reserved()	2020-06-03 23:16:53 -04:00
ext4.h	This is the second round of ext4 commits for 5.8 merge window. It	2020-06-15 09:32:10 -07:00
extents_status.c	ext4: remove unnecessary comparisons to bool	2020-06-03 23:16:49 -04:00
extents_status.h	ext4: fix extent_status trace points	2020-01-25 02:03:03 -05:00
extents.c	ext4: delete unnecessary checks before brelse()	2020-08-06 00:08:56 -04:00
file.c	ext4: fix coding style in file.c	2020-08-06 00:11:15 -04:00
fsmap.c	ext4: fix miscellaneous sparse warnings	2019-05-12 04:49:47 -04:00
fsmap.h	ext4: fix up remaining files with SPDX cleanups	2017-12-17 22:00:59 -05:00
fsync.c	A lot of bug fixes and cleanups for ext4, including:	2020-06-05 16:19:28 -07:00
hash.c	ext4: fix kernel oops caused by spurious casefold flag	2019-09-03 01:43:17 -04:00
ialloc.c	This is the second round of ext4 commits for 5.8 merge window. It	2020-06-15 09:32:10 -07:00
indirect.c	ext4: handle ext4_mark_inode_dirty errors	2020-06-03 23:16:50 -04:00
inline.c	ext4: handle ext4_mark_inode_dirty errors	2020-06-03 23:16:50 -04:00
inode-test.c	kunit: allow kunit tests to be loaded as a module	2020-01-09 16:42:29 -07:00
inode.c	This is the second round of ext4 commits for 5.8 merge window. It	2020-06-15 09:32:10 -07:00
ioctl.c	Enable ext4 support for per-file/directory dax operations	2020-06-11 10:51:44 -04:00
Kconfig	linux-kselftest-kunit-5.8-rc1	2020-06-09 10:04:47 -07:00
Makefile	ext4: support xattr gnu.* namespace for the Hurd	2020-06-12 13:23:34 -04:00
mballoc.c	ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr	2020-06-11 11:03:26 -04:00
mballoc.h	ext4: mballoc: make mb_debug() implementation to use pr_debug()	2020-06-03 23:16:52 -04:00
migrate.c	ext4: handle ext4_mark_inode_dirty errors	2020-06-03 23:16:50 -04:00
mmp.c	ext4: save all error info in save_error_info() and drop ext4_set_errno()	2020-04-01 17:29:06 -04:00
move_extent.c	ext4: save all error info in save_error_info() and drop ext4_set_errno()	2020-04-01 17:29:06 -04:00
namei.c	ext4: fix potential negative array index in do_split()	2020-08-06 00:11:16 -04:00
page-io.c	fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t	2020-03-28 13:21:08 +01:00
readpage.c	ext4: pass the inode to ext4_mpage_readpages	2020-06-02 10:59:07 -07:00
resize.c	ext4: fix potential race between s_flex_groups online resizing and access	2020-02-21 19:31:46 -05:00
super.c	This is the second round of ext4 commits for 5.8 merge window. It	2020-06-15 09:32:10 -07:00
symlink.c	ext4: switch to fscrypt_get_symlink()	2018-01-11 22:10:40 -05:00
sysfs.c	fscrypt: support test_dummy_encryption=v2	2020-05-18 20:21:48 -07:00
truncate.h	ext4: handle layout changes to pinned DAX mappings	2018-07-29 17:00:22 -04:00
verity.c	This is the second round of ext4 commits for 5.8 merge window. It	2020-06-15 09:32:10 -07:00
xattr_hurd.c	ext4: support xattr gnu.* namespace for the Hurd	2020-06-12 13:23:34 -04:00
xattr_security.c	ext4: use XATTR_CREATE in ext4_initxattrs()	2018-05-10 11:52:14 -04:00
xattr_trusted.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xattr_user.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xattr.c	ext4: delete unnecessary checks before brelse()	2020-08-06 00:08:56 -04:00
xattr.h	ext4: support xattr gnu.* namespace for the Hurd	2020-06-12 13:23:34 -04:00