Theodore Ts'o 64578f9417 ext4: don't try to processed freed blocks until mballoc is initialized ... [ Upstream commit 027f14f5357279655c3ebc6d14daff8368d4f53f ] If we try to make any changes via the journal between when the journal is initialized, but before the multi-block allocated is initialized, we will end up deferencing a NULL pointer when the journal commit callback function calls ext4_process_freed_data(). The proximate cause of this failure was commit 2d01ddc86606 ("ext4: save error info to sb through journal if available") since file system corruption problems detected before the call to ext4_mb_init() would result in a journal commit before we aborted the mount of the file system.... and we would then trigger the NULL pointer deref. Link: https://lore.kernel.org/r/YAm8qH/0oo2ofSMR@mit.edu Reported-by: Murphy Zhou <jencce.kernel@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-03-17 17:06:25 +01:00
..
acl.c	ext4: main fast-commit commit path	2020-10-21 23:22:37 -04:00
acl.h
balloc.c	ext4: fast commit recovery path	2020-10-21 23:22:38 -04:00
bitmap.c
block_validity.c	ext4: rename system_blks to s_system_blks inside ext4_sb_info	2020-10-18 10:36:59 -04:00
dir.c	ext4: use generic casefolding support	2020-10-28 13:43:13 -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: fast commit recovery path	2020-10-21 23:22:38 -04:00
ext4_jbd2.h	ext4: drop ext4_journal_free_reserved()	2020-06-03 23:16:53 -04:00
ext4.h	ext4: fix bogus warning in ext4_update_dx_flag()	2020-11-19 22:41:10 -05:00
extents_status.c	ext4: fast commit recovery path	2020-10-21 23:22:38 -04:00
extents_status.h	ext4: fix extent_status trace points	2020-01-25 02:03:03 -05:00
extents.c	ext4: fix an IS_ERR() vs NULL check	2020-12-30 11:54:13 +01:00
fast_commit.c	ext4: fix wrong list_splice in ext4_fc_cleanup	2021-01-19 18:27:19 +01:00
fast_commit.h	ext4: disable fast commit with data journalling	2020-11-06 23:01:05 -05:00
file.c	ext4: don't leak old mountpoint samples	2021-01-19 18:27:22 +01:00
fsmap.c	jbd2: rename j_maxlen to j_total_len and add jbd2_journal_max_txn_bufs	2020-11-06 23:01:02 -05:00
fsmap.h
fsync.c	ext4: make s_mount_flags modifications atomic	2020-11-06 23:01:05 -05:00
hash.c	ext4: use generic casefolding support	2020-10-28 13:43:13 -04:00
ialloc.c	The siginificant new ext4 feature this time around is Harshad's new	2020-10-22 10:31:08 -07:00
indirect.c	ext4: use ext4_sb_bread() instead of sb_bread()	2020-10-18 10:37:14 -04:00
inline.c	ext4: unlock xattr_sem properly in ext4_inline_data_truncate()	2020-11-06 22:52:36 -05:00
inode-test.c	kunit: allow kunit tests to be loaded as a module	2020-01-09 16:42:29 -07:00
inode.c	ext4: fix deadlock with fs freezing and EA inodes	2020-12-30 11:54:13 +01:00
ioctl.c	ext4: fix superblock checksum failure when setting password salt	2021-01-19 18:27:31 +01:00
Kconfig	ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it	2021-03-04 11:38:15 +01:00
Makefile	ext4 / jbd2: add fast commit initialization	2020-10-21 23:22:26 -04:00
mballoc.c	ext4: avoid s_mb_prefetch to be zero in individual scenarios	2021-01-06 14:56:56 +01:00
mballoc.h	ext4: limit the length of per-inode prealloc list	2020-08-19 12:04:36 -04:00
migrate.c	ext4: handle ext4_mark_inode_dirty errors	2020-06-03 23:16:50 -04:00
mmp.c	ext4: use common helpers in all places reading metadata buffers	2020-10-18 10:37:14 -04:00
move_extent.c	ext4: use common helpers in all places reading metadata buffers	2020-10-18 10:37:14 -04:00
namei.c	ext4: fix potential htree index checksum corruption	2021-03-04 11:38:13 +01:00
page-io.c	ext4: add inline encryption support	2020-07-08 10:29:43 -07:00
readpage.c	Improvements to ext4's block allocator performance for very large file	2020-08-21 11:03:38 -07:00
resize.c	ext4: use ext4_sb_bread() instead of sb_bread()	2020-10-18 10:37:14 -04:00
super.c	ext4: don't try to processed freed blocks until mballoc is initialized	2021-03-17 17:06:25 +01:00
symlink.c
sysfs.c	ext4: indicate that fast_commit is available via /sys/fs/ext4/feature/...	2020-10-28 13:43:22 -04:00
truncate.h	ext4: handle layout changes to pinned DAX mappings	2018-07-29 17:00:22 -04:00
verity.c	mm/readahead: make page_cache_ra_unbounded take a readahead_control	2020-10-16 11:11:16 -07:00
xattr_hurd.c	ext4: support xattr gnu.* namespace for the Hurd	2020-06-12 13:23:34 -04:00
xattr_security.c
xattr_trusted.c
xattr_user.c
xattr.c	ext4: main fast-commit commit path	2020-10-21 23:22:37 -04:00
xattr.h	ext4: support xattr gnu.* namespace for the Hurd	2020-06-12 13:23:34 -04:00