linux/fs/ext4
Theodore Ts'o 027f14f535 ext4: don't try to processed freed blocks until mballoc is initialized
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 2d01ddc866 ("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>
2021-02-02 23:16:01 -05:00
..
acl.c ext4: main fast-commit commit path 2020-10-21 23:22:37 -04:00
acl.h
balloc.c ext4: use ASSERT() to replace J_ASSERT() 2020-12-03 09:36:57 -05:00
bitmap.c
block_validity.c ext4: standardize error message in ext4_protect_reserved_inode() 2020-12-17 13:30:55 -05:00
dir.c f2fs-for-5.11-rc1 2020-12-17 11:18:00 -08:00
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: drop ext4_handle_dirty_super() 2020-12-22 13:08:46 -05:00
ext4_jbd2.h ext4: drop ext4_handle_dirty_super() 2020-12-22 13:08:46 -05:00
ext4.h Various bug fixes and cleanups for ext4; no new features this cycle. 2020-12-24 14:16:02 -08:00
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 2020-12-17 13:30:32 -05:00
fast_commit.c ext4: remove expensive flush on fast commit 2021-01-15 14:41:31 -05:00
fast_commit.h ext4: make fast_commit.h byte identical with e2fsprogs/fast_commit.h 2020-12-17 13:30:45 -05:00
file.c ext4: don't leak old mountpoint samples 2020-12-22 13:08:46 -05:00
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: use ASSERT() to replace J_ASSERT() 2020-12-03 09:36:57 -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 ASSERT() to replace J_ASSERT() 2020-12-03 09:36:57 -05:00
inline.c ext4: unlock xattr_sem properly in ext4_inline_data_truncate() 2020-11-06 22:52:36 -05:00
inode-test.c fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature 2020-12-02 16:07:25 -07:00
inode.c ext4: drop ext4_handle_dirty_super() 2020-12-22 13:08:46 -05:00
ioctl.c A number of bug fixes for ext4: 2021-01-15 14:54:24 -08:00
Kconfig ext4: replace HTTP links with HTTPS ones 2020-08-06 01:01:57 -04:00
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 2020-12-22 13:08:45 -05:00
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 A number of bug fixes for ext4: 2021-01-15 14:54:24 -08:00
page-io.c ext4: remove unnecessary wbc parameter from ext4_bio_write_page 2020-12-22 13:08:45 -05:00
readpage.c Improvements to ext4's block allocator performance for very large file 2020-08-21 11:03:38 -07:00
resize.c ext4: drop ext4_handle_dirty_super() 2020-12-22 13:08:46 -05:00
super.c ext4: don't try to processed freed blocks until mballoc is initialized 2021-02-02 23:16:01 -05:00
symlink.c
sysfs.c block: switch partition lookup to use struct block_device 2020-12-01 14:53:40 -07:00
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 ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c
xattr_user.c
xattr.c ext4: drop ext4_handle_dirty_super() 2020-12-22 13:08:46 -05:00
xattr.h ext4: support xattr gnu.* namespace for the Hurd 2020-06-12 13:23:34 -04:00