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9819403055
linux/fs/f2fs
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Chao Yu 9819403055 f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() 
If inode is newly created, inode page may not synchronize with inode cache,
so fields like .i_inline or .i_extra_isize could be wrong, in below call
path, we may access such wrong fields, result in failing to migrate valid
target block.

Thread A				Thread B
- f2fs_create
 - f2fs_add_link
  - f2fs_add_dentry
   - f2fs_init_inode_metadata
    - f2fs_add_inline_entry
     - f2fs_new_inode_page
     - f2fs_put_page
     : inode page wasn't updated with inode cache
					- gc_data_segment
					 - is_alive
					  - f2fs_get_node_page
					  - datablock_addr
					   - offset_in_addr
					   : access uninitialized fields

Fixes: 7a2af766af ("f2fs: enhance on-disk inode structure scalability")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2019-09-16 08:38:26 -07:00
..
acl.c f2fs: Replace spaces with tab 2019-05-08 21:23:11 -07:00
acl.h f2fs: add SPDX license identifiers 2018-09-12 13:07:10 -07:00
checkpoint.c f2fs: add a rw_sem to cover quota flag changes 2019-07-02 15:40:41 -07:00
data.c f2fs: enhance f2fs_is_checkpoint_ready()'s readability 2019-09-06 16:18:26 -07:00
debug.c fs: f2fs: Remove unnecessary checks of SM_I(sbi) in update_general_status() 2019-08-23 07:57:12 -07:00
dir.c f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() 2019-09-16 08:38:26 -07:00
extent_cache.c f2fs: introduce f2fs_<level> macros to wrap f2fs_printk() 2019-07-02 15:40:40 -07:00
f2fs.h f2fs: fix wrong error injection path in inc_valid_block_count() 2019-09-06 16:18:26 -07:00
file.c f2fs: avoid infinite GC loop due to stale atomic files 2019-09-16 08:38:20 -07:00
gc.c f2fs: Fix indefinite loop in f2fs_gc() 2019-09-09 13:06:11 +01:00
gc.h f2fs: add SPDX license identifiers 2018-09-12 13:07:10 -07:00
hash.c f2fs: Support case-insensitive file name lookups 2019-08-23 07:57:13 -07:00
inline.c f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() 2019-09-16 08:38:26 -07:00
inode.c f2fs: enhance f2fs_is_checkpoint_ready()'s readability 2019-09-06 16:18:26 -07:00
Kconfig f2fs: Fix build error while CONFIG_NLS=m 2019-08-23 07:57:14 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
namei.c f2fs: enhance f2fs_is_checkpoint_ready()'s readability 2019-09-06 16:18:26 -07:00
node.c f2fs: fix flushing node pages when checkpoint is disabled 2019-09-06 16:18:26 -07:00
node.h f2fs: check PageWriteback flag for ordered case 2018-12-26 15:16:56 -08:00
recovery.c f2fs: use generic EFSBADCRC/EFSCORRUPTED 2019-07-02 15:40:41 -07:00
segment.c f2fs: avoid infinite GC loop due to stale atomic files 2019-09-16 08:38:20 -07:00
segment.h f2fs: enhance f2fs_is_checkpoint_ready()'s readability 2019-09-06 16:18:26 -07:00
shrinker.c f2fs: fix sbi->extent_list corruption issue 2018-12-26 15:16:54 -08:00
super.c f2fs: fix wrong available node count calculation 2019-08-23 07:57:14 -07:00
sysfs.c f2fs: include charset encoding information in the superblock 2019-08-23 07:57:13 -07:00
trace.c f2fs: do not use mutex lock in atomic context 2019-03-05 19:58:06 -08:00
trace.h f2fs: add SPDX license identifiers 2018-09-12 13:07:10 -07:00
xattr.c f2fs: enhance f2fs_is_checkpoint_ready()'s readability 2019-09-06 16:18:26 -07:00
xattr.h f2fs: fix to avoid accessing xattr across the boundary 2019-05-09 09:43:29 -07:00