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Jaegeuk Kim a996fec74c f2fs: fix deadlock in i_xattr_sem and inode page lock 
commit 5eda1ad1aaffdfebdecf7a164e586060a210f74f upstream.

Thread #1:

[122554.641906][   T92]  f2fs_getxattr+0xd4/0x5fc
    -> waiting for f2fs_down_read(&F2FS_I(inode)->i_xattr_sem);

[122554.641927][   T92]  __f2fs_get_acl+0x50/0x284
[122554.641948][   T92]  f2fs_init_acl+0x84/0x54c
[122554.641969][   T92]  f2fs_init_inode_metadata+0x460/0x5f0
[122554.641990][   T92]  f2fs_add_inline_entry+0x11c/0x350
    -> Locked dir->inode_page by f2fs_get_node_page()

[122554.642009][   T92]  f2fs_do_add_link+0x100/0x1e4
[122554.642025][   T92]  f2fs_create+0xf4/0x22c
[122554.642047][   T92]  vfs_create+0x130/0x1f4

Thread #2:

[123996.386358][   T92]  __get_node_page+0x8c/0x504
    -> waiting for dir->inode_page lock

[123996.386383][   T92]  read_all_xattrs+0x11c/0x1f4
[123996.386405][   T92]  __f2fs_setxattr+0xcc/0x528
[123996.386424][   T92]  f2fs_setxattr+0x158/0x1f4
    -> f2fs_down_write(&F2FS_I(inode)->i_xattr_sem);

[123996.386443][   T92]  __f2fs_set_acl+0x328/0x430
[123996.386618][   T92]  f2fs_set_acl+0x38/0x50
[123996.386642][   T92]  posix_acl_chmod+0xc8/0x1c8
[123996.386669][   T92]  f2fs_setattr+0x5e0/0x6bc
[123996.386689][   T92]  notify_change+0x4d8/0x580
[123996.386717][   T92]  chmod_common+0xd8/0x184
[123996.386748][   T92]  do_fchmodat+0x60/0x124
[123996.386766][   T92]  __arm64_sys_fchmodat+0x28/0x3c

Cc: <stable@vger.kernel.org>
Fixes: 27161f13e3c3 "f2fs: avoid race in between read xattr & write xattr"
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-23 13:49:29 +02:00
..
acl.c
f2fs: port to vfs{g,u}id_t and associated helpers
2022-10-04 13:31:43 -07:00
acl.h
vfs: add rcu argument to ->get_acl() callback
2021-08-18 22:08:24 +02:00
checkpoint.c
f2fs: fix to drop all dirty pages during umount() if cp_error is set
2023-05-24 17:32:38 +01:00
compress.c
f2fs: fix the wrong condition to determine atomic context
2023-07-23 13:49:29 +02:00
data.c
f2fs: fix potential deadlock due to unpaired node_write lock use
2023-07-19 16:21:55 +02:00
debug.c
f2fs: refactor extent_cache to support for read and more
2023-05-17 11:53:52 +02:00
dir.c
f2fs: fix deadlock in i_xattr_sem and inode page lock
2023-07-23 13:49:29 +02:00
extent_cache.c
f2fs: inode: fix to do sanity check on extent cache correctly
2023-05-17 11:53:59 +02:00
f2fs.h
f2fs: fix to avoid NULL pointer dereference f2fs_write_end_io()
2023-07-19 16:21:55 +02:00
file.c
f2fs: fix to avoid NULL pointer dereference f2fs_write_end_io()
2023-07-19 16:21:55 +02:00
gc.c
f2fs: check return value of freeze_super()
2023-07-19 16:22:00 +02:00
gc.h
f2fs: Fix system crash due to lack of free space in LFS
2023-05-24 17:32:38 +01:00
hash.c
f2fs: don't use casefolded comparison for "." and ".."
2022-05-17 11:19:23 -07:00
inline.c
f2fs: fix information leak in f2fs_move_inline_dirents()
2023-03-10 09:34:08 +01:00
inode.c
f2fs: inode: fix to do sanity check on extent cache correctly
2023-05-17 11:53:59 +02:00
iostat.c
f2fs: fix to avoid potential memory corruption in __update_iostat_latency()
2023-03-11 13:55:21 +01:00
iostat.h
f2fs: iostat: support accounting compressed IO
2022-08-29 21:15:51 -07:00
Kconfig
f2fs: introduce F2FS_UNFAIR_RWSEM to support unfair rwsem
2022-03-04 09:15:53 -08:00
Makefile
f2fs: separate out iostat feature
2021-08-23 10:25:51 -07:00
namei.c
Revert "f2fs: fix potential corruption when moving a directory"
2023-07-19 16:22:12 +02:00
node.c
f2fs: fix error path handling in truncate_dnode()
2023-07-19 16:22:03 +02:00
node.h
f2fs: specify extent cache for read explicitly
2023-05-17 11:53:52 +02:00
recovery.c
f2fs: support recording errors into superblock
2022-10-04 13:31:45 -07:00
segment.c
f2fs: factor out victim_entry usage from general rb_tree use
2023-05-17 11:53:53 +02:00
segment.h
f2fs: Fix system crash due to lack of free space in LFS
2023-05-24 17:32:38 +01:00
shrinker.c
f2fs: refactor extent_cache to support for read and more
2023-05-17 11:53:52 +02:00
super.c
f2fs: fix to check readonly condition correctly
2023-05-24 17:32:38 +01:00
sysfs.c
f2fs: fix iostat lock protection
2023-05-11 23:03:20 +09:00
verity.c
fs: f2fs: initialize fsdata in pagecache_write()
2023-03-11 13:55:18 +01:00
xattr.c
f2fs: fix deadlock in i_xattr_sem and inode page lock
2023-07-23 13:49:29 +02:00
xattr.h
f2fs: code cleanup by removing ifdef macro surrounding
2020-05-26 18:56:10 -07:00