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Jaegeuk Kim 9de787139b f2fs: split initial and dynamic conditions for extent_cache 
commit f803982190 upstream.

Let's allocate the extent_cache tree without dynamic conditions to avoid a
missing condition causing a panic as below.

 # create a file w/ a compressed flag
 # disable the compression
 # panic while updating extent_cache

F2FS-fs (dm-64): Swapfile: last extent is not aligned to section
F2FS-fs (dm-64): Swapfile (3) is not align to section: 1) creat(), 2) ioctl(F2FS_IOC_SET_PIN_FILE), 3) fallocate(2097152 * N)
Adding 124996k swap on ./swap-file.  Priority:0 extents:2 across:17179494468k
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [inline]
BUG: KASAN: null-ptr-deref in atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [inline]
BUG: KASAN: null-ptr-deref in queued_write_lock out/common/include/asm-generic/qrwlock.h:92 [inline]
BUG: KASAN: null-ptr-deref in __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [inline]
BUG: KASAN: null-ptr-deref in _raw_write_lock+0x5a/0x110 out/common/kernel/locking/spinlock.c:295
Write of size 4 at addr 0000000000000030 by task syz-executor154/3327

CPU: 0 PID: 3327 Comm: syz-executor154 Tainted: G           O      5.10.185 #1
Hardware name: emulation qemu-x86/qemu-x86, BIOS 2023.01-21885-gb3cc1cd24d 01/01/2023
Call Trace:
 __dump_stack out/common/lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x17e/0x1c4 out/common/lib/dump_stack.c:118
 __kasan_report+0x16c/0x260 out/common/mm/kasan/report.c:415
 kasan_report+0x51/0x70 out/common/mm/kasan/report.c:428
 kasan_check_range+0x2f3/0x340 out/common/mm/kasan/generic.c:186
 __kasan_check_write+0x14/0x20 out/common/mm/kasan/shadow.c:37
 instrument_atomic_read_write out/common/include/linux/instrumented.h:101 [inline]
 atomic_try_cmpxchg_acquire out/common/include/asm-generic/atomic-instrumented.h:705 [inline]
 queued_write_lock out/common/include/asm-generic/qrwlock.h:92 [inline]
 __raw_write_lock out/common/include/linux/rwlock_api_smp.h:211 [inline]
 _raw_write_lock+0x5a/0x110 out/common/kernel/locking/spinlock.c:295
 __drop_extent_tree+0xdf/0x2f0 out/common/fs/f2fs/extent_cache.c:1155
 f2fs_drop_extent_tree+0x17/0x30 out/common/fs/f2fs/extent_cache.c:1172
 f2fs_insert_range out/common/fs/f2fs/file.c:1600 [inline]
 f2fs_fallocate+0x19fd/0x1f40 out/common/fs/f2fs/file.c:1764
 vfs_fallocate+0x514/0x9b0 out/common/fs/open.c:310
 ksys_fallocate out/common/fs/open.c:333 [inline]
 __do_sys_fallocate out/common/fs/open.c:341 [inline]
 __se_sys_fallocate out/common/fs/open.c:339 [inline]
 __x64_sys_fallocate+0xb8/0x100 out/common/fs/open.c:339
 do_syscall_64+0x35/0x50 out/common/arch/x86/entry/common.c:46

Cc: stable@vger.kernel.org
Fixes: 72840cccc0 ("f2fs: allocate the extent_cache by default")
Reported-and-tested-by: syzbot+d342e330a37b48c094b7@syzkaller.appspotmail.com
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2023-11-28 17:15:13 +00:00
..
Kconfig
…
Makefile
…
acl.c
…
acl.h
…
checkpoint.c f2fs: fix to account cp stats correctly 2023-09-13 09:53:43 +02:00
compress.c f2fs: avoid format-overflow warning 2023-11-28 17:15:13 +00:00
data.c f2fs: compress: fix to avoid use-after-free on dic 2023-11-20 11:57:12 +01:00
debug.c f2fs: fix to account cp stats correctly 2023-09-13 09:53:43 +02:00
dir.c f2fs: fix deadlock in i_xattr_sem and inode page lock 2023-06-30 16:38:09 -07:00
extent_cache.c f2fs: split initial and dynamic conditions for extent_cache 2023-11-28 17:15:13 +00:00
f2fs.h f2fs: avoid false alarm of circular locking 2023-09-19 12:30:23 +02:00
file.c f2fs: set the default compress_level on ioctl 2023-11-28 17:15:13 +00:00
gc.c f2fs: fix to account cp stats correctly 2023-09-13 09:53:43 +02:00
gc.h f2fs: Fix system crash due to lack of free space in LFS 2023-04-10 10:58:45 -07:00
hash.c
…
inline.c f2fs: avoid false alarm of circular locking 2023-09-19 12:30:23 +02:00
inode.c Revert "f2fs: fix to do sanity check on extent cache correctly" 2023-09-13 09:53:43 +02:00
iostat.c f2fs: add async reset zone command support 2023-06-12 13:04:09 -07:00
iostat.h
…
namei.c f2fs update for 6.5-rc1 2023-07-05 14:14:37 -07:00
node.c f2fs: do not return EFSCORRUPTED, but try to run online repair 2023-11-28 17:15:13 +00:00
node.h f2fs: fix compile warning in f2fs_destroy_node_manager() 2023-06-30 16:38:27 -07:00
recovery.c f2fs: fix to account cp stats correctly 2023-09-13 09:53:43 +02:00
segment.c f2fs: flush inode if atomic file is aborted 2023-09-19 12:30:23 +02:00
segment.h f2fs: add has_enough_free_secs() 2023-04-18 09:05:54 -07:00
shrinker.c
…
super.c f2fs: fix to drop meta_inode's page cache in f2fs_put_super() 2023-11-20 11:57:13 +01:00
sysfs.c f2fs: fix to account cp stats correctly 2023-09-13 09:53:43 +02:00
verity.c
…
xattr.c f2fs: do not return EFSCORRUPTED, but try to run online repair 2023-11-28 17:15:13 +00:00
xattr.h f2fs: cleanup MIN_INLINE_XATTR_SIZE 2023-06-26 06:07:10 -07:00