ocfs2: Mounting device (7,4) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.4.285/5517 is trying to acquire lock:
ffff0000f62e1538 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_calc_xattr_init+0x1c4/0xba4 fs/ocfs2/xattr.c:631
but task is already holding lock:
ffff0000f6166d88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
ffff0000f6166d88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x10c/0x3c80 fs/ocfs2/suballoc.c:782
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}:
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_remove_inode fs/ocfs2/inode.c:655 [inline]
ocfs2_wipe_inode fs/ocfs2/inode.c:818 [inline]
ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline]
ocfs2_evict_inode+0x12b4/0x3f2c fs/ocfs2/inode.c:1219
evict+0x3e0/0x828 fs/inode.c:705
iput_final fs/inode.c:1834 [inline]
iput+0x754/0x7e4 fs/inode.c:1860
d_delete_notify include/linux/fsnotify.h:267 [inline]
vfs_rmdir+0x32c/0x438 fs/namei.c:4212
do_rmdir+0x244/0x524 fs/namei.c:4260
__do_sys_unlinkat fs/namei.c:4440 [inline]
__se_sys_unlinkat fs/namei.c:4434 [inline]
__arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4434
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
-> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}:
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_del_inode_from_orphan+0xfc/0x640 fs/ocfs2/namei.c:2713
ocfs2_dio_end_io_write fs/ocfs2/aops.c:2333 [inline]
ocfs2_dio_end_io+0x408/0xf48 fs/ocfs2/aops.c:2431
dio_complete+0x230/0x654 fs/direct-io.c:271
__blockdev_direct_IO+0x26fc/0x3184 fs/direct-io.c:1320
ocfs2_direct_IO+0x208/0x280 fs/ocfs2/aops.c:2468
generic_file_direct_write+0x104/0x2b8 mm/filemap.c:3787
__generic_file_write_iter+0x144/0x250 mm/filemap.c:3945
ocfs2_file_write_iter+0x138c/0x1c64 fs/ocfs2/file.c:2469
do_iter_readv_writev fs/read_write.c:-1 [inline]
do_iter_write+0x53c/0x940 fs/read_write.c:861
vfs_iter_write+0x88/0xac fs/read_write.c:902
iter_file_splice_write+0x520/0xa7c fs/splice.c:685
do_splice_from fs/splice.c:763 [inline]
direct_splice_actor+0xe4/0x134 fs/splice.c:950
splice_direct_to_actor+0x3a0/0x954 fs/splice.c:896
do_splice_direct+0x168/0x25c fs/splice.c:1002
do_sendfile+0x478/0xcc8 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64 fs/read_write.c:1309 [inline]
__arm64_sys_sendfile64+0x134/0x36c fs/read_write.c:1309
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
-> #1 (&oi->ip_alloc_sem){++++}-{3:3}:
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
ocfs2_try_remove_refcount_tree+0xb4/0x2e4 fs/ocfs2/refcounttree.c:932
ocfs2_truncate_file+0xd24/0x14f8 fs/ocfs2/file.c:517
ocfs2_setattr+0x1288/0x1930 fs/ocfs2/file.c:1212
notify_change+0xb0c/0xdcc fs/attr.c:499
do_truncate+0x188/0x20c fs/open.c:65
do_sys_ftruncate+0x284/0x31c fs/open.c:193
__do_sys_ftruncate fs/open.c:204 [inline]
__se_sys_ftruncate fs/open.c:202 [inline]
__arm64_sys_ftruncate+0x60/0x74 fs/open.c:202
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
-> #0 (&oi->ip_xattr_sem){++++}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3090 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain kernel/locking/lockdep.c:3825 [inline]
__lock_acquire+0x2880/0x6800 kernel/locking/lockdep.c:5049
lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
down_read+0x64/0x300 kernel/locking/rwsem.c:1520
ocfs2_calc_xattr_init+0x1c4/0xba4 fs/ocfs2/xattr.c:631
ocfs2_mknod+0xb80/0x2110 fs/ocfs2/namei.c:330
ocfs2_create+0x19c/0x4f8 fs/ocfs2/namei.c:674
lookup_open fs/namei.c:3490 [inline]
open_last_lookups fs/namei.c:3558 [inline]
path_openat+0xe18/0x26bc fs/namei.c:3788
do_filp_open+0x194/0x384 fs/namei.c:3818
do_sys_openat2+0x134/0x3f4 fs/open.c:1320
do_sys_open fs/open.c:1336 [inline]
__do_sys_openat fs/open.c:1352 [inline]
__se_sys_openat fs/open.c:1347 [inline]
__arm64_sys_openat+0x118/0x14c fs/open.c:1347
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
other info that might help us debug this:
Chain exists of:
&oi->ip_xattr_sem --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4 --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
lock(&oi->ip_xattr_sem);
*** DEADLOCK ***
3 locks held by syz.4.285/5517:
#0: ffff0000d351a460 (sb_writers#27){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:402
#1: ffff0000f62e1808 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff0000f62e1808 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: open_last_lookups fs/namei.c:3555 [inline]
#1: ffff0000f62e1808 (&type->i_mutex_dir_key#19){++++}-{3:3}, at: path_openat+0x5f4/0x26bc fs/namei.c:3788
#2: ffff0000f6166d88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#2: ffff0000f6166d88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x10c/0x3c80 fs/ocfs2/suballoc.c:782
stack backtrace:
CPU: 1 PID: 5517 Comm: syz.4.285 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
dump_backtrace+0x1c0/0x1ec arch/arm64/kernel/stacktrace.c:158
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
__dump_stack+0x30/0x40 lib/dump_stack.c:88
dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
dump_stack+0x1c/0x5c lib/dump_stack.c:113
print_circular_bug+0x148/0x1b0 kernel/locking/lockdep.c:2048
check_noncircular+0x264/0x2f8 kernel/locking/lockdep.c:2170
check_prev_add kernel/locking/lockdep.c:3090 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain kernel/locking/lockdep.c:3825 [inline]
__lock_acquire+0x2880/0x6800 kernel/locking/lockdep.c:5049
lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
down_read+0x64/0x300 kernel/locking/rwsem.c:1520
ocfs2_calc_xattr_init+0x1c4/0xba4 fs/ocfs2/xattr.c:631
ocfs2_mknod+0xb80/0x2110 fs/ocfs2/namei.c:330
ocfs2_create+0x19c/0x4f8 fs/ocfs2/namei.c:674
lookup_open fs/namei.c:3490 [inline]
open_last_lookups fs/namei.c:3558 [inline]
path_openat+0xe18/0x26bc fs/namei.c:3788
do_filp_open+0x194/0x384 fs/namei.c:3818
do_sys_openat2+0x134/0x3f4 fs/open.c:1320
do_sys_open fs/open.c:1336 [inline]
__do_sys_openat fs/open.c:1352 [inline]
__se_sys_openat fs/open.c:1347 [inline]
__arm64_sys_openat+0x118/0x14c fs/open.c:1347
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585