ocfs2: Mounting device (7,7) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.7.1159/12238 is trying to acquire lock:
ffff888070c0ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
ffff888070c0ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_remove_inode fs/ocfs2/inode.c:655 [inline]
ffff888070c0ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_wipe_inode fs/ocfs2/inode.c:818 [inline]
ffff888070c0ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline]
ffff888070c0ed88 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_evict_inode+0x163f/0x4630 fs/ocfs2/inode.c:1219
but task is already holding lock:
ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_wipe_inode fs/ocfs2/inode.c:776 [inline]
ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline]
ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_evict_inode+0xe9c/0x4630 fs/ocfs2/inode.c:1219
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]#2){+.+.}-{3:3}:
down_write+0x36/0x60 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_del_inode_from_orphan+0x12b/0x7a0 fs/ocfs2/namei.c:2713
ocfs2_dio_end_io_write fs/ocfs2/aops.c:2333 [inline]
ocfs2_dio_end_io+0x540/0x1200 fs/ocfs2/aops.c:2431
dio_complete+0x251/0x710 fs/direct-io.c:271
__blockdev_direct_IO+0x2f25/0x3570 fs/direct-io.c:1320
ocfs2_direct_IO+0x233/0x2a0 fs/ocfs2/aops.c:2468
generic_file_direct_write+0x10f/0x330 mm/filemap.c:3787
__generic_file_write_iter+0x15f/0x2a0 mm/filemap.c:3945
ocfs2_file_write_iter+0x1660/0x1f00 fs/ocfs2/file.c:2469
do_iter_readv_writev fs/read_write.c:-1 [inline]
do_iter_write+0x642/0xb10 fs/read_write.c:861
iter_file_splice_write+0x699/0xcc0 fs/splice.c:685
do_splice_from fs/splice.c:763 [inline]
direct_splice_actor+0xe1/0x130 fs/splice.c:950
splice_direct_to_actor+0x48b/0xb90 fs/splice.c:896
do_splice_direct+0x1ce/0x2f0 fs/splice.c:1002
do_sendfile+0x5f3/0xea0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64+0x141/0x1a0 fs/read_write.c:1309
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #2 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}:
down_write+0x36/0x60 kernel/locking/rwsem.c:1573
ocfs2_create_local_dquot+0x1a5/0x18e0 fs/ocfs2/quota_local.c:1224
ocfs2_acquire_dquot+0x7c6/0xb20 fs/ocfs2/quota_global.c:871
dqget+0x778/0xeb0 fs/quota/dquot.c:988
__dquot_initialize+0x3c3/0xcd0 fs/quota/dquot.c:1517
ocfs2_get_init_inode+0x144/0x1b0 fs/ocfs2/namei.c:202
ocfs2_mknod+0x8c8/0x25b0 fs/ocfs2/namei.c:310
ocfs2_mkdir+0x1b6/0x4b0 fs/ocfs2/namei.c:657
vfs_mkdir+0x387/0x570 fs/namei.c:4114
do_mkdirat+0x1d8/0x440 fs/namei.c:4139
__do_sys_mkdirat fs/namei.c:4154 [inline]
__se_sys_mkdirat fs/namei.c:4152 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4152
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #1 (&dquot->dq_lock){+.+.}-{3:3}:
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x12d/0xaf0 kernel/locking/mutex.c:747
wait_on_dquot fs/quota/dquot.c:356 [inline]
dqget+0x6f8/0xeb0 fs/quota/dquot.c:983
__dquot_initialize+0x3c3/0xcd0 fs/quota/dquot.c:1517
ocfs2_get_init_inode+0x144/0x1b0 fs/ocfs2/namei.c:202
ocfs2_mknod+0x8c8/0x25b0 fs/ocfs2/namei.c:310
ocfs2_mkdir+0x1b6/0x4b0 fs/ocfs2/namei.c:657
vfs_mkdir+0x387/0x570 fs/namei.c:4114
do_mkdirat+0x1d8/0x440 fs/namei.c:4139
__do_sys_mkdirat fs/namei.c:4154 [inline]
__se_sys_mkdirat fs/namei.c:4152 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4152
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{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+0x2d07/0x7d10 kernel/locking/lockdep.c:5049
lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
down_write+0x36/0x60 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+0x163f/0x4630 fs/ocfs2/inode.c:1219
evict+0x4c9/0x8d0 fs/inode.c:705
d_delete_notify include/linux/fsnotify.h:267 [inline]
vfs_rmdir+0x397/0x4d0 fs/namei.c:4212
do_rmdir+0x29a/0x5c0 fs/namei.c:4260
__do_sys_unlinkat fs/namei.c:4440 [inline]
__se_sys_unlinkat fs/namei.c:4434 [inline]
__x64_sys_unlinkat+0xc0/0xe0 fs/namei.c:4434
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
other info that might help us debug this:
Chain exists of:
&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4 --> &ocfs2_quota_ip_alloc_sem_key --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2);
lock(&ocfs2_quota_ip_alloc_sem_key);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
*** DEADLOCK ***
4 locks held by syz.7.1159/12238:
#0: ffff888077784460 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x3d/0x90 fs/namespace.c:402
#1: ffff8880551e9808 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff8880551e9808 (&type->i_mutex_dir_key#14/1){+.+.}-{3:3}, at: do_rmdir+0x1b7/0x5c0 fs/namei.c:4247
#2: ffff888048e2cab0 (&osb->nfs_sync_rwlock){.+.+}-{3:3}, at: ocfs2_nfs_sync_lock+0x103/0x270 fs/ocfs2/dlmglue.c:2874
#3: ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#3: ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_wipe_inode fs/ocfs2/inode.c:776 [inline]
#3: ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline]
#3: ffff888070c0b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_evict_inode+0xe9c/0x4630 fs/ocfs2/inode.c:1219
stack backtrace:
CPU: 0 PID: 12238 Comm: syz.7.1159 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
<TASK>
dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
check_noncircular+0x296/0x330 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+0x2d07/0x7d10 kernel/locking/lockdep.c:5049
lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
down_write+0x36/0x60 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+0x163f/0x4630 fs/ocfs2/inode.c:1219
evict+0x4c9/0x8d0 fs/inode.c:705
d_delete_notify include/linux/fsnotify.h:267 [inline]
vfs_rmdir+0x397/0x4d0 fs/namei.c:4212
do_rmdir+0x29a/0x5c0 fs/namei.c:4260
__do_sys_unlinkat fs/namei.c:4440 [inline]
__se_sys_unlinkat fs/namei.c:4434 [inline]
__x64_sys_unlinkat+0xc0/0xe0 fs/namei.c:4434
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1d85f9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1d86e1f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 00007f1d86215fa0 RCX: 00007f1d85f9c799
RDX: 0000000000000200 RSI: 0000200000000040 RDI: 0000000000000004
RBP: 00007f1d86032bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1d86216038 R14: 00007f1d86215fa0 R15: 00007ffc7f2f5e18
</TASK>