======================================================
WARNING: possible circular locking dependency detected
6.1.131-syzkaller #0 Not tainted
------------------------------------------------------
syz.6.1203/10613 is trying to acquire lock:
ffff888050815f48 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
ffff888050815f48 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: ocfs2_del_inode_from_orphan+0x155/0x7f0 fs/ocfs2/namei.c:2713
but task is already holding lock:
ffff888072e83f60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_dio_end_io_write fs/ocfs2/aops.c:2325 [inline]
ffff888072e83f60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_dio_end_io+0x446/0x1250 fs/ocfs2/aops.c:2431
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
down_write+0x36/0x60 kernel/locking/rwsem.c:1573
ocfs2_create_local_dquot+0x1dc/0x1ba0 fs/ocfs2/quota_local.c:1229
ocfs2_acquire_dquot+0x7df/0xb60 fs/ocfs2/quota_global.c:871
dqget+0x762/0xe90 fs/quota/dquot.c:988
dquot_set_dqblk+0x27/0xf20 fs/quota/dquot.c:2833
quota_setquota+0x6d3/0x840 fs/quota/quota.c:310
__do_sys_quotactl fs/quota/quota.c:960 [inline]
__se_sys_quotactl+0x2b1/0x770 fs/quota/quota.c:916
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #2 (&dquot->dq_lock){+.+.}-{3:3}:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x132/0xd80 kernel/locking/mutex.c:747
wait_on_dquot fs/quota/dquot.c:356 [inline]
dqget+0x6dc/0xe90 fs/quota/dquot.c:983
__dquot_initialize+0x2d9/0xea0 fs/quota/dquot.c:1517
ocfs2_get_init_inode+0x154/0x1c0 fs/ocfs2/namei.c:202
ocfs2_mknod+0xe32/0x2e20 fs/ocfs2/namei.c:310
ocfs2_create+0x1c0/0x4e0 fs/ocfs2/namei.c:674
lookup_open fs/namei.c:3482 [inline]
open_last_lookups fs/namei.c:3550 [inline]
path_openat+0x12f1/0x2e60 fs/namei.c:3780
do_filp_open+0x230/0x480 fs/namei.c:3810
do_sys_openat2+0x13b/0x4f0 fs/open.c:1318
do_sys_open fs/open.c:1334 [inline]
__do_sys_open fs/open.c:1342 [inline]
__se_sys_open fs/open.c:1338 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}:
lock_acquire+0x1f8/0x5a0 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+0x17ce/0x4c30 fs/ocfs2/inode.c:1216
evict+0x529/0x930 fs/inode.c:705
vfs_unlink+0x41e/0x5f0 fs/namei.c:4337
unix_bind_bsd net/unix/af_unix.c:1235 [inline]
unix_bind+0xa97/0xf60 net/unix/af_unix.c:1302
__sys_bind+0x233/0x2e0 net/socket.c:1811
__do_sys_bind net/socket.c:1822 [inline]
__se_sys_bind net/socket.c:1820 [inline]
__x64_sys_bind+0x76/0x80 net/socket.c:1820
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3090 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
down_write+0x36/0x60 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_del_inode_from_orphan+0x155/0x7f0 fs/ocfs2/namei.c:2713
ocfs2_dio_end_io_write fs/ocfs2/aops.c:2333 [inline]
ocfs2_dio_end_io+0x556/0x1250 fs/ocfs2/aops.c:2431
dio_complete+0x24a/0x7b0 fs/direct-io.c:271
__blockdev_direct_IO+0x3ffb/0x4810 fs/direct-io.c:1326
ocfs2_direct_IO+0x250/0x2c0 fs/ocfs2/aops.c:2468
generic_file_direct_write+0x204/0x460 mm/filemap.c:3769
__generic_file_write_iter+0x1c4/0x400 mm/filemap.c:3929
ocfs2_file_write_iter+0x19d7/0x2280 fs/ocfs2/file.c:2469
do_iter_write+0x6e6/0xc40 fs/read_write.c:861
iter_file_splice_write+0x830/0xfc0 fs/splice.c:685
do_splice_from fs/splice.c:763 [inline]
direct_splice_actor+0xe3/0x1c0 fs/splice.c:950
splice_direct_to_actor+0x4c7/0xc30 fs/splice.c:896
do_splice_direct+0x2a5/0x3e0 fs/splice.c:1002
do_sendfile+0x619/0xff0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
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] --> &dquot->dq_lock --> &ocfs2_quota_ip_alloc_sem_key
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_quota_ip_alloc_sem_key);
lock(&dquot->dq_lock);
lock(&ocfs2_quota_ip_alloc_sem_key);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
*** DEADLOCK ***
3 locks held by syz.6.1203/10613:
#0: ffff88801964e460 (sb_writers#22){.+.+}-{0:0}, at: do_sendfile+0x5f4/0xff0 fs/read_write.c:1254
#1: ffff888072e842c8 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888072e842c8 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: ocfs2_file_write_iter+0x454/0x2280 fs/ocfs2/file.c:2399
#2: ffff888072e83f60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_dio_end_io_write fs/ocfs2/aops.c:2325 [inline]
#2: ffff888072e83f60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_dio_end_io+0x446/0x1250 fs/ocfs2/aops.c:2431
stack backtrace:
CPU: 1 PID: 10613 Comm: syz.6.1203 Not tainted 6.1.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
check_noncircular+0x2fa/0x3b0 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+0x1661/0x5950 kernel/locking/lockdep.c:3825
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
down_write+0x36/0x60 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_del_inode_from_orphan+0x155/0x7f0 fs/ocfs2/namei.c:2713
ocfs2_dio_end_io_write fs/ocfs2/aops.c:2333 [inline]
ocfs2_dio_end_io+0x556/0x1250 fs/ocfs2/aops.c:2431
dio_complete+0x24a/0x7b0 fs/direct-io.c:271
__blockdev_direct_IO+0x3ffb/0x4810 fs/direct-io.c:1326
ocfs2_direct_IO+0x250/0x2c0 fs/ocfs2/aops.c:2468
generic_file_direct_write+0x204/0x460 mm/filemap.c:3769
__generic_file_write_iter+0x1c4/0x400 mm/filemap.c:3929
ocfs2_file_write_iter+0x19d7/0x2280 fs/ocfs2/file.c:2469
do_iter_write+0x6e6/0xc40 fs/read_write.c:861
iter_file_splice_write+0x830/0xfc0 fs/splice.c:685
do_splice_from fs/splice.c:763 [inline]
direct_splice_actor+0xe3/0x1c0 fs/splice.c:950
splice_direct_to_actor+0x4c7/0xc30 fs/splice.c:896
do_splice_direct+0x2a5/0x3e0 fs/splice.c:1002
do_sendfile+0x619/0xff0 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f681718d169
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6818086038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f68173a5fa0 RCX: 00007f681718d169
RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000009
RBP: 00007f681720e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f68173a5fa0 R15: 00007fff59d3d0b8
</TASK>
syz.6.1203 (10613) used greatest stack depth: 17440 bytes left