======================================================
WARNING: possible circular locking dependency detected
6.1.111-syzkaller #0 Not tainted
------------------------------------------------------
syz.1.190/5626 is trying to acquire lock:
ffff0000e15cc2c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
ffff0000e15cc2c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_reserve_local_alloc_bits+0xfc/0x25dc fs/ocfs2/localalloc.c:635
but task is already holding lock:
ffff0000f14a8660 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #7 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}:
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314
ocfs2_acquire_dquot+0x27c/0xb1c fs/ocfs2/quota_global.c:811
dqget+0x660/0xcec fs/quota/dquot.c:986
ocfs2_setattr+0xc48/0x1b3c fs/ocfs2/file.c:1230
notify_change+0xb58/0xe1c fs/attr.c:499
chown_common+0x4e8/0x7d8 fs/open.c:736
vfs_fchown fs/open.c:804 [inline]
ksys_fchown+0xe0/0x158 fs/open.c:815
__do_sys_fchown fs/open.c:823 [inline]
__se_sys_fchown fs/open.c:821 [inline]
__arm64_sys_fchown+0x7c/0x94 fs/open.c:821
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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
-> #6 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}:
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_lock_global_qf+0x1b8/0x260 fs/ocfs2/quota_global.c:313
ocfs2_acquire_dquot+0x27c/0xb1c fs/ocfs2/quota_global.c:811
dqget+0x660/0xcec fs/quota/dquot.c:986
ocfs2_setattr+0xc48/0x1b3c fs/ocfs2/file.c:1230
notify_change+0xb58/0xe1c fs/attr.c:499
chown_common+0x4e8/0x7d8 fs/open.c:736
vfs_fchown fs/open.c:804 [inline]
ksys_fchown+0xe0/0x158 fs/open.c:815
__do_sys_fchown fs/open.c:823 [inline]
__se_sys_fchown fs/open.c:821 [inline]
__arm64_sys_fchown+0x7c/0x94 fs/open.c:821
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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
-> #5 (&dquot->dq_lock){+.+.}-{3:3}:
__mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
dquot_commit+0x54/0x240 fs/quota/dquot.c:507
ext4_write_dquot+0x1b4/0x314 fs/ext4/super.c:6776
ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6836
mark_dquot_dirty fs/quota/dquot.c:372 [inline]
mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412
__dquot_alloc_space+0xb28/0xf50 fs/quota/dquot.c:1750
dquot_alloc_space_nodirty include/linux/quotaops.h:300 [inline]
dquot_alloc_space include/linux/quotaops.h:313 [inline]
dquot_alloc_block include/linux/quotaops.h:337 [inline]
ext4_mb_new_blocks+0xe8c/0x4680 fs/ext4/mballoc.c:5730
ext4_ext_map_blocks+0x15a8/0x6638 fs/ext4/extents.c:4318
ext4_map_blocks+0x810/0x1810 fs/ext4/inode.c:678
ext4_getblk+0x198/0x6ec fs/ext4/inode.c:889
ext4_bread+0x3c/0x1b0 fs/ext4/inode.c:945
ext4_append+0x260/0x4cc fs/ext4/namei.c:83
ext4_init_new_dir+0x294/0x8e4 fs/ext4/namei.c:3028
ext4_mkdir+0x3d4/0xa64 fs/ext4/namei.c:3074
vfs_mkdir+0x334/0x4e4 fs/namei.c:4108
do_mkdirat+0x220/0x510 fs/namei.c:4133
__do_sys_mkdirat fs/namei.c:4148 [inline]
__se_sys_mkdirat fs/namei.c:4146 [inline]
__arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4146
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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
-> #4 (&ei->i_data_sem){++++}-{3:3}:
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
ext4_truncate+0x7e0/0x1178 fs/ext4/inode.c:4283
ext4_setattr+0xda0/0x14e8 fs/ext4/inode.c:5598
notify_change+0xb58/0xe1c fs/attr.c:499
do_truncate+0x1c0/0x28c fs/open.c:65
do_sys_ftruncate+0x288/0x31c 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+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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
-> #3 (jbd2_handle){++++}-{0:0}:
start_this_handle+0x1140/0x13ac fs/jbd2/transaction.c:463
jbd2__journal_start+0x298/0x544 fs/jbd2/transaction.c:520
jbd2_journal_start+0x3c/0x4c fs/jbd2/transaction.c:559
ocfs2_start_trans+0x3e8/0x73c fs/ocfs2/journal.c:354
ocfs2_mknod+0xe64/0x2560 fs/ocfs2/namei.c:359
ocfs2_mkdir+0x1a8/0x560 fs/ocfs2/namei.c:655
vfs_mkdir+0x334/0x4e4 fs/namei.c:4108
do_mkdirat+0x220/0x510 fs/namei.c:4133
__do_sys_mkdirat fs/namei.c:4148 [inline]
__se_sys_mkdirat fs/namei.c:4146 [inline]
__arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4146
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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 (&journal->j_trans_barrier){.+.+}-{3:3}:
down_read+0x64/0x308 kernel/locking/rwsem.c:1520
ocfs2_start_trans+0x3dc/0x73c fs/ocfs2/journal.c:352
ocfs2_mknod+0xe64/0x2560 fs/ocfs2/namei.c:359
ocfs2_mkdir+0x1a8/0x560 fs/ocfs2/namei.c:655
vfs_mkdir+0x334/0x4e4 fs/namei.c:4108
do_mkdirat+0x220/0x510 fs/namei.c:4133
__do_sys_mkdirat fs/namei.c:4148 [inline]
__se_sys_mkdirat fs/namei.c:4146 [inline]
__arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4146
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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 (sb_internal#3){.+.+}-{0:0}:
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
__sb_start_write include/linux/fs.h:1891 [inline]
sb_start_intwrite include/linux/fs.h:2013 [inline]
ocfs2_start_trans+0x260/0x73c fs/ocfs2/journal.c:350
ocfs2_mknod+0xe64/0x2560 fs/ocfs2/namei.c:359
ocfs2_mkdir+0x1a8/0x560 fs/ocfs2/namei.c:655
vfs_mkdir+0x334/0x4e4 fs/namei.c:4108
do_mkdirat+0x220/0x510 fs/namei.c:4133
__do_sys_mkdirat fs/namei.c:4148 [inline]
__se_sys_mkdirat fs/namei.c:4146 [inline]
__arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4146
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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 (&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+0x3338/0x7680 kernel/locking/lockdep.c:5049
lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_reserve_local_alloc_bits+0xfc/0x25dc fs/ocfs2/localalloc.c:635
ocfs2_reserve_clusters_with_limit+0x194/0xabc fs/ocfs2/suballoc.c:1162
ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1223 [inline]
ocfs2_lock_allocators+0x294/0x584 fs/ocfs2/suballoc.c:2669
ocfs2_extend_allocation+0x474/0x1a04 fs/ocfs2/file.c:585
ocfs2_extend_no_holes+0x1b0/0x45c fs/ocfs2/file.c:1027
ocfs2_acquire_dquot+0x620/0xb1c fs/ocfs2/quota_global.c:836
dqget+0x660/0xcec fs/quota/dquot.c:986
ocfs2_setattr+0xc48/0x1b3c fs/ocfs2/file.c:1230
notify_change+0xb58/0xe1c fs/attr.c:499
chown_common+0x4e8/0x7d8 fs/open.c:736
vfs_fchown fs/open.c:804 [inline]
ksys_fchown+0xe0/0x158 fs/open.c:815
__do_sys_fchown fs/open.c:823 [inline]
__se_sys_fchown fs/open.c:821 [inline]
__arm64_sys_fchown+0x7c/0x94 fs/open.c:821
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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:
&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4 --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7 --> &ocfs2_quota_ip_alloc_sem_key
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_quota_ip_alloc_sem_key);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7);
lock(&ocfs2_quota_ip_alloc_sem_key);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
*** DEADLOCK ***
5 locks held by syz.1.190/5626:
#0: ffff0000f190a460 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write_file+0x64/0x1e8 fs/namespace.c:437
#1: ffff0000f14ab488 (&type->i_mutex_dir_key#20){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff0000f14ab488 (&type->i_mutex_dir_key#20){+.+.}-{3:3}, at: chown_common+0x358/0x7d8 fs/open.c:726
#2: ffff0000e17780a8 (&dquot->dq_lock){+.+.}-{3:3}, at: ocfs2_acquire_dquot+0x270/0xb1c fs/ocfs2/quota_global.c:806
#3: ffff0000f14a89c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#3: ffff0000f14a89c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: ocfs2_lock_global_qf+0x1b8/0x260 fs/ocfs2/quota_global.c:313
#4: ffff0000f14a8660 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314
stack backtrace:
CPU: 1 PID: 5626 Comm: syz.1.190 Not tainted 6.1.111-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call trace:
dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
dump_stack+0x1c/0x58 lib/dump_stack.c:113
print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2048
check_noncircular+0x2cc/0x378 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+0x3338/0x7680 kernel/locking/lockdep.c:5049
lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
down_write+0x5c/0x88 kernel/locking/rwsem.c:1573
inode_lock include/linux/fs.h:758 [inline]
ocfs2_reserve_local_alloc_bits+0xfc/0x25dc fs/ocfs2/localalloc.c:635
ocfs2_reserve_clusters_with_limit+0x194/0xabc fs/ocfs2/suballoc.c:1162
ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1223 [inline]
ocfs2_lock_allocators+0x294/0x584 fs/ocfs2/suballoc.c:2669
ocfs2_extend_allocation+0x474/0x1a04 fs/ocfs2/file.c:585
ocfs2_extend_no_holes+0x1b0/0x45c fs/ocfs2/file.c:1027
ocfs2_acquire_dquot+0x620/0xb1c fs/ocfs2/quota_global.c:836
dqget+0x660/0xcec fs/quota/dquot.c:986
ocfs2_setattr+0xc48/0x1b3c fs/ocfs2/file.c:1230
notify_change+0xb58/0xe1c fs/attr.c:499
chown_common+0x4e8/0x7d8 fs/open.c:736
vfs_fchown fs/open.c:804 [inline]
ksys_fchown+0xe0/0x158 fs/open.c:815
__do_sys_fchown fs/open.c:823 [inline]
__se_sys_fchown fs/open.c:821 [inline]
__arm64_sys_fchown+0x7c/0x94 fs/open.c:821
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204
el0_svc+0x58/0x168 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