(syz.4.37,4477,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0x3c8d1ba1, computed 0xb76e9bd7. Applying ECC.
(syz.4.37,4477,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0x98842a5e, computed 0xe74db1cd. Applying ECC.
======================================================
WARNING: possible circular locking dependency detected
5.15.189-syzkaller #0 Not tainted
------------------------------------------------------
syz.4.37/4477 is trying to acquire lock:
ffff888023a2a650 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_extend_allocation+0x6cb/0x1760 fs/ocfs2/file.c:596
but task is already holding lock:
ffff88806ffad108 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
ffff88806ffad108 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x161/0x4350 fs/ocfs2/suballoc.c:782
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #7 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}:
down_write+0x38/0x60 kernel/locking/rwsem.c:1551
inode_lock include/linux/fs.h:787 [inline]
ocfs2_reserve_suballoc_bits+0x161/0x4350 fs/ocfs2/suballoc.c:782
ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1128 [inline]
ocfs2_reserve_clusters_with_limit+0x2f8/0xba0 fs/ocfs2/suballoc.c:1173
ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1223 [inline]
ocfs2_lock_allocators+0x2f7/0x5b0 fs/ocfs2/suballoc.c:2669
ocfs2_extend_allocation+0x397/0x1760 fs/ocfs2/file.c:588
ocfs2_extend_no_holes+0x20b/0x490 fs/ocfs2/file.c:1030
ocfs2_acquire_dquot+0x5fe/0xaf0 fs/ocfs2/quota_global.c:841
dqget+0x778/0xeb0 fs/quota/dquot.c:988
ocfs2_setattr+0xc93/0x1a10 fs/ocfs2/file.c:1236
notify_change+0xbcd/0xee0 fs/attr.c:505
chown_common+0x483/0x610 fs/open.c:680
vfs_fchown fs/open.c:748 [inline]
ksys_fchown+0xe2/0x150 fs/open.c:759
__do_sys_fchown fs/open.c:767 [inline]
__se_sys_fchown fs/open.c:765 [inline]
__x64_sys_fchown+0x76/0x80 fs/open.c:765
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #6 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}:
down_write+0x38/0x60 kernel/locking/rwsem.c:1551
ocfs2_lock_global_qf+0x1e5/0x270 fs/ocfs2/quota_global.c:314
ocfs2_acquire_dquot+0x29d/0xaf0 fs/ocfs2/quota_global.c:816
dqget+0x778/0xeb0 fs/quota/dquot.c:988
ocfs2_setattr+0xc93/0x1a10 fs/ocfs2/file.c:1236
notify_change+0xbcd/0xee0 fs/attr.c:505
chown_common+0x483/0x610 fs/open.c:680
vfs_fchown fs/open.c:748 [inline]
ksys_fchown+0xe2/0x150 fs/open.c:759
__do_sys_fchown fs/open.c:767 [inline]
__se_sys_fchown fs/open.c:765 [inline]
__x64_sys_fchown+0x76/0x80 fs/open.c:765
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #5 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}:
down_write+0x38/0x60 kernel/locking/rwsem.c:1551
inode_lock include/linux/fs.h:787 [inline]
ocfs2_lock_global_qf+0x1c7/0x270 fs/ocfs2/quota_global.c:313
ocfs2_acquire_dquot+0x29d/0xaf0 fs/ocfs2/quota_global.c:816
dqget+0x778/0xeb0 fs/quota/dquot.c:988
ocfs2_setattr+0xc93/0x1a10 fs/ocfs2/file.c:1236
notify_change+0xbcd/0xee0 fs/attr.c:505
chown_common+0x483/0x610 fs/open.c:680
vfs_fchown fs/open.c:748 [inline]
ksys_fchown+0xe2/0x150 fs/open.c:759
__do_sys_fchown fs/open.c:767 [inline]
__se_sys_fchown fs/open.c:765 [inline]
__x64_sys_fchown+0x76/0x80 fs/open.c:765
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #4 (&dquot->dq_lock){+.+.}-{3:3}:
__mutex_lock_common+0x1eb/0x2390 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
wait_on_dquot fs/quota/dquot.c:356 [inline]
dqget+0x6f8/0xeb0 fs/quota/dquot.c:983
dquot_transfer+0x1e1/0x480 fs/quota/dquot.c:2146
ext4_setattr+0x72a/0x19e0 fs/ext4/inode.c:5452
notify_change+0xbcd/0xee0 fs/attr.c:505
chown_common+0x483/0x610 fs/open.c:680
vfs_fchown fs/open.c:748 [inline]
ksys_fchown+0xe2/0x150 fs/open.c:759
__do_sys_fchown fs/open.c:767 [inline]
__se_sys_fchown fs/open.c:765 [inline]
__x64_sys_fchown+0x76/0x80 fs/open.c:765
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #3 (&ei->xattr_sem){++++}-{3:3}:
down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
ext4_setattr+0x71d/0x19e0 fs/ext4/inode.c:5451
notify_change+0xbcd/0xee0 fs/attr.c:505
chown_common+0x483/0x610 fs/open.c:680
do_fchownat+0x164/0x270 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #2 (jbd2_handle){++++}-{0:0}:
start_this_handle+0x1338/0x15a0 fs/jbd2/transaction.c:464
jbd2__journal_start+0x2b7/0x5a0 fs/jbd2/transaction.c:521
jbd2_journal_start+0x26/0x30 fs/jbd2/transaction.c:560
ocfs2_start_trans+0x374/0x6c0 fs/ocfs2/journal.c:376
ocfs2_modify_bh+0xe5/0x470 fs/ocfs2/quota_local.c:101
ocfs2_local_read_info+0x13b1/0x16e0 fs/ocfs2/quota_local.c:764
dquot_load_quota_sb+0x756/0xac0 fs/quota/dquot.c:2463
dquot_load_quota_inode+0x2d8/0x5d0 fs/quota/dquot.c:2500
ocfs2_enable_quotas+0x1c3/0x440 fs/ocfs2/super.c:927
ocfs2_fill_super+0x3a1f/0x4d80 fs/ocfs2/super.c:1140
mount_bdev+0x287/0x3c0 fs/super.c:1400
legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3014
do_mount fs/namespace.c:3357 [inline]
__do_sys_mount fs/namespace.c:3565 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #1 (&journal->j_trans_barrier){.+.+}-{3:3}:
down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
ocfs2_start_trans+0x368/0x6c0 fs/ocfs2/journal.c:374
ocfs2_modify_bh+0xe5/0x470 fs/ocfs2/quota_local.c:101
ocfs2_local_read_info+0x13b1/0x16e0 fs/ocfs2/quota_local.c:764
dquot_load_quota_sb+0x756/0xac0 fs/quota/dquot.c:2463
dquot_load_quota_inode+0x2d8/0x5d0 fs/quota/dquot.c:2500
ocfs2_enable_quotas+0x1c3/0x440 fs/ocfs2/super.c:927
ocfs2_fill_super+0x3a1f/0x4d80 fs/ocfs2/super.c:1140
mount_bdev+0x287/0x3c0 fs/super.c:1400
legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x24a/0xa40 fs/namespace.c:3014
do_mount fs/namespace.c:3357 [inline]
__do_sys_mount fs/namespace.c:3565 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #0 (sb_internal#2){.+.+}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain kernel/locking/lockdep.c:3788 [inline]
__lock_acquire+0x2c33/0x7c60 kernel/locking/lockdep.c:5012
lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
__sb_start_write include/linux/fs.h:1811 [inline]
sb_start_intwrite include/linux/fs.h:1928 [inline]
ocfs2_start_trans+0x269/0x6c0 fs/ocfs2/journal.c:372
ocfs2_extend_allocation+0x6cb/0x1760 fs/ocfs2/file.c:596
ocfs2_extend_no_holes+0x20b/0x490 fs/ocfs2/file.c:1030
ocfs2_acquire_dquot+0x5fe/0xaf0 fs/ocfs2/quota_global.c:841
dqget+0x778/0xeb0 fs/quota/dquot.c:988
ocfs2_setattr+0xc93/0x1a10 fs/ocfs2/file.c:1236
notify_change+0xbcd/0xee0 fs/attr.c:505
chown_common+0x483/0x610 fs/open.c:680
vfs_fchown fs/open.c:748 [inline]
ksys_fchown+0xe2/0x150 fs/open.c:759
__do_sys_fchown fs/open.c:767 [inline]
__se_sys_fchown fs/open.c:765 [inline]
__x64_sys_fchown+0x76/0x80 fs/open.c:765
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
other info that might help us debug this:
Chain exists of:
sb_internal#2 --> &ocfs2_quota_ip_alloc_sem_key --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3);
lock(&ocfs2_quota_ip_alloc_sem_key);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3);
lock(sb_internal#2);
*** DEADLOCK ***
6 locks held by syz.4.37/4477:
#0: ffff888023a2a460 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write_file+0x5c/0x200 fs/namespace.c:421
#1: ffff88806ffa89c8 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#1: ffff88806ffa89c8 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: chown_common+0x3c6/0x610 fs/open.c:674
#2: ffff88806fda60a8 (&dquot->dq_lock){+.+.}-{3:3}, at: ocfs2_acquire_dquot+0x290/0xaf0 fs/ocfs2/quota_global.c:811
#3: ffff88806ffadf48 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#3: ffff88806ffadf48 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}, at: ocfs2_lock_global_qf+0x1c7/0x270 fs/ocfs2/quota_global.c:313
#4: ffff88806ffadbe0 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_lock_global_qf+0x1e5/0x270 fs/ocfs2/quota_global.c:314
#5: ffff88806ffad108 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#5: ffff88806ffad108 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x161/0x4350 fs/ocfs2/suballoc.c:782
stack backtrace:
CPU: 1 PID: 4477 Comm: syz.4.37 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
<TASK>
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
check_noncircular+0x274/0x310 kernel/locking/lockdep.c:2133
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain kernel/locking/lockdep.c:3788 [inline]
__lock_acquire+0x2c33/0x7c60 kernel/locking/lockdep.c:5012
lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
__sb_start_write include/linux/fs.h:1811 [inline]
sb_start_intwrite include/linux/fs.h:1928 [inline]
ocfs2_start_trans+0x269/0x6c0 fs/ocfs2/journal.c:372
ocfs2_extend_allocation+0x6cb/0x1760 fs/ocfs2/file.c:596
ocfs2_extend_no_holes+0x20b/0x490 fs/ocfs2/file.c:1030
ocfs2_acquire_dquot+0x5fe/0xaf0 fs/ocfs2/quota_global.c:841
dqget+0x778/0xeb0 fs/quota/dquot.c:988
ocfs2_setattr+0xc93/0x1a10 fs/ocfs2/file.c:1236
notify_change+0xbcd/0xee0 fs/attr.c:505
chown_common+0x483/0x610 fs/open.c:680
vfs_fchown fs/open.c:748 [inline]
ksys_fchown+0xe2/0x150 fs/open.c:759
__do_sys_fchown fs/open.c:767 [inline]
__se_sys_fchown fs/open.c:765 [inline]
__x64_sys_fchown+0x76/0x80 fs/open.c:765
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f695a474be9
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:00007f6959ae4038 EFLAGS: 00000246 ORIG_RAX: 000000000000005d
RAX: ffffffffffffffda RBX: 00007f695a69bfa0 RCX: 00007f695a474be9
RDX: 000000003d657a0a RSI: 000000003a736e6f RDI: 0000000000000004
RBP: 00007f695a4f7e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f695a69c038 R14: 00007f695a69bfa0 R15: 00007ffc9f4f7308
</TASK>
(syz.4.37,4477,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xdf8356d3, computed 0x135eb329. Applying ECC.
(syz.4.37,4477,0):ocfs2_block_check_validate:416 ERROR: Fixed CRC32 failed: stored: 0xdf8356d3, computed 0x8e0ad45b
(syz.4.37,4477,0):ocfs2_read_quota_phys_block:160 ERROR: status = -5
(syz.4.37,4477,0):ocfs2_quota_read:201 ERROR: status = -5
Quota error (device loop4): qtree_write_dquot: Error -5 occurred while creating quota
(syz.4.37,4477,1):ocfs2_acquire_dquot:878 ERROR: status = -5