ocfs2: Mounting device (7,6) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
5.15.184-syzkaller #0 Not tainted
------------------------------------------------------
syz.6.665/7226 is trying to acquire lock:
ffff0000f4cfa648 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
ffff0000f4cfa648 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: ocfs2_reserve_local_alloc_bits+0xf8/0x260c fs/ocfs2/localalloc.c:635

but task is already holding lock:
ffff0000f4cfbf60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_write_begin+0x190/0x30c fs/ocfs2/aops.c:1903

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+0xbc/0x12c kernel/locking/rwsem.c:1551
       ocfs2_lock_global_qf+0x1a8/0x22c fs/ocfs2/quota_global.c:314
       ocfs2_acquire_dquot+0x244/0xa2c fs/ocfs2/quota_global.c:816
       dqget+0x658/0xcf4 fs/quota/dquot.c:988
       __dquot_initialize+0x2d4/0xa80 fs/quota/dquot.c:1517
       dquot_initialize+0x24/0x34 fs/quota/dquot.c:1579
       ocfs2_get_init_inode+0x134/0x1a8 fs/ocfs2/namei.c:202
       ocfs2_mknod+0x758/0x1e88 fs/ocfs2/namei.c:310
       ocfs2_mkdir+0x180/0x468 fs/ocfs2/namei.c:657
       vfs_mkdir+0x314/0x4d4 fs/namei.c:4065
       do_mkdirat+0x1bc/0x508 fs/namei.c:4090
       __do_sys_mkdirat fs/namei.c:4105 [inline]
       __se_sys_mkdirat fs/namei.c:4103 [inline]
       __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #6 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}:
       down_write+0xbc/0x12c kernel/locking/rwsem.c:1551
       inode_lock include/linux/fs.h:787 [inline]
       ocfs2_lock_global_qf+0x18c/0x22c fs/ocfs2/quota_global.c:313
       ocfs2_acquire_dquot+0x244/0xa2c fs/ocfs2/quota_global.c:816
       dqget+0x658/0xcf4 fs/quota/dquot.c:988
       __dquot_initialize+0x2d4/0xa80 fs/quota/dquot.c:1517
       dquot_initialize+0x24/0x34 fs/quota/dquot.c:1579
       ocfs2_get_init_inode+0x134/0x1a8 fs/ocfs2/namei.c:202
       ocfs2_mknod+0x758/0x1e88 fs/ocfs2/namei.c:310
       ocfs2_mkdir+0x180/0x468 fs/ocfs2/namei.c:657
       vfs_mkdir+0x314/0x4d4 fs/namei.c:4065
       do_mkdirat+0x1bc/0x508 fs/namei.c:4090
       __do_sys_mkdirat fs/namei.c:4105 [inline]
       __se_sys_mkdirat fs/namei.c:4103 [inline]
       __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #5 (&dquot->dq_lock){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x1edc kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743
       dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507
       ext4_write_dquot+0x1b4/0x31c fs/ext4/super.c:6180
       ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6257
       mark_dquot_dirty fs/quota/dquot.c:372 [inline]
       mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412
       __dquot_free_space+0x76c/0xaa8 fs/quota/dquot.c:1942
       dquot_free_space_nodirty include/linux/quotaops.h:376 [inline]
       dquot_free_space include/linux/quotaops.h:381 [inline]
       dquot_free_block include/linux/quotaops.h:392 [inline]
       ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline]
       ext4_free_blocks+0x1900/0x23cc fs/ext4/mballoc.c:6286
       ext4_remove_blocks fs/ext4/extents.c:2523 [inline]
       ext4_ext_rm_leaf fs/ext4/extents.c:2689 [inline]
       ext4_ext_remove_space+0x1d98/0x3830 fs/ext4/extents.c:2937
       ext4_ext_truncate+0x184/0x24c fs/ext4/extents.c:4471
       ext4_truncate+0x9c0/0xf94 fs/ext4/inode.c:4250
       ext4_evict_inode+0xbec/0x11dc fs/ext4/inode.c:289
       evict+0x3c8/0x810 fs/inode.c:647
       iput_final fs/inode.c:1769 [inline]
       iput+0x6c4/0x77c fs/inode.c:1795
       ext4_process_orphan+0x240/0x2b4 fs/ext4/orphan.c:360
       ext4_orphan_cleanup+0x888/0xf8c fs/ext4/orphan.c:474
       ext4_fill_super+0x7a5c/0x812c fs/ext4/super.c:4975
       mount_bdev+0x264/0x358 fs/super.c:1400
       ext4_mount+0x44/0x58 fs/ext4/super.c:6627
       legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
       vfs_get_tree+0x90/0x274 fs/super.c:1530
       do_new_mount+0x228/0x810 fs/namespace.c:3014
       path_mount+0x5b4/0x1000 fs/namespace.c:3344
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount fs/namespace.c:3542 [inline]
       __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x1fc/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #4 (&ei->i_data_sem){++++}-{3:3}:
       down_write+0xbc/0x12c kernel/locking/rwsem.c:1551
       ext4_map_blocks+0x71c/0x167c fs/ext4/inode.c:666
       mpage_map_one_extent fs/ext4/inode.c:2408 [inline]
       mpage_map_and_submit_extent fs/ext4/inode.c:2461 [inline]
       ext4_writepages+0xf00/0x2c14 fs/ext4/inode.c:2829
       do_writepages+0x36c/0x578 mm/page-writeback.c:2386
       __writeback_single_inode+0x148/0x11f0 fs/fs-writeback.c:1647
       writeback_sb_inodes+0x7fc/0x1378 fs/fs-writeback.c:1930
       __writeback_inodes_wb+0x110/0x394 fs/fs-writeback.c:2001
       wb_writeback+0x3ec/0xe44 fs/fs-writeback.c:2106
       wb_check_background_flush fs/fs-writeback.c:2172 [inline]
       wb_do_writeback fs/fs-writeback.c:2260 [inline]
       wb_workfn+0xa7c/0xdd8 fs/fs-writeback.c:2288
       process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
       worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
       kthread+0x374/0x454 kernel/kthread.c:334
       ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

-> #3 (jbd2_handle){++++}-{0:0}:
       start_this_handle+0xef4/0x11a4 fs/jbd2/transaction.c:464
       jbd2__journal_start+0x28c/0x744 fs/jbd2/transaction.c:521
       jbd2_journal_start+0x3c/0x4c fs/jbd2/transaction.c:560
       ocfs2_start_trans+0x43c/0x794 fs/ocfs2/journal.c:376
       ocfs2_modify_bh+0xe4/0x450 fs/ocfs2/quota_local.c:101
       ocfs2_local_read_info+0x102c/0x131c fs/ocfs2/quota_local.c:764
       dquot_load_quota_sb+0x6c4/0xa24 fs/quota/dquot.c:2463
       dquot_load_quota_inode+0x274/0x4e4 fs/quota/dquot.c:2500
       ocfs2_enable_quotas+0x17c/0x3b4 fs/ocfs2/super.c:927
       ocfs2_fill_super+0x2e74/0x4074 fs/ocfs2/super.c:1140
       mount_bdev+0x264/0x358 fs/super.c:1400
       ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1187
       legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
       vfs_get_tree+0x90/0x274 fs/super.c:1530
       do_new_mount+0x228/0x810 fs/namespace.c:3014
       path_mount+0x5b4/0x1000 fs/namespace.c:3344
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount fs/namespace.c:3542 [inline]
       __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #2 (&journal->j_trans_barrier){.+.+}-{3:3}:
       down_read+0xc0/0x390 kernel/locking/rwsem.c:1498
       ocfs2_start_trans+0x430/0x794 fs/ocfs2/journal.c:374
       ocfs2_modify_bh+0xe4/0x450 fs/ocfs2/quota_local.c:101
       ocfs2_local_read_info+0x102c/0x131c fs/ocfs2/quota_local.c:764
       dquot_load_quota_sb+0x6c4/0xa24 fs/quota/dquot.c:2463
       dquot_load_quota_inode+0x274/0x4e4 fs/quota/dquot.c:2500
       ocfs2_enable_quotas+0x17c/0x3b4 fs/ocfs2/super.c:927
       ocfs2_fill_super+0x2e74/0x4074 fs/ocfs2/super.c:1140
       mount_bdev+0x264/0x358 fs/super.c:1400
       ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1187
       legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
       vfs_get_tree+0x90/0x274 fs/super.c:1530
       do_new_mount+0x228/0x810 fs/namespace.c:3014
       path_mount+0x5b4/0x1000 fs/namespace.c:3344
       do_mount fs/namespace.c:3357 [inline]
       __do_sys_mount fs/namespace.c:3565 [inline]
       __se_sys_mount fs/namespace.c:3542 [inline]
       __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #1 (sb_internal#3){.+.+}-{0:0}:
       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+0x2c4/0x794 fs/ocfs2/journal.c:372
       ocfs2_mknod+0xc60/0x1e88 fs/ocfs2/namei.c:361
       ocfs2_create+0x180/0x468 fs/ocfs2/namei.c:674
       lookup_open fs/namei.c:3462 [inline]
       open_last_lookups fs/namei.c:3532 [inline]
       path_openat+0x1144/0x26e4 fs/namei.c:3739
       do_filp_open+0x164/0x330 fs/namei.c:3769
       do_sys_openat2+0x128/0x3d8 fs/open.c:1253
       do_sys_open fs/open.c:1269 [inline]
       __do_sys_openat fs/open.c:1285 [inline]
       __se_sys_openat fs/open.c:1280 [inline]
       __arm64_sys_openat+0x120/0x154 fs/open.c:1280
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}:
       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+0x2928/0x651c kernel/locking/lockdep.c:5012
       lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623
       down_write+0xbc/0x12c kernel/locking/rwsem.c:1551
       inode_lock include/linux/fs.h:787 [inline]
       ocfs2_reserve_local_alloc_bits+0xf8/0x260c fs/ocfs2/localalloc.c:635
       ocfs2_reserve_clusters_with_limit+0x198/0x9e0 fs/ocfs2/suballoc.c:1162
       ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1223 [inline]
       ocfs2_lock_allocators+0x27c/0x518 fs/ocfs2/suballoc.c:2669
       ocfs2_extend_allocation+0x328/0x1504 fs/ocfs2/file.c:588
       ocfs2_extend_no_holes+0x1a8/0x424 fs/ocfs2/file.c:1030
       ocfs2_expand_nonsparse_inode+0x12c/0x394 fs/ocfs2/aops.c:1622
       ocfs2_write_begin_nolock+0xe14/0x3764 fs/ocfs2/aops.c:1688
       ocfs2_write_begin+0x1b4/0x30c fs/ocfs2/aops.c:1905
       generic_perform_write+0x204/0x480 mm/filemap.c:3785
       __generic_file_write_iter+0x23c/0x454 mm/filemap.c:3912
       ocfs2_file_write_iter+0x12e0/0x1b84 fs/ocfs2/file.c:2472
       call_write_iter include/linux/fs.h:2172 [inline]
       new_sync_write fs/read_write.c:507 [inline]
       vfs_write+0x7c8/0xa2c fs/read_write.c:594
       ksys_pwrite64 fs/read_write.c:701 [inline]
       __do_sys_pwrite64 fs/read_write.c:711 [inline]
       __se_sys_pwrite64 fs/read_write.c:708 [inline]
       __arm64_sys_pwrite64+0x170/0x200 fs/read_write.c:708
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

other info that might help us debug this:

Chain exists of:
  &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7 --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3 --> &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]#3);
                               lock(&ocfs2_quota_ip_alloc_sem_key);
  lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7);

 *** DEADLOCK ***

3 locks held by syz.6.665/7226:
 #0: ffff0000ea620460 (sb_writers#19){.+.+}-{0:0}, at: vfs_write+0x228/0xa2c fs/read_write.c:590
 #1: ffff0000f4cfc2c8 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
 #1: ffff0000f4cfc2c8 (&sb->s_type->i_mutex_key#34){+.+.}-{3:3}, at: ocfs2_file_write_iter+0x388/0x1b84 fs/ocfs2/file.c:2402
 #2: ffff0000f4cfbf60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_write_begin+0x190/0x30c fs/ocfs2/aops.c:1903

stack backtrace:
CPU: 0 PID: 7226 Comm: syz.6.665 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 print_circular_bug+0x148/0x1b0 kernel/locking/lockdep.c:2011
 check_noncircular+0x240/0x2d4 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+0x2928/0x651c kernel/locking/lockdep.c:5012
 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623
 down_write+0xbc/0x12c kernel/locking/rwsem.c:1551
 inode_lock include/linux/fs.h:787 [inline]
 ocfs2_reserve_local_alloc_bits+0xf8/0x260c fs/ocfs2/localalloc.c:635
 ocfs2_reserve_clusters_with_limit+0x198/0x9e0 fs/ocfs2/suballoc.c:1162
 ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1223 [inline]
 ocfs2_lock_allocators+0x27c/0x518 fs/ocfs2/suballoc.c:2669
 ocfs2_extend_allocation+0x328/0x1504 fs/ocfs2/file.c:588
 ocfs2_extend_no_holes+0x1a8/0x424 fs/ocfs2/file.c:1030
 ocfs2_expand_nonsparse_inode+0x12c/0x394 fs/ocfs2/aops.c:1622
 ocfs2_write_begin_nolock+0xe14/0x3764 fs/ocfs2/aops.c:1688
 ocfs2_write_begin+0x1b4/0x30c fs/ocfs2/aops.c:1905
 generic_perform_write+0x204/0x480 mm/filemap.c:3785
 __generic_file_write_iter+0x23c/0x454 mm/filemap.c:3912
 ocfs2_file_write_iter+0x12e0/0x1b84 fs/ocfs2/file.c:2472
 call_write_iter include/linux/fs.h:2172 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x7c8/0xa2c fs/read_write.c:594
 ksys_pwrite64 fs/read_write.c:701 [inline]
 __do_sys_pwrite64 fs/read_write.c:711 [inline]
 __se_sys_pwrite64 fs/read_write.c:708 [inline]
 __arm64_sys_pwrite64+0x170/0x200 fs/read_write.c:708
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584