(syz.0.5487,29179,1):ocfs2_block_check_validate:400 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 Not tainted ------------------------------------------------------ syz.0.5487/29179 is trying to acquire lock: ffff88805678cda0 (&ocfs2_quota_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_lock_global_qf+0x1c1/0x2d0 fs/ocfs2/quota_global.c:314 but task is already holding lock: ffff88805678d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] ffff88805678d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: ocfs2_lock_global_qf+0x194/0x2d0 fs/ocfs2/quota_global.c:313 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:867 [inline] ocfs2_lock_global_qf+0x194/0x2d0 fs/ocfs2/quota_global.c:313 ocfs2_acquire_dquot+0x258/0xb00 fs/ocfs2/quota_global.c:828 dqget+0x693/0x1180 fs/quota/dquot.c:977 __dquot_initialize+0x586/0xd50 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0xe7/0x1b0 fs/ocfs2/namei.c:202 ocfs2_mknod+0x974/0x2540 fs/ocfs2/namei.c:310 ocfs2_create+0x17c/0x460 fs/ocfs2/namei.c:673 lookup_open.isra.0+0x11d3/0x1580 fs/namei.c:3701 open_last_lookups fs/namei.c:3800 [inline] path_openat+0x905/0x2d40 fs/namei.c:4036 do_filp_open+0x20b/0x470 fs/namei.c:4066 do_sys_openat2+0x11b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&dquot->dq_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746 wait_on_dquot fs/quota/dquot.c:354 [inline] dqget+0x5f1/0x1180 fs/quota/dquot.c:972 __dquot_initialize+0x586/0xd50 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0xe7/0x1b0 fs/ocfs2/namei.c:202 ocfs2_mknod+0x974/0x2540 fs/ocfs2/namei.c:310 ocfs2_create+0x17c/0x460 fs/ocfs2/namei.c:673 lookup_open.isra.0+0x11d3/0x1580 fs/namei.c:3701 open_last_lookups fs/namei.c:3800 [inline] path_openat+0x905/0x2d40 fs/namei.c:4036 do_filp_open+0x20b/0x470 fs/namei.c:4066 do_sys_openat2+0x11b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:867 [inline] ocfs2_remove_inode+0x15b/0x8a0 fs/ocfs2/inode.c:669 ocfs2_wipe_inode+0x446/0x1210 fs/ocfs2/inode.c:832 ocfs2_delete_inode fs/ocfs2/inode.c:1093 [inline] ocfs2_evict_inode+0x6e0/0x1680 fs/ocfs2/inode.c:1230 evict+0x3e6/0x920 fs/inode.c:810 iput_final fs/inode.c:1898 [inline] iput fs/inode.c:1924 [inline] iput+0x521/0x880 fs/inode.c:1910 d_delete_notify include/linux/fsnotify.h:402 [inline] vfs_rmdir fs/namei.c:4467 [inline] vfs_rmdir+0x487/0x690 fs/namei.c:4431 do_rmdir+0x2e8/0x3c0 fs/namei.c:4509 __do_sys_rmdir fs/namei.c:4528 [inline] __se_sys_rmdir fs/namei.c:4526 [inline] __x64_sys_rmdir+0xc5/0x110 fs/namei.c:4526 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:867 [inline] ocfs2_del_inode_from_orphan+0x112/0x700 fs/ocfs2/namei.c:2727 ocfs2_dio_end_io_write+0x2cb/0xf30 fs/ocfs2/aops.c:2303 ocfs2_dio_end_io+0x136/0x2c0 fs/ocfs2/aops.c:2401 dio_complete+0x224/0x970 fs/direct-io.c:281 __blockdev_direct_IO+0x33eb/0x4080 fs/direct-io.c:1303 ocfs2_direct_IO+0x263/0x360 fs/ocfs2/aops.c:2438 generic_file_direct_write+0x19a/0x410 mm/filemap.c:4037 __generic_file_write_iter+0x11b/0x240 mm/filemap.c:4206 ocfs2_file_write_iter+0xbc4/0x21b0 fs/ocfs2/file.c:2469 do_iter_readv_writev+0x657/0x950 fs/read_write.c:825 vfs_writev+0x353/0xdc0 fs/read_write.c:1055 do_writev+0x132/0x330 fs/read_write.c:1101 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ocfs2_quota_ip_alloc_sem_key){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 down_write+0x92/0x200 kernel/locking/rwsem.c:1577 ocfs2_lock_global_qf+0x1c1/0x2d0 fs/ocfs2/quota_global.c:314 ocfs2_acquire_dquot+0x258/0xb00 fs/ocfs2/quota_global.c:828 dqget+0x693/0x1180 fs/quota/dquot.c:977 __dquot_initialize+0x586/0xd50 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0xe7/0x1b0 fs/ocfs2/namei.c:202 ocfs2_mknod+0x974/0x2540 fs/ocfs2/namei.c:310 ocfs2_create+0x17c/0x460 fs/ocfs2/namei.c:673 lookup_open.isra.0+0x11d3/0x1580 fs/namei.c:3701 open_last_lookups fs/namei.c:3800 [inline] path_openat+0x905/0x2d40 fs/namei.c:4036 do_filp_open+0x20b/0x470 fs/namei.c:4066 do_sys_openat2+0x11b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &ocfs2_quota_ip_alloc_sem_key --> &dquot->dq_lock --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7); lock(&dquot->dq_lock); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7); lock(&ocfs2_quota_ip_alloc_sem_key); *** DEADLOCK *** 5 locks held by syz.0.5487/29179: #0: ffff88805243e420 (sb_writers#29){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3789 [inline] #0: ffff88805243e420 (sb_writers#29){.+.+}-{0:0}, at: path_openat+0x1f85/0x2d40 fs/namei.c:4036 #1: ffff88805678b480 (&type->i_mutex_dir_key#21){++++}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #1: ffff88805678b480 (&type->i_mutex_dir_key#21){++++}-{4:4}, at: open_last_lookups fs/namei.c:3797 [inline] #1: ffff88805678b480 (&type->i_mutex_dir_key#21){++++}-{4:4}, at: path_openat+0x15a5/0x2d40 fs/namei.c:4036 #2: ffff8880475a5100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #2: ffff8880475a5100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11c/0x48d0 fs/ocfs2/suballoc.c:786 #3: ffff8880477e60a8 (&dquot->dq_lock){+.+.}-{4:4}, at: ocfs2_acquire_dquot+0x24b/0xb00 fs/ocfs2/quota_global.c:823 #4: ffff88805678d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #4: ffff88805678d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: ocfs2_lock_global_qf+0x194/0x2d0 fs/ocfs2/quota_global.c:313 stack backtrace: CPU: 0 UID: 0 PID: 29179 Comm: syz.0.5487 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2079 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2211 check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 down_write+0x92/0x200 kernel/locking/rwsem.c:1577 ocfs2_lock_global_qf+0x1c1/0x2d0 fs/ocfs2/quota_global.c:314 ocfs2_acquire_dquot+0x258/0xb00 fs/ocfs2/quota_global.c:828 dqget+0x693/0x1180 fs/quota/dquot.c:977 __dquot_initialize+0x586/0xd50 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0xe7/0x1b0 fs/ocfs2/namei.c:202 ocfs2_mknod+0x974/0x2540 fs/ocfs2/namei.c:310 ocfs2_create+0x17c/0x460 fs/ocfs2/namei.c:673 lookup_open.isra.0+0x11d3/0x1580 fs/namei.c:3701 open_last_lookups fs/namei.c:3800 [inline] path_openat+0x905/0x2d40 fs/namei.c:4036 do_filp_open+0x20b/0x470 fs/namei.c:4066 do_sys_openat2+0x11b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff1b978e169 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:00007ff1ba6ad038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff1b99b5fa0 RCX: 00007ff1b978e169 RDX: 000000000000275a RSI: 00002000000001c0 RDI: ffffffffffffff9c RBP: 00007ff1b9810a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff1b99b5fa0 R15: 00007ffd896dd5d8