(syz.3.3384,18300,0):ocfs2_block_check_validate:400 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,3) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.16.0-syzkaller-12016-gbec077162bd0 #0 Not tainted ------------------------------------------------------ syz.3.3384/18300 is trying to acquire lock: ffff888054392378 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_calc_xattr_init+0x5e5/0xc90 fs/ocfs2/xattr.c:627 but task is already holding lock: ffff88805768a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4} , at: inode_lock include/linux/fs.h:869 [inline] , at: ocfs2_reserve_suballoc_bits+0x11c/0x4910 fs/ocfs2/suballoc.c:788 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:869 [inline] ocfs2_remove_inode+0x15b/0x8a0 fs/ocfs2/inode.c:731 ocfs2_wipe_inode+0x446/0x1210 fs/ocfs2/inode.c:894 ocfs2_delete_inode fs/ocfs2/inode.c:1155 [inline] ocfs2_evict_inode+0x6e0/0x1680 fs/ocfs2/inode.c:1292 evict+0x3e6/0x920 fs/inode.c:810 iput_final fs/inode.c:1897 [inline] iput fs/inode.c:1923 [inline] iput+0x521/0x880 fs/inode.c:1909 ocfs2_dentry_iput+0x139/0x330 fs/ocfs2/dcache.c:407 dentry_unlink_inode+0x282/0x480 fs/dcache.c:464 __dentry_kill+0x1d0/0x600 fs/dcache.c:669 dput.part.0+0x4b1/0x9b0 fs/dcache.c:911 dput+0x1f/0x30 fs/dcache.c:901 __fput+0x51c/0xb70 fs/file_table.c:476 task_work_run+0x150/0x240 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x86f/0x2bf0 kernel/exit.c:961 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102 get_signal+0x2673/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:869 [inline] ocfs2_del_inode_from_orphan+0x112/0x700 fs/ocfs2/namei.c:2730 ocfs2_dio_end_io_write+0x2cb/0xf30 fs/ocfs2/aops.c:2306 ocfs2_dio_end_io+0x136/0x2c0 fs/ocfs2/aops.c:2404 dio_complete+0x224/0x970 fs/direct-io.c:281 __blockdev_direct_IO+0x3027/0x3c40 fs/direct-io.c:1303 ocfs2_direct_IO+0x263/0x360 fs/ocfs2/aops.c:2441 generic_file_direct_write+0x19a/0x410 mm/filemap.c:4109 __generic_file_write_iter+0x11b/0x240 mm/filemap.c:4278 ocfs2_file_write_iter+0xbc4/0x21b0 fs/ocfs2/file.c:2469 iter_file_splice_write+0x91f/0x1150 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x192/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x345/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xb06/0xe50 fs/read_write.c:1370 __do_sys_sendfile64 fs/read_write.c:1431 [inline] __se_sys_sendfile64 fs/read_write.c:1417 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1417 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1590 ocfs2_try_remove_refcount_tree+0xa7/0x320 fs/ocfs2/refcounttree.c:932 ocfs2_truncate_file+0xbba/0x17c0 fs/ocfs2/file.c:521 ocfs2_setattr+0x1594/0x2560 fs/ocfs2/file.c:1212 notify_change+0x6a9/0x1230 fs/attr.c:552 do_truncate+0x1d7/0x230 fs/open.c:68 handle_truncate fs/namei.c:3508 [inline] do_open fs/namei.c:3891 [inline] path_openat+0x2678/0x2cb0 fs/namei.c:4046 do_filp_open+0x20b/0x470 fs/namei.c:4073 do_sys_openat2+0x11b/0x1d0 fs/open.c:1435 do_sys_open fs/open.c:1450 [inline] __do_sys_creat fs/open.c:1528 [inline] __se_sys_creat fs/open.c:1522 [inline] __x64_sys_creat+0xcc/0x120 fs/open.c:1522 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&oi->ip_xattr_sem){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x12a6/0x1ce0 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825 down_read+0x9b/0x480 kernel/locking/rwsem.c:1537 ocfs2_calc_xattr_init+0x5e5/0xc90 fs/ocfs2/xattr.c:627 ocfs2_mknod+0xa2b/0x2540 fs/ocfs2/namei.c:333 ocfs2_create+0x17c/0x460 fs/ocfs2/namei.c:676 lookup_open.isra.0+0x11d3/0x1580 fs/namei.c:3708 open_last_lookups fs/namei.c:3807 [inline] path_openat+0x893/0x2cb0 fs/namei.c:4043 do_filp_open+0x20b/0x470 fs/namei.c:4073 do_sys_openat2+0x11b/0x1d0 fs/open.c:1435 do_sys_open fs/open.c:1450 [inline] __do_sys_openat fs/open.c:1466 [inline] __se_sys_openat fs/open.c:1461 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1461 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 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: &oi->ip_xattr_sem --> &ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE] --> &ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE] Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]); lock(&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]); lock(&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]); rlock(&oi->ip_xattr_sem); *** DEADLOCK *** 3 locks held by syz.3.3384/18300: #0: ffff88805c63a428 (sb_writers#37){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3796 [inline] #0: ffff88805c63a428 (sb_writers#37){.+.+}-{0:0}, at: path_openat+0x1f0f/0x2cb0 fs/namei.c:4043 #1: ffff888054392640 (&type->i_mutex_dir_key#25){++++}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline] #1: ffff888054392640 (&type->i_mutex_dir_key#25){++++}-{4:4}, at: open_last_lookups fs/namei.c:3804 [inline] #1: ffff888054392640 (&type->i_mutex_dir_key#25){++++}-{4:4}, at: path_openat+0x1534/0x2cb0 fs/namei.c:4043 #2: ffff88805768a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline] #2: ffff88805768a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11c/0x4910 fs/ocfs2/suballoc.c:788 stack backtrace: CPU: 0 UID: 0 PID: 18300 Comm: syz.3.3384 Not tainted 6.16.0-syzkaller-12016-gbec077162bd0 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 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:2043 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x12a6/0x1ce0 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825 down_read+0x9b/0x480 kernel/locking/rwsem.c:1537 ocfs2_calc_xattr_init+0x5e5/0xc90 fs/ocfs2/xattr.c:627 ocfs2_mknod+0xa2b/0x2540 fs/ocfs2/namei.c:333 ocfs2_create+0x17c/0x460 fs/ocfs2/namei.c:676 lookup_open.isra.0+0x11d3/0x1580 fs/namei.c:3708 open_last_lookups fs/namei.c:3807 [inline] path_openat+0x893/0x2cb0 fs/namei.c:4043 do_filp_open+0x20b/0x470 fs/namei.c:4073 do_sys_openat2+0x11b/0x1d0 fs/open.c:1435 do_sys_open fs/open.c:1450 [inline] __do_sys_openat fs/open.c:1466 [inline] __se_sys_openat fs/open.c:1461 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1461 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ddd98ebe9 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:00007f9dde8db038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f9dddbb5fa0 RCX: 00007f9ddd98ebe9 RDX: 0000000000183341 RSI: 0000200000000080 RDI: ffffffffffffff9c RBP: 00007f9ddda11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9dddbb6038 R14: 00007f9dddbb5fa0 R15: 00007ffcced6e468 ocfs2: Unmounting device (7,3) on (node local)