Warning: Permanently added '10.128.0.201' (ED25519) to the list of known hosts. executing program [ 80.444433][ T4277] loop0: detected capacity change from 0 to 32768 [ 80.452416][ T4277] ======================================================= [ 80.452416][ T4277] WARNING: The mand mount option has been deprecated and [ 80.452416][ T4277] and is ignored by this kernel. Remove the mand [ 80.452416][ T4277] option from the mount to silence this warning. [ 80.452416][ T4277] ======================================================= [ 80.503545][ T4277] JBD2: Ignoring recovery information on journal [ 80.556759][ T4277] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 80.576881][ T26] audit: type=1800 audit(1786621765.928:2): pid=4277 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor245" name="file1" dev="loop0" ino=17058 res=0 errno=0 [ 80.663577][ T26] audit: type=1800 audit(1786621766.008:3): pid=4282 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor245" name="file1" dev="loop0" ino=17058 res=0 errno=0 [ 80.974383][ T4277] [ 80.976775][ T4277] ====================================================== [ 80.983792][ T4277] WARNING: possible circular locking dependency detected [ 80.990909][ T4277] syzkaller #0 Not tainted [ 80.995323][ T4277] ------------------------------------------------------ [ 81.002350][ T4277] syz-executor245/4277 is trying to acquire lock: [ 81.008774][ T4277] ffff888072455108 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{3:3}, at: __ocfs2_flush_truncate_log+0x36a/0x1220 [ 81.022050][ T4277] [ 81.022050][ T4277] but task is already holding lock: [ 81.029413][ T4277] ffff88807245b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: ocfs2_flush_truncate_log+0x43/0x60 [ 81.042131][ T4277] [ 81.042131][ T4277] which lock already depends on the new lock. [ 81.042131][ T4277] [ 81.052529][ T4277] [ 81.052529][ T4277] the existing dependency chain (in reverse order) is: [ 81.061538][ T4277] [ 81.061538][ T4277] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}: [ 81.072071][ T4277] down_write+0x36/0x60 [ 81.076759][ T4277] __ocfs2_move_extents_range+0x1a31/0x3450 [ 81.083181][ T4277] ocfs2_move_extents+0x409/0xa40 [ 81.088731][ T4277] ocfs2_ioctl_move_extents+0x4d4/0x6e0 [ 81.094879][ T4277] ocfs2_ioctl+0x31d/0x7c0 [ 81.099827][ T4277] __se_sys_ioctl+0xfa/0x170 [ 81.104948][ T4277] do_syscall_64+0x4c/0xa0 [ 81.109894][ T4277] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 81.116331][ T4277] [ 81.116331][ T4277] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{3:3}: [ 81.126863][ T4277] __lock_acquire+0x2d18/0x7c40 [ 81.132275][ T4277] lock_acquire+0x1bb/0x4a0 [ 81.137315][ T4277] down_write+0x36/0x60 [ 81.142006][ T4277] __ocfs2_flush_truncate_log+0x36a/0x1220 [ 81.148374][ T4277] ocfs2_flush_truncate_log+0x4b/0x60 [ 81.154296][ T4277] ocfs2_sync_fs+0x119/0x330 [ 81.159453][ T4277] sync_filesystem+0x1be/0x220 [ 81.164788][ T4277] generic_shutdown_super+0x6b/0x340 [ 81.170648][ T4277] kill_block_super+0x7c/0xe0 [ 81.175881][ T4277] deactivate_locked_super+0x93/0xf0 [ 81.181722][ T4277] cleanup_mnt+0x471/0x4f0 [ 81.186671][ T4277] task_work_run+0x1d0/0x260 [ 81.191792][ T4277] do_exit+0x9d5/0x2570 [ 81.196511][ T4277] do_group_exit+0x229/0x2e0 [ 81.201869][ T4277] get_signal+0x1259/0x1340 [ 81.206923][ T4277] arch_do_signal_or_restart+0xc4/0x1310 [ 81.213085][ T4277] exit_to_user_mode_loop+0x70/0x110 [ 81.218907][ T4277] exit_to_user_mode_prepare+0xee/0x180 [ 81.224998][ T4277] syscall_exit_to_user_mode+0x16/0x40 [ 81.230982][ T4277] do_syscall_64+0x58/0xa0 [ 81.235940][ T4277] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 81.242402][ T4277] [ 81.242402][ T4277] other info that might help us debug this: [ 81.242402][ T4277] [ 81.252659][ T4277] Possible unsafe locking scenario: [ 81.252659][ T4277] [ 81.260128][ T4277] CPU0 CPU1 [ 81.265612][ T4277] ---- ---- [ 81.271019][ T4277] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 81.278343][ T4277] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 81.288205][ T4277] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 81.298057][ T4277] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 81.305382][ T4277] [ 81.305382][ T4277] *** DEADLOCK *** [ 81.305382][ T4277] [ 81.313582][ T4277] 2 locks held by syz-executor245/4277: [ 81.319156][ T4277] #0: ffff8880765ec0e0 (&type->s_umount_key#49){+.+.}-{3:3}, at: deactivate_super+0xa0/0xd0 [ 81.329449][ T4277] #1: ffff88807245b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}, at: ocfs2_flush_truncate_log+0x43/0x60 [ 81.342607][ T4277] [ 81.342607][ T4277] stack backtrace: [ 81.348524][ T4277] CPU: 0 PID: 4277 Comm: syz-executor245 Not tainted syzkaller #0 [ 81.356402][ T4277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 81.366538][ T4277] Call Trace: [ 81.369847][ T4277] [ 81.372803][ T4277] dump_stack_lvl+0x188/0x24e [ 81.377524][ T4277] ? load_image+0x410/0x410 [ 81.382061][ T4277] ? show_regs_print_info+0x12/0x12 [ 81.387310][ T4277] ? print_circular_bug+0x12b/0x1a0 [ 81.392560][ T4277] check_noncircular+0x296/0x330 [ 81.397554][ T4277] ? add_chain_block+0x9b0/0x9b0 [ 81.402539][ T4277] ? lockdep_lock+0x15c/0x1f0 [ 81.407364][ T4277] ? _find_first_zero_bit+0xd2/0x100 [ 81.412708][ T4277] __lock_acquire+0x2d18/0x7c40 [ 81.417628][ T4277] ? igrab+0x87/0x90 [ 81.421544][ T4277] ? verify_lock_unused+0x140/0x140 [ 81.426771][ T4277] ? __lock_acquire+0x7c40/0x7c40 [ 81.431821][ T4277] ? do_raw_spin_lock+0x128/0x2f0 [ 81.436874][ T4277] ? __rwlock_init+0x140/0x140 [ 81.441646][ T4277] ? do_raw_spin_unlock+0x11d/0x230 [ 81.446872][ T4277] lock_acquire+0x1bb/0x4a0 [ 81.451403][ T4277] ? __ocfs2_flush_truncate_log+0x36a/0x1220 [ 81.457425][ T4277] ? __wake_up+0x12e/0x1a0 [ 81.461886][ T4277] ? __might_sleep+0xd0/0xd0 [ 81.466512][ T4277] ? read_lock_is_recursive+0x10/0x10 [ 81.471932][ T4277] ? __bpf_trace_jbd2_shrink_checkpoint_list+0x50/0x50 [ 81.478834][ T4277] down_write+0x36/0x60 [ 81.483027][ T4277] ? __ocfs2_flush_truncate_log+0x36a/0x1220 [ 81.489047][ T4277] __ocfs2_flush_truncate_log+0x36a/0x1220 [ 81.494894][ T4277] ? ocfs2_truncate_log_needs_flush+0x300/0x300 [ 81.501169][ T4277] ? ocfs2_sync_fs+0xe1/0x330 [ 81.505925][ T4277] ? rwsem_write_trylock+0x135/0x1c0 [ 81.511252][ T4277] ? clear_nonspinnable+0x60/0x60 [ 81.516351][ T4277] ? __rwlock_init+0x140/0x140 [ 81.521174][ T4277] ocfs2_flush_truncate_log+0x4b/0x60 [ 81.526606][ T4277] ocfs2_sync_fs+0x119/0x330 [ 81.531242][ T4277] ? ocfs2_put_super+0x230/0x230 [ 81.536223][ T4277] ? writeback_inodes_sb_nr+0x30/0x30 [ 81.541647][ T4277] ? get_nr_dirty_inodes+0x290/0x2c0 [ 81.546984][ T4277] sync_filesystem+0x1be/0x220 [ 81.551803][ T4277] generic_shutdown_super+0x6b/0x340 [ 81.557123][ T4277] kill_block_super+0x7c/0xe0 [ 81.561842][ T4277] deactivate_locked_super+0x93/0xf0 [ 81.567168][ T4277] cleanup_mnt+0x471/0x4f0 [ 81.571620][ T4277] task_work_run+0x1d0/0x260 [ 81.576253][ T4277] ? task_work_cancel+0x220/0x220 [ 81.581325][ T4277] ? do_exit+0x9d0/0x2570 [ 81.585749][ T4277] ? kmem_cache_free+0xf7/0x2a0 [ 81.590647][ T4277] do_exit+0x9d5/0x2570 [ 81.594861][ T4277] ? put_task_struct+0x80/0x80 [ 81.599670][ T4277] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 81.605698][ T4277] ? lock_chain_count+0x20/0x20 [ 81.610589][ T4277] ? _raw_spin_lock_irq+0xb7/0xf0 [ 81.615651][ T4277] do_group_exit+0x229/0x2e0 [ 81.620287][ T4277] ? lockdep_hardirqs_on+0x94/0x140 [ 81.625539][ T4277] get_signal+0x1259/0x1340 [ 81.630099][ T4277] arch_do_signal_or_restart+0xc4/0x1310 [ 81.635791][ T4277] ? common_file_perm+0x171/0x1c0 [ 81.640872][ T4277] ? fput+0x150/0x1a0 [ 81.644974][ T4277] ? do_sendfile+0x9e1/0xe20 [ 81.649629][ T4277] ? get_sigframe_size+0x10/0x10 [ 81.654698][ T4277] ? __ia32_sys_get_robust_list+0x100/0x100 [ 81.660693][ T4277] ? do_pwritev+0x3a0/0x3a0 [ 81.665229][ T4277] ? __se_sys_sendfile64+0x141/0x1a0 [ 81.670562][ T4277] ? exit_to_user_mode_loop+0x3b/0x110 [ 81.676072][ T4277] exit_to_user_mode_loop+0x70/0x110 [ 81.681405][ T4277] exit_to_user_mode_prepare+0xee/0x180 [ 81.686990][ T4277] syscall_exit_to_user_mode+0x16/0x40 [ 81.692468][ T4277] do_syscall_64+0x58/0xa0 [ 81.696891][ T4277] ? clear_bhb_loop+0x60/0xb0 [ 81.701576][ T4277] ? clear_bhb_loop+0x60/0xb0 [ 81.706275][ T4277] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 81.712209][ T4277] RIP: 0033:0x7f7c266b1b79 [ 81.716664][ T4277] Code: Unable to access opcode bytes at 0x7f7c266b1b4f. [ 81.723708][ T4277] RSP: 002b:00007f7c2667f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 81.732161][ T4277] RAX: 0000000000100000 RBX: 00007f7c26757e48 RCX: 00007f7c266b1b79 [ 81.740134][ T4277] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 [ 81.748102][ T4277] RBP: 00007f7c26757e40 R08: 00007f7c2667fcdc R09: 0000000000000000 [ 81.756091][ T4277] R10: 0000000000fffe82 R11: 0000000000000246 R12: 00007f7c26757e4c [ 81.764076][ T4277] R13: 0000000000000010 R14: 00007ffebef2e900 R15: 00007ffebef2e9e8 [ 81.772071][ T4277] [ 81.784191][ T4277] ocfs2: Unmounting device (7,0) on (node local)