Warning: Permanently added '10.128.1.113' (ECDSA) to the list of known hosts. syzkaller login: [ 59.020533] IPVS: ftp: loaded support on port[0] = 21 executing program [ 59.187119] F2FS-fs (loop0): Found nat_bits in checkpoint [ 59.220664] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 [ 59.280779] ------------[ cut here ]------------ [ 59.285584] kernel BUG at fs/f2fs/node.c:2780! [ 59.290231] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 59.295583] Modules linked in: [ 59.298772] CPU: 0 PID: 7987 Comm: syz-executor103 Not tainted 4.14.304-syzkaller #0 [ 59.306622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 59.315966] task: ffff888095a20440 task.stack: ffff8880b33c8000 [ 59.322023] RIP: 0010:destroy_node_manager+0x4f4/0x780 [ 59.327316] RSP: 0018:ffff8880b33cf7b0 EFLAGS: 00010297 [ 59.332654] RAX: ffff888095a20440 RBX: ffff8880b30729f0 RCX: dffffc0000000000 [ 59.339898] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880b3072a14 [ 59.347142] RBP: ffff8880b3072900 R08: ffffffff8b9c68a8 R09: 000000000004058d [ 59.354387] R10: ffff888095a20cf0 R11: ffff888095a20440 R12: ffff8880b3072a18 [ 59.361634] R13: ffffed1012aa950e R14: ffff8880b30729f0 R15: ffff88809554a840 [ 59.368878] FS: 000055555639e300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 59.377084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.382939] CR2: 00007f3c25871140 CR3: 0000000008e6a000 CR4: 00000000003406f0 [ 59.390290] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.397539] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.404916] Call Trace: [ 59.407489] ? build_node_manager+0x1d50/0x1d50 [ 59.412141] ? trace_hardirqs_on+0x10/0x10 [ 59.416359] ? debug_object_activate+0x292/0x490 [ 59.421093] ? mark_held_locks+0xa6/0xf0 [ 59.425145] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 59.430225] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 59.435216] ? debug_object_active_state+0x236/0x330 [ 59.440310] ? mark_held_locks+0xa6/0xf0 [ 59.444345] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 59.449442] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 59.454434] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 59.459555] ? debug_object_active_state+0x236/0x330 [ 59.464808] ? debug_object_free+0x320/0x320 [ 59.469189] ? lock_acquire+0x170/0x3f0 [ 59.473145] ? mark_held_locks+0xa6/0xf0 [ 59.477179] ? check_preemption_disabled+0x35/0x240 [ 59.482167] ? __call_rcu.constprop.0+0x245/0x7d0 [ 59.486985] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 59.491978] ? f2fs_drop_inode+0x7f0/0x7f0 [ 59.496186] ? destroy_inode+0xb9/0x110 [ 59.500132] ? iput+0x458/0x7e0 [ 59.503386] ? f2fs_show_options+0xdf0/0xdf0 [ 59.507767] f2fs_put_super+0x3e1/0x840 [ 59.511719] ? f2fs_quota_off_umount+0xb0/0xb0 [ 59.516274] ? dispose_list+0x1e0/0x1e0 [ 59.520224] ? fsnotify_unmount_inodes+0x1b4/0x210 [ 59.525128] ? f2fs_quota_off_umount+0xb0/0xb0 [ 59.529686] generic_shutdown_super+0x144/0x370 [ 59.534331] kill_block_super+0x95/0xe0 [ 59.538277] deactivate_locked_super+0x6c/0xd0 [ 59.542848] deactivate_super+0x7f/0xa0 [ 59.546796] cleanup_mnt+0x186/0x2c0 [ 59.550495] task_work_run+0x11f/0x190 [ 59.554376] do_exit+0xa44/0x2850 [ 59.557812] ? __do_page_fault+0x571/0xad0 [ 59.562144] ? mm_update_next_owner+0x5b0/0x5b0 [ 59.566796] ? lock_downgrade+0x740/0x740 [ 59.570930] do_group_exit+0x100/0x2e0 [ 59.574807] SyS_exit_group+0x19/0x20 [ 59.578588] ? do_group_exit+0x2e0/0x2e0 [ 59.582630] do_syscall_64+0x1d5/0x640 [ 59.586502] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 59.591672] RIP: 0033:0x7f3c257f89e9 [ 59.595359] RSP: 002b:00007ffc26a56cb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 59.603041] RAX: ffffffffffffffda RBX: 00007f3c25873330 RCX: 00007f3c257f89e9 [ 59.610290] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 59.617561] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f3c2586de40 [ 59.624809] R10: 00007ffc26a56bd0 R11: 0000000000000246 R12: 00007f3c25873330 [ 59.632078] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 59.639328] Code: 40 6c 00 00 00 00 48 81 c4 d8 03 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 6a 38 89 fe 0f 0b e8 63 38 89 fe 0f 0b e8 5c 38 89 fe <0f> 0b e8 55 38 89 fe 0f 0b e8 4e 38 89 fe 48 8b 7c 24 28 e8 74 [ 59.658393] RIP: destroy_node_manager+0x4f4/0x780 RSP: ffff8880b33cf7b0 [ 59.665246] ---[ end trace 4dcfb95fc50408fa ]--- [ 59.670238] Kernel panic - not syncing: Fatal exception [ 59.675850] Kernel Offset: disabled [ 59.679488] Rebooting in 86400 seconds..