Warning: Permanently added '10.128.0.173' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 59.859012][ T6839] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.256826][ T659] ------------[ cut here ]------------ [ 61.262440][ T659] refcount_t: addition on 0; use-after-free. [ 61.268639][ T659] WARNING: CPU: 1 PID: 659 at lib/refcount.c:25 refcount_warn_saturate+0x169/0x1e0 [ 61.277900][ T659] Kernel panic - not syncing: panic_on_warn set ... [ 61.286260][ T659] CPU: 1 PID: 659 Comm: kworker/u4:5 Not tainted 5.9.0-rc5-syzkaller #0 [ 61.294565][ T659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.304625][ T659] Workqueue: qrtr_ns_handler qrtr_ns_worker [ 61.310505][ T659] Call Trace: [ 61.313800][ T659] dump_stack+0x198/0x1fd [ 61.318132][ T659] panic+0x382/0x7fb [ 61.322047][ T659] ? __warn_printk+0xf3/0xf3 [ 61.326627][ T659] ? _raw_spin_unlock+0x24/0x40 [ 61.331500][ T659] ? __printk_safe_exit+0x5/0x10 [ 61.336417][ T659] ? console_unlock+0x733/0xe60 [ 61.341267][ T659] ? __warn.cold+0x5/0x4b [ 61.345599][ T659] ? __warn+0xd6/0x1f2 [ 61.349674][ T659] ? refcount_warn_saturate+0x169/0x1e0 [ 61.355209][ T659] __warn.cold+0x20/0x4b [ 61.359455][ T659] ? wake_up_klogd.part.0+0x8e/0xd0 [ 61.364665][ T659] ? refcount_warn_saturate+0x169/0x1e0 [ 61.370219][ T659] report_bug+0x1bd/0x210 [ 61.374558][ T659] handle_bug+0x38/0x90 [ 61.378717][ T659] exc_invalid_op+0x14/0x40 [ 61.383377][ T659] asm_exc_invalid_op+0x12/0x20 [ 61.388214][ T659] RIP: 0010:refcount_warn_saturate+0x169/0x1e0 [ 61.394370][ T659] Code: 07 31 ff 89 de e8 67 5d b6 fd 84 db 0f 85 36 ff ff ff e8 3a 61 b6 fd 48 c7 c7 c0 72 d8 88 c6 05 2d 55 94 07 01 e8 29 9d 86 fd <0f> 0b e9 17 ff ff ff e8 1b 61 b6 fd 0f b6 1d 12 55 94 07 31 ff 89 [ 61.413973][ T659] RSP: 0018:ffffc90002ed79d8 EFLAGS: 00010086 [ 61.420120][ T659] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 61.428080][ T659] RDX: ffff8880a79ec340 RSI: ffffffff815f5a85 RDI: fffff520005daf2d [ 61.436063][ T659] RBP: 0000000000000002 R08: 0000000000000001 R09: ffff8880ae520f8b [ 61.444032][ T659] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a91c3640 [ 61.452009][ T659] R13: ffff88809d5ed400 R14: ffff8880a1eabaf0 R15: ffff8880a1eabaf4 [ 61.460160][ T659] ? vprintk_func+0x95/0x1d4 [ 61.464779][ T659] ? refcount_warn_saturate+0x169/0x1e0 [ 61.470338][ T659] qrtr_recvmsg+0x845/0x970 [ 61.474847][ T659] ? qrtr_node_enqueue+0x1240/0x1240 [ 61.480336][ T659] ? lock_is_held_type+0xbb/0xf0 [ 61.485281][ T659] ? bpf_lsm_socket_recvmsg+0x5/0x10 [ 61.490559][ T659] ? security_socket_recvmsg+0x8f/0xc0 [ 61.496014][ T659] ? qrtr_node_enqueue+0x1240/0x1240 [ 61.501309][ T659] kernel_recvmsg+0x110/0x160 [ 61.505983][ T659] qrtr_ns_worker+0x15a/0x153b [ 61.510759][ T659] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 61.516727][ T659] ? ctrl_cmd_del_client+0x730/0x730 [ 61.522032][ T659] ? lock_acquire+0x1f3/0xae0 [ 61.526701][ T659] ? process_one_work+0x85f/0x1670 [ 61.531910][ T659] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.537100][ T659] ? lock_is_held_type+0xbb/0xf0 [ 61.542029][ T659] process_one_work+0x94c/0x1670 [ 61.547040][ T659] ? lock_release+0x8f0/0x8f0 [ 61.551717][ T659] ? pwq_dec_nr_in_flight+0x320/0x320 [ 61.557093][ T659] ? rwlock_bug.part.0+0x90/0x90 [ 61.562028][ T659] ? lockdep_hardirqs_off+0x96/0xd0 [ 61.567478][ T659] worker_thread+0x64c/0x1120 [ 61.572150][ T659] ? __kthread_parkme+0x13f/0x1e0 [ 61.577181][ T659] ? process_one_work+0x1670/0x1670 [ 61.582370][ T659] kthread+0x3b5/0x4a0 [ 61.586437][ T659] ? __kthread_bind_mask+0xc0/0xc0 [ 61.591546][ T659] ret_from_fork+0x1f/0x30 [ 62.670805][ T659] Shutting down cpus with NMI [ 62.676762][ T659] Kernel Offset: disabled [ 62.681165][ T659] Rebooting in 86400 seconds..