Warning: Permanently added '10.128.0.69' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 71.984426][ T8470] IPVS: ftp: loaded support on port[0] = 21 [ 72.049192][ T8474] ================================================================== [ 72.057500][ T8474] BUG: KASAN: null-ptr-deref in amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.066053][ T8474] Write of size 8 at addr 0000000000000030 by task kworker/u5:1/8474 [ 72.074134][ T8474] [ 72.076465][ T8474] CPU: 0 PID: 8474 Comm: kworker/u5:1 Not tainted 5.11.0-rc2-syzkaller #0 [ 72.085674][ T8474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.095770][ T8474] Workqueue: hci0 hci_rx_work [ 72.100461][ T8474] Call Trace: [ 72.103728][ T8474] dump_stack+0x107/0x163 [ 72.108065][ T8474] ? amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.114217][ T8474] ? amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.120375][ T8474] kasan_report.cold+0x5f/0xd5 [ 72.125146][ T8474] ? amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.131302][ T8474] check_memory_region+0x13d/0x180 [ 72.136669][ T8474] amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.142645][ T8474] ? amp_read_loc_assoc+0x1a0/0x1a0 [ 72.147844][ T8474] ? hci_conn_hash_lookup_handle+0x146/0x2d0 [ 72.153820][ T8474] ? lock_downgrade+0x6d0/0x6d0 [ 72.158678][ T8474] ? __mutex_unlock_slowpath+0xe2/0x610 [ 72.164231][ T8474] ? wait_for_completion_io+0x260/0x260 [ 72.169772][ T8474] ? hci_conn_hash_lookup_handle+0x1ad/0x2d0 [ 72.175750][ T8474] hci_event_packet+0xed9/0x7d60 [ 72.180686][ T8474] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.186661][ T8474] ? lock_chain_count+0x20/0x20 [ 72.191546][ T8474] ? hci_cmd_complete_evt+0xb9d0/0xb9d0 [ 72.197107][ T8474] ? find_held_lock+0x2d/0x110 [ 72.201876][ T8474] ? skb_dequeue+0x125/0x180 [ 72.206493][ T8474] ? mark_held_locks+0x9f/0xe0 [ 72.211284][ T8474] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 72.217095][ T8474] ? lockdep_hardirqs_on+0x79/0x100 [ 72.222301][ T8474] hci_rx_work+0x511/0xd30 [ 72.226737][ T8474] process_one_work+0x98d/0x15f0 [ 72.231684][ T8474] ? pwq_dec_nr_in_flight+0x320/0x320 [ 72.237119][ T8474] ? rwlock_bug.part.0+0x90/0x90 [ 72.242058][ T8474] ? _raw_spin_lock_irq+0x41/0x50 [ 72.247081][ T8474] worker_thread+0x64c/0x1120 [ 72.251764][ T8474] ? process_one_work+0x15f0/0x15f0 [ 72.256957][ T8474] kthread+0x3b1/0x4a0 [ 72.261034][ T8474] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 72.266925][ T8474] ret_from_fork+0x1f/0x30 [ 72.271354][ T8474] ================================================================== [ 72.279399][ T8474] Disabling lock debugging due to kernel taint [ 72.287066][ T8474] Kernel panic - not syncing: panic_on_warn set ... [ 72.293661][ T8474] CPU: 0 PID: 8474 Comm: kworker/u5:1 Tainted: G B 5.11.0-rc2-syzkaller #0 [ 72.303642][ T8474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.313698][ T8474] Workqueue: hci0 hci_rx_work [ 72.318364][ T8474] Call Trace: [ 72.321622][ T8474] dump_stack+0x107/0x163 [ 72.325933][ T8474] ? amp_read_loc_assoc_final_data+0x70/0x1f0 [ 72.331980][ T8474] panic+0x306/0x73d [ 72.335903][ T8474] ? __warn_printk+0xf3/0xf3 [ 72.340474][ T8474] ? preempt_schedule_common+0x59/0xc0 [ 72.345949][ T8474] ? amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.352085][ T8474] ? preempt_schedule_thunk+0x16/0x18 [ 72.357437][ T8474] ? trace_hardirqs_on+0x38/0x1c0 [ 72.362442][ T8474] ? trace_hardirqs_on+0x51/0x1c0 [ 72.367537][ T8474] ? amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.373695][ T8474] ? amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.379846][ T8474] end_report+0x58/0x5e [ 72.384012][ T8474] kasan_report.cold+0x67/0xd5 [ 72.388767][ T8474] ? amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.394908][ T8474] check_memory_region+0x13d/0x180 [ 72.400006][ T8474] amp_read_loc_assoc_final_data+0x117/0x1f0 [ 72.406001][ T8474] ? amp_read_loc_assoc+0x1a0/0x1a0 [ 72.411183][ T8474] ? hci_conn_hash_lookup_handle+0x146/0x2d0 [ 72.417157][ T8474] ? lock_downgrade+0x6d0/0x6d0 [ 72.421990][ T8474] ? __mutex_unlock_slowpath+0xe2/0x610 [ 72.427517][ T8474] ? wait_for_completion_io+0x260/0x260 [ 72.433051][ T8474] ? hci_conn_hash_lookup_handle+0x1ad/0x2d0 [ 72.439015][ T8474] hci_event_packet+0xed9/0x7d60 [ 72.443947][ T8474] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.449909][ T8474] ? lock_chain_count+0x20/0x20 [ 72.454746][ T8474] ? hci_cmd_complete_evt+0xb9d0/0xb9d0 [ 72.460298][ T8474] ? find_held_lock+0x2d/0x110 [ 72.465053][ T8474] ? skb_dequeue+0x125/0x180 [ 72.469638][ T8474] ? mark_held_locks+0x9f/0xe0 [ 72.474393][ T8474] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 72.480179][ T8474] ? lockdep_hardirqs_on+0x79/0x100 [ 72.485358][ T8474] hci_rx_work+0x511/0xd30 [ 72.489759][ T8474] process_one_work+0x98d/0x15f0 [ 72.494679][ T8474] ? pwq_dec_nr_in_flight+0x320/0x320 [ 72.500031][ T8474] ? rwlock_bug.part.0+0x90/0x90 [ 72.504950][ T8474] ? _raw_spin_lock_irq+0x41/0x50 [ 72.509957][ T8474] worker_thread+0x64c/0x1120 [ 72.514617][ T8474] ? process_one_work+0x15f0/0x15f0 [ 72.519811][ T8474] kthread+0x3b1/0x4a0 [ 72.523874][ T8474] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 72.529751][ T8474] ret_from_fork+0x1f/0x30 [ 72.534685][ T8474] Kernel Offset: disabled [ 72.539000][ T8474] Rebooting in 86400 seconds..