Warning: Permanently added '10.128.1.23' (ECDSA) to the list of known hosts. syzkaller login: [ 34.724197] audit: type=1400 audit(1598151382.905:8): avc: denied { execmem } for pid=6360 comm="syz-executor116" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program [ 35.862423] IPVS: ftp: loaded support on port[0] = 21 [ 35.896796] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 [ 35.904794] IP: amp_read_loc_assoc_final_data+0xe6/0x190 [ 35.910214] PGD 0 P4D 0 [ 35.912858] Oops: 0002 [#1] PREEMPT SMP KASAN [ 35.917319] Modules linked in: [ 35.920491] CPU: 1 PID: 1201 Comm: kworker/u5:0 Not tainted 4.14.194-syzkaller #0 [ 35.928092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.937433] Workqueue: hci0 hci_rx_work [ 35.941383] task: ffff8880a78bc680 task.stack: ffff8880a7a28000 [ 35.947527] RIP: 0010:amp_read_loc_assoc_final_data+0xe6/0x190 [ 35.953468] RSP: 0018:ffff8880a7a2f9f8 EFLAGS: 00010246 [ 35.958806] RAX: 0000000000000000 RBX: 1ffff11014f45f3f RCX: 1ffff11014f179eb [ 35.966085] RDX: 1ffff11011c771ab RSI: ffff8880972c2b00 RDI: ffff88808e3b8d58 [ 35.973363] RBP: ffff8880972c2b00 R08: 0000000000000000 R09: 0000000000000002 [ 35.980605] R10: 0000000000000000 R11: ffff8880a78bc680 R12: ffff88808e3b89c0 [ 35.987850] R13: 0000000000000000 R14: ffff88808e3b89c0 R15: ffff88808e3b89c0 [ 35.995092] FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 36.003287] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.009140] CR2: 0000000000000030 CR3: 00000000a10e3000 CR4: 00000000001406e0 [ 36.016383] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.023625] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.030909] Call Trace: [ 36.033473] ? amp_read_loc_assoc+0x140/0x140 [ 36.037956] ? hci_chan_selected_evt+0x167/0x2f0 [ 36.042698] ? lock_acquire+0x170/0x3f0 [ 36.046668] ? lock_downgrade+0x740/0x740 [ 36.050791] hci_chan_selected_evt+0x1a3/0x2f0 [ 36.055350] hci_event_packet+0x23de/0x7d1d [ 36.059646] ? trace_hardirqs_on+0x10/0x10 [ 36.063864] ? hci_cmd_complete_evt+0x9590/0x9590 [ 36.068677] ? trace_hardirqs_on+0x10/0x10 [ 36.072895] ? trace_hardirqs_on+0x10/0x10 [ 36.077203] ? debug_object_deactivate+0x1da/0x2e0 [ 36.082110] ? trace_hardirqs_on+0x10/0x10 [ 36.086315] ? skb_dequeue+0x120/0x170 [ 36.090183] ? mark_held_locks+0xa6/0xf0 [ 36.094216] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 36.099288] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 36.104275] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 36.109347] hci_rx_work+0x3e6/0x970 [ 36.113035] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 36.118459] process_one_work+0x793/0x14a0 [ 36.122666] ? work_busy+0x320/0x320 [ 36.126347] ? worker_thread+0x158/0xff0 [ 36.130376] ? _raw_spin_unlock_irq+0x24/0x80 [ 36.134856] worker_thread+0x5cc/0xff0 [ 36.138715] ? rescuer_thread+0xc80/0xc80 [ 36.142838] kthread+0x30d/0x420 [ 36.146175] ? kthread_create_on_node+0xd0/0xd0 [ 36.150816] ret_from_fork+0x24/0x30 [ 36.154501] Code: 44 24 21 48 b8 00 00 00 00 00 fc ff df 0f b6 04 02 84 c0 74 08 3c 01 0f 8e 90 00 00 00 41 0f b7 84 24 98 03 00 00 66 89 44 24 23 41 80 4d 30 04 48 8d 6c 24 40 4c 89 e6 48 89 ef e8 94 8b fe [ 36.173557] RIP: amp_read_loc_assoc_final_data+0xe6/0x190 RSP: ffff8880a7a2f9f8 [ 36.180972] CR2: 0000000000000030 [ 36.184401] ---[ end trace fc5c815984ecb4be ]--- [ 36.189125] Kernel panic - not syncing: Fatal exception [ 36.195713] Kernel Offset: disabled [ 36.199332] Rebooting in 86400 seconds..