Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. syzkaller login: [ 33.879355] audit: type=1400 audit(1596374017.914:8): avc: denied { execmem } for pid=6368 comm="syz-executor338" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 34.138265] IPVS: ftp: loaded support on port[0] = 21 executing program [ 36.019711] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 [ 36.027713] IP: amp_read_loc_assoc_final_data+0xe6/0x190 [ 36.033140] PGD 0 P4D 0 [ 36.035789] Oops: 0002 [#1] PREEMPT SMP KASAN [ 36.040254] Modules linked in: [ 36.043423] CPU: 1 PID: 1201 Comm: kworker/u5:0 Not tainted 4.14.191-syzkaller #0 [ 36.051014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.060357] Workqueue: hci0 hci_rx_work [ 36.064484] task: ffff8880a7a3a680 task.stack: ffff8880a7a48000 [ 36.070518] RIP: 0010:amp_read_loc_assoc_final_data+0xe6/0x190 [ 36.076460] RSP: 0018:ffff8880a7a4f9f8 EFLAGS: 00010246 [ 36.081798] RAX: 0000000000000000 RBX: 1ffff11014f49f3f RCX: 1ffff11014f475eb [ 36.089042] RDX: 1ffff11012f73b83 RSI: ffff88809f8a44c0 RDI: ffff888097b9dc18 [ 36.096287] RBP: ffff88809f8a44c0 R08: 0000000000000000 R09: 0000000000000002 [ 36.103532] R10: 0000000000000000 R11: ffff8880a7a3a680 R12: ffff888097b9d880 [ 36.110775] R13: 0000000000000000 R14: ffff888097b9d880 R15: ffff88808a163ac0 [ 36.118029] FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 36.126229] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.132097] CR2: 0000000000000030 CR3: 000000009038c000 CR4: 00000000001406e0 [ 36.140190] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.147433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.154677] Call Trace: [ 36.157329] ? amp_read_loc_assoc+0x140/0x140 [ 36.161801] ? skb_release_data+0x5f6/0x820 [ 36.166097] ? hci_chan_selected_evt+0x167/0x2f0 [ 36.170827] ? lock_acquire+0x170/0x3f0 [ 36.174785] ? lock_downgrade+0x740/0x740 [ 36.179171] hci_chan_selected_evt+0x1a3/0x2f0 [ 36.183728] hci_event_packet+0x17d8/0x7c7a [ 36.188024] ? trace_hardirqs_on+0x10/0x10 [ 36.192361] ? hci_cmd_complete_evt+0x9590/0x9590 [ 36.197200] ? trace_hardirqs_on+0x10/0x10 [ 36.201419] ? debug_object_deactivate+0x1da/0x2e0 [ 36.206341] ? skb_dequeue+0x120/0x170 [ 36.210380] ? mark_held_locks+0xa6/0xf0 [ 36.214418] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 36.219496] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 36.224488] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 36.229567] hci_rx_work+0x3e6/0x970 [ 36.233270] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 36.238702] process_one_work+0x793/0x14a0 [ 36.242915] ? work_busy+0x320/0x320 [ 36.246603] ? worker_thread+0x158/0xff0 [ 36.250637] ? _raw_spin_unlock_irq+0x24/0x80 [ 36.255292] worker_thread+0x5cc/0xff0 [ 36.259164] ? rescuer_thread+0xc80/0xc80 [ 36.263287] kthread+0x30d/0x420 [ 36.266626] ? kthread_create_on_node+0xd0/0xd0 [ 36.271270] ret_from_fork+0x24/0x30 [ 36.274965] 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 [ 36.294063] RIP: amp_read_loc_assoc_final_data+0xe6/0x190 RSP: ffff8880a7a4f9f8 [ 36.301480] CR2: 0000000000000030 [ 36.304911] ---[ end trace 20d85046ccfbee5e ]--- [ 36.309637] Kernel panic - not syncing: Fatal exception [ 36.316100] Kernel Offset: disabled [ 36.319712] Rebooting in 86400 seconds..