[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.62' (ECDSA) to the list of known hosts. syzkaller login: [ 40.358833] audit: type=1400 audit(1596169927.206:8): avc: denied { execmem } for pid=6477 comm="syz-executor286" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 40.373073] IPVS: ftp: loaded support on port[0] = 21 executing program [ 41.508554] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 [ 41.516570] PGD 0 P4D 0 [ 41.519251] Oops: 0002 [#1] PREEMPT SMP KASAN [ 41.523749] CPU: 0 PID: 6505 Comm: kworker/u5:2 Not tainted 4.19.135-syzkaller #0 [ 41.531366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.540734] Workqueue: hci0 hci_rx_work [ 41.544744] RIP: 0010:amp_read_loc_assoc_final_data+0x102/0x1d0 [ 41.552031] Code: fc ff df 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 ae 00 00 00 41 0f b7 84 24 9c 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 a8 59 fe ff [ 41.571044] RSP: 0018:ffff888088f27980 EFLAGS: 00010246 [ 41.576426] RAX: 0000000000000000 RBX: 1ffff110111e4f30 RCX: 1ffff110148421ab [ 41.583708] RDX: 0000000000000000 RSI: ffffffff8687a34e RDI: ffff888084fa54dc [ 41.591778] RBP: ffff888088f50140 R08: 0000000000000000 R09: 0000000000000002 [ 41.599070] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888084fa5140 [ 41.606352] R13: 0000000000000000 R14: ffff888084fa6080 R15: ffff888084fa5140 [ 41.613631] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 41.621865] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.627765] CR2: 0000000000000030 CR3: 000000008e98f000 CR4: 00000000001406f0 [ 41.635043] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.642323] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.649599] Call Trace: [ 41.652213] ? amp_read_loc_assoc+0x180/0x180 [ 41.656737] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 41.661876] ? hci_chan_selected_evt+0x1a4/0x360 [ 41.666646] ? lock_downgrade+0x720/0x720 [ 41.670822] ? lock_acquire+0x170/0x3c0 [ 41.674827] ? hci_chan_selected_evt+0x72/0x360 [ 41.679527] ? check_preemption_disabled+0x41/0x280 [ 41.684645] hci_chan_selected_evt+0x1e0/0x360 [ 41.689244] hci_event_packet+0x185a/0x858f [ 41.693584] ? mark_held_locks+0xf0/0xf0 [ 41.697658] ? hci_cmd_complete_evt+0xb5e0/0xb5e0 [ 41.702697] ? __update_load_avg_se+0x5e0/0xa00 [ 41.707403] ? debug_object_deactivate+0x1f9/0x2e0 [ 41.712359] ? mark_held_locks+0xa6/0xf0 [ 41.716435] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 41.721554] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.726172] hci_rx_work+0x46b/0xa90 [ 41.729911] process_one_work+0x864/0x1570 [ 41.734164] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 41.738868] worker_thread+0x64c/0x1130 [ 41.742870] ? __kthread_parkme+0xfd/0x1b0 [ 41.747118] ? process_one_work+0x1570/0x1570 [ 41.751630] kthread+0x30b/0x410 [ 41.755013] ? kthread_park+0x180/0x180 [ 41.759016] ret_from_fork+0x24/0x30 [ 41.762733] Modules linked in: [ 41.765936] CR2: 0000000000000030 [ 41.769398] ---[ end trace 02e159b07500cc69 ]--- [ 41.774191] RIP: 0010:amp_read_loc_assoc_final_data+0x102/0x1d0 [ 41.780262] Code: fc ff df 0f b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 ae 00 00 00 41 0f b7 84 24 9c 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 a8 59 fe ff [ 41.799166] RSP: 0018:ffff888088f27980 EFLAGS: 00010246 [ 41.804540] RAX: 0000000000000000 RBX: 1ffff110111e4f30 RCX: 1ffff110148421ab [ 41.811815] RDX: 0000000000000000 RSI: ffffffff8687a34e RDI: ffff888084fa54dc [ 41.819092] RBP: ffff888088f50140 R08: 0000000000000000 R09: 0000000000000002 [ 41.826368] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888084fa5140 [ 41.833640] R13: 0000000000000000 R14: ffff888084fa6080 R15: ffff888084fa5140 [ 41.841008] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 41.849256] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.855150] CR2: 0000000000000030 CR3: 000000008e98f000 CR4: 00000000001406f0 [ 41.862432] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.869812] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.877251] Kernel panic - not syncing: Fatal exception [ 41.883687] Kernel Offset: disabled [ 41.887321] Rebooting in 86400 seconds..