[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.223' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 644.677666] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 644.690357] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.698299] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 644.706625] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 644.740493] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.748963] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 644.782944] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.791416] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 644.831906] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.841324] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 644.857731] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.866821] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 644.879825] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.887900] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 644.900860] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.908102] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 644.920438] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program executing program [ 644.927684] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 644.940382] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.947648] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 644.961723] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.969041] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 644.981054] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 644.988238] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.000697] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.007968] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.020591] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program executing program [ 645.028086] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.040281] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.047525] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.059813] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.067205] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program executing program [ 645.080462] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.088756] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.101601] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.109484] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.119956] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program [ 645.128820] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.140663] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.147839] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.160276] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.167530] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program executing program [ 645.179915] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.187268] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.199689] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.207024] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.219745] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.226986] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 645.239421] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.246727] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.259913] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.267148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.281503] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program executing program [ 645.288968] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.302136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.310086] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.322796] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.330004] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 645.342566] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.351231] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.362386] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.370352] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.380742] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program executing program [ 645.388111] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.400991] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.408833] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.423160] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.432041] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program executing program [ 645.442631] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.449879] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.462142] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.470485] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.481561] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program [ 645.489891] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.500407] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.507953] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.520927] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.528667] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program executing program [ 645.542258] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.549557] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.561705] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.569571] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.582869] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program [ 645.590243] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.601991] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.609999] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.622182] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.629487] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program [ 645.642110] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.650515] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.661277] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.668634] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.682118] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program executing program [ 645.689734] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.702270] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.711201] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.725107] kasan: CONFIG_KASAN_INLINE enabled [ 645.730292] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 645.738299] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 645.740302] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 645.745089] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.163-syzkaller #0 [ 645.745095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 645.745113] RIP: 0010:ieee80211_subif_start_xmit+0x24b/0xef0 [ 645.745196] Code: 03 80 3c 02 00 0f 85 3c 0c 00 00 49 8b 9f 80 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 19 0c 00 00 0f b6 9b d8 01 00 00 31 [ 645.752567] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 645.762816] RSP: 0018:ffff8880ba107390 EFLAGS: 00010202 [ 645.762826] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87c2d40a [ 645.762831] RDX: 000000000000003b RSI: ffffffff87c2d49a RDI: 00000000000001d8 [ 645.762837] RBP: ffff8880a547d980 R08: 0000000000000000 R09: 0000000000000004 [ 645.762841] R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff89670cc0 [ 645.762847] R13: ffff8880abfc4542 R14: ffff8880ab5c06d0 R15: ffff8880ab5c0600 [ 645.762855] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 645.762861] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 645.762866] CR2: 0000000020000200 CR3: 0000000009e6d000 CR4: 00000000001406e0 [ 645.762875] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 645.762887] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 645.893776] Call Trace: [ 645.896361] [ 645.898692] ? mark_held_locks+0xf0/0xf0 [ 645.902792] ? __ieee80211_subif_start_xmit+0x970/0x970 [ 645.908326] ? __skb_gso_segment+0x720/0x720 [ 645.912746] ? validate_xmit_xfrm+0x3dc/0xe30 [ 645.917421] ? __lock_acquire+0x6de/0x3ff0 [ 645.921753] ? check_preemption_disabled+0x41/0x280 [ 645.927031] dev_hard_start_xmit+0x1a8/0x920 [ 645.931594] sch_direct_xmit+0x2d6/0xf50 [ 645.935765] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 645.941470] ? debug_object_active_state+0x254/0x330 [ 645.946580] ? qdisc_destroy+0x790/0x790 [ 645.950815] ? check_preemption_disabled+0x41/0x280 [ 645.955827] ? assoc_array_gc+0x11f0/0x1260 [ 645.960141] __qdisc_run+0x4d0/0x1640 [ 645.963939] __dev_queue_xmit+0x2102/0x2e00 [ 645.969470] ? ip6_finish_output2+0xde7/0x2290 [ 645.974578] ? __lock_acquire+0x6de/0x3ff0 [ 645.978979] ? netdev_pick_tx+0x2f0/0x2f0 [ 645.983389] ? ipv6_chk_mcast_addr+0x129/0x6c0 [ 645.987986] ? mark_held_locks+0xa6/0xf0 [ 645.992572] ? ip6_finish_output2+0x16da/0x2290 [ 645.997482] ip6_finish_output2+0xde7/0x2290 [ 646.002139] ? ip6_forward_finish+0x4b0/0x4b0 [ 646.006836] ? lock_downgrade+0x720/0x720 [ 646.010995] ? check_preemption_disabled+0x41/0x280 [ 646.016012] ? check_preemption_disabled+0x41/0x280 [ 646.021189] ip6_finish_output+0x7eb/0xc10 [ 646.025541] ip6_output+0x205/0x770 [ 646.029154] ? ip6_finish_output+0xc10/0xc10 [ 646.033613] ? ip6_fragment+0x32a0/0x32a0 [ 646.037796] ? check_preemption_disabled+0x41/0x280 [ 646.042805] mld_sendpack+0x674/0x1060 [ 646.046696] ? add_grhead+0x223/0x330 [ 646.050483] ? sf_setstate+0x7f0/0x7f0 [ 646.054514] ? icmpv6_rcv.cold+0x83/0x83 [ 646.058589] ? mld_ifc_timer_expire+0x604/0xdf0 [ 646.063263] ? mark_held_locks+0xa6/0xf0 [ 646.067313] ? __local_bh_enable_ip+0x159/0x270 [ 646.072063] mld_ifc_timer_expire+0x616/0xdf0 [ 646.076558] call_timer_fn+0x177/0x700 [ 646.080430] ? ipv6_sock_mc_join+0x30/0x30 [ 646.084649] ? process_timeout+0x40/0x40 [ 646.088695] ? _raw_spin_unlock_irq+0x24/0x80 [ 646.093318] ? ipv6_sock_mc_join+0x30/0x30 [ 646.097540] ? ipv6_sock_mc_join+0x30/0x30 [ 646.101761] expire_timers+0x243/0x4e0 [ 646.105639] run_timer_softirq+0x21c/0x670 [ 646.109856] ? expire_timers+0x4e0/0x4e0 [ 646.114263] ? kvm_sched_clock_read+0x14/0x40 [ 646.118745] ? check_preemption_disabled+0x41/0x280 [ 646.125025] __do_softirq+0x26c/0x9a0 [ 646.128815] irq_exit+0x215/0x260 [ 646.132253] smp_apic_timer_interrupt+0x136/0x550 [ 646.138572] apic_timer_interrupt+0xf/0x20 [ 646.142799] [ 646.145035] RIP: 0010:native_safe_halt+0xe/0x10 [ 646.149774] Code: 48 89 df e8 c4 2f 85 f9 e9 2e ff ff ff 48 89 df e8 b7 2f 85 f9 eb 82 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 74 bb 51 00 fb f4 90 e9 07 00 00 00 0f 00 2d 64 bb 51 00 f4 c3 90 90 41 56 41 55 [ 646.168942] RSP: 0018:ffff8880b5aafd40 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 646.176688] RAX: 1ffffffff13e3034 RBX: dffffc0000000000 RCX: 0000000000000000 [ 646.183945] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880b5a9ac44 [ 646.191216] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 646.198475] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89f18190 [ 646.205880] R13: 1ffff11016b55fb2 R14: 0000000000000000 R15: 0000000000000000 [ 646.213365] default_idle+0x49/0x310 [ 646.217074] do_idle+0x2ec/0x4b0 [ 646.220428] ? arch_cpu_idle_exit+0x70/0x70 [ 646.224733] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 646.229840] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 646.234508] cpu_startup_entry+0xc5/0xe0 [ 646.238573] ? cpu_in_idle+0x20/0x20 [ 646.242277] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 646.247545] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 646.252136] start_secondary+0x435/0x5c0 [ 646.256277] ? set_cpu_sibling_map+0x17b0/0x17b0 [ 646.261135] secondary_startup_64+0xa4/0xb0 [ 646.265721] Modules linked in: [ 646.269131] ---[ end trace aee20759daf7c270 ]--- [ 646.273928] RIP: 0010:ieee80211_subif_start_xmit+0x24b/0xef0 [ 646.280437] Code: 03 80 3c 02 00 0f 85 3c 0c 00 00 49 8b 9f 80 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 19 0c 00 00 0f b6 9b d8 01 00 00 31 [ 646.303990] RSP: 0018:ffff8880ba107390 EFLAGS: 00010202 [ 646.309526] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87c2d40a [ 646.316931] RDX: 000000000000003b RSI: ffffffff87c2d49a RDI: 00000000000001d8 [ 646.324648] RBP: ffff8880a547d980 R08: 0000000000000000 R09: 0000000000000004 [ 646.333222] R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff89670cc0 [ 646.340577] R13: ffff8880abfc4542 R14: ffff8880ab5c06d0 R15: ffff8880ab5c0600 executing program [ 646.348094] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 646.356843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 646.362722] CR2: 0000000020000200 CR3: 0000000009e6d000 CR4: 00000000001406e0 [ 646.370282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 646.377736] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 646.385252] Kernel panic - not syncing: Fatal exception in interrupt [ 646.392668] Kernel Offset: disabled [ 646.396283] Rebooting in 86400 seconds..