[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.125' (ECDSA) to the list of known hosts. syzkaller login: [ 531.334274][ T6872] IPVS: ftp: loaded support on port[0] = 21 [ 531.431176][ T6872] chnl_net:caif_netlink_parms(): no params data found [ 531.485481][ T6872] bridge0: port 1(bridge_slave_0) entered blocking state [ 531.493677][ T6872] bridge0: port 1(bridge_slave_0) entered disabled state [ 531.502607][ T6872] device bridge_slave_0 entered promiscuous mode [ 531.512160][ T6872] bridge0: port 2(bridge_slave_1) entered blocking state [ 531.520230][ T6872] bridge0: port 2(bridge_slave_1) entered disabled state [ 531.527807][ T6872] device bridge_slave_1 entered promiscuous mode [ 531.549022][ T6872] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 531.560791][ T6872] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 531.582695][ T6872] team0: Port device team_slave_0 added [ 531.591335][ T6872] team0: Port device team_slave_1 added [ 531.610077][ T6872] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 531.617004][ T6872] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 531.643739][ T6872] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 531.656325][ T6872] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 531.663700][ T6872] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 531.690033][ T6872] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 531.716871][ T6872] device hsr_slave_0 entered promiscuous mode [ 531.723569][ T6872] device hsr_slave_1 entered promiscuous mode [ 531.820831][ T6872] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 531.835707][ T6872] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 531.844521][ T6872] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 531.857804][ T6872] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 531.883559][ T6872] bridge0: port 2(bridge_slave_1) entered blocking state [ 531.890737][ T6872] bridge0: port 2(bridge_slave_1) entered forwarding state [ 531.898295][ T6872] bridge0: port 1(bridge_slave_0) entered blocking state [ 531.905413][ T6872] bridge0: port 1(bridge_slave_0) entered forwarding state [ 531.951511][ T6872] 8021q: adding VLAN 0 to HW filter on device bond0 [ 531.964941][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 531.975827][ T23] bridge0: port 1(bridge_slave_0) entered disabled state [ 531.984450][ T23] bridge0: port 2(bridge_slave_1) entered disabled state [ 531.993029][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 532.006171][ T6872] 8021q: adding VLAN 0 to HW filter on device team0 [ 532.018943][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 532.027248][ T6864] bridge0: port 1(bridge_slave_0) entered blocking state [ 532.034450][ T6864] bridge0: port 1(bridge_slave_0) entered forwarding state [ 532.061656][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 532.070388][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 532.077510][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 532.086016][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 532.094598][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 532.103209][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 532.112146][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 532.125540][ T6872] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 532.136859][ T6872] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 532.146106][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 532.168535][ T6872] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 532.176189][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 532.185231][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 532.210694][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 532.226292][ T6872] device veth0_vlan entered promiscuous mode [ 532.233427][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 532.247388][ T6872] device veth1_vlan entered promiscuous mode [ 532.255267][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 532.263578][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 532.272141][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 532.295339][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 532.303981][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 532.315127][ T6872] device veth0_macvtap entered promiscuous mode [ 532.325023][ T6872] device veth1_macvtap entered promiscuous mode [ 532.342771][ T6872] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 532.351297][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 532.361756][ T6864] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 532.373878][ T6872] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 532.381833][ T7080] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 532.394093][ T6872] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 532.403362][ T6872] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 532.412497][ T6872] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 532.421543][ T6872] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 532.465182][ T7083] ------------[ cut here ]------------ [ 532.470785][ T7083] WARNING: CPU: 0 PID: 7083 at kernel/entry/common.c:364 irqentry_exit+0x47/0x90 [ 532.479865][ T7083] Kernel panic - not syncing: panic_on_warn set ... [ 532.486426][ T7083] CPU: 0 PID: 7083 Comm: syz-executor726 Not tainted 5.9.0-rc8-syzkaller #0 [ 532.495066][ T7083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 532.505132][ T7083] Call Trace: [ 532.508464][ T7083] dump_stack+0x198/0x1fd [ 532.512843][ T7083] panic+0x382/0x7fb [ 532.516710][ T7083] ? __warn_printk+0xf3/0xf3 [ 532.521380][ T7083] ? printk+0xba/0xed [ 532.525333][ T7083] ? log_store.cold+0x16/0x16 [ 532.530026][ T7083] ? no_context+0x120/0x9f0 [ 532.534502][ T7083] ? __warn.cold+0x5/0x4b [ 532.538804][ T7083] ? __warn+0xd6/0x1f2 [ 532.542845][ T7083] ? irqentry_exit+0x47/0x90 [ 532.547407][ T7083] __warn.cold+0x20/0x4b [ 532.551623][ T7083] ? irqentry_exit+0x47/0x90 [ 532.556186][ T7083] report_bug+0x1bd/0x210 [ 532.560489][ T7083] handle_bug+0x38/0x90 [ 532.564614][ T7083] exc_invalid_op+0x14/0x40 [ 532.569143][ T7083] asm_exc_invalid_op+0x12/0x20 [ 532.573997][ T7083] RIP: 0010:irqentry_exit+0x47/0x90 [ 532.579166][ T7083] Code: 27 f6 87 91 00 00 00 02 74 18 40 84 f6 75 3b 65 8b 05 ed 43 db 77 a9 ff ff ff 7f 74 11 e9 51 59 55 f9 40 84 f6 75 3f c3 eb 89 <0f> 0b eb ca e8 10 fd 3c f9 65 48 8b 04 25 c0 fe 01 00 48 8b 00 a8 [ 532.598764][ T7083] RSP: 0018:ffffc90006126d10 EFLAGS: 00010002 [ 532.604811][ T7083] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8135485d [ 532.612755][ T7083] RDX: ffff888092a1a380 RSI: 0000000000000000 RDI: ffffc90006126d48 [ 532.620701][ T7083] RBP: ffffc90006126d48 R08: 0000000000000000 R09: 0000000000000000 [ 532.628641][ T7083] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 532.636582][ T7083] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 532.644539][ T7083] ? no_context+0x1ad/0x9f0 [ 532.649017][ T7083] exc_page_fault+0xd9/0x190 [ 532.653580][ T7083] asm_exc_page_fault+0x1e/0x30 [ 532.658402][ T7083] RIP: 0010:__softirqentry_text_end+0x39/0x55 [ 532.664440][ T7083] Code: df 03 e0 ff b8 f2 ff ff ff 31 d2 e9 db 64 c6 ff 41 bf f2 ff ff ff 31 c0 e9 ab 3c a1 f8 41 bf f2 ff ff ff 31 ed e9 c6 3c a1 f8 <41> be f2 ff ff ff 48 31 c0 e9 d3 3f a1 f8 41 be f2 ff ff ff 48 31 [ 532.684022][ T7083] RSP: 0018:ffffc90006126df0 EFLAGS: 00010046 [ 532.690060][ T7083] RAX: 0000000000000000 RBX: ffffc90006126eb0 RCX: ffffffff81014b22 [ 532.698003][ T7083] RDX: ffff888092a1a380 RSI: ffffffff81014b30 RDI: 0000000000000006 [ 532.705943][ T7083] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888092a1a387 [ 532.713898][ T7083] R10: 0000000000000000 R11: 0000000000000001 R12: ffffc90006126ebc [ 532.721839][ T7083] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888092a1a380 [ 532.729890][ T7083] ? perf_callchain_user+0x7f2/0xba0 [ 532.735144][ T7083] ? perf_callchain_user+0x800/0xba0 [ 532.740431][ T7083] get_perf_callchain+0x324/0x640 [ 532.745454][ T7083] ? put_callchain_entry+0xa0/0xa0 [ 532.750559][ T7083] ? mark_lock+0x82/0x1660 [ 532.754968][ T7083] ? search_extable+0x7f/0xb0 [ 532.759637][ T7083] perf_callchain+0x165/0x1c0 [ 532.764289][ T7083] perf_prepare_sample+0x8fd/0x1d40 [ 532.769476][ T7083] ? perf_callchain+0x1c0/0x1c0 [ 532.774296][ T7083] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 532.780257][ T7083] ? pgtable_bad+0x90/0x90 [ 532.784645][ T7083] perf_event_output_forward+0xf3/0x270 [ 532.790159][ T7083] ? perf_prepare_sample+0x1d40/0x1d40 [ 532.795607][ T7083] ? find_held_lock+0x2d/0x110 [ 532.800352][ T7083] ? perf_output_begin_forward+0x7d7/0xba0 [ 532.806130][ T7083] ? lock_downgrade+0x830/0x830 [ 532.810951][ T7083] __perf_event_overflow+0x13c/0x370 [ 532.816207][ T7083] perf_swevent_event+0x347/0x550 [ 532.821227][ T7083] ? tracing_generic_entry_update+0x1ed/0x270 [ 532.827266][ T7083] perf_tp_event+0x2e4/0xb60 [ 532.831915][ T7083] ? perf_output_copy+0x230/0x230 [ 532.836910][ T7083] ? perf_event_mmap_output+0xa30/0xa30 [ 532.842427][ T7083] ? put_callchain_entry+0xa0/0xa0 [ 532.847531][ T7083] ? startup_64+0x2/0x30 [ 532.851750][ T7083] ? lock_is_held_type+0xbb/0xf0 [ 532.856669][ T7083] ? find_held_lock+0x2d/0x110 [ 532.861530][ T7083] ? perf_event_output_forward+0x16a/0x270 [ 532.867307][ T7083] ? lock_downgrade+0x830/0x830 [ 532.872130][ T7083] ? perf_trace_run_bpf_submit+0x11c/0x210 [ 532.877905][ T7083] perf_trace_run_bpf_submit+0x11c/0x210 [ 532.883508][ T7083] perf_trace_lock_acquire+0x34c/0x550 [ 532.888937][ T7083] ? SOFTIRQ_verbose+0x10/0x10 [ 532.893673][ T7083] ? perf_swevent_event+0x347/0x550 [ 532.898852][ T7083] lock_acquire+0x37c/0xaf0 [ 532.903351][ T7083] ? __bpf_address_lookup+0x290/0x290 [ 532.908694][ T7083] ? lock_release+0x8f0/0x8f0 [ 532.913348][ T7083] ? arch_stack_walk+0x5e/0xf0 [ 532.918100][ T7083] ? unwind_next_frame+0xe3b/0x1f90 [ 532.923267][ T7083] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 532.929321][ T7083] is_bpf_text_address+0x36/0x160 [ 532.934326][ T7083] ? __bpf_address_lookup+0x290/0x290 [ 532.939703][ T7083] kernel_text_address+0xbd/0xf0 [ 532.944613][ T7083] __kernel_text_address+0x9/0x30 [ 532.949607][ T7083] unwind_get_return_address+0x51/0x90 [ 532.955062][ T7083] ? profile_setup.cold+0xc1/0xc1 [ 532.960056][ T7083] arch_stack_walk+0x97/0xf0 [ 532.964669][ T7083] stack_trace_save+0x8c/0xc0 [ 532.969317][ T7083] ? stack_trace_consume_entry+0x160/0x160 [ 532.975092][ T7083] save_trace+0x43/0xba0 [ 532.979303][ T7083] ? lock_repin_lock+0x460/0x460 [ 532.984322][ T7083] mark_lock+0x4a5/0x1660 [ 532.988623][ T7083] __lock_acquire+0x856/0x5780 [ 532.993360][ T7083] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 532.999309][ T7083] lock_acquire+0x1f3/0xaf0 [ 533.003780][ T7083] ? perf_event_release_kernel+0x25a/0xe00 [ 533.009555][ T7083] ? lock_release+0x8f0/0x8f0 [ 533.014202][ T7083] ? lock_is_held_type+0xbb/0xf0 [ 533.019123][ T7083] __mutex_lock+0x134/0x10e0 [ 533.023685][ T7083] ? perf_event_release_kernel+0x25a/0xe00 [ 533.029479][ T7083] ? perf_event_release_kernel+0x25a/0xe00 [ 533.035255][ T7083] ? lock_is_held_type+0xbb/0xf0 [ 533.040161][ T7083] ? mutex_lock_io_nested+0xf60/0xf60 [ 533.045509][ T7083] ? perf_event_release_kernel+0x216/0xe00 [ 533.051430][ T7083] ? lock_downgrade+0x830/0x830 [ 533.056362][ T7083] ? fsnotify+0x9be/0x1040 [ 533.060756][ T7083] perf_event_release_kernel+0x25a/0xe00 [ 533.066357][ T7083] ? fsnotify_first_mark+0x1f0/0x1f0 [ 533.071621][ T7083] ? __perf_event_exit_context+0x170/0x170 [ 533.077397][ T7083] ? lock_is_held_type+0xbb/0xf0 [ 533.082305][ T7083] perf_release+0x33/0x40 [ 533.086644][ T7083] __fput+0x285/0x920 [ 533.090608][ T7083] ? perf_event_release_kernel+0xe00/0xe00 [ 533.096471][ T7083] task_work_run+0xdd/0x190 [ 533.100944][ T7083] exit_to_user_mode_prepare+0x1e1/0x200 [ 533.106565][ T7083] syscall_exit_to_user_mode+0x7e/0x2e0 [ 533.112094][ T7083] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 533.117954][ T7083] RIP: 0033:0x404880 [ 533.121907][ T7083] Code: 01 f0 ff ff 0f 83 c0 0f 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 0d bf 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0f 00 00 c3 48 83 ec 08 e8 fa 04 00 00 [ 533.141567][ T7083] RSP: 002b:00007ffde49ee698 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 533.149947][ T7083] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000404880 [ 533.157890][ T7083] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 533.165832][ T7083] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000004 [ 533.173784][ T7083] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000000 [ 533.181746][ T7083] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 534.286882][ T7083] Shutting down cpus with NMI [ 534.292951][ T7083] Kernel Offset: disabled [ 534.297398][ T7083] Rebooting in 86400 seconds..