[ 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 '10.128.0.42' (ECDSA) to the list of known hosts. syzkaller login: [ 71.241372][ T8488] IPVS: ftp: loaded support on port[0] = 21 [ 71.338812][ T8488] chnl_net:caif_netlink_parms(): no params data found [ 71.394147][ T8488] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.401803][ T8488] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.409609][ T8488] device bridge_slave_0 entered promiscuous mode [ 71.419631][ T8488] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.427984][ T8488] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.436035][ T8488] device bridge_slave_1 entered promiscuous mode [ 71.456610][ T8488] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.467851][ T8488] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.493114][ T8488] team0: Port device team_slave_0 added [ 71.500489][ T8488] team0: Port device team_slave_1 added [ 71.518358][ T8488] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.525341][ T8488] 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. [ 71.551298][ T8488] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.564393][ T8488] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.571435][ T8488] 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. [ 71.598102][ T8488] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.626913][ T8488] device hsr_slave_0 entered promiscuous mode [ 71.635056][ T8488] device hsr_slave_1 entered promiscuous mode [ 71.740565][ T8488] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.752342][ T8488] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.763278][ T8488] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.774232][ T8488] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.800041][ T8488] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.807402][ T8488] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.815257][ T8488] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.822407][ T8488] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.870946][ T8488] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.885909][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.896585][ T3007] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.905927][ T3007] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.914386][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.928326][ T8488] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.941459][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.949885][ T3815] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.957167][ T3815] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.983871][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.993981][ T3815] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.001028][ T3815] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.010471][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.019684][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.030472][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.046925][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.055292][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.067659][ T8488] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.087261][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.096619][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.109908][ T8488] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.132244][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.153204][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.163127][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.170800][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.183392][ T8488] device veth0_vlan entered promiscuous mode [ 72.196838][ T8488] device veth1_vlan entered promiscuous mode [ 72.218413][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.228088][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.236597][ T3815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.248657][ T8488] device veth0_macvtap entered promiscuous mode [ 72.260852][ T8488] device veth1_macvtap entered promiscuous mode [ 72.280006][ T8488] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.287731][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.297828][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.310151][ T8488] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.319063][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.328265][ T3007] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 72.342894][ T8488] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.351862][ T8488] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.360544][ T8488] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.371663][ T8488] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program executing program executing program executing program [ 73.419393][ C0] ------------[ cut here ]------------ [ 73.425071][ C0] WARNING: CPU: 0 PID: 0 at net/can/isotp.c:835 isotp_tx_timer_handler+0x65f/0xba0 [ 73.434461][ C0] Modules linked in: [ 73.438374][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-syzkaller #0 [ 73.446097][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.456235][ C0] RIP: 0010:isotp_tx_timer_handler+0x65f/0xba0 [ 73.462462][ C0] Code: c1 e8 03 83 e1 07 0f b6 04 28 38 c8 7f 08 84 c0 0f 85 b8 04 00 00 41 88 54 24 05 e9 07 fb ff ff 40 84 ed 75 21 e8 c1 64 7e f9 <0f> 0b 45 31 e4 e8 b7 64 7e f9 44 89 e0 48 83 c4 48 5b 5d 41 5c 41 [ 73.482332][ C0] RSP: 0018:ffffc90000007dc8 EFLAGS: 00010246 [ 73.488413][ C0] RAX: 0000000000000000 RBX: ffff88802a288518 RCX: 0000000000000100 [ 73.496473][ C0] RDX: ffffffff8b49bc00 RSI: ffffffff87f4e3ff RDI: 0000000000000003 [ 73.504562][ C0] RBP: 0000000000000000 R08: ffffffff8a7baf80 R09: ffffffff87f4ddfe [ 73.512853][ C0] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 [ 73.520846][ C0] R13: ffff8880b9c26c80 R14: ffff8880b9c26a00 R15: ffff88802a288000 [ 73.528881][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 73.537891][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.544545][ C0] CR2: 00007ffd91884b10 CR3: 000000001b5d4000 CR4: 00000000001506f0 [ 73.554370][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.562399][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.570377][ C0] Call Trace: [ 73.573787][ C0] [ 73.576698][ C0] ? isotp_bind+0xcb0/0xcb0 [ 73.581254][ C0] __hrtimer_run_queues+0x609/0xea0 [ 73.586491][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 73.592532][ C0] ? ktime_get_update_offsets_now+0x268/0x340 [ 73.598627][ C0] hrtimer_run_softirq+0x17b/0x360 [ 73.603803][ C0] __do_softirq+0x2bc/0xa77 [ 73.608328][ C0] asm_call_irq_on_stack+0xf/0x20 [ 73.613408][ C0] [ 73.616343][ C0] do_softirq_own_stack+0xaa/0xd0 [ 73.622749][ C0] __irq_exit_rcu+0x17f/0x200 [ 73.627442][ C0] irq_exit_rcu+0x5/0x20 [ 73.631754][ C0] sysvec_apic_timer_interrupt+0x4d/0x100 [ 73.637495][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 73.643556][ C0] RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 [ 73.649492][ C0] Code: ed 26 57 f8 84 db 75 ac e8 64 20 57 f8 e8 3f f6 5c f8 e9 0c 00 00 00 e8 55 20 57 f8 0f 00 2d ae 57 ae 00 e8 49 20 57 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 24 28 57 f8 48 85 db [ 73.669166][ C0] RSP: 0018:ffffffff8b407d60 EFLAGS: 00000293 [ 73.675409][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.683551][ C0] RDX: ffffffff8b49bc00 RSI: ffffffff891c2877 RDI: 0000000000000000 [ 73.691617][ C0] RBP: ffff888141653064 R08: 0000000000000001 R09: 0000000000000001 [ 73.699601][ C0] R10: ffffffff81791ed8 R11: 0000000000000000 R12: 0000000000000001 [ 73.707626][ C0] R13: ffff888141653000 R14: ffff888141653064 R15: ffff888017f65004 [ 73.715704][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 73.720746][ C0] ? acpi_idle_do_entry+0x1c7/0x250 [ 73.726006][ C0] acpi_idle_enter+0x361/0x500 [ 73.730826][ C0] cpuidle_enter_state+0x1b1/0xc80 [ 73.736014][ C0] cpuidle_enter+0x4a/0xa0 [ 73.740461][ C0] do_idle+0x3eb/0x590 [ 73.744613][ C0] ? arch_cpu_idle_exit+0x30/0x30 [ 73.749658][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 73.755966][ C0] cpu_startup_entry+0x14/0x20 [ 73.760752][ C0] start_kernel+0x496/0x4b7 [ 73.765318][ C0] secondary_startup_64_no_verify+0xb0/0xbb [ 73.771331][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 73.777922][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-syzkaller #0 [ 73.785547][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.795701][ C0] Call Trace: [ 73.798973][ C0] [ 73.801808][ C0] dump_stack+0x107/0x163 [ 73.806139][ C0] panic+0x343/0x77f [ 73.810031][ C0] ? __warn_printk+0xf3/0xf3 [ 73.814615][ C0] ? __warn.cold+0x1a/0x44 [ 73.819022][ C0] ? isotp_tx_timer_handler+0x65f/0xba0 [ 73.824564][ C0] __warn.cold+0x35/0x44 [ 73.828833][ C0] ? isotp_tx_timer_handler+0x65f/0xba0 [ 73.834370][ C0] report_bug+0x1bd/0x210 [ 73.838704][ C0] handle_bug+0x3c/0x60 [ 73.842874][ C0] exc_invalid_op+0x14/0x40 [ 73.847381][ C0] asm_exc_invalid_op+0x12/0x20 [ 73.852219][ C0] RIP: 0010:isotp_tx_timer_handler+0x65f/0xba0 [ 73.858380][ C0] Code: c1 e8 03 83 e1 07 0f b6 04 28 38 c8 7f 08 84 c0 0f 85 b8 04 00 00 41 88 54 24 05 e9 07 fb ff ff 40 84 ed 75 21 e8 c1 64 7e f9 <0f> 0b 45 31 e4 e8 b7 64 7e f9 44 89 e0 48 83 c4 48 5b 5d 41 5c 41 [ 73.877974][ C0] RSP: 0018:ffffc90000007dc8 EFLAGS: 00010246 [ 73.884059][ C0] RAX: 0000000000000000 RBX: ffff88802a288518 RCX: 0000000000000100 [ 73.892026][ C0] RDX: ffffffff8b49bc00 RSI: ffffffff87f4e3ff RDI: 0000000000000003 [ 73.900015][ C0] RBP: 0000000000000000 R08: ffffffff8a7baf80 R09: ffffffff87f4ddfe [ 73.907987][ C0] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 [ 73.915946][ C0] R13: ffff8880b9c26c80 R14: ffff8880b9c26a00 R15: ffff88802a288000 [ 73.923908][ C0] ? isotp_tx_timer_handler+0x5e/0xba0 [ 73.929377][ C0] ? isotp_tx_timer_handler+0x65f/0xba0 [ 73.934916][ C0] ? isotp_tx_timer_handler+0x65f/0xba0 [ 73.940921][ C0] ? isotp_bind+0xcb0/0xcb0 [ 73.945425][ C0] __hrtimer_run_queues+0x609/0xea0 [ 73.950628][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 73.956651][ C0] ? ktime_get_update_offsets_now+0x268/0x340 [ 73.962830][ C0] hrtimer_run_softirq+0x17b/0x360 [ 73.967955][ C0] __do_softirq+0x2bc/0xa77 [ 73.972457][ C0] asm_call_irq_on_stack+0xf/0x20 [ 73.977498][ C0] [ 73.980416][ C0] do_softirq_own_stack+0xaa/0xd0 [ 73.985430][ C0] __irq_exit_rcu+0x17f/0x200 [ 73.991316][ C0] irq_exit_rcu+0x5/0x20 [ 73.995548][ C0] sysvec_apic_timer_interrupt+0x4d/0x100 [ 74.001265][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 74.007259][ C0] RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 [ 74.013080][ C0] Code: ed 26 57 f8 84 db 75 ac e8 64 20 57 f8 e8 3f f6 5c f8 e9 0c 00 00 00 e8 55 20 57 f8 0f 00 2d ae 57 ae 00 e8 49 20 57 f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 24 28 57 f8 48 85 db [ 74.032695][ C0] RSP: 0018:ffffffff8b407d60 EFLAGS: 00000293 [ 74.038788][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 74.046758][ C0] RDX: ffffffff8b49bc00 RSI: ffffffff891c2877 RDI: 0000000000000000 [ 74.054717][ C0] RBP: ffff888141653064 R08: 0000000000000001 R09: 0000000000000001 [ 74.062674][ C0] R10: ffffffff81791ed8 R11: 0000000000000000 R12: 0000000000000001 [ 74.070630][ C0] R13: ffff888141653000 R14: ffff888141653064 R15: ffff888017f65004 [ 74.078590][ C0] ? trace_hardirqs_on+0x38/0x1c0 [ 74.083624][ C0] ? acpi_idle_do_entry+0x1c7/0x250 [ 74.088831][ C0] acpi_idle_enter+0x361/0x500 [ 74.093592][ C0] cpuidle_enter_state+0x1b1/0xc80 [ 74.098701][ C0] cpuidle_enter+0x4a/0xa0 [ 74.103127][ C0] do_idle+0x3eb/0x590 [ 74.107189][ C0] ? arch_cpu_idle_exit+0x30/0x30 [ 74.112206][ C0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 74.118444][ C0] cpu_startup_entry+0x14/0x20 [ 74.123199][ C0] start_kernel+0x496/0x4b7 [ 74.127695][ C0] secondary_startup_64_no_verify+0xb0/0xbb [ 74.133762][ C0] Kernel Offset: disabled [ 74.138158][ C0] Rebooting in 86400 seconds..