[ 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 '10.128.0.67' (ECDSA) to the list of known hosts. syzkaller login: [ 59.620147][ T6882] IPVS: ftp: loaded support on port[0] = 21 [ 59.703493][ T6882] chnl_net:caif_netlink_parms(): no params data found [ 59.752872][ T6882] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.760514][ T6882] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.768810][ T6882] device bridge_slave_0 entered promiscuous mode [ 59.777684][ T6882] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.788348][ T6882] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.797799][ T6882] device bridge_slave_1 entered promiscuous mode [ 59.817428][ T6882] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.828614][ T6882] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.850946][ T6882] team0: Port device team_slave_0 added [ 59.859725][ T6882] team0: Port device team_slave_1 added [ 59.879533][ T6882] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.887139][ T6882] 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. [ 59.915613][ T6882] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.928760][ T6882] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.940057][ T6882] 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. [ 59.970550][ T6882] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.047693][ T6882] device hsr_slave_0 entered promiscuous mode [ 60.104775][ T6882] device hsr_slave_1 entered promiscuous mode [ 60.216747][ T6882] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.268282][ T6882] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.316580][ T6882] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.356587][ T6882] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.431367][ T6882] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.439305][ T6882] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.447263][ T6882] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.454543][ T6882] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.499894][ T6882] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.512851][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.523635][ T3705] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.538229][ T3705] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.547576][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 60.559799][ T6882] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.572030][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.581124][ T2633] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.588472][ T2633] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.602593][ T2515] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.611060][ T2515] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.619231][ T2515] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.644796][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.653645][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.664317][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.672907][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.685668][ T6882] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.698257][ T6882] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.707515][ T2550] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.726511][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.735183][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.750324][ T6882] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.775620][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 60.787758][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.810734][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 60.825986][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.836060][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.845057][ T3705] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.856714][ T6882] device veth0_vlan entered promiscuous mode [ 60.869609][ T6882] device veth1_vlan entered promiscuous mode [ 60.889802][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.899273][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.907772][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.916379][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.927479][ T6882] device veth0_macvtap entered promiscuous mode [ 60.939486][ T6882] device veth1_macvtap entered promiscuous mode [ 60.957205][ T6882] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.965936][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.975808][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.983884][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.993257][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.004930][ T6882] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.014592][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.025866][ T2633] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 61.193817][ T6882] IPv6: ADDRCONF(NETDEV_CHANGE): rose0: link becomes ready [ 61.304599][ C1] general protection fault, probably for non-canonical address 0xdffffc000000006a: 0000 [#1] PREEMPT SMP KASAN [ 61.316940][ C1] KASAN: null-ptr-deref in range [0x0000000000000350-0x0000000000000357] [ 61.325325][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc4-syzkaller #0 [ 61.333510][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.343973][ C1] RIP: 0010:rose_send_frame+0x1dd/0x2f0 [ 61.349506][ C1] Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 50 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 50 03 00 00 e9 77 fe ff ff [ 61.369269][ C1] RSP: 0018:ffffc90000da8b18 EFLAGS: 00010206 [ 61.375310][ C1] RAX: dffffc0000000000 RBX: ffff888099201400 RCX: ffffffff870f3ac3 [ 61.383277][ C1] RDX: 000000000000006a RSI: ffffffff870f3c32 RDI: 0000000000000350 [ 61.391218][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880937f3ce3 [ 61.399163][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888099201400 [ 61.407117][ C1] R13: 0000000000000078 R14: ffff888093034440 R15: 0000000000000010 [ 61.415067][ C1] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 61.423965][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.430572][ C1] CR2: 00007f274b202000 CR3: 0000000093298000 CR4: 00000000001406e0 [ 61.438528][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.446474][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.454698][ C1] Call Trace: [ 61.457957][ C1] [ 61.460789][ C1] rose_transmit_clear_request+0x1d5/0x290 [ 61.466567][ C1] ? lockdep_hardirqs_on+0x6a/0xe0 [ 61.471652][ C1] rose_rx_call_request+0x4bd/0x1978 [ 61.476910][ C1] ? rose_release+0x4c0/0x4c0 [ 61.481563][ C1] rose_loopback_timer+0x15d/0x470 [ 61.486654][ C1] call_timer_fn+0x1ac/0x760 [ 61.491225][ C1] ? rose_link_rx_restart.cold+0xaa/0xaa [ 61.496826][ C1] ? add_timer_on+0x490/0x490 [ 61.501472][ C1] ? lock_downgrade+0x820/0x820 [ 61.506298][ C1] ? _raw_spin_unlock_irq+0x1f/0x80 [ 61.511656][ C1] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 61.517869][ C1] ? trace_hardirqs_on+0x5f/0x220 [ 61.523213][ C1] ? rose_link_rx_restart.cold+0xaa/0xaa [ 61.528818][ C1] __run_timers.part.0+0x54c/0xa20 [ 61.533902][ C1] ? call_timer_fn+0x760/0x760 [ 61.538641][ C1] ? clockevents_program_event+0x12b/0x350 [ 61.544423][ C1] ? kvm_sched_clock_read+0x14/0x40 [ 61.549620][ C1] ? sched_clock+0x2a/0x40 [ 61.554007][ C1] ? sched_clock_cpu+0x18/0x1b0 [ 61.558833][ C1] run_timer_softirq+0xae/0x1a0 [ 61.563656][ C1] __do_softirq+0x34c/0xa60 [ 61.568132][ C1] asm_call_on_stack+0xf/0x20 [ 61.572775][ C1] [ 61.575713][ C1] do_softirq_own_stack+0x111/0x170 [ 61.580971][ C1] irq_exit_rcu+0x229/0x270 [ 61.585462][ C1] sysvec_apic_timer_interrupt+0x54/0x120 [ 61.591249][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 61.597200][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 61.602540][ C1] Code: ff 4c 89 ef e8 63 d9 ca f9 e9 8e fe ff ff 48 89 df e8 56 d9 ca f9 eb 8a cc cc cc cc e9 07 00 00 00 0f 00 2d 14 73 60 00 fb f4 90 e9 07 00 00 00 0f 00 2d 04 73 60 00 f4 c3 cc cc 55 53 e8 b9 [ 61.622204][ C1] RSP: 0018:ffffc90000d3fc88 EFLAGS: 00000293 [ 61.628256][ C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 61.636212][ C1] RDX: ffff8880a9632340 RSI: ffffffff87e848a8 RDI: ffffffff87e8487e [ 61.644169][ C1] RBP: ffff88821b27e864 R08: 0000000000000000 R09: 0000000000000000 [ 61.652245][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88821b27e864 [ 61.660199][ C1] R13: 1ffff920001a7f9b R14: ffff88821b27e865 R15: 0000000000000001 [ 61.668159][ C1] ? acpi_safe_halt+0x88/0x110 [ 61.672896][ C1] ? acpi_safe_halt+0x5e/0x110 [ 61.677636][ C1] acpi_safe_halt+0x8d/0x110 [ 61.682199][ C1] acpi_idle_do_entry+0x15c/0x1b0 [ 61.687196][ C1] acpi_idle_enter+0x3f9/0xab0 [ 61.692189][ C1] ? acpi_idle_enter_bm+0x2d0/0x2d0 [ 61.697358][ C1] ? kvm_sched_clock_read+0x14/0x40 [ 61.702526][ C1] ? sched_clock+0x2a/0x40 [ 61.707024][ C1] ? sched_clock_cpu+0x18/0x1b0 [ 61.711850][ C1] cpuidle_enter_state+0xff/0x960 [ 61.716865][ C1] ? tick_nohz_idle_enter+0x238/0x360 [ 61.722210][ C1] cpuidle_enter+0x4a/0xa0 [ 61.726595][ C1] do_idle+0x431/0x6d0 [ 61.730643][ C1] ? arch_cpu_idle_exit+0x70/0x70 [ 61.735639][ C1] ? trace_hardirqs_on+0x5f/0x220 [ 61.740733][ C1] ? lockdep_hardirqs_on+0x6a/0xe0 [ 61.745827][ C1] cpu_startup_entry+0x14/0x20 [ 61.750565][ C1] start_secondary+0x2b3/0x370 [ 61.755302][ C1] ? set_cpu_sibling_map+0x1e80/0x1e80 [ 61.760763][ C1] secondary_startup_64+0xa4/0xb0 [ 61.765759][ C1] Modules linked in: [ 61.769701][ C1] ---[ end trace a10fb8c026f7d159 ]--- [ 61.775186][ C1] RIP: 0010:rose_send_frame+0x1dd/0x2f0 [ 61.780733][ C1] Code: 48 c1 ea 03 80 3c 02 00 0f 85 06 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b 20 48 8d bd 50 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ea 00 00 00 4c 8b bd 50 03 00 00 e9 77 fe ff ff [ 61.800470][ C1] RSP: 0018:ffffc90000da8b18 EFLAGS: 00010206 [ 61.806574][ C1] RAX: dffffc0000000000 RBX: ffff888099201400 RCX: ffffffff870f3ac3 [ 61.814580][ C1] RDX: 000000000000006a RSI: ffffffff870f3c32 RDI: 0000000000000350 [ 61.822545][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880937f3ce3 [ 61.830566][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888099201400 [ 61.838583][ C1] R13: 0000000000000078 R14: ffff888093034440 R15: 0000000000000010 [ 61.846791][ C1] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 61.855757][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.862328][ C1] CR2: 00007f274b202000 CR3: 0000000093298000 CR4: 00000000001406e0 [ 61.870345][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.878362][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.886364][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 61.895066][ C1] Kernel Offset: disabled [ 61.899385][ C1] Rebooting in 86400 seconds..