Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.142' (ECDSA) to the list of known hosts. syzkaller login: [ 42.203486][ T6841] IPVS: ftp: loaded support on port[0] = 21 [ 42.271336][ T6841] chnl_net:caif_netlink_parms(): no params data found [ 42.315971][ T6841] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.323731][ T6841] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.332709][ T6841] device bridge_slave_0 entered promiscuous mode [ 42.341636][ T6841] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.348726][ T6841] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.357398][ T6841] device bridge_slave_1 entered promiscuous mode [ 42.375500][ T6841] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 42.387012][ T6841] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 42.408245][ T6841] team0: Port device team_slave_0 added [ 42.417503][ T6841] team0: Port device team_slave_1 added [ 42.433661][ T6841] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 42.440881][ T6841] 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. [ 42.467737][ T6841] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 42.481381][ T6841] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 42.488410][ T6841] 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. [ 42.516517][ T6841] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 42.592613][ T6841] device hsr_slave_0 entered promiscuous mode [ 42.640095][ T6841] device hsr_slave_1 entered promiscuous mode [ 42.757132][ T6841] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 42.842564][ T6841] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 42.911634][ T6841] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 42.971797][ T6841] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 43.022659][ T6841] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.029837][ T6841] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.037414][ T6841] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.044845][ T6841] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.083672][ T6841] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.095624][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.105420][ T2496] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.113729][ T2496] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.123400][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 43.135680][ T6841] 8021q: adding VLAN 0 to HW filter on device team0 [ 43.146216][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.155300][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.162418][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.173868][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.183228][ T2496] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.190326][ T2496] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.209852][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 43.218919][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 43.233717][ T6841] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 43.244881][ T6841] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 43.257573][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 43.266259][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.275499][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.284207][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 43.301151][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 43.308621][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 43.320266][ T6841] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 43.338506][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 43.347928][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.366931][ T6841] device veth0_vlan entered promiscuous mode [ 43.374121][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 43.383246][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.391941][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.399903][ T2496] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 43.413672][ T6841] device veth1_vlan entered promiscuous mode [ 43.431322][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 43.440440][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 43.448389][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 43.457474][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 43.469830][ T6841] device veth0_macvtap entered promiscuous mode [ 43.480456][ T6841] device veth1_macvtap entered promiscuous mode [ 43.496311][ T6841] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 43.503980][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 43.513769][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 43.523245][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 43.532576][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 43.546794][ T6841] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 43.555408][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 43.564398][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 43.736232][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): rose0: link becomes ready [ 43.849154][ C0] general protection fault, probably for non-canonical address 0xdffffc000000006a: 0000 [#1] PREEMPT SMP KASAN [ 43.860879][ C0] KASAN: null-ptr-deref in range [0x0000000000000350-0x0000000000000357] [ 43.869284][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc6-syzkaller #0 [ 43.877152][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.887640][ C0] RIP: 0010:rose_transmit_clear_request+0x1e8/0x4a0 [ 43.894209][ C0] Code: fc ff df 80 3c 08 00 74 12 48 89 df e8 71 bd 6a fa 48 b9 00 00 00 00 00 fc ff df bd 50 03 00 00 48 03 2b 48 89 e8 48 c1 e8 03 <80> 3c 08 00 74 12 48 89 ef e8 4a bd 6a fa 48 b9 00 00 00 00 00 fc [ 43.913800][ C0] RSP: 0018:ffffc90000007bc8 EFLAGS: 00010206 [ 43.919836][ C0] RAX: 000000000000006a RBX: ffff8880a733f020 RCX: dffffc0000000000 [ 43.927776][ C0] RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000 [ 43.935722][ C0] RBP: 0000000000000350 R08: ffffffff8748e20f R09: ffffed101505569d [ 43.943678][ C0] R10: ffffed101505569d R11: 0000000000000000 R12: ffff8880a82ab45c [ 43.951623][ C0] R13: 0000000000000032 R14: ffff8880a733f000 R15: ffff8880a82ab45d [ 43.959843][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 43.968873][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.975543][ C0] CR2: 00007f0daf48f000 CR3: 0000000092dd0000 CR4: 00000000001406f0 [ 43.983640][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.991767][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.000007][ C0] Call Trace: [ 44.003263][ C0] [ 44.006093][ C0] rose_rx_call_request+0xa11/0x1980 [ 44.011407][ C0] ? trace_lock_release+0x137/0x1a0 [ 44.016666][ C0] rose_loopback_timer+0x2ea/0x480 [ 44.021752][ C0] ? rose_loopback_init+0x70/0x70 [ 44.026815][ C0] call_timer_fn+0x91/0x160 [ 44.031291][ C0] ? rose_loopback_init+0x70/0x70 [ 44.036283][ C0] __run_timers+0x736/0x930 [ 44.040884][ C0] ? sched_clock+0x36/0x40 [ 44.045275][ C0] ? sched_clock_cpu+0x18/0x3b0 [ 44.050097][ C0] ? lock_is_held_type+0x87/0xe0 [ 44.055012][ C0] run_timer_softirq+0x46/0x80 [ 44.059846][ C0] __do_softirq+0x268/0x80c [ 44.064431][ C0] ? asm_call_on_stack+0xf/0x20 [ 44.069559][ C0] asm_call_on_stack+0xf/0x20 [ 44.074204][ C0] [ 44.077200][ C0] do_softirq_own_stack+0xe0/0x1a0 [ 44.082296][ C0] __irq_exit_rcu+0x1e1/0x1f0 [ 44.086957][ C0] irq_exit_rcu+0x6/0x50 [ 44.091171][ C0] sysvec_apic_timer_interrupt+0x117/0x130 [ 44.096945][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 44.102925][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 44.108266][ C0] Code: 80 e1 07 80 c1 03 38 c1 7c bc 48 89 df e8 ca 69 93 f9 eb b2 cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 36 80 62 00 fb f4 90 e9 07 00 00 00 0f 00 2d 26 80 62 00 f4 c3 cc cc 41 56 53 65 [ 44.128014][ C0] RSP: 0018:ffffffff89407d48 EFLAGS: 00000286 [ 44.134139][ C0] RAX: 1ffffffff1297902 RBX: 0000000000000000 RCX: dffffc0000000000 [ 44.142080][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff882039ca [ 44.150024][ C0] RBP: 1ffff11014d1a84e R08: ffffffff817a3310 R09: fffffbfff1290539 [ 44.157976][ C0] R10: fffffbfff1290539 R11: 0000000000000000 R12: 0000000000000001 [ 44.166029][ C0] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff8880a68d4270 [ 44.174004][ C0] ? trace_hardirqs_on+0x30/0x80 [ 44.178918][ C0] ? acpi_safe_halt+0x5a/0xe0 [ 44.183564][ C0] acpi_safe_halt+0x87/0xe0 [ 44.188035][ C0] acpi_idle_enter+0x3f4/0xac0 [ 44.192954][ C0] cpuidle_enter_state+0x2d7/0x7b0 [ 44.198034][ C0] cpuidle_enter+0x59/0x90 [ 44.202418][ C0] do_idle+0x49c/0x650 [ 44.206472][ C0] cpu_startup_entry+0x15/0x20 [ 44.211206][ C0] ? time_init+0x33/0x33 [ 44.215417][ C0] start_kernel+0x674/0x777 [ 44.219893][ C0] secondary_startup_64+0xa4/0xb0 [ 44.224884][ C0] Modules linked in: [ 44.228813][ C0] ---[ end trace f249db12a81c3a05 ]--- [ 44.234265][ C0] RIP: 0010:rose_transmit_clear_request+0x1e8/0x4a0 [ 44.240882][ C0] Code: fc ff df 80 3c 08 00 74 12 48 89 df e8 71 bd 6a fa 48 b9 00 00 00 00 00 fc ff df bd 50 03 00 00 48 03 2b 48 89 e8 48 c1 e8 03 <80> 3c 08 00 74 12 48 89 ef e8 4a bd 6a fa 48 b9 00 00 00 00 00 fc [ 44.260622][ C0] RSP: 0018:ffffc90000007bc8 EFLAGS: 00010206 [ 44.266670][ C0] RAX: 000000000000006a RBX: ffff8880a733f020 RCX: dffffc0000000000 [ 44.274737][ C0] RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000 [ 44.282742][ C0] RBP: 0000000000000350 R08: ffffffff8748e20f R09: ffffed101505569d [ 44.290730][ C0] R10: ffffed101505569d R11: 0000000000000000 R12: ffff8880a82ab45c [ 44.298727][ C0] R13: 0000000000000032 R14: ffff8880a733f000 R15: ffff8880a82ab45d [ 44.306704][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 44.315643][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.322765][ C0] CR2: 00007f0daf48f000 CR3: 0000000092dd0000 CR4: 00000000001406f0 [ 44.330748][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.338740][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.346870][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 44.355765][ C0] Kernel Offset: disabled [ 44.360075][ C0] Rebooting in 86400 seconds..