[ 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 '10.128.0.56' (ECDSA) to the list of known hosts. syzkaller login: [ 43.789593][ T6810] IPVS: ftp: loaded support on port[0] = 21 [ 43.863609][ T6810] chnl_net:caif_netlink_parms(): no params data found [ 43.907093][ T6810] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.914789][ T6810] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.924119][ T6810] device bridge_slave_0 entered promiscuous mode [ 43.933258][ T6810] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.940943][ T6810] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.948476][ T6810] device bridge_slave_1 entered promiscuous mode [ 43.966789][ T6810] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 43.977367][ T6810] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 43.999430][ T6810] team0: Port device team_slave_0 added [ 44.006955][ T6810] team0: Port device team_slave_1 added [ 44.022989][ T6810] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 44.029915][ T6810] 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. [ 44.056532][ T6810] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 44.068774][ T6810] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 44.076383][ T6810] 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. [ 44.102939][ T6810] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 44.163081][ T6810] device hsr_slave_0 entered promiscuous mode [ 44.220486][ T6810] device hsr_slave_1 entered promiscuous mode [ 44.355057][ T6810] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 44.392377][ T6810] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 44.442773][ T6810] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 44.482022][ T6810] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 44.534170][ T6810] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.541313][ T6810] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.548748][ T6810] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.555879][ T6810] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.592667][ T6810] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.607479][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.616888][ T23] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.625169][ T23] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.632967][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 44.645714][ T6810] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.655913][ T2487] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.665045][ T2487] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.672187][ T2487] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.683878][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.692664][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.699723][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.721367][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.730899][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.739117][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.748533][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 44.761147][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.772120][ T6810] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 44.788336][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 44.796645][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 44.809642][ T6810] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 44.826300][ T2487] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 44.843789][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 44.852108][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 44.861467][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.872637][ T6810] device veth0_vlan entered promiscuous mode [ 44.884727][ T6810] device veth1_vlan entered promiscuous mode [ 44.904166][ T2487] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 44.912943][ T2487] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.923349][ T6810] device veth0_macvtap entered promiscuous mode [ 44.937383][ T6810] device veth1_macvtap entered promiscuous mode [ 44.952754][ T6810] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 44.960208][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 44.968089][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 44.977357][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 44.986897][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.998137][ T6810] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 45.005969][ T2491] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.015013][ T2491] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 45.259650][ C0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 45.259659][ C0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 45.259669][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc6-syzkaller #0 [ 45.259673][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.259689][ C0] RIP: 0010:pvclock_gtod_notify+0x0/0x3e0 [ 45.259697][ C0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 45.259702][ C0] RSP: 0018:ffffc90000007c70 EFLAGS: 00010046 [ 45.259709][ C0] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: dffffc0000000000 [ 45.259715][ C0] RDX: ffffffff8b7f8c18 RSI: 0000000000000000 RDI: ffffffff894a82f8 [ 45.259720][ C0] RBP: ffffffff894a82f8 R08: ffffffff814f2afb R09: fffffbfff1674e9f [ 45.259725][ C0] R10: fffffbfff1674e9f R11: 0000000000000000 R12: 0000000000000000 [ 45.259731][ C0] R13: 00000000ffffffff R14: 1ffffffff129505f R15: 0000000000000000 [ 45.259738][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 45.259744][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.259750][ C0] CR2: 00007fe7e9773000 CR3: 00000000a019d000 CR4: 00000000001406f0 [ 45.259758][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.259763][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.259766][ C0] Call Trace: [ 45.259771][ C0] [ 45.259796][ C0] raw_notifier_call_chain+0xe7/0x170 [ 45.259809][ C0] timekeeping_update+0x281/0x3f0 [ 45.259820][ C0] ? tick_sched_timer+0xba/0x410 [ 45.259829][ C0] timekeeping_advance+0x7cd/0x960 [ 45.259839][ C0] ? tick_sched_timer+0xba/0x410 [ 45.259849][ C0] ? _raw_spin_unlock+0x24/0x40 [ 45.259874][ C0] tick_sched_timer+0xba/0x410 [ 45.259883][ C0] ? tick_setup_sched_timer+0x3e0/0x3e0 [ 45.259894][ C0] __hrtimer_run_queues+0x42d/0x930 [ 45.259911][ C0] hrtimer_interrupt+0x373/0xd60 [ 45.259932][ C0] __sysvec_apic_timer_interrupt+0xf0/0x260 [ 45.259943][ C0] asm_call_on_stack+0xf/0x20 [ 45.259947][ C0] [ 45.259956][ C0] sysvec_apic_timer_interrupt+0xb9/0x130 [ 45.259965][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 45.259975][ C0] RIP: 0010:native_safe_halt+0xe/0x10 [ 45.259982][ C0] Code: 80 e1 07 80 c1 03 38 c1 7c bc 48 89 df e8 ca 4b 93 f9 eb b2 cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d d6 60 62 00 fb f4 90 e9 07 00 00 00 0f 00 2d c6 60 62 00 f4 c3 cc cc 41 56 53 65 [ 45.259987][ C0] RSP: 0018:ffffffff89407d48 EFLAGS: 00000286 [ 45.259994][ C0] RAX: 1ffffffff1297902 RBX: 0000000000000000 RCX: dffffc0000000000 [ 45.259999][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8820592a [ 45.260005][ C0] RBP: 1ffff1104351aa4e R08: ffffffff817a3350 R09: fffffbfff1290539 [ 45.260010][ C0] R10: fffffbfff1290539 R11: 0000000000000000 R12: 0000000000000001 [ 45.260016][ C0] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88821a8d5270 [ 45.260028][ C0] ? trace_hardirqs_on+0x30/0x80 [ 45.260052][ C0] ? acpi_safe_halt+0x5a/0xe0 [ 45.260063][ C0] acpi_safe_halt+0x87/0xe0 [ 45.260073][ C0] acpi_idle_enter+0x3f4/0xac0 [ 45.260088][ C0] cpuidle_enter_state+0x2d7/0x7b0 [ 45.260101][ C0] cpuidle_enter+0x59/0x90 [ 45.260111][ C0] do_idle+0x49c/0x650 [ 45.260125][ C0] cpu_startup_entry+0x15/0x20 [ 45.260133][ C0] ? time_init+0x33/0x33 [ 45.260143][ C0] start_kernel+0x674/0x777 [ 45.260155][ C0] secondary_startup_64+0xa4/0xb0 [ 45.260164][ C0] Modules linked in: [ 45.260177][ C0] ---[ end trace ebb5a10040c84408 ]--- [ 45.260186][ C0] RIP: 0010:pvclock_gtod_notify+0x0/0x3e0 [ 45.260194][ C0] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 45.260199][ C0] RSP: 0018:ffffc90000007c70 EFLAGS: 00010046 [ 45.260205][ C0] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: dffffc0000000000 [ 45.260211][ C0] RDX: ffffffff8b7f8c18 RSI: 0000000000000000 RDI: ffffffff894a82f8 [ 45.260217][ C0] RBP: ffffffff894a82f8 R08: ffffffff814f2afb R09: fffffbfff1674e9f [ 45.260222][ C0] R10: fffffbfff1674e9f R11: 0000000000000000 R12: 0000000000000000 [ 45.260228][ C0] R13: 00000000ffffffff R14: 1ffffffff129505f R15: 0000000000000000 [ 45.260235][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 45.260241][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.260247][ C0] CR2: 00007fe7e9773000 CR3: 00000000a019d000 CR4: 00000000001406f0 [ 45.260252][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.260258][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.260263][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 45.261292][ C0] Kernel Offset: disabled [ 45.744280][ C0] Rebooting in 86400 seconds..