[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.1.61' (ECDSA) to the list of known hosts. 2020/07/18 00:58:14 parsed 1 programs 2020/07/18 00:58:14 executed programs: 0 syzkaller login: [ 64.185628][ T27] audit: type=1400 audit(1595033894.462:8): avc: denied { execmem } for pid=6825 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 64.217576][ T6826] IPVS: ftp: loaded support on port[0] = 21 [ 64.333837][ T6826] chnl_net:caif_netlink_parms(): no params data found [ 64.400100][ T6826] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.407957][ T6826] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.418183][ T6826] device bridge_slave_0 entered promiscuous mode [ 64.428245][ T6826] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.435650][ T6826] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.444269][ T6826] device bridge_slave_1 entered promiscuous mode [ 64.467068][ T6826] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.479529][ T6826] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.502251][ T6826] team0: Port device team_slave_0 added [ 64.510496][ T6826] team0: Port device team_slave_1 added [ 64.527896][ T6826] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.534895][ T6826] 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. [ 64.561144][ T6826] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.573754][ T6826] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.580786][ T6826] 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. [ 64.607260][ T6826] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.672006][ T6826] device hsr_slave_0 entered promiscuous mode [ 64.729005][ T6826] device hsr_slave_1 entered promiscuous mode [ 64.883315][ T6826] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.951159][ T6826] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.000598][ T6826] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.040473][ T6826] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.104669][ T6826] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.111902][ T6826] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.119666][ T6826] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.126758][ T6826] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.170342][ T6826] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.184423][ T2634] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.193518][ T2634] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.202746][ T2634] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.211393][ T2634] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.224978][ T6826] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.235077][ T3840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.244080][ T3840] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.251197][ T3840] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.263201][ T2634] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.271884][ T2634] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.278970][ T2634] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.300940][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.310066][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.320303][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.331563][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.340713][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.354260][ T6826] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.366289][ T6826] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.374778][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.383895][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.404000][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.411518][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.424631][ T6826] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.447861][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.457058][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.477635][ T6826] device veth0_vlan entered promiscuous mode [ 65.485337][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.494229][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.508637][ T6826] device veth1_vlan entered promiscuous mode [ 65.521137][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.529290][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.536917][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.545412][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.563714][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.572759][ T3843] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.583930][ T6826] device veth0_macvtap entered promiscuous mode [ 65.594574][ T6826] device veth1_macvtap entered promiscuous mode [ 65.611659][ T6826] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.619635][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.627627][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.636474][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.645663][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.657870][ T6826] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.665874][ T3840] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.675779][ T3840] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.133917][ T0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 66.133928][ T0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 66.133941][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc5-syzkaller #0 [ 66.133948][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.133969][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 66.133981][ T0] 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 [ 66.133989][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 66.133999][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 66.134007][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff88808eb102c0 RDI: ffff8880a9638340 [ 66.134015][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9638c08 [ 66.134023][ T0] R10: fffffbfff155d939 R11: 0000000000000000 R12: ffff8880ae735e00 [ 66.134031][ T0] R13: ffff8880a9638340 R14: ffff88808eb102c0 R15: ffff8880a9638770 [ 66.134042][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 66.134051][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.134058][ T0] CR2: 000000000078c000 CR3: 000000009e943000 CR4: 00000000001406e0 [ 66.134070][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.134077][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.134081][ T0] Call Trace: [ 66.134098][ T0] __schedule+0x8e1/0x1eb0 [ 66.134116][ T0] ? io_schedule_timeout+0x140/0x140 [ 66.134131][ T0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 66.134150][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 66.134162][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 66.134176][ T0] schedule_idle+0x53/0x90 [ 66.134190][ T0] do_idle+0x323/0x6d0 [ 66.134205][ T0] ? arch_cpu_idle_exit+0x70/0x70 [ 66.134216][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 66.134227][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 66.134242][ T0] cpu_startup_entry+0x14/0x20 [ 66.134255][ T0] start_secondary+0x2b3/0x370 [ 66.134269][ T0] ? set_cpu_sibling_map+0x1e80/0x1e80 [ 66.134286][ T0] secondary_startup_64+0xa4/0xb0 [ 66.134296][ T0] Modules linked in: [ 66.134312][ T0] ---[ end trace c472cc0b6a1ced57 ]--- [ 66.134326][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 66.134338][ T0] 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 [ 66.134345][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 66.134354][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 66.134363][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff88808eb102c0 RDI: ffff8880a9638340 [ 66.134370][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9638c08 [ 66.134378][ T0] R10: fffffbfff155d939 R11: 0000000000000000 R12: ffff8880ae735e00 [ 66.134386][ T0] R13: ffff8880a9638340 R14: ffff88808eb102c0 R15: ffff8880a9638770 [ 66.134396][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 66.134405][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.134412][ T0] CR2: 000000000078c000 CR3: 000000009e943000 CR4: 00000000001406e0 [ 66.134422][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.134430][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.134436][ T0] Kernel panic - not syncing: Fatal exception [ 66.135516][ T0] Kernel Offset: disabled [ 66.484879][ T0] Rebooting in 86400 seconds..