[ 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 '10.128.0.133' (ECDSA) to the list of known hosts. 2020/07/08 03:42:03 parsed 1 programs 2020/07/08 03:42:03 executed programs: 0 syzkaller login: [ 67.536264][ T28] audit: type=1400 audit(1594179723.984:8): avc: denied { execmem } for pid=6843 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 67.579777][ T6844] IPVS: ftp: loaded support on port[0] = 21 [ 67.681579][ T6844] chnl_net:caif_netlink_parms(): no params data found [ 67.731847][ T6844] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.740338][ T6844] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.749427][ T6844] device bridge_slave_0 entered promiscuous mode [ 67.758860][ T6844] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.767207][ T6844] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.774876][ T6844] device bridge_slave_1 entered promiscuous mode [ 67.795722][ T6844] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.808321][ T6844] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.831087][ T6844] team0: Port device team_slave_0 added [ 67.838396][ T6844] team0: Port device team_slave_1 added [ 67.855640][ T6844] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.862915][ T6844] 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. [ 67.889017][ T6844] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.901706][ T6844] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.908758][ T6844] 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. [ 67.935044][ T6844] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.999218][ T6844] device hsr_slave_0 entered promiscuous mode [ 68.056136][ T6844] device hsr_slave_1 entered promiscuous mode [ 68.248985][ T6844] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.308918][ T6844] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.358894][ T6844] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.428028][ T6844] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.512251][ T6844] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.519422][ T6844] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.527356][ T6844] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.534432][ T6844] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.580444][ T6844] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.593782][ T3361] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.604499][ T3361] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.613652][ T3361] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.622449][ T3361] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.637028][ T6844] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.648102][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.657067][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.664156][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.677268][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.687299][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.697002][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.704052][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.727606][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.736759][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.746837][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.755379][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.766472][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.774931][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.785516][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.794129][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.804232][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.817026][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.825411][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.835294][ T6844] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.854221][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.861860][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.875178][ T6844] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.894595][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.903680][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.924785][ T6844] device veth0_vlan entered promiscuous mode [ 68.931592][ T2680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.942768][ T2680] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.952386][ T2680] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.960392][ T2680] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.974074][ T6844] device veth1_vlan entered promiscuous mode [ 68.994793][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.003523][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.012752][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.022052][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.032990][ T6844] device veth0_macvtap entered promiscuous mode [ 69.043801][ T6844] device veth1_macvtap entered promiscuous mode [ 69.061033][ T6844] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.070038][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.079821][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.088270][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.097477][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.110139][ T6844] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.117901][ T2680] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.127761][ T2680] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.598727][ T0] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 69.598738][ T0] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 69.598751][ T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc3-syzkaller #0 [ 69.598758][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.598778][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 69.598791][ T0] Code: e8 15 00 00 00 00 8b 44 24 28 00 00 00 00 48 01 00 00 00 00 00 00 8b 44 24 3c 00 00 00 00 e9 2f fd ff 00 00 00 00 cc cc cc cc <00> 00 00 00 41 55 41 56 00 00 00 00 a7 d8 14 00 00 00 00 00 d8 14 [ 69.598798][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 69.598808][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 69.598816][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff8880a611e280 RDI: ffff8880a9638340 [ 69.598824][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9638c08 [ 69.598831][ T0] R10: fffffbfff155cb29 R11: 0000000000000000 R12: ffff8880ae735e00 [ 69.598839][ T0] R13: ffff8880a9638340 R14: ffff8880a611e280 R15: ffff8880a9638770 [ 69.598850][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 69.598858][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.598866][ T0] CR2: 0000560de2f18810 CR3: 00000000965b2000 CR4: 00000000001406e0 [ 69.598877][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.598884][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.598888][ T0] Call Trace: [ 69.598903][ T0] __schedule+0x8e1/0x1eb0 [ 69.598920][ T0] ? io_schedule_timeout+0x140/0x140 [ 69.598934][ T0] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 69.598946][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 69.598960][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 69.598974][ T0] schedule_idle+0x53/0x90 [ 69.598987][ T0] do_idle+0x323/0x6d0 [ 69.599001][ T0] ? arch_cpu_idle_exit+0x70/0x70 [ 69.599012][ T0] ? trace_hardirqs_on+0x5f/0x220 [ 69.599025][ T0] ? lockdep_hardirqs_on+0x6a/0xe0 [ 69.599040][ T0] cpu_startup_entry+0x14/0x20 [ 69.599053][ T0] start_secondary+0x2b3/0x370 [ 69.599067][ T0] ? set_cpu_sibling_map+0x1e80/0x1e80 [ 69.599083][ T0] secondary_startup_64+0xa4/0xb0 [ 69.599093][ T0] Modules linked in: [ 69.599108][ T0] ---[ end trace 2a1f2df3281714ae ]--- [ 69.599122][ T0] RIP: 0010:__switch_to_asm+0x0/0x40 [ 69.599134][ T0] Code: e8 15 00 00 00 00 8b 44 24 28 00 00 00 00 48 01 00 00 00 00 00 00 8b 44 24 3c 00 00 00 00 e9 2f fd ff 00 00 00 00 cc cc cc cc <00> 00 00 00 41 55 41 56 00 00 00 00 a7 d8 14 00 00 00 00 00 d8 14 [ 69.599140][ T0] RSP: 0018:ffffc90000d3fd00 EFLAGS: 00010046 [ 69.599150][ T0] RAX: dffffc0000000000 RBX: ffff8880ae735e18 RCX: 0000000000000000 [ 69.599158][ T0] RDX: 1ffff11015ce6bc2 RSI: ffff8880a611e280 RDI: ffff8880a9638340 [ 69.599166][ T0] RBP: ffffc90000d3fdd0 R08: 0000000000000001 R09: ffff8880a9638c08 [ 69.599173][ T0] R10: fffffbfff155cb29 R11: 0000000000000000 R12: ffff8880ae735e00 [ 69.599186][ T0] R13: ffff8880a9638340 R14: ffff8880a611e280 R15: ffff8880a9638770 [ 69.599196][ T0] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 69.599204][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.599212][ T0] CR2: 0000560de2f18810 CR3: 00000000965b2000 CR4: 00000000001406e0 [ 69.599221][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.599228][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.599234][ T0] Kernel panic - not syncing: Fatal exception [ 69.600424][ T0] Kernel Offset: disabled [ 69.951615][ T0] Rebooting in 86400 seconds..