[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.176' (ECDSA) to the list of known hosts. 2021/06/21 00:59:52 parsed 1 programs 2021/06/21 00:59:53 executed programs: 0 syzkaller login: [ 1583.162258] IPVS: ftp: loaded support on port[0] = 21 [ 1583.269036] chnl_net:caif_netlink_parms(): no params data found [ 1583.329817] bridge0: port 1(bridge_slave_0) entered blocking state [ 1583.336578] bridge0: port 1(bridge_slave_0) entered disabled state [ 1583.344866] device bridge_slave_0 entered promiscuous mode [ 1583.353126] bridge0: port 2(bridge_slave_1) entered blocking state [ 1583.359877] bridge0: port 2(bridge_slave_1) entered disabled state [ 1583.366828] device bridge_slave_1 entered promiscuous mode [ 1583.384559] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1583.393301] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1583.410985] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1583.418507] team0: Port device team_slave_0 added [ 1583.423929] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1583.431448] team0: Port device team_slave_1 added [ 1583.446709] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1583.453000] 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. [ 1583.478323] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1583.489783] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1583.496031] 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. [ 1583.521346] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1583.532571] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1583.540131] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1583.558673] device hsr_slave_0 entered promiscuous mode [ 1583.564398] device hsr_slave_1 entered promiscuous mode [ 1583.571433] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1583.578586] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1583.641235] bridge0: port 2(bridge_slave_1) entered blocking state [ 1583.647810] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1583.654832] bridge0: port 1(bridge_slave_0) entered blocking state [ 1583.661256] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1583.691809] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1583.697885] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1583.708498] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1583.717250] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1583.726636] bridge0: port 1(bridge_slave_0) entered disabled state [ 1583.734203] bridge0: port 2(bridge_slave_1) entered disabled state [ 1583.741574] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1583.752804] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1583.759004] 8021q: adding VLAN 0 to HW filter on device team0 [ 1583.768158] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1583.775857] bridge0: port 1(bridge_slave_0) entered blocking state [ 1583.782249] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1583.792741] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1583.800449] bridge0: port 2(bridge_slave_1) entered blocking state [ 1583.806774] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1583.827515] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1583.837627] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1583.848387] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1583.855697] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1583.863909] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1583.871669] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1583.879714] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1583.887221] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1583.894172] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1583.907399] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1583.915263] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1583.922201] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1583.932627] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1583.946429] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1583.956012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1583.986757] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1583.994519] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1584.001352] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1584.011117] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1584.019807] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1584.026638] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1584.035861] device veth0_vlan entered promiscuous mode [ 1584.045070] device veth1_vlan entered promiscuous mode [ 1584.051230] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1584.060099] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1584.072553] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1584.081446] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1584.089914] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1584.097098] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1584.107209] device veth0_macvtap entered promiscuous mode [ 1584.113852] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1584.122251] device veth1_macvtap entered promiscuous mode [ 1584.131937] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1584.140746] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1584.152516] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1584.159843] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1584.168972] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1584.178791] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1584.189221] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1584.291024] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 1584.297822] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1584.316937] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1584.321946] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 1584.331491] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1584.342979] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1584.350702] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1584.357511] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1585.199618] Bluetooth: hci0: command 0x0409 tx timeout 2021/06/21 00:59:58 executed programs: 23 [ 1587.278345] Bluetooth: hci0: command 0x041b tx timeout [ 1589.359256] Bluetooth: hci0: command 0x040f tx timeout [ 1591.437744] Bluetooth: hci0: command 0x0419 tx timeout 2021/06/21 01:00:03 executed programs: 69 2021/06/21 01:00:08 executed programs: 116 [ 1601.619119] WARNING: CPU: 0 PID: 9955 at kernel/signal.c:372 task_participate_group_stop+0x29e/0x300 [ 1601.628752] Kernel panic - not syncing: panic_on_warn set ... [ 1601.628752] [ 1601.636460] CPU: 0 PID: 9955 Comm: exe Not tainted 4.19.195-syzkaller #0 [ 1601.643307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1601.652745] Call Trace: [ 1601.655328] dump_stack+0x1fc/0x2ef [ 1601.659071] panic+0x26a/0x50e [ 1601.662274] ? __warn_printk+0xf3/0xf3 [ 1601.666178] ? task_participate_group_stop+0x29e/0x300 [ 1601.671451] ? __probe_kernel_read+0x130/0x1b0 [ 1601.676041] ? __warn.cold+0x5/0x5a [ 1601.679659] ? __warn+0xe4/0x200 [ 1601.683099] ? task_participate_group_stop+0x29e/0x300 [ 1601.688375] __warn.cold+0x20/0x5a [ 1601.691915] ? depot_save_stack+0x258/0x410 [ 1601.696226] ? task_participate_group_stop+0x29e/0x300 [ 1601.701504] report_bug+0x262/0x2b0 [ 1601.705134] do_error_trap+0x1d7/0x310 [ 1601.709023] ? math_error+0x310/0x310 [ 1601.712961] ? check_preemption_disabled+0x41/0x280 [ 1601.718062] ? error_entry+0x72/0xd0 [ 1601.721807] ? trace_hardirqs_off_caller+0x2c/0x210 [ 1601.726820] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1601.731705] invalid_op+0x14/0x20 [ 1601.735145] RIP: 0010:task_participate_group_stop+0x29e/0x300 [ 1601.741138] Code: 00 f0 83 44 24 fc 00 be 15 00 00 00 4c 89 ef e8 48 24 0e 00 e9 4c fe ff ff e8 2e 9b 27 00 0f 0b e9 f2 fd ff ff e8 22 9b 27 00 <0f> 0b e9 a3 fe ff ff 48 89 ef e8 43 67 5d 00 e9 6d fe ff ff 48 89 [ 1601.760264] RSP: 0018:ffff888073f17bd0 EFLAGS: 00010093 [ 1601.765614] RAX: ffff8880a549e540 RBX: 0000000000000000 RCX: ffffffff813ae2a0 [ 1601.772867] RDX: 0000000000000000 RSI: ffffffff813ae40e RDI: 0000000000000005 [ 1601.780133] RBP: ffff8880b42713a0 R08: 0000000000000001 R09: 0000000000000000 [ 1601.787405] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b4271300 [ 1601.794685] R13: ffff8880a549e9c0 R14: 0000000000040000 R15: 0000000000000000 [ 1601.801985] ? task_participate_group_stop+0x130/0x300 [ 1601.807268] ? task_participate_group_stop+0x29e/0x300 [ 1601.812575] do_signal_stop+0x1f1/0x860 [ 1601.816556] get_signal+0xf17/0x1f70 [ 1601.820263] ? check_preemption_disabled+0x41/0x280 [ 1601.825290] do_signal+0x8f/0x1670 [ 1601.828834] ? setup_sigcontext+0x820/0x820 [ 1601.833260] ? __do_execve_file+0x2ba/0x2360 [ 1601.837670] ? open_exec+0x70/0x70 [ 1601.841204] ? check_preemption_disabled+0x41/0x280 [ 1601.846209] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 1601.851524] ? __phys_addr+0x9a/0x110 [ 1601.855452] ? __check_object_size+0x17b/0x3e0 [ 1601.860057] ? exit_to_usermode_loop+0x36/0x2a0 [ 1601.864734] exit_to_usermode_loop+0x204/0x2a0 [ 1601.869313] do_syscall_64+0x538/0x620 [ 1601.873193] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1601.878365] RIP: 0033:0x402e70 [ 1601.881676] Code: Bad RIP value. [ 1601.885113] RSP: 002b:00007fffb6abe220 EFLAGS: 00000200 ORIG_RAX: 000000000000003b [ 1601.892824] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1601.900233] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1601.907584] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 1601.914846] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1601.922170] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 1601.930435] Kernel Offset: disabled [ 1601.934145] Rebooting in 86400 seconds..