Warning: Permanently added '10.128.0.160' (ECDSA) to the list of known hosts. syzkaller login: [ 29.113126] IPVS: ftp: loaded support on port[0] = 21 [ 29.187474] chnl_net:caif_netlink_parms(): no params data found [ 29.237822] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.244470] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.252403] device bridge_slave_0 entered promiscuous mode [ 29.259253] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.266615] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.273666] device bridge_slave_1 entered promiscuous mode [ 29.290032] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 29.298752] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 29.316432] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 29.323629] team0: Port device team_slave_0 added [ 29.328953] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 29.336284] team0: Port device team_slave_1 added [ 29.350326] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 29.356681] 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. [ 29.381921] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 29.393390] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 29.399624] 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. [ 29.424849] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 29.435409] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 29.442888] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 29.460562] device hsr_slave_0 entered promiscuous mode [ 29.466222] device hsr_slave_1 entered promiscuous mode [ 29.472387] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 29.479290] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 29.539259] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.545708] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.552636] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.558986] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.587075] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 29.593767] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.603216] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.611909] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.619815] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.627494] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.637418] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 29.644043] 8021q: adding VLAN 0 to HW filter on device team0 [ 29.652320] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.659879] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.666275] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.675340] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.683626] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.689960] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.709791] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 29.719617] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 29.730479] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 29.737726] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 29.745621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 29.753665] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.761434] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.768876] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 29.775750] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 29.787222] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 29.795062] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 29.802465] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 29.813360] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 29.863522] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 29.873732] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.903340] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 29.910243] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 29.917584] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 29.926569] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.934133] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.941389] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.949605] device veth0_vlan entered promiscuous mode [ 29.959362] device veth1_vlan entered promiscuous mode [ 29.965570] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 29.974159] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 29.986458] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 29.995863] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 30.003458] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 30.011578] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 30.020898] device veth0_macvtap entered promiscuous mode [ 30.026958] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 30.035791] device veth1_macvtap entered promiscuous mode [ 30.043992] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 30.052937] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 30.062366] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 30.069040] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 30.078423] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 30.087834] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 30.095454] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 30.170866] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 30.219344] divide error: 0000 [#1] PREEMPT SMP KASAN [ 30.224548] Modules linked in: [ 30.227720] CPU: 1 PID: 8253 Comm: syz-executor770 Not tainted 4.14.212-syzkaller #0 [ 30.235586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.244952] task: ffff8880afbce540 task.stack: ffff8880af948000 [ 30.251433] RIP: 0010:netem_enqueue+0x1364/0x2dec [ 30.256254] RSP: 0018:ffff8880af94f750 EFLAGS: 00010246 [ 30.262150] RAX: 00000000ccdcdd6a RBX: ffff8880b16bdcc0 RCX: 0000000000000000 [ 30.269433] RDX: 0000000000000000 RSI: ffff8880a8fb0300 RDI: ffff8880a8fb0384 [ 30.276675] RBP: 0000000000000020 R08: ffff8880a8fb03d8 R09: 0000000000000000 [ 30.283941] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 30.291186] R13: ffff8880aff30fa0 R14: 0000000000000000 R15: ffff8880aff30d80 [ 30.298445] FS: 00007f51342a1700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 30.306655] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.312509] CR2: 00000000200000c0 CR3: 00000000b4890000 CR4: 00000000001406e0 [ 30.319754] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.326996] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.334304] Call Trace: [ 30.336884] ? check_preemption_disabled+0x35/0x240 [ 30.341907] netem_enqueue+0x889/0x2dec [ 30.345856] ? __dev_queue_xmit+0x1108/0x2480 [ 30.350333] __dev_queue_xmit+0x121d/0x2480 [ 30.354646] ? __netlink_lookup+0x345/0x5d0 [ 30.358948] ? netdev_pick_tx+0x2e0/0x2e0 [ 30.363082] ? skb_clone+0x126/0x9a0 [ 30.366771] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.372207] ? memcpy+0x35/0x50 [ 30.375479] ? memcpy+0x35/0x50 [ 30.378732] ? skb_clone+0x6ac/0x9a0 [ 30.382419] netlink_deliver_tap+0x60c/0x7d0 [ 30.386811] netlink_unicast+0x485/0x610 [ 30.390848] ? netlink_sendskb+0xd0/0xd0 [ 30.394893] ? __check_object_size+0x1b/0x22c [ 30.399362] netlink_sendmsg+0x62e/0xb80 [ 30.403420] ? nlmsg_notify+0x170/0x170 [ 30.407369] ? kernel_recvmsg+0x210/0x210 [ 30.411499] ? security_socket_sendmsg+0x83/0xb0 [ 30.416238] ? nlmsg_notify+0x170/0x170 [ 30.420202] sock_sendmsg+0xb5/0x100 [ 30.423906] ___sys_sendmsg+0x6c8/0x800 [ 30.427854] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 30.432592] ? trace_hardirqs_on+0x10/0x10 [ 30.436801] ? do_futex+0x12b/0x1980 [ 30.442316] ? __fget+0x1fe/0x360 [ 30.445759] ? lock_acquire+0x170/0x3f0 [ 30.449732] ? lock_downgrade+0x740/0x740 [ 30.453880] ? __fget+0x225/0x360 [ 30.457309] ? __fdget+0x196/0x1f0 [ 30.460839] ? sockfd_lookup_light+0xb2/0x160 [ 30.465311] __sys_sendmsg+0xa3/0x120 [ 30.469089] ? SyS_shutdown+0x160/0x160 [ 30.473043] ? move_addr_to_kernel+0x60/0x60 [ 30.477441] ? __do_page_fault+0x159/0xad0 [ 30.481662] SyS_sendmsg+0x27/0x40 [ 30.485176] ? __sys_sendmsg+0x120/0x120 [ 30.489212] do_syscall_64+0x1d5/0x640 [ 30.493091] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.498267] RIP: 0033:0x44a7d9 [ 30.501441] RSP: 002b:00007f51342a0ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 30.509120] RAX: ffffffffffffffda RBX: 00000000006e0c48 RCX: 000000000044a7d9 [ 30.516366] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004 [ 30.523611] RBP: 00000000006e0c40 R08: 0000000000000000 R09: 0000000000000000 [ 30.530861] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e0c4c [ 30.538119] R13: 00007fff25679ddf R14: 00007f51342a19c0 R15: 0000000000000000 [ 30.545382] Code: 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 25 c4 8a fb 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 8e 84 00 00 00 f1 48 b8 00 00 00 00 00 fc ff df 48 01 d3 48 89 d9 48 c1 e9 [ 30.564460] RIP: netem_enqueue+0x1364/0x2dec RSP: ffff8880af94f750 [ 30.570817] ---[ end trace 32748f232e869aa3 ]--- [ 30.575565] Kernel panic - not syncing: Fatal exception in interrupt [ 30.582597] Kernel Offset: disabled [ 30.586213] Rebooting in 86400 seconds..