Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.32' (ECDSA) to the list of known hosts. syzkaller login: [ 65.064844][ T8498] IPVS: ftp: loaded support on port[0] = 21 [ 65.236496][ T8498] chnl_net:caif_netlink_parms(): no params data found [ 65.291582][ T8498] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.299691][ T8498] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.308451][ T8498] device bridge_slave_0 entered promiscuous mode [ 65.317457][ T8498] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.324915][ T8498] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.332524][ T8498] device bridge_slave_1 entered promiscuous mode [ 65.354151][ T8498] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.365346][ T8498] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.387307][ T8498] team0: Port device team_slave_0 added [ 65.395237][ T8498] team0: Port device team_slave_1 added [ 65.413609][ T8498] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.420664][ T8498] 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. [ 65.446927][ T8498] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.459597][ T8498] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.466633][ T8498] 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. [ 65.492627][ T8498] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.520213][ T8498] device hsr_slave_0 entered promiscuous mode [ 65.527237][ T8498] device hsr_slave_1 entered promiscuous mode [ 65.626011][ T8498] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.638793][ T8498] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.647973][ T8498] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.659893][ T8498] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.684755][ T8498] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.691914][ T8498] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.699817][ T8498] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.706971][ T8498] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.751845][ T8498] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.767537][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.778372][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.787777][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.796374][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.810822][ T8498] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.822173][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.832752][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.839979][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.865454][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.873922][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.881101][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.891123][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.900755][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.910290][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.922957][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.935962][ T8498] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.949973][ T8498] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.959075][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.976861][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.984245][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.999517][ T8498] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.019726][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.040334][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.049851][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.058244][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.069955][ T8498] device veth0_vlan entered promiscuous mode [ 66.081572][ T8498] device veth1_vlan entered promiscuous mode [ 66.103578][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.111614][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.121368][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.132492][ T8498] device veth0_macvtap entered promiscuous mode [ 66.143083][ T8498] device veth1_macvtap entered promiscuous mode [ 66.162737][ T8498] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.170221][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.180122][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.192051][ T8498] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.200979][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.212390][ T8498] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 66.222680][ T8498] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.233978][ T8498] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.244624][ T8498] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program executing program executing program [ 66.339801][ T8736] divide error: 0000 [#1] PREEMPT SMP KASAN [ 66.345750][ T8736] CPU: 0 PID: 8736 Comm: syz-executor869 Not tainted 5.10.0-rc6-syzkaller #0 [ 66.354485][ T8736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.364552][ T8736] RIP: 0010:netem_enqueue+0x154e/0x3560 [ 66.370073][ T8736] Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 48 92 92 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 49 01 d6 4c 89 f1 48 c1 e9 03 [ 66.389661][ T8736] RSP: 0018:ffffc90001acf680 EFLAGS: 00010246 [ 66.395716][ T8736] RAX: 000000008894d818 RBX: 0000000000000080 RCX: 0000000000000000 [ 66.403707][ T8736] RDX: 0000000000000000 RSI: ffff88801d5d2640 RDI: ffff88801d5d26b4 [ 66.411663][ T8736] RBP: ffff88801cc0a000 R08: ffff88801d5d2710 R09: ffffffff8ceced8f [ 66.419611][ T8736] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 66.427560][ T8736] R13: ffff88801cc0a330 R14: ffff88801ccf8000 R15: 0000000000000000 [ 66.435543][ T8736] FS: 00007f81ff7f9700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 66.444452][ T8736] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.451019][ T8736] CR2: 00000000200001c0 CR3: 0000000014903000 CR4: 00000000001506f0 [ 66.458980][ T8736] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.466925][ T8736] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.474868][ T8736] Call Trace: [ 66.478149][ T8736] ? lock_release+0x710/0x710 [ 66.482801][ T8736] ? do_raw_spin_lock+0x120/0x2b0 [ 66.487814][ T8736] ? netem_dump+0x1120/0x1120 [ 66.492464][ T8736] ? rwlock_bug.part.0+0x90/0x90 [ 66.497388][ T8736] __dev_queue_xmit+0x1913/0x2dd0 [ 66.502389][ T8736] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 66.507662][ T8736] ? memcpy+0x39/0x60 [ 66.511633][ T8736] ? memcpy+0x39/0x60 [ 66.515587][ T8736] ? __skb_clone+0x586/0x770 [ 66.520150][ T8736] netlink_deliver_tap+0x92e/0xb70 [ 66.525236][ T8736] netlink_unicast+0x5e5/0x7d0 [ 66.529984][ T8736] ? netlink_attachskb+0x810/0x810 [ 66.535084][ T8736] ? __check_object_size+0x30/0x3f0 [ 66.540266][ T8736] netlink_sendmsg+0x856/0xd90 [ 66.545005][ T8736] ? netlink_unicast+0x7d0/0x7d0 [ 66.549918][ T8736] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 66.555174][ T8736] ? netlink_unicast+0x7d0/0x7d0 [ 66.560082][ T8736] sock_sendmsg+0xcf/0x120 [ 66.564483][ T8736] ____sys_sendmsg+0x6e8/0x810 [ 66.569229][ T8736] ? kernel_sendmsg+0x50/0x50 [ 66.573893][ T8736] ? do_recvmmsg+0x6c0/0x6c0 [ 66.578460][ T8736] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.584429][ T8736] ___sys_sendmsg+0xf3/0x170 [ 66.589002][ T8736] ? sendmsg_copy_msghdr+0x160/0x160 [ 66.594272][ T8736] ? __fget_files+0x272/0x400 [ 66.598933][ T8736] ? lock_downgrade+0x6d0/0x6d0 [ 66.603767][ T8736] ? percpu_counter_add_batch+0xbd/0x180 [ 66.609375][ T8736] ? __fget_files+0x294/0x400 [ 66.614026][ T8736] ? __fget_light+0xea/0x280 [ 66.618598][ T8736] __sys_sendmsg+0xe5/0x1b0 [ 66.623091][ T8736] ? __sys_sendmsg_sock+0xb0/0xb0 [ 66.628103][ T8736] ? __do_sys_futex+0x2a2/0x470 [ 66.632954][ T8736] ? syscall_enter_from_user_mode+0x1d/0x50 [ 66.638821][ T8736] do_syscall_64+0x2d/0x70 [ 66.643224][ T8736] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.649092][ T8736] RIP: 0033:0x44a3f9 [ 66.652965][ T8736] Code: e8 cc 0c 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db 03 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 66.672547][ T8736] RSP: 002b:00007f81ff7f8db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 66.680937][ T8736] RAX: ffffffffffffffda RBX: 00000000006dfc48 RCX: 000000000044a3f9 [ 66.688896][ T8736] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 [ 66.696855][ T8736] RBP: 00000000006dfc40 R08: 0000000000000000 R09: 0000000000000000 [ 66.704802][ T8736] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dfc4c [ 66.712763][ T8736] R13: 00007ffded0cce8f R14: 00007f81ff7f99c0 R15: 00000000006dfc4c [ 66.720722][ T8736] Modules linked in: [ 66.724654][ T8736] ---[ end trace f4e58fe8e2c3384f ]--- [ 66.730096][ T8736] RIP: 0010:netem_enqueue+0x154e/0x3560 [ 66.735651][ T8736] Code: 74 1f 4c 89 44 24 20 89 4c 24 18 89 44 24 10 e8 48 92 92 fa 4c 8b 44 24 20 8b 4c 24 18 8b 44 24 10 48 8b 34 24 31 d2 2b 4e 74 f1 48 b8 00 00 00 00 00 fc ff df 49 01 d6 4c 89 f1 48 c1 e9 03 [ 66.755384][ T8736] RSP: 0018:ffffc90001acf680 EFLAGS: 00010246 [ 66.761429][ T8736] RAX: 000000008894d818 RBX: 0000000000000080 RCX: 0000000000000000 [ 66.769405][ T8736] RDX: 0000000000000000 RSI: ffff88801d5d2640 RDI: ffff88801d5d26b4 [ 66.777379][ T8736] RBP: ffff88801cc0a000 R08: ffff88801d5d2710 R09: ffffffff8ceced8f [ 66.785360][ T8736] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 66.793308][ T8736] R13: ffff88801cc0a330 R14: ffff88801ccf8000 R15: 0000000000000000 [ 66.801273][ T8736] FS: 00007f81ff7f9700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 66.810196][ T8736] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.816780][ T8736] CR2: 00000000200001c0 CR3: 0000000014903000 CR4: 00000000001506f0 [ 66.824756][ T8736] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.832714][ T8736] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.840691][ T8736] Kernel panic - not syncing: Fatal exception in interrupt [ 66.848371][ T8736] Kernel Offset: disabled [ 66.852685][ T8736] Rebooting in 86400 seconds..