[ OK ] Started Getty on tty3. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.23' (ECDSA) to the list of known hosts. syzkaller login: [ 477.959747][ T6843] IPVS: ftp: loaded support on port[0] = 21 [ 478.061289][ T6843] chnl_net:caif_netlink_parms(): no params data found [ 478.117494][ T6843] bridge0: port 1(bridge_slave_0) entered blocking state [ 478.124977][ T6843] bridge0: port 1(bridge_slave_0) entered disabled state [ 478.134151][ T6843] device bridge_slave_0 entered promiscuous mode [ 478.144110][ T6843] bridge0: port 2(bridge_slave_1) entered blocking state [ 478.151206][ T6843] bridge0: port 2(bridge_slave_1) entered disabled state [ 478.159882][ T6843] device bridge_slave_1 entered promiscuous mode [ 478.179868][ T6843] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 478.190953][ T6843] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 478.214508][ T6843] team0: Port device team_slave_0 added [ 478.221836][ T6843] team0: Port device team_slave_1 added [ 478.240886][ T6843] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 478.247940][ T6843] 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. [ 478.273949][ T6843] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 478.286259][ T6843] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 478.293381][ T6843] 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. [ 478.319469][ T6843] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 478.346830][ T6843] device hsr_slave_0 entered promiscuous mode [ 478.353603][ T6843] device hsr_slave_1 entered promiscuous mode [ 478.448222][ T6843] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 478.458629][ T6843] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 478.469259][ T6843] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 478.480444][ T6843] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 478.505667][ T6843] bridge0: port 2(bridge_slave_1) entered blocking state [ 478.512870][ T6843] bridge0: port 2(bridge_slave_1) entered forwarding state [ 478.520506][ T6843] bridge0: port 1(bridge_slave_0) entered blocking state [ 478.527662][ T6843] bridge0: port 1(bridge_slave_0) entered forwarding state [ 478.574200][ T6843] 8021q: adding VLAN 0 to HW filter on device bond0 [ 478.588255][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 478.598680][ T2869] bridge0: port 1(bridge_slave_0) entered disabled state [ 478.607680][ T2869] bridge0: port 2(bridge_slave_1) entered disabled state [ 478.616595][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 478.629824][ T6843] 8021q: adding VLAN 0 to HW filter on device team0 [ 478.641922][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 478.650511][ T2585] bridge0: port 1(bridge_slave_0) entered blocking state [ 478.657639][ T2585] bridge0: port 1(bridge_slave_0) entered forwarding state [ 478.672951][ T7052] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 478.681780][ T7052] bridge0: port 2(bridge_slave_1) entered blocking state [ 478.688915][ T7052] bridge0: port 2(bridge_slave_1) entered forwarding state [ 478.715440][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 478.725184][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 478.734894][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 478.744091][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 478.753649][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 478.765515][ T6843] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 478.782695][ T7052] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 478.790114][ T7052] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 478.804850][ T6843] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 478.824585][ T7052] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 478.845668][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 478.854453][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 478.862122][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 478.874235][ T6843] device veth0_vlan entered promiscuous mode [ 478.887159][ T6843] device veth1_vlan entered promiscuous mode [ 478.909122][ T7052] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 478.918630][ T7052] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 478.928701][ T7052] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 478.939696][ T6843] device veth0_macvtap entered promiscuous mode [ 478.950625][ T6843] device veth1_macvtap entered promiscuous mode [ 478.969288][ T6843] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 478.977417][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 478.987859][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 479.000176][ T6843] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 479.008559][ T2585] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 479.020938][ T6843] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 479.030038][ T6843] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 479.039198][ T6843] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 479.048227][ T6843] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 479.109740][ C0] hrtimer: interrupt took 18040217 ns [ 505.901283][ T0] NOHZ: local_softirq_pending 08 [ 524.708488][ T0] NOHZ: local_softirq_pending 08 [ 607.717228][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 607.723984][ C0] rcu: 0-....: (1 ticks this GP) idle=4ae/0/0x1 softirq=7665/7665 fqs=3 [ 607.733072][ C0] (t=11294 jiffies g=9289 q=363) [ 607.760242][ T0] NOHZ: local_softirq_pending 08