Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 22.531264][ C1] random: crng init done [ 22.535702][ C1] random: 7 urandom warning(s) missed due to ratelimiting [ 29.327688][ T28] audit: type=1400 audit(1604759270.786:8): avc: denied { execmem } for pid=6816 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 29.332654][ T6817] IPVS: ftp: loaded support on port[0] = 21 [ 29.610467][ T6803] can: request_module (can-proto-0) failed. [ 30.369274][ T6803] can: request_module (can-proto-0) failed. [ 30.377426][ T6803] can: request_module (can-proto-0) failed. [ 30.397205][ T28] audit: type=1400 audit(1604759271.857:9): avc: denied { create } for pid=6798 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 Warning: Permanently added '10.128.0.205' (ECDSA) to the list of known hosts. 2020/11/07 14:27:58 parsed 1 programs 2020/11/07 14:27:58 executed programs: 0 [ 37.361158][ T28] audit: type=1400 audit(1604759278.821:10): avc: denied { execmem } for pid=6941 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 37.393836][ T6943] IPVS: ftp: loaded support on port[0] = 21 [ 37.433626][ T6954] IPVS: ftp: loaded support on port[0] = 21 [ 37.435930][ T6946] IPVS: ftp: loaded support on port[0] = 21 [ 37.458540][ T6947] IPVS: ftp: loaded support on port[0] = 21 [ 37.497898][ T6965] IPVS: ftp: loaded support on port[0] = 21 [ 37.520572][ T6995] IPVS: ftp: loaded support on port[0] = 21 [ 37.542989][ T6943] chnl_net:caif_netlink_parms(): no params data found [ 37.595402][ T6954] chnl_net:caif_netlink_parms(): no params data found [ 37.608952][ T6946] chnl_net:caif_netlink_parms(): no params data found [ 37.627515][ T6947] chnl_net:caif_netlink_parms(): no params data found [ 37.660767][ T6965] chnl_net:caif_netlink_parms(): no params data found [ 37.676087][ T6943] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.683383][ T6943] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.693840][ T6943] device bridge_slave_0 entered promiscuous mode [ 37.716237][ T6943] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.723314][ T6943] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.732612][ T6943] device bridge_slave_1 entered promiscuous mode [ 37.754865][ T6954] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.761924][ T6954] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.772436][ T6954] device bridge_slave_0 entered promiscuous mode [ 37.781465][ T6943] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 37.794157][ T6947] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.802395][ T6947] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.809928][ T6947] device bridge_slave_0 entered promiscuous mode [ 37.817823][ T6995] chnl_net:caif_netlink_parms(): no params data found [ 37.830579][ T6954] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.838280][ T6954] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.845724][ T6954] device bridge_slave_1 entered promiscuous mode [ 37.852925][ T6943] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 37.863280][ T6947] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.870452][ T6947] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.877885][ T6947] device bridge_slave_1 entered promiscuous mode [ 37.899923][ T6943] team0: Port device team_slave_0 added [ 37.911443][ T6947] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 37.921713][ T6946] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.929302][ T6946] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.936985][ T6946] device bridge_slave_0 entered promiscuous mode [ 37.944829][ T6946] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.951862][ T6946] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.959534][ T6946] device bridge_slave_1 entered promiscuous mode [ 37.968294][ T6954] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 37.980603][ T6943] team0: Port device team_slave_1 added [ 37.986951][ T6947] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.004547][ T6995] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.012299][ T6995] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.020819][ T6995] device bridge_slave_0 entered promiscuous mode [ 38.028334][ T6954] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.041351][ T6965] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.048870][ T6965] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.056790][ T6965] device bridge_slave_0 entered promiscuous mode [ 38.066845][ T6943] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.073790][ T6943] 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. [ 38.099756][ T6943] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.112373][ T6947] team0: Port device team_slave_0 added [ 38.119335][ T6946] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.128944][ T6995] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.136642][ T6995] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.144021][ T6995] device bridge_slave_1 entered promiscuous mode [ 38.155479][ T6965] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.162513][ T6965] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.172753][ T6965] device bridge_slave_1 entered promiscuous mode [ 38.179796][ T6943] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.186862][ T6943] 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. [ 38.213186][ T6943] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.225137][ T6947] team0: Port device team_slave_1 added [ 38.231764][ T6946] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.241710][ T6995] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.251687][ T6954] team0: Port device team_slave_0 added [ 38.259066][ T6954] team0: Port device team_slave_1 added [ 38.270933][ T6947] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.278052][ T6947] 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. [ 38.305280][ T6947] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.323476][ T6946] team0: Port device team_slave_0 added [ 38.329873][ T6995] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.346517][ T6954] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.353448][ T6954] 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. [ 38.379938][ T6954] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.392277][ T6954] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.399485][ T6954] 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. [ 38.425794][ T6954] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.440232][ T6947] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.447287][ T6947] 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. [ 38.473494][ T6947] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.484878][ T6946] team0: Port device team_slave_1 added [ 38.496604][ T6965] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.506658][ T6965] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.517085][ T6943] device hsr_slave_0 entered promiscuous mode [ 38.523615][ T6943] device hsr_slave_1 entered promiscuous mode [ 38.537079][ T6947] device hsr_slave_0 entered promiscuous mode [ 38.544185][ T6947] device hsr_slave_1 entered promiscuous mode [ 38.551355][ T6947] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 38.559403][ T6947] Cannot create hsr debugfs directory [ 38.565818][ T6946] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.572734][ T6946] 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. [ 38.599702][ T6946] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.616799][ T6995] team0: Port device team_slave_0 added [ 38.623958][ T6995] team0: Port device team_slave_1 added [ 38.631747][ T6954] device hsr_slave_0 entered promiscuous mode [ 38.638378][ T6954] device hsr_slave_1 entered promiscuous mode [ 38.645037][ T6954] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 38.652736][ T6954] Cannot create hsr debugfs directory [ 38.665624][ T6946] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.672593][ T6946] 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. [ 38.700084][ T6946] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.717103][ T6995] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.724208][ T6995] 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. [ 38.750301][ T6995] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.762738][ T6995] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.769742][ T6995] 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. [ 38.796429][ T6995] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.819931][ T6965] team0: Port device team_slave_0 added [ 38.827444][ T6965] team0: Port device team_slave_1 added [ 38.839442][ T6995] device hsr_slave_0 entered promiscuous mode [ 38.846029][ T6995] device hsr_slave_1 entered promiscuous mode [ 38.852348][ T6995] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 38.860771][ T6995] Cannot create hsr debugfs directory [ 38.871808][ T6946] device hsr_slave_0 entered promiscuous mode [ 38.878709][ T6946] device hsr_slave_1 entered promiscuous mode [ 38.885283][ T6946] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 38.892825][ T6946] Cannot create hsr debugfs directory [ 38.908061][ T6965] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.921811][ T6965] 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. [ 38.947971][ T6965] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.959923][ T6965] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.966927][ T6965] 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. [ 38.993491][ T6965] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.050462][ T6943] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 39.069310][ T6965] device hsr_slave_0 entered promiscuous mode [ 39.075787][ T6965] device hsr_slave_1 entered promiscuous mode [ 39.082122][ T6965] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 39.090593][ T6965] Cannot create hsr debugfs directory [ 39.101619][ T6943] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 39.117665][ T6947] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 39.138420][ T6943] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 39.149950][ T6943] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 39.159977][ T6947] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 39.173768][ T6947] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 39.201131][ T6947] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 39.211702][ T6946] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.219184][ T6995] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 39.246099][ T6946] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.254038][ T6995] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 39.267909][ T6954] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 39.281734][ T6943] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.291199][ T6946] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.300182][ T6995] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 39.309263][ T6995] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 39.317976][ T6954] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 39.331273][ T6954] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 39.347785][ T6946] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.360811][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.369937][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.377843][ T6954] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 39.390194][ T6943] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.400058][ T6965] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 39.408798][ T6965] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 39.417319][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.426516][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.434878][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.441944][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.451876][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.466871][ T6965] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 39.475993][ T6965] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 39.489704][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 39.498386][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.506829][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.513951][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.521354][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 39.539486][ T6943] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 39.550150][ T6943] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 39.562643][ T6995] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.572374][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 39.581285][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 39.591988][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.600044][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 39.608280][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.616312][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.624703][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.632725][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.652259][ T6954] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.662699][ T6947] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.671262][ T6946] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.681030][ T6995] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.691521][ T6954] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.698795][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.707050][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.715039][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.722555][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.730176][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.743741][ T6943] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.760975][ T6954] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 39.773024][ T6954] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 39.785867][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.793340][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.801478][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.809886][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.818548][ T3131] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.825678][ T3131] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.833150][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 39.841674][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.849995][ T3131] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.857205][ T3131] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.864837][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 39.872961][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 39.881305][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 39.889744][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.897960][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 39.906333][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.914511][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 39.922495][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.930619][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 39.938772][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.948686][ T6947] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.962160][ T6954] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.969605][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.977396][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.985377][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.992664][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.001199][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.009608][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.016673][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.024392][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.031777][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.039339][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 40.047663][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.055783][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.062791][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.070369][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.078793][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.088123][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.095202][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.102519][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.110048][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.118907][ T6946] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.136343][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 40.144177][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 40.151738][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.159493][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.167717][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.176064][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 40.184595][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.192815][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 40.200911][ T2635] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.213497][ T6995] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 40.225176][ T6995] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.237523][ T6965] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.249816][ T6943] device veth0_vlan entered promiscuous mode [ 40.260348][ T6946] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 40.276978][ T6946] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.288832][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.296324][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.304751][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.312910][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.322188][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.330630][ T3131] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.337703][ T3131] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.345477][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 40.354111][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.362206][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 40.371760][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.380053][ T3131] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.387117][ T3131] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.394631][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 40.402793][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.411003][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.419227][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 40.427626][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.435860][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.444198][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 40.452156][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.460098][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 40.468548][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.477894][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 40.486255][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.494952][ T3131] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.501958][ T3131] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.509509][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.517890][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 40.526219][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.534315][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 40.542476][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.550581][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 40.558674][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.571366][ T6995] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 40.582399][ T6943] device veth1_vlan entered promiscuous mode [ 40.597367][ T6946] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 40.608995][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 40.617999][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 40.625842][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.633220][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.640684][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.648138][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.655814][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.664233][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.671546][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.679017][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 40.687424][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.695486][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 40.703674][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.711813][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 40.720219][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.728657][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.736259][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.744605][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.754676][ T6965] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.761418][ T6947] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 40.772471][ T6947] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.788634][ T6943] device veth0_macvtap entered promiscuous mode [ 40.796747][ T6943] device veth1_macvtap entered promiscuous mode [ 40.809086][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 40.817275][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.829759][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.837603][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.845493][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 40.853470][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.861724][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 40.870242][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.880020][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 40.887804][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 40.896038][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.908634][ T6947] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 40.916547][ T6954] device veth0_vlan entered promiscuous mode [ 40.926856][ T6943] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 40.937096][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.946412][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 40.954831][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.962311][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.970204][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.978119][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.986051][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.994535][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.002631][ T48] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.009681][ T48] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.017085][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.025465][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.033882][ T48] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.040913][ T48] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.048287][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 41.056603][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 41.064948][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 41.073412][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 41.085447][ T6943] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 41.094550][ T6943] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.103323][ T6943] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.112626][ T6943] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.121413][ T6943] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.134230][ T6954] device veth1_vlan entered promiscuous mode [ 41.145456][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 41.153119][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 41.161615][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 41.170143][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 41.183062][ T6946] device veth0_vlan entered promiscuous mode [ 41.198838][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 41.206702][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 41.216514][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.225318][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 41.233076][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.241220][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 41.249783][ T8197] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.258384][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 41.268957][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 41.280041][ T6965] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 41.290943][ T6965] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 41.307375][ T6946] device veth1_vlan entered promiscuous mode [ 41.319559][ T6947] device veth0_vlan entered promiscuous mode [ 41.335442][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 41.348066][ T8212] ------------[ cut here ]------------ [ 41.354896][ T8212] Trying to write to read-only block-device nullb0 (partno 0) [ 41.362459][ T8212] WARNING: CPU: 1 PID: 8212 at block/blk-core.c:706 submit_bio_checks+0x23e/0x800 [ 41.372898][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 41.377141][ T8212] Modules linked in: [ 41.381170][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.389025][ T8212] CPU: 0 PID: 8212 Comm: syz-executor.2 Not tainted 5.10.0-rc2-syzkaller #0 [ 41.393662][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 41.401479][ T8212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.410187][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.424343][ T8212] RIP: 0010:submit_bio_checks+0x23e/0x800 [ 41.428419][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 41.433256][ T8212] Code: a2 6c 05 00 00 48 8d 75 b0 48 89 df c6 05 20 60 a7 02 01 e8 14 88 ff ff 48 c7 c7 d8 2e f6 83 48 89 c6 44 89 e2 e8 16 29 36 01 <0f> 0b 48 8b 53 08 8b 43 28 c1 e8 09 85 c0 48 8b 72 40 0f 84 14 ff [ 41.445711][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 41.460947][ T8212] RSP: 0018:ffffc90002e9f858 EFLAGS: 00010282 [ 41.474106][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 41.475103][ T8212] RAX: 0000000000000000 RBX: ffff888102374700 RCX: 0000000000000001 [ 41.486630][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 41.490800][ T8212] RDX: 0000000080000001 RSI: ffffffff8406d2a1 RDI: 00000000ffffffff [ 41.499888][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 41.506600][ T8212] RBP: ffffc90002e9f8b0 R08: 0000000000000001 R09: 0000000000000001 [ 41.514993][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.526252][ T8212] R10: ffffc90002e9f688 R11: ffffc90002e9f680 R12: 0000000000000000 [ 41.530880][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 41.547047][ T8212] R13: ffffc90002e9fc08 R14: ffff88810179eea0 R15: ffff88810179eea0 [ 41.547048][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 41.547218][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 41.559822][ T8212] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 [ 41.563128][ T3131] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 41.569489][ T8212] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.600921][ T8212] CR2: 0000559691292d00 CR3: 000000010e837000 CR4: 00000000001506f0 [ 41.601133][ T6954] device veth0_macvtap entered promiscuous mode [ 41.613522][ T8212] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.623130][ T8212] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.625519][ T6946] device veth0_macvtap entered promiscuous mode [ 41.638586][ T8212] Call Trace: [ 41.641876][ T8212] submit_bio_noacct+0x37/0x640 [ 41.645046][ T6947] device veth1_vlan entered promiscuous mode [ 41.647596][ T8212] ? submit_bio+0x3e/0x190 [ 41.658775][ T6995] device veth0_vlan entered promiscuous mode [ 41.665125][ T8212] submit_bio+0x3e/0x190 [ 41.669369][ T8212] ? guard_bio_eod+0x87/0x130 [ 41.674366][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 41.681853][ T8212] submit_bh_wbc+0x168/0x190 [ 41.682102][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 41.687536][ T8212] __block_write_full_page+0x225/0x5b0 [ 41.698751][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 41.700213][ T8212] ? end_buffer_write_sync+0x40/0x40 [ 41.709444][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 41.714494][ T8212] ? bdev_evict_inode+0x1a0/0x1a0 [ 41.725492][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 41.726731][ T8212] __writepage+0xe/0x60 [ 41.738525][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 41.738938][ T8212] write_cache_pages+0x221/0x540 [ 41.747001][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 41.751774][ T8212] ? __wb_calc_thresh+0x120/0x120 [ 41.763695][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.765015][ T8212] ? __lock_acquire+0x4ea/0x1770 [ 41.773056][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 41.778040][ T8212] generic_writepages+0x54/0x90 [ 41.791189][ T8212] do_writepages+0x39/0xe0 [ 41.791976][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.796525][ T8212] __filemap_fdatawrite_range+0xc2/0x100 [ 41.808801][ T6954] device veth1_macvtap entered promiscuous mode [ 41.809397][ T8212] filemap_write_and_wait_range+0x36/0x90 [ 41.822068][ T6946] device veth1_macvtap entered promiscuous mode [ 41.828999][ T8212] __blkdev_put+0x19e/0x220 [ 41.834030][ T8212] blkdev_close+0x1f/0x30 [ 41.837902][ T6947] device veth0_macvtap entered promiscuous mode [ 41.838524][ T8212] __fput+0xaa/0x250 [ 41.847040][ T6995] device veth1_vlan entered promiscuous mode [ 41.854739][ T8212] task_work_run+0x68/0xb0 [ 41.859358][ T8212] do_exit+0x3aa/0xc80 [ 41.863685][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 41.871407][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 41.878978][ T8212] ? find_held_lock+0x2d/0x90 [ 41.884140][ T8212] do_group_exit+0x42/0xb0 [ 41.888558][ T8212] get_signal+0x17c/0xc70 [ 41.892959][ T8212] arch_do_signal+0x2b/0x900 [ 41.897945][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 41.898292][ T8212] ? __might_fault+0x2f/0x80 [ 41.905788][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 41.914964][ T8212] exit_to_user_mode_prepare+0x1a2/0x220 [ 41.917976][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 41.926155][ T8212] syscall_exit_to_user_mode+0x7a/0x2c0 [ 41.931068][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 41.936085][ T8212] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.936092][ T8212] RIP: 0033:0x45cba9 [ 41.948514][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 41.949490][ T8212] Code: Unable to access opcode bytes at RIP 0x45cb7f. [ 41.954473][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 41.960984][ T8212] RSP: 002b:00007f07ed5a3cf8 EFLAGS: 00000246 [ 41.968381][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 41.979161][ T8212] ORIG_RAX: 00000000000000ca [ 41.982380][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 41.990238][ T8212] RAX: fffffffffffffe00 RBX: 000000000078bf08 RCX: 000000000045cba9 [ 42.002096][ T6954] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 42.002498][ T8212] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000078bf08 [ 42.012089][ T6954] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.026507][ T8212] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 42.032038][ T6954] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 42.040498][ T8212] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c [ 42.055409][ T6946] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 42.056379][ T8212] R13: 00007ffecf084d1f R14: 00007f07ed5a49c0 R15: 000000000078bf0c [ 42.068646][ T6946] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.074550][ T8212] Kernel panic - not syncing: panic_on_warn set ... [ 42.082499][ T6946] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 42.091941][ T8212] CPU: 1 PID: 8212 Comm: syz-executor.2 Not tainted 5.10.0-rc2-syzkaller #0 [ 42.091944][ T8212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.091946][ T8212] Call Trace: [ 42.091955][ T8212] dump_stack+0xa3/0xc8 [ 42.091961][ T8212] panic+0x135/0x31a [ 42.091971][ T8212] ? submit_bio_checks+0x23e/0x800 [ 42.091975][ T8212] __warn.cold.13+0x4b/0x4b [ 42.091978][ T8212] ? submit_bio_checks+0x23e/0x800 [ 42.091983][ T8212] report_bug+0xc0/0xf0 [ 42.091992][ T8212] handle_bug+0x35/0x90 [ 42.091995][ T8212] exc_invalid_op+0x13/0x60 [ 42.099905][ T6946] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.108950][ T8212] asm_exc_invalid_op+0x12/0x20 [ 42.108957][ T8212] RIP: 0010:submit_bio_checks+0x23e/0x800 [ 42.108961][ T8212] Code: a2 6c 05 00 00 48 8d 75 b0 48 89 df c6 05 20 60 a7 02 01 e8 14 88 ff ff 48 c7 c7 d8 2e f6 83 48 89 c6 44 89 e2 e8 16 29 36 01 <0f> 0b 48 8b 53 08 8b 43 28 c1 e8 09 85 c0 48 8b 72 40 0f 84 14 ff [ 42.108963][ T8212] RSP: 0018:ffffc90002e9f858 EFLAGS: 00010282 [ 42.108968][ T8212] RAX: 0000000000000000 RBX: ffff888102374700 RCX: 0000000000000001 [ 42.108970][ T8212] RDX: 0000000080000001 RSI: ffffffff8406d2a1 RDI: 00000000ffffffff [ 42.108972][ T8212] RBP: ffffc90002e9f8b0 R08: 0000000000000001 R09: 0000000000000001 [ 42.108974][ T8212] R10: ffffc90002e9f688 R11: ffffc90002e9f680 R12: 0000000000000000 [ 42.108976][ T8212] R13: ffffc90002e9fc08 R14: ffff88810179eea0 R15: ffff88810179eea0 [ 42.108987][ T8212] ? submit_bio_checks+0x23e/0x800 [ 42.119765][ T6946] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 42.127986][ T8212] submit_bio_noacct+0x37/0x640 [ 42.127996][ T8212] ? submit_bio+0x3e/0x190 [ 42.127999][ T8212] submit_bio+0x3e/0x190 [ 42.128006][ T8212] ? guard_bio_eod+0x87/0x130 [ 42.128012][ T8212] submit_bh_wbc+0x168/0x190 [ 42.128017][ T8212] __block_write_full_page+0x225/0x5b0 [ 42.134038][ T6965] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.135417][ T8212] ? end_buffer_write_sync+0x40/0x40 [ 42.144493][ T6947] device veth1_macvtap entered promiscuous mode [ 42.148852][ T8212] ? bdev_evict_inode+0x1a0/0x1a0 [ 42.159656][ T6995] device veth0_macvtap entered promiscuous mode [ 42.163026][ T8212] __writepage+0xe/0x60 [ 42.169795][ T6995] device veth1_macvtap entered promiscuous mode [ 42.177290][ T8212] write_cache_pages+0x221/0x540 [ 42.177296][ T8212] ? __wb_calc_thresh+0x120/0x120 [ 42.177303][ T8212] ? __lock_acquire+0x4ea/0x1770 [ 42.177310][ T8212] generic_writepages+0x54/0x90 [ 42.177317][ T8212] do_writepages+0x39/0xe0 [ 42.177326][ T8212] __filemap_fdatawrite_range+0xc2/0x100 [ 42.177335][ T8212] filemap_write_and_wait_range+0x36/0x90 [ 42.187268][ T6995] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 42.187864][ T8212] __blkdev_put+0x19e/0x220 [ 42.207483][ T6995] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.213503][ T8212] blkdev_close+0x1f/0x30 [ 42.213507][ T8212] __fput+0xaa/0x250 [ 42.213514][ T8212] task_work_run+0x68/0xb0 [ 42.213521][ T8212] do_exit+0x3aa/0xc80 [ 42.213528][ T8212] ? find_held_lock+0x2d/0x90 [ 42.213535][ T8212] do_group_exit+0x42/0xb0 [ 42.222519][ T6995] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 42.229528][ T8212] get_signal+0x17c/0xc70 [ 42.229538][ T8212] arch_do_signal+0x2b/0x900 [ 42.229543][ T8212] ? __might_fault+0x2f/0x80 [ 42.229552][ T8212] exit_to_user_mode_prepare+0x1a2/0x220 [ 42.229558][ T8212] syscall_exit_to_user_mode+0x7a/0x2c0 [ 42.229564][ T8212] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.238410][ T6995] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 42.245487][ T8212] RIP: 0033:0x45cba9 [ 42.245491][ T8212] Code: Unable to access opcode bytes at RIP 0x45cb7f. [ 42.245493][ T8212] RSP: 002b:00007f07ed5a3cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 42.245497][ T8212] RAX: fffffffffffffe00 RBX: 000000000078bf08 RCX: 000000000045cba9 [ 42.245499][ T8212] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000078bf08 [ 42.245501][ T8212] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 42.245503][ T8212] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c [ 42.245505][ T8212] R13: 00007ffecf084d1f R14: 00007f07ed5a49c0 R15: 000000000078bf0c [ 42.254936][ T8212] Kernel Offset: disabled [ 42.534052][ T8212] Rebooting in 86400 seconds..