Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 61.111546] audit: type=1400 audit(1591304739.677:8): avc: denied { execmem } for pid=6326 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 61.372734] IPVS: ftp: loaded support on port[0] = 21 [ 62.575652] can: request_module (can-proto-0) failed. [ 62.584554] can: request_module (can-proto-0) failed. [ 62.594361] can: request_module (can-proto-0) failed. [ 62.619482] audit: type=1400 audit(1591304741.187:9): avc: denied { create } for pid=6307 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 '10.128.0.234' (ECDSA) to the list of known hosts. 2020/06/04 21:05:48 parsed 1 programs 2020/06/04 21:05:48 executed programs: 0 [ 70.214789] audit: type=1400 audit(1591304748.788:10): avc: denied { execmem } for pid=6448 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 70.253713] IPVS: ftp: loaded support on port[0] = 21 [ 70.659648] IPVS: ftp: loaded support on port[0] = 21 [ 70.720290] chnl_net:caif_netlink_parms(): no params data found [ 70.750692] IPVS: ftp: loaded support on port[0] = 21 [ 70.827746] chnl_net:caif_netlink_parms(): no params data found [ 70.856997] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.864270] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.871141] device bridge_slave_0 entered promiscuous mode [ 70.878828] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.885449] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.892391] device bridge_slave_1 entered promiscuous mode [ 70.919098] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 70.928502] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 70.937657] IPVS: ftp: loaded support on port[0] = 21 [ 70.958081] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 70.966593] team0: Port device team_slave_0 added [ 70.981622] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 70.989780] team0: Port device team_slave_1 added [ 71.000419] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.008448] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.015784] device bridge_slave_0 entered promiscuous mode [ 71.023504] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.029834] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.037575] device bridge_slave_1 entered promiscuous mode [ 71.060249] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.066593] 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. [ 71.092478] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.108220] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.115766] 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. [ 71.142343] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.160685] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 71.169278] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 71.181521] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 71.216544] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 71.270570] IPVS: ftp: loaded support on port[0] = 21 [ 71.284891] device hsr_slave_0 entered promiscuous mode [ 71.323047] device hsr_slave_1 entered promiscuous mode [ 71.376454] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 71.384276] team0: Port device team_slave_0 added [ 71.391603] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 71.398452] chnl_net:caif_netlink_parms(): no params data found [ 71.415734] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 71.422762] team0: Port device team_slave_1 added [ 71.444806] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 71.452748] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.458975] 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. [ 71.484287] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.512960] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.519208] 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. [ 71.545056] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.566873] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 71.576021] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 71.684252] device hsr_slave_0 entered promiscuous mode [ 71.721636] device hsr_slave_1 entered promiscuous mode [ 71.785369] IPVS: ftp: loaded support on port[0] = 21 [ 71.790882] chnl_net:caif_netlink_parms(): no params data found [ 71.814157] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 71.822405] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 71.866079] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.872878] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.879737] device bridge_slave_0 entered promiscuous mode [ 71.889241] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.895664] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.902573] device bridge_slave_1 entered promiscuous mode [ 71.985210] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 72.029231] chnl_net:caif_netlink_parms(): no params data found [ 72.040511] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 72.066060] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 72.075750] team0: Port device team_slave_0 added [ 72.093489] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 72.100520] team0: Port device team_slave_1 added [ 72.156314] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.164488] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.172790] device bridge_slave_0 entered promiscuous mode [ 72.180048] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.187319] 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. [ 72.213155] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.226907] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.233237] 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. [ 72.259186] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.270641] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 72.286402] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.293489] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.300800] device bridge_slave_1 entered promiscuous mode [ 72.311734] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 72.359864] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 72.374640] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 72.397569] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.404012] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.410885] device bridge_slave_0 entered promiscuous mode [ 72.428178] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.435014] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.443009] device bridge_slave_1 entered promiscuous mode [ 72.449136] chnl_net:caif_netlink_parms(): no params data found [ 72.472589] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 72.514282] device hsr_slave_0 entered promiscuous mode [ 72.552000] device hsr_slave_1 entered promiscuous mode [ 72.617893] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 72.631390] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 72.657288] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 72.666981] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 72.676788] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 72.689620] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 72.697788] team0: Port device team_slave_0 added [ 72.725619] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.732327] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.739399] device bridge_slave_0 entered promiscuous mode [ 72.747280] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.754286] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.763207] device bridge_slave_1 entered promiscuous mode [ 72.776481] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 72.783746] team0: Port device team_slave_1 added [ 72.794682] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 72.802388] team0: Port device team_slave_0 added [ 72.808013] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 72.815647] team0: Port device team_slave_1 added [ 72.844940] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 72.855586] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 72.886436] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.903856] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.910109] 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. [ 72.936315] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.947432] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.954853] 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. [ 72.983717] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.996152] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 73.012367] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 73.019375] team0: Port device team_slave_0 added [ 73.025593] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.032603] 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. [ 73.058309] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.069663] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.076109] 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. [ 73.101420] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.117940] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 73.126693] team0: Port device team_slave_1 added [ 73.132287] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 73.146222] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 73.158623] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.173026] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 73.185089] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 73.193082] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.199316] 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. [ 73.225306] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.236663] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.244684] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.253166] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 73.259220] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.323967] device hsr_slave_0 entered promiscuous mode [ 73.371472] device hsr_slave_1 entered promiscuous mode [ 73.415768] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 73.423046] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.429276] 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. [ 73.454827] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.467099] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.482542] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 73.524756] device hsr_slave_0 entered promiscuous mode [ 73.561675] device hsr_slave_1 entered promiscuous mode [ 73.601777] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 73.608892] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 73.618262] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 73.629076] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 73.641071] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 73.648636] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 73.662408] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.670413] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.679000] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.685490] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.695197] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 73.708462] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 73.724804] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.733380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.741048] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.749004] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.755394] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.763165] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.770096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.824352] device hsr_slave_0 entered promiscuous mode [ 73.861532] device hsr_slave_1 entered promiscuous mode [ 73.908549] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 73.915204] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.925481] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 73.935189] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 73.943495] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 73.952174] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 73.959138] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.968857] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.977172] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.985234] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.991744] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.015863] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 74.026772] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 74.035434] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 74.044282] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.052609] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.060160] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.068520] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.076809] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.083208] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.120497] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 74.130556] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 74.149340] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.159425] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.167442] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.175694] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.190494] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 74.202389] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 74.210863] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 74.227020] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.235383] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.243781] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.251937] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.259462] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.270474] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 74.296219] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.305472] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.313645] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.322371] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 74.339455] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 74.357964] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 74.367310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.375492] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.383100] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.390478] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.408677] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 74.416757] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 74.423065] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.430984] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.438301] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.446362] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.460242] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 74.469324] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.479995] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 74.486231] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.495773] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 74.509738] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 74.517408] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.530106] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 74.540406] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 74.558349] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 74.565755] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.572839] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.585351] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 74.596956] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 74.603464] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.619073] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.626235] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.638032] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.645498] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 74.656304] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 74.666967] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 74.676726] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 74.688170] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.696959] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.704832] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.711213] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.718188] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.726427] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.733983] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.740304] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.747135] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.753968] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.761753] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.770877] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.785912] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 74.802591] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 74.814027] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 74.822193] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 74.829545] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.837467] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.849046] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.863391] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 74.870773] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 74.882338] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.889966] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.901876] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.908690] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.917557] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 74.927031] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 74.933589] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.940694] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.948768] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.958170] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.968008] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 74.979469] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 74.988764] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 74.996818] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.004745] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.012968] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.020444] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.026831] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.034154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.046511] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.054538] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 75.064715] IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready [ 75.080011] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 75.088247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.096614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.107191] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 75.125982] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 75.133150] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 75.140244] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.148408] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.156179] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.162560] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.169576] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.176528] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.183471] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.190821] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.200020] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 75.209981] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 75.216808] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.225099] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 75.233143] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.240210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.251356] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.260493] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 75.268284] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 75.277945] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 75.289708] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 75.297385] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 75.304827] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 75.313727] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 75.326386] IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready [ 75.333519] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.342227] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.349841] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.356231] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.363557] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.370337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.377380] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 75.385609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.396172] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 75.405011] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 75.413565] IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready [ 75.421451] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 75.427619] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.436401] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.447643] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.456087] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.464327] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.470653] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.477724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.485661] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.493103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.500659] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.507566] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.516863] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 75.525928] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 75.535554] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 75.542490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.550757] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.560604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.569137] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.576917] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.583292] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.591656] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 75.599800] device veth0_vlan entered promiscuous mode [ 75.606947] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 75.617764] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.625494] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.633057] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.640598] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.649983] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.657689] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.664071] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.672280] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 75.682189] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 75.690630] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 75.698012] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 75.704810] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 75.713734] IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready [ 75.720249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.729404] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.737458] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.744282] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.750935] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 75.758442] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.765860] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.772809] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.781126] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 75.792252] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.799352] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 75.808080] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 75.816456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.825470] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.833417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.841647] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.852271] device veth1_vlan entered promiscuous mode [ 75.858027] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 75.868206] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 75.877630] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 75.887258] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 75.897450] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 75.907622] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 75.915303] device veth0_vlan entered promiscuous mode [ 75.922186] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.929473] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.940693] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.948433] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.956722] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.964653] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.972561] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.980135] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.987859] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.995449] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.004808] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 76.016625] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 76.026728] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.035300] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.044317] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.052042] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.059721] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.070354] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 76.083929] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 76.095513] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 76.105629] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 76.113782] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.122711] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.130183] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.138609] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.146695] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.154610] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.163732] device veth1_vlan entered promiscuous mode [ 76.178913] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 76.186521] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 76.194813] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.204534] device veth0_macvtap entered promiscuous mode [ 76.210680] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 76.223267] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 76.231865] device veth1_macvtap entered promiscuous mode [ 76.237858] IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready [ 76.246995] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 76.256843] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 76.266463] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 76.276415] device veth0_macvtap entered promiscuous mode [ 76.283085] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 76.292868] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 76.301620] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.308707] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.316239] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.324040] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.331773] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.339306] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.348058] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.355890] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.363868] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.374246] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 76.385815] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 76.394818] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 76.403769] device veth1_macvtap entered promiscuous mode [ 76.409876] IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready [ 76.416852] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.424514] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.432477] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.442056] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 76.448169] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.459495] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.468677] IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready [ 76.480215] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 76.493645] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 76.502953] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.512926] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 76.520889] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 76.528374] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.538307] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 76.548312] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.564374] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.576385] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 76.583656] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.591589] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 76.600681] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 76.609623] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 76.620147] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 76.631148] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 76.638169] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.646946] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.655048] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.663177] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.669887] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.677013] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.685859] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.699912] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 76.711548] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 76.723545] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 76.736677] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 76.743910] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.751320] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.759613] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.767040] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.775013] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.787523] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.797841] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.850079] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 76.859251] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 76.865982] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 76.906288] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 76.916193] IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready [ 76.930646] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 76.939433] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.950477] IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready [ 76.961224] device veth0_vlan entered promiscuous mode [ 76.970363] device veth1_vlan entered promiscuous mode [ 76.977349] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 76.987663] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.996026] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.004195] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.012240] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.019950] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.035481] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 77.050934] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 77.070543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 77.079675] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.096272] device veth0_macvtap entered promiscuous mode [ 77.103670] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 77.119633] device veth1_macvtap entered promiscuous mode [ 77.136397] IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready [ 77.147263] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready 2020/06/04 21:05:55 executed programs: 6 [ 77.157813] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 77.168741] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 77.180006] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 77.198059] IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready [ 77.210137] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.222912] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 77.230153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 77.238424] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.246293] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.254049] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.263523] device veth0_vlan entered promiscuous mode [ 77.269814] FAULT_INJECTION: forcing a failure. [ 77.269814] name failslab, interval 1, probability 0, space 0, times 1 [ 77.281732] CPU: 1 PID: 7715 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 77.289623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.298959] Call Trace: [ 77.301525] dump_stack+0xf7/0x13b [ 77.305041] should_fail.cold.3+0x105/0x14b [ 77.309337] should_failslab+0xba/0xf0 [ 77.313197] kmem_cache_alloc_node+0x287/0x790 [ 77.317755] __alloc_skb+0x92/0x500 [ 77.321376] ? skb_trim+0x160/0x160 [ 77.324980] ? if_nlmsg_size+0x2d9/0x6f0 [ 77.329013] rtmsg_ifinfo_build_skb+0x68/0x120 [ 77.333571] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 77.338382] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 77.343295] rtnetlink_event+0xc2/0x110 [ 77.347259] notifier_call_chain+0xd6/0x150 [ 77.351571] raw_notifier_call_chain+0x11/0x20 [ 77.357704] call_netdevice_notifiers_info+0x4b/0x60 [ 77.362792] __netdev_upper_dev_link+0x18e/0x1f0 [ 77.367525] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 77.372879] netdev_master_upper_dev_link+0x14/0x20 [ 77.377882] batadv_hardif_enable_interface+0x1f4/0xa10 [ 77.383221] batadv_softif_slave_add+0x7f/0xd0 [ 77.387787] do_set_master+0x163/0x1f0 [ 77.391659] do_setlink+0x9dd/0x2c50 [ 77.395355] ? __lock_acquire+0x6a4/0x4500 [ 77.399571] ? rtnl_register+0x20/0x20 [ 77.403529] ? trace_hardirqs_on+0x10/0x10 [ 77.407735] ? trace_hardirqs_off+0x10/0x10 [ 77.412027] ? __lock_acquire+0x6a4/0x4500 [ 77.416233] ? trace_hardirqs_off+0x10/0x10 [ 77.420536] ? __lock_is_held+0xb5/0x140 [ 77.424657] ? trace_hardirqs_off+0x10/0x10 [ 77.429074] rtnl_newlink+0xe0c/0x1390 [ 77.432939] ? rtnl_link_unregister+0x270/0x270 [ 77.437576] ? finish_task_switch+0x178/0x650 [ 77.442039] ? finish_task_switch+0x14d/0x650 [ 77.446505] ? find_held_lock+0x36/0x1d0 [ 77.450627] ? __mutex_lock+0x8b7/0x14c0 [ 77.454755] ? lock_downgrade+0x7f0/0x7f0 [ 77.458891] ? do_raw_spin_unlock+0x16a/0x250 [ 77.463468] rtnetlink_rcv_msg+0x34c/0x9e0 [ 77.467675] ? rtnl_bridge_getlink+0x760/0x760 [ 77.472238] ? find_held_lock+0x36/0x1d0 [ 77.476281] netlink_rcv_skb+0x133/0x370 [ 77.480402] ? rtnl_bridge_getlink+0x760/0x760 [ 77.484955] ? netlink_ack+0xa00/0xa00 [ 77.488898] ? netlink_deliver_tap+0x8e/0x920 [ 77.493402] rtnetlink_rcv+0x10/0x20 [ 77.497099] netlink_unicast+0x40b/0x600 [ 77.501135] ? netlink_attachskb+0x6d0/0x6d0 [ 77.505619] netlink_sendmsg+0x730/0xbd0 [ 77.510870] ? netlink_unicast+0x600/0x600 [ 77.515082] ? selinux_socket_sendmsg+0x31/0x40 [ 77.519740] ? security_socket_sendmsg+0x6a/0xa0 [ 77.524467] ? netlink_unicast+0x600/0x600 [ 77.528675] sock_sendmsg+0xb5/0xf0 [ 77.532290] ___sys_sendmsg+0x625/0x920 [ 77.536249] ? trace_hardirqs_off+0x10/0x10 [ 77.540797] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 77.545548] ? find_held_lock+0x36/0x1d0 [ 77.549797] ? lock_downgrade+0x7f0/0x7f0 [ 77.553945] ? __fget+0x1ca/0x2f0 [ 77.557771] ? __fget_light+0x166/0x200 [ 77.561726] ? __fdget+0xe/0x10 [ 77.565037] ? sockfd_lookup_light+0x1c/0x150 [ 77.569520] __sys_sendmsg+0xc1/0x140 [ 77.573296] ? SyS_shutdown+0x180/0x180 [ 77.577253] ? __sb_end_write+0xa4/0xd0 [ 77.581209] ? mutex_unlock+0xd/0x10 [ 77.584909] ? do_syscall_64+0x4c/0x5b0 [ 77.588853] ? __sys_sendmsg+0x140/0x140 [ 77.592884] SyS_sendmsg+0xd/0x20 [ 77.596309] do_syscall_64+0x1c7/0x5b0 [ 77.600179] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 77.605005] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 77.610186] RIP: 0033:0x45b399 [ 77.613362] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.621402] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 77.628819] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 77.636065] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 77.643327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 77.650585] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 77.663264] batman_adv: batadv0: Adding interface: gretap0 [ 77.668951] batman_adv: batadv0: The MTU of interface gretap0 is too small (1462) 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. [ 77.694356] batman_adv: batadv0: Interface activated: gretap0 [ 77.703849] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 77.725031] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 77.735546] device veth1_vlan entered promiscuous mode [ 77.744350] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 77.757329] IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready [ 77.772593] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 77.781983] IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready [ 77.789418] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.798125] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.813726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.841181] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 77.849209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.862996] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 77.877283] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 77.888221] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 77.898535] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 77.910892] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 77.927282] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 77.934583] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.953256] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 77.961657] FAULT_INJECTION: forcing a failure. [ 77.961657] name failslab, interval 1, probability 0, space 0, times 0 [ 77.962436] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.977694] CPU: 1 PID: 7742 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 77.987497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.991231] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.996929] Call Trace: [ 78.004694] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.006799] dump_stack+0xf7/0x13b [ 78.017670] should_fail.cold.3+0x105/0x14b [ 78.028595] should_failslab+0xba/0xf0 [ 78.031900] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 78.032478] kmem_cache_alloc+0x47/0x790 [ 78.039491] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 78.042989] ? lock_acquire+0x173/0x400 [ 78.042997] ? netlink_create+0x4f0/0x4f0 [ 78.043005] skb_clone+0x117/0x2e0 [ 78.043012] ? debug_smp_processor_id+0x17/0x20 [ 78.043017] netlink_deliver_tap+0x61b/0x920 [ 78.043022] ? sock_ops_is_valid_access+0x30/0x30 [ 78.043031] __netlink_sendskb+0x43/0xa0 [ 78.043036] netlink_unicast+0x4b2/0x600 [ 78.043041] ? memset+0x31/0x40 [ 78.043047] ? netlink_attachskb+0x6d0/0x6d0 [ 78.043056] netlink_ack+0x53a/0xa00 [ 78.055110] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 78.057264] ? netlink_sendmsg+0xbd0/0xbd0 [ 78.064601] IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready [ 78.065441] ? find_held_lock+0x36/0x1d0 [ 78.072655] device veth0_vlan entered promiscuous mode [ 78.074742] netlink_rcv_skb+0x28d/0x370 [ 78.084120] device veth1_vlan entered promiscuous mode [ 78.086107] ? rtnl_bridge_getlink+0x760/0x760 [ 78.092760] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 78.094183] ? netlink_ack+0xa00/0xa00 [ 78.103685] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 78.104435] ? netlink_deliver_tap+0x8e/0x920 [ 78.117031] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 78.120205] rtnetlink_rcv+0x10/0x20 [ 78.126834] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 78.129511] netlink_unicast+0x40b/0x600 [ 78.137461] device veth0_macvtap entered promiscuous mode [ 78.140981] ? netlink_attachskb+0x6d0/0x6d0 [ 78.140992] netlink_sendmsg+0x730/0xbd0 [ 78.140999] ? netlink_unicast+0x600/0x600 [ 78.141007] ? selinux_socket_sendmsg+0x31/0x40 [ 78.141014] ? security_socket_sendmsg+0x6a/0xa0 [ 78.141019] ? netlink_unicast+0x600/0x600 [ 78.141025] sock_sendmsg+0xb5/0xf0 [ 78.141031] ___sys_sendmsg+0x625/0x920 [ 78.148673] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 78.151207] ? trace_hardirqs_off+0x10/0x10 [ 78.151217] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 78.151225] ? find_held_lock+0x36/0x1d0 [ 78.151236] ? lock_downgrade+0x7f0/0x7f0 [ 78.151247] ? __fget+0x1ca/0x2f0 [ 78.151255] ? __fget_light+0x166/0x200 [ 78.160297] device veth1_macvtap entered promiscuous mode [ 78.162473] ? __fdget+0xe/0x10 [ 78.162480] ? sockfd_lookup_light+0x1c/0x150 [ 78.162487] __sys_sendmsg+0xc1/0x140 [ 78.162492] ? SyS_shutdown+0x180/0x180 [ 78.162500] ? __sb_end_write+0xa4/0xd0 [ 78.162509] ? mutex_unlock+0xd/0x10 [ 78.162521] ? do_syscall_64+0x4c/0x5b0 [ 78.170500] IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready [ 78.172971] ? __sys_sendmsg+0x140/0x140 [ 78.172976] SyS_sendmsg+0xd/0x20 [ 78.172983] do_syscall_64+0x1c7/0x5b0 [ 78.172988] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 78.173000] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 78.173005] RIP: 0033:0x45b399 [ 78.173008] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 78.173015] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 78.182895] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 78.186955] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 78.193511] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 78.195208] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 78.203203] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 78.204761] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 78.208980] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.212577] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 78.393147] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 78.402918] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.412138] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 78.421927] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.435362] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 78.444567] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.459315] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 78.467159] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.474979] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.482712] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.489919] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.498000] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.505921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.515865] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.523623] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.531382] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.539167] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.546851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.554706] FAULT_INJECTION: forcing a failure. [ 78.554706] name failslab, interval 1, probability 0, space 0, times 0 [ 78.567147] CPU: 0 PID: 7752 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 78.575035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.584374] Call Trace: [ 78.586966] dump_stack+0xf7/0x13b [ 78.590495] should_fail.cold.3+0x105/0x14b [ 78.594803] should_failslab+0xba/0xf0 [ 78.598668] kmem_cache_alloc+0x2cf/0x790 [ 78.602800] ? memcpy+0x45/0x50 [ 78.606068] ? kstrdup+0x42/0x60 [ 78.609510] __kernfs_new_node+0x63/0x470 [ 78.613728] ? lock_downgrade+0x7f0/0x7f0 [ 78.617864] kernfs_new_node+0x5e/0xe0 [ 78.621783] kernfs_create_link+0x25/0x130 [ 78.626008] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 78.631189] sysfs_create_link+0x43/0xb0 [ 78.635243] netdev_adjacent_sysfs_add+0x94/0xb0 [ 78.639986] ? napi_disable+0x80/0x80 [ 78.643797] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 78.648987] __netdev_upper_dev_link+0x174/0x1f0 [ 78.653903] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 78.658637] netdev_master_upper_dev_link+0x14/0x20 [ 78.663633] batadv_hardif_enable_interface+0x1f4/0xa10 [ 78.668980] batadv_softif_slave_add+0x7f/0xd0 [ 78.673541] do_set_master+0x163/0x1f0 [ 78.677420] do_setlink+0x9dd/0x2c50 [ 78.681115] ? __lock_acquire+0x6a4/0x4500 [ 78.685340] ? rtnl_register+0x20/0x20 [ 78.689233] ? trace_hardirqs_on+0x10/0x10 [ 78.693448] ? trace_hardirqs_off+0x10/0x10 [ 78.697856] ? __lock_acquire+0x6a4/0x4500 [ 78.702076] ? trace_hardirqs_off+0x10/0x10 [ 78.706442] ? trace_hardirqs_off+0x10/0x10 [ 78.710752] ? __lock_is_held+0xb5/0x140 [ 78.714806] ? trace_hardirqs_off+0x10/0x10 [ 78.719107] ? __lock_acquire+0x6a4/0x4500 [ 78.723340] rtnl_newlink+0xe0c/0x1390 [ 78.727218] ? rtnl_link_unregister+0x270/0x270 [ 78.731912] ? find_held_lock+0x36/0x1d0 [ 78.735995] ? find_held_lock+0x36/0x1d0 [ 78.740034] ? __mutex_lock+0x8b7/0x14c0 [ 78.744073] ? lock_downgrade+0x7f0/0x7f0 [ 78.748205] ? do_raw_spin_unlock+0x16a/0x250 [ 78.752716] rtnetlink_rcv_msg+0x34c/0x9e0 [ 78.756931] ? rtnl_bridge_getlink+0x760/0x760 [ 78.761499] ? find_held_lock+0x36/0x1d0 [ 78.765559] netlink_rcv_skb+0x133/0x370 [ 78.769626] ? rtnl_bridge_getlink+0x760/0x760 [ 78.774200] ? netlink_ack+0xa00/0xa00 [ 78.778063] ? netlink_deliver_tap+0x8e/0x920 [ 78.782541] rtnetlink_rcv+0x10/0x20 [ 78.786237] netlink_unicast+0x40b/0x600 [ 78.790291] ? netlink_attachskb+0x6d0/0x6d0 [ 78.794998] netlink_sendmsg+0x730/0xbd0 [ 78.799373] ? netlink_unicast+0x600/0x600 [ 78.803594] ? selinux_socket_sendmsg+0x31/0x40 [ 78.808252] ? security_socket_sendmsg+0x6a/0xa0 [ 78.812990] ? netlink_unicast+0x600/0x600 [ 78.817203] sock_sendmsg+0xb5/0xf0 [ 78.820825] ___sys_sendmsg+0x625/0x920 [ 78.824786] ? trace_hardirqs_off+0x10/0x10 [ 78.829094] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 78.833828] ? find_held_lock+0x36/0x1d0 [ 78.837918] ? lock_downgrade+0x7f0/0x7f0 [ 78.842055] ? __fget+0x1ca/0x2f0 [ 78.845506] ? __fget_light+0x166/0x200 [ 78.849477] ? __fdget+0xe/0x10 [ 78.852741] ? sockfd_lookup_light+0x1c/0x150 [ 78.857308] __sys_sendmsg+0xc1/0x140 [ 78.861348] ? SyS_shutdown+0x180/0x180 [ 78.865322] ? __sb_end_write+0xa4/0xd0 [ 78.869287] ? mutex_unlock+0xd/0x10 [ 78.872980] ? do_syscall_64+0x4c/0x5b0 [ 78.876950] ? __sys_sendmsg+0x140/0x140 [ 78.881424] SyS_sendmsg+0xd/0x20 [ 78.884861] do_syscall_64+0x1c7/0x5b0 [ 78.888817] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 78.893645] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 78.898816] RIP: 0033:0x45b399 [ 78.902168] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 78.909858] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 78.917198] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 78.924540] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 78.931796] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 78.939042] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 78.950454] FAULT_INJECTION: forcing a failure. [ 78.950454] name failslab, interval 1, probability 0, space 0, times 0 [ 78.975410] CPU: 1 PID: 7755 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 78.983404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.992755] Call Trace: [ 78.995343] dump_stack+0xf7/0x13b [ 78.998884] should_fail.cold.3+0x105/0x14b [ 79.003274] should_failslab+0xba/0xf0 [ 79.007138] kmem_cache_alloc+0x2cf/0x790 [ 79.011260] ? memcpy+0x45/0x50 [ 79.014518] ? kstrdup+0x42/0x60 [ 79.017860] __kernfs_new_node+0x63/0x470 [ 79.021985] ? lock_downgrade+0x7f0/0x7f0 [ 79.026106] kernfs_new_node+0x5e/0xe0 [ 79.029981] kernfs_create_link+0x25/0x130 [ 79.034197] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 79.039361] sysfs_create_link+0x43/0xb0 [ 79.043409] netdev_adjacent_sysfs_add+0x94/0xb0 [ 79.048149] ? napi_disable+0x80/0x80 [ 79.051933] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 79.057204] __netdev_upper_dev_link+0x174/0x1f0 [ 79.061946] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 79.066678] netdev_master_upper_dev_link+0x14/0x20 [ 79.071682] batadv_hardif_enable_interface+0x1f4/0xa10 [ 79.077024] batadv_softif_slave_add+0x7f/0xd0 [ 79.081593] do_set_master+0x163/0x1f0 [ 79.085465] do_setlink+0x9dd/0x2c50 [ 79.089254] ? rtnl_register+0x20/0x20 [ 79.093122] ? __lock_acquire+0x6a4/0x4500 [ 79.097347] ? trace_hardirqs_off+0x10/0x10 [ 79.101662] rtnl_newlink+0xe0c/0x1390 [ 79.105537] ? rtnl_link_unregister+0x270/0x270 [ 79.110185] ? finish_task_switch+0x178/0x650 [ 79.114664] ? finish_task_switch+0x14d/0x650 [ 79.119134] ? find_held_lock+0x36/0x1d0 [ 79.123183] ? __mutex_lock+0x8b7/0x14c0 [ 79.127220] ? lock_downgrade+0x7f0/0x7f0 [ 79.131356] ? do_raw_spin_unlock+0x16a/0x250 [ 79.135851] rtnetlink_rcv_msg+0x34c/0x9e0 [ 79.140073] ? rtnl_bridge_getlink+0x760/0x760 [ 79.144628] ? find_held_lock+0x36/0x1d0 [ 79.148665] netlink_rcv_skb+0x133/0x370 [ 79.152703] ? rtnl_bridge_getlink+0x760/0x760 [ 79.157264] ? netlink_ack+0xa00/0xa00 [ 79.161135] ? netlink_deliver_tap+0x8e/0x920 [ 79.165619] rtnetlink_rcv+0x10/0x20 [ 79.169309] netlink_unicast+0x40b/0x600 [ 79.173343] ? netlink_attachskb+0x6d0/0x6d0 [ 79.177726] netlink_sendmsg+0x730/0xbd0 [ 79.181762] ? netlink_unicast+0x600/0x600 [ 79.185987] ? selinux_socket_sendmsg+0x31/0x40 [ 79.190642] ? security_socket_sendmsg+0x6a/0xa0 [ 79.195383] ? netlink_unicast+0x600/0x600 [ 79.199594] sock_sendmsg+0xb5/0xf0 [ 79.203196] ___sys_sendmsg+0x625/0x920 [ 79.207157] ? trace_hardirqs_off+0x10/0x10 [ 79.211499] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 79.216229] ? find_held_lock+0x36/0x1d0 [ 79.220276] ? lock_downgrade+0x7f0/0x7f0 [ 79.224402] ? __fget+0x1ca/0x2f0 [ 79.227833] ? __fget_light+0x166/0x200 [ 79.231782] ? __fdget+0xe/0x10 [ 79.235033] ? sockfd_lookup_light+0x1c/0x150 [ 79.239504] __sys_sendmsg+0xc1/0x140 [ 79.243281] ? SyS_shutdown+0x180/0x180 [ 79.247234] ? __sb_end_write+0xa4/0xd0 [ 79.251290] ? mutex_unlock+0xd/0x10 [ 79.255067] ? do_syscall_64+0x4c/0x5b0 [ 79.259367] ? __sys_sendmsg+0x140/0x140 [ 79.263415] SyS_sendmsg+0xd/0x20 [ 79.266841] do_syscall_64+0x1c7/0x5b0 [ 79.270701] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 79.275521] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 79.280696] RIP: 0033:0x45b399 [ 79.283859] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 79.291539] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 79.298873] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 79.306121] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 79.313422] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 79.320673] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 79.332705] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.342725] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.352107] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.362091] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.374300] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 79.381283] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.391320] device veth0_macvtap entered promiscuous mode [ 79.403473] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 79.410640] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.419692] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.427240] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.434830] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.442396] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.449991] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.458430] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 79.473079] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.487370] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.498574] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.509265] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.518919] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.529219] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.539651] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 79.547390] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.555747] device veth1_macvtap entered promiscuous mode [ 79.570658] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.578438] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.593646] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 79.600703] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 79.610167] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 79.619946] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 79.633306] IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready [ 79.645174] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.654449] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.663121] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.669910] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.679744] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 79.688198] device veth0_vlan entered promiscuous mode [ 79.703878] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 79.715607] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.726728] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 79.736591] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.745943] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 79.755994] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.765202] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 79.775362] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.785634] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 79.792750] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.801278] device veth1_vlan entered promiscuous mode [ 79.809254] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 79.816146] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.824102] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.832548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.842206] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.856065] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.865792] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.876639] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.886406] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.896562] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.906058] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 79.916156] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 79.926502] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 79.933853] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.943021] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 79.949482] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.961469] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.970310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.990096] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 80.007249] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 80.014731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.024639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.035092] device veth0_macvtap entered promiscuous mode [ 80.041268] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 80.051145] device veth1_macvtap entered promiscuous mode [ 80.059823] IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready [ 80.069642] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 80.080567] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 80.089735] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 80.100495] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.109675] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 80.119931] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.129410] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 80.139521] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.157469] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 80.167639] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.177145] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 80.187208] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.198015] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 80.205758] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.213655] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.220872] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.229012] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.237460] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.247132] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 80.266320] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.276211] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 80.286703] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.295949] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 80.305731] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.314916] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 80.324687] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.334045] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 [ 80.343817] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 80.354401] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 80.361303] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.372220] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.379839] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.419866] FAULT_INJECTION: forcing a failure. [ 80.419866] name failslab, interval 1, probability 0, space 0, times 0 [ 80.438858] CPU: 1 PID: 7821 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 80.446679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.456039] Call Trace: [ 80.458631] dump_stack+0xf7/0x13b [ 80.462157] should_fail.cold.3+0x105/0x14b [ 80.466458] should_failslab+0xba/0xf0 [ 80.470320] kmem_cache_alloc_node+0x287/0x790 [ 80.474934] __alloc_skb+0x92/0x500 [ 80.478587] ? skb_trim+0x160/0x160 [ 80.482241] ? if_nlmsg_size+0x2d9/0x6f0 [ 80.486277] rtmsg_ifinfo_build_skb+0x68/0x120 [ 80.490837] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 80.495667] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 80.500580] rtnetlink_event+0xc2/0x110 [ 80.504561] notifier_call_chain+0xd6/0x150 [ 80.508863] raw_notifier_call_chain+0x11/0x20 [ 80.513421] call_netdevice_notifiers_info+0x4b/0x60 [ 80.518499] __netdev_upper_dev_link+0x18e/0x1f0 [ 80.523243] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 80.527997] netdev_master_upper_dev_link+0x14/0x20 [ 80.532997] batadv_hardif_enable_interface+0x1f4/0xa10 [ 80.538341] batadv_softif_slave_add+0x7f/0xd0 [ 80.542910] do_set_master+0x163/0x1f0 [ 80.546778] do_setlink+0x9dd/0x2c50 [ 80.550484] ? trace_hardirqs_on+0x10/0x10 [ 80.554705] ? find_held_lock+0x36/0x1d0 [ 80.558745] ? rtnl_register+0x20/0x20 [ 80.562614] ? find_held_lock+0x36/0x1d0 [ 80.566651] ? is_bpf_text_address+0x60/0xe0 [ 80.571030] ? lock_downgrade+0x7f0/0x7f0 [ 80.575153] ? __lock_acquire+0x6a4/0x4500 [ 80.579367] ? __lock_acquire+0x6a4/0x4500 [ 80.583583] ? __kernel_text_address+0xd/0x40 [ 80.588054] ? unwind_get_return_address+0x61/0xa0 [ 80.593050] ? __save_stack_trace+0x7e/0xd0 [ 80.597361] rtnl_newlink+0xe0c/0x1390 [ 80.601231] ? save_stack_trace+0x16/0x20 [ 80.605358] ? rtnl_link_unregister+0x270/0x270 [ 80.610001] ? avc_has_perm_noaudit+0x236/0x400 [ 80.614656] ? lock_downgrade+0x7f0/0x7f0 [ 80.618780] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 80.623165] ? lock_acquire+0x173/0x400 [ 80.627123] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 80.631510] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 80.635925] rtnetlink_rcv_msg+0x34c/0x9e0 [ 80.640156] ? rtnl_bridge_getlink+0x760/0x760 [ 80.644715] ? find_held_lock+0x36/0x1d0 [ 80.648772] netlink_rcv_skb+0x133/0x370 [ 80.652823] ? rtnl_bridge_getlink+0x760/0x760 [ 80.657390] ? netlink_ack+0xa00/0xa00 [ 80.661265] ? netlink_deliver_tap+0x8e/0x920 [ 80.665780] rtnetlink_rcv+0x10/0x20 [ 80.669475] netlink_unicast+0x40b/0x600 [ 80.673523] ? netlink_attachskb+0x6d0/0x6d0 [ 80.677906] netlink_sendmsg+0x730/0xbd0 [ 80.681942] ? netlink_unicast+0x600/0x600 [ 80.686149] ? selinux_socket_sendmsg+0x31/0x40 [ 80.690796] ? security_socket_sendmsg+0x6a/0xa0 [ 80.695525] ? netlink_unicast+0x600/0x600 [ 80.699747] sock_sendmsg+0xb5/0xf0 [ 80.703348] ___sys_sendmsg+0x625/0x920 [ 80.707295] ? trace_hardirqs_off+0x10/0x10 [ 80.711601] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 80.716343] ? find_held_lock+0x36/0x1d0 [ 80.720390] ? lock_downgrade+0x7f0/0x7f0 [ 80.724527] ? __fget+0x1ca/0x2f0 [ 80.727965] ? __fget_light+0x166/0x200 [ 80.731927] ? __fdget+0xe/0x10 [ 80.735181] ? sockfd_lookup_light+0x1c/0x150 [ 80.740081] __sys_sendmsg+0xc1/0x140 [ 80.743856] ? SyS_shutdown+0x180/0x180 [ 80.747808] ? __sb_end_write+0xa4/0xd0 [ 80.751844] ? mutex_unlock+0xd/0x10 [ 80.755540] ? do_syscall_64+0x4c/0x5b0 [ 80.759592] ? __sys_sendmsg+0x140/0x140 [ 80.763639] SyS_sendmsg+0xd/0x20 [ 80.767074] do_syscall_64+0x1c7/0x5b0 [ 80.770933] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 80.775749] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 80.780929] RIP: 0033:0x45b399 [ 80.784090] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 80.791771] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 80.799017] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 80.806261] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 80.813514] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 80.820755] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 80.835360] batman_adv: batadv0: Adding interface: gretap0 [ 80.841009] batman_adv: batadv0: The MTU of interface gretap0 is too small (1462) 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. [ 80.866847] batman_adv: batadv0: Interface activated: gretap0 [ 81.084134] NOHZ: local_softirq_pending 08 [ 81.088686] NOHZ: local_softirq_pending 08 [ 81.963533] FAULT_INJECTION: forcing a failure. [ 81.963533] name failslab, interval 1, probability 0, space 0, times 0 [ 81.977925] CPU: 1 PID: 7857 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 81.985738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.995089] Call Trace: [ 81.997674] dump_stack+0xf7/0x13b [ 82.001225] should_fail.cold.3+0x105/0x14b [ 82.005554] should_failslab+0xba/0xf0 [ 82.009434] kmem_cache_alloc_node_trace+0x279/0x780 [ 82.014532] __kmalloc_node_track_caller+0x3c/0x70 [ 82.019461] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 82.024197] __alloc_skb+0xc1/0x500 [ 82.027799] ? skb_trim+0x160/0x160 [ 82.031408] ? if_nlmsg_size+0x2d9/0x6f0 [ 82.035450] rtmsg_ifinfo_build_skb+0x68/0x120 [ 82.040195] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 82.045035] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 82.049996] rtnetlink_event+0xc2/0x110 [ 82.054105] notifier_call_chain+0xd6/0x150 [ 82.058554] raw_notifier_call_chain+0x11/0x20 [ 82.063167] call_netdevice_notifiers_info+0x4b/0x60 [ 82.068692] __netdev_upper_dev_link+0x18e/0x1f0 [ 82.073427] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 82.078170] netdev_master_upper_dev_link+0x14/0x20 [ 82.083173] batadv_hardif_enable_interface+0x1f4/0xa10 [ 82.088594] batadv_softif_slave_add+0x7f/0xd0 [ 82.093171] do_set_master+0x163/0x1f0 [ 82.097038] do_setlink+0x9dd/0x2c50 [ 82.100734] ? trace_hardirqs_on+0x10/0x10 [ 82.104946] ? find_held_lock+0x36/0x1d0 [ 82.108992] ? rtnl_register+0x20/0x20 [ 82.112880] ? find_held_lock+0x36/0x1d0 [ 82.116933] ? is_bpf_text_address+0x60/0xe0 [ 82.121334] ? lock_downgrade+0x7f0/0x7f0 [ 82.125631] ? __lock_acquire+0x6a4/0x4500 [ 82.129846] ? __lock_acquire+0x6a4/0x4500 [ 82.134058] ? __kernel_text_address+0xd/0x40 [ 82.138534] ? unwind_get_return_address+0x61/0xa0 [ 82.143454] ? __save_stack_trace+0x7e/0xd0 [ 82.147774] rtnl_newlink+0xe0c/0x1390 [ 82.152434] ? save_stack_trace+0x16/0x20 [ 82.156571] ? rtnl_link_unregister+0x270/0x270 [ 82.161240] ? avc_has_perm_noaudit+0x236/0x400 [ 82.165894] ? lock_downgrade+0x7f0/0x7f0 [ 82.170024] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 82.174410] ? lock_acquire+0x173/0x400 [ 82.178465] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 82.182861] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 82.187259] rtnetlink_rcv_msg+0x34c/0x9e0 [ 82.191482] ? rtnl_bridge_getlink+0x760/0x760 [ 82.196040] ? find_held_lock+0x36/0x1d0 [ 82.200092] netlink_rcv_skb+0x133/0x370 [ 82.204142] ? rtnl_bridge_getlink+0x760/0x760 [ 82.208697] ? netlink_ack+0xa00/0xa00 [ 82.212561] ? netlink_deliver_tap+0x8e/0x920 [ 82.217052] rtnetlink_rcv+0x10/0x20 [ 82.220807] netlink_unicast+0x40b/0x600 [ 82.224853] ? netlink_attachskb+0x6d0/0x6d0 [ 82.229254] netlink_sendmsg+0x730/0xbd0 [ 82.233301] ? netlink_unicast+0x600/0x600 [ 82.237521] ? selinux_socket_sendmsg+0x31/0x40 [ 82.242169] ? security_socket_sendmsg+0x6a/0xa0 [ 82.246907] ? netlink_unicast+0x600/0x600 [ 82.251115] sock_sendmsg+0xb5/0xf0 [ 82.254741] ___sys_sendmsg+0x625/0x920 [ 82.258709] ? trace_hardirqs_off+0x10/0x10 [ 82.263040] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 82.267781] ? find_held_lock+0x36/0x1d0 [ 82.271836] ? lock_downgrade+0x7f0/0x7f0 [ 82.275972] ? __fget+0x1ca/0x2f0 [ 82.279410] ? __fget_light+0x166/0x200 [ 82.283374] ? __fdget+0xe/0x10 [ 82.286635] ? sockfd_lookup_light+0x1c/0x150 [ 82.291204] __sys_sendmsg+0xc1/0x140 [ 82.294987] ? SyS_shutdown+0x180/0x180 [ 82.298946] ? __sb_end_write+0xa4/0xd0 [ 82.302904] ? mutex_unlock+0xd/0x10 [ 82.306601] ? do_syscall_64+0x4c/0x5b0 [ 82.310553] ? __sys_sendmsg+0x140/0x140 [ 82.314609] SyS_sendmsg+0xd/0x20 [ 82.318036] do_syscall_64+0x1c7/0x5b0 [ 82.321918] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 82.326756] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 82.331925] RIP: 0033:0x45b399 [ 82.335094] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.342775] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 82.350022] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 82.357282] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 82.365318] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 82.372574] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 82.395007] batman_adv: batadv0: Adding interface: gretap0 [ 82.413136] batman_adv: batadv0: The MTU of interface gretap0 is too small (1462) 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. [ 82.440274] batman_adv: batadv0: Interface activated: gretap0 [ 82.447747] FAULT_INJECTION: forcing a failure. [ 82.447747] name failslab, interval 1, probability 0, space 0, times 0 [ 82.459307] CPU: 0 PID: 7859 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 82.467099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.476530] Call Trace: [ 82.479200] dump_stack+0xf7/0x13b [ 82.482720] should_fail.cold.3+0x105/0x14b [ 82.487023] should_failslab+0xba/0xf0 [ 82.490887] kmem_cache_alloc_node+0x287/0x790 [ 82.495463] __alloc_skb+0x92/0x500 [ 82.499097] ? skb_trim+0x160/0x160 [ 82.502715] ? if_nlmsg_size+0x2d9/0x6f0 [ 82.506774] rtmsg_ifinfo_build_skb+0x68/0x120 [ 82.511348] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 82.516512] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 82.521437] rtnetlink_event+0xc2/0x110 [ 82.525417] notifier_call_chain+0xd6/0x150 [ 82.529727] raw_notifier_call_chain+0x11/0x20 [ 82.534299] call_netdevice_notifiers_info+0x4b/0x60 [ 82.539390] __netdev_upper_dev_link+0x18e/0x1f0 [ 82.544132] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 82.548871] netdev_master_upper_dev_link+0x14/0x20 [ 82.553874] batadv_hardif_enable_interface+0x1f4/0xa10 [ 82.559231] batadv_softif_slave_add+0x7f/0xd0 [ 82.564254] do_set_master+0x163/0x1f0 [ 82.568119] do_setlink+0x9dd/0x2c50 [ 82.571810] ? __lock_acquire+0x6a4/0x4500 [ 82.576056] ? rtnl_register+0x20/0x20 [ 82.579931] ? trace_hardirqs_on+0x10/0x10 [ 82.584141] ? trace_hardirqs_off+0x10/0x10 [ 82.588440] ? __lock_acquire+0x6a4/0x4500 [ 82.592683] ? trace_hardirqs_off+0x10/0x10 [ 82.597066] ? __lock_is_held+0xb5/0x140 [ 82.601467] ? trace_hardirqs_off+0x10/0x10 [ 82.605787] rtnl_newlink+0xe0c/0x1390 [ 82.609665] ? rtnl_link_unregister+0x270/0x270 [ 82.614403] ? finish_task_switch+0x178/0x650 [ 82.618964] ? finish_task_switch+0x14d/0x650 [ 82.623649] ? find_held_lock+0x36/0x1d0 [ 82.627745] ? __mutex_lock+0x8b7/0x14c0 [ 82.631798] ? lock_downgrade+0x7f0/0x7f0 [ 82.635933] ? do_raw_spin_unlock+0x16a/0x250 [ 82.640425] rtnetlink_rcv_msg+0x34c/0x9e0 [ 82.644635] ? rtnl_bridge_getlink+0x760/0x760 [ 82.649193] ? find_held_lock+0x36/0x1d0 [ 82.653238] netlink_rcv_skb+0x133/0x370 [ 82.657298] ? rtnl_bridge_getlink+0x760/0x760 [ 82.661865] ? netlink_ack+0xa00/0xa00 [ 82.665729] ? netlink_deliver_tap+0x8e/0x920 [ 82.670207] rtnetlink_rcv+0x10/0x20 [ 82.673899] netlink_unicast+0x40b/0x600 [ 82.677943] ? netlink_attachskb+0x6d0/0x6d0 [ 82.682326] netlink_sendmsg+0x730/0xbd0 [ 82.686385] ? netlink_unicast+0x600/0x600 [ 82.690609] ? selinux_socket_sendmsg+0x31/0x40 [ 82.695258] ? security_socket_sendmsg+0x6a/0xa0 [ 82.699994] ? netlink_unicast+0x600/0x600 [ 82.704290] sock_sendmsg+0xb5/0xf0 [ 82.707898] ___sys_sendmsg+0x625/0x920 [ 82.711869] ? trace_hardirqs_off+0x10/0x10 [ 82.716458] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 82.721288] ? find_held_lock+0x36/0x1d0 [ 82.725330] ? lock_downgrade+0x7f0/0x7f0 [ 82.729458] ? __fget+0x1ca/0x2f0 [ 82.732887] ? __fget_light+0x166/0x200 [ 82.736843] ? __fdget+0xe/0x10 [ 82.740107] ? sockfd_lookup_light+0x1c/0x150 [ 82.744577] __sys_sendmsg+0xc1/0x140 [ 82.748359] ? SyS_shutdown+0x180/0x180 [ 82.752315] ? __sb_end_write+0xa4/0xd0 [ 82.756640] ? mutex_unlock+0xd/0x10 [ 82.760400] ? do_syscall_64+0x4c/0x5b0 [ 82.764372] ? __sys_sendmsg+0x140/0x140 [ 82.768420] SyS_sendmsg+0xd/0x20 [ 82.771862] do_syscall_64+0x1c7/0x5b0 [ 82.775735] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 82.780570] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 82.785925] RIP: 0033:0x45b399 [ 82.789089] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.796778] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 82.804124] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 82.811500] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 82.818755] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 82.835664] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 82.844751] batman_adv: batadv0: Adding interface: gretap0 2020/06/04 21:06:01 executed programs: 22 [ 82.850385] batman_adv: batadv0: The MTU of interface gretap0 is too small (1462) 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. [ 82.886779] batman_adv: batadv0: Interface activated: gretap0 [ 82.896584] FAULT_INJECTION: forcing a failure. [ 82.896584] name failslab, interval 1, probability 0, space 0, times 0 [ 82.909282] CPU: 0 PID: 7860 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 82.917085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.926459] Call Trace: [ 82.929048] dump_stack+0xf7/0x13b [ 82.932588] should_fail.cold.3+0x105/0x14b [ 82.936909] should_failslab+0xba/0xf0 [ 82.940822] kmem_cache_alloc_node_trace+0x279/0x780 [ 82.945931] __kmalloc_node_track_caller+0x3c/0x70 [ 82.950848] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 82.955607] __alloc_skb+0xc1/0x500 [ 82.959231] ? skb_trim+0x160/0x160 [ 82.962927] ? if_nlmsg_size+0x2d9/0x6f0 [ 82.966965] rtmsg_ifinfo_build_skb+0x68/0x120 [ 82.971584] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 82.976406] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 82.981318] rtnetlink_event+0xc2/0x110 [ 82.985355] notifier_call_chain+0xd6/0x150 [ 82.989681] raw_notifier_call_chain+0x11/0x20 [ 82.994248] call_netdevice_notifiers_info+0x4b/0x60 [ 82.999340] __netdev_upper_dev_link+0x18e/0x1f0 [ 83.004079] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 83.004210] NOHZ: local_softirq_pending 08 [ 83.008822] netdev_master_upper_dev_link+0x14/0x20 [ 83.018041] batadv_hardif_enable_interface+0x1f4/0xa10 [ 83.023404] batadv_softif_slave_add+0x7f/0xd0 [ 83.027976] do_set_master+0x163/0x1f0 [ 83.031838] do_setlink+0x9dd/0x2c50 [ 83.035534] ? __lock_acquire+0x6a4/0x4500 [ 83.039753] ? rtnl_register+0x20/0x20 [ 83.043623] ? trace_hardirqs_on+0x10/0x10 [ 83.047834] ? trace_hardirqs_off+0x10/0x10 [ 83.052142] ? __lock_acquire+0x6a4/0x4500 [ 83.056362] ? trace_hardirqs_off+0x10/0x10 [ 83.060669] ? __lock_is_held+0xb5/0x140 [ 83.064711] ? trace_hardirqs_off+0x10/0x10 [ 83.069018] rtnl_newlink+0xe0c/0x1390 [ 83.072890] ? rtnl_link_unregister+0x270/0x270 [ 83.077545] ? finish_task_switch+0x178/0x650 [ 83.082035] ? finish_task_switch+0x14d/0x650 [ 83.086531] ? find_held_lock+0x36/0x1d0 [ 83.090697] ? __mutex_lock+0x8b7/0x14c0 [ 83.094745] ? lock_downgrade+0x7f0/0x7f0 [ 83.098895] ? do_raw_spin_unlock+0x16a/0x250 [ 83.103393] rtnetlink_rcv_msg+0x34c/0x9e0 [ 83.107639] ? rtnl_bridge_getlink+0x760/0x760 [ 83.112208] ? find_held_lock+0x36/0x1d0 [ 83.116278] netlink_rcv_skb+0x133/0x370 [ 83.120316] ? rtnl_bridge_getlink+0x760/0x760 [ 83.124875] ? netlink_ack+0xa00/0xa00 [ 83.128740] ? netlink_deliver_tap+0x8e/0x920 [ 83.133228] rtnetlink_rcv+0x10/0x20 [ 83.136922] netlink_unicast+0x40b/0x600 [ 83.140961] ? netlink_attachskb+0x6d0/0x6d0 [ 83.145345] netlink_sendmsg+0x730/0xbd0 [ 83.149380] ? netlink_unicast+0x600/0x600 [ 83.153615] ? selinux_socket_sendmsg+0x31/0x40 [ 83.158283] ? security_socket_sendmsg+0x6a/0xa0 [ 83.163013] ? netlink_unicast+0x600/0x600 [ 83.167244] sock_sendmsg+0xb5/0xf0 [ 83.170848] ___sys_sendmsg+0x625/0x920 [ 83.174799] ? trace_hardirqs_off+0x10/0x10 [ 83.179113] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 83.183860] ? find_held_lock+0x36/0x1d0 [ 83.187916] ? lock_downgrade+0x7f0/0x7f0 [ 83.192121] ? __fget+0x1ca/0x2f0 [ 83.195561] ? __fget_light+0x166/0x200 [ 83.199533] ? __fdget+0xe/0x10 [ 83.202936] ? sockfd_lookup_light+0x1c/0x150 [ 83.207407] __sys_sendmsg+0xc1/0x140 [ 83.211197] ? SyS_shutdown+0x180/0x180 [ 83.215149] ? __sb_end_write+0xa4/0xd0 [ 83.219120] ? mutex_unlock+0xd/0x10 [ 83.222812] ? do_syscall_64+0x4c/0x5b0 [ 83.226762] ? __sys_sendmsg+0x140/0x140 [ 83.230882] SyS_sendmsg+0xd/0x20 [ 83.234325] do_syscall_64+0x1c7/0x5b0 [ 83.238450] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 83.243278] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 83.248454] RIP: 0033:0x45b399 [ 83.251624] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.259326] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 83.266665] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 83.273920] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 83.281272] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 83.288520] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 83.298033] batman_adv: batadv0: Adding interface: gretap0 [ 83.304329] batman_adv: batadv0: The MTU of interface gretap0 is too small (1462) 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. [ 83.329608] batman_adv: batadv0: Interface activated: gretap0 [ 83.339424] FAULT_INJECTION: forcing a failure. [ 83.339424] name failslab, interval 1, probability 0, space 0, times 0 [ 83.351952] CPU: 0 PID: 7861 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 83.359757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.369111] Call Trace: [ 83.371718] dump_stack+0xf7/0x13b [ 83.375283] should_fail.cold.3+0x105/0x14b [ 83.379606] should_failslab+0xba/0xf0 [ 83.383490] kmem_cache_alloc_node_trace+0x279/0x780 [ 83.388599] __kmalloc_node_track_caller+0x3c/0x70 [ 83.393529] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 83.398284] __alloc_skb+0xc1/0x500 [ 83.401915] ? skb_trim+0x160/0x160 [ 83.405539] ? if_nlmsg_size+0x2d9/0x6f0 [ 83.409599] rtmsg_ifinfo_build_skb+0x68/0x120 [ 83.414182] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 83.419058] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 83.423987] rtnetlink_event+0xc2/0x110 [ 83.427957] notifier_call_chain+0xd6/0x150 [ 83.432283] raw_notifier_call_chain+0x11/0x20 [ 83.436864] call_netdevice_notifiers_info+0x4b/0x60 [ 83.441963] __netdev_upper_dev_link+0x18e/0x1f0 [ 83.446717] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 83.451473] netdev_master_upper_dev_link+0x14/0x20 [ 83.456486] batadv_hardif_enable_interface+0x1f4/0xa10 [ 83.461849] batadv_softif_slave_add+0x7f/0xd0 [ 83.466433] do_set_master+0x163/0x1f0 [ 83.470310] do_setlink+0x9dd/0x2c50 [ 83.474148] ? rtnl_register+0x20/0x20 [ 83.478026] ? trace_hardirqs_off+0x10/0x10 [ 83.482327] ? trace_hardirqs_on+0x10/0x10 [ 83.486549] ? trace_hardirqs_off+0x10/0x10 [ 83.490859] ? find_held_lock+0x36/0x1d0 [ 83.494907] ? find_held_lock+0x36/0x1d0 [ 83.499049] ? free_one_page+0x9c4/0x1050 [ 83.503282] ? lock_downgrade+0x7f0/0x7f0 [ 83.507409] ? trace_hardirqs_off+0xd/0x10 [ 83.511639] ? bad_range+0x121/0x3a0 [ 83.515349] ? __this_cpu_preempt_check+0x13/0x20 [ 83.520192] ? do_raw_spin_unlock+0x16a/0x250 [ 83.524691] rtnl_newlink+0xe0c/0x1390 [ 83.528575] ? rtnl_link_unregister+0x270/0x270 [ 83.533250] ? finish_task_switch+0x448/0x650 [ 83.537790] ? find_held_lock+0x36/0x1d0 [ 83.541840] ? __mutex_lock+0x8b7/0x14c0 [ 83.545883] ? lock_downgrade+0x7f0/0x7f0 [ 83.550767] ? do_raw_spin_unlock+0x16a/0x250 [ 83.555278] rtnetlink_rcv_msg+0x34c/0x9e0 [ 83.559503] ? rtnl_bridge_getlink+0x760/0x760 [ 83.564071] ? find_held_lock+0x36/0x1d0 [ 83.568192] netlink_rcv_skb+0x133/0x370 [ 83.572293] ? rtnl_bridge_getlink+0x760/0x760 [ 83.576870] ? netlink_ack+0xa00/0xa00 [ 83.580742] ? netlink_deliver_tap+0x8e/0x920 [ 83.585250] rtnetlink_rcv+0x10/0x20 [ 83.588948] netlink_unicast+0x40b/0x600 [ 83.593086] ? netlink_attachskb+0x6d0/0x6d0 [ 83.597487] netlink_sendmsg+0x730/0xbd0 [ 83.604058] ? netlink_unicast+0x600/0x600 [ 83.608326] ? selinux_socket_sendmsg+0x31/0x40 [ 83.612987] ? security_socket_sendmsg+0x6a/0xa0 [ 83.617945] ? netlink_unicast+0x600/0x600 [ 83.622165] sock_sendmsg+0xb5/0xf0 [ 83.625841] ___sys_sendmsg+0x625/0x920 [ 83.629798] ? trace_hardirqs_off+0x10/0x10 [ 83.634105] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 83.638865] ? find_held_lock+0x36/0x1d0 [ 83.642916] ? lock_downgrade+0x7f0/0x7f0 [ 83.647076] ? __fget+0x1ca/0x2f0 [ 83.650579] ? __fget_light+0x166/0x200 [ 83.654562] ? __fdget+0xe/0x10 [ 83.657888] ? sockfd_lookup_light+0x1c/0x150 [ 83.662393] __sys_sendmsg+0xc1/0x140 [ 83.666186] ? SyS_shutdown+0x180/0x180 [ 83.670156] ? __sb_end_write+0xa4/0xd0 [ 83.674118] ? mutex_unlock+0xd/0x10 [ 83.677820] ? do_syscall_64+0x4c/0x5b0 [ 83.681779] ? __sys_sendmsg+0x140/0x140 [ 83.685827] SyS_sendmsg+0xd/0x20 [ 83.689344] do_syscall_64+0x1c7/0x5b0 [ 83.693213] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 83.698045] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 83.703265] RIP: 0033:0x45b399 [ 83.706438] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.714138] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 83.721447] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 83.728705] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 83.735967] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 83.743392] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 83.753756] batman_adv: batadv0: Adding interface: team0 [ 83.759220] batman_adv: batadv0: The MTU of interface team0 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. [ 83.784422] batman_adv: batadv0: Interface activated: team0 [ 83.806648] FAULT_INJECTION: forcing a failure. [ 83.806648] name failslab, interval 1, probability 0, space 0, times 0 [ 83.827006] CPU: 1 PID: 7886 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 83.834816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.844169] Call Trace: [ 83.846758] dump_stack+0xf7/0x13b [ 83.850385] should_fail.cold.3+0x105/0x14b [ 83.854712] should_failslab+0xba/0xf0 [ 83.858605] kmem_cache_alloc_node_trace+0x279/0x780 [ 83.863710] __kmalloc_node_track_caller+0x3c/0x70 [ 83.868640] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 83.873394] __alloc_skb+0xc1/0x500 [ 83.877022] ? skb_trim+0x160/0x160 [ 83.880649] ? if_nlmsg_size+0x2d9/0x6f0 [ 83.884715] rtmsg_ifinfo_build_skb+0x68/0x120 [ 83.889297] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 83.894137] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 83.899096] rtnetlink_event+0xc2/0x110 [ 83.903071] notifier_call_chain+0xd6/0x150 [ 83.907391] raw_notifier_call_chain+0x11/0x20 [ 83.911971] call_netdevice_notifiers_info+0x4b/0x60 [ 83.917081] __netdev_upper_dev_link+0x18e/0x1f0 [ 83.921834] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 83.926595] netdev_master_upper_dev_link+0x14/0x20 [ 83.931611] batadv_hardif_enable_interface+0x1f4/0xa10 [ 83.936978] batadv_softif_slave_add+0x7f/0xd0 [ 83.941556] do_set_master+0x163/0x1f0 [ 83.945438] do_setlink+0x9dd/0x2c50 [ 83.949148] ? trace_hardirqs_on+0x10/0x10 [ 83.953375] ? find_held_lock+0x36/0x1d0 [ 83.957436] ? rtnl_register+0x20/0x20 [ 83.961317] ? find_held_lock+0x36/0x1d0 [ 83.965377] ? __lock_acquire+0x6a4/0x4500 [ 83.969602] ? trace_hardirqs_off+0x10/0x10 [ 83.973920] ? trace_hardirqs_off+0x10/0x10 [ 83.978242] ? __lock_is_held+0xb5/0x140 [ 83.982304] ? trace_hardirqs_off+0x10/0x10 [ 83.986625] rtnl_newlink+0xe0c/0x1390 [ 83.990552] ? rtnl_link_unregister+0x270/0x270 [ 83.995227] ? finish_task_switch+0x178/0x650 [ 83.999773] ? finish_task_switch+0x14d/0x650 [ 84.004261] ? find_held_lock+0x36/0x1d0 [ 84.008306] ? __mutex_lock+0x8b7/0x14c0 [ 84.012358] ? lock_downgrade+0x7f0/0x7f0 [ 84.016540] ? do_raw_spin_unlock+0x16a/0x250 [ 84.021040] rtnetlink_rcv_msg+0x34c/0x9e0 [ 84.025263] ? rtnl_bridge_getlink+0x760/0x760 [ 84.029836] ? find_held_lock+0x36/0x1d0 [ 84.033880] netlink_rcv_skb+0x133/0x370 [ 84.037921] ? rtnl_bridge_getlink+0x760/0x760 [ 84.042484] ? netlink_ack+0xa00/0xa00 [ 84.046351] ? netlink_deliver_tap+0x8e/0x920 [ 84.050827] rtnetlink_rcv+0x10/0x20 [ 84.054517] netlink_unicast+0x40b/0x600 [ 84.058555] ? netlink_attachskb+0x6d0/0x6d0 [ 84.062941] netlink_sendmsg+0x730/0xbd0 [ 84.067133] ? netlink_unicast+0x600/0x600 [ 84.071345] ? selinux_socket_sendmsg+0x31/0x40 [ 84.075990] ? security_socket_sendmsg+0x6a/0xa0 [ 84.080726] ? netlink_unicast+0x600/0x600 [ 84.084943] sock_sendmsg+0xb5/0xf0 [ 84.088563] ___sys_sendmsg+0x625/0x920 [ 84.092540] ? trace_hardirqs_off+0x10/0x10 [ 84.096838] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 84.102527] ? find_held_lock+0x36/0x1d0 [ 84.106596] ? lock_downgrade+0x7f0/0x7f0 [ 84.110728] ? __fget+0x1ca/0x2f0 [ 84.114158] ? __fget_light+0x166/0x200 [ 84.118126] ? __fdget+0xe/0x10 [ 84.121401] ? sockfd_lookup_light+0x1c/0x150 [ 84.125891] __sys_sendmsg+0xc1/0x140 [ 84.129668] ? SyS_shutdown+0x180/0x180 [ 84.133621] ? __sb_end_write+0xa4/0xd0 [ 84.137580] ? mutex_unlock+0xd/0x10 [ 84.141295] ? do_syscall_64+0x4c/0x5b0 [ 84.145272] ? __sys_sendmsg+0x140/0x140 [ 84.149317] SyS_sendmsg+0xd/0x20 [ 84.152751] do_syscall_64+0x1c7/0x5b0 [ 84.156623] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 84.161467] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 84.166641] RIP: 0033:0x45b399 [ 84.169830] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 84.177518] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 84.184771] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 84.192028] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 84.199275] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 84.206529] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 84.234621] batman_adv: batadv0: Adding interface: ip6gretap0 [ 84.240737] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 84.269612] batman_adv: batadv0: Interface activated: ip6gretap0 [ 84.277208] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 84.323623] FAULT_INJECTION: forcing a failure. [ 84.323623] name failslab, interval 1, probability 0, space 0, times 0 [ 84.339094] CPU: 1 PID: 7924 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 84.346901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.356374] Call Trace: [ 84.358987] dump_stack+0xf7/0x13b [ 84.362531] should_fail.cold.3+0x105/0x14b [ 84.366852] should_failslab+0xba/0xf0 [ 84.370736] kmem_cache_alloc_node_trace+0x279/0x780 [ 84.375948] __kmalloc_node_track_caller+0x3c/0x70 [ 84.380880] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 84.385645] __alloc_skb+0xc1/0x500 [ 84.389270] ? skb_trim+0x160/0x160 [ 84.392898] ? if_nlmsg_size+0x2d9/0x6f0 [ 84.396956] rtmsg_ifinfo_build_skb+0x68/0x120 [ 84.401533] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 84.406370] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 84.411292] rtnetlink_event+0xc2/0x110 [ 84.415268] notifier_call_chain+0xd6/0x150 [ 84.419588] raw_notifier_call_chain+0x11/0x20 [ 84.424164] call_netdevice_notifiers_info+0x4b/0x60 [ 84.429265] __netdev_upper_dev_link+0x18e/0x1f0 [ 84.434977] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 84.439733] netdev_master_upper_dev_link+0x14/0x20 [ 84.444745] batadv_hardif_enable_interface+0x1f4/0xa10 [ 84.450107] batadv_softif_slave_add+0x7f/0xd0 [ 84.454687] do_set_master+0x163/0x1f0 [ 84.458570] do_setlink+0x9dd/0x2c50 [ 84.462276] ? trace_hardirqs_on+0x10/0x10 [ 84.466498] ? find_held_lock+0x36/0x1d0 [ 84.470537] ? rtnl_register+0x20/0x20 [ 84.474401] ? find_held_lock+0x36/0x1d0 [ 84.478443] ? is_bpf_text_address+0x60/0xe0 [ 84.482829] ? lock_downgrade+0x7f0/0x7f0 [ 84.486975] ? __lock_acquire+0x6a4/0x4500 [ 84.491197] ? __lock_acquire+0x6a4/0x4500 [ 84.495409] ? __kernel_text_address+0xd/0x40 [ 84.499899] ? unwind_get_return_address+0x61/0xa0 [ 84.504815] ? __save_stack_trace+0x7e/0xd0 [ 84.509142] rtnl_newlink+0xe0c/0x1390 [ 84.513008] ? save_stack_trace+0x16/0x20 [ 84.517135] ? rtnl_link_unregister+0x270/0x270 [ 84.521781] ? avc_has_perm_noaudit+0x236/0x400 [ 84.526428] ? lock_downgrade+0x7f0/0x7f0 [ 84.530577] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 84.534961] ? lock_acquire+0x173/0x400 [ 84.538927] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 84.543328] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 84.547727] rtnetlink_rcv_msg+0x34c/0x9e0 [ 84.551953] ? rtnl_bridge_getlink+0x760/0x760 [ 84.556603] ? find_held_lock+0x36/0x1d0 [ 84.560695] netlink_rcv_skb+0x133/0x370 [ 84.564835] ? rtnl_bridge_getlink+0x760/0x760 [ 84.569405] ? netlink_ack+0xa00/0xa00 [ 84.573424] ? netlink_deliver_tap+0x8e/0x920 [ 84.577904] rtnetlink_rcv+0x10/0x20 [ 84.581611] netlink_unicast+0x40b/0x600 [ 84.585662] ? netlink_attachskb+0x6d0/0x6d0 [ 84.590049] netlink_sendmsg+0x730/0xbd0 [ 84.594086] ? netlink_unicast+0x600/0x600 [ 84.598298] ? selinux_socket_sendmsg+0x31/0x40 [ 84.602944] ? security_socket_sendmsg+0x6a/0xa0 [ 84.607697] ? netlink_unicast+0x600/0x600 [ 84.611907] sock_sendmsg+0xb5/0xf0 [ 84.615512] ___sys_sendmsg+0x625/0x920 [ 84.619467] ? trace_hardirqs_off+0x10/0x10 [ 84.623771] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 84.628543] ? find_held_lock+0x36/0x1d0 [ 84.632592] ? lock_downgrade+0x7f0/0x7f0 [ 84.636727] ? __fget+0x1ca/0x2f0 [ 84.640175] ? __fget_light+0x166/0x200 [ 84.644132] ? __fdget+0xe/0x10 [ 84.647415] ? sockfd_lookup_light+0x1c/0x150 [ 84.651904] __sys_sendmsg+0xc1/0x140 [ 84.655680] ? SyS_shutdown+0x180/0x180 [ 84.659630] ? __sb_end_write+0xa4/0xd0 [ 84.663592] ? mutex_unlock+0xd/0x10 [ 84.667297] ? do_syscall_64+0x4c/0x5b0 [ 84.671244] ? __sys_sendmsg+0x140/0x140 [ 84.675289] SyS_sendmsg+0xd/0x20 [ 84.678739] do_syscall_64+0x1c7/0x5b0 [ 84.682602] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 84.687425] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 84.692601] RIP: 0033:0x45b399 [ 84.695770] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 84.703462] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 84.710707] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 84.717956] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 84.725641] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 84.732886] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 84.743630] batman_adv: batadv0: Adding interface: bridge0 [ 84.749431] batman_adv: batadv0: The MTU of interface bridge0 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. [ 84.774670] batman_adv: batadv0: Interface activated: bridge0 [ 84.781247] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 84.799919] FAULT_INJECTION: forcing a failure. [ 84.799919] name failslab, interval 1, probability 0, space 0, times 0 [ 84.817872] CPU: 0 PID: 7928 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 84.825690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.835173] Call Trace: [ 84.837759] dump_stack+0xf7/0x13b [ 84.841301] should_fail.cold.3+0x105/0x14b [ 84.845621] should_failslab+0xba/0xf0 [ 84.849509] kmem_cache_alloc_node_trace+0x279/0x780 [ 84.854615] __kmalloc_node_track_caller+0x3c/0x70 [ 84.859554] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 84.864301] __alloc_skb+0xc1/0x500 [ 84.867921] ? skb_trim+0x160/0x160 [ 84.871541] ? if_nlmsg_size+0x2d9/0x6f0 [ 84.875603] rtmsg_ifinfo_build_skb+0x68/0x120 [ 84.880185] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 84.885021] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 84.889947] rtnetlink_event+0xc2/0x110 [ 84.893921] notifier_call_chain+0xd6/0x150 [ 84.898248] raw_notifier_call_chain+0x11/0x20 [ 84.902844] call_netdevice_notifiers_info+0x4b/0x60 [ 84.907938] __netdev_upper_dev_link+0x18e/0x1f0 [ 84.912695] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 84.917470] netdev_master_upper_dev_link+0x14/0x20 [ 84.922474] batadv_hardif_enable_interface+0x1f4/0xa10 [ 84.927827] batadv_softif_slave_add+0x7f/0xd0 [ 84.932408] do_set_master+0x163/0x1f0 [ 84.936282] do_setlink+0x9dd/0x2c50 [ 84.939973] ? __lock_acquire+0x6a4/0x4500 [ 84.944192] ? rtnl_register+0x20/0x20 [ 84.948164] ? trace_hardirqs_on+0x10/0x10 [ 84.952414] ? trace_hardirqs_off+0x10/0x10 [ 84.956723] ? __lock_acquire+0x6a4/0x4500 [ 84.960940] ? trace_hardirqs_off+0x10/0x10 [ 84.965256] ? __lock_is_held+0xb5/0x140 [ 84.969459] ? trace_hardirqs_off+0x10/0x10 [ 84.973779] rtnl_newlink+0xe0c/0x1390 [ 84.977667] ? rtnl_link_unregister+0x270/0x270 [ 84.982484] ? finish_task_switch+0x178/0x650 [ 84.986956] ? finish_task_switch+0x14d/0x650 [ 84.992387] ? find_held_lock+0x36/0x1d0 [ 84.996439] ? __mutex_lock+0x8b7/0x14c0 [ 85.000505] ? lock_downgrade+0x7f0/0x7f0 [ 85.004883] ? do_raw_spin_unlock+0x16a/0x250 [ 85.009392] rtnetlink_rcv_msg+0x34c/0x9e0 [ 85.013681] ? rtnl_bridge_getlink+0x760/0x760 [ 85.018245] ? find_held_lock+0x36/0x1d0 [ 85.022339] netlink_rcv_skb+0x133/0x370 [ 85.026401] ? rtnl_bridge_getlink+0x760/0x760 [ 85.030980] ? netlink_ack+0xa00/0xa00 [ 85.035020] ? netlink_deliver_tap+0x8e/0x920 [ 85.039497] rtnetlink_rcv+0x10/0x20 [ 85.043198] netlink_unicast+0x40b/0x600 [ 85.047239] ? netlink_attachskb+0x6d0/0x6d0 [ 85.051627] netlink_sendmsg+0x730/0xbd0 [ 85.055684] ? netlink_unicast+0x600/0x600 [ 85.059897] ? selinux_socket_sendmsg+0x31/0x40 [ 85.064557] ? security_socket_sendmsg+0x6a/0xa0 [ 85.069289] ? netlink_unicast+0x600/0x600 [ 85.073520] sock_sendmsg+0xb5/0xf0 [ 85.077128] ___sys_sendmsg+0x625/0x920 [ 85.081086] ? trace_hardirqs_off+0x10/0x10 [ 85.085581] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 85.090485] ? find_held_lock+0x36/0x1d0 [ 85.094627] ? lock_downgrade+0x7f0/0x7f0 [ 85.098862] ? __fget+0x1ca/0x2f0 [ 85.102318] ? __fget_light+0x166/0x200 [ 85.106281] ? __fdget+0xe/0x10 [ 85.109570] ? sockfd_lookup_light+0x1c/0x150 [ 85.114054] __sys_sendmsg+0xc1/0x140 [ 85.117852] ? SyS_shutdown+0x180/0x180 [ 85.121812] ? __sb_end_write+0xa4/0xd0 [ 85.125874] ? mutex_unlock+0xd/0x10 [ 85.129587] ? do_syscall_64+0x4c/0x5b0 [ 85.133657] ? __sys_sendmsg+0x140/0x140 [ 85.137701] SyS_sendmsg+0xd/0x20 [ 85.141160] do_syscall_64+0x1c7/0x5b0 [ 85.145027] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 85.149940] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 85.155113] RIP: 0033:0x45b399 [ 85.158302] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.166603] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 85.173954] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 85.181210] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 85.188552] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 85.195824] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 85.208097] batman_adv: batadv0: Adding interface: ip6gretap0 [ 85.214159] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 85.240028] batman_adv: batadv0: Interface activated: ip6gretap0 [ 85.247440] FAULT_INJECTION: forcing a failure. [ 85.247440] name failslab, interval 1, probability 0, space 0, times 0 [ 85.258989] CPU: 0 PID: 7921 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 85.266787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.276236] Call Trace: [ 85.278827] dump_stack+0xf7/0x13b [ 85.282378] should_fail.cold.3+0x105/0x14b [ 85.287575] should_failslab+0xba/0xf0 [ 85.291592] kmem_cache_alloc_node_trace+0x279/0x780 [ 85.296874] __kmalloc_node_track_caller+0x3c/0x70 [ 85.301911] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 85.307313] __alloc_skb+0xc1/0x500 [ 85.310980] ? skb_trim+0x160/0x160 [ 85.314627] ? if_nlmsg_size+0x2d9/0x6f0 [ 85.318685] rtmsg_ifinfo_build_skb+0x68/0x120 [ 85.323270] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 85.328137] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 85.333055] rtnetlink_event+0xc2/0x110 [ 85.337042] notifier_call_chain+0xd6/0x150 [ 85.341374] raw_notifier_call_chain+0x11/0x20 [ 85.345948] call_netdevice_notifiers_info+0x4b/0x60 [ 85.351057] __netdev_upper_dev_link+0x18e/0x1f0 [ 85.355800] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 85.360545] netdev_master_upper_dev_link+0x14/0x20 [ 85.366132] batadv_hardif_enable_interface+0x1f4/0xa10 [ 85.371484] batadv_softif_slave_add+0x7f/0xd0 [ 85.376059] do_set_master+0x163/0x1f0 [ 85.380016] do_setlink+0x9dd/0x2c50 [ 85.383728] ? __lock_acquire+0x6a4/0x4500 [ 85.387966] ? rtnl_register+0x20/0x20 [ 85.391848] ? trace_hardirqs_on+0x10/0x10 [ 85.396210] ? trace_hardirqs_off+0x10/0x10 [ 85.400610] ? __lock_acquire+0x6a4/0x4500 [ 85.404999] ? trace_hardirqs_off+0x10/0x10 [ 85.409686] ? trace_hardirqs_off+0x10/0x10 [ 85.414307] ? __lock_is_held+0xb5/0x140 [ 85.418801] ? trace_hardirqs_off+0x10/0x10 [ 85.423138] ? trace_hardirqs_off+0x10/0x10 [ 85.427556] rtnl_newlink+0xe0c/0x1390 [ 85.431521] ? rtnl_link_unregister+0x270/0x270 [ 85.436359] ? finish_task_switch+0x178/0x650 [ 85.440934] ? finish_task_switch+0x14d/0x650 [ 85.445963] ? find_held_lock+0x36/0x1d0 [ 85.450894] ? __mutex_lock+0x8b7/0x14c0 [ 85.455134] ? lock_downgrade+0x7f0/0x7f0 [ 85.459309] ? do_raw_spin_unlock+0x16a/0x250 [ 85.463802] rtnetlink_rcv_msg+0x34c/0x9e0 [ 85.468144] ? rtnl_bridge_getlink+0x760/0x760 [ 85.472722] ? find_held_lock+0x36/0x1d0 [ 85.477134] netlink_rcv_skb+0x133/0x370 [ 85.481361] ? rtnl_bridge_getlink+0x760/0x760 [ 85.485942] ? netlink_ack+0xa00/0xa00 [ 85.489997] ? netlink_deliver_tap+0x8e/0x920 [ 85.494486] rtnetlink_rcv+0x10/0x20 [ 85.498192] netlink_unicast+0x40b/0x600 [ 85.502422] ? netlink_attachskb+0x6d0/0x6d0 [ 85.506821] netlink_sendmsg+0x730/0xbd0 [ 85.510890] ? netlink_unicast+0x600/0x600 [ 85.515118] ? selinux_socket_sendmsg+0x31/0x40 [ 85.519868] ? security_socket_sendmsg+0x6a/0xa0 [ 85.524610] ? netlink_unicast+0x600/0x600 [ 85.529647] sock_sendmsg+0xb5/0xf0 [ 85.533411] ___sys_sendmsg+0x625/0x920 [ 85.537385] ? trace_hardirqs_off+0x10/0x10 [ 85.541818] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 85.546561] ? find_held_lock+0x36/0x1d0 [ 85.550604] ? lock_downgrade+0x7f0/0x7f0 [ 85.554740] ? __fget+0x1ca/0x2f0 [ 85.558193] ? __fget_light+0x166/0x200 [ 85.562172] ? __fdget+0xe/0x10 [ 85.565450] ? sockfd_lookup_light+0x1c/0x150 [ 85.569978] __sys_sendmsg+0xc1/0x140 [ 85.574084] ? SyS_shutdown+0x180/0x180 [ 85.578136] ? __sb_end_write+0xa4/0xd0 [ 85.582173] ? mutex_unlock+0xd/0x10 [ 85.585878] ? do_syscall_64+0x4c/0x5b0 [ 85.589835] ? __sys_sendmsg+0x140/0x140 [ 85.593879] SyS_sendmsg+0xd/0x20 [ 85.597317] do_syscall_64+0x1c7/0x5b0 [ 85.601320] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 85.606153] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 85.611321] RIP: 0033:0x45b399 [ 85.614500] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.622196] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 85.629444] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 85.636701] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 85.643970] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 85.651229] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 85.661824] batman_adv: batadv0: Adding interface: veth0 [ 85.667325] batman_adv: batadv0: The MTU of interface veth0 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. [ 85.691978] batman_adv: batadv0: Interface activated: veth0 [ 85.699804] FAULT_INJECTION: forcing a failure. [ 85.699804] name failslab, interval 1, probability 0, space 0, times 0 [ 85.724695] CPU: 1 PID: 7945 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 85.732533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.741883] Call Trace: [ 85.744462] dump_stack+0xf7/0x13b [ 85.747999] should_fail.cold.3+0x105/0x14b [ 85.752316] should_failslab+0xba/0xf0 [ 85.756197] kmem_cache_alloc_node+0x287/0x790 [ 85.760771] __alloc_skb+0x92/0x500 [ 85.764380] ? skb_trim+0x160/0x160 [ 85.767987] ? if_nlmsg_size+0x2d9/0x6f0 [ 85.772022] rtmsg_ifinfo_build_skb+0x68/0x120 [ 85.776641] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 85.781505] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 85.786406] rtnetlink_event+0xc2/0x110 [ 85.790406] notifier_call_chain+0xd6/0x150 [ 85.794703] raw_notifier_call_chain+0x11/0x20 [ 85.799307] call_netdevice_notifiers_info+0x4b/0x60 [ 85.804393] __netdev_upper_dev_link+0x18e/0x1f0 [ 85.809129] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 85.813868] netdev_master_upper_dev_link+0x14/0x20 [ 85.818910] batadv_hardif_enable_interface+0x1f4/0xa10 [ 85.824356] batadv_softif_slave_add+0x7f/0xd0 [ 85.828929] do_set_master+0x163/0x1f0 [ 85.832851] do_setlink+0x9dd/0x2c50 [ 85.836557] ? rtnl_register+0x20/0x20 [ 85.840429] ? trace_hardirqs_off+0x10/0x10 [ 85.844727] ? trace_hardirqs_on+0x10/0x10 [ 85.848937] ? trace_hardirqs_off+0x10/0x10 [ 85.853234] ? find_held_lock+0x36/0x1d0 [ 85.857792] ? find_held_lock+0x36/0x1d0 [ 85.861936] ? free_one_page+0x9c4/0x1050 [ 85.866072] ? lock_downgrade+0x7f0/0x7f0 [ 85.870203] ? trace_hardirqs_off+0xd/0x10 [ 85.874420] ? bad_range+0x121/0x3a0 [ 85.878123] ? __this_cpu_preempt_check+0x13/0x20 [ 85.882953] ? do_raw_spin_unlock+0x16a/0x250 [ 85.887572] rtnl_newlink+0xe0c/0x1390 [ 85.891465] ? rtnl_link_unregister+0x270/0x270 [ 85.896122] ? finish_task_switch+0x448/0x650 [ 85.900606] ? find_held_lock+0x36/0x1d0 [ 85.904647] ? __mutex_lock+0x8b7/0x14c0 [ 85.908689] ? lock_downgrade+0x7f0/0x7f0 [ 85.912828] ? do_raw_spin_unlock+0x16a/0x250 [ 85.917310] rtnetlink_rcv_msg+0x34c/0x9e0 [ 85.921531] ? rtnl_bridge_getlink+0x760/0x760 [ 85.926104] ? find_held_lock+0x36/0x1d0 [ 85.930149] netlink_rcv_skb+0x133/0x370 [ 85.934281] ? rtnl_bridge_getlink+0x760/0x760 [ 85.938843] ? netlink_ack+0xa00/0xa00 [ 85.942716] ? netlink_deliver_tap+0x8e/0x920 [ 85.947201] rtnetlink_rcv+0x10/0x20 [ 85.950908] netlink_unicast+0x40b/0x600 [ 85.954957] ? netlink_attachskb+0x6d0/0x6d0 [ 85.959341] netlink_sendmsg+0x730/0xbd0 [ 85.963385] ? netlink_unicast+0x600/0x600 [ 85.967593] ? selinux_socket_sendmsg+0x31/0x40 [ 85.972244] ? security_socket_sendmsg+0x6a/0xa0 [ 85.976971] ? netlink_unicast+0x600/0x600 [ 85.981189] sock_sendmsg+0xb5/0xf0 [ 85.984790] ___sys_sendmsg+0x625/0x920 [ 85.988739] ? trace_hardirqs_off+0x10/0x10 [ 85.993033] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 85.997765] ? find_held_lock+0x36/0x1d0 [ 86.001810] ? lock_downgrade+0x7f0/0x7f0 [ 86.005937] ? __fget+0x1ca/0x2f0 [ 86.009364] ? __fget_light+0x166/0x200 [ 86.013322] ? __fdget+0xe/0x10 [ 86.016587] ? sockfd_lookup_light+0x1c/0x150 [ 86.021066] __sys_sendmsg+0xc1/0x140 [ 86.024840] ? SyS_shutdown+0x180/0x180 [ 86.028789] ? __sb_end_write+0xa4/0xd0 [ 86.032755] ? mutex_unlock+0xd/0x10 [ 86.036467] ? do_syscall_64+0x4c/0x5b0 [ 86.040417] ? __sys_sendmsg+0x140/0x140 [ 86.044463] SyS_sendmsg+0xd/0x20 [ 86.047894] do_syscall_64+0x1c7/0x5b0 [ 86.051764] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 86.056591] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 86.061756] RIP: 0033:0x45b399 [ 86.065703] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.073385] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 86.080631] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 86.087888] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 86.095134] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 86.102404] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 86.112691] batman_adv: batadv0: Adding interface: ip6gretap0 [ 86.127919] batman_adv: batadv0: The MTU of interface ip6gretap0 is too small (1434) 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. [ 86.160534] batman_adv: batadv0: Interface activated: ip6gretap0 [ 86.169326] FAULT_INJECTION: forcing a failure. [ 86.169326] name failslab, interval 1, probability 0, space 0, times 0 [ 86.181483] CPU: 1 PID: 7941 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 86.189543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.199237] Call Trace: [ 86.201825] dump_stack+0xf7/0x13b [ 86.205454] should_fail.cold.3+0x105/0x14b [ 86.209778] should_failslab+0xba/0xf0 [ 86.213680] kmem_cache_alloc_node+0x287/0x790 [ 86.218272] __alloc_skb+0x92/0x500 [ 86.221907] ? skb_trim+0x160/0x160 [ 86.225530] ? if_nlmsg_size+0x2d9/0x6f0 [ 86.229666] rtmsg_ifinfo_build_skb+0x68/0x120 [ 86.234254] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 86.239083] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 86.244005] rtnetlink_event+0xc2/0x110 [ 86.247967] notifier_call_chain+0xd6/0x150 [ 86.252267] raw_notifier_call_chain+0x11/0x20 [ 86.256913] call_netdevice_notifiers_info+0x4b/0x60 [ 86.262001] __netdev_upper_dev_link+0x18e/0x1f0 [ 86.266742] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 86.271546] netdev_master_upper_dev_link+0x14/0x20 [ 86.276542] batadv_hardif_enable_interface+0x1f4/0xa10 [ 86.281885] batadv_softif_slave_add+0x7f/0xd0 [ 86.286466] do_set_master+0x163/0x1f0 [ 86.290328] do_setlink+0x9dd/0x2c50 [ 86.294017] ? find_held_lock+0x36/0x1d0 [ 86.298064] ? rtnl_register+0x20/0x20 [ 86.301951] ? load_balance+0xb38/0x2190 [ 86.305992] ? lock_downgrade+0x7f0/0x7f0 [ 86.310130] ? lock_pin_lock+0x340/0x340 [ 86.314177] ? __lock_acquire+0x6a4/0x4500 [ 86.318391] ? trace_hardirqs_off+0x10/0x10 [ 86.322688] ? __lock_is_held+0xb5/0x140 [ 86.326743] ? trace_hardirqs_off+0x10/0x10 [ 86.331054] rtnl_newlink+0xe0c/0x1390 [ 86.334923] ? rtnl_link_unregister+0x270/0x270 [ 86.339565] ? finish_task_switch+0x178/0x650 [ 86.344031] ? finish_task_switch+0x14d/0x650 [ 86.348501] ? find_held_lock+0x36/0x1d0 [ 86.352561] ? __mutex_lock+0x8b7/0x14c0 [ 86.356594] ? lock_downgrade+0x7f0/0x7f0 [ 86.360722] ? do_raw_spin_unlock+0x16a/0x250 [ 86.365236] rtnetlink_rcv_msg+0x34c/0x9e0 [ 86.369458] ? rtnl_bridge_getlink+0x760/0x760 [ 86.374021] ? find_held_lock+0x36/0x1d0 [ 86.378067] netlink_rcv_skb+0x133/0x370 [ 86.382102] ? rtnl_bridge_getlink+0x760/0x760 [ 86.386656] ? netlink_ack+0xa00/0xa00 [ 86.390540] ? netlink_deliver_tap+0x8e/0x920 [ 86.395036] rtnetlink_rcv+0x10/0x20 [ 86.398735] netlink_unicast+0x40b/0x600 [ 86.402780] ? netlink_attachskb+0x6d0/0x6d0 [ 86.407184] netlink_sendmsg+0x730/0xbd0 [ 86.411283] ? netlink_unicast+0x600/0x600 [ 86.415496] ? selinux_socket_sendmsg+0x31/0x40 [ 86.420228] ? security_socket_sendmsg+0x6a/0xa0 [ 86.424963] ? netlink_unicast+0x600/0x600 [ 86.429180] sock_sendmsg+0xb5/0xf0 [ 86.432954] ___sys_sendmsg+0x625/0x920 [ 86.436957] ? trace_hardirqs_off+0x10/0x10 [ 86.441384] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 86.446194] ? find_held_lock+0x36/0x1d0 [ 86.450239] ? lock_downgrade+0x7f0/0x7f0 [ 86.454404] ? __fget+0x1ca/0x2f0 [ 86.457838] ? __fget_light+0x166/0x200 [ 86.461801] ? __fdget+0xe/0x10 [ 86.465069] ? sockfd_lookup_light+0x1c/0x150 [ 86.469539] __sys_sendmsg+0xc1/0x140 [ 86.473325] ? SyS_shutdown+0x180/0x180 [ 86.477384] ? __sb_end_write+0xa4/0xd0 [ 86.481338] ? mutex_unlock+0xd/0x10 [ 86.485131] ? do_syscall_64+0x4c/0x5b0 [ 86.489089] ? __sys_sendmsg+0x140/0x140 [ 86.493148] SyS_sendmsg+0xd/0x20 [ 86.496585] do_syscall_64+0x1c7/0x5b0 [ 86.500451] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 86.505286] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 86.510463] RIP: 0033:0x45b399 [ 86.513628] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.521326] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 86.528600] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 86.535863] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 86.543231] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 86.550536] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 86.561228] batman_adv: batadv0: Adding interface: bond0 [ 86.566750] batman_adv: batadv0: The MTU of interface bond0 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. [ 86.591772] batman_adv: batadv0: Interface activated: bond0 [ 86.598485] FAULT_INJECTION: forcing a failure. [ 86.598485] name failslab, interval 1, probability 0, space 0, times 0 [ 86.610603] CPU: 0 PID: 7950 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 86.618401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.627736] Call Trace: [ 86.630309] dump_stack+0xf7/0x13b [ 86.633925] should_fail.cold.3+0x105/0x14b [ 86.638230] should_failslab+0xba/0xf0 [ 86.642109] kmem_cache_alloc_node_trace+0x279/0x780 [ 86.647188] __kmalloc_node_track_caller+0x3c/0x70 [ 86.652111] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 86.657890] __alloc_skb+0xc1/0x500 [ 86.661490] ? skb_trim+0x160/0x160 [ 86.665090] ? if_nlmsg_size+0x2d9/0x6f0 [ 86.669169] rtmsg_ifinfo_build_skb+0x68/0x120 [ 86.673729] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 86.678557] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 86.683464] rtnetlink_event+0xc2/0x110 [ 86.687429] notifier_call_chain+0xd6/0x150 [ 86.691738] raw_notifier_call_chain+0x11/0x20 [ 86.696296] call_netdevice_notifiers_info+0x4b/0x60 [ 86.701386] __netdev_upper_dev_link+0x18e/0x1f0 [ 86.706114] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 86.710849] netdev_master_upper_dev_link+0x14/0x20 [ 86.715852] batadv_hardif_enable_interface+0x1f4/0xa10 [ 86.721189] batadv_softif_slave_add+0x7f/0xd0 [ 86.725754] do_set_master+0x163/0x1f0 [ 86.729614] do_setlink+0x9dd/0x2c50 [ 86.733310] ? __lock_acquire+0x6a4/0x4500 [ 86.737518] ? rtnl_register+0x20/0x20 [ 86.741380] ? trace_hardirqs_on+0x10/0x10 [ 86.745587] ? trace_hardirqs_off+0x10/0x10 [ 86.749878] ? __lock_acquire+0x6a4/0x4500 [ 86.754093] ? trace_hardirqs_off+0x10/0x10 [ 86.758385] ? trace_hardirqs_off+0x10/0x10 [ 86.762679] ? __lock_is_held+0xb5/0x140 [ 86.766728] ? trace_hardirqs_off+0x10/0x10 [ 86.771037] rtnl_newlink+0xe0c/0x1390 [ 86.774901] ? rtnl_link_unregister+0x270/0x270 [ 86.779538] ? finish_task_switch+0x178/0x650 [ 86.784003] ? finish_task_switch+0x14d/0x650 [ 86.788471] ? find_held_lock+0x36/0x1d0 [ 86.792515] ? __mutex_lock+0x8b7/0x14c0 [ 86.796548] ? lock_downgrade+0x7f0/0x7f0 [ 86.800670] ? do_raw_spin_unlock+0x16a/0x250 [ 86.805155] rtnetlink_rcv_msg+0x34c/0x9e0 [ 86.809367] ? rtnl_bridge_getlink+0x760/0x760 [ 86.813929] ? find_held_lock+0x36/0x1d0 [ 86.817965] netlink_rcv_skb+0x133/0x370 [ 86.822085] ? rtnl_bridge_getlink+0x760/0x760 [ 86.826638] ? netlink_ack+0xa00/0xa00 [ 86.830497] ? netlink_deliver_tap+0x8e/0x920 [ 86.834966] rtnetlink_rcv+0x10/0x20 [ 86.838649] netlink_unicast+0x40b/0x600 [ 86.842691] ? netlink_attachskb+0x6d0/0x6d0 [ 86.847093] netlink_sendmsg+0x730/0xbd0 [ 86.851144] ? netlink_unicast+0x600/0x600 [ 86.855352] ? selinux_socket_sendmsg+0x31/0x40 [ 86.859994] ? security_socket_sendmsg+0x6a/0xa0 [ 86.864720] ? netlink_unicast+0x600/0x600 [ 86.868940] sock_sendmsg+0xb5/0xf0 [ 86.872539] ___sys_sendmsg+0x625/0x920 [ 86.876486] ? trace_hardirqs_off+0x10/0x10 [ 86.880790] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 86.885527] ? find_held_lock+0x36/0x1d0 [ 86.889562] ? lock_downgrade+0x7f0/0x7f0 [ 86.893685] ? __fget+0x1ca/0x2f0 [ 86.897120] ? __fget_light+0x166/0x200 [ 86.901072] ? __fdget+0xe/0x10 [ 86.904324] ? sockfd_lookup_light+0x1c/0x150 [ 86.908789] __sys_sendmsg+0xc1/0x140 [ 86.912559] ? SyS_shutdown+0x180/0x180 [ 86.916505] ? __sb_end_write+0xa4/0xd0 [ 86.920453] ? mutex_unlock+0xd/0x10 [ 86.924151] ? do_syscall_64+0x4c/0x5b0 [ 86.928097] ? __sys_sendmsg+0x140/0x140 [ 86.932129] SyS_sendmsg+0xd/0x20 [ 86.935555] do_syscall_64+0x1c7/0x5b0 [ 86.939440] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 86.945213] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 86.950382] RIP: 0033:0x45b399 [ 86.953543] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.961222] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 86.968465] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 86.975755] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 86.983951] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 86.991192] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 87.016234] batman_adv: batadv0: Adding interface: team0 [ 87.027588] batman_adv: batadv0: The MTU of interface team0 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. [ 87.052421] batman_adv: batadv0: Interface activated: team0 [ 87.058919] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 87.077873] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 87.097102] FAULT_INJECTION: forcing a failure. [ 87.097102] name failslab, interval 1, probability 0, space 0, times 0 [ 87.123622] CPU: 0 PID: 7957 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 87.131441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 87.140791] Call Trace: [ 87.143376] dump_stack+0xf7/0x13b [ 87.146915] should_fail.cold.3+0x105/0x14b [ 87.151232] should_failslab+0xba/0xf0 [ 87.155123] kmem_cache_alloc_node_trace+0x279/0x780 [ 87.160228] __kmalloc_node_track_caller+0x3c/0x70 [ 87.165167] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 87.169919] __alloc_skb+0xc1/0x500 [ 87.173538] ? skb_trim+0x160/0x160 [ 87.177166] ? if_nlmsg_size+0x2d9/0x6f0 [ 87.181316] rtmsg_ifinfo_build_skb+0x68/0x120 [ 87.186842] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 87.191661] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 87.196572] rtnetlink_event+0xc2/0x110 [ 87.200529] notifier_call_chain+0xd6/0x150 [ 87.204841] raw_notifier_call_chain+0x11/0x20 [ 87.209571] call_netdevice_notifiers_info+0x4b/0x60 [ 87.214662] __netdev_upper_dev_link+0x18e/0x1f0 [ 87.219397] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 87.224141] netdev_master_upper_dev_link+0x14/0x20 [ 87.229298] batadv_hardif_enable_interface+0x1f4/0xa10 [ 87.234640] batadv_softif_slave_add+0x7f/0xd0 [ 87.239224] do_set_master+0x163/0x1f0 [ 87.243107] do_setlink+0x9dd/0x2c50 [ 87.246820] ? rtnl_register+0x20/0x20 [ 87.250800] ? __lock_acquire+0x6a4/0x4500 [ 87.255032] ? trace_hardirqs_off+0x10/0x10 [ 87.259491] rtnl_newlink+0xe0c/0x1390 [ 87.263372] ? rtnl_link_unregister+0x270/0x270 [ 87.268015] ? finish_task_switch+0x178/0x650 [ 87.273263] ? finish_task_switch+0x14d/0x650 [ 87.277737] ? find_held_lock+0x36/0x1d0 [ 87.281777] ? __mutex_lock+0x8b7/0x14c0 [ 87.285826] ? lock_downgrade+0x7f0/0x7f0 [ 87.289956] ? do_raw_spin_unlock+0x16a/0x250 [ 87.294439] rtnetlink_rcv_msg+0x34c/0x9e0 [ 87.298670] ? rtnl_bridge_getlink+0x760/0x760 [ 87.303250] ? find_held_lock+0x36/0x1d0 [ 87.307302] netlink_rcv_skb+0x133/0x370 [ 87.311349] ? rtnl_bridge_getlink+0x760/0x760 [ 87.315913] ? netlink_ack+0xa00/0xa00 [ 87.319789] ? netlink_deliver_tap+0x8e/0x920 [ 87.324264] rtnetlink_rcv+0x10/0x20 [ 87.327961] netlink_unicast+0x40b/0x600 [ 87.332062] ? netlink_attachskb+0x6d0/0x6d0 [ 87.336542] netlink_sendmsg+0x730/0xbd0 [ 87.340658] ? netlink_unicast+0x600/0x600 [ 87.344882] ? selinux_socket_sendmsg+0x31/0x40 [ 87.349534] ? security_socket_sendmsg+0x6a/0xa0 [ 87.354276] ? netlink_unicast+0x600/0x600 [ 87.358496] sock_sendmsg+0xb5/0xf0 [ 87.362195] ___sys_sendmsg+0x625/0x920 [ 87.366153] ? trace_hardirqs_off+0x10/0x10 [ 87.370470] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 87.375231] ? find_held_lock+0x36/0x1d0 [ 87.379291] ? lock_downgrade+0x7f0/0x7f0 [ 87.383420] ? __fget+0x1ca/0x2f0 [ 87.386855] ? __fget_light+0x166/0x200 [ 87.390822] ? __fdget+0xe/0x10 [ 87.394097] ? sockfd_lookup_light+0x1c/0x150 [ 87.398570] __sys_sendmsg+0xc1/0x140 [ 87.402393] ? SyS_shutdown+0x180/0x180 [ 87.406887] ? __sb_end_write+0xa4/0xd0 [ 87.410900] ? mutex_unlock+0xd/0x10 [ 87.414599] ? do_syscall_64+0x4c/0x5b0 [ 87.418623] ? __sys_sendmsg+0x140/0x140 [ 87.422667] SyS_sendmsg+0xd/0x20 [ 87.426107] do_syscall_64+0x1c7/0x5b0 [ 87.430006] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 87.434849] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 87.440037] RIP: 0033:0x45b399 [ 87.443229] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 87.450925] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 87.458173] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 87.465437] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 87.472704] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 87.479970] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 87.492798] batman_adv: batadv0: Adding interface: veth0_to_bridge [ 87.499281] batman_adv: batadv0: The MTU of interface veth0_to_bridge 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. [ 87.526418] batman_adv: batadv0: Interface activated: veth0_to_bridge [ 87.533469] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 87.549240] FAULT_INJECTION: forcing a failure. [ 87.549240] name failslab, interval 1, probability 0, space 0, times 0 [ 87.585185] CPU: 1 PID: 7969 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 87.593006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 87.602353] Call Trace: [ 87.604939] dump_stack+0xf7/0x13b [ 87.608486] should_fail.cold.3+0x105/0x14b [ 87.612808] should_failslab+0xba/0xf0 [ 87.616696] kmem_cache_alloc_node_trace+0x279/0x780 [ 87.621801] __kmalloc_node_track_caller+0x3c/0x70 [ 87.626718] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 87.631457] __alloc_skb+0xc1/0x500 [ 87.635061] ? skb_trim+0x160/0x160 [ 87.638869] ? if_nlmsg_size+0x2d9/0x6f0 [ 87.643063] rtmsg_ifinfo_build_skb+0x68/0x120 [ 87.647639] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 87.653684] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 87.658596] rtnetlink_event+0xc2/0x110 [ 87.662640] notifier_call_chain+0xd6/0x150 [ 87.666944] raw_notifier_call_chain+0x11/0x20 [ 87.671503] call_netdevice_notifiers_info+0x4b/0x60 [ 87.676584] __netdev_upper_dev_link+0x18e/0x1f0 [ 87.681316] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 87.686048] netdev_master_upper_dev_link+0x14/0x20 [ 87.691060] batadv_hardif_enable_interface+0x1f4/0xa10 [ 87.696419] batadv_softif_slave_add+0x7f/0xd0 [ 87.700982] do_set_master+0x163/0x1f0 [ 87.704856] do_setlink+0x9dd/0x2c50 [ 87.708550] ? find_held_lock+0x36/0x1d0 [ 87.712598] ? rtnl_register+0x20/0x20 [ 87.716475] ? load_balance+0xb38/0x2190 [ 87.720526] ? lock_downgrade+0x7f0/0x7f0 [ 87.724668] ? lock_pin_lock+0x340/0x340 [ 87.728719] ? __lock_acquire+0x6a4/0x4500 [ 87.732930] ? trace_hardirqs_off+0x10/0x10 [ 87.737229] ? __lock_is_held+0xb5/0x140 [ 87.742925] ? trace_hardirqs_off+0x10/0x10 [ 87.747227] rtnl_newlink+0xe0c/0x1390 [ 87.751114] ? rtnl_link_unregister+0x270/0x270 [ 87.755762] ? finish_task_switch+0x178/0x650 [ 87.760249] ? finish_task_switch+0x14d/0x650 [ 87.764720] ? find_held_lock+0x36/0x1d0 [ 87.768760] ? __mutex_lock+0x8b7/0x14c0 [ 87.772803] ? lock_downgrade+0x7f0/0x7f0 [ 87.776942] ? do_raw_spin_unlock+0x16a/0x250 [ 87.781440] rtnetlink_rcv_msg+0x34c/0x9e0 [ 87.785665] ? rtnl_bridge_getlink+0x760/0x760 [ 87.790223] ? find_held_lock+0x36/0x1d0 [ 87.794277] netlink_rcv_skb+0x133/0x370 [ 87.798317] ? rtnl_bridge_getlink+0x760/0x760 [ 87.802889] ? netlink_ack+0xa00/0xa00 [ 87.806752] ? netlink_deliver_tap+0x8e/0x920 [ 87.811253] rtnetlink_rcv+0x10/0x20 [ 87.814940] netlink_unicast+0x40b/0x600 [ 87.818978] ? netlink_attachskb+0x6d0/0x6d0 [ 87.823365] netlink_sendmsg+0x730/0xbd0 [ 87.827435] ? netlink_unicast+0x600/0x600 [ 87.831657] ? selinux_socket_sendmsg+0x31/0x40 [ 87.836314] ? security_socket_sendmsg+0x6a/0xa0 [ 87.841054] ? netlink_unicast+0x600/0x600 [ 87.845279] sock_sendmsg+0xb5/0xf0 [ 87.848895] ___sys_sendmsg+0x625/0x920 [ 87.853080] ? trace_hardirqs_off+0x10/0x10 [ 87.857380] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 87.862199] ? find_held_lock+0x36/0x1d0 [ 87.866414] ? lock_downgrade+0x7f0/0x7f0 [ 87.870544] ? __fget+0x1ca/0x2f0 [ 87.873994] ? __fget_light+0x166/0x200 [ 87.877960] ? __fdget+0xe/0x10 [ 87.881239] ? sockfd_lookup_light+0x1c/0x150 [ 87.885708] __sys_sendmsg+0xc1/0x140 [ 87.889495] ? SyS_shutdown+0x180/0x180 [ 87.893464] ? __sb_end_write+0xa4/0xd0 [ 87.897417] ? mutex_unlock+0xd/0x10 [ 87.901107] ? do_syscall_64+0x4c/0x5b0 [ 87.905075] ? __sys_sendmsg+0x140/0x140 [ 87.909138] SyS_sendmsg+0xd/0x20 [ 87.912583] do_syscall_64+0x1c7/0x5b0 [ 87.916451] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 87.921268] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 87.926445] RIP: 0033:0x45b399 [ 87.929625] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 87.937309] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 87.944555] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 87.951807] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 87.959087] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 87.966438] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 87.982664] batman_adv: batadv0: Adding interface: dummy0 2020/06/04 21:06:06 executed programs: 54 [ 87.988351] batman_adv: batadv0: The MTU of interface dummy0 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. [ 88.012972] batman_adv: batadv0: Interface activated: dummy0 [ 88.020510] FAULT_INJECTION: forcing a failure. [ 88.020510] name failslab, interval 1, probability 0, space 0, times 0 [ 88.043201] CPU: 0 PID: 7981 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 88.051020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.060485] Call Trace: [ 88.063078] dump_stack+0xf7/0x13b [ 88.066619] should_fail.cold.3+0x105/0x14b [ 88.070938] should_failslab+0xba/0xf0 [ 88.074850] kmem_cache_alloc_node_trace+0x279/0x780 [ 88.080046] __kmalloc_node_track_caller+0x3c/0x70 [ 88.084975] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 88.089727] __alloc_skb+0xc1/0x500 [ 88.093349] ? skb_trim+0x160/0x160 [ 88.096969] ? if_nlmsg_size+0x2d9/0x6f0 [ 88.101026] rtmsg_ifinfo_build_skb+0x68/0x120 [ 88.105607] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 88.110504] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 88.115431] rtnetlink_event+0xc2/0x110 [ 88.120107] notifier_call_chain+0xd6/0x150 [ 88.124504] raw_notifier_call_chain+0x11/0x20 [ 88.129077] call_netdevice_notifiers_info+0x4b/0x60 [ 88.134177] __netdev_upper_dev_link+0x18e/0x1f0 [ 88.138963] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 88.143707] netdev_master_upper_dev_link+0x14/0x20 [ 88.148854] batadv_hardif_enable_interface+0x1f4/0xa10 [ 88.154207] batadv_softif_slave_add+0x7f/0xd0 [ 88.158981] do_set_master+0x163/0x1f0 [ 88.162856] do_setlink+0x9dd/0x2c50 [ 88.166560] ? find_held_lock+0x36/0x1d0 [ 88.170686] ? rtnl_register+0x20/0x20 [ 88.174776] ? load_balance+0xb38/0x2190 [ 88.178818] ? lock_downgrade+0x7f0/0x7f0 [ 88.182963] ? lock_pin_lock+0x340/0x340 [ 88.187016] ? __lock_acquire+0x6a4/0x4500 [ 88.191248] ? trace_hardirqs_off+0x10/0x10 [ 88.195558] ? __lock_is_held+0xb5/0x140 [ 88.199684] ? trace_hardirqs_off+0x10/0x10 [ 88.203997] rtnl_newlink+0xe0c/0x1390 [ 88.207880] ? rtnl_link_unregister+0x270/0x270 [ 88.212547] ? finish_task_switch+0x178/0x650 [ 88.217030] ? finish_task_switch+0x14d/0x650 [ 88.221513] ? find_held_lock+0x36/0x1d0 [ 88.225660] ? __mutex_lock+0x8b7/0x14c0 [ 88.229706] ? lock_downgrade+0x7f0/0x7f0 [ 88.233849] ? do_raw_spin_unlock+0x16a/0x250 [ 88.238376] rtnetlink_rcv_msg+0x34c/0x9e0 [ 88.242616] ? rtnl_bridge_getlink+0x760/0x760 [ 88.247178] ? find_held_lock+0x36/0x1d0 [ 88.251238] netlink_rcv_skb+0x133/0x370 [ 88.255275] ? rtnl_bridge_getlink+0x760/0x760 [ 88.259833] ? netlink_ack+0xa00/0xa00 [ 88.263699] ? netlink_deliver_tap+0x8e/0x920 [ 88.268201] rtnetlink_rcv+0x10/0x20 [ 88.271897] netlink_unicast+0x40b/0x600 [ 88.275958] ? netlink_attachskb+0x6d0/0x6d0 [ 88.280351] netlink_sendmsg+0x730/0xbd0 [ 88.284389] ? netlink_unicast+0x600/0x600 [ 88.288614] ? selinux_socket_sendmsg+0x31/0x40 [ 88.293456] ? security_socket_sendmsg+0x6a/0xa0 [ 88.298202] ? netlink_unicast+0x600/0x600 [ 88.302423] sock_sendmsg+0xb5/0xf0 [ 88.306046] ___sys_sendmsg+0x625/0x920 [ 88.310027] ? trace_hardirqs_off+0x10/0x10 [ 88.314325] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 88.319074] ? find_held_lock+0x36/0x1d0 [ 88.323132] ? lock_downgrade+0x7f0/0x7f0 [ 88.327261] ? __fget+0x1ca/0x2f0 [ 88.330699] ? __fget_light+0x166/0x200 [ 88.334650] ? __fdget+0xe/0x10 [ 88.337911] ? sockfd_lookup_light+0x1c/0x150 [ 88.342394] __sys_sendmsg+0xc1/0x140 [ 88.346175] ? SyS_shutdown+0x180/0x180 [ 88.350138] ? __sb_end_write+0xa4/0xd0 [ 88.354109] ? mutex_unlock+0xd/0x10 [ 88.357815] ? do_syscall_64+0x4c/0x5b0 [ 88.361879] ? __sys_sendmsg+0x140/0x140 [ 88.365980] SyS_sendmsg+0xd/0x20 [ 88.369519] do_syscall_64+0x1c7/0x5b0 [ 88.373479] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 88.378351] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 88.383525] RIP: 0033:0x45b399 [ 88.386695] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.394391] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 88.401641] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 88.408902] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 88.416168] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 88.423446] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 88.434930] batman_adv: batadv0: Adding interface: team0 [ 88.441433] batman_adv: batadv0: The MTU of interface team0 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. [ 88.465995] batman_adv: batadv0: Interface activated: team0 [ 88.472412] FAULT_INJECTION: forcing a failure. [ 88.472412] name failslab, interval 1, probability 0, space 0, times 0 [ 88.487996] CPU: 0 PID: 7985 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 88.495806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.505157] Call Trace: [ 88.507748] dump_stack+0xf7/0x13b [ 88.511288] should_fail.cold.3+0x105/0x14b [ 88.515614] should_failslab+0xba/0xf0 [ 88.519489] kmem_cache_alloc_node_trace+0x279/0x780 [ 88.524719] __kmalloc_node_track_caller+0x3c/0x70 [ 88.529646] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 88.534394] __alloc_skb+0xc1/0x500 [ 88.538000] ? skb_trim+0x160/0x160 [ 88.541635] ? if_nlmsg_size+0x2d9/0x6f0 [ 88.545756] rtmsg_ifinfo_build_skb+0x68/0x120 [ 88.550394] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 88.555218] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 88.560181] rtnetlink_event+0xc2/0x110 [ 88.564135] notifier_call_chain+0xd6/0x150 [ 88.568542] raw_notifier_call_chain+0x11/0x20 [ 88.573115] call_netdevice_notifiers_info+0x4b/0x60 [ 88.578206] __netdev_upper_dev_link+0x18e/0x1f0 [ 88.582950] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 88.587684] netdev_master_upper_dev_link+0x14/0x20 [ 88.593022] batadv_hardif_enable_interface+0x1f4/0xa10 [ 88.598365] batadv_softif_slave_add+0x7f/0xd0 [ 88.602921] do_set_master+0x163/0x1f0 [ 88.606792] do_setlink+0x9dd/0x2c50 [ 88.610516] ? rtnl_register+0x20/0x20 [ 88.614385] ? __lock_acquire+0x6a4/0x4500 [ 88.618611] ? trace_hardirqs_off+0x10/0x10 [ 88.622927] rtnl_newlink+0xe0c/0x1390 [ 88.626843] ? rtnl_link_unregister+0x270/0x270 [ 88.631488] ? finish_task_switch+0x178/0x650 [ 88.635973] ? finish_task_switch+0x14d/0x650 [ 88.640446] ? find_held_lock+0x36/0x1d0 [ 88.644489] ? __mutex_lock+0x8b7/0x14c0 [ 88.648538] ? lock_downgrade+0x7f0/0x7f0 [ 88.652808] ? do_raw_spin_unlock+0x16a/0x250 [ 88.657302] rtnetlink_rcv_msg+0x34c/0x9e0 [ 88.661515] ? rtnl_bridge_getlink+0x760/0x760 [ 88.666098] ? find_held_lock+0x36/0x1d0 [ 88.670309] netlink_rcv_skb+0x133/0x370 [ 88.674347] ? rtnl_bridge_getlink+0x760/0x760 [ 88.678903] ? netlink_ack+0xa00/0xa00 [ 88.682792] ? netlink_deliver_tap+0x8e/0x920 [ 88.687276] rtnetlink_rcv+0x10/0x20 [ 88.690987] netlink_unicast+0x40b/0x600 [ 88.695023] ? netlink_attachskb+0x6d0/0x6d0 [ 88.699420] netlink_sendmsg+0x730/0xbd0 [ 88.703542] ? netlink_unicast+0x600/0x600 [ 88.707755] ? selinux_socket_sendmsg+0x31/0x40 [ 88.712416] ? security_socket_sendmsg+0x6a/0xa0 [ 88.717233] ? netlink_unicast+0x600/0x600 [ 88.721453] sock_sendmsg+0xb5/0xf0 [ 88.725070] ___sys_sendmsg+0x625/0x920 [ 88.729021] ? trace_hardirqs_off+0x10/0x10 [ 88.733328] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 88.738240] ? find_held_lock+0x36/0x1d0 [ 88.742288] ? lock_downgrade+0x7f0/0x7f0 [ 88.746429] ? __fget+0x1ca/0x2f0 [ 88.749858] ? __fget_light+0x166/0x200 [ 88.753808] ? __fdget+0xe/0x10 [ 88.757147] ? sockfd_lookup_light+0x1c/0x150 [ 88.761630] __sys_sendmsg+0xc1/0x140 [ 88.765405] ? SyS_shutdown+0x180/0x180 [ 88.769368] ? __sb_end_write+0xa4/0xd0 [ 88.773322] ? mutex_unlock+0xd/0x10 [ 88.777019] ? do_syscall_64+0x4c/0x5b0 [ 88.781060] ? __sys_sendmsg+0x140/0x140 [ 88.785115] SyS_sendmsg+0xd/0x20 [ 88.788550] do_syscall_64+0x1c7/0x5b0 [ 88.792422] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 88.797326] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 88.802489] RIP: 0033:0x45b399 [ 88.805687] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 88.813393] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 88.820644] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 88.827895] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 88.835245] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 88.842576] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 88.853892] batman_adv: batadv0: Adding interface: team0 [ 88.859465] batman_adv: batadv0: The MTU of interface team0 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. [ 88.884340] batman_adv: batadv0: Interface activated: team0 [ 88.890879] FAULT_INJECTION: forcing a failure. [ 88.890879] name failslab, interval 1, probability 0, space 0, times 0 [ 88.903539] CPU: 0 PID: 7987 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 88.911335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.920688] Call Trace: [ 88.923269] dump_stack+0xf7/0x13b [ 88.926808] should_fail.cold.3+0x105/0x14b [ 88.931128] should_failslab+0xba/0xf0 [ 88.935009] kmem_cache_alloc_node+0x287/0x790 [ 88.939588] __alloc_skb+0x92/0x500 [ 88.943216] ? skb_trim+0x160/0x160 [ 88.946836] ? if_nlmsg_size+0x2d9/0x6f0 [ 88.950900] rtmsg_ifinfo_build_skb+0x68/0x120 [ 88.955479] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 88.960302] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 88.965222] rtnetlink_event+0xc2/0x110 [ 88.969186] notifier_call_chain+0xd6/0x150 [ 88.973631] raw_notifier_call_chain+0x11/0x20 [ 88.978200] call_netdevice_notifiers_info+0x4b/0x60 [ 88.983287] __netdev_upper_dev_link+0x18e/0x1f0 [ 88.988066] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 88.992878] netdev_master_upper_dev_link+0x14/0x20 [ 88.997879] batadv_hardif_enable_interface+0x1f4/0xa10 [ 89.003230] batadv_softif_slave_add+0x7f/0xd0 [ 89.007800] do_set_master+0x163/0x1f0 [ 89.011757] do_setlink+0x9dd/0x2c50 [ 89.015467] ? find_held_lock+0x36/0x1d0 [ 89.019516] ? rtnl_register+0x20/0x20 [ 89.023393] ? load_balance+0xb38/0x2190 [ 89.027435] ? lock_downgrade+0x7f0/0x7f0 [ 89.031571] ? lock_pin_lock+0x340/0x340 [ 89.035618] ? __lock_acquire+0x6a4/0x4500 [ 89.039837] ? trace_hardirqs_off+0x10/0x10 [ 89.044146] ? __lock_is_held+0xb5/0x140 [ 89.048184] ? trace_hardirqs_off+0x10/0x10 [ 89.052594] rtnl_newlink+0xe0c/0x1390 [ 89.056474] ? rtnl_link_unregister+0x270/0x270 [ 89.061122] ? finish_task_switch+0x178/0x650 [ 89.065589] ? finish_task_switch+0x14d/0x650 [ 89.070060] ? find_held_lock+0x36/0x1d0 [ 89.074097] ? __mutex_lock+0x8b7/0x14c0 [ 89.078142] ? lock_downgrade+0x7f0/0x7f0 [ 89.082271] ? do_raw_spin_unlock+0x16a/0x250 [ 89.086793] rtnetlink_rcv_msg+0x34c/0x9e0 [ 89.091033] ? rtnl_bridge_getlink+0x760/0x760 [ 89.095591] ? find_held_lock+0x36/0x1d0 [ 89.099639] netlink_rcv_skb+0x133/0x370 [ 89.103721] ? rtnl_bridge_getlink+0x760/0x760 [ 89.108282] ? netlink_ack+0xa00/0xa00 [ 89.112146] ? netlink_deliver_tap+0x8e/0x920 [ 89.116625] rtnetlink_rcv+0x10/0x20 [ 89.120334] netlink_unicast+0x40b/0x600 [ 89.124397] ? netlink_attachskb+0x6d0/0x6d0 [ 89.128799] netlink_sendmsg+0x730/0xbd0 [ 89.132843] ? netlink_unicast+0x600/0x600 [ 89.137058] ? selinux_socket_sendmsg+0x31/0x40 [ 89.141712] ? security_socket_sendmsg+0x6a/0xa0 [ 89.146444] ? netlink_unicast+0x600/0x600 [ 89.150671] sock_sendmsg+0xb5/0xf0 [ 89.154273] ___sys_sendmsg+0x625/0x920 [ 89.158227] ? trace_hardirqs_off+0x10/0x10 [ 89.162562] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 89.167294] ? find_held_lock+0x36/0x1d0 [ 89.171341] ? lock_downgrade+0x7f0/0x7f0 [ 89.175474] ? __fget+0x1ca/0x2f0 [ 89.178936] ? __fget_light+0x166/0x200 [ 89.182893] ? __fdget+0xe/0x10 [ 89.186161] ? sockfd_lookup_light+0x1c/0x150 [ 89.190630] __sys_sendmsg+0xc1/0x140 [ 89.194420] ? SyS_shutdown+0x180/0x180 [ 89.198377] ? __sb_end_write+0xa4/0xd0 [ 89.202336] ? mutex_unlock+0xd/0x10 [ 89.206027] ? do_syscall_64+0x4c/0x5b0 [ 89.209975] ? __sys_sendmsg+0x140/0x140 [ 89.214006] SyS_sendmsg+0xd/0x20 [ 89.217444] do_syscall_64+0x1c7/0x5b0 [ 89.221314] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 89.226134] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 89.231314] RIP: 0033:0x45b399 [ 89.234476] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 89.242158] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 89.249412] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 89.256675] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 89.264040] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 89.271292] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 89.280443] batman_adv: batadv0: Adding interface: veth1_to_bridge [ 89.286836] batman_adv: batadv0: The MTU of interface veth1_to_bridge 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. [ 89.312163] batman_adv: batadv0: Interface activated: veth1_to_bridge [ 89.319469] FAULT_INJECTION: forcing a failure. [ 89.319469] name failslab, interval 1, probability 0, space 0, times 0 [ 89.342785] CPU: 1 PID: 7989 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 89.350599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.359953] Call Trace: [ 89.362536] dump_stack+0xf7/0x13b [ 89.366068] should_fail.cold.3+0x105/0x14b [ 89.370378] should_failslab+0xba/0xf0 [ 89.374240] kmem_cache_alloc_node+0x287/0x790 [ 89.378800] __alloc_skb+0x92/0x500 [ 89.382400] ? skb_trim+0x160/0x160 [ 89.386002] ? if_nlmsg_size+0x2d9/0x6f0 [ 89.390039] rtmsg_ifinfo_build_skb+0x68/0x120 [ 89.394773] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 89.399596] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 89.404510] rtnetlink_event+0xc2/0x110 [ 89.408551] notifier_call_chain+0xd6/0x150 [ 89.412856] raw_notifier_call_chain+0x11/0x20 [ 89.417481] call_netdevice_notifiers_info+0x4b/0x60 [ 89.422577] __netdev_upper_dev_link+0x18e/0x1f0 [ 89.427363] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 89.432097] netdev_master_upper_dev_link+0x14/0x20 [ 89.437106] batadv_hardif_enable_interface+0x1f4/0xa10 [ 89.442462] batadv_softif_slave_add+0x7f/0xd0 [ 89.447022] do_set_master+0x163/0x1f0 [ 89.450896] do_setlink+0x9dd/0x2c50 [ 89.454601] ? find_held_lock+0x36/0x1d0 [ 89.461416] ? rtnl_register+0x20/0x20 [ 89.465288] ? load_balance+0xb38/0x2190 [ 89.469322] ? lock_downgrade+0x7f0/0x7f0 [ 89.473548] ? lock_pin_lock+0x340/0x340 [ 89.477587] ? __lock_acquire+0x6a4/0x4500 [ 89.481892] ? trace_hardirqs_off+0x10/0x10 [ 89.486193] ? __lock_is_held+0xb5/0x140 [ 89.490323] ? trace_hardirqs_off+0x10/0x10 [ 89.494624] rtnl_newlink+0xe0c/0x1390 [ 89.498503] ? trace_hardirqs_on_caller+0x40c/0x580 [ 89.503505] ? rtnl_link_unregister+0x270/0x270 [ 89.508226] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 89.512969] ? find_held_lock+0x36/0x1d0 [ 89.517073] ? __mutex_lock+0x8b7/0x14c0 [ 89.521156] ? lock_downgrade+0x7f0/0x7f0 [ 89.525281] ? __list_del_entry_valid+0xb0/0xf3 [ 89.529926] ? do_raw_spin_unlock+0x16a/0x250 [ 89.534422] rtnetlink_rcv_msg+0x34c/0x9e0 [ 89.538642] ? rtnl_bridge_getlink+0x760/0x760 [ 89.543202] ? find_held_lock+0x36/0x1d0 [ 89.547251] netlink_rcv_skb+0x133/0x370 [ 89.551308] ? rtnl_bridge_getlink+0x760/0x760 [ 89.555871] ? netlink_ack+0xa00/0xa00 [ 89.559735] ? netlink_deliver_tap+0x8e/0x920 [ 89.564218] rtnetlink_rcv+0x10/0x20 [ 89.567918] netlink_unicast+0x40b/0x600 [ 89.571956] ? netlink_attachskb+0x6d0/0x6d0 [ 89.576359] netlink_sendmsg+0x730/0xbd0 [ 89.580410] ? netlink_unicast+0x600/0x600 [ 89.584636] ? selinux_socket_sendmsg+0x31/0x40 [ 89.589292] ? security_socket_sendmsg+0x6a/0xa0 [ 89.594021] ? netlink_unicast+0x600/0x600 [ 89.598235] sock_sendmsg+0xb5/0xf0 [ 89.601844] ___sys_sendmsg+0x625/0x920 [ 89.605795] ? trace_hardirqs_off+0x10/0x10 [ 89.610090] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 89.614846] ? find_held_lock+0x36/0x1d0 [ 89.618902] ? lock_downgrade+0x7f0/0x7f0 [ 89.623027] ? __fget+0x1ca/0x2f0 [ 89.626455] ? __fget_light+0x166/0x200 [ 89.630402] ? __fdget+0xe/0x10 [ 89.633656] ? sockfd_lookup_light+0x1c/0x150 [ 89.638123] __sys_sendmsg+0xc1/0x140 [ 89.641896] ? SyS_shutdown+0x180/0x180 [ 89.645846] ? __sb_end_write+0xa4/0xd0 [ 89.649807] ? mutex_unlock+0xd/0x10 [ 89.653507] ? do_syscall_64+0x4c/0x5b0 [ 89.657476] ? __sys_sendmsg+0x140/0x140 [ 89.661510] SyS_sendmsg+0xd/0x20 [ 89.664946] do_syscall_64+0x1c7/0x5b0 [ 89.668807] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 89.673634] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 89.678803] RIP: 0033:0x45b399 [ 89.681983] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 89.689664] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 89.696928] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 89.704173] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 89.711416] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 89.718745] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 89.731260] batman_adv: batadv0: Adding interface: team0 [ 89.736929] batman_adv: batadv0: The MTU of interface team0 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. [ 89.762055] batman_adv: batadv0: Interface activated: team0 [ 89.787534] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 89.800240] FAULT_INJECTION: forcing a failure. [ 89.800240] name failslab, interval 1, probability 0, space 0, times 0 [ 89.839002] CPU: 0 PID: 8012 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 89.846917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.856260] Call Trace: [ 89.858846] dump_stack+0xf7/0x13b [ 89.862376] should_fail.cold.3+0x105/0x14b [ 89.866697] should_failslab+0xba/0xf0 [ 89.870586] kmem_cache_alloc_node_trace+0x279/0x780 [ 89.875676] __kmalloc_node_track_caller+0x3c/0x70 [ 89.880629] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 89.885489] __alloc_skb+0xc1/0x500 [ 89.889113] ? skb_trim+0x160/0x160 [ 89.892731] ? if_nlmsg_size+0x2d9/0x6f0 [ 89.896783] rtmsg_ifinfo_build_skb+0x68/0x120 [ 89.901364] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 89.906204] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 89.911135] rtnetlink_event+0xc2/0x110 [ 89.915107] notifier_call_chain+0xd6/0x150 [ 89.919427] raw_notifier_call_chain+0x11/0x20 [ 89.924004] call_netdevice_notifiers_info+0x4b/0x60 [ 89.929202] __netdev_upper_dev_link+0x18e/0x1f0 [ 89.933953] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 89.938719] netdev_master_upper_dev_link+0x14/0x20 [ 89.943734] batadv_hardif_enable_interface+0x1f4/0xa10 [ 89.949748] batadv_softif_slave_add+0x7f/0xd0 [ 89.954429] do_set_master+0x163/0x1f0 [ 89.958315] do_setlink+0x9dd/0x2c50 [ 89.962024] ? __kernel_text_address+0xd/0x40 [ 89.966514] ? unwind_get_return_address+0x61/0xa0 [ 89.971441] ? rtnl_register+0x20/0x20 [ 89.975322] ? depot_save_stack+0x122/0x43a [ 89.979643] ? __mmdrop+0x15d/0x1c0 [ 89.983267] ? save_stack+0xa9/0xd0 [ 89.986926] ? save_stack_trace+0x16/0x20 [ 89.991070] ? save_stack+0x43/0xd0 [ 89.994690] ? kasan_slab_free+0x71/0xc0 [ 89.998743] ? kmem_cache_free+0x80/0x2d0 [ 90.002885] ? __mmdrop+0x15d/0x1c0 [ 90.006505] ? finish_task_switch+0x496/0x650 [ 90.010993] ? __schedule+0x788/0x1d20 [ 90.014873] ? schedule+0x7f/0x1b0 [ 90.018404] ? schedule_preempt_disabled+0x13/0x20 [ 90.023313] ? __mutex_lock+0xabc/0x14c0 [ 90.027353] ? mutex_lock_nested+0x16/0x20 [ 90.031585] ? rtnetlink_rcv_msg+0x2c0/0x9e0 [ 90.035972] ? netlink_rcv_skb+0x133/0x370 [ 90.040187] ? rtnetlink_rcv+0x10/0x20 [ 90.044057] ? netlink_unicast+0x40b/0x600 [ 90.048864] ? netlink_sendmsg+0x730/0xbd0 [ 90.053110] ? sock_sendmsg+0xb5/0xf0 [ 90.056976] ? ___sys_sendmsg+0x625/0x920 [ 90.061099] ? __sys_sendmsg+0xc1/0x140 [ 90.065051] ? SyS_sendmsg+0xd/0x20 [ 90.068663] ? do_syscall_64+0x1c7/0x5b0 [ 90.072881] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 90.078284] ? trace_hardirqs_off+0x10/0x10 [ 90.082591] ? debug_check_no_obj_freed+0x2f0/0x930 [ 90.087593] rtnl_newlink+0xe0c/0x1390 [ 90.091459] ? __mmdrop+0x15d/0x1c0 [ 90.095170] ? __mmdrop+0x15d/0x1c0 [ 90.098787] ? rtnl_link_unregister+0x270/0x270 [ 90.103442] ? finish_task_switch+0x496/0x650 [ 90.108024] ? find_held_lock+0x36/0x1d0 [ 90.112072] ? __mutex_lock+0x8b7/0x14c0 [ 90.116127] ? lock_downgrade+0x7f0/0x7f0 [ 90.120271] ? do_raw_spin_unlock+0x16a/0x250 [ 90.124846] rtnetlink_rcv_msg+0x34c/0x9e0 [ 90.129064] ? rtnl_bridge_getlink+0x760/0x760 [ 90.133625] ? find_held_lock+0x36/0x1d0 [ 90.137666] netlink_rcv_skb+0x133/0x370 [ 90.141707] ? rtnl_bridge_getlink+0x760/0x760 [ 90.146267] ? netlink_ack+0xa00/0xa00 [ 90.150134] ? netlink_deliver_tap+0x8e/0x920 [ 90.154713] rtnetlink_rcv+0x10/0x20 [ 90.158405] netlink_unicast+0x40b/0x600 [ 90.162442] ? netlink_attachskb+0x6d0/0x6d0 [ 90.166838] netlink_sendmsg+0x730/0xbd0 [ 90.170882] ? netlink_unicast+0x600/0x600 [ 90.175100] ? selinux_socket_sendmsg+0x31/0x40 [ 90.179755] ? security_socket_sendmsg+0x6a/0xa0 [ 90.184535] ? netlink_unicast+0x600/0x600 [ 90.188752] sock_sendmsg+0xb5/0xf0 [ 90.192468] ___sys_sendmsg+0x625/0x920 [ 90.196432] ? trace_hardirqs_off+0x10/0x10 [ 90.200740] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 90.205485] ? find_held_lock+0x36/0x1d0 [ 90.209533] ? lock_downgrade+0x7f0/0x7f0 [ 90.213668] ? __fget+0x1ca/0x2f0 [ 90.217101] ? __fget_light+0x166/0x200 [ 90.221112] ? __fdget+0xe/0x10 [ 90.224419] ? sockfd_lookup_light+0x1c/0x150 [ 90.228917] __sys_sendmsg+0xc1/0x140 [ 90.232766] ? SyS_shutdown+0x180/0x180 [ 90.236721] ? __sb_end_write+0xa4/0xd0 [ 90.240685] ? mutex_unlock+0xd/0x10 [ 90.244461] ? do_syscall_64+0x4c/0x5b0 [ 90.248421] ? __sys_sendmsg+0x140/0x140 [ 90.252542] SyS_sendmsg+0xd/0x20 [ 90.255974] do_syscall_64+0x1c7/0x5b0 [ 90.259838] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 90.264663] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 90.269970] RIP: 0033:0x45b399 [ 90.273277] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 90.280984] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 90.288251] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 90.295514] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 90.302768] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 90.310021] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 90.327043] batman_adv: batadv0: Adding interface: veth0_to_bond [ 90.333530] batman_adv: batadv0: The MTU of interface veth0_to_bond 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. [ 90.363109] batman_adv: batadv0: Interface activated: veth0_to_bond [ 90.372125] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 90.384736] FAULT_INJECTION: forcing a failure. [ 90.384736] name failslab, interval 1, probability 0, space 0, times 0 [ 90.401963] CPU: 1 PID: 8026 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 90.409807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.419157] Call Trace: [ 90.421755] dump_stack+0xf7/0x13b [ 90.425300] should_fail.cold.3+0x105/0x14b [ 90.429624] should_failslab+0xba/0xf0 [ 90.433509] kmem_cache_alloc_node+0x287/0x790 [ 90.438128] __alloc_skb+0x92/0x500 [ 90.441758] ? skb_trim+0x160/0x160 [ 90.445382] ? if_nlmsg_size+0x2d9/0x6f0 [ 90.449442] rtmsg_ifinfo_build_skb+0x68/0x120 [ 90.454029] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 90.458867] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 90.463842] rtnetlink_event+0xc2/0x110 [ 90.467816] notifier_call_chain+0xd6/0x150 [ 90.472132] raw_notifier_call_chain+0x11/0x20 [ 90.476793] call_netdevice_notifiers_info+0x4b/0x60 [ 90.481877] __netdev_upper_dev_link+0x18e/0x1f0 [ 90.486616] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 90.491350] netdev_master_upper_dev_link+0x14/0x20 [ 90.496362] batadv_hardif_enable_interface+0x1f4/0xa10 [ 90.501715] batadv_softif_slave_add+0x7f/0xd0 [ 90.506286] do_set_master+0x163/0x1f0 [ 90.510153] do_setlink+0x9dd/0x2c50 [ 90.513852] ? __lock_acquire+0x6a4/0x4500 [ 90.518063] ? rtnl_register+0x20/0x20 [ 90.521929] ? trace_hardirqs_on+0x10/0x10 [ 90.526141] ? trace_hardirqs_off+0x10/0x10 [ 90.530537] ? __lock_acquire+0x6a4/0x4500 [ 90.534760] ? trace_hardirqs_off+0x10/0x10 [ 90.539145] ? trace_hardirqs_off+0x10/0x10 [ 90.543457] ? __lock_is_held+0xb5/0x140 [ 90.547497] ? trace_hardirqs_off+0x10/0x10 [ 90.551805] ? trace_hardirqs_off+0x10/0x10 [ 90.556123] rtnl_newlink+0xe0c/0x1390 [ 90.559999] ? rtnl_link_unregister+0x270/0x270 [ 90.564644] ? finish_task_switch+0x178/0x650 [ 90.569132] ? finish_task_switch+0x14d/0x650 [ 90.573604] ? find_held_lock+0x36/0x1d0 [ 90.577644] ? __mutex_lock+0x8b7/0x14c0 [ 90.581681] ? lock_downgrade+0x7f0/0x7f0 [ 90.585824] ? do_raw_spin_unlock+0x16a/0x250 [ 90.590337] rtnetlink_rcv_msg+0x34c/0x9e0 [ 90.594566] ? rtnl_bridge_getlink+0x760/0x760 [ 90.599123] ? find_held_lock+0x36/0x1d0 [ 90.603178] netlink_rcv_skb+0x133/0x370 [ 90.607215] ? rtnl_bridge_getlink+0x760/0x760 [ 90.611771] ? netlink_ack+0xa00/0xa00 [ 90.615651] ? netlink_deliver_tap+0x8e/0x920 [ 90.620122] rtnetlink_rcv+0x10/0x20 [ 90.623810] netlink_unicast+0x40b/0x600 [ 90.627848] ? netlink_attachskb+0x6d0/0x6d0 [ 90.632232] netlink_sendmsg+0x730/0xbd0 [ 90.636274] ? netlink_unicast+0x600/0x600 [ 90.640485] ? selinux_socket_sendmsg+0x31/0x40 [ 90.645129] ? security_socket_sendmsg+0x6a/0xa0 [ 90.649859] ? netlink_unicast+0x600/0x600 [ 90.654069] sock_sendmsg+0xb5/0xf0 [ 90.657672] ___sys_sendmsg+0x625/0x920 [ 90.661621] ? trace_hardirqs_off+0x10/0x10 [ 90.665920] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 90.670652] ? find_held_lock+0x36/0x1d0 [ 90.674689] ? lock_downgrade+0x7f0/0x7f0 [ 90.678842] ? __fget+0x1ca/0x2f0 [ 90.682277] ? __fget_light+0x166/0x200 [ 90.686235] ? __fdget+0xe/0x10 [ 90.689507] ? sockfd_lookup_light+0x1c/0x150 [ 90.693977] __sys_sendmsg+0xc1/0x140 [ 90.697760] ? SyS_shutdown+0x180/0x180 [ 90.701718] ? __sb_end_write+0xa4/0xd0 [ 90.705689] ? mutex_unlock+0xd/0x10 [ 90.709383] ? do_syscall_64+0x4c/0x5b0 [ 90.713336] ? __sys_sendmsg+0x140/0x140 [ 90.717378] SyS_sendmsg+0xd/0x20 [ 90.720807] do_syscall_64+0x1c7/0x5b0 [ 90.724678] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 90.729519] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 90.734683] RIP: 0033:0x45b399 [ 90.737847] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 90.745544] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 90.752788] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 90.760049] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 90.767294] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 90.774556] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 90.786219] batman_adv: batadv0: Adding interface: veth1 [ 90.792365] batman_adv: batadv0: The MTU of interface veth1 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. [ 90.817587] batman_adv: batadv0: Interface activated: veth1 [ 90.825246] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 90.845456] FAULT_INJECTION: forcing a failure. [ 90.845456] name failslab, interval 1, probability 0, space 0, times 0 [ 90.860594] CPU: 0 PID: 8048 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 90.868405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.877753] Call Trace: [ 90.880340] dump_stack+0xf7/0x13b [ 90.883880] should_fail.cold.3+0x105/0x14b [ 90.888199] should_failslab+0xba/0xf0 [ 90.892079] kmem_cache_alloc_node_trace+0x279/0x780 [ 90.897182] __kmalloc_node_track_caller+0x3c/0x70 [ 90.902108] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 90.906860] __alloc_skb+0xc1/0x500 [ 90.910479] ? skb_trim+0x160/0x160 [ 90.914099] ? if_nlmsg_size+0x2d9/0x6f0 [ 90.918157] rtmsg_ifinfo_build_skb+0x68/0x120 [ 90.922740] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 90.927579] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 90.932491] rtnetlink_event+0xc2/0x110 [ 90.936541] notifier_call_chain+0xd6/0x150 [ 90.940855] raw_notifier_call_chain+0x11/0x20 [ 90.945540] call_netdevice_notifiers_info+0x4b/0x60 [ 90.950623] __netdev_upper_dev_link+0x18e/0x1f0 [ 90.955441] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 90.960238] netdev_master_upper_dev_link+0x14/0x20 [ 90.965245] batadv_hardif_enable_interface+0x1f4/0xa10 [ 90.970598] batadv_softif_slave_add+0x7f/0xd0 [ 90.975159] do_set_master+0x163/0x1f0 [ 90.979039] do_setlink+0x9dd/0x2c50 [ 90.982853] ? find_held_lock+0x36/0x1d0 [ 90.986897] ? rtnl_register+0x20/0x20 [ 90.990761] ? load_balance+0xb38/0x2190 [ 90.994814] ? lock_downgrade+0x7f0/0x7f0 [ 90.998958] ? lock_pin_lock+0x340/0x340 [ 91.003010] ? __lock_acquire+0x6a4/0x4500 [ 91.007227] ? trace_hardirqs_off+0x10/0x10 [ 91.011529] ? __lock_is_held+0xb5/0x140 [ 91.015575] ? trace_hardirqs_off+0x10/0x10 [ 91.019888] rtnl_newlink+0xe0c/0x1390 [ 91.023762] ? rtnl_link_unregister+0x270/0x270 [ 91.028408] ? finish_task_switch+0x178/0x650 [ 91.032904] ? finish_task_switch+0x14d/0x650 [ 91.037385] ? find_held_lock+0x36/0x1d0 [ 91.041447] ? __mutex_lock+0x8b7/0x14c0 [ 91.045502] ? lock_downgrade+0x7f0/0x7f0 [ 91.049636] ? do_raw_spin_unlock+0x16a/0x250 [ 91.054130] rtnetlink_rcv_msg+0x34c/0x9e0 [ 91.058346] ? rtnl_bridge_getlink+0x760/0x760 [ 91.062912] ? find_held_lock+0x36/0x1d0 [ 91.066973] netlink_rcv_skb+0x133/0x370 [ 91.071018] ? rtnl_bridge_getlink+0x760/0x760 [ 91.075597] ? netlink_ack+0xa00/0xa00 [ 91.079472] ? netlink_deliver_tap+0x8e/0x920 [ 91.083953] rtnetlink_rcv+0x10/0x20 [ 91.087648] netlink_unicast+0x40b/0x600 [ 91.091694] ? netlink_attachskb+0x6d0/0x6d0 [ 91.105895] netlink_sendmsg+0x730/0xbd0 [ 91.109954] ? netlink_unicast+0x600/0x600 [ 91.114183] ? selinux_socket_sendmsg+0x31/0x40 [ 91.118849] ? security_socket_sendmsg+0x6a/0xa0 [ 91.123591] ? netlink_unicast+0x600/0x600 [ 91.127804] sock_sendmsg+0xb5/0xf0 [ 91.131428] ___sys_sendmsg+0x625/0x920 [ 91.135378] ? trace_hardirqs_off+0x10/0x10 [ 91.139680] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 91.144436] ? find_held_lock+0x36/0x1d0 [ 91.148496] ? lock_downgrade+0x7f0/0x7f0 [ 91.152625] ? __fget+0x1ca/0x2f0 [ 91.156056] ? __fget_light+0x166/0x200 [ 91.160020] ? __fdget+0xe/0x10 [ 91.163281] ? sockfd_lookup_light+0x1c/0x150 [ 91.167848] __sys_sendmsg+0xc1/0x140 [ 91.171652] ? SyS_shutdown+0x180/0x180 [ 91.175607] ? __sb_end_write+0xa4/0xd0 [ 91.179571] ? mutex_unlock+0xd/0x10 [ 91.183297] ? do_syscall_64+0x4c/0x5b0 [ 91.187273] ? __sys_sendmsg+0x140/0x140 [ 91.191310] SyS_sendmsg+0xd/0x20 [ 91.194739] do_syscall_64+0x1c7/0x5b0 [ 91.198605] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 91.203433] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 91.208596] RIP: 0033:0x45b399 [ 91.211776] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 91.219466] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 91.226719] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 91.233980] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 91.241226] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 91.248492] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 91.265329] batman_adv: batadv0: Adding interface: veth0 [ 91.270997] batman_adv: batadv0: The MTU of interface veth0 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. [ 91.297583] batman_adv: batadv0: Interface activated: veth0 [ 91.304516] FAULT_INJECTION: forcing a failure. [ 91.304516] name failslab, interval 1, probability 0, space 0, times 0 [ 91.317997] CPU: 0 PID: 8041 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 91.325887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.335240] Call Trace: [ 91.337827] dump_stack+0xf7/0x13b [ 91.341400] should_fail.cold.3+0x105/0x14b [ 91.345722] should_failslab+0xba/0xf0 [ 91.349602] kmem_cache_alloc_node_trace+0x279/0x780 [ 91.354689] __kmalloc_node_track_caller+0x3c/0x70 [ 91.359597] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 91.364331] __alloc_skb+0xc1/0x500 [ 91.367942] ? skb_trim+0x160/0x160 [ 91.371552] ? if_nlmsg_size+0x2d9/0x6f0 [ 91.375615] rtmsg_ifinfo_build_skb+0x68/0x120 [ 91.380254] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 91.385090] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 91.390008] rtnetlink_event+0xc2/0x110 [ 91.393969] notifier_call_chain+0xd6/0x150 [ 91.398280] raw_notifier_call_chain+0x11/0x20 [ 91.402849] call_netdevice_notifiers_info+0x4b/0x60 [ 91.407946] __netdev_upper_dev_link+0x18e/0x1f0 [ 91.412694] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 91.417447] netdev_master_upper_dev_link+0x14/0x20 [ 91.422511] batadv_hardif_enable_interface+0x1f4/0xa10 [ 91.427867] batadv_softif_slave_add+0x7f/0xd0 [ 91.432435] do_set_master+0x163/0x1f0 [ 91.436301] do_setlink+0x9dd/0x2c50 [ 91.439995] ? rtnl_register+0x20/0x20 [ 91.444685] ? __lock_acquire+0x6a4/0x4500 [ 91.448973] ? trace_hardirqs_off+0x10/0x10 [ 91.453288] rtnl_newlink+0xe0c/0x1390 [ 91.457168] ? rtnl_link_unregister+0x270/0x270 [ 91.461820] ? finish_task_switch+0x178/0x650 [ 91.466288] ? finish_task_switch+0x14d/0x650 [ 91.470764] ? find_held_lock+0x36/0x1d0 [ 91.474860] ? __mutex_lock+0x8b7/0x14c0 [ 91.478905] ? lock_downgrade+0x7f0/0x7f0 [ 91.483036] ? do_raw_spin_unlock+0x16a/0x250 [ 91.487541] rtnetlink_rcv_msg+0x34c/0x9e0 [ 91.491760] ? rtnl_bridge_getlink+0x760/0x760 [ 91.496320] ? find_held_lock+0x36/0x1d0 [ 91.500362] netlink_rcv_skb+0x133/0x370 [ 91.504403] ? rtnl_bridge_getlink+0x760/0x760 [ 91.508970] ? netlink_ack+0xa00/0xa00 [ 91.512871] ? netlink_deliver_tap+0x8e/0x920 [ 91.517350] rtnetlink_rcv+0x10/0x20 [ 91.521062] netlink_unicast+0x40b/0x600 [ 91.525106] ? netlink_attachskb+0x6d0/0x6d0 [ 91.529497] netlink_sendmsg+0x730/0xbd0 [ 91.533559] ? netlink_unicast+0x600/0x600 [ 91.537780] ? selinux_socket_sendmsg+0x31/0x40 [ 91.542436] ? security_socket_sendmsg+0x6a/0xa0 [ 91.547261] ? netlink_unicast+0x600/0x600 [ 91.551496] sock_sendmsg+0xb5/0xf0 [ 91.555101] ___sys_sendmsg+0x625/0x920 [ 91.559060] ? trace_hardirqs_off+0x10/0x10 [ 91.563386] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 91.568138] ? find_held_lock+0x36/0x1d0 [ 91.572246] ? lock_downgrade+0x7f0/0x7f0 [ 91.576387] ? __fget+0x1ca/0x2f0 [ 91.579887] ? __fget_light+0x166/0x200 [ 91.583946] ? __fdget+0xe/0x10 [ 91.587207] ? sockfd_lookup_light+0x1c/0x150 [ 91.591690] __sys_sendmsg+0xc1/0x140 [ 91.595524] ? SyS_shutdown+0x180/0x180 [ 91.599483] ? __sb_end_write+0xa4/0xd0 [ 91.603501] ? mutex_unlock+0xd/0x10 [ 91.607214] ? do_syscall_64+0x4c/0x5b0 [ 91.611173] ? __sys_sendmsg+0x140/0x140 [ 91.615373] SyS_sendmsg+0xd/0x20 [ 91.618811] do_syscall_64+0x1c7/0x5b0 [ 91.622744] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 91.627575] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 91.632749] RIP: 0033:0x45b399 [ 91.635996] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 91.643681] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 91.650951] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 91.658208] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 91.665465] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 91.672713] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 91.689119] batman_adv: batadv0: Adding interface: veth1_to_bond [ 91.695362] batman_adv: batadv0: The MTU of interface veth1_to_bond 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. [ 91.721185] batman_adv: batadv0: Interface activated: veth1_to_bond [ 91.728939] device bridge_slave_0 left promiscuous mode [ 91.734720] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.741203] FAULT_INJECTION: forcing a failure. [ 91.741203] name failslab, interval 1, probability 0, space 0, times 0 [ 91.752422] CPU: 0 PID: 8053 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 91.760233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.769580] Call Trace: [ 91.772163] dump_stack+0xf7/0x13b [ 91.775702] should_fail.cold.3+0x105/0x14b [ 91.780042] should_failslab+0xba/0xf0 [ 91.783926] kmem_cache_alloc_node_trace+0x5a/0x780 [ 91.788945] __kmalloc_node_track_caller+0x3c/0x70 [ 91.793872] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 91.798626] __alloc_skb+0xc1/0x500 [ 91.802245] ? skb_trim+0x160/0x160 [ 91.805861] ? br_get_link_af_size_filtered+0xd2/0x6e0 [ 91.811121] br_ifinfo_notify.part.21+0x89/0x160 [ 91.815854] br_ifinfo_notify+0xe/0x20 [ 91.819722] br_stp_disable_port+0xbb/0x150 [ 91.824047] del_nbp+0x119/0x8b0 [ 91.827393] br_del_if+0xc7/0x470 [ 91.830822] br_del_slave+0x10/0x20 [ 91.834422] do_set_master+0xb6/0x1f0 [ 91.838204] do_setlink+0x9dd/0x2c50 [ 91.841919] ? rtnl_register+0x20/0x20 [ 91.845796] ? trace_hardirqs_off+0x10/0x10 [ 91.850108] ? __lock_acquire+0x6a4/0x4500 [ 91.854330] ? trace_hardirqs_off+0x10/0x10 [ 91.858641] ? trace_hardirqs_on+0x10/0x10 [ 91.862860] ? trace_hardirqs_off+0x10/0x10 [ 91.867166] ? __lock_acquire+0x6a4/0x4500 [ 91.871380] ? trace_hardirqs_off+0x10/0x10 [ 91.875682] ? __lock_is_held+0xb5/0x140 [ 91.879734] rtnl_newlink+0xe0c/0x1390 [ 91.883631] ? trace_hardirqs_off+0x10/0x10 [ 91.887951] ? memset+0x31/0x40 [ 91.891219] ? rtnl_newlink+0x6d0/0x1390 [ 91.895269] ? rtnl_link_unregister+0x270/0x270 [ 91.899921] ? finish_task_switch+0x178/0x650 [ 91.904397] ? finish_task_switch+0x14d/0x650 [ 91.908874] ? find_held_lock+0x36/0x1d0 [ 91.912918] ? __mutex_lock+0x8b7/0x14c0 [ 91.916963] ? lock_downgrade+0x7f0/0x7f0 [ 91.921182] ? do_raw_spin_unlock+0x16a/0x250 [ 91.925684] rtnetlink_rcv_msg+0x34c/0x9e0 [ 91.929920] ? rtnl_bridge_getlink+0x760/0x760 [ 91.934483] ? find_held_lock+0x36/0x1d0 [ 91.938538] netlink_rcv_skb+0x133/0x370 [ 91.942593] ? rtnl_bridge_getlink+0x760/0x760 [ 91.947784] ? netlink_ack+0xa00/0xa00 [ 91.951653] ? netlink_deliver_tap+0x8e/0x920 [ 91.956151] rtnetlink_rcv+0x10/0x20 [ 91.959854] netlink_unicast+0x40b/0x600 [ 91.963906] ? netlink_attachskb+0x6d0/0x6d0 [ 91.968307] netlink_sendmsg+0x730/0xbd0 [ 91.972470] ? netlink_unicast+0x600/0x600 [ 91.976684] ? selinux_socket_sendmsg+0x31/0x40 [ 91.981334] ? security_socket_sendmsg+0x6a/0xa0 [ 91.986066] ? netlink_unicast+0x600/0x600 [ 91.990412] sock_sendmsg+0xb5/0xf0 [ 91.994031] ___sys_sendmsg+0x625/0x920 [ 91.997999] ? trace_hardirqs_off+0x10/0x10 [ 92.002327] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 92.007063] ? find_held_lock+0x36/0x1d0 [ 92.011106] ? lock_downgrade+0x7f0/0x7f0 [ 92.015247] ? __fget+0x1ca/0x2f0 [ 92.018694] ? __fget_light+0x166/0x200 [ 92.022738] ? __fdget+0xe/0x10 [ 92.026012] ? sockfd_lookup_light+0x1c/0x150 [ 92.030501] __sys_sendmsg+0xc1/0x140 [ 92.034275] ? SyS_shutdown+0x180/0x180 [ 92.038234] ? __sb_end_write+0xa4/0xd0 [ 92.042194] ? mutex_unlock+0xd/0x10 [ 92.045886] ? do_syscall_64+0x4c/0x5b0 [ 92.049857] ? __sys_sendmsg+0x140/0x140 [ 92.053900] SyS_sendmsg+0xd/0x20 [ 92.057424] do_syscall_64+0x1c7/0x5b0 [ 92.061323] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.066164] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 92.071326] RIP: 0033:0x45b399 [ 92.074495] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 92.082204] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 92.089466] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 92.096719] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 92.103977] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 92.111255] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 92.150211] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 92.156528] batman_adv: batadv0: The MTU of interface bridge_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. [ 92.183768] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 92.191361] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 92.203992] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 92.213815] FAULT_INJECTION: forcing a failure. [ 92.213815] name failslab, interval 1, probability 0, space 0, times 0 [ 92.237693] CPU: 0 PID: 8064 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 92.245519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.254871] Call Trace: [ 92.257454] dump_stack+0xf7/0x13b [ 92.260992] should_fail.cold.3+0x105/0x14b [ 92.265315] should_failslab+0xba/0xf0 [ 92.269214] kmem_cache_alloc_node_trace+0x279/0x780 [ 92.274323] __kmalloc_node_track_caller+0x3c/0x70 [ 92.279255] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 92.284002] __alloc_skb+0xc1/0x500 [ 92.287621] ? skb_trim+0x160/0x160 [ 92.291253] ? if_nlmsg_size+0x2d9/0x6f0 [ 92.295313] rtmsg_ifinfo_build_skb+0x68/0x120 [ 92.299878] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 92.304694] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 92.309610] rtnetlink_event+0xc2/0x110 [ 92.313682] notifier_call_chain+0xd6/0x150 [ 92.317989] raw_notifier_call_chain+0x11/0x20 [ 92.322557] call_netdevice_notifiers_info+0x4b/0x60 [ 92.327653] __netdev_upper_dev_link+0x18e/0x1f0 [ 92.332402] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 92.337163] netdev_master_upper_dev_link+0x14/0x20 [ 92.342161] batadv_hardif_enable_interface+0x1f4/0xa10 [ 92.347532] batadv_softif_slave_add+0x7f/0xd0 [ 92.352102] do_set_master+0x163/0x1f0 [ 92.355983] do_setlink+0x9dd/0x2c50 [ 92.359743] ? __lock_acquire+0x6a4/0x4500 [ 92.363962] ? rtnl_register+0x20/0x20 [ 92.367952] ? trace_hardirqs_on+0x10/0x10 [ 92.372179] ? trace_hardirqs_off+0x10/0x10 [ 92.376504] ? __lock_acquire+0x6a4/0x4500 [ 92.380750] ? trace_hardirqs_off+0x10/0x10 [ 92.385050] ? __lock_is_held+0xb5/0x140 [ 92.389095] ? trace_hardirqs_off+0x10/0x10 [ 92.393404] ? trace_hardirqs_off+0x10/0x10 [ 92.397719] ? trace_hardirqs_off+0x10/0x10 [ 92.402038] rtnl_newlink+0xe0c/0x1390 [ 92.405910] ? rtnl_link_unregister+0x270/0x270 [ 92.410759] ? finish_task_switch+0x178/0x650 [ 92.415257] ? finish_task_switch+0x14d/0x650 [ 92.419748] ? find_held_lock+0x36/0x1d0 [ 92.423800] ? __mutex_lock+0x8b7/0x14c0 [ 92.427841] ? lock_downgrade+0x7f0/0x7f0 [ 92.431987] ? do_raw_spin_unlock+0x16a/0x250 [ 92.436477] rtnetlink_rcv_msg+0x34c/0x9e0 [ 92.440694] ? rtnl_bridge_getlink+0x760/0x760 [ 92.445258] ? find_held_lock+0x36/0x1d0 [ 92.449307] netlink_rcv_skb+0x133/0x370 [ 92.453371] ? rtnl_bridge_getlink+0x760/0x760 [ 92.458459] ? netlink_ack+0xa00/0xa00 [ 92.462334] ? netlink_deliver_tap+0x8e/0x920 [ 92.466831] rtnetlink_rcv+0x10/0x20 [ 92.470529] netlink_unicast+0x40b/0x600 [ 92.474593] ? netlink_attachskb+0x6d0/0x6d0 [ 92.479010] netlink_sendmsg+0x730/0xbd0 [ 92.483057] ? netlink_unicast+0x600/0x600 [ 92.487289] ? selinux_socket_sendmsg+0x31/0x40 [ 92.491932] ? security_socket_sendmsg+0x6a/0xa0 [ 92.496662] ? netlink_unicast+0x600/0x600 [ 92.500893] sock_sendmsg+0xb5/0xf0 [ 92.504499] ___sys_sendmsg+0x625/0x920 [ 92.508453] ? trace_hardirqs_off+0x10/0x10 [ 92.512751] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 92.517492] ? find_held_lock+0x36/0x1d0 [ 92.521559] ? lock_downgrade+0x7f0/0x7f0 [ 92.525686] ? __fget+0x1ca/0x2f0 [ 92.529120] ? __fget_light+0x166/0x200 [ 92.533071] ? __fdget+0xe/0x10 [ 92.536343] ? sockfd_lookup_light+0x1c/0x150 [ 92.540843] __sys_sendmsg+0xc1/0x140 [ 92.544641] ? SyS_shutdown+0x180/0x180 [ 92.548603] ? __sb_end_write+0xa4/0xd0 [ 92.552675] ? mutex_unlock+0xd/0x10 [ 92.556413] ? do_syscall_64+0x4c/0x5b0 [ 92.560376] ? __sys_sendmsg+0x140/0x140 [ 92.564417] SyS_sendmsg+0xd/0x20 [ 92.567897] do_syscall_64+0x1c7/0x5b0 [ 92.571849] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 92.576691] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 92.581878] RIP: 0033:0x45b399 [ 92.585044] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 92.592734] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 92.599990] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 92.607466] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 92.614781] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 92.622032] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 92.638236] batman_adv: batadv0: Adding interface: veth1 [ 92.643913] batman_adv: batadv0: The MTU of interface veth1 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. [ 92.668920] batman_adv: batadv0: Interface activated: veth1 [ 92.676060] FAULT_INJECTION: forcing a failure. [ 92.676060] name failslab, interval 1, probability 0, space 0, times 0 [ 92.702772] CPU: 0 PID: 8068 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 92.710590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.719943] Call Trace: [ 92.722531] dump_stack+0xf7/0x13b [ 92.726072] should_fail.cold.3+0x105/0x14b [ 92.730481] should_failslab+0xba/0xf0 [ 92.734368] kmem_cache_alloc_node_trace+0x279/0x780 [ 92.739589] __kmalloc_node_track_caller+0x3c/0x70 [ 92.744849] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 92.749593] __alloc_skb+0xc1/0x500 [ 92.754940] ? skb_trim+0x160/0x160 [ 92.758544] ? if_nlmsg_size+0x2d9/0x6f0 [ 92.762599] rtmsg_ifinfo_build_skb+0x68/0x120 [ 92.767194] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 92.772024] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 92.776930] rtnetlink_event+0xc2/0x110 [ 92.780882] notifier_call_chain+0xd6/0x150 [ 92.785187] raw_notifier_call_chain+0x11/0x20 [ 92.789752] call_netdevice_notifiers_info+0x4b/0x60 [ 92.794838] __netdev_upper_dev_link+0x18e/0x1f0 [ 92.799572] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 92.804306] netdev_master_upper_dev_link+0x14/0x20 [ 92.809381] batadv_hardif_enable_interface+0x1f4/0xa10 [ 92.814736] batadv_softif_slave_add+0x7f/0xd0 [ 92.819295] do_set_master+0x163/0x1f0 [ 92.823178] do_setlink+0x9dd/0x2c50 [ 92.826885] ? __lock_acquire+0x6a4/0x4500 [ 92.831100] ? rtnl_register+0x20/0x20 [ 92.834968] ? trace_hardirqs_on+0x10/0x10 [ 92.839178] ? trace_hardirqs_off+0x10/0x10 [ 92.843477] ? __lock_acquire+0x6a4/0x4500 [ 92.847696] ? trace_hardirqs_off+0x10/0x10 [ 92.852000] ? trace_hardirqs_off+0x10/0x10 [ 92.856296] ? __lock_is_held+0xb5/0x140 [ 92.860337] ? trace_hardirqs_off+0x10/0x10 [ 92.864642] rtnl_newlink+0xe0c/0x1390 [ 92.868520] ? rtnl_link_unregister+0x270/0x270 [ 92.873263] ? finish_task_switch+0x178/0x650 [ 92.877733] ? finish_task_switch+0x14d/0x650 [ 92.882220] ? find_held_lock+0x36/0x1d0 [ 92.886262] ? __mutex_lock+0x8b7/0x14c0 [ 92.890305] ? lock_downgrade+0x7f0/0x7f0 [ 92.894463] ? do_raw_spin_unlock+0x16a/0x250 [ 92.898952] rtnetlink_rcv_msg+0x34c/0x9e0 [ 92.903191] ? rtnl_bridge_getlink+0x760/0x760 [ 92.907753] ? find_held_lock+0x36/0x1d0 [ 92.911846] netlink_rcv_skb+0x133/0x370 [ 92.915884] ? rtnl_bridge_getlink+0x760/0x760 [ 92.920442] ? netlink_ack+0xa00/0xa00 [ 92.924317] ? netlink_deliver_tap+0x8e/0x920 [ 92.928805] rtnetlink_rcv+0x10/0x20 [ 92.932501] netlink_unicast+0x40b/0x600 [ 92.936546] ? netlink_attachskb+0x6d0/0x6d0 [ 92.940935] netlink_sendmsg+0x730/0xbd0 [ 92.944974] ? netlink_unicast+0x600/0x600 [ 92.949193] ? selinux_socket_sendmsg+0x31/0x40 [ 92.953864] ? security_socket_sendmsg+0x6a/0xa0 [ 92.958631] ? netlink_unicast+0x600/0x600 [ 92.962863] sock_sendmsg+0xb5/0xf0 [ 92.966469] ___sys_sendmsg+0x625/0x920 [ 92.970428] ? trace_hardirqs_off+0x10/0x10 [ 92.974733] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 92.979512] ? find_held_lock+0x36/0x1d0 [ 92.983553] ? lock_downgrade+0x7f0/0x7f0 [ 92.987694] ? __fget+0x1ca/0x2f0 [ 92.991159] ? __fget_light+0x166/0x200 [ 92.995109] ? __fdget+0xe/0x10 [ 92.998366] ? sockfd_lookup_light+0x1c/0x150 [ 93.002855] __sys_sendmsg+0xc1/0x140 [ 93.006632] ? SyS_shutdown+0x180/0x180 [ 93.010594] ? __sb_end_write+0xa4/0xd0 [ 93.014562] ? mutex_unlock+0xd/0x10 [ 93.018254] ? do_syscall_64+0x4c/0x5b0 [ 93.022204] ? __sys_sendmsg+0x140/0x140 [ 93.026238] SyS_sendmsg+0xd/0x20 [ 93.029676] do_syscall_64+0x1c7/0x5b0 [ 93.033550] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.038376] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 93.043570] RIP: 0033:0x45b399 [ 93.046752] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.054440] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 93.061689] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 93.068978] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 93.076237] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 93.083492] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 93.094907] batman_adv: batadv0: Adding interface: veth0_to_bridge 2020/06/04 21:06:11 executed programs: 79 [ 93.101457] batman_adv: batadv0: The MTU of interface veth0_to_bridge 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. [ 93.127306] batman_adv: batadv0: Interface activated: veth0_to_bridge [ 93.134733] FAULT_INJECTION: forcing a failure. [ 93.134733] name failslab, interval 1, probability 0, space 0, times 0 [ 93.155284] CPU: 0 PID: 8073 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 93.163108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.172464] Call Trace: [ 93.175056] dump_stack+0xf7/0x13b [ 93.178606] should_fail.cold.3+0x105/0x14b [ 93.182928] should_failslab+0xba/0xf0 [ 93.186797] kmem_cache_alloc_node_trace+0x279/0x780 [ 93.191891] __kmalloc_node_track_caller+0x3c/0x70 [ 93.196800] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 93.201665] __alloc_skb+0xc1/0x500 [ 93.205328] ? skb_trim+0x160/0x160 [ 93.208939] ? if_nlmsg_size+0x2d9/0x6f0 [ 93.213060] rtmsg_ifinfo_build_skb+0x68/0x120 [ 93.217625] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 93.222497] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 93.227411] rtnetlink_event+0xc2/0x110 [ 93.231370] notifier_call_chain+0xd6/0x150 [ 93.235667] raw_notifier_call_chain+0x11/0x20 [ 93.240225] call_netdevice_notifiers_info+0x4b/0x60 [ 93.245315] __netdev_upper_dev_link+0x18e/0x1f0 [ 93.250063] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 93.254807] netdev_master_upper_dev_link+0x14/0x20 [ 93.259799] batadv_hardif_enable_interface+0x1f4/0xa10 [ 93.265137] batadv_softif_slave_add+0x7f/0xd0 [ 93.269702] do_set_master+0x163/0x1f0 [ 93.273577] do_setlink+0x9dd/0x2c50 [ 93.277266] ? find_held_lock+0x36/0x1d0 [ 93.281314] ? rtnl_register+0x20/0x20 [ 93.285194] ? load_balance+0xb38/0x2190 [ 93.289235] ? lock_downgrade+0x7f0/0x7f0 [ 93.293382] ? lock_pin_lock+0x340/0x340 [ 93.297422] ? __lock_acquire+0x6a4/0x4500 [ 93.301629] ? trace_hardirqs_off+0x10/0x10 [ 93.305930] ? __lock_is_held+0xb5/0x140 [ 93.309973] ? trace_hardirqs_off+0x10/0x10 [ 93.314280] rtnl_newlink+0xe0c/0x1390 [ 93.318165] ? rtnl_link_unregister+0x270/0x270 [ 93.322807] ? finish_task_switch+0x178/0x650 [ 93.327281] ? finish_task_switch+0x14d/0x650 [ 93.331760] ? find_held_lock+0x36/0x1d0 [ 93.335815] ? __mutex_lock+0x8b7/0x14c0 [ 93.339850] ? lock_downgrade+0x7f0/0x7f0 [ 93.343975] ? do_raw_spin_unlock+0x16a/0x250 [ 93.348479] rtnetlink_rcv_msg+0x34c/0x9e0 [ 93.352697] ? rtnl_bridge_getlink+0x760/0x760 [ 93.357260] ? find_held_lock+0x36/0x1d0 [ 93.361310] netlink_rcv_skb+0x133/0x370 [ 93.365365] ? rtnl_bridge_getlink+0x760/0x760 [ 93.369930] ? netlink_ack+0xa00/0xa00 [ 93.373809] ? netlink_deliver_tap+0x8e/0x920 [ 93.378284] rtnetlink_rcv+0x10/0x20 [ 93.382011] netlink_unicast+0x40b/0x600 [ 93.386087] ? netlink_attachskb+0x6d0/0x6d0 [ 93.390491] netlink_sendmsg+0x730/0xbd0 [ 93.394541] ? netlink_unicast+0x600/0x600 [ 93.398779] ? selinux_socket_sendmsg+0x31/0x40 [ 93.403427] ? security_socket_sendmsg+0x6a/0xa0 [ 93.408178] ? netlink_unicast+0x600/0x600 [ 93.412416] sock_sendmsg+0xb5/0xf0 [ 93.416042] ___sys_sendmsg+0x625/0x920 [ 93.420010] ? trace_hardirqs_off+0x10/0x10 [ 93.424506] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 93.429253] ? find_held_lock+0x36/0x1d0 [ 93.433296] ? lock_downgrade+0x7f0/0x7f0 [ 93.437432] ? __fget+0x1ca/0x2f0 [ 93.440877] ? __fget_light+0x166/0x200 [ 93.444837] ? __fdget+0xe/0x10 [ 93.448111] ? sockfd_lookup_light+0x1c/0x150 [ 93.452579] __sys_sendmsg+0xc1/0x140 [ 93.456354] ? SyS_shutdown+0x180/0x180 [ 93.460325] ? __sb_end_write+0xa4/0xd0 [ 93.464292] ? mutex_unlock+0xd/0x10 [ 93.467992] ? do_syscall_64+0x4c/0x5b0 [ 93.471948] ? __sys_sendmsg+0x140/0x140 [ 93.475982] SyS_sendmsg+0xd/0x20 [ 93.479414] do_syscall_64+0x1c7/0x5b0 [ 93.483282] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.488115] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 93.493290] RIP: 0033:0x45b399 [ 93.496479] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.504166] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 93.511483] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 93.518741] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 93.526007] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 93.533261] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 93.545330] batman_adv: batadv0: Adding interface: veth0_to_team [ 93.551768] batman_adv: batadv0: The MTU of interface veth0_to_team 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. [ 93.577465] batman_adv: batadv0: Interface activated: veth0_to_team [ 93.584594] device bridge_slave_1 left promiscuous mode [ 93.598528] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.604987] FAULT_INJECTION: forcing a failure. [ 93.604987] name failslab, interval 1, probability 0, space 0, times 0 [ 93.616372] CPU: 1 PID: 8079 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 93.624169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.633726] Call Trace: [ 93.636392] dump_stack+0xf7/0x13b [ 93.639979] should_fail.cold.3+0x105/0x14b [ 93.644317] should_failslab+0xba/0xf0 [ 93.648181] kmem_cache_alloc_node+0x56/0x790 [ 93.652655] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 93.657747] __alloc_skb+0x92/0x500 [ 93.661356] ? skb_trim+0x160/0x160 [ 93.665028] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 93.670194] ? __lock_is_held+0xb5/0x140 [ 93.674233] fdb_notify+0x88/0x130 [ 93.677761] fdb_delete+0x129/0x3a0 [ 93.681369] br_fdb_delete_by_port+0x163/0x1d0 [ 93.685927] br_stp_disable_port+0xeb/0x150 [ 93.690227] del_nbp+0x119/0x8b0 [ 93.693581] br_del_if+0xc7/0x470 [ 93.697021] br_del_slave+0x10/0x20 [ 93.700622] do_set_master+0xb6/0x1f0 [ 93.704397] do_setlink+0x9dd/0x2c50 [ 93.708097] ? rtnl_register+0x20/0x20 [ 93.711964] ? trace_hardirqs_off+0x10/0x10 [ 93.716286] ? __lock_acquire+0x6a4/0x4500 [ 93.720495] ? trace_hardirqs_off+0x10/0x10 [ 93.724807] ? trace_hardirqs_on+0x10/0x10 [ 93.729015] ? trace_hardirqs_off+0x10/0x10 [ 93.733397] ? __lock_acquire+0x6a4/0x4500 [ 93.737611] ? trace_hardirqs_off+0x10/0x10 [ 93.741914] ? __lock_is_held+0xb5/0x140 [ 93.745958] rtnl_newlink+0xe0c/0x1390 [ 93.749833] ? trace_hardirqs_off+0x10/0x10 [ 93.754159] ? memset+0x31/0x40 [ 93.757417] ? rtnl_newlink+0x6d0/0x1390 [ 93.761481] ? rtnl_link_unregister+0x270/0x270 [ 93.766125] ? finish_task_switch+0x178/0x650 [ 93.770597] ? finish_task_switch+0x14d/0x650 [ 93.775084] ? find_held_lock+0x36/0x1d0 [ 93.779125] ? __mutex_lock+0x8b7/0x14c0 [ 93.783184] ? lock_downgrade+0x7f0/0x7f0 [ 93.787328] ? do_raw_spin_unlock+0x16a/0x250 [ 93.791818] rtnetlink_rcv_msg+0x34c/0x9e0 [ 93.796049] ? rtnl_bridge_getlink+0x760/0x760 [ 93.800628] ? find_held_lock+0x36/0x1d0 [ 93.804672] netlink_rcv_skb+0x133/0x370 [ 93.808742] ? rtnl_bridge_getlink+0x760/0x760 [ 93.813315] ? netlink_ack+0xa00/0xa00 [ 93.817181] ? netlink_deliver_tap+0x8e/0x920 [ 93.821669] rtnetlink_rcv+0x10/0x20 [ 93.825366] netlink_unicast+0x40b/0x600 [ 93.829426] ? netlink_attachskb+0x6d0/0x6d0 [ 93.833827] netlink_sendmsg+0x730/0xbd0 [ 93.837940] ? netlink_unicast+0x600/0x600 [ 93.842256] ? selinux_socket_sendmsg+0x31/0x40 [ 93.846909] ? security_socket_sendmsg+0x6a/0xa0 [ 93.851642] ? netlink_unicast+0x600/0x600 [ 93.855855] sock_sendmsg+0xb5/0xf0 [ 93.859460] ___sys_sendmsg+0x625/0x920 [ 93.863416] ? trace_hardirqs_off+0x10/0x10 [ 93.867719] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 93.872457] ? find_held_lock+0x36/0x1d0 [ 93.876496] ? lock_downgrade+0x7f0/0x7f0 [ 93.880638] ? __fget+0x1ca/0x2f0 [ 93.884068] ? __fget_light+0x166/0x200 [ 93.888019] ? __fdget+0xe/0x10 [ 93.891300] ? sockfd_lookup_light+0x1c/0x150 [ 93.895931] __sys_sendmsg+0xc1/0x140 [ 93.899710] ? SyS_shutdown+0x180/0x180 [ 93.903665] ? __sb_end_write+0xa4/0xd0 [ 93.907630] ? mutex_unlock+0xd/0x10 [ 93.911333] ? do_syscall_64+0x4c/0x5b0 [ 93.915302] ? __sys_sendmsg+0x140/0x140 [ 93.920400] SyS_sendmsg+0xd/0x20 [ 93.923923] do_syscall_64+0x1c7/0x5b0 [ 93.927786] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 93.932635] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 93.937813] RIP: 0033:0x45b399 [ 93.940980] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.948669] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 93.955918] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 93.963163] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 93.970415] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 93.977668] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 94.011241] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 94.017577] batman_adv: batadv0: The MTU of interface bridge_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. [ 94.042838] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 94.050253] FAULT_INJECTION: forcing a failure. [ 94.050253] name failslab, interval 1, probability 0, space 0, times 0 [ 94.067348] CPU: 0 PID: 8080 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 94.075154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.084508] Call Trace: [ 94.087075] dump_stack+0xf7/0x13b [ 94.090698] should_fail.cold.3+0x105/0x14b [ 94.094998] should_failslab+0xba/0xf0 [ 94.098862] kmem_cache_alloc_node_trace+0x279/0x780 [ 94.103943] __kmalloc_node_track_caller+0x3c/0x70 [ 94.108847] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 94.113594] __alloc_skb+0xc1/0x500 [ 94.117198] ? skb_trim+0x160/0x160 [ 94.120802] ? if_nlmsg_size+0x2d9/0x6f0 [ 94.124837] rtmsg_ifinfo_build_skb+0x68/0x120 [ 94.129408] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 94.134229] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 94.139148] rtnetlink_event+0xc2/0x110 [ 94.143098] notifier_call_chain+0xd6/0x150 [ 94.147397] raw_notifier_call_chain+0x11/0x20 [ 94.151953] call_netdevice_notifiers_info+0x4b/0x60 [ 94.157055] __netdev_upper_dev_link+0x18e/0x1f0 [ 94.161803] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 94.166548] netdev_master_upper_dev_link+0x14/0x20 [ 94.171539] batadv_hardif_enable_interface+0x1f4/0xa10 [ 94.176880] batadv_softif_slave_add+0x7f/0xd0 [ 94.181437] do_set_master+0x163/0x1f0 [ 94.185298] do_setlink+0x9dd/0x2c50 [ 94.188985] ? __lock_acquire+0x6a4/0x4500 [ 94.193193] ? rtnl_register+0x20/0x20 [ 94.197059] ? trace_hardirqs_on+0x10/0x10 [ 94.201269] ? trace_hardirqs_off+0x10/0x10 [ 94.205565] ? __lock_acquire+0x6a4/0x4500 [ 94.209775] ? trace_hardirqs_off+0x10/0x10 [ 94.214093] ? __lock_is_held+0xb5/0x140 [ 94.218165] ? trace_hardirqs_off+0x10/0x10 [ 94.222464] ? trace_hardirqs_off+0x10/0x10 [ 94.226785] rtnl_newlink+0xe0c/0x1390 [ 94.230677] ? rtnl_link_unregister+0x270/0x270 [ 94.235323] ? finish_task_switch+0x178/0x650 [ 94.239793] ? finish_task_switch+0x14d/0x650 [ 94.244525] ? find_held_lock+0x36/0x1d0 [ 94.248564] ? __mutex_lock+0x8b7/0x14c0 [ 94.252599] ? lock_downgrade+0x7f0/0x7f0 [ 94.256728] ? do_raw_spin_unlock+0x16a/0x250 [ 94.261213] rtnetlink_rcv_msg+0x34c/0x9e0 [ 94.265438] ? rtnl_bridge_getlink+0x760/0x760 [ 94.269996] ? find_held_lock+0x36/0x1d0 [ 94.274044] netlink_rcv_skb+0x133/0x370 [ 94.278088] ? rtnl_bridge_getlink+0x760/0x760 [ 94.282660] ? netlink_ack+0xa00/0xa00 [ 94.286610] ? netlink_deliver_tap+0x8e/0x920 [ 94.291175] rtnetlink_rcv+0x10/0x20 [ 94.294864] netlink_unicast+0x40b/0x600 [ 94.298918] ? netlink_attachskb+0x6d0/0x6d0 [ 94.303306] netlink_sendmsg+0x730/0xbd0 [ 94.307341] ? netlink_unicast+0x600/0x600 [ 94.311564] ? selinux_socket_sendmsg+0x31/0x40 [ 94.316354] ? security_socket_sendmsg+0x6a/0xa0 [ 94.321176] ? netlink_unicast+0x600/0x600 [ 94.325389] sock_sendmsg+0xb5/0xf0 [ 94.328994] ___sys_sendmsg+0x625/0x920 [ 94.332947] ? trace_hardirqs_off+0x10/0x10 [ 94.337245] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 94.341999] ? find_held_lock+0x36/0x1d0 [ 94.346037] ? lock_downgrade+0x7f0/0x7f0 [ 94.350162] ? __fget+0x1ca/0x2f0 [ 94.353593] ? __fget_light+0x166/0x200 [ 94.357571] ? __fdget+0xe/0x10 [ 94.360836] ? sockfd_lookup_light+0x1c/0x150 [ 94.365311] __sys_sendmsg+0xc1/0x140 [ 94.369089] ? SyS_shutdown+0x180/0x180 [ 94.373040] ? __sb_end_write+0xa4/0xd0 [ 94.376992] ? mutex_unlock+0xd/0x10 [ 94.380686] ? do_syscall_64+0x4c/0x5b0 [ 94.384641] ? __sys_sendmsg+0x140/0x140 [ 94.388683] SyS_sendmsg+0xd/0x20 [ 94.392119] do_syscall_64+0x1c7/0x5b0 [ 94.396002] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 94.400838] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 94.406004] RIP: 0033:0x45b399 [ 94.409168] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 94.416848] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 94.424093] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 94.431356] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 94.438599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 94.445946] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 94.456539] batman_adv: batadv0: Adding interface: veth0_to_bridge [ 94.463051] batman_adv: batadv0: The MTU of interface veth0_to_bridge 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. [ 94.488791] batman_adv: batadv0: Interface activated: veth0_to_bridge [ 94.496144] FAULT_INJECTION: forcing a failure. [ 94.496144] name failslab, interval 1, probability 0, space 0, times 0 [ 94.514400] CPU: 0 PID: 8088 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 94.522216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.531677] Call Trace: [ 94.534262] dump_stack+0xf7/0x13b [ 94.537795] should_fail.cold.3+0x105/0x14b [ 94.542196] should_failslab+0xba/0xf0 [ 94.546058] kmem_cache_alloc_node_trace+0x279/0x780 [ 94.551173] __kmalloc_node_track_caller+0x3c/0x70 [ 94.556298] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 94.561027] __alloc_skb+0xc1/0x500 [ 94.564632] ? skb_trim+0x160/0x160 [ 94.568235] ? if_nlmsg_size+0x2d9/0x6f0 [ 94.572270] rtmsg_ifinfo_build_skb+0x68/0x120 [ 94.576876] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 94.581737] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 94.586639] rtnetlink_event+0xc2/0x110 [ 94.590590] notifier_call_chain+0xd6/0x150 [ 94.594899] raw_notifier_call_chain+0x11/0x20 [ 94.599459] call_netdevice_notifiers_info+0x4b/0x60 [ 94.604559] __netdev_upper_dev_link+0x18e/0x1f0 [ 94.609306] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 94.614149] netdev_master_upper_dev_link+0x14/0x20 [ 94.619142] batadv_hardif_enable_interface+0x1f4/0xa10 [ 94.624481] batadv_softif_slave_add+0x7f/0xd0 [ 94.629039] do_set_master+0x163/0x1f0 [ 94.632942] do_setlink+0x9dd/0x2c50 [ 94.636729] ? __lock_acquire+0x6a4/0x4500 [ 94.640994] ? rtnl_register+0x20/0x20 [ 94.644856] ? trace_hardirqs_on+0x10/0x10 [ 94.649062] ? trace_hardirqs_off+0x10/0x10 [ 94.653364] ? __lock_acquire+0x6a4/0x4500 [ 94.657572] ? trace_hardirqs_off+0x10/0x10 [ 94.661865] ? __lock_is_held+0xb5/0x140 [ 94.665908] ? trace_hardirqs_off+0x10/0x10 [ 94.670206] ? trace_hardirqs_off+0x10/0x10 [ 94.674506] rtnl_newlink+0xe0c/0x1390 [ 94.678395] ? rtnl_link_unregister+0x270/0x270 [ 94.683133] ? finish_task_switch+0x178/0x650 [ 94.687607] ? finish_task_switch+0x14d/0x650 [ 94.692081] ? find_held_lock+0x36/0x1d0 [ 94.696115] ? __mutex_lock+0x8b7/0x14c0 [ 94.700160] ? lock_downgrade+0x7f0/0x7f0 [ 94.704284] ? do_raw_spin_unlock+0x16a/0x250 [ 94.708779] rtnetlink_rcv_msg+0x34c/0x9e0 [ 94.712992] ? rtnl_bridge_getlink+0x760/0x760 [ 94.717553] ? find_held_lock+0x36/0x1d0 [ 94.721595] netlink_rcv_skb+0x133/0x370 [ 94.725633] ? rtnl_bridge_getlink+0x760/0x760 [ 94.730204] ? netlink_ack+0xa00/0xa00 [ 94.734081] ? netlink_deliver_tap+0x8e/0x920 [ 94.738550] rtnetlink_rcv+0x10/0x20 [ 94.742235] netlink_unicast+0x40b/0x600 [ 94.746268] ? netlink_attachskb+0x6d0/0x6d0 [ 94.750652] netlink_sendmsg+0x730/0xbd0 [ 94.754700] ? netlink_unicast+0x600/0x600 [ 94.758918] ? selinux_socket_sendmsg+0x31/0x40 [ 94.763557] ? security_socket_sendmsg+0x6a/0xa0 [ 94.768298] ? netlink_unicast+0x600/0x600 [ 94.772515] sock_sendmsg+0xb5/0xf0 [ 94.776128] ___sys_sendmsg+0x625/0x920 [ 94.780249] ? trace_hardirqs_off+0x10/0x10 [ 94.784540] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 94.789268] ? find_held_lock+0x36/0x1d0 [ 94.793303] ? lock_downgrade+0x7f0/0x7f0 [ 94.797426] ? __fget+0x1ca/0x2f0 [ 94.800860] ? __fget_light+0x166/0x200 [ 94.804806] ? __fdget+0xe/0x10 [ 94.808057] ? sockfd_lookup_light+0x1c/0x150 [ 94.812523] __sys_sendmsg+0xc1/0x140 [ 94.816293] ? SyS_shutdown+0x180/0x180 [ 94.820244] ? __sb_end_write+0xa4/0xd0 [ 94.824212] ? mutex_unlock+0xd/0x10 [ 94.827906] ? do_syscall_64+0x4c/0x5b0 [ 94.831850] ? __sys_sendmsg+0x140/0x140 [ 94.835892] SyS_sendmsg+0xd/0x20 [ 94.839318] do_syscall_64+0x1c7/0x5b0 [ 94.843176] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 94.848007] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 94.853167] RIP: 0033:0x45b399 [ 94.856329] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 94.864008] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 94.871251] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 94.878580] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 94.885821] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 94.893410] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 94.903460] batman_adv: batadv0: Adding interface: veth1_to_bridge [ 94.910192] batman_adv: batadv0: The MTU of interface veth1_to_bridge 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. [ 94.935621] batman_adv: batadv0: Interface activated: veth1_to_bridge [ 94.943088] device bridge_slave_0 left promiscuous mode [ 94.957236] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.963760] FAULT_INJECTION: forcing a failure. [ 94.963760] name failslab, interval 1, probability 0, space 0, times 0 [ 94.974977] CPU: 0 PID: 8091 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 94.984155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.993605] Call Trace: [ 94.996178] dump_stack+0xf7/0x13b [ 94.999697] should_fail.cold.3+0x105/0x14b [ 95.004082] should_failslab+0xba/0xf0 [ 95.007953] kmem_cache_alloc_node+0x56/0x790 [ 95.012436] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 95.017540] __alloc_skb+0x92/0x500 [ 95.021144] ? skb_trim+0x160/0x160 [ 95.024744] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 95.029917] ? __lock_is_held+0xb5/0x140 [ 95.034161] fdb_notify+0x88/0x130 [ 95.037676] fdb_delete+0x129/0x3a0 [ 95.041297] br_fdb_delete_by_port+0x163/0x1d0 [ 95.045855] br_stp_disable_port+0xeb/0x150 [ 95.050174] del_nbp+0x119/0x8b0 [ 95.053522] br_del_if+0xc7/0x470 [ 95.056956] br_del_slave+0x10/0x20 [ 95.060591] do_set_master+0xb6/0x1f0 [ 95.064377] do_setlink+0x9dd/0x2c50 [ 95.068069] ? trace_hardirqs_off+0x10/0x10 [ 95.072375] ? lock_downgrade+0x7f0/0x7f0 [ 95.076498] ? rtnl_register+0x20/0x20 [ 95.080359] ? trace_hardirqs_off+0x10/0x10 [ 95.084656] ? find_held_lock+0x36/0x1d0 [ 95.088700] ? __lock_acquire+0x6a4/0x4500 [ 95.092916] ? load_balance+0xb38/0x2190 [ 95.096950] ? lock_downgrade+0x7f0/0x7f0 [ 95.101073] ? lock_pin_lock+0x340/0x340 [ 95.105113] ? __lock_acquire+0x6a4/0x4500 [ 95.109935] ? trace_hardirqs_off+0x10/0x10 [ 95.114244] ? __lock_is_held+0xb5/0x140 [ 95.118285] rtnl_newlink+0xe0c/0x1390 [ 95.122154] ? trace_hardirqs_off+0x10/0x10 [ 95.126453] ? memset+0x31/0x40 [ 95.129713] ? rtnl_newlink+0x6d0/0x1390 [ 95.133760] ? rtnl_link_unregister+0x270/0x270 [ 95.138424] ? finish_task_switch+0x178/0x650 [ 95.142898] ? finish_task_switch+0x14d/0x650 [ 95.147369] ? find_held_lock+0x36/0x1d0 [ 95.151415] ? __mutex_lock+0x8b7/0x14c0 [ 95.155458] ? lock_downgrade+0x7f0/0x7f0 [ 95.159581] ? do_raw_spin_unlock+0x16a/0x250 [ 95.164081] rtnetlink_rcv_msg+0x34c/0x9e0 [ 95.168297] ? rtnl_bridge_getlink+0x760/0x760 [ 95.172860] ? find_held_lock+0x36/0x1d0 [ 95.176900] netlink_rcv_skb+0x133/0x370 [ 95.180940] ? rtnl_bridge_getlink+0x760/0x760 [ 95.185494] ? netlink_ack+0xa00/0xa00 [ 95.189362] ? netlink_deliver_tap+0x8e/0x920 [ 95.193928] rtnetlink_rcv+0x10/0x20 [ 95.197739] netlink_unicast+0x40b/0x600 [ 95.201785] ? netlink_attachskb+0x6d0/0x6d0 [ 95.206172] netlink_sendmsg+0x730/0xbd0 [ 95.210220] ? netlink_unicast+0x600/0x600 [ 95.214436] ? selinux_socket_sendmsg+0x31/0x40 [ 95.219168] ? security_socket_sendmsg+0x6a/0xa0 [ 95.223905] ? netlink_unicast+0x600/0x600 [ 95.228132] sock_sendmsg+0xb5/0xf0 [ 95.231748] ___sys_sendmsg+0x625/0x920 [ 95.235707] ? trace_hardirqs_off+0x10/0x10 [ 95.240011] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 95.244749] ? find_held_lock+0x36/0x1d0 [ 95.248810] ? lock_downgrade+0x7f0/0x7f0 [ 95.253117] ? __fget+0x1ca/0x2f0 [ 95.256544] ? __fget_light+0x166/0x200 [ 95.260492] ? __fdget+0xe/0x10 [ 95.263764] ? sockfd_lookup_light+0x1c/0x150 [ 95.275204] __sys_sendmsg+0xc1/0x140 [ 95.279004] ? SyS_shutdown+0x180/0x180 [ 95.282972] ? __sb_end_write+0xa4/0xd0 [ 95.286937] ? mutex_unlock+0xd/0x10 [ 95.290640] ? do_syscall_64+0x4c/0x5b0 [ 95.294603] ? __sys_sendmsg+0x140/0x140 [ 95.298661] SyS_sendmsg+0xd/0x20 [ 95.302194] do_syscall_64+0x1c7/0x5b0 [ 95.306060] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 95.310895] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 95.316066] RIP: 0033:0x45b399 [ 95.319235] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 95.327005] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 95.334267] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 95.341515] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 95.348768] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 95.356040] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 95.389415] batman_adv: batadv0: Adding interface: bridge_slave_0 [ 95.395879] batman_adv: batadv0: The MTU of interface bridge_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. [ 95.421691] batman_adv: batadv0: Interface activated: bridge_slave_0 [ 95.429038] FAULT_INJECTION: forcing a failure. [ 95.429038] name failslab, interval 1, probability 0, space 0, times 0 [ 95.440676] CPU: 0 PID: 8095 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 95.448472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.457857] Call Trace: [ 95.460446] dump_stack+0xf7/0x13b [ 95.463990] should_fail.cold.3+0x105/0x14b [ 95.468313] should_failslab+0xba/0xf0 [ 95.472197] kmem_cache_alloc_node_trace+0x279/0x780 [ 95.477312] __kmalloc_node_track_caller+0x3c/0x70 [ 95.482225] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 95.486972] __alloc_skb+0xc1/0x500 [ 95.490602] ? skb_trim+0x160/0x160 [ 95.494220] ? if_nlmsg_size+0x2d9/0x6f0 [ 95.498279] rtmsg_ifinfo_build_skb+0x68/0x120 [ 95.502857] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 95.507677] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 95.512591] rtnetlink_event+0xc2/0x110 [ 95.516547] notifier_call_chain+0xd6/0x150 [ 95.520866] raw_notifier_call_chain+0x11/0x20 [ 95.525571] call_netdevice_notifiers_info+0x4b/0x60 [ 95.530658] __netdev_upper_dev_link+0x18e/0x1f0 [ 95.535394] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 95.540147] netdev_master_upper_dev_link+0x14/0x20 [ 95.545151] batadv_hardif_enable_interface+0x1f4/0xa10 [ 95.550518] batadv_softif_slave_add+0x7f/0xd0 [ 95.555106] do_set_master+0x163/0x1f0 [ 95.558978] do_setlink+0x9dd/0x2c50 [ 95.562693] ? find_held_lock+0x36/0x1d0 [ 95.566746] ? rtnl_register+0x20/0x20 [ 95.570615] ? load_balance+0xb38/0x2190 [ 95.574664] ? lock_downgrade+0x7f0/0x7f0 [ 95.578798] ? lock_pin_lock+0x340/0x340 [ 95.582845] ? __lock_acquire+0x6a4/0x4500 [ 95.587076] ? trace_hardirqs_off+0x10/0x10 [ 95.591377] ? __lock_is_held+0xb5/0x140 [ 95.595431] ? trace_hardirqs_off+0x10/0x10 [ 95.599743] rtnl_newlink+0xe0c/0x1390 [ 95.603618] ? rtnl_link_unregister+0x270/0x270 [ 95.608266] ? finish_task_switch+0x178/0x650 [ 95.612756] ? finish_task_switch+0x14d/0x650 [ 95.617246] ? find_held_lock+0x36/0x1d0 [ 95.621294] ? __mutex_lock+0x8b7/0x14c0 [ 95.625352] ? lock_downgrade+0x7f0/0x7f0 [ 95.629476] ? do_raw_spin_unlock+0x16a/0x250 [ 95.633973] rtnetlink_rcv_msg+0x34c/0x9e0 [ 95.638202] ? rtnl_bridge_getlink+0x760/0x760 [ 95.642765] ? find_held_lock+0x36/0x1d0 [ 95.646805] netlink_rcv_skb+0x133/0x370 [ 95.650867] ? rtnl_bridge_getlink+0x760/0x760 [ 95.655434] ? netlink_ack+0xa00/0xa00 [ 95.659306] ? netlink_deliver_tap+0x8e/0x920 [ 95.663787] rtnetlink_rcv+0x10/0x20 [ 95.667560] netlink_unicast+0x40b/0x600 [ 95.671595] ? netlink_attachskb+0x6d0/0x6d0 [ 95.675979] netlink_sendmsg+0x730/0xbd0 [ 95.680025] ? netlink_unicast+0x600/0x600 [ 95.684259] ? selinux_socket_sendmsg+0x31/0x40 [ 95.688921] ? security_socket_sendmsg+0x6a/0xa0 [ 95.693653] ? netlink_unicast+0x600/0x600 [ 95.697869] sock_sendmsg+0xb5/0xf0 [ 95.701478] ___sys_sendmsg+0x625/0x920 [ 95.705435] ? trace_hardirqs_off+0x10/0x10 [ 95.709747] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 95.714477] ? find_held_lock+0x36/0x1d0 [ 95.718542] ? lock_downgrade+0x7f0/0x7f0 [ 95.722685] ? __fget+0x1ca/0x2f0 [ 95.726133] ? __fget_light+0x166/0x200 [ 95.730081] ? __fdget+0xe/0x10 [ 95.733338] ? sockfd_lookup_light+0x1c/0x150 [ 95.737873] __sys_sendmsg+0xc1/0x140 [ 95.741652] ? SyS_shutdown+0x180/0x180 [ 95.745606] ? __sb_end_write+0xa4/0xd0 [ 95.749573] ? mutex_unlock+0xd/0x10 [ 95.753288] ? do_syscall_64+0x4c/0x5b0 [ 95.757250] ? __sys_sendmsg+0x140/0x140 [ 95.761297] SyS_sendmsg+0xd/0x20 [ 95.764751] do_syscall_64+0x1c7/0x5b0 [ 95.768665] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 95.773502] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 95.778671] RIP: 0033:0x45b399 [ 95.781854] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 95.789547] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 95.796798] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 95.804049] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 95.811319] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 95.818571] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 95.828846] batman_adv: batadv0: Adding interface: veth1_to_bridge [ 95.835184] batman_adv: batadv0: The MTU of interface veth1_to_bridge 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. [ 95.860631] batman_adv: batadv0: Interface activated: veth1_to_bridge [ 95.867834] FAULT_INJECTION: forcing a failure. [ 95.867834] name failslab, interval 1, probability 0, space 0, times 0 [ 95.893019] CPU: 0 PID: 8099 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 95.900837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 95.910207] Call Trace: [ 95.912773] dump_stack+0xf7/0x13b [ 95.916315] should_fail.cold.3+0x105/0x14b [ 95.920613] should_failslab+0xba/0xf0 [ 95.924476] kmem_cache_alloc_node+0x287/0x790 [ 95.929037] __alloc_skb+0x92/0x500 [ 95.932637] ? skb_trim+0x160/0x160 [ 95.936238] ? if_nlmsg_size+0x2d9/0x6f0 [ 95.940282] rtmsg_ifinfo_build_skb+0x68/0x120 [ 95.944837] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 95.949653] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 95.954555] rtnetlink_event+0xc2/0x110 [ 95.958519] notifier_call_chain+0xd6/0x150 [ 95.962816] raw_notifier_call_chain+0x11/0x20 [ 95.967373] call_netdevice_notifiers_info+0x4b/0x60 [ 95.972452] __netdev_upper_dev_link+0x18e/0x1f0 [ 95.977217] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 95.981949] netdev_master_upper_dev_link+0x14/0x20 [ 95.986940] batadv_hardif_enable_interface+0x1f4/0xa10 [ 95.992281] batadv_softif_slave_add+0x7f/0xd0 [ 95.996837] do_set_master+0x163/0x1f0 [ 96.000698] do_setlink+0x9dd/0x2c50 [ 96.004395] ? find_held_lock+0x36/0x1d0 [ 96.008439] ? rtnl_register+0x20/0x20 [ 96.012384] ? load_balance+0xb38/0x2190 [ 96.016442] ? lock_downgrade+0x7f0/0x7f0 [ 96.020561] ? lock_pin_lock+0x340/0x340 [ 96.024600] ? __lock_acquire+0x6a4/0x4500 [ 96.028822] ? trace_hardirqs_off+0x10/0x10 [ 96.033117] ? __lock_is_held+0xb5/0x140 [ 96.037168] ? trace_hardirqs_off+0x10/0x10 [ 96.041482] rtnl_newlink+0xe0c/0x1390 [ 96.045349] ? rtnl_link_unregister+0x270/0x270 [ 96.050858] ? finish_task_switch+0x178/0x650 [ 96.055323] ? finish_task_switch+0x14d/0x650 [ 96.059809] ? find_held_lock+0x36/0x1d0 [ 96.063845] ? __mutex_lock+0x8b7/0x14c0 [ 96.067965] ? lock_downgrade+0x7f0/0x7f0 [ 96.072090] ? do_raw_spin_unlock+0x16a/0x250 [ 96.076578] rtnetlink_rcv_msg+0x34c/0x9e0 [ 96.080802] ? rtnl_bridge_getlink+0x760/0x760 [ 96.085357] ? find_held_lock+0x36/0x1d0 [ 96.089416] netlink_rcv_skb+0x133/0x370 [ 96.093455] ? rtnl_bridge_getlink+0x760/0x760 [ 96.098031] ? netlink_ack+0xa00/0xa00 [ 96.101915] ? netlink_deliver_tap+0x8e/0x920 [ 96.106386] rtnetlink_rcv+0x10/0x20 [ 96.110083] netlink_unicast+0x40b/0x600 [ 96.114140] ? netlink_attachskb+0x6d0/0x6d0 [ 96.118524] netlink_sendmsg+0x730/0xbd0 [ 96.122562] ? netlink_unicast+0x600/0x600 [ 96.126771] ? selinux_socket_sendmsg+0x31/0x40 [ 96.131420] ? security_socket_sendmsg+0x6a/0xa0 [ 96.136152] ? netlink_unicast+0x600/0x600 [ 96.140363] sock_sendmsg+0xb5/0xf0 [ 96.143963] ___sys_sendmsg+0x625/0x920 [ 96.147916] ? trace_hardirqs_off+0x10/0x10 [ 96.152213] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 96.156965] ? find_held_lock+0x36/0x1d0 [ 96.161021] ? lock_downgrade+0x7f0/0x7f0 [ 96.165151] ? __fget+0x1ca/0x2f0 [ 96.168586] ? __fget_light+0x166/0x200 [ 96.172553] ? __fdget+0xe/0x10 [ 96.175807] ? sockfd_lookup_light+0x1c/0x150 [ 96.180280] __sys_sendmsg+0xc1/0x140 [ 96.184056] ? SyS_shutdown+0x180/0x180 [ 96.188004] ? __sb_end_write+0xa4/0xd0 [ 96.191974] ? mutex_unlock+0xd/0x10 [ 96.195695] ? do_syscall_64+0x4c/0x5b0 [ 96.199643] ? __sys_sendmsg+0x140/0x140 [ 96.203696] SyS_sendmsg+0xd/0x20 [ 96.207123] do_syscall_64+0x1c7/0x5b0 [ 96.210993] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 96.215824] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 96.221020] RIP: 0033:0x45b399 [ 96.224217] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 96.231904] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 96.239172] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 96.246417] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 96.253685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 96.260955] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 96.271425] batman_adv: batadv0: Adding interface: veth1_to_team [ 96.277754] batman_adv: batadv0: The MTU of interface veth1_to_team 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. [ 96.303052] batman_adv: batadv0: Interface activated: veth1_to_team [ 96.312417] FAULT_INJECTION: forcing a failure. [ 96.312417] name failslab, interval 1, probability 0, space 0, times 0 [ 96.324504] CPU: 1 PID: 8104 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 96.332298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.341734] Call Trace: [ 96.344316] dump_stack+0xf7/0x13b [ 96.347858] should_fail.cold.3+0x105/0x14b [ 96.352272] should_failslab+0xba/0xf0 [ 96.356150] kmem_cache_alloc_node_trace+0x279/0x780 [ 96.361243] __kmalloc_node_track_caller+0x3c/0x70 [ 96.366285] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 96.371025] __alloc_skb+0xc1/0x500 [ 96.374628] ? skb_trim+0x160/0x160 [ 96.378239] ? if_nlmsg_size+0x2d9/0x6f0 [ 96.382284] rtmsg_ifinfo_build_skb+0x68/0x120 [ 96.386857] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 96.391744] rtmsg_ifinfo+0x4a/0x70 [ 96.395356] bond_upper_dev_unlink.isra.45+0x95/0xc0 [ 96.400500] __bond_release_one+0x2c2/0x1370 [ 96.404944] ? notifier_call_chain+0xd6/0x150 [ 96.409451] ? bond_enslave+0x4a80/0x4a80 [ 96.413583] ? raw_notifier_call_chain+0x11/0x20 [ 96.418338] ? call_netdevice_notifiers_info+0x4b/0x60 [ 96.424123] ? __dev_notify_flags+0x1c1/0x210 [ 96.428669] ? dev_change_name+0x8f0/0x8f0 [ 96.433053] ? __dev_change_flags+0x151/0x550 [ 96.437525] ? dev_set_allmulti+0x10/0x10 [ 96.441707] ? trace_hardirqs_off+0x10/0x10 [ 96.446356] ? lock_downgrade+0x7f0/0x7f0 [ 96.450484] ? trace_hardirqs_off+0x10/0x10 [ 96.454847] bond_release+0xd/0x10 [ 96.458425] do_set_master+0xb6/0x1f0 [ 96.462214] do_setlink+0x9dd/0x2c50 [ 96.465913] ? rtnl_register+0x20/0x20 [ 96.469784] ? __lock_acquire+0x6a4/0x4500 [ 96.474066] ? load_balance+0xb38/0x2190 [ 96.478107] ? lock_downgrade+0x7f0/0x7f0 [ 96.482238] ? lock_pin_lock+0x340/0x340 [ 96.486277] ? __lock_acquire+0x6a4/0x4500 [ 96.490489] ? trace_hardirqs_off+0x10/0x10 [ 96.494786] ? __lock_is_held+0xb5/0x140 [ 96.498843] ? trace_hardirqs_off+0x10/0x10 [ 96.503147] rtnl_newlink+0xe0c/0x1390 [ 96.507070] ? memset+0x31/0x40 [ 96.510333] ? rtnl_newlink+0x6d0/0x1390 [ 96.514500] ? rtnl_link_unregister+0x270/0x270 [ 96.519207] ? finish_task_switch+0x178/0x650 [ 96.523680] ? finish_task_switch+0x14d/0x650 [ 96.528155] ? find_held_lock+0x36/0x1d0 [ 96.532257] ? __mutex_lock+0x8b7/0x14c0 [ 96.536299] ? lock_downgrade+0x7f0/0x7f0 [ 96.540426] ? do_raw_spin_unlock+0x16a/0x250 [ 96.544913] rtnetlink_rcv_msg+0x34c/0x9e0 [ 96.549128] ? rtnl_bridge_getlink+0x760/0x760 [ 96.553689] ? find_held_lock+0x36/0x1d0 [ 96.557729] netlink_rcv_skb+0x133/0x370 [ 96.561775] ? rtnl_bridge_getlink+0x760/0x760 [ 96.566340] ? netlink_ack+0xa00/0xa00 [ 96.570207] ? netlink_deliver_tap+0x8e/0x920 [ 96.574680] rtnetlink_rcv+0x10/0x20 [ 96.578370] netlink_unicast+0x40b/0x600 [ 96.582409] ? netlink_attachskb+0x6d0/0x6d0 [ 96.586794] netlink_sendmsg+0x730/0xbd0 [ 96.590833] ? netlink_unicast+0x600/0x600 [ 96.595043] ? selinux_socket_sendmsg+0x31/0x40 [ 96.599695] ? security_socket_sendmsg+0x6a/0xa0 [ 96.604436] ? netlink_unicast+0x600/0x600 [ 96.608654] sock_sendmsg+0xb5/0xf0 [ 96.612297] ___sys_sendmsg+0x625/0x920 [ 96.616250] ? trace_hardirqs_off+0x10/0x10 [ 96.620547] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 96.625286] ? find_held_lock+0x36/0x1d0 [ 96.629372] ? lock_downgrade+0x7f0/0x7f0 [ 96.633500] ? __fget+0x1ca/0x2f0 [ 96.637104] ? __fget_light+0x166/0x200 [ 96.641073] ? __fdget+0xe/0x10 [ 96.644367] ? sockfd_lookup_light+0x1c/0x150 [ 96.648837] __sys_sendmsg+0xc1/0x140 [ 96.652612] ? SyS_shutdown+0x180/0x180 [ 96.656561] ? __sb_end_write+0xa4/0xd0 [ 96.660533] ? mutex_unlock+0xd/0x10 [ 96.664234] ? do_syscall_64+0x4c/0x5b0 [ 96.668201] ? __sys_sendmsg+0x140/0x140 [ 96.672254] SyS_sendmsg+0xd/0x20 [ 96.675683] do_syscall_64+0x1c7/0x5b0 [ 96.679557] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 96.684382] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 96.689573] RIP: 0033:0x45b399 [ 96.692741] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 96.700425] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 96.707671] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 96.714916] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 96.722161] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 96.729405] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 96.758499] bond0: Releasing backup interface bond_slave_0 [ 96.802226] batman_adv: batadv0: Adding interface: bond_slave_0 [ 96.808666] batman_adv: batadv0: The MTU of interface bond_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. [ 96.834472] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 96.845433] FAULT_INJECTION: forcing a failure. [ 96.845433] name failslab, interval 1, probability 0, space 0, times 0 [ 96.859338] CPU: 0 PID: 8107 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 96.867137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 96.876486] Call Trace: [ 96.879071] dump_stack+0xf7/0x13b [ 96.882613] should_fail.cold.3+0x105/0x14b [ 96.886939] should_failslab+0xba/0xf0 [ 96.890825] kmem_cache_alloc_node_trace+0x279/0x780 [ 96.895909] __kmalloc_node_track_caller+0x3c/0x70 [ 96.900945] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 96.905683] __alloc_skb+0xc1/0x500 [ 96.909284] ? skb_trim+0x160/0x160 [ 96.912886] ? if_nlmsg_size+0x2d9/0x6f0 [ 96.916923] rtmsg_ifinfo_build_skb+0x68/0x120 [ 96.921486] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 96.926309] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 96.931216] rtnetlink_event+0xc2/0x110 [ 96.935174] notifier_call_chain+0xd6/0x150 [ 96.939481] raw_notifier_call_chain+0x11/0x20 [ 96.944061] call_netdevice_notifiers_info+0x4b/0x60 [ 96.949147] __netdev_upper_dev_link+0x18e/0x1f0 [ 96.953880] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 96.958626] netdev_master_upper_dev_link+0x14/0x20 [ 96.963634] batadv_hardif_enable_interface+0x1f4/0xa10 [ 96.968976] batadv_softif_slave_add+0x7f/0xd0 [ 96.973532] do_set_master+0x163/0x1f0 [ 96.977418] do_setlink+0x9dd/0x2c50 [ 96.981120] ? find_held_lock+0x36/0x1d0 [ 96.985171] ? rtnl_register+0x20/0x20 [ 96.989037] ? load_balance+0xb38/0x2190 [ 96.993073] ? lock_downgrade+0x7f0/0x7f0 [ 96.997213] ? lock_pin_lock+0x340/0x340 [ 97.001266] ? __lock_acquire+0x6a4/0x4500 [ 97.005502] ? trace_hardirqs_off+0x10/0x10 [ 97.009909] ? __lock_is_held+0xb5/0x140 [ 97.013948] ? trace_hardirqs_off+0x10/0x10 [ 97.018251] rtnl_newlink+0xe0c/0x1390 [ 97.022119] ? rtnl_link_unregister+0x270/0x270 [ 97.026765] ? finish_task_switch+0x178/0x650 [ 97.031238] ? finish_task_switch+0x14d/0x650 [ 97.035732] ? find_held_lock+0x36/0x1d0 [ 97.039789] ? __mutex_lock+0x8b7/0x14c0 [ 97.043833] ? lock_downgrade+0x7f0/0x7f0 [ 97.047959] ? do_raw_spin_unlock+0x16a/0x250 [ 97.052463] rtnetlink_rcv_msg+0x34c/0x9e0 [ 97.056699] ? rtnl_bridge_getlink+0x760/0x760 [ 97.061268] ? find_held_lock+0x36/0x1d0 [ 97.065314] netlink_rcv_skb+0x133/0x370 [ 97.069372] ? rtnl_bridge_getlink+0x760/0x760 [ 97.073936] ? netlink_ack+0xa00/0xa00 [ 97.077832] ? netlink_deliver_tap+0x8e/0x920 [ 97.082307] rtnetlink_rcv+0x10/0x20 [ 97.086000] netlink_unicast+0x40b/0x600 [ 97.090054] ? netlink_attachskb+0x6d0/0x6d0 [ 97.094468] netlink_sendmsg+0x730/0xbd0 [ 97.098605] ? netlink_unicast+0x600/0x600 [ 97.102823] ? selinux_socket_sendmsg+0x31/0x40 [ 97.107471] ? security_socket_sendmsg+0x6a/0xa0 [ 97.112202] ? netlink_unicast+0x600/0x600 [ 97.116434] sock_sendmsg+0xb5/0xf0 [ 97.120084] ___sys_sendmsg+0x625/0x920 [ 97.124046] ? trace_hardirqs_off+0x10/0x10 [ 97.128345] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 97.133095] ? find_held_lock+0x36/0x1d0 [ 97.137154] ? lock_downgrade+0x7f0/0x7f0 [ 97.141288] ? __fget+0x1ca/0x2f0 [ 97.144726] ? __fget_light+0x166/0x200 [ 97.148678] ? __fdget+0xe/0x10 [ 97.151934] ? sockfd_lookup_light+0x1c/0x150 [ 97.156405] __sys_sendmsg+0xc1/0x140 [ 97.160187] ? SyS_shutdown+0x180/0x180 [ 97.164180] ? __sb_end_write+0xa4/0xd0 [ 97.168143] ? mutex_unlock+0xd/0x10 [ 97.171838] ? do_syscall_64+0x4c/0x5b0 [ 97.175795] ? __sys_sendmsg+0x140/0x140 [ 97.179837] SyS_sendmsg+0xd/0x20 [ 97.183294] do_syscall_64+0x1c7/0x5b0 [ 97.187177] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 97.192018] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 97.197200] RIP: 0033:0x45b399 [ 97.200372] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 97.208636] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 97.217059] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 97.224307] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 97.231584] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 97.238834] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 97.248261] batman_adv: batadv0: Adding interface: veth1_to_bridge [ 97.254796] batman_adv: batadv0: The MTU of interface veth1_to_bridge 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. [ 97.280292] batman_adv: batadv0: Interface activated: veth1_to_bridge [ 97.287666] FAULT_INJECTION: forcing a failure. [ 97.287666] name failslab, interval 1, probability 0, space 0, times 0 [ 97.310064] CPU: 0 PID: 8111 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 97.317882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.327237] Call Trace: [ 97.329825] dump_stack+0xf7/0x13b [ 97.333369] should_fail.cold.3+0x105/0x14b [ 97.337762] should_failslab+0xba/0xf0 [ 97.341636] kmem_cache_alloc_node_trace+0x279/0x780 [ 97.346728] __kmalloc_node_track_caller+0x3c/0x70 [ 97.351663] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 97.356421] __alloc_skb+0xc1/0x500 [ 97.360044] ? skb_trim+0x160/0x160 [ 97.363663] ? if_nlmsg_size+0x2d9/0x6f0 [ 97.367708] rtmsg_ifinfo_build_skb+0x68/0x120 [ 97.372276] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 97.377095] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 97.382003] rtnetlink_event+0xc2/0x110 [ 97.385956] notifier_call_chain+0xd6/0x150 [ 97.390375] raw_notifier_call_chain+0x11/0x20 [ 97.394938] call_netdevice_notifiers_info+0x4b/0x60 [ 97.400030] __netdev_upper_dev_link+0x18e/0x1f0 [ 97.404779] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 97.409527] netdev_master_upper_dev_link+0x14/0x20 [ 97.414621] batadv_hardif_enable_interface+0x1f4/0xa10 [ 97.419976] batadv_softif_slave_add+0x7f/0xd0 [ 97.424547] do_set_master+0x163/0x1f0 [ 97.428465] do_setlink+0x9dd/0x2c50 [ 97.432157] ? find_held_lock+0x36/0x1d0 [ 97.436196] ? rtnl_register+0x20/0x20 [ 97.440062] ? load_balance+0xb38/0x2190 [ 97.444106] ? lock_downgrade+0x7f0/0x7f0 [ 97.448257] ? lock_pin_lock+0x340/0x340 [ 97.452333] ? __lock_acquire+0x6a4/0x4500 [ 97.456548] ? trace_hardirqs_off+0x10/0x10 [ 97.460851] ? __lock_is_held+0xb5/0x140 [ 97.464902] ? trace_hardirqs_off+0x10/0x10 [ 97.469236] rtnl_newlink+0xe0c/0x1390 [ 97.473111] ? rtnl_link_unregister+0x270/0x270 [ 97.477775] ? finish_task_switch+0x178/0x650 [ 97.482272] ? finish_task_switch+0x14d/0x650 [ 97.486786] ? find_held_lock+0x36/0x1d0 [ 97.490846] ? __mutex_lock+0x8b7/0x14c0 [ 97.494881] ? lock_downgrade+0x7f0/0x7f0 [ 97.499017] ? do_raw_spin_unlock+0x16a/0x250 [ 97.503533] rtnetlink_rcv_msg+0x34c/0x9e0 [ 97.507744] ? rtnl_bridge_getlink+0x760/0x760 [ 97.512302] ? find_held_lock+0x36/0x1d0 [ 97.516358] netlink_rcv_skb+0x133/0x370 [ 97.520404] ? rtnl_bridge_getlink+0x760/0x760 [ 97.524986] ? netlink_ack+0xa00/0xa00 [ 97.528868] ? netlink_deliver_tap+0x8e/0x920 [ 97.533341] rtnetlink_rcv+0x10/0x20 [ 97.537046] netlink_unicast+0x40b/0x600 [ 97.541092] ? netlink_attachskb+0x6d0/0x6d0 [ 97.545503] netlink_sendmsg+0x730/0xbd0 [ 97.549549] ? netlink_unicast+0x600/0x600 [ 97.553767] ? selinux_socket_sendmsg+0x31/0x40 [ 97.558417] ? security_socket_sendmsg+0x6a/0xa0 [ 97.563156] ? netlink_unicast+0x600/0x600 [ 97.567370] sock_sendmsg+0xb5/0xf0 [ 97.570977] ___sys_sendmsg+0x625/0x920 [ 97.574979] ? trace_hardirqs_off+0x10/0x10 [ 97.579283] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 97.584034] ? find_held_lock+0x36/0x1d0 [ 97.588121] ? lock_downgrade+0x7f0/0x7f0 [ 97.592306] ? __fget+0x1ca/0x2f0 [ 97.595749] ? __fget_light+0x166/0x200 [ 97.599707] ? __fdget+0xe/0x10 [ 97.602969] ? sockfd_lookup_light+0x1c/0x150 [ 97.607584] __sys_sendmsg+0xc1/0x140 [ 97.611368] ? SyS_shutdown+0x180/0x180 [ 97.615327] ? __sb_end_write+0xa4/0xd0 [ 97.619305] ? mutex_unlock+0xd/0x10 [ 97.623008] ? do_syscall_64+0x4c/0x5b0 [ 97.626961] ? __sys_sendmsg+0x140/0x140 [ 97.631154] SyS_sendmsg+0xd/0x20 [ 97.634638] do_syscall_64+0x1c7/0x5b0 [ 97.638505] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 97.643352] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 97.648520] RIP: 0033:0x45b399 [ 97.651688] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 97.659382] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 97.666637] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 97.673900] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 97.681151] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 97.688404] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 97.697786] batman_adv: batadv0: Adding interface: veth0_to_bond [ 97.704161] batman_adv: batadv0: The MTU of interface veth0_to_bond 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. [ 97.729508] batman_adv: batadv0: Interface activated: veth0_to_bond [ 97.736625] device bridge_slave_1 left promiscuous mode [ 97.753889] bridge0: port 2(bridge_slave_1) entered disabled state [ 97.760336] FAULT_INJECTION: forcing a failure. [ 97.760336] name failslab, interval 1, probability 0, space 0, times 0 [ 97.771576] CPU: 1 PID: 8117 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 97.779450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.788783] Call Trace: [ 97.791372] dump_stack+0xf7/0x13b [ 97.794898] should_fail.cold.3+0x105/0x14b [ 97.799211] should_failslab+0xba/0xf0 [ 97.803083] kmem_cache_alloc_node+0x56/0x790 [ 97.807555] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 97.812642] __alloc_skb+0x92/0x500 [ 97.816323] ? skb_trim+0x160/0x160 [ 97.819926] ? br_switchdev_set_port_flag+0x1e0/0x1e0 [ 97.825102] ? __lock_is_held+0xb5/0x140 [ 97.829150] fdb_notify+0x88/0x130 [ 97.832843] fdb_delete+0x129/0x3a0 [ 97.836446] br_fdb_delete_by_port+0x163/0x1d0 [ 97.841014] br_stp_disable_port+0xeb/0x150 [ 97.845312] del_nbp+0x119/0x8b0 [ 97.848675] br_del_if+0xc7/0x470 [ 97.852132] br_del_slave+0x10/0x20 [ 97.855742] do_set_master+0xb6/0x1f0 [ 97.859526] do_setlink+0x9dd/0x2c50 [ 97.863216] ? trace_hardirqs_off+0x10/0x10 [ 97.867511] ? lock_downgrade+0x7f0/0x7f0 [ 97.871632] ? trace_hardirqs_off+0x10/0x10 [ 97.875928] ? rtnl_register+0x20/0x20 [ 97.879788] ? trace_hardirqs_off+0x10/0x10 [ 97.884171] ? __lock_is_held+0xb5/0x140 [ 97.888208] ? find_held_lock+0x36/0x1d0 [ 97.892252] ? __lock_acquire+0x6a4/0x4500 [ 97.896479] ? load_balance+0xb38/0x2190 [ 97.900515] ? lock_downgrade+0x7f0/0x7f0 [ 97.904636] ? lock_pin_lock+0x340/0x340 [ 97.908698] ? __lock_acquire+0x6a4/0x4500 [ 97.912912] ? trace_hardirqs_off+0x10/0x10 [ 97.917227] ? __lock_is_held+0xb5/0x140 [ 97.921283] rtnl_newlink+0xe0c/0x1390 [ 97.925149] ? trace_hardirqs_off+0x10/0x10 [ 97.929469] ? memset+0x31/0x40 [ 97.932724] ? rtnl_newlink+0x6d0/0x1390 [ 97.936764] ? rtnl_link_unregister+0x270/0x270 [ 97.941428] ? finish_task_switch+0x178/0x650 [ 97.945984] ? finish_task_switch+0x14d/0x650 [ 97.950458] ? find_held_lock+0x36/0x1d0 [ 97.954495] ? __mutex_lock+0x8b7/0x14c0 [ 97.958537] ? lock_downgrade+0x7f0/0x7f0 [ 97.962682] ? do_raw_spin_unlock+0x16a/0x250 [ 97.967168] rtnetlink_rcv_msg+0x34c/0x9e0 [ 97.971407] ? rtnl_bridge_getlink+0x760/0x760 [ 97.976031] ? find_held_lock+0x36/0x1d0 [ 97.980106] netlink_rcv_skb+0x133/0x370 [ 97.984150] ? rtnl_bridge_getlink+0x760/0x760 [ 97.988720] ? netlink_ack+0xa00/0xa00 [ 97.992601] ? netlink_deliver_tap+0x8e/0x920 [ 97.997078] rtnetlink_rcv+0x10/0x20 [ 98.000773] netlink_unicast+0x40b/0x600 [ 98.004819] ? netlink_attachskb+0x6d0/0x6d0 [ 98.009205] netlink_sendmsg+0x730/0xbd0 [ 98.013242] ? netlink_unicast+0x600/0x600 [ 98.017555] ? selinux_socket_sendmsg+0x31/0x40 [ 98.022200] ? security_socket_sendmsg+0x6a/0xa0 [ 98.026929] ? netlink_unicast+0x600/0x600 [ 98.031315] sock_sendmsg+0xb5/0xf0 [ 98.034918] ___sys_sendmsg+0x625/0x920 [ 98.038876] ? trace_hardirqs_off+0x10/0x10 [ 98.043179] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 98.047917] ? find_held_lock+0x36/0x1d0 [ 98.051966] ? lock_downgrade+0x7f0/0x7f0 [ 98.056112] ? __fget+0x1ca/0x2f0 [ 98.059544] ? __fget_light+0x166/0x200 [ 98.063494] ? __fdget+0xe/0x10 [ 98.066750] ? sockfd_lookup_light+0x1c/0x150 [ 98.071221] __sys_sendmsg+0xc1/0x140 [ 98.075026] ? SyS_shutdown+0x180/0x180 [ 98.078984] ? __sb_end_write+0xa4/0xd0 [ 98.082945] ? mutex_unlock+0xd/0x10 [ 98.086659] ? do_syscall_64+0x4c/0x5b0 [ 98.090615] ? __sys_sendmsg+0x140/0x140 [ 98.094657] SyS_sendmsg+0xd/0x20 [ 98.098085] do_syscall_64+0x1c7/0x5b0 [ 98.101947] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.106785] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 98.111976] RIP: 0033:0x45b399 [ 98.115145] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 98.122983] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 98.130289] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 98.137549] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 98.144801] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 98.152069] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e 2020/06/04 21:06:16 executed programs: 90 [ 98.190286] batman_adv: batadv0: Adding interface: bridge_slave_1 [ 98.196648] batman_adv: batadv0: The MTU of interface bridge_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. [ 98.222012] batman_adv: batadv0: Interface activated: bridge_slave_1 [ 98.229318] FAULT_INJECTION: forcing a failure. [ 98.229318] name failslab, interval 1, probability 0, space 0, times 0 [ 98.241930] CPU: 0 PID: 8119 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 98.249733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.259080] Call Trace: [ 98.261662] dump_stack+0xf7/0x13b [ 98.265200] should_fail.cold.3+0x105/0x14b [ 98.269520] should_failslab+0xba/0xf0 [ 98.273407] kmem_cache_alloc_node_trace+0x279/0x780 [ 98.278525] __kmalloc_node_track_caller+0x3c/0x70 [ 98.283449] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 98.288192] __alloc_skb+0xc1/0x500 [ 98.291797] ? skb_trim+0x160/0x160 [ 98.295402] ? if_nlmsg_size+0x2d9/0x6f0 [ 98.299553] rtmsg_ifinfo_build_skb+0x68/0x120 [ 98.304155] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 98.308982] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 98.313912] rtnetlink_event+0xc2/0x110 [ 98.317871] notifier_call_chain+0xd6/0x150 [ 98.322187] raw_notifier_call_chain+0x11/0x20 [ 98.326760] call_netdevice_notifiers_info+0x4b/0x60 [ 98.331950] __netdev_upper_dev_link+0x18e/0x1f0 [ 98.336686] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 98.341437] netdev_master_upper_dev_link+0x14/0x20 [ 98.346437] batadv_hardif_enable_interface+0x1f4/0xa10 [ 98.351790] batadv_softif_slave_add+0x7f/0xd0 [ 98.356354] do_set_master+0x163/0x1f0 [ 98.360340] do_setlink+0x9dd/0x2c50 [ 98.364040] ? find_held_lock+0x36/0x1d0 [ 98.368165] ? rtnl_register+0x20/0x20 [ 98.372034] ? load_balance+0xb38/0x2190 [ 98.376075] ? lock_downgrade+0x7f0/0x7f0 [ 98.380224] ? lock_pin_lock+0x340/0x340 [ 98.384277] ? __lock_acquire+0x6a4/0x4500 [ 98.388498] ? trace_hardirqs_off+0x10/0x10 [ 98.392808] ? __lock_is_held+0xb5/0x140 [ 98.397002] ? trace_hardirqs_off+0x10/0x10 [ 98.401330] rtnl_newlink+0xe0c/0x1390 [ 98.405212] ? rtnl_link_unregister+0x270/0x270 [ 98.409936] ? finish_task_switch+0x178/0x650 [ 98.414410] ? finish_task_switch+0x14d/0x650 [ 98.418913] ? find_held_lock+0x36/0x1d0 [ 98.422984] ? __mutex_lock+0x8b7/0x14c0 [ 98.427030] ? lock_downgrade+0x7f0/0x7f0 [ 98.431165] ? do_raw_spin_unlock+0x16a/0x250 [ 98.435666] rtnetlink_rcv_msg+0x34c/0x9e0 [ 98.439890] ? rtnl_bridge_getlink+0x760/0x760 [ 98.444465] ? find_held_lock+0x36/0x1d0 [ 98.448505] netlink_rcv_skb+0x133/0x370 [ 98.452568] ? rtnl_bridge_getlink+0x760/0x760 [ 98.457140] ? netlink_ack+0xa00/0xa00 [ 98.461021] ? netlink_deliver_tap+0x8e/0x920 [ 98.465501] rtnetlink_rcv+0x10/0x20 [ 98.469192] netlink_unicast+0x40b/0x600 [ 98.473265] ? netlink_attachskb+0x6d0/0x6d0 [ 98.477678] netlink_sendmsg+0x730/0xbd0 [ 98.481724] ? netlink_unicast+0x600/0x600 [ 98.485950] ? selinux_socket_sendmsg+0x31/0x40 [ 98.490607] ? security_socket_sendmsg+0x6a/0xa0 [ 98.495339] ? netlink_unicast+0x600/0x600 [ 98.499556] sock_sendmsg+0xb5/0xf0 [ 98.503168] ___sys_sendmsg+0x625/0x920 [ 98.507127] ? trace_hardirqs_off+0x10/0x10 [ 98.511431] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 98.516165] ? find_held_lock+0x36/0x1d0 [ 98.520223] ? lock_downgrade+0x7f0/0x7f0 [ 98.524359] ? __fget+0x1ca/0x2f0 [ 98.527789] ? __fget_light+0x166/0x200 [ 98.532001] ? __fdget+0xe/0x10 [ 98.535258] ? sockfd_lookup_light+0x1c/0x150 [ 98.539739] __sys_sendmsg+0xc1/0x140 [ 98.543529] ? SyS_shutdown+0x180/0x180 [ 98.547486] ? __sb_end_write+0xa4/0xd0 [ 98.551447] ? mutex_unlock+0xd/0x10 [ 98.555150] ? do_syscall_64+0x4c/0x5b0 [ 98.559248] ? __sys_sendmsg+0x140/0x140 [ 98.563303] SyS_sendmsg+0xd/0x20 [ 98.566737] do_syscall_64+0x1c7/0x5b0 [ 98.570656] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 98.575483] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 98.580657] RIP: 0033:0x45b399 [ 98.583908] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 98.591598] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 98.598863] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 98.606113] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 98.613361] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 98.620614] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 98.630643] batman_adv: batadv0: Adding interface: veth0_to_bond [ 98.636798] batman_adv: batadv0: The MTU of interface veth0_to_bond 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. [ 98.662832] batman_adv: batadv0: Interface activated: veth0_to_bond [ 98.670025] FAULT_INJECTION: forcing a failure. [ 98.670025] name failslab, interval 1, probability 0, space 0, times 0 [ 98.685883] CPU: 1 PID: 8123 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 98.693687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 98.703037] Call Trace: [ 98.705625] dump_stack+0xf7/0x13b [ 98.709169] should_fail.cold.3+0x105/0x14b [ 98.713491] should_failslab+0xba/0xf0 [ 98.717368] kmem_cache_alloc_node_trace+0x279/0x780 [ 98.722580] __kmalloc_node_track_caller+0x3c/0x70 [ 98.727488] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 98.732243] __alloc_skb+0xc1/0x500 [ 98.735844] ? skb_trim+0x160/0x160 [ 98.739448] ? if_nlmsg_size+0x2d9/0x6f0 [ 98.743483] rtmsg_ifinfo_build_skb+0x68/0x120 [ 98.748040] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 98.752858] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 98.757768] rtnetlink_event+0xc2/0x110 [ 98.761829] notifier_call_chain+0xd6/0x150 [ 98.766130] raw_notifier_call_chain+0x11/0x20 [ 98.770707] call_netdevice_notifiers_info+0x4b/0x60 [ 98.775809] __netdev_upper_dev_link+0x18e/0x1f0 [ 98.780548] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 98.785284] netdev_master_upper_dev_link+0x14/0x20 [ 98.790276] batadv_hardif_enable_interface+0x1f4/0xa10 [ 98.795638] batadv_softif_slave_add+0x7f/0xd0 [ 98.800213] do_set_master+0x163/0x1f0 [ 98.804076] do_setlink+0x9dd/0x2c50 [ 98.807789] ? find_held_lock+0x36/0x1d0 [ 98.811893] ? rtnl_register+0x20/0x20 [ 98.815812] ? load_balance+0xb38/0x2190 [ 98.819861] ? lock_downgrade+0x7f0/0x7f0 [ 98.823988] ? lock_pin_lock+0x340/0x340 [ 98.828032] ? __lock_acquire+0x6a4/0x4500 [ 98.832264] ? trace_hardirqs_off+0x10/0x10 [ 98.836584] ? __lock_is_held+0xb5/0x140 [ 98.840623] ? trace_hardirqs_off+0x10/0x10 [ 98.844927] rtnl_newlink+0xe0c/0x1390 [ 98.848819] ? rtnl_link_unregister+0x270/0x270 [ 98.853569] ? finish_task_switch+0x178/0x650 [ 98.858037] ? finish_task_switch+0x14d/0x650 [ 98.862526] ? find_held_lock+0x36/0x1d0 [ 98.866564] ? __mutex_lock+0x8b7/0x14c0 [ 98.870598] ? lock_downgrade+0x7f0/0x7f0 [ 98.874737] ? do_raw_spin_unlock+0x16a/0x250 [ 98.879237] rtnetlink_rcv_msg+0x34c/0x9e0 [ 98.883452] ? rtnl_bridge_getlink+0x760/0x760 [ 98.888020] ? find_held_lock+0x36/0x1d0 [ 98.892074] netlink_rcv_skb+0x133/0x370 [ 98.896109] ? rtnl_bridge_getlink+0x760/0x760 [ 98.900667] ? netlink_ack+0xa00/0xa00 [ 98.904533] ? netlink_deliver_tap+0x8e/0x920 [ 98.909264] rtnetlink_rcv+0x10/0x20 [ 98.912974] netlink_unicast+0x40b/0x600 [ 98.917011] ? netlink_attachskb+0x6d0/0x6d0 [ 98.921410] netlink_sendmsg+0x730/0xbd0 [ 98.925446] ? netlink_unicast+0x600/0x600 [ 98.929656] ? selinux_socket_sendmsg+0x31/0x40 [ 98.934299] ? security_socket_sendmsg+0x6a/0xa0 [ 98.939034] ? netlink_unicast+0x600/0x600 [ 98.943254] sock_sendmsg+0xb5/0xf0 [ 98.946860] ___sys_sendmsg+0x625/0x920 [ 98.950822] ? trace_hardirqs_off+0x10/0x10 [ 98.955309] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 98.960047] ? find_held_lock+0x36/0x1d0 [ 98.964085] ? lock_downgrade+0x7f0/0x7f0 [ 98.968211] ? __fget+0x1ca/0x2f0 [ 98.971658] ? __fget_light+0x166/0x200 [ 98.975605] ? __fdget+0xe/0x10 [ 98.978856] ? sockfd_lookup_light+0x1c/0x150 [ 98.983337] __sys_sendmsg+0xc1/0x140 [ 98.987112] ? SyS_shutdown+0x180/0x180 [ 98.991074] ? __sb_end_write+0xa4/0xd0 [ 98.995031] ? mutex_unlock+0xd/0x10 [ 98.998739] ? do_syscall_64+0x4c/0x5b0 [ 99.002700] ? __sys_sendmsg+0x140/0x140 [ 99.006739] SyS_sendmsg+0xd/0x20 [ 99.010195] do_syscall_64+0x1c7/0x5b0 [ 99.014054] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.019582] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 99.024747] RIP: 0033:0x45b399 [ 99.027931] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 99.035611] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 99.042854] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 99.050105] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 99.057359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 99.064603] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 99.075125] batman_adv: batadv0: Adding interface: veth0_to_batadv [ 99.081565] batman_adv: batadv0: The MTU of interface veth0_to_batadv 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. [ 99.106951] batman_adv: batadv0: Interface activated: veth0_to_batadv [ 99.114826] FAULT_INJECTION: forcing a failure. [ 99.114826] name failslab, interval 1, probability 0, space 0, times 0 [ 99.130965] CPU: 0 PID: 8129 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 99.138773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.148117] Call Trace: [ 99.150692] dump_stack+0xf7/0x13b [ 99.154221] should_fail.cold.3+0x105/0x14b [ 99.158525] should_failslab+0xba/0xf0 [ 99.162429] kmem_cache_alloc_node_trace+0x279/0x780 [ 99.167513] __kmalloc_node_track_caller+0x3c/0x70 [ 99.172429] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 99.177198] __alloc_skb+0xc1/0x500 [ 99.180800] ? skb_trim+0x160/0x160 [ 99.184454] ? if_nlmsg_size+0x2d9/0x6f0 [ 99.188514] rtmsg_ifinfo_build_skb+0x68/0x120 [ 99.193129] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 99.198084] rtmsg_ifinfo+0x4a/0x70 [ 99.201691] bond_upper_dev_unlink.isra.45+0x95/0xc0 [ 99.206772] __bond_release_one+0x2c2/0x1370 [ 99.211180] ? notifier_call_chain+0xd6/0x150 [ 99.215658] ? bond_enslave+0x4a80/0x4a80 [ 99.219786] ? raw_notifier_call_chain+0x11/0x20 [ 99.224715] ? call_netdevice_notifiers_info+0x4b/0x60 [ 99.229974] ? __dev_notify_flags+0x1c1/0x210 [ 99.234443] ? dev_change_name+0x8f0/0x8f0 [ 99.238672] ? __dev_change_flags+0x151/0x550 [ 99.243162] ? dev_set_allmulti+0x10/0x10 [ 99.247286] ? trace_hardirqs_off+0x10/0x10 [ 99.251682] ? lock_downgrade+0x7f0/0x7f0 [ 99.255830] ? trace_hardirqs_off+0x10/0x10 [ 99.260232] bond_release+0xd/0x10 [ 99.263759] do_set_master+0xb6/0x1f0 [ 99.267540] do_setlink+0x9dd/0x2c50 [ 99.271241] ? rtnl_register+0x20/0x20 [ 99.275138] ? __lock_acquire+0x6a4/0x4500 [ 99.279357] ? load_balance+0xb38/0x2190 [ 99.283435] ? lock_downgrade+0x7f0/0x7f0 [ 99.287572] ? lock_pin_lock+0x340/0x340 [ 99.291616] ? __lock_acquire+0x6a4/0x4500 [ 99.295823] ? trace_hardirqs_off+0x10/0x10 [ 99.300117] ? __lock_is_held+0xb5/0x140 [ 99.304152] ? trace_hardirqs_off+0x10/0x10 [ 99.308467] rtnl_newlink+0xe0c/0x1390 [ 99.312329] ? memset+0x31/0x40 [ 99.315580] ? rtnl_newlink+0x6d0/0x1390 [ 99.319618] ? rtnl_link_unregister+0x270/0x270 [ 99.324364] ? finish_task_switch+0x178/0x650 [ 99.328837] ? finish_task_switch+0x14d/0x650 [ 99.333333] ? find_held_lock+0x36/0x1d0 [ 99.337381] ? __mutex_lock+0x8b7/0x14c0 [ 99.341416] ? lock_downgrade+0x7f0/0x7f0 [ 99.345570] ? do_raw_spin_unlock+0x16a/0x250 [ 99.350143] rtnetlink_rcv_msg+0x34c/0x9e0 [ 99.354354] ? rtnl_bridge_getlink+0x760/0x760 [ 99.358909] ? find_held_lock+0x36/0x1d0 [ 99.362982] netlink_rcv_skb+0x133/0x370 [ 99.367031] ? rtnl_bridge_getlink+0x760/0x760 [ 99.371689] ? netlink_ack+0xa00/0xa00 [ 99.375567] ? netlink_deliver_tap+0x8e/0x920 [ 99.380049] rtnetlink_rcv+0x10/0x20 [ 99.383738] netlink_unicast+0x40b/0x600 [ 99.387773] ? netlink_attachskb+0x6d0/0x6d0 [ 99.392243] netlink_sendmsg+0x730/0xbd0 [ 99.396279] ? netlink_unicast+0x600/0x600 [ 99.400489] ? selinux_socket_sendmsg+0x31/0x40 [ 99.405132] ? security_socket_sendmsg+0x6a/0xa0 [ 99.409865] ? netlink_unicast+0x600/0x600 [ 99.414076] sock_sendmsg+0xb5/0xf0 [ 99.417677] ___sys_sendmsg+0x625/0x920 [ 99.421647] ? trace_hardirqs_off+0x10/0x10 [ 99.425957] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 99.430687] ? find_held_lock+0x36/0x1d0 [ 99.434724] ? lock_downgrade+0x7f0/0x7f0 [ 99.438852] ? __fget+0x1ca/0x2f0 [ 99.442281] ? __fget_light+0x166/0x200 [ 99.446228] ? __fdget+0xe/0x10 [ 99.449494] ? sockfd_lookup_light+0x1c/0x150 [ 99.453972] __sys_sendmsg+0xc1/0x140 [ 99.457752] ? SyS_shutdown+0x180/0x180 [ 99.461796] ? __sb_end_write+0xa4/0xd0 [ 99.465748] ? mutex_unlock+0xd/0x10 [ 99.469440] ? do_syscall_64+0x4c/0x5b0 [ 99.473388] ? __sys_sendmsg+0x140/0x140 [ 99.477419] SyS_sendmsg+0xd/0x20 [ 99.480861] do_syscall_64+0x1c7/0x5b0 [ 99.484721] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.489578] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 99.494802] RIP: 0033:0x45b399 [ 99.497992] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 99.505681] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 99.512925] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 99.520168] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 99.527410] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 99.534658] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 99.545907] bond0: Releasing backup interface bond_slave_1 [ 99.581234] batman_adv: batadv0: Adding interface: bond_slave_1 [ 99.587378] batman_adv: batadv0: The MTU of interface bond_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. [ 99.613667] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 99.624283] FAULT_INJECTION: forcing a failure. [ 99.624283] name failslab, interval 1, probability 0, space 0, times 0 [ 99.644105] CPU: 0 PID: 8131 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 99.651912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.661260] Call Trace: [ 99.663861] dump_stack+0xf7/0x13b [ 99.667394] should_fail.cold.3+0x105/0x14b [ 99.671711] should_failslab+0xba/0xf0 [ 99.675572] kmem_cache_alloc_node_trace+0x279/0x780 [ 99.680659] __kmalloc_node_track_caller+0x3c/0x70 [ 99.685569] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 99.690298] __alloc_skb+0xc1/0x500 [ 99.693983] ? skb_trim+0x160/0x160 [ 99.697581] ? if_nlmsg_size+0x2d9/0x6f0 [ 99.701624] rtmsg_ifinfo_build_skb+0x68/0x120 [ 99.706185] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 99.711015] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 99.715915] rtnetlink_event+0xc2/0x110 [ 99.719868] notifier_call_chain+0xd6/0x150 [ 99.724169] raw_notifier_call_chain+0x11/0x20 [ 99.728721] call_netdevice_notifiers_info+0x4b/0x60 [ 99.733829] __netdev_upper_dev_link+0x18e/0x1f0 [ 99.738568] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 99.743302] netdev_master_upper_dev_link+0x14/0x20 [ 99.748380] batadv_hardif_enable_interface+0x1f4/0xa10 [ 99.753727] batadv_softif_slave_add+0x7f/0xd0 [ 99.758281] do_set_master+0x163/0x1f0 [ 99.762147] do_setlink+0x9dd/0x2c50 [ 99.765840] ? find_held_lock+0x36/0x1d0 [ 99.769874] ? rtnl_register+0x20/0x20 [ 99.773731] ? load_balance+0xb38/0x2190 [ 99.777776] ? lock_downgrade+0x7f0/0x7f0 [ 99.781899] ? lock_pin_lock+0x340/0x340 [ 99.785955] ? __lock_acquire+0x6a4/0x4500 [ 99.790162] ? trace_hardirqs_off+0x10/0x10 [ 99.794454] ? __lock_is_held+0xb5/0x140 [ 99.798489] ? trace_hardirqs_off+0x10/0x10 [ 99.802789] rtnl_newlink+0xe0c/0x1390 [ 99.806654] ? rtnl_link_unregister+0x270/0x270 [ 99.811293] ? finish_task_switch+0x178/0x650 [ 99.815759] ? finish_task_switch+0x14d/0x650 [ 99.820238] ? find_held_lock+0x36/0x1d0 [ 99.824294] ? __mutex_lock+0x8b7/0x14c0 [ 99.828327] ? lock_downgrade+0x7f0/0x7f0 [ 99.832450] ? do_raw_spin_unlock+0x16a/0x250 [ 99.836931] rtnetlink_rcv_msg+0x34c/0x9e0 [ 99.841148] ? rtnl_bridge_getlink+0x760/0x760 [ 99.845709] ? find_held_lock+0x36/0x1d0 [ 99.849753] netlink_rcv_skb+0x133/0x370 [ 99.853805] ? rtnl_bridge_getlink+0x760/0x760 [ 99.858366] ? netlink_ack+0xa00/0xa00 [ 99.862236] ? netlink_deliver_tap+0x8e/0x920 [ 99.866709] rtnetlink_rcv+0x10/0x20 [ 99.870396] netlink_unicast+0x40b/0x600 [ 99.874778] ? netlink_attachskb+0x6d0/0x6d0 [ 99.879228] netlink_sendmsg+0x730/0xbd0 [ 99.883264] ? netlink_unicast+0x600/0x600 [ 99.887474] ? selinux_socket_sendmsg+0x31/0x40 [ 99.892123] ? security_socket_sendmsg+0x6a/0xa0 [ 99.896849] ? netlink_unicast+0x600/0x600 [ 99.901061] sock_sendmsg+0xb5/0xf0 [ 99.904713] ___sys_sendmsg+0x625/0x920 [ 99.908660] ? trace_hardirqs_off+0x10/0x10 [ 99.913003] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 99.917730] ? find_held_lock+0x36/0x1d0 [ 99.921776] ? lock_downgrade+0x7f0/0x7f0 [ 99.925908] ? __fget+0x1ca/0x2f0 [ 99.929340] ? __fget_light+0x166/0x200 [ 99.933357] ? __fdget+0xe/0x10 [ 99.936638] ? sockfd_lookup_light+0x1c/0x150 [ 99.941115] __sys_sendmsg+0xc1/0x140 [ 99.944913] ? SyS_shutdown+0x180/0x180 [ 99.948860] ? __sb_end_write+0xa4/0xd0 [ 99.952820] ? mutex_unlock+0xd/0x10 [ 99.956507] ? do_syscall_64+0x4c/0x5b0 [ 99.960478] ? __sys_sendmsg+0x140/0x140 [ 99.964533] SyS_sendmsg+0xd/0x20 [ 99.967990] do_syscall_64+0x1c7/0x5b0 [ 99.971946] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 99.976772] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 99.981938] RIP: 0033:0x45b399 [ 99.985108] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 99.992786] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 100.000033] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 100.007294] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 100.014536] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 100.021783] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 100.031897] batman_adv: batadv0: Adding interface: veth0_to_bond [ 100.038307] batman_adv: batadv0: The MTU of interface veth0_to_bond 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. [ 100.063820] batman_adv: batadv0: Interface activated: veth0_to_bond [ 100.071760] FAULT_INJECTION: forcing a failure. [ 100.071760] name failslab, interval 1, probability 0, space 0, times 0 [ 100.088542] CPU: 0 PID: 8135 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 100.096345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.105689] Call Trace: [ 100.108271] dump_stack+0xf7/0x13b [ 100.111808] should_fail.cold.3+0x105/0x14b [ 100.116117] should_failslab+0xba/0xf0 [ 100.119982] kmem_cache_alloc_node_trace+0x279/0x780 [ 100.125065] __kmalloc_node_track_caller+0x3c/0x70 [ 100.129980] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 100.134720] __alloc_skb+0xc1/0x500 [ 100.138320] ? skb_trim+0x160/0x160 [ 100.142012] ? if_nlmsg_size+0x2d9/0x6f0 [ 100.146052] rtmsg_ifinfo_build_skb+0x68/0x120 [ 100.150610] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 100.155432] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 100.160342] rtnetlink_event+0xc2/0x110 [ 100.164300] notifier_call_chain+0xd6/0x150 [ 100.168601] raw_notifier_call_chain+0x11/0x20 [ 100.173164] call_netdevice_notifiers_info+0x4b/0x60 [ 100.178249] __netdev_upper_dev_link+0x18e/0x1f0 [ 100.182992] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 100.187732] netdev_master_upper_dev_link+0x14/0x20 [ 100.192724] batadv_hardif_enable_interface+0x1f4/0xa10 [ 100.198064] batadv_softif_slave_add+0x7f/0xd0 [ 100.202623] do_set_master+0x163/0x1f0 [ 100.206487] do_setlink+0x9dd/0x2c50 [ 100.210190] ? find_held_lock+0x36/0x1d0 [ 100.214238] ? rtnl_register+0x20/0x20 [ 100.218253] ? load_balance+0xb38/0x2190 [ 100.222298] ? lock_downgrade+0x7f0/0x7f0 [ 100.226512] ? lock_pin_lock+0x340/0x340 [ 100.230567] ? mark_held_locks+0xc7/0x130 [ 100.234718] ? retint_kernel+0x2d/0x2d [ 100.238597] ? trace_hardirqs_on_caller+0x40c/0x580 [ 100.243591] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 100.248327] ? retint_kernel+0x2d/0x2d [ 100.252213] rtnl_newlink+0xe0c/0x1390 [ 100.256081] ? rtnl_link_unregister+0x270/0x270 [ 100.260736] ? finish_task_switch+0x178/0x650 [ 100.265202] ? finish_task_switch+0x14d/0x650 [ 100.269687] ? find_held_lock+0x36/0x1d0 [ 100.273738] ? __mutex_lock+0x8b7/0x14c0 [ 100.277789] ? lock_downgrade+0x7f0/0x7f0 [ 100.281937] ? do_raw_spin_unlock+0x16a/0x250 [ 100.286421] rtnetlink_rcv_msg+0x34c/0x9e0 [ 100.290728] ? rtnl_bridge_getlink+0x760/0x760 [ 100.295319] ? find_held_lock+0x36/0x1d0 [ 100.299375] netlink_rcv_skb+0x133/0x370 [ 100.303425] ? rtnl_bridge_getlink+0x760/0x760 [ 100.307995] ? netlink_ack+0xa00/0xa00 [ 100.311893] ? netlink_deliver_tap+0x8e/0x920 [ 100.316392] rtnetlink_rcv+0x10/0x20 [ 100.320096] netlink_unicast+0x40b/0x600 [ 100.324133] ? netlink_attachskb+0x6d0/0x6d0 [ 100.328520] netlink_sendmsg+0x730/0xbd0 [ 100.332563] ? netlink_unicast+0x600/0x600 [ 100.336779] ? selinux_socket_sendmsg+0x31/0x40 [ 100.341437] ? security_socket_sendmsg+0x6a/0xa0 [ 100.346176] ? netlink_unicast+0x600/0x600 [ 100.350398] sock_sendmsg+0xb5/0xf0 [ 100.354009] ___sys_sendmsg+0x625/0x920 [ 100.357966] ? trace_hardirqs_off+0x10/0x10 [ 100.362266] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 100.367117] ? find_held_lock+0x36/0x1d0 [ 100.371168] ? lock_downgrade+0x7f0/0x7f0 [ 100.375313] ? __fget+0x1ca/0x2f0 [ 100.378775] ? __fget_light+0x166/0x200 [ 100.382746] ? __fdget+0xe/0x10 [ 100.386001] ? sockfd_lookup_light+0x1c/0x150 [ 100.390472] __sys_sendmsg+0xc1/0x140 [ 100.394259] ? SyS_shutdown+0x180/0x180 [ 100.398213] ? __sb_end_write+0xa4/0xd0 [ 100.402172] ? mutex_unlock+0xd/0x10 [ 100.405873] ? do_syscall_64+0x4c/0x5b0 [ 100.409821] ? __sys_sendmsg+0x140/0x140 [ 100.413865] SyS_sendmsg+0xd/0x20 [ 100.417305] do_syscall_64+0x1c7/0x5b0 [ 100.421168] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 100.425987] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 100.431155] RIP: 0033:0x45b399 [ 100.434323] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 100.442003] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 100.449261] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 100.456506] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 100.463764] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 100.471009] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 100.481169] batman_adv: batadv0: Adding interface: veth1_to_bond [ 100.487323] batman_adv: batadv0: The MTU of interface veth1_to_bond 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. [ 100.512667] batman_adv: batadv0: Interface activated: veth1_to_bond [ 100.520143] FAULT_INJECTION: forcing a failure. [ 100.520143] name failslab, interval 1, probability 0, space 0, times 0 [ 100.533126] CPU: 1 PID: 8139 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 100.540924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.550273] Call Trace: [ 100.552857] dump_stack+0xf7/0x13b [ 100.556399] should_fail.cold.3+0x105/0x14b [ 100.560858] should_failslab+0xba/0xf0 [ 100.566120] kmem_cache_alloc_node_trace+0x279/0x780 [ 100.571205] __kmalloc_node_track_caller+0x3c/0x70 [ 100.576113] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 100.580854] __alloc_skb+0xc1/0x500 [ 100.584459] ? skb_trim+0x160/0x160 [ 100.588063] ? if_nlmsg_size+0x2d9/0x6f0 [ 100.592105] rtmsg_ifinfo_build_skb+0x68/0x120 [ 100.596672] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 100.601491] rtmsg_ifinfo+0x4a/0x70 [ 100.605101] bond_upper_dev_unlink.isra.45+0x95/0xc0 [ 100.610179] __bond_release_one+0x2c2/0x1370 [ 100.614560] ? notifier_call_chain+0xd6/0x150 [ 100.619030] ? bond_enslave+0x4a80/0x4a80 [ 100.623151] ? raw_notifier_call_chain+0x11/0x20 [ 100.627880] ? call_netdevice_notifiers_info+0x4b/0x60 [ 100.633130] ? __dev_notify_flags+0x1c1/0x210 [ 100.637624] ? dev_change_name+0x8f0/0x8f0 [ 100.642045] ? __dev_change_flags+0x151/0x550 [ 100.646527] ? dev_set_allmulti+0x10/0x10 [ 100.650650] ? trace_hardirqs_off+0x10/0x10 [ 100.654961] ? lock_downgrade+0x7f0/0x7f0 [ 100.659083] ? trace_hardirqs_off+0x10/0x10 [ 100.663473] bond_release+0xd/0x10 [ 100.667005] do_set_master+0xb6/0x1f0 [ 100.670781] do_setlink+0x9dd/0x2c50 [ 100.674473] ? rtnl_register+0x20/0x20 [ 100.678337] ? __lock_acquire+0x6a4/0x4500 [ 100.682545] ? load_balance+0xb38/0x2190 [ 100.686579] ? lock_downgrade+0x7f0/0x7f0 [ 100.690711] ? lock_pin_lock+0x340/0x340 [ 100.694750] ? mark_held_locks+0xc7/0x130 [ 100.698871] ? retint_kernel+0x2d/0x2d [ 100.702729] ? trace_hardirqs_on_caller+0x40c/0x580 [ 100.707736] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 100.712469] ? retint_kernel+0x2d/0x2d [ 100.716422] rtnl_newlink+0xe0c/0x1390 [ 100.720284] ? memset+0x31/0x40 [ 100.723537] ? rtnl_newlink+0x6d0/0x1390 [ 100.727574] ? rtnl_link_unregister+0x270/0x270 [ 100.732213] ? finish_task_switch+0x178/0x650 [ 100.736678] ? finish_task_switch+0x14d/0x650 [ 100.741145] ? find_held_lock+0x36/0x1d0 [ 100.745201] ? __mutex_lock+0x8b7/0x14c0 [ 100.749248] ? lock_downgrade+0x7f0/0x7f0 [ 100.753384] ? do_raw_spin_unlock+0x16a/0x250 [ 100.757923] rtnetlink_rcv_msg+0x34c/0x9e0 [ 100.762142] ? rtnl_bridge_getlink+0x760/0x760 [ 100.766701] ? find_held_lock+0x36/0x1d0 [ 100.770746] netlink_rcv_skb+0x133/0x370 [ 100.774781] ? rtnl_bridge_getlink+0x760/0x760 [ 100.779335] ? netlink_ack+0xa00/0xa00 [ 100.783202] ? netlink_deliver_tap+0x8e/0x920 [ 100.787679] rtnetlink_rcv+0x10/0x20 [ 100.791380] netlink_unicast+0x40b/0x600 [ 100.795416] ? netlink_attachskb+0x6d0/0x6d0 [ 100.799822] netlink_sendmsg+0x730/0xbd0 [ 100.803858] ? netlink_unicast+0x600/0x600 [ 100.808066] ? selinux_socket_sendmsg+0x31/0x40 [ 100.812709] ? security_socket_sendmsg+0x6a/0xa0 [ 100.817436] ? netlink_unicast+0x600/0x600 [ 100.821651] sock_sendmsg+0xb5/0xf0 [ 100.825470] ___sys_sendmsg+0x625/0x920 [ 100.829424] ? trace_hardirqs_off+0x10/0x10 [ 100.833722] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 100.838474] ? find_held_lock+0x36/0x1d0 [ 100.842783] ? lock_downgrade+0x7f0/0x7f0 [ 100.846915] ? __fget+0x1ca/0x2f0 [ 100.850345] ? __fget_light+0x166/0x200 [ 100.854291] ? __fdget+0xe/0x10 [ 100.857558] ? sockfd_lookup_light+0x1c/0x150 [ 100.862028] __sys_sendmsg+0xc1/0x140 [ 100.865813] ? SyS_shutdown+0x180/0x180 [ 100.869764] ? __sb_end_write+0xa4/0xd0 [ 100.873712] ? mutex_unlock+0xd/0x10 [ 100.877405] ? do_syscall_64+0x4c/0x5b0 [ 100.881351] ? __sys_sendmsg+0x140/0x140 [ 100.885488] SyS_sendmsg+0xd/0x20 [ 100.888929] do_syscall_64+0x1c7/0x5b0 [ 100.892803] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 100.897621] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 100.902786] RIP: 0033:0x45b399 [ 100.905947] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 100.913629] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 100.920875] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 100.928126] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 100.935369] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 100.942611] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 100.959153] bond0: Releasing backup interface bond_slave_0 [ 100.992529] batman_adv: batadv0: Adding interface: bond_slave_0 [ 100.998623] batman_adv: batadv0: The MTU of interface bond_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. [ 101.024098] batman_adv: batadv0: Not using interface bond_slave_0 (retrying later): interface not active [ 101.034761] FAULT_INJECTION: forcing a failure. [ 101.034761] name failslab, interval 1, probability 0, space 0, times 0 [ 101.050080] CPU: 1 PID: 8143 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 101.057970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.067319] Call Trace: [ 101.069906] dump_stack+0xf7/0x13b [ 101.073524] should_fail.cold.3+0x105/0x14b [ 101.077845] should_failslab+0xba/0xf0 [ 101.081726] kmem_cache_alloc_node_trace+0x279/0x780 [ 101.086830] __kmalloc_node_track_caller+0x3c/0x70 [ 101.091740] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 101.096480] __alloc_skb+0xc1/0x500 [ 101.100432] ? skb_trim+0x160/0x160 [ 101.104064] ? if_nlmsg_size+0x2d9/0x6f0 [ 101.108116] rtmsg_ifinfo_build_skb+0x68/0x120 [ 101.112682] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 101.117506] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 101.122417] rtnetlink_event+0xc2/0x110 [ 101.126370] notifier_call_chain+0xd6/0x150 [ 101.130669] raw_notifier_call_chain+0x11/0x20 [ 101.135227] call_netdevice_notifiers_info+0x4b/0x60 [ 101.140302] __netdev_upper_dev_link+0x18e/0x1f0 [ 101.145032] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 101.149763] netdev_master_upper_dev_link+0x14/0x20 [ 101.155205] batadv_hardif_enable_interface+0x1f4/0xa10 [ 101.160562] batadv_softif_slave_add+0x7f/0xd0 [ 101.165295] do_set_master+0x163/0x1f0 [ 101.169156] do_setlink+0x9dd/0x2c50 [ 101.172951] ? find_held_lock+0x36/0x1d0 [ 101.176987] ? rtnl_register+0x20/0x20 [ 101.180846] ? load_balance+0xb38/0x2190 [ 101.184898] ? lock_downgrade+0x7f0/0x7f0 [ 101.189023] ? lock_pin_lock+0x340/0x340 [ 101.193068] ? __lock_acquire+0x6a4/0x4500 [ 101.197278] ? trace_hardirqs_off+0x10/0x10 [ 101.201571] ? __lock_is_held+0xb5/0x140 [ 101.205610] ? trace_hardirqs_off+0x10/0x10 [ 101.209918] rtnl_newlink+0xe0c/0x1390 [ 101.213788] ? rtnl_link_unregister+0x270/0x270 [ 101.218430] ? finish_task_switch+0x178/0x650 [ 101.222894] ? finish_task_switch+0x14d/0x650 [ 101.227369] ? find_held_lock+0x36/0x1d0 [ 101.231408] ? __mutex_lock+0x8b7/0x14c0 [ 101.235441] ? lock_downgrade+0x7f0/0x7f0 [ 101.239563] ? do_raw_spin_unlock+0x16a/0x250 [ 101.244046] rtnetlink_rcv_msg+0x34c/0x9e0 [ 101.248255] ? rtnl_bridge_getlink+0x760/0x760 [ 101.252885] ? find_held_lock+0x36/0x1d0 [ 101.257007] netlink_rcv_skb+0x133/0x370 [ 101.261041] ? rtnl_bridge_getlink+0x760/0x760 [ 101.265600] ? netlink_ack+0xa00/0xa00 [ 101.269498] ? netlink_deliver_tap+0x8e/0x920 [ 101.273966] rtnetlink_rcv+0x10/0x20 [ 101.277652] netlink_unicast+0x40b/0x600 [ 101.281702] ? netlink_attachskb+0x6d0/0x6d0 [ 101.286088] netlink_sendmsg+0x730/0xbd0 [ 101.290211] ? netlink_unicast+0x600/0x600 [ 101.294420] ? selinux_socket_sendmsg+0x31/0x40 [ 101.299064] ? security_socket_sendmsg+0x6a/0xa0 [ 101.303808] ? netlink_unicast+0x600/0x600 [ 101.308033] sock_sendmsg+0xb5/0xf0 [ 101.311660] ___sys_sendmsg+0x625/0x920 [ 101.315624] ? trace_hardirqs_off+0x10/0x10 [ 101.319925] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 101.324658] ? find_held_lock+0x36/0x1d0 [ 101.328712] ? lock_downgrade+0x7f0/0x7f0 [ 101.332932] ? __fget+0x1ca/0x2f0 [ 101.336360] ? __fget_light+0x166/0x200 [ 101.340307] ? __fdget+0xe/0x10 [ 101.343562] ? sockfd_lookup_light+0x1c/0x150 [ 101.348048] __sys_sendmsg+0xc1/0x140 [ 101.351852] ? SyS_shutdown+0x180/0x180 [ 101.355864] ? __sb_end_write+0xa4/0xd0 [ 101.359875] ? mutex_unlock+0xd/0x10 [ 101.363569] ? do_syscall_64+0x4c/0x5b0 [ 101.367521] ? __sys_sendmsg+0x140/0x140 [ 101.371559] SyS_sendmsg+0xd/0x20 [ 101.375006] do_syscall_64+0x1c7/0x5b0 [ 101.378926] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 101.383856] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 101.389018] RIP: 0033:0x45b399 [ 101.392186] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 101.399871] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 101.407122] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 101.414379] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 101.421626] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 101.430226] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 101.439132] batman_adv: batadv0: Adding interface: veth1_to_bond [ 101.445410] batman_adv: batadv0: The MTU of interface veth1_to_bond 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. [ 101.470656] batman_adv: batadv0: Interface activated: veth1_to_bond [ 101.477894] FAULT_INJECTION: forcing a failure. [ 101.477894] name failslab, interval 1, probability 0, space 0, times 0 [ 101.490676] CPU: 1 PID: 8148 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 101.498620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.507968] Call Trace: [ 101.510556] dump_stack+0xf7/0x13b [ 101.514077] should_fail.cold.3+0x105/0x14b [ 101.518376] should_failslab+0xba/0xf0 [ 101.522240] kmem_cache_alloc_node_trace+0x279/0x780 [ 101.527320] __kmalloc_node_track_caller+0x3c/0x70 [ 101.532235] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 101.536973] __alloc_skb+0xc1/0x500 [ 101.540584] ? skb_trim+0x160/0x160 [ 101.544188] ? if_nlmsg_size+0x2d9/0x6f0 [ 101.548234] rtmsg_ifinfo_build_skb+0x68/0x120 [ 101.552857] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 101.557707] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 101.562620] rtnetlink_event+0xc2/0x110 [ 101.566605] notifier_call_chain+0xd6/0x150 [ 101.571010] raw_notifier_call_chain+0x11/0x20 [ 101.575567] call_netdevice_notifiers_info+0x4b/0x60 [ 101.580652] __netdev_upper_dev_link+0x18e/0x1f0 [ 101.585387] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 101.596383] netdev_master_upper_dev_link+0x14/0x20 [ 101.601391] batadv_hardif_enable_interface+0x1f4/0xa10 [ 101.606732] batadv_softif_slave_add+0x7f/0xd0 [ 101.611288] do_set_master+0x163/0x1f0 [ 101.615157] do_setlink+0x9dd/0x2c50 [ 101.618857] ? __lock_acquire+0x6a4/0x4500 [ 101.623086] ? rtnl_register+0x20/0x20 [ 101.626968] ? trace_hardirqs_on+0x10/0x10 [ 101.631281] ? trace_hardirqs_off+0x10/0x10 [ 101.635578] ? __lock_acquire+0x6a4/0x4500 [ 101.639787] ? trace_hardirqs_off+0x10/0x10 [ 101.644082] ? trace_hardirqs_off+0x10/0x10 [ 101.648382] ? __lock_is_held+0xb5/0x140 [ 101.652418] ? trace_hardirqs_off+0x10/0x10 [ 101.656716] rtnl_newlink+0xe0c/0x1390 [ 101.660586] ? rtnl_link_unregister+0x270/0x270 [ 101.665257] ? finish_task_switch+0x178/0x650 [ 101.669754] ? finish_task_switch+0x14d/0x650 [ 101.674236] ? find_held_lock+0x36/0x1d0 [ 101.678285] ? __mutex_lock+0x8b7/0x14c0 [ 101.682317] ? lock_downgrade+0x7f0/0x7f0 [ 101.686447] ? do_raw_spin_unlock+0x16a/0x250 [ 101.690940] rtnetlink_rcv_msg+0x34c/0x9e0 [ 101.695151] ? rtnl_bridge_getlink+0x760/0x760 [ 101.699725] ? find_held_lock+0x36/0x1d0 [ 101.703766] netlink_rcv_skb+0x133/0x370 [ 101.707888] ? rtnl_bridge_getlink+0x760/0x760 [ 101.712440] ? netlink_ack+0xa00/0xa00 [ 101.716303] ? netlink_deliver_tap+0x8e/0x920 [ 101.720771] rtnetlink_rcv+0x10/0x20 [ 101.724456] netlink_unicast+0x40b/0x600 [ 101.728490] ? netlink_attachskb+0x6d0/0x6d0 [ 101.732872] netlink_sendmsg+0x730/0xbd0 [ 101.736906] ? netlink_unicast+0x600/0x600 [ 101.741133] ? selinux_socket_sendmsg+0x31/0x40 [ 101.745777] ? security_socket_sendmsg+0x6a/0xa0 [ 101.750593] ? netlink_unicast+0x600/0x600 [ 101.754802] sock_sendmsg+0xb5/0xf0 [ 101.758408] ___sys_sendmsg+0x625/0x920 [ 101.762375] ? trace_hardirqs_off+0x10/0x10 [ 101.766672] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 101.771400] ? find_held_lock+0x36/0x1d0 [ 101.775446] ? lock_downgrade+0x7f0/0x7f0 [ 101.779584] ? __fget+0x1ca/0x2f0 [ 101.783017] ? __fget_light+0x166/0x200 [ 101.786969] ? __fdget+0xe/0x10 [ 101.790220] ? sockfd_lookup_light+0x1c/0x150 [ 101.794687] __sys_sendmsg+0xc1/0x140 [ 101.798461] ? SyS_shutdown+0x180/0x180 [ 101.802412] ? __sb_end_write+0xa4/0xd0 [ 101.806362] ? mutex_unlock+0xd/0x10 [ 101.810052] ? do_syscall_64+0x4c/0x5b0 [ 101.813997] ? __sys_sendmsg+0x140/0x140 [ 101.818030] SyS_sendmsg+0xd/0x20 [ 101.821458] do_syscall_64+0x1c7/0x5b0 [ 101.825579] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 101.830409] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 101.835582] RIP: 0033:0x45b399 [ 101.838750] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 101.846434] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 101.853677] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 101.860935] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 101.868198] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 101.875442] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 101.884388] batman_adv: batadv0: Adding interface: veth1_to_batadv [ 101.891391] batman_adv: batadv0: The MTU of interface veth1_to_batadv 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. [ 101.927095] batman_adv: batadv0: Interface activated: veth1_to_batadv [ 101.943187] FAULT_INJECTION: forcing a failure. [ 101.943187] name failslab, interval 1, probability 0, space 0, times 0 [ 101.954498] CPU: 0 PID: 8151 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 101.962284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.971640] Call Trace: [ 101.974222] dump_stack+0xf7/0x13b [ 101.977751] should_fail.cold.3+0x105/0x14b [ 101.982062] should_failslab+0xba/0xf0 [ 101.985986] kmem_cache_alloc_node+0x56/0x790 [ 101.990481] __alloc_skb+0x92/0x500 [ 101.994096] ? skb_trim+0x160/0x160 [ 101.997712] ? call_fib6_notifiers+0x3c/0x60 [ 102.002128] inet6_rt_notify+0xe0/0x290 [ 102.006096] fib6_del+0x89d/0xd80 [ 102.011275] fib6_clean_node+0x1d8/0x3f0 [ 102.015312] ? fib6_del+0xd80/0xd80 [ 102.018923] ? trace_hardirqs_on_caller+0x19e/0x580 [ 102.023919] ? fib6_walker_link+0xe2/0x120 [ 102.028197] fib6_walk_continue+0x1bb/0x920 [ 102.032496] ? _raw_write_unlock_bh+0x30/0x40 [ 102.036968] fib6_walk+0x90/0xe0 [ 102.040317] fib6_clean_tree+0x8f/0xb0 [ 102.044190] ? fib6_walk+0xe0/0xe0 [ 102.047706] ? fib6_del+0xd80/0xd80 [ 102.051319] ? fib6_clean_tree+0xb0/0xb0 [ 102.055361] ? fib6_remove_prefsrc+0x250/0x250 [ 102.060027] ? _raw_write_lock_bh+0x39/0x40 [ 102.064339] ? __fib6_clean_all+0xc5/0x1d0 [ 102.068558] __fib6_clean_all+0xde/0x1d0 [ 102.072626] ? fib6_remove_prefsrc+0x250/0x250 [ 102.077187] fib6_clean_all+0xe/0x10 [ 102.080887] rt6_ifdown+0x87/0x560 [ 102.084413] ? __lock_acquire+0x6a4/0x4500 [ 102.088626] ? rt6_clean_tohost+0x20/0x20 [ 102.092754] addrconf_ifdown+0xbb/0x1320 [ 102.096797] ? trace_hardirqs_off+0x10/0x10 [ 102.101109] ? add_addr+0x150/0x150 [ 102.104719] addrconf_notify+0x555/0x1b10 [ 102.108861] ? lock_downgrade+0x7f0/0x7f0 [ 102.112997] ? inet6_ifinfo_notify+0x100/0x100 [ 102.117554] ? nfqnl_rcv_dev_event+0x227/0x3b0 [ 102.122120] notifier_call_chain+0xd6/0x150 [ 102.126430] raw_notifier_call_chain+0x11/0x20 [ 102.130995] call_netdevice_notifiers_info+0x4b/0x60 [ 102.136100] dev_close_many+0x29b/0x610 [ 102.140057] ? list_netdevice+0x4b0/0x4b0 [ 102.144190] ? mark_held_locks+0xc7/0x130 [ 102.148311] ? dev_mc_unsync+0x165/0x1a5 [ 102.152353] dev_close.part.90+0xe5/0x190 [ 102.156484] ? dev_close_many+0x610/0x610 [ 102.160615] ? dev_mc_unsync+0x165/0x1a5 [ 102.164661] ? __local_bh_enable_ip+0x9c/0x180 [ 102.169218] ? _raw_spin_unlock_bh+0x30/0x40 [ 102.173625] dev_close+0x40/0x50 [ 102.176965] team_port_del+0x2c0/0x770 [ 102.180833] team_del_slave+0x34/0x70 [ 102.184616] do_set_master+0xb6/0x1f0 [ 102.188405] do_setlink+0x9dd/0x2c50 [ 102.192111] ? find_held_lock+0x36/0x1d0 [ 102.196148] ? rtnl_register+0x20/0x20 [ 102.200015] ? load_balance+0xb38/0x2190 [ 102.204057] ? lock_downgrade+0x7f0/0x7f0 [ 102.208176] ? lock_pin_lock+0x340/0x340 [ 102.212229] ? __lock_acquire+0x6a4/0x4500 [ 102.216452] ? trace_hardirqs_off+0x10/0x10 [ 102.220756] ? __lock_is_held+0xb5/0x140 [ 102.224802] ? trace_hardirqs_off+0x10/0x10 [ 102.229103] rtnl_newlink+0xe0c/0x1390 [ 102.232971] ? rtnl_newlink+0x6d0/0x1390 [ 102.237010] ? rtnl_link_unregister+0x270/0x270 [ 102.241659] ? finish_task_switch+0x178/0x650 [ 102.246324] ? finish_task_switch+0x14d/0x650 [ 102.250805] ? find_held_lock+0x36/0x1d0 [ 102.254848] ? __mutex_lock+0x8b7/0x14c0 [ 102.258882] ? lock_downgrade+0x7f0/0x7f0 [ 102.263010] ? do_raw_spin_unlock+0x16a/0x250 [ 102.267667] rtnetlink_rcv_msg+0x34c/0x9e0 [ 102.271885] ? rtnl_bridge_getlink+0x760/0x760 [ 102.276460] ? find_held_lock+0x36/0x1d0 [ 102.280519] netlink_rcv_skb+0x133/0x370 [ 102.284581] ? rtnl_bridge_getlink+0x760/0x760 [ 102.289137] ? netlink_ack+0xa00/0xa00 [ 102.293002] ? netlink_deliver_tap+0x8e/0x920 [ 102.297473] rtnetlink_rcv+0x10/0x20 [ 102.301165] netlink_unicast+0x40b/0x600 [ 102.305229] ? netlink_attachskb+0x6d0/0x6d0 [ 102.309628] netlink_sendmsg+0x730/0xbd0 [ 102.313668] ? netlink_unicast+0x600/0x600 [ 102.317897] ? selinux_socket_sendmsg+0x31/0x40 [ 102.322557] ? security_socket_sendmsg+0x6a/0xa0 [ 102.327292] ? netlink_unicast+0x600/0x600 [ 102.331531] sock_sendmsg+0xb5/0xf0 [ 102.335138] ___sys_sendmsg+0x625/0x920 [ 102.339088] ? trace_hardirqs_off+0x10/0x10 [ 102.343400] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 102.348146] ? find_held_lock+0x36/0x1d0 [ 102.352190] ? lock_downgrade+0x7f0/0x7f0 [ 102.356321] ? __fget+0x1ca/0x2f0 [ 102.359824] ? __fget_light+0x166/0x200 [ 102.363830] ? __fdget+0xe/0x10 [ 102.367093] ? sockfd_lookup_light+0x1c/0x150 [ 102.371565] __sys_sendmsg+0xc1/0x140 [ 102.375340] ? SyS_shutdown+0x180/0x180 [ 102.379291] ? __sb_end_write+0xa4/0xd0 [ 102.383248] ? mutex_unlock+0xd/0x10 [ 102.386967] ? do_syscall_64+0x4c/0x5b0 [ 102.390927] ? __sys_sendmsg+0x140/0x140 [ 102.394969] SyS_sendmsg+0xd/0x20 [ 102.398409] do_syscall_64+0x1c7/0x5b0 [ 102.402278] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 102.407109] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 102.412274] RIP: 0033:0x45b399 [ 102.415439] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 102.423123] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 102.430373] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 102.437623] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 102.444868] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 102.452113] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 102.491836] team0: Port device team_slave_0 removed [ 102.497401] batman_adv: batadv0: Adding interface: team_slave_0 [ 102.504941] batman_adv: batadv0: The MTU of interface team_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. [ 102.530719] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 102.541236] FAULT_INJECTION: forcing a failure. [ 102.541236] name failslab, interval 1, probability 0, space 0, times 0 [ 102.541865] syz-executor.2 (8151) used greatest stack depth: 23288 bytes left [ 102.577886] CPU: 1 PID: 8155 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 102.585704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 102.595053] Call Trace: [ 102.597632] dump_stack+0xf7/0x13b [ 102.601169] should_fail.cold.3+0x105/0x14b [ 102.605501] should_failslab+0xba/0xf0 [ 102.609375] kmem_cache_alloc_node_trace+0x279/0x780 [ 102.614584] __kmalloc_node_track_caller+0x3c/0x70 [ 102.619496] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 102.624245] __alloc_skb+0xc1/0x500 [ 102.627850] ? skb_trim+0x160/0x160 [ 102.631454] ? if_nlmsg_size+0x2d9/0x6f0 [ 102.635492] rtmsg_ifinfo_build_skb+0x68/0x120 [ 102.640087] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 102.644911] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 102.649824] rtnetlink_event+0xc2/0x110 [ 102.653777] notifier_call_chain+0xd6/0x150 [ 102.658207] raw_notifier_call_chain+0x11/0x20 [ 102.662880] call_netdevice_notifiers_info+0x4b/0x60 [ 102.667957] __netdev_upper_dev_link+0x18e/0x1f0 [ 102.672686] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 102.677418] netdev_master_upper_dev_link+0x14/0x20 [ 102.682409] batadv_hardif_enable_interface+0x1f4/0xa10 [ 102.687750] batadv_softif_slave_add+0x7f/0xd0 [ 102.692364] do_set_master+0x163/0x1f0 [ 102.696230] do_setlink+0x9dd/0x2c50 [ 102.699922] ? find_held_lock+0x36/0x1d0 [ 102.703963] ? rtnl_register+0x20/0x20 [ 102.707821] ? load_balance+0xb38/0x2190 [ 102.711872] ? lock_downgrade+0x7f0/0x7f0 [ 102.715991] ? lock_pin_lock+0x340/0x340 [ 102.720032] ? __lock_acquire+0x6a4/0x4500 [ 102.724363] ? trace_hardirqs_off+0x10/0x10 [ 102.728739] ? __lock_is_held+0xb5/0x140 [ 102.732778] ? trace_hardirqs_off+0x10/0x10 [ 102.737080] rtnl_newlink+0xe0c/0x1390 [ 102.740961] ? rtnl_link_unregister+0x270/0x270 [ 102.745618] ? finish_task_switch+0x178/0x650 [ 102.750085] ? finish_task_switch+0x14d/0x650 [ 102.754556] ? find_held_lock+0x36/0x1d0 [ 102.758611] ? __mutex_lock+0x8b7/0x14c0 [ 102.762650] ? lock_downgrade+0x7f0/0x7f0 [ 102.767293] ? do_raw_spin_unlock+0x16a/0x250 [ 102.771790] rtnetlink_rcv_msg+0x34c/0x9e0 [ 102.776013] ? rtnl_bridge_getlink+0x760/0x760 [ 102.780566] ? find_held_lock+0x36/0x1d0 [ 102.784615] netlink_rcv_skb+0x133/0x370 [ 102.788663] ? rtnl_bridge_getlink+0x760/0x760 [ 102.793216] ? netlink_ack+0xa00/0xa00 [ 102.797080] ? netlink_deliver_tap+0x8e/0x920 [ 102.801562] rtnetlink_rcv+0x10/0x20 [ 102.805255] netlink_unicast+0x40b/0x600 [ 102.809294] ? netlink_attachskb+0x6d0/0x6d0 [ 102.813691] netlink_sendmsg+0x730/0xbd0 [ 102.817731] ? netlink_unicast+0x600/0x600 [ 102.821963] ? selinux_socket_sendmsg+0x31/0x40 [ 102.826606] ? security_socket_sendmsg+0x6a/0xa0 [ 102.831333] ? netlink_unicast+0x600/0x600 [ 102.835557] sock_sendmsg+0xb5/0xf0 [ 102.839223] ___sys_sendmsg+0x625/0x920 [ 102.843184] ? trace_hardirqs_off+0x10/0x10 [ 102.847509] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 102.852243] ? find_held_lock+0x36/0x1d0 [ 102.856284] ? lock_downgrade+0x7f0/0x7f0 [ 102.860412] ? __fget+0x1ca/0x2f0 [ 102.863841] ? __fget_light+0x166/0x200 [ 102.867789] ? __fdget+0xe/0x10 [ 102.871046] ? sockfd_lookup_light+0x1c/0x150 [ 102.875521] __sys_sendmsg+0xc1/0x140 [ 102.879300] ? SyS_shutdown+0x180/0x180 [ 102.883262] ? __sb_end_write+0xa4/0xd0 [ 102.887237] ? mutex_unlock+0xd/0x10 [ 102.890950] ? do_syscall_64+0x4c/0x5b0 [ 102.894913] ? __sys_sendmsg+0x140/0x140 [ 102.898953] SyS_sendmsg+0xd/0x20 [ 102.902389] do_syscall_64+0x1c7/0x5b0 [ 102.906375] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 102.911202] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 102.916374] RIP: 0033:0x45b399 [ 102.919538] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 102.927233] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 102.934480] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 102.941734] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 102.948981] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 102.956223] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 102.967008] batman_adv: batadv0: Adding interface: veth1_to_bond [ 102.973446] batman_adv: batadv0: The MTU of interface veth1_to_bond 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. [ 102.998930] batman_adv: batadv0: Interface activated: veth1_to_bond [ 103.007082] FAULT_INJECTION: forcing a failure. [ 103.007082] name failslab, interval 1, probability 0, space 0, times 0 [ 103.023809] CPU: 0 PID: 8160 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 103.031618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.040969] Call Trace: [ 103.043573] dump_stack+0xf7/0x13b [ 103.047115] should_fail.cold.3+0x105/0x14b [ 103.051424] should_failslab+0xba/0xf0 [ 103.055291] kmem_cache_alloc_node_trace+0x279/0x780 [ 103.060408] __kmalloc_node_track_caller+0x3c/0x70 [ 103.065323] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 103.070057] __alloc_skb+0xc1/0x500 [ 103.073660] ? skb_trim+0x160/0x160 [ 103.077260] ? if_nlmsg_size+0x2d9/0x6f0 [ 103.081304] rtmsg_ifinfo_build_skb+0x68/0x120 [ 103.085893] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 103.090727] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 103.095634] rtnetlink_event+0xc2/0x110 [ 103.099587] notifier_call_chain+0xd6/0x150 [ 103.103887] raw_notifier_call_chain+0x11/0x20 [ 103.108446] call_netdevice_notifiers_info+0x4b/0x60 [ 103.113542] __netdev_upper_dev_link+0x18e/0x1f0 [ 103.118275] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 103.123010] netdev_master_upper_dev_link+0x14/0x20 [ 103.128000] batadv_hardif_enable_interface+0x1f4/0xa10 [ 103.133341] batadv_softif_slave_add+0x7f/0xd0 [ 103.137918] do_set_master+0x163/0x1f0 [ 103.141884] do_setlink+0x9dd/0x2c50 [ 103.145573] ? __lock_acquire+0x6a4/0x4500 [ 103.149797] ? rtnl_register+0x20/0x20 [ 103.153661] ? trace_hardirqs_on+0x10/0x10 [ 103.157869] ? trace_hardirqs_off+0x10/0x10 [ 103.165235] ? __lock_acquire+0x6a4/0x4500 [ 103.169444] ? trace_hardirqs_off+0x10/0x10 [ 103.173740] ? trace_hardirqs_off+0x10/0x10 [ 103.178049] ? __lock_is_held+0xb5/0x140 [ 103.182084] ? trace_hardirqs_off+0x10/0x10 [ 103.186406] rtnl_newlink+0xe0c/0x1390 [ 103.190363] ? rtnl_link_unregister+0x270/0x270 [ 103.195003] ? finish_task_switch+0x178/0x650 [ 103.199485] ? finish_task_switch+0x14d/0x650 [ 103.203960] ? find_held_lock+0x36/0x1d0 [ 103.208014] ? __mutex_lock+0x8b7/0x14c0 [ 103.212050] ? lock_downgrade+0x7f0/0x7f0 [ 103.216170] ? do_raw_spin_unlock+0x16a/0x250 [ 103.220674] rtnetlink_rcv_msg+0x34c/0x9e0 [ 103.225059] ? rtnl_bridge_getlink+0x760/0x760 [ 103.229620] ? find_held_lock+0x36/0x1d0 [ 103.233682] netlink_rcv_skb+0x133/0x370 [ 103.237718] ? rtnl_bridge_getlink+0x760/0x760 [ 103.242273] ? netlink_ack+0xa00/0xa00 [ 103.246134] ? netlink_deliver_tap+0x8e/0x920 [ 103.250606] rtnetlink_rcv+0x10/0x20 [ 103.254403] netlink_unicast+0x40b/0x600 [ 103.258438] ? netlink_attachskb+0x6d0/0x6d0 [ 103.262823] netlink_sendmsg+0x730/0xbd0 [ 103.266858] ? netlink_unicast+0x600/0x600 [ 103.271083] ? selinux_socket_sendmsg+0x31/0x40 [ 103.275726] ? security_socket_sendmsg+0x6a/0xa0 [ 103.281076] ? netlink_unicast+0x600/0x600 [ 103.285290] sock_sendmsg+0xb5/0xf0 [ 103.288898] ___sys_sendmsg+0x625/0x920 [ 103.292844] ? trace_hardirqs_off+0x10/0x10 [ 103.297143] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 103.301964] ? find_held_lock+0x36/0x1d0 [ 103.306009] ? lock_downgrade+0x7f0/0x7f0 [ 103.310133] ? __fget+0x1ca/0x2f0 [ 103.313564] ? __fget_light+0x166/0x200 [ 103.317516] ? __fdget+0xe/0x10 [ 103.320781] ? sockfd_lookup_light+0x1c/0x150 [ 103.325262] __sys_sendmsg+0xc1/0x140 [ 103.329044] ? SyS_shutdown+0x180/0x180 [ 103.332998] ? __sb_end_write+0xa4/0xd0 [ 103.336982] ? mutex_unlock+0xd/0x10 [ 103.340684] ? do_syscall_64+0x4c/0x5b0 [ 103.344630] ? __sys_sendmsg+0x140/0x140 [ 103.348670] SyS_sendmsg+0xd/0x20 [ 103.352107] do_syscall_64+0x1c7/0x5b0 [ 103.355988] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 103.360817] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 103.366006] RIP: 0033:0x45b399 [ 103.369170] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 103.376858] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 103.384115] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 103.391434] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 103.398694] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 103.405948] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 103.421079] batman_adv: batadv0: Adding interface: veth0_to_team 2020/06/04 21:06:22 executed programs: 101 [ 103.427447] batman_adv: batadv0: The MTU of interface veth0_to_team 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. [ 103.453731] batman_adv: batadv0: Interface activated: veth0_to_team [ 103.461406] FAULT_INJECTION: forcing a failure. [ 103.461406] name failslab, interval 1, probability 0, space 0, times 0 [ 103.477737] CPU: 0 PID: 8164 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 103.485636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.494988] Call Trace: [ 103.497576] dump_stack+0xf7/0x13b [ 103.501180] should_fail.cold.3+0x105/0x14b [ 103.505491] should_failslab+0xba/0xf0 [ 103.509358] kmem_cache_alloc_node_trace+0x279/0x780 [ 103.514443] __kmalloc_node_track_caller+0x3c/0x70 [ 103.519375] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 103.524132] __alloc_skb+0xc1/0x500 [ 103.528695] ? skb_trim+0x160/0x160 [ 103.532306] ? if_nlmsg_size+0x2d9/0x6f0 [ 103.536344] rtmsg_ifinfo_build_skb+0x68/0x120 [ 103.540923] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 103.545742] rtmsg_ifinfo+0x4a/0x70 [ 103.549353] bond_upper_dev_unlink.isra.45+0x95/0xc0 [ 103.554579] __bond_release_one+0x2c2/0x1370 [ 103.558972] ? notifier_call_chain+0xd6/0x150 [ 103.563449] ? bond_enslave+0x4a80/0x4a80 [ 103.567575] ? raw_notifier_call_chain+0x11/0x20 [ 103.572315] ? call_netdevice_notifiers_info+0x4b/0x60 [ 103.577584] ? __dev_notify_flags+0x1c1/0x210 [ 103.582063] ? dev_change_name+0x8f0/0x8f0 [ 103.586270] ? __dev_change_flags+0x151/0x550 [ 103.590743] ? dev_set_allmulti+0x10/0x10 [ 103.594882] bond_release+0xd/0x10 [ 103.598404] do_set_master+0xb6/0x1f0 [ 103.602194] do_setlink+0x9dd/0x2c50 [ 103.605888] ? rtnl_register+0x20/0x20 [ 103.609752] ? trace_hardirqs_off+0x10/0x10 [ 103.614063] ? trace_hardirqs_on+0x10/0x10 [ 103.618273] ? trace_hardirqs_off+0x10/0x10 [ 103.622574] ? __lock_acquire+0x6a4/0x4500 [ 103.626805] ? trace_hardirqs_off+0x10/0x10 [ 103.631100] ? trace_hardirqs_off+0x10/0x10 [ 103.635399] ? __lock_is_held+0xb5/0x140 [ 103.639437] ? trace_hardirqs_off+0x10/0x10 [ 103.643737] ? trace_hardirqs_off+0x10/0x10 [ 103.648044] rtnl_newlink+0xe0c/0x1390 [ 103.651913] ? memset+0x31/0x40 [ 103.655194] ? rtnl_newlink+0x6d0/0x1390 [ 103.659234] ? rtnl_link_unregister+0x270/0x270 [ 103.663880] ? finish_task_switch+0x178/0x650 [ 103.668358] ? finish_task_switch+0x14d/0x650 [ 103.672831] ? find_held_lock+0x36/0x1d0 [ 103.676873] ? __mutex_lock+0x8b7/0x14c0 [ 103.680905] ? lock_downgrade+0x7f0/0x7f0 [ 103.685202] ? do_raw_spin_unlock+0x16a/0x250 [ 103.689700] rtnetlink_rcv_msg+0x34c/0x9e0 [ 103.693927] ? rtnl_bridge_getlink+0x760/0x760 [ 103.698505] ? find_held_lock+0x36/0x1d0 [ 103.702550] netlink_rcv_skb+0x133/0x370 [ 103.706617] ? rtnl_bridge_getlink+0x760/0x760 [ 103.711173] ? netlink_ack+0xa00/0xa00 [ 103.715048] ? netlink_deliver_tap+0x8e/0x920 [ 103.719533] rtnetlink_rcv+0x10/0x20 [ 103.723219] netlink_unicast+0x40b/0x600 [ 103.727255] ? netlink_attachskb+0x6d0/0x6d0 [ 103.731639] netlink_sendmsg+0x730/0xbd0 [ 103.735674] ? netlink_unicast+0x600/0x600 [ 103.739882] ? selinux_socket_sendmsg+0x31/0x40 [ 103.744523] ? security_socket_sendmsg+0x6a/0xa0 [ 103.749255] ? netlink_unicast+0x600/0x600 [ 103.753471] sock_sendmsg+0xb5/0xf0 [ 103.757088] ___sys_sendmsg+0x625/0x920 [ 103.761063] ? trace_hardirqs_off+0x10/0x10 [ 103.765357] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 103.770088] ? find_held_lock+0x36/0x1d0 [ 103.774125] ? lock_downgrade+0x7f0/0x7f0 [ 103.778260] ? __fget+0x1ca/0x2f0 [ 103.781695] ? __fget_light+0x166/0x200 [ 103.785643] ? __fdget+0xe/0x10 [ 103.788911] ? sockfd_lookup_light+0x1c/0x150 [ 103.793408] __sys_sendmsg+0xc1/0x140 [ 103.797189] ? SyS_shutdown+0x180/0x180 [ 103.801148] ? __sb_end_write+0xa4/0xd0 [ 103.805105] ? mutex_unlock+0xd/0x10 [ 103.808803] ? do_syscall_64+0x4c/0x5b0 [ 103.812761] ? __sys_sendmsg+0x140/0x140 [ 103.816817] SyS_sendmsg+0xd/0x20 [ 103.821297] do_syscall_64+0x1c7/0x5b0 [ 103.825170] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 103.829989] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 103.835151] RIP: 0033:0x45b399 [ 103.838317] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 103.846008] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 103.853296] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 103.860546] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 103.876910] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 103.884171] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 103.911066] bond0: Releasing backup interface bond_slave_1 [ 103.942711] batman_adv: batadv0: Adding interface: bond_slave_1 [ 103.948821] batman_adv: batadv0: The MTU of interface bond_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. [ 103.975040] batman_adv: batadv0: Not using interface bond_slave_1 (retrying later): interface not active [ 103.986387] FAULT_INJECTION: forcing a failure. [ 103.986387] name failslab, interval 1, probability 0, space 0, times 0 [ 104.008394] CPU: 0 PID: 8168 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 104.016217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.025591] Call Trace: [ 104.028158] dump_stack+0xf7/0x13b [ 104.031679] should_fail.cold.3+0x105/0x14b [ 104.036040] should_failslab+0xba/0xf0 [ 104.039897] kmem_cache_alloc_node_trace+0x279/0x780 [ 104.044974] __kmalloc_node_track_caller+0x3c/0x70 [ 104.049889] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 104.054621] __alloc_skb+0xc1/0x500 [ 104.058222] ? skb_trim+0x160/0x160 [ 104.061828] ? if_nlmsg_size+0x2d9/0x6f0 [ 104.065863] rtmsg_ifinfo_build_skb+0x68/0x120 [ 104.070433] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 104.075264] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 104.080252] rtnetlink_event+0xc2/0x110 [ 104.084200] notifier_call_chain+0xd6/0x150 [ 104.088516] raw_notifier_call_chain+0x11/0x20 [ 104.093070] call_netdevice_notifiers_info+0x4b/0x60 [ 104.098151] __netdev_upper_dev_link+0x18e/0x1f0 [ 104.102887] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 104.107617] netdev_master_upper_dev_link+0x14/0x20 [ 104.112618] batadv_hardif_enable_interface+0x1f4/0xa10 [ 104.117953] batadv_softif_slave_add+0x7f/0xd0 [ 104.122633] do_set_master+0x163/0x1f0 [ 104.126502] do_setlink+0x9dd/0x2c50 [ 104.130189] ? __lock_acquire+0x6a4/0x4500 [ 104.134424] ? rtnl_register+0x20/0x20 [ 104.138287] ? trace_hardirqs_on+0x10/0x10 [ 104.142493] ? trace_hardirqs_off+0x10/0x10 [ 104.146786] ? __lock_acquire+0x6a4/0x4500 [ 104.151003] ? trace_hardirqs_off+0x10/0x10 [ 104.155296] ? __lock_is_held+0xb5/0x140 [ 104.159325] ? trace_hardirqs_off+0x10/0x10 [ 104.163623] ? trace_hardirqs_off+0x10/0x10 [ 104.167924] rtnl_newlink+0xe0c/0x1390 [ 104.171789] ? rtnl_link_unregister+0x270/0x270 [ 104.176430] ? finish_task_switch+0x178/0x650 [ 104.180897] ? finish_task_switch+0x14d/0x650 [ 104.185365] ? find_held_lock+0x36/0x1d0 [ 104.189402] ? __mutex_lock+0x8b7/0x14c0 [ 104.193444] ? lock_downgrade+0x7f0/0x7f0 [ 104.197564] ? do_raw_spin_unlock+0x16a/0x250 [ 104.202045] rtnetlink_rcv_msg+0x34c/0x9e0 [ 104.206252] ? rtnl_bridge_getlink+0x760/0x760 [ 104.210815] ? find_held_lock+0x36/0x1d0 [ 104.214850] netlink_rcv_skb+0x133/0x370 [ 104.219044] ? rtnl_bridge_getlink+0x760/0x760 [ 104.223608] ? netlink_ack+0xa00/0xa00 [ 104.227477] ? netlink_deliver_tap+0x8e/0x920 [ 104.231947] rtnetlink_rcv+0x10/0x20 [ 104.235642] netlink_unicast+0x40b/0x600 [ 104.239675] ? netlink_attachskb+0x6d0/0x6d0 [ 104.244057] netlink_sendmsg+0x730/0xbd0 [ 104.248104] ? netlink_unicast+0x600/0x600 [ 104.252408] ? selinux_socket_sendmsg+0x31/0x40 [ 104.257048] ? security_socket_sendmsg+0x6a/0xa0 [ 104.261777] ? netlink_unicast+0x600/0x600 [ 104.266070] sock_sendmsg+0xb5/0xf0 [ 104.269670] ___sys_sendmsg+0x625/0x920 [ 104.273617] ? trace_hardirqs_off+0x10/0x10 [ 104.277910] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 104.282639] ? find_held_lock+0x36/0x1d0 [ 104.286674] ? lock_downgrade+0x7f0/0x7f0 [ 104.290797] ? __fget+0x1ca/0x2f0 [ 104.294224] ? __fget_light+0x166/0x200 [ 104.298178] ? __fdget+0xe/0x10 [ 104.301429] ? sockfd_lookup_light+0x1c/0x150 [ 104.305993] __sys_sendmsg+0xc1/0x140 [ 104.309773] ? SyS_shutdown+0x180/0x180 [ 104.313719] ? __sb_end_write+0xa4/0xd0 [ 104.317665] ? mutex_unlock+0xd/0x10 [ 104.321365] ? do_syscall_64+0x4c/0x5b0 [ 104.325320] ? __sys_sendmsg+0x140/0x140 [ 104.329360] SyS_sendmsg+0xd/0x20 [ 104.332793] do_syscall_64+0x1c7/0x5b0 [ 104.336667] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 104.341483] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 104.346653] RIP: 0033:0x45b399 [ 104.349817] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 104.366881] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 104.374127] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 104.381384] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 104.388687] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 104.396010] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 104.410377] batman_adv: batadv0: Adding interface: veth0_to_team [ 104.416950] batman_adv: batadv0: The MTU of interface veth0_to_team 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. [ 104.443739] batman_adv: batadv0: Interface activated: veth0_to_team [ 104.450911] FAULT_INJECTION: forcing a failure. [ 104.450911] name failslab, interval 1, probability 0, space 0, times 0 [ 104.463995] CPU: 0 PID: 8173 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 104.471796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.481146] Call Trace: [ 104.483733] dump_stack+0xf7/0x13b [ 104.487265] should_fail.cold.3+0x105/0x14b [ 104.491565] should_failslab+0xba/0xf0 [ 104.495426] kmem_cache_alloc_node_trace+0x279/0x780 [ 104.500521] __kmalloc_node_track_caller+0x3c/0x70 [ 104.505438] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 104.510557] __alloc_skb+0xc1/0x500 [ 104.514399] ? skb_trim+0x160/0x160 [ 104.518152] ? if_nlmsg_size+0x2d9/0x6f0 [ 104.522203] rtmsg_ifinfo_build_skb+0x68/0x120 [ 104.526883] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 104.531718] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 104.536680] rtnetlink_event+0xc2/0x110 [ 104.540642] notifier_call_chain+0xd6/0x150 [ 104.545037] raw_notifier_call_chain+0x11/0x20 [ 104.549595] call_netdevice_notifiers_info+0x4b/0x60 [ 104.554684] __netdev_upper_dev_link+0x18e/0x1f0 [ 104.559426] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 104.564167] netdev_master_upper_dev_link+0x14/0x20 [ 104.569165] batadv_hardif_enable_interface+0x1f4/0xa10 [ 104.574508] batadv_softif_slave_add+0x7f/0xd0 [ 104.579068] do_set_master+0x163/0x1f0 [ 104.582947] do_setlink+0x9dd/0x2c50 [ 104.586677] ? find_held_lock+0x36/0x1d0 [ 104.590721] ? rtnl_register+0x20/0x20 [ 104.594580] ? load_balance+0xb38/0x2190 [ 104.598615] ? lock_downgrade+0x7f0/0x7f0 [ 104.602752] ? lock_pin_lock+0x340/0x340 [ 104.606877] ? __lock_acquire+0x6a4/0x4500 [ 104.611094] ? trace_hardirqs_off+0x10/0x10 [ 104.615406] ? __lock_is_held+0xb5/0x140 [ 104.619465] ? trace_hardirqs_off+0x10/0x10 [ 104.623783] rtnl_newlink+0xe0c/0x1390 [ 104.627653] ? rtnl_link_unregister+0x270/0x270 [ 104.632295] ? finish_task_switch+0x178/0x650 [ 104.636761] ? finish_task_switch+0x14d/0x650 [ 104.641251] ? find_held_lock+0x36/0x1d0 [ 104.645305] ? __mutex_lock+0x8b7/0x14c0 [ 104.649340] ? lock_downgrade+0x7f0/0x7f0 [ 104.654692] ? do_raw_spin_unlock+0x16a/0x250 [ 104.659192] rtnetlink_rcv_msg+0x34c/0x9e0 [ 104.663404] ? rtnl_bridge_getlink+0x760/0x760 [ 104.667968] ? find_held_lock+0x36/0x1d0 [ 104.672020] netlink_rcv_skb+0x133/0x370 [ 104.676070] ? rtnl_bridge_getlink+0x760/0x760 [ 104.680650] ? netlink_ack+0xa00/0xa00 [ 104.684528] ? netlink_deliver_tap+0x8e/0x920 [ 104.688997] rtnetlink_rcv+0x10/0x20 [ 104.692691] netlink_unicast+0x40b/0x600 [ 104.696753] ? netlink_attachskb+0x6d0/0x6d0 [ 104.701155] netlink_sendmsg+0x730/0xbd0 [ 104.705191] ? netlink_unicast+0x600/0x600 [ 104.709414] ? selinux_socket_sendmsg+0x31/0x40 [ 104.714140] ? security_socket_sendmsg+0x6a/0xa0 [ 104.718937] ? netlink_unicast+0x600/0x600 [ 104.723153] sock_sendmsg+0xb5/0xf0 [ 104.726809] ___sys_sendmsg+0x625/0x920 [ 104.730762] ? trace_hardirqs_off+0x10/0x10 [ 104.735062] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 104.739808] ? find_held_lock+0x36/0x1d0 [ 104.743854] ? lock_downgrade+0x7f0/0x7f0 [ 104.747987] ? __fget+0x1ca/0x2f0 [ 104.751430] ? __fget_light+0x166/0x200 [ 104.755383] ? __fdget+0xe/0x10 [ 104.758640] ? sockfd_lookup_light+0x1c/0x150 [ 104.763151] __sys_sendmsg+0xc1/0x140 [ 104.766928] ? SyS_shutdown+0x180/0x180 [ 104.771021] ? __sb_end_write+0xa4/0xd0 [ 104.774987] ? mutex_unlock+0xd/0x10 [ 104.778683] ? do_syscall_64+0x4c/0x5b0 [ 104.782633] ? __sys_sendmsg+0x140/0x140 [ 104.786695] SyS_sendmsg+0xd/0x20 [ 104.790128] do_syscall_64+0x1c7/0x5b0 [ 104.793995] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 104.798820] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 104.804003] RIP: 0033:0x45b399 [ 104.807176] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 104.814860] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 104.822129] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 104.829387] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 104.836750] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 104.843996] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 104.856948] batman_adv: batadv0: Adding interface: veth0_to_hsr [ 104.863653] batman_adv: batadv0: The MTU of interface veth0_to_hsr 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. [ 104.889213] batman_adv: batadv0: Interface activated: veth0_to_hsr [ 104.897235] FAULT_INJECTION: forcing a failure. [ 104.897235] name failslab, interval 1, probability 0, space 0, times 0 [ 104.908608] CPU: 1 PID: 8177 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 104.916395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.925745] Call Trace: [ 104.928332] dump_stack+0xf7/0x13b [ 104.931973] should_fail.cold.3+0x105/0x14b [ 104.936294] should_failslab+0xba/0xf0 [ 104.940182] kmem_cache_alloc_node_trace+0x5a/0x780 [ 104.945196] __kmalloc_node_track_caller+0x3c/0x70 [ 104.950105] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 104.954837] __alloc_skb+0xc1/0x500 [ 104.958596] ? skb_trim+0x160/0x160 [ 104.962214] ? call_fib6_notifiers+0x3c/0x60 [ 104.966612] inet6_rt_notify+0xe0/0x290 [ 104.970628] fib6_del+0x89d/0xd80 [ 104.974062] fib6_clean_node+0x1d8/0x3f0 [ 104.978098] ? fib6_del+0xd80/0xd80 [ 104.981730] ? trace_hardirqs_on_caller+0x19e/0x580 [ 104.987562] ? fib6_walker_link+0xe2/0x120 [ 104.991783] fib6_walk_continue+0x1bb/0x920 [ 104.996265] ? _raw_write_unlock_bh+0x30/0x40 [ 105.000761] fib6_walk+0x90/0xe0 [ 105.004110] fib6_clean_tree+0x8f/0xb0 [ 105.007973] ? fib6_walk+0xe0/0xe0 [ 105.011487] ? fib6_del+0xd80/0xd80 [ 105.015086] ? fib6_clean_tree+0xb0/0xb0 [ 105.019121] ? fib6_remove_prefsrc+0x250/0x250 [ 105.023685] ? _raw_write_lock_bh+0x39/0x40 [ 105.027982] ? __fib6_clean_all+0xc5/0x1d0 [ 105.032219] __fib6_clean_all+0xde/0x1d0 [ 105.036270] ? fib6_remove_prefsrc+0x250/0x250 [ 105.040837] fib6_clean_all+0xe/0x10 [ 105.044544] rt6_ifdown+0x87/0x560 [ 105.048096] ? __lock_acquire+0x6a4/0x4500 [ 105.052308] ? rt6_clean_tohost+0x20/0x20 [ 105.056440] addrconf_ifdown+0xbb/0x1320 [ 105.060486] ? trace_hardirqs_off+0x10/0x10 [ 105.064799] ? add_addr+0x150/0x150 [ 105.068404] addrconf_notify+0x555/0x1b10 [ 105.072706] ? lock_downgrade+0x7f0/0x7f0 [ 105.076829] ? inet6_ifinfo_notify+0x100/0x100 [ 105.081390] ? nfqnl_rcv_dev_event+0x227/0x3b0 [ 105.085953] notifier_call_chain+0xd6/0x150 [ 105.090254] raw_notifier_call_chain+0x11/0x20 [ 105.094826] call_netdevice_notifiers_info+0x4b/0x60 [ 105.099911] dev_close_many+0x29b/0x610 [ 105.103876] ? list_netdevice+0x4b0/0x4b0 [ 105.108003] ? mark_held_locks+0xc7/0x130 [ 105.112124] ? dev_mc_unsync+0x165/0x1a5 [ 105.116167] dev_close.part.90+0xe5/0x190 [ 105.120297] ? dev_close_many+0x610/0x610 [ 105.124417] ? dev_mc_unsync+0x165/0x1a5 [ 105.128461] ? __local_bh_enable_ip+0x9c/0x180 [ 105.133369] ? _raw_spin_unlock_bh+0x30/0x40 [ 105.137820] dev_close+0x40/0x50 [ 105.141160] team_port_del+0x2c0/0x770 [ 105.145242] team_del_slave+0x34/0x70 [ 105.149021] do_set_master+0xb6/0x1f0 [ 105.152901] do_setlink+0x9dd/0x2c50 [ 105.156593] ? find_held_lock+0x36/0x1d0 [ 105.160640] ? rtnl_register+0x20/0x20 [ 105.164526] ? load_balance+0xb38/0x2190 [ 105.168563] ? lock_downgrade+0x7f0/0x7f0 [ 105.172685] ? lock_pin_lock+0x340/0x340 [ 105.176730] ? __lock_acquire+0x6a4/0x4500 [ 105.180940] ? trace_hardirqs_off+0x10/0x10 [ 105.185240] ? __lock_is_held+0xb5/0x140 [ 105.189279] ? trace_hardirqs_off+0x10/0x10 [ 105.193592] rtnl_newlink+0xe0c/0x1390 [ 105.197474] ? rtnl_newlink+0x6d0/0x1390 [ 105.201527] ? rtnl_link_unregister+0x270/0x270 [ 105.206182] ? finish_task_switch+0x178/0x650 [ 105.210658] ? finish_task_switch+0x14d/0x650 [ 105.215132] ? find_held_lock+0x36/0x1d0 [ 105.219172] ? __mutex_lock+0x8b7/0x14c0 [ 105.223209] ? lock_downgrade+0x7f0/0x7f0 [ 105.227353] ? do_raw_spin_unlock+0x16a/0x250 [ 105.232011] rtnetlink_rcv_msg+0x34c/0x9e0 [ 105.236221] ? rtnl_bridge_getlink+0x760/0x760 [ 105.240790] ? find_held_lock+0x36/0x1d0 [ 105.244834] netlink_rcv_skb+0x133/0x370 [ 105.248888] ? rtnl_bridge_getlink+0x760/0x760 [ 105.253462] ? netlink_ack+0xa00/0xa00 [ 105.257331] ? netlink_deliver_tap+0x8e/0x920 [ 105.261812] rtnetlink_rcv+0x10/0x20 [ 105.265502] netlink_unicast+0x40b/0x600 [ 105.269541] ? netlink_attachskb+0x6d0/0x6d0 [ 105.273944] netlink_sendmsg+0x730/0xbd0 [ 105.278054] ? netlink_unicast+0x600/0x600 [ 105.282268] ? selinux_socket_sendmsg+0x31/0x40 [ 105.286915] ? security_socket_sendmsg+0x6a/0xa0 [ 105.291656] ? netlink_unicast+0x600/0x600 [ 105.295879] sock_sendmsg+0xb5/0xf0 [ 105.299490] ___sys_sendmsg+0x625/0x920 [ 105.303451] ? trace_hardirqs_off+0x10/0x10 [ 105.307878] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 105.312617] ? find_held_lock+0x36/0x1d0 [ 105.316677] ? lock_downgrade+0x7f0/0x7f0 [ 105.320806] ? __fget+0x1ca/0x2f0 [ 105.324238] ? __fget_light+0x166/0x200 [ 105.328190] ? __fdget+0xe/0x10 [ 105.331445] ? sockfd_lookup_light+0x1c/0x150 [ 105.335916] __sys_sendmsg+0xc1/0x140 [ 105.339693] ? SyS_shutdown+0x180/0x180 [ 105.343675] ? __sb_end_write+0xa4/0xd0 [ 105.347657] ? mutex_unlock+0xd/0x10 [ 105.351366] ? do_syscall_64+0x4c/0x5b0 [ 105.355314] ? __sys_sendmsg+0x140/0x140 [ 105.359350] SyS_sendmsg+0xd/0x20 [ 105.362798] do_syscall_64+0x1c7/0x5b0 [ 105.366667] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 105.371486] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 105.376661] RIP: 0033:0x45b399 [ 105.379828] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 105.387517] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 105.394772] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 105.402025] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 105.409272] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 105.416521] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 105.428642] team0: Port device team_slave_1 removed [ 105.451664] batman_adv: batadv0: Adding interface: team_slave_1 [ 105.457752] batman_adv: batadv0: The MTU of interface team_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. [ 105.483247] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 105.493720] FAULT_INJECTION: forcing a failure. [ 105.493720] name failslab, interval 1, probability 0, space 0, times 0 [ 105.497639] syz-executor.2 (8177) used greatest stack depth: 23176 bytes left [ 105.504999] CPU: 1 PID: 8179 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 105.505003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.505006] Call Trace: [ 105.505018] dump_stack+0xf7/0x13b [ 105.505028] should_fail.cold.3+0x105/0x14b [ 105.505038] should_failslab+0xba/0xf0 [ 105.505046] kmem_cache_alloc_node_trace+0x279/0x780 [ 105.505058] __kmalloc_node_track_caller+0x3c/0x70 [ 105.505067] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 105.505075] __alloc_skb+0xc1/0x500 [ 105.505081] ? skb_trim+0x160/0x160 [ 105.505089] ? if_nlmsg_size+0x2d9/0x6f0 [ 105.505097] rtmsg_ifinfo_build_skb+0x68/0x120 [ 105.505104] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 105.579544] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 105.584454] rtnetlink_event+0xc2/0x110 [ 105.588466] notifier_call_chain+0xd6/0x150 [ 105.592824] raw_notifier_call_chain+0x11/0x20 [ 105.597385] call_netdevice_notifiers_info+0x4b/0x60 [ 105.602464] __netdev_upper_dev_link+0x18e/0x1f0 [ 105.607193] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 105.611928] netdev_master_upper_dev_link+0x14/0x20 [ 105.616923] batadv_hardif_enable_interface+0x1f4/0xa10 [ 105.622267] batadv_softif_slave_add+0x7f/0xd0 [ 105.626948] do_set_master+0x163/0x1f0 [ 105.630821] do_setlink+0x9dd/0x2c50 [ 105.634518] ? find_held_lock+0x36/0x1d0 [ 105.638561] ? rtnl_register+0x20/0x20 [ 105.642428] ? load_balance+0xb38/0x2190 [ 105.646478] ? lock_downgrade+0x7f0/0x7f0 [ 105.650614] ? lock_pin_lock+0x340/0x340 [ 105.654669] ? __lock_acquire+0x6a4/0x4500 [ 105.658878] ? trace_hardirqs_off+0x10/0x10 [ 105.663175] ? __lock_is_held+0xb5/0x140 [ 105.667213] ? trace_hardirqs_off+0x10/0x10 [ 105.671514] rtnl_newlink+0xe0c/0x1390 [ 105.675411] ? rtnl_link_unregister+0x270/0x270 [ 105.680054] ? finish_task_switch+0x178/0x650 [ 105.684524] ? finish_task_switch+0x14d/0x650 [ 105.689001] ? find_held_lock+0x36/0x1d0 [ 105.693102] ? __mutex_lock+0x8b7/0x14c0 [ 105.697138] ? lock_downgrade+0x7f0/0x7f0 [ 105.701267] ? do_raw_spin_unlock+0x16a/0x250 [ 105.705776] rtnetlink_rcv_msg+0x34c/0x9e0 [ 105.710002] ? rtnl_bridge_getlink+0x760/0x760 [ 105.714559] ? find_held_lock+0x36/0x1d0 [ 105.718650] netlink_rcv_skb+0x133/0x370 [ 105.722713] ? rtnl_bridge_getlink+0x760/0x760 [ 105.727279] ? netlink_ack+0xa00/0xa00 [ 105.731147] ? netlink_deliver_tap+0x8e/0x920 [ 105.735632] rtnetlink_rcv+0x10/0x20 [ 105.739323] netlink_unicast+0x40b/0x600 [ 105.743483] ? netlink_attachskb+0x6d0/0x6d0 [ 105.747880] netlink_sendmsg+0x730/0xbd0 [ 105.751930] ? netlink_unicast+0x600/0x600 [ 105.756157] ? selinux_socket_sendmsg+0x31/0x40 [ 105.760809] ? security_socket_sendmsg+0x6a/0xa0 [ 105.765549] ? netlink_unicast+0x600/0x600 [ 105.769778] sock_sendmsg+0xb5/0xf0 [ 105.773392] ___sys_sendmsg+0x625/0x920 [ 105.777352] ? trace_hardirqs_off+0x10/0x10 [ 105.781651] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 105.786395] ? find_held_lock+0x36/0x1d0 [ 105.790558] ? lock_downgrade+0x7f0/0x7f0 [ 105.794749] ? __fget+0x1ca/0x2f0 [ 105.798204] ? __fget_light+0x166/0x200 [ 105.802157] ? __fdget+0xe/0x10 [ 105.805423] ? sockfd_lookup_light+0x1c/0x150 [ 105.809906] __sys_sendmsg+0xc1/0x140 [ 105.813765] ? SyS_shutdown+0x180/0x180 [ 105.817744] ? __sb_end_write+0xa4/0xd0 [ 105.821706] ? mutex_unlock+0xd/0x10 [ 105.825416] ? do_syscall_64+0x4c/0x5b0 [ 105.829378] ? __sys_sendmsg+0x140/0x140 [ 105.833420] SyS_sendmsg+0xd/0x20 [ 105.836850] do_syscall_64+0x1c7/0x5b0 [ 105.840712] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 105.846690] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 105.851875] RIP: 0033:0x45b399 [ 105.855052] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 105.862825] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 105.870082] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 105.877394] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 105.884708] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 105.891957] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 105.900533] batman_adv: batadv0: Adding interface: veth0_to_team [ 105.906743] batman_adv: batadv0: The MTU of interface veth0_to_team 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. [ 105.931883] batman_adv: batadv0: Interface activated: veth0_to_team [ 105.939052] FAULT_INJECTION: forcing a failure. [ 105.939052] name failslab, interval 1, probability 0, space 0, times 0 [ 105.950326] CPU: 1 PID: 8183 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 105.958112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.967468] Call Trace: [ 105.970051] dump_stack+0xf7/0x13b [ 105.973590] should_fail.cold.3+0x105/0x14b [ 105.978020] should_failslab+0xba/0xf0 [ 105.981900] kmem_cache_alloc_node_trace+0x279/0x780 [ 105.986998] __kmalloc_node_track_caller+0x3c/0x70 [ 105.991909] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 105.996645] __alloc_skb+0xc1/0x500 [ 106.000261] ? skb_trim+0x160/0x160 [ 106.003913] ? if_nlmsg_size+0x2d9/0x6f0 [ 106.008081] rtmsg_ifinfo_build_skb+0x68/0x120 [ 106.012708] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 106.017609] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 106.022570] rtnetlink_event+0xc2/0x110 [ 106.026583] notifier_call_chain+0xd6/0x150 [ 106.030964] raw_notifier_call_chain+0x11/0x20 [ 106.035530] call_netdevice_notifiers_info+0x4b/0x60 [ 106.040672] __netdev_upper_dev_link+0x18e/0x1f0 [ 106.045814] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 106.050549] netdev_master_upper_dev_link+0x14/0x20 [ 106.055574] batadv_hardif_enable_interface+0x1f4/0xa10 [ 106.060929] batadv_softif_slave_add+0x7f/0xd0 [ 106.065514] do_set_master+0x163/0x1f0 [ 106.069377] do_setlink+0x9dd/0x2c50 [ 106.073072] ? find_held_lock+0x36/0x1d0 [ 106.077114] ? rtnl_register+0x20/0x20 [ 106.080978] ? load_balance+0xb38/0x2190 [ 106.085021] ? lock_downgrade+0x7f0/0x7f0 [ 106.089154] ? lock_pin_lock+0x340/0x340 [ 106.093196] ? __lock_acquire+0x6a4/0x4500 [ 106.097408] ? trace_hardirqs_off+0x10/0x10 [ 106.101719] ? __lock_is_held+0xb5/0x140 [ 106.105757] ? trace_hardirqs_off+0x10/0x10 [ 106.110071] rtnl_newlink+0xe0c/0x1390 [ 106.113960] ? rtnl_link_unregister+0x270/0x270 [ 106.118622] ? finish_task_switch+0x178/0x650 [ 106.123091] ? finish_task_switch+0x14d/0x650 [ 106.127567] ? find_held_lock+0x36/0x1d0 [ 106.131609] ? __mutex_lock+0x8b7/0x14c0 [ 106.135661] ? lock_downgrade+0x7f0/0x7f0 [ 106.139792] ? do_raw_spin_unlock+0x16a/0x250 [ 106.144303] rtnetlink_rcv_msg+0x34c/0x9e0 [ 106.148521] ? rtnl_bridge_getlink+0x760/0x760 [ 106.153084] ? find_held_lock+0x36/0x1d0 [ 106.157139] netlink_rcv_skb+0x133/0x370 [ 106.161183] ? rtnl_bridge_getlink+0x760/0x760 [ 106.165769] ? netlink_ack+0xa00/0xa00 [ 106.169643] ? netlink_deliver_tap+0x8e/0x920 [ 106.174127] rtnetlink_rcv+0x10/0x20 [ 106.177816] netlink_unicast+0x40b/0x600 [ 106.181859] ? netlink_attachskb+0x6d0/0x6d0 [ 106.186339] netlink_sendmsg+0x730/0xbd0 [ 106.192286] ? netlink_unicast+0x600/0x600 [ 106.196500] ? selinux_socket_sendmsg+0x31/0x40 [ 106.201147] ? security_socket_sendmsg+0x6a/0xa0 [ 106.205891] ? netlink_unicast+0x600/0x600 [ 106.210108] sock_sendmsg+0xb5/0xf0 [ 106.213741] ___sys_sendmsg+0x625/0x920 [ 106.217694] ? trace_hardirqs_off+0x10/0x10 [ 106.221989] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 106.226748] ? find_held_lock+0x36/0x1d0 [ 106.230807] ? lock_downgrade+0x7f0/0x7f0 [ 106.234951] ? __fget+0x1ca/0x2f0 [ 106.238397] ? __fget_light+0x166/0x200 [ 106.242347] ? __fdget+0xe/0x10 [ 106.245602] ? sockfd_lookup_light+0x1c/0x150 [ 106.250073] __sys_sendmsg+0xc1/0x140 [ 106.253847] ? SyS_shutdown+0x180/0x180 [ 106.257796] ? __sb_end_write+0xa4/0xd0 [ 106.261750] ? mutex_unlock+0xd/0x10 [ 106.265460] ? do_syscall_64+0x4c/0x5b0 [ 106.269411] ? __sys_sendmsg+0x140/0x140 [ 106.273446] SyS_sendmsg+0xd/0x20 [ 106.276880] do_syscall_64+0x1c7/0x5b0 [ 106.280807] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 106.285676] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 106.290851] RIP: 0033:0x45b399 [ 106.294062] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 106.301753] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 106.309004] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 106.316255] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 106.323532] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 106.330781] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 106.341564] batman_adv: batadv0: Adding interface: veth1_to_team [ 106.347746] batman_adv: batadv0: The MTU of interface veth1_to_team 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. [ 106.372885] batman_adv: batadv0: Interface activated: veth1_to_team [ 106.382224] FAULT_INJECTION: forcing a failure. [ 106.382224] name failslab, interval 1, probability 0, space 0, times 0 [ 106.393515] CPU: 0 PID: 8187 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 106.401304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 106.410655] Call Trace: [ 106.413242] dump_stack+0xf7/0x13b [ 106.416784] should_fail.cold.3+0x105/0x14b [ 106.421106] should_failslab+0xba/0xf0 [ 106.424989] kmem_cache_alloc_node_trace+0x5a/0x780 [ 106.430127] __kmalloc_node_track_caller+0x3c/0x70 [ 106.435046] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 106.439841] __alloc_skb+0xc1/0x500 [ 106.443452] ? skb_trim+0x160/0x160 [ 106.447060] ? call_fib6_notifiers+0x3c/0x60 [ 106.451456] inet6_rt_notify+0xe0/0x290 [ 106.455425] fib6_del+0x89d/0xd80 [ 106.458872] fib6_clean_node+0x1d8/0x3f0 [ 106.462926] ? fib6_del+0xd80/0xd80 [ 106.466541] ? trace_hardirqs_on_caller+0x19e/0x580 [ 106.471532] ? fib6_walker_link+0xe2/0x120 [ 106.475869] fib6_walk_continue+0x1bb/0x920 [ 106.480176] ? _raw_write_unlock_bh+0x30/0x40 [ 106.484671] fib6_walk+0x90/0xe0 [ 106.488022] fib6_clean_tree+0x8f/0xb0 [ 106.491897] ? fib6_walk+0xe0/0xe0 [ 106.495419] ? fib6_del+0xd80/0xd80 [ 106.499025] ? fib6_clean_tree+0xb0/0xb0 [ 106.503076] ? fib6_remove_prefsrc+0x250/0x250 [ 106.507651] ? _raw_write_lock_bh+0x39/0x40 [ 106.511952] ? __fib6_clean_all+0xc5/0x1d0 [ 106.516179] __fib6_clean_all+0xde/0x1d0 [ 106.520352] ? fib6_remove_prefsrc+0x250/0x250 [ 106.525618] fib6_clean_all+0xe/0x10 [ 106.529337] rt6_ifdown+0x87/0x560 [ 106.532872] ? __lock_acquire+0x6a4/0x4500 [ 106.537094] ? rt6_clean_tohost+0x20/0x20 [ 106.541232] addrconf_ifdown+0xbb/0x1320 [ 106.545294] ? trace_hardirqs_off+0x10/0x10 [ 106.549619] ? add_addr+0x150/0x150 [ 106.553424] addrconf_notify+0x555/0x1b10 [ 106.557642] ? lock_downgrade+0x7f0/0x7f0 [ 106.561779] ? inet6_ifinfo_notify+0x100/0x100 [ 106.566507] ? nfqnl_rcv_dev_event+0x227/0x3b0 [ 106.571075] notifier_call_chain+0xd6/0x150 [ 106.575385] raw_notifier_call_chain+0x11/0x20 [ 106.579952] call_netdevice_notifiers_info+0x4b/0x60 [ 106.585049] dev_close_many+0x29b/0x610 [ 106.589017] ? list_netdevice+0x4b0/0x4b0 [ 106.593151] ? mark_held_locks+0xc7/0x130 [ 106.597292] ? dev_mc_unsync+0x165/0x1a5 [ 106.601336] dev_close.part.90+0xe5/0x190 [ 106.605467] ? dev_close_many+0x610/0x610 [ 106.609596] ? dev_mc_unsync+0x165/0x1a5 [ 106.613677] ? __local_bh_enable_ip+0x9c/0x180 [ 106.618271] ? _raw_spin_unlock_bh+0x30/0x40 [ 106.622662] dev_close+0x40/0x50 [ 106.626011] team_port_del+0x2c0/0x770 [ 106.629876] team_del_slave+0x34/0x70 [ 106.633651] do_set_master+0xb6/0x1f0 [ 106.637439] do_setlink+0x9dd/0x2c50 [ 106.641133] ? find_held_lock+0x36/0x1d0 [ 106.645185] ? rtnl_register+0x20/0x20 [ 106.649056] ? load_balance+0xb38/0x2190 [ 106.653117] ? lock_downgrade+0x7f0/0x7f0 [ 106.657257] ? lock_pin_lock+0x340/0x340 [ 106.661308] ? __lock_acquire+0x6a4/0x4500 [ 106.665526] ? trace_hardirqs_off+0x10/0x10 [ 106.669828] ? __lock_is_held+0xb5/0x140 [ 106.673889] ? trace_hardirqs_off+0x10/0x10 [ 106.678191] rtnl_newlink+0xe0c/0x1390 [ 106.682062] ? rtnl_newlink+0x6d0/0x1390 [ 106.686129] ? rtnl_link_unregister+0x270/0x270 [ 106.690775] ? finish_task_switch+0x178/0x650 [ 106.695291] ? finish_task_switch+0x14d/0x650 [ 106.699776] ? find_held_lock+0x36/0x1d0 [ 106.703836] ? __mutex_lock+0x8b7/0x14c0 [ 106.707891] ? lock_downgrade+0x7f0/0x7f0 [ 106.712030] ? do_raw_spin_unlock+0x16a/0x250 [ 106.716519] rtnetlink_rcv_msg+0x34c/0x9e0 [ 106.720729] ? rtnl_bridge_getlink+0x760/0x760 [ 106.725289] ? find_held_lock+0x36/0x1d0 [ 106.729334] netlink_rcv_skb+0x133/0x370 [ 106.733387] ? rtnl_bridge_getlink+0x760/0x760 [ 106.737950] ? netlink_ack+0xa00/0xa00 [ 106.741827] ? netlink_deliver_tap+0x8e/0x920 [ 106.746308] rtnetlink_rcv+0x10/0x20 [ 106.749997] netlink_unicast+0x40b/0x600 [ 106.754039] ? netlink_attachskb+0x6d0/0x6d0 [ 106.758441] netlink_sendmsg+0x730/0xbd0 [ 106.762485] ? netlink_unicast+0x600/0x600 [ 106.766706] ? selinux_socket_sendmsg+0x31/0x40 [ 106.771358] ? security_socket_sendmsg+0x6a/0xa0 [ 106.776088] ? netlink_unicast+0x600/0x600 [ 106.780313] sock_sendmsg+0xb5/0xf0 [ 106.783931] ___sys_sendmsg+0x625/0x920 [ 106.787986] ? trace_hardirqs_off+0x10/0x10 [ 106.792392] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 106.797232] ? find_held_lock+0x36/0x1d0 [ 106.801297] ? lock_downgrade+0x7f0/0x7f0 [ 106.805445] ? __fget+0x1ca/0x2f0 [ 106.808881] ? __fget_light+0x166/0x200 [ 106.812832] ? __fdget+0xe/0x10 [ 106.816107] ? sockfd_lookup_light+0x1c/0x150 [ 106.820579] __sys_sendmsg+0xc1/0x140 [ 106.824371] ? SyS_shutdown+0x180/0x180 [ 106.828359] ? __sb_end_write+0xa4/0xd0 [ 106.832321] ? mutex_unlock+0xd/0x10 [ 106.836040] ? do_syscall_64+0x4c/0x5b0 [ 106.840109] ? __sys_sendmsg+0x140/0x140 [ 106.844160] SyS_sendmsg+0xd/0x20 [ 106.847600] do_syscall_64+0x1c7/0x5b0 [ 106.851473] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 106.856308] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 106.861481] RIP: 0033:0x45b399 [ 106.864660] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 106.872353] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 106.879621] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 106.886872] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 106.894127] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 106.901384] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 106.914251] team0: Port device team_slave_0 removed [ 106.920147] batman_adv: batadv0: Adding interface: team_slave_0 [ 106.926543] batman_adv: batadv0: The MTU of interface team_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. [ 106.952230] batman_adv: batadv0: Not using interface team_slave_0 (retrying later): interface not active [ 106.962824] FAULT_INJECTION: forcing a failure. [ 106.962824] name failslab, interval 1, probability 0, space 0, times 0 [ 106.975370] CPU: 0 PID: 8191 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 106.983172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 106.992527] Call Trace: [ 106.995113] dump_stack+0xf7/0x13b [ 106.998650] should_fail.cold.3+0x105/0x14b [ 107.002983] should_failslab+0xba/0xf0 [ 107.006868] kmem_cache_alloc_node_trace+0x279/0x780 [ 107.011985] __kmalloc_node_track_caller+0x3c/0x70 [ 107.016913] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 107.021667] __alloc_skb+0xc1/0x500 [ 107.025289] ? skb_trim+0x160/0x160 [ 107.029018] ? if_nlmsg_size+0x2d9/0x6f0 [ 107.033076] rtmsg_ifinfo_build_skb+0x68/0x120 [ 107.037744] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 107.042573] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 107.047527] rtnetlink_event+0xc2/0x110 [ 107.051500] notifier_call_chain+0xd6/0x150 [ 107.055829] raw_notifier_call_chain+0x11/0x20 [ 107.060403] call_netdevice_notifiers_info+0x4b/0x60 [ 107.065489] __netdev_upper_dev_link+0x18e/0x1f0 [ 107.070229] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 107.074990] netdev_master_upper_dev_link+0x14/0x20 [ 107.080000] batadv_hardif_enable_interface+0x1f4/0xa10 [ 107.085357] batadv_softif_slave_add+0x7f/0xd0 [ 107.089923] do_set_master+0x163/0x1f0 [ 107.093807] do_setlink+0x9dd/0x2c50 [ 107.097498] ? find_held_lock+0x36/0x1d0 [ 107.101544] ? rtnl_register+0x20/0x20 [ 107.105440] ? load_balance+0xb38/0x2190 [ 107.110062] ? lock_downgrade+0x7f0/0x7f0 [ 107.114191] ? lock_pin_lock+0x340/0x340 [ 107.118905] ? __lock_acquire+0x6a4/0x4500 [ 107.123128] ? trace_hardirqs_off+0x10/0x10 [ 107.127498] ? __lock_is_held+0xb5/0x140 [ 107.131600] ? trace_hardirqs_off+0x10/0x10 [ 107.135917] rtnl_newlink+0xe0c/0x1390 [ 107.139814] ? rtnl_link_unregister+0x270/0x270 [ 107.144467] ? finish_task_switch+0x178/0x650 [ 107.148966] ? finish_task_switch+0x14d/0x650 [ 107.153528] ? find_held_lock+0x36/0x1d0 [ 107.157579] ? __mutex_lock+0x8b7/0x14c0 [ 107.161633] ? lock_downgrade+0x7f0/0x7f0 [ 107.165773] ? do_raw_spin_unlock+0x16a/0x250 [ 107.170280] rtnetlink_rcv_msg+0x34c/0x9e0 [ 107.174501] ? rtnl_bridge_getlink+0x760/0x760 [ 107.179064] ? find_held_lock+0x36/0x1d0 [ 107.183118] netlink_rcv_skb+0x133/0x370 [ 107.187171] ? rtnl_bridge_getlink+0x760/0x760 [ 107.191735] ? netlink_ack+0xa00/0xa00 [ 107.195602] ? netlink_deliver_tap+0x8e/0x920 [ 107.200235] rtnetlink_rcv+0x10/0x20 [ 107.203934] netlink_unicast+0x40b/0x600 [ 107.207978] ? netlink_attachskb+0x6d0/0x6d0 [ 107.212366] netlink_sendmsg+0x730/0xbd0 [ 107.216404] ? netlink_unicast+0x600/0x600 [ 107.220629] ? selinux_socket_sendmsg+0x31/0x40 [ 107.225280] ? security_socket_sendmsg+0x6a/0xa0 [ 107.230025] ? netlink_unicast+0x600/0x600 [ 107.234629] sock_sendmsg+0xb5/0xf0 [ 107.238263] ___sys_sendmsg+0x625/0x920 [ 107.242222] ? trace_hardirqs_off+0x10/0x10 [ 107.246527] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 107.251265] ? find_held_lock+0x36/0x1d0 [ 107.255310] ? lock_downgrade+0x7f0/0x7f0 [ 107.259459] ? __fget+0x1ca/0x2f0 [ 107.262906] ? __fget_light+0x166/0x200 [ 107.266878] ? __fdget+0xe/0x10 [ 107.270146] ? sockfd_lookup_light+0x1c/0x150 [ 107.274631] __sys_sendmsg+0xc1/0x140 [ 107.278426] ? SyS_shutdown+0x180/0x180 [ 107.282393] ? __sb_end_write+0xa4/0xd0 [ 107.287654] ? mutex_unlock+0xd/0x10 [ 107.291361] ? do_syscall_64+0x4c/0x5b0 [ 107.295322] ? __sys_sendmsg+0x140/0x140 [ 107.299356] SyS_sendmsg+0xd/0x20 [ 107.302796] do_syscall_64+0x1c7/0x5b0 [ 107.306685] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 107.311528] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 107.316694] RIP: 0033:0x45b399 [ 107.319864] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 107.327550] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 107.334803] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 107.342060] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 107.349377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 107.356656] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 107.368026] batman_adv: batadv0: Adding interface: veth1_to_team [ 107.374250] batman_adv: batadv0: The MTU of interface veth1_to_team 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. [ 107.399411] batman_adv: batadv0: Interface activated: veth1_to_team [ 107.406551] FAULT_INJECTION: forcing a failure. [ 107.406551] name failslab, interval 1, probability 0, space 0, times 0 [ 107.429887] CPU: 0 PID: 8195 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 107.437706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.447130] Call Trace: [ 107.449760] dump_stack+0xf7/0x13b [ 107.453292] should_fail.cold.3+0x105/0x14b [ 107.457600] should_failslab+0xba/0xf0 [ 107.461662] kmem_cache_alloc_node_trace+0x279/0x780 [ 107.466746] __kmalloc_node_track_caller+0x3c/0x70 [ 107.471667] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 107.476530] __alloc_skb+0xc1/0x500 [ 107.480130] ? skb_trim+0x160/0x160 [ 107.483730] ? if_nlmsg_size+0x2d9/0x6f0 [ 107.487767] rtmsg_ifinfo_build_skb+0x68/0x120 [ 107.492334] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 107.497168] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 107.502083] rtnetlink_event+0xc2/0x110 [ 107.506053] notifier_call_chain+0xd6/0x150 [ 107.510347] raw_notifier_call_chain+0x11/0x20 [ 107.514913] call_netdevice_notifiers_info+0x4b/0x60 [ 107.520176] __netdev_upper_dev_link+0x18e/0x1f0 [ 107.524991] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 107.529721] netdev_master_upper_dev_link+0x14/0x20 [ 107.534716] batadv_hardif_enable_interface+0x1f4/0xa10 [ 107.540077] batadv_softif_slave_add+0x7f/0xd0 [ 107.544648] do_set_master+0x163/0x1f0 [ 107.548512] do_setlink+0x9dd/0x2c50 [ 107.552211] ? find_held_lock+0x36/0x1d0 [ 107.556335] ? rtnl_register+0x20/0x20 [ 107.560204] ? load_balance+0xb38/0x2190 [ 107.564246] ? lock_downgrade+0x7f0/0x7f0 [ 107.568404] ? lock_pin_lock+0x340/0x340 [ 107.572457] ? __lock_acquire+0x6a4/0x4500 [ 107.576678] ? trace_hardirqs_off+0x10/0x10 [ 107.580981] ? __lock_is_held+0xb5/0x140 [ 107.585018] ? trace_hardirqs_off+0x10/0x10 [ 107.589349] rtnl_newlink+0xe0c/0x1390 [ 107.593231] ? rtnl_link_unregister+0x270/0x270 [ 107.597893] ? finish_task_switch+0x178/0x650 [ 107.602379] ? finish_task_switch+0x14d/0x650 [ 107.606849] ? find_held_lock+0x36/0x1d0 [ 107.610886] ? __mutex_lock+0x8b7/0x14c0 [ 107.614936] ? lock_downgrade+0x7f0/0x7f0 [ 107.619060] ? do_raw_spin_unlock+0x16a/0x250 [ 107.623562] rtnetlink_rcv_msg+0x34c/0x9e0 [ 107.627771] ? rtnl_bridge_getlink+0x760/0x760 [ 107.633717] ? find_held_lock+0x36/0x1d0 [ 107.637756] netlink_rcv_skb+0x133/0x370 [ 107.641893] ? rtnl_bridge_getlink+0x760/0x760 [ 107.646448] ? netlink_ack+0xa00/0xa00 [ 107.650334] ? netlink_deliver_tap+0x8e/0x920 [ 107.654808] rtnetlink_rcv+0x10/0x20 [ 107.658496] netlink_unicast+0x40b/0x600 [ 107.662561] ? netlink_attachskb+0x6d0/0x6d0 [ 107.667121] netlink_sendmsg+0x730/0xbd0 [ 107.671174] ? netlink_unicast+0x600/0x600 [ 107.675402] ? selinux_socket_sendmsg+0x31/0x40 [ 107.680045] ? security_socket_sendmsg+0x6a/0xa0 [ 107.684784] ? netlink_unicast+0x600/0x600 [ 107.688993] sock_sendmsg+0xb5/0xf0 [ 107.692595] ___sys_sendmsg+0x625/0x920 [ 107.696544] ? trace_hardirqs_off+0x10/0x10 [ 107.700838] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 107.705569] ? find_held_lock+0x36/0x1d0 [ 107.709619] ? lock_downgrade+0x7f0/0x7f0 [ 107.713746] ? __fget+0x1ca/0x2f0 [ 107.717191] ? __fget_light+0x166/0x200 [ 107.721138] ? __fdget+0xe/0x10 [ 107.724390] ? sockfd_lookup_light+0x1c/0x150 [ 107.728859] __sys_sendmsg+0xc1/0x140 [ 107.732635] ? SyS_shutdown+0x180/0x180 [ 107.736590] ? __sb_end_write+0xa4/0xd0 [ 107.740540] ? mutex_unlock+0xd/0x10 [ 107.744231] ? do_syscall_64+0x4c/0x5b0 [ 107.748186] ? __sys_sendmsg+0x140/0x140 [ 107.752226] SyS_sendmsg+0xd/0x20 [ 107.755682] do_syscall_64+0x1c7/0x5b0 [ 107.759561] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 107.764381] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 107.769545] RIP: 0033:0x45b399 [ 107.772710] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 107.780411] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 107.787656] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 107.794901] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 107.802147] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 107.809408] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 107.819259] batman_adv: batadv0: Adding interface: veth1_to_hsr [ 107.825704] batman_adv: batadv0: The MTU of interface veth1_to_hsr 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. [ 107.851461] batman_adv: batadv0: Interface activated: veth1_to_hsr [ 107.859885] FAULT_INJECTION: forcing a failure. [ 107.859885] name failslab, interval 1, probability 0, space 0, times 0 [ 107.882391] CPU: 1 PID: 8205 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 107.890210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.899560] Call Trace: [ 107.902145] dump_stack+0xf7/0x13b [ 107.905694] should_fail.cold.3+0x105/0x14b [ 107.910016] should_failslab+0xba/0xf0 [ 107.913903] kmem_cache_alloc_node_trace+0x279/0x780 [ 107.919013] __kmalloc_node_track_caller+0x3c/0x70 [ 107.923934] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 107.928669] __alloc_skb+0xc1/0x500 [ 107.932270] ? skb_trim+0x160/0x160 [ 107.935873] ? if_nlmsg_size+0x2d9/0x6f0 [ 107.939928] rtmsg_ifinfo_build_skb+0x68/0x120 [ 107.944494] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 107.949342] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 107.954269] rtnetlink_event+0xc2/0x110 [ 107.958246] notifier_call_chain+0xd6/0x150 [ 107.962576] raw_notifier_call_chain+0x11/0x20 [ 107.967152] call_netdevice_notifiers_info+0x4b/0x60 [ 107.972242] __netdev_upper_dev_link+0x18e/0x1f0 [ 107.976983] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 107.981727] netdev_master_upper_dev_link+0x14/0x20 [ 107.986743] batadv_hardif_enable_interface+0x1f4/0xa10 [ 107.992102] batadv_softif_slave_add+0x7f/0xd0 [ 107.996662] do_set_master+0x163/0x1f0 [ 108.000544] do_setlink+0x9dd/0x2c50 [ 108.004254] ? find_held_lock+0x36/0x1d0 [ 108.008292] ? rtnl_register+0x20/0x20 [ 108.012171] ? load_balance+0xb38/0x2190 [ 108.016227] ? lock_downgrade+0x7f0/0x7f0 [ 108.020364] ? lock_pin_lock+0x340/0x340 [ 108.024409] ? __lock_acquire+0x6a4/0x4500 [ 108.028623] ? trace_hardirqs_off+0x10/0x10 [ 108.032928] ? __lock_is_held+0xb5/0x140 [ 108.036976] ? trace_hardirqs_off+0x10/0x10 [ 108.041301] rtnl_newlink+0xe0c/0x1390 [ 108.045206] ? rtnl_link_unregister+0x270/0x270 [ 108.049867] ? finish_task_switch+0x178/0x650 [ 108.054355] ? finish_task_switch+0x14d/0x650 [ 108.058827] ? find_held_lock+0x36/0x1d0 [ 108.062882] ? __mutex_lock+0x8b7/0x14c0 [ 108.066945] ? lock_downgrade+0x7f0/0x7f0 [ 108.071076] ? do_raw_spin_unlock+0x16a/0x250 [ 108.075572] rtnetlink_rcv_msg+0x34c/0x9e0 [ 108.079792] ? rtnl_bridge_getlink+0x760/0x760 [ 108.084376] ? find_held_lock+0x36/0x1d0 [ 108.088440] netlink_rcv_skb+0x133/0x370 [ 108.092502] ? rtnl_bridge_getlink+0x760/0x760 [ 108.097065] ? netlink_ack+0xa00/0xa00 [ 108.100928] ? netlink_deliver_tap+0x8e/0x920 [ 108.105418] rtnetlink_rcv+0x10/0x20 [ 108.109107] netlink_unicast+0x40b/0x600 [ 108.113142] ? netlink_attachskb+0x6d0/0x6d0 [ 108.117528] netlink_sendmsg+0x730/0xbd0 [ 108.121565] ? netlink_unicast+0x600/0x600 [ 108.125778] ? selinux_socket_sendmsg+0x31/0x40 [ 108.130426] ? security_socket_sendmsg+0x6a/0xa0 [ 108.135268] ? netlink_unicast+0x600/0x600 [ 108.139478] sock_sendmsg+0xb5/0xf0 [ 108.143095] ___sys_sendmsg+0x625/0x920 [ 108.147052] ? trace_hardirqs_off+0x10/0x10 [ 108.151357] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 108.156089] ? find_held_lock+0x36/0x1d0 [ 108.160128] ? lock_downgrade+0x7f0/0x7f0 [ 108.164255] ? __fget+0x1ca/0x2f0 [ 108.167862] ? __fget_light+0x166/0x200 [ 108.171830] ? __fdget+0xe/0x10 [ 108.175085] ? sockfd_lookup_light+0x1c/0x150 [ 108.179555] __sys_sendmsg+0xc1/0x140 [ 108.183331] ? SyS_shutdown+0x180/0x180 [ 108.187283] ? __sb_end_write+0xa4/0xd0 [ 108.191235] ? mutex_unlock+0xd/0x10 [ 108.194944] ? do_syscall_64+0x4c/0x5b0 [ 108.198908] ? __sys_sendmsg+0x140/0x140 [ 108.202958] SyS_sendmsg+0xd/0x20 [ 108.206413] do_syscall_64+0x1c7/0x5b0 [ 108.210276] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 108.215099] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 108.220264] RIP: 0033:0x45b399 [ 108.223431] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 108.231120] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 108.238371] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 108.247630] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 108.254894] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 108.262158] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 108.275111] batman_adv: batadv0: Adding interface: veth1_to_team [ 108.281362] batman_adv: batadv0: The MTU of interface veth1_to_team 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. [ 108.306687] batman_adv: batadv0: Interface activated: veth1_to_team [ 108.314254] FAULT_INJECTION: forcing a failure. [ 108.314254] name failslab, interval 1, probability 0, space 0, times 0 [ 108.327388] CPU: 1 PID: 8207 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 108.335199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.344696] Call Trace: [ 108.347268] dump_stack+0xf7/0x13b [ 108.350795] should_fail.cold.3+0x105/0x14b [ 108.355105] should_failslab+0xba/0xf0 [ 108.358971] kmem_cache_alloc_node_trace+0x279/0x780 [ 108.364062] __kmalloc_node_track_caller+0x3c/0x70 [ 108.368978] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 108.373714] __alloc_skb+0xc1/0x500 [ 108.377317] ? skb_trim+0x160/0x160 [ 108.380937] ? if_nlmsg_size+0x2d9/0x6f0 [ 108.385044] rtmsg_ifinfo_build_skb+0x68/0x120 [ 108.389639] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 108.394474] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 108.399384] rtnetlink_event+0xc2/0x110 [ 108.403339] notifier_call_chain+0xd6/0x150 [ 108.407641] raw_notifier_call_chain+0x11/0x20 [ 108.412266] call_netdevice_notifiers_info+0x4b/0x60 [ 108.417708] __netdev_upper_dev_link+0x18e/0x1f0 [ 108.422444] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 108.427233] netdev_master_upper_dev_link+0x14/0x20 [ 108.432238] batadv_hardif_enable_interface+0x1f4/0xa10 [ 108.437595] batadv_softif_slave_add+0x7f/0xd0 [ 108.442164] do_set_master+0x163/0x1f0 [ 108.446029] do_setlink+0x9dd/0x2c50 [ 108.449730] ? find_held_lock+0x36/0x1d0 [ 108.453799] ? rtnl_register+0x20/0x20 [ 108.457672] ? load_balance+0xb38/0x2190 [ 108.461751] ? lock_downgrade+0x7f0/0x7f0 [ 108.465901] ? lock_pin_lock+0x340/0x340 [ 108.469961] ? __lock_acquire+0x6a4/0x4500 [ 108.474173] ? trace_hardirqs_off+0x10/0x10 [ 108.478499] ? __lock_is_held+0xb5/0x140 [ 108.482546] ? trace_hardirqs_off+0x10/0x10 [ 108.486860] rtnl_newlink+0xe0c/0x1390 [ 108.490738] ? rtnl_link_unregister+0x270/0x270 [ 108.495389] ? finish_task_switch+0x178/0x650 [ 108.499919] ? finish_task_switch+0x14d/0x650 [ 108.504398] ? find_held_lock+0x36/0x1d0 [ 108.508604] ? __mutex_lock+0x8b7/0x14c0 [ 108.512661] ? lock_downgrade+0x7f0/0x7f0 [ 108.516791] ? do_raw_spin_unlock+0x16a/0x250 [ 108.521287] rtnetlink_rcv_msg+0x34c/0x9e0 [ 108.527331] ? rtnl_bridge_getlink+0x760/0x760 [ 108.531892] ? find_held_lock+0x36/0x1d0 [ 108.535939] netlink_rcv_skb+0x133/0x370 [ 108.539995] ? rtnl_bridge_getlink+0x760/0x760 [ 108.544561] ? netlink_ack+0xa00/0xa00 [ 108.548529] ? netlink_deliver_tap+0x8e/0x920 [ 108.553014] rtnetlink_rcv+0x10/0x20 [ 108.556707] netlink_unicast+0x40b/0x600 [ 108.560821] ? netlink_attachskb+0x6d0/0x6d0 [ 108.565243] netlink_sendmsg+0x730/0xbd0 [ 108.569364] ? netlink_unicast+0x600/0x600 [ 108.573578] ? selinux_socket_sendmsg+0x31/0x40 [ 108.578225] ? security_socket_sendmsg+0x6a/0xa0 [ 108.583119] ? netlink_unicast+0x600/0x600 [ 108.587444] sock_sendmsg+0xb5/0xf0 [ 108.591176] ___sys_sendmsg+0x625/0x920 [ 108.595354] ? trace_hardirqs_off+0x10/0x10 [ 108.599771] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 108.604516] ? find_held_lock+0x36/0x1d0 [ 108.609348] ? lock_downgrade+0x7f0/0x7f0 [ 108.613496] ? __fget+0x1ca/0x2f0 [ 108.617094] ? __fget_light+0x166/0x200 [ 108.621050] ? __fdget+0xe/0x10 [ 108.624309] ? sockfd_lookup_light+0x1c/0x150 [ 108.628785] __sys_sendmsg+0xc1/0x140 [ 108.632565] ? SyS_shutdown+0x180/0x180 [ 108.636521] ? __sb_end_write+0xa4/0xd0 [ 108.640559] ? mutex_unlock+0xd/0x10 [ 108.644250] ? do_syscall_64+0x4c/0x5b0 [ 108.648269] ? __sys_sendmsg+0x140/0x140 [ 108.652318] SyS_sendmsg+0xd/0x20 [ 108.655756] do_syscall_64+0x1c7/0x5b0 [ 108.659629] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 108.664460] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 108.669703] RIP: 0033:0x45b399 [ 108.672869] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 2020/06/04 21:06:27 executed programs: 112 [ 108.680569] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 108.687817] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 108.695079] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 108.702673] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 108.709935] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 108.720674] batman_adv: batadv0: Adding interface: veth0_to_batadv [ 108.727104] batman_adv: batadv0: The MTU of interface veth0_to_batadv 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. [ 108.752717] batman_adv: batadv0: Interface activated: veth0_to_batadv [ 108.762545] FAULT_INJECTION: forcing a failure. [ 108.762545] name failslab, interval 1, probability 0, space 0, times 0 [ 108.773793] CPU: 1 PID: 8213 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 108.781584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.790932] Call Trace: [ 108.793516] dump_stack+0xf7/0x13b [ 108.797057] should_fail.cold.3+0x105/0x14b [ 108.801378] should_failslab+0xba/0xf0 [ 108.805264] kmem_cache_alloc_node_trace+0x5a/0x780 [ 108.810279] __kmalloc_node_track_caller+0x3c/0x70 [ 108.815204] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 108.819966] __alloc_skb+0xc1/0x500 [ 108.823593] ? skb_trim+0x160/0x160 [ 108.827219] ? call_fib6_notifiers+0x3c/0x60 [ 108.831630] inet6_rt_notify+0xe0/0x290 [ 108.835600] fib6_del+0x89d/0xd80 [ 108.839055] fib6_clean_node+0x1d8/0x3f0 [ 108.843103] ? fib6_del+0xd80/0xd80 [ 108.846710] ? trace_hardirqs_on_caller+0x19e/0x580 [ 108.851703] ? fib6_walker_link+0xe2/0x120 [ 108.855922] fib6_walk_continue+0x1bb/0x920 [ 108.860254] ? _raw_write_unlock_bh+0x30/0x40 [ 108.864746] fib6_walk+0x90/0xe0 [ 108.868156] fib6_clean_tree+0x8f/0xb0 [ 108.872030] ? fib6_walk+0xe0/0xe0 [ 108.875552] ? fib6_del+0xd80/0xd80 [ 108.879163] ? fib6_clean_tree+0xb0/0xb0 [ 108.883211] ? fib6_remove_prefsrc+0x250/0x250 [ 108.887780] ? _raw_write_lock_bh+0x39/0x40 [ 108.892077] ? __fib6_clean_all+0xc5/0x1d0 [ 108.896287] __fib6_clean_all+0xde/0x1d0 [ 108.900327] ? fib6_remove_prefsrc+0x250/0x250 [ 108.904937] fib6_clean_all+0xe/0x10 [ 108.908626] rt6_ifdown+0x87/0x560 [ 108.912148] ? __lock_acquire+0x6a4/0x4500 [ 108.916390] ? rt6_clean_tohost+0x20/0x20 [ 108.920516] addrconf_ifdown+0xbb/0x1320 [ 108.924565] ? trace_hardirqs_off+0x10/0x10 [ 108.928874] ? add_addr+0x150/0x150 [ 108.932488] addrconf_notify+0x555/0x1b10 [ 108.936620] ? lock_downgrade+0x7f0/0x7f0 [ 108.940751] ? inet6_ifinfo_notify+0x100/0x100 [ 108.945314] ? nfqnl_rcv_dev_event+0x227/0x3b0 [ 108.949880] notifier_call_chain+0xd6/0x150 [ 108.954180] raw_notifier_call_chain+0x11/0x20 [ 108.958740] call_netdevice_notifiers_info+0x4b/0x60 [ 108.963818] dev_close_many+0x29b/0x610 [ 108.967778] ? list_netdevice+0x4b0/0x4b0 [ 108.971911] ? mark_held_locks+0xc7/0x130 [ 108.976031] ? dev_mc_unsync+0x165/0x1a5 [ 108.980073] dev_close.part.90+0xe5/0x190 [ 108.984203] ? dev_close_many+0x610/0x610 [ 108.989215] ? dev_mc_unsync+0x165/0x1a5 [ 108.993261] ? __local_bh_enable_ip+0x9c/0x180 [ 108.997828] ? _raw_spin_unlock_bh+0x30/0x40 [ 109.002221] dev_close+0x40/0x50 [ 109.005563] team_port_del+0x2c0/0x770 [ 109.009430] team_del_slave+0x34/0x70 [ 109.013212] do_set_master+0xb6/0x1f0 [ 109.017188] do_setlink+0x9dd/0x2c50 [ 109.020899] ? find_held_lock+0x36/0x1d0 [ 109.024960] ? rtnl_register+0x20/0x20 [ 109.028847] ? load_balance+0xb38/0x2190 [ 109.032897] ? lock_downgrade+0x7f0/0x7f0 [ 109.037029] ? lock_pin_lock+0x340/0x340 [ 109.041120] ? __lock_acquire+0x6a4/0x4500 [ 109.045338] ? trace_hardirqs_off+0x10/0x10 [ 109.049664] ? __lock_is_held+0xb5/0x140 [ 109.053724] ? trace_hardirqs_off+0x10/0x10 [ 109.058034] rtnl_newlink+0xe0c/0x1390 [ 109.062959] ? rtnl_newlink+0x6d0/0x1390 [ 109.067007] ? rtnl_link_unregister+0x270/0x270 [ 109.071669] ? finish_task_switch+0x178/0x650 [ 109.076159] ? finish_task_switch+0x14d/0x650 [ 109.080653] ? find_held_lock+0x36/0x1d0 [ 109.084707] ? __mutex_lock+0x8b7/0x14c0 [ 109.088745] ? lock_downgrade+0x7f0/0x7f0 [ 109.092890] ? do_raw_spin_unlock+0x16a/0x250 [ 109.097540] rtnetlink_rcv_msg+0x34c/0x9e0 [ 109.101761] ? rtnl_bridge_getlink+0x760/0x760 [ 109.106330] ? find_held_lock+0x36/0x1d0 [ 109.110416] netlink_rcv_skb+0x133/0x370 [ 109.114472] ? rtnl_bridge_getlink+0x760/0x760 [ 109.119035] ? netlink_ack+0xa00/0xa00 [ 109.123008] ? netlink_deliver_tap+0x8e/0x920 [ 109.127697] rtnetlink_rcv+0x10/0x20 [ 109.131459] netlink_unicast+0x40b/0x600 [ 109.135503] ? netlink_attachskb+0x6d0/0x6d0 [ 109.139893] netlink_sendmsg+0x730/0xbd0 [ 109.143985] ? netlink_unicast+0x600/0x600 [ 109.148233] ? selinux_socket_sendmsg+0x31/0x40 [ 109.152888] ? security_socket_sendmsg+0x6a/0xa0 [ 109.157688] ? netlink_unicast+0x600/0x600 [ 109.161953] sock_sendmsg+0xb5/0xf0 [ 109.165569] ___sys_sendmsg+0x625/0x920 [ 109.169684] ? trace_hardirqs_off+0x10/0x10 [ 109.173987] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 109.178748] ? find_held_lock+0x36/0x1d0 [ 109.182799] ? lock_downgrade+0x7f0/0x7f0 [ 109.186942] ? __fget+0x1ca/0x2f0 [ 109.190379] ? __fget_light+0x166/0x200 [ 109.194400] ? __fdget+0xe/0x10 [ 109.197684] ? sockfd_lookup_light+0x1c/0x150 [ 109.202173] __sys_sendmsg+0xc1/0x140 [ 109.205949] ? SyS_shutdown+0x180/0x180 [ 109.209919] ? __sb_end_write+0xa4/0xd0 [ 109.213878] ? mutex_unlock+0xd/0x10 [ 109.217569] ? do_syscall_64+0x4c/0x5b0 [ 109.221524] ? __sys_sendmsg+0x140/0x140 [ 109.225561] SyS_sendmsg+0xd/0x20 [ 109.229003] do_syscall_64+0x1c7/0x5b0 [ 109.232881] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 109.237710] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 109.242999] RIP: 0033:0x45b399 [ 109.246235] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 109.253923] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 109.261184] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 109.268437] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 109.275690] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 109.282949] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 109.294322] team0: Port device team_slave_1 removed [ 109.300193] batman_adv: batadv0: Adding interface: team_slave_1 [ 109.306428] batman_adv: batadv0: The MTU of interface team_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. [ 109.331518] batman_adv: batadv0: Not using interface team_slave_1 (retrying later): interface not active [ 109.352095] FAULT_INJECTION: forcing a failure. [ 109.352095] name failslab, interval 1, probability 0, space 0, times 0 [ 109.368416] CPU: 0 PID: 8215 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 109.376229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.385667] Call Trace: [ 109.388251] dump_stack+0xf7/0x13b [ 109.391791] should_fail.cold.3+0x105/0x14b [ 109.396115] should_failslab+0xba/0xf0 [ 109.400000] kmem_cache_alloc_node_trace+0x279/0x780 [ 109.405147] __kmalloc_node_track_caller+0x3c/0x70 [ 109.410068] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 109.414820] __alloc_skb+0xc1/0x500 [ 109.418433] ? skb_trim+0x160/0x160 [ 109.422204] ? if_nlmsg_size+0x2d9/0x6f0 [ 109.426284] rtmsg_ifinfo_build_skb+0x68/0x120 [ 109.430862] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 109.435697] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 109.440606] rtnetlink_event+0xc2/0x110 [ 109.444581] notifier_call_chain+0xd6/0x150 [ 109.448882] raw_notifier_call_chain+0x11/0x20 [ 109.453447] call_netdevice_notifiers_info+0x4b/0x60 [ 109.458542] __netdev_upper_dev_link+0x18e/0x1f0 [ 109.463383] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 109.468127] netdev_master_upper_dev_link+0x14/0x20 [ 109.473126] batadv_hardif_enable_interface+0x1f4/0xa10 [ 109.478489] batadv_softif_slave_add+0x7f/0xd0 [ 109.483071] do_set_master+0x163/0x1f0 [ 109.486943] do_setlink+0x9dd/0x2c50 [ 109.490661] ? find_held_lock+0x36/0x1d0 [ 109.494717] ? rtnl_register+0x20/0x20 [ 109.498594] ? load_balance+0xb38/0x2190 [ 109.502641] ? lock_downgrade+0x7f0/0x7f0 [ 109.506765] ? lock_pin_lock+0x340/0x340 [ 109.510833] ? __lock_acquire+0x6a4/0x4500 [ 109.515064] ? trace_hardirqs_off+0x10/0x10 [ 109.519384] ? __lock_is_held+0xb5/0x140 [ 109.523453] ? trace_hardirqs_off+0x10/0x10 [ 109.527875] rtnl_newlink+0xe0c/0x1390 [ 109.531889] ? rtnl_link_unregister+0x270/0x270 [ 109.536549] ? finish_task_switch+0x178/0x650 [ 109.541027] ? finish_task_switch+0x14d/0x650 [ 109.545504] ? find_held_lock+0x36/0x1d0 [ 109.549986] ? __mutex_lock+0x8b7/0x14c0 [ 109.554038] ? lock_downgrade+0x7f0/0x7f0 [ 109.558191] ? do_raw_spin_unlock+0x16a/0x250 [ 109.562699] rtnetlink_rcv_msg+0x34c/0x9e0 [ 109.566922] ? rtnl_bridge_getlink+0x760/0x760 [ 109.571487] ? find_held_lock+0x36/0x1d0 [ 109.575532] netlink_rcv_skb+0x133/0x370 [ 109.579665] ? rtnl_bridge_getlink+0x760/0x760 [ 109.584230] ? netlink_ack+0xa00/0xa00 [ 109.588122] ? netlink_deliver_tap+0x8e/0x920 [ 109.592605] rtnetlink_rcv+0x10/0x20 [ 109.596302] netlink_unicast+0x40b/0x600 [ 109.600356] ? netlink_attachskb+0x6d0/0x6d0 [ 109.604772] netlink_sendmsg+0x730/0xbd0 [ 109.608834] ? netlink_unicast+0x600/0x600 [ 109.613486] ? selinux_socket_sendmsg+0x31/0x40 [ 109.618145] ? security_socket_sendmsg+0x6a/0xa0 [ 109.622885] ? netlink_unicast+0x600/0x600 [ 109.627119] sock_sendmsg+0xb5/0xf0 [ 109.630734] ___sys_sendmsg+0x625/0x920 [ 109.634700] ? trace_hardirqs_off+0x10/0x10 [ 109.639004] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 109.643827] ? find_held_lock+0x36/0x1d0 [ 109.647867] ? lock_downgrade+0x7f0/0x7f0 [ 109.652006] ? __fget+0x1ca/0x2f0 [ 109.655446] ? __fget_light+0x166/0x200 [ 109.659414] ? __fdget+0xe/0x10 [ 109.662701] ? sockfd_lookup_light+0x1c/0x150 [ 109.667180] __sys_sendmsg+0xc1/0x140 [ 109.670960] ? SyS_shutdown+0x180/0x180 [ 109.674920] ? __sb_end_write+0xa4/0xd0 [ 109.678881] ? mutex_unlock+0xd/0x10 [ 109.682582] ? do_syscall_64+0x4c/0x5b0 [ 109.686557] ? __sys_sendmsg+0x140/0x140 [ 109.690623] SyS_sendmsg+0xd/0x20 [ 109.694149] do_syscall_64+0x1c7/0x5b0 [ 109.698038] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 109.702862] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 109.708046] RIP: 0033:0x45b399 [ 109.711229] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 109.718916] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 109.726164] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 109.733422] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 109.740678] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 109.747935] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 109.775486] batman_adv: batadv0: Adding interface: veth0_to_batadv [ 109.782671] batman_adv: batadv0: The MTU of interface veth0_to_batadv 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. [ 109.808200] batman_adv: batadv0: Interface activated: veth0_to_batadv [ 109.817127] FAULT_INJECTION: forcing a failure. [ 109.817127] name failslab, interval 1, probability 0, space 0, times 0 [ 109.844186] CPU: 0 PID: 8221 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 109.852009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.861361] Call Trace: [ 109.863948] dump_stack+0xf7/0x13b [ 109.867490] should_fail.cold.3+0x105/0x14b [ 109.871819] should_failslab+0xba/0xf0 [ 109.875741] kmem_cache_alloc_node_trace+0x279/0x780 [ 109.880855] __kmalloc_node_track_caller+0x3c/0x70 [ 109.885779] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 109.890544] __alloc_skb+0xc1/0x500 [ 109.894159] ? skb_trim+0x160/0x160 [ 109.897779] ? if_nlmsg_size+0x2d9/0x6f0 [ 109.901816] rtmsg_ifinfo_build_skb+0x68/0x120 [ 109.906381] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 109.911223] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 109.916130] rtnetlink_event+0xc2/0x110 [ 109.920085] notifier_call_chain+0xd6/0x150 [ 109.924395] raw_notifier_call_chain+0x11/0x20 [ 109.928972] call_netdevice_notifiers_info+0x4b/0x60 [ 109.934064] __netdev_upper_dev_link+0x18e/0x1f0 [ 109.938805] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 109.943645] netdev_master_upper_dev_link+0x14/0x20 [ 109.948649] batadv_hardif_enable_interface+0x1f4/0xa10 [ 109.954004] batadv_softif_slave_add+0x7f/0xd0 [ 109.958570] do_set_master+0x163/0x1f0 [ 109.962439] do_setlink+0x9dd/0x2c50 [ 109.966160] ? rtnl_register+0x20/0x20 [ 109.970026] ? trace_hardirqs_off+0x10/0x10 [ 109.974330] ? trace_hardirqs_on+0x10/0x10 [ 109.978548] ? trace_hardirqs_off+0x10/0x10 [ 109.982869] ? find_held_lock+0x36/0x1d0 [ 109.986915] ? find_held_lock+0x36/0x1d0 [ 109.990956] ? free_one_page+0x9c4/0x1050 [ 109.995086] ? lock_downgrade+0x7f0/0x7f0 [ 109.999239] ? trace_hardirqs_off+0xd/0x10 [ 110.003468] ? bad_range+0x121/0x3a0 [ 110.007159] ? __this_cpu_preempt_check+0x13/0x20 [ 110.011983] ? do_raw_spin_unlock+0x16a/0x250 [ 110.016479] rtnl_newlink+0xe0c/0x1390 [ 110.020358] ? rtnl_link_unregister+0x270/0x270 [ 110.025004] ? finish_task_switch+0x448/0x650 [ 110.029485] ? find_held_lock+0x36/0x1d0 [ 110.033539] ? __mutex_lock+0x8b7/0x14c0 [ 110.037584] ? lock_downgrade+0x7f0/0x7f0 [ 110.041711] ? do_raw_spin_unlock+0x16a/0x250 [ 110.046202] rtnetlink_rcv_msg+0x34c/0x9e0 [ 110.050414] ? rtnl_bridge_getlink+0x760/0x760 [ 110.054983] ? find_held_lock+0x36/0x1d0 [ 110.059067] netlink_rcv_skb+0x133/0x370 [ 110.063116] ? rtnl_bridge_getlink+0x760/0x760 [ 110.067681] ? netlink_ack+0xa00/0xa00 [ 110.071569] ? netlink_deliver_tap+0x8e/0x920 [ 110.076129] rtnetlink_rcv+0x10/0x20 [ 110.079820] netlink_unicast+0x40b/0x600 [ 110.083946] ? netlink_attachskb+0x6d0/0x6d0 [ 110.088399] netlink_sendmsg+0x730/0xbd0 [ 110.092453] ? netlink_unicast+0x600/0x600 [ 110.096677] ? selinux_socket_sendmsg+0x31/0x40 [ 110.101455] ? security_socket_sendmsg+0x6a/0xa0 [ 110.106194] ? netlink_unicast+0x600/0x600 [ 110.110412] sock_sendmsg+0xb5/0xf0 [ 110.114028] ___sys_sendmsg+0x625/0x920 [ 110.117995] ? trace_hardirqs_off+0x10/0x10 [ 110.123533] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 110.128300] ? find_held_lock+0x36/0x1d0 [ 110.132379] ? lock_downgrade+0x7f0/0x7f0 [ 110.136526] ? __fget+0x1ca/0x2f0 [ 110.139963] ? __fget_light+0x166/0x200 [ 110.143914] ? __fdget+0xe/0x10 [ 110.147174] ? sockfd_lookup_light+0x1c/0x150 [ 110.151658] __sys_sendmsg+0xc1/0x140 [ 110.155447] ? SyS_shutdown+0x180/0x180 [ 110.159405] ? __sb_end_write+0xa4/0xd0 [ 110.163370] ? mutex_unlock+0xd/0x10 [ 110.167064] ? do_syscall_64+0x4c/0x5b0 [ 110.171020] ? __sys_sendmsg+0x140/0x140 [ 110.175064] SyS_sendmsg+0xd/0x20 [ 110.178501] do_syscall_64+0x1c7/0x5b0 [ 110.182369] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.187228] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 110.192397] RIP: 0033:0x45b399 [ 110.195571] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 110.203254] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 110.210501] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 110.217748] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 110.224995] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 110.232247] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 110.253924] batman_adv: batadv0: Adding interface: hsr0 [ 110.259309] batman_adv: batadv0: The MTU of interface hsr0 is too small (1494) 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. [ 110.283708] batman_adv: batadv0: Interface activated: hsr0 [ 110.290059] FAULT_INJECTION: forcing a failure. [ 110.290059] name failslab, interval 1, probability 0, space 0, times 0 [ 110.312576] CPU: 1 PID: 8228 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 110.320394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.329833] Call Trace: [ 110.332420] dump_stack+0xf7/0x13b [ 110.336036] should_fail.cold.3+0x105/0x14b [ 110.340398] should_failslab+0xba/0xf0 [ 110.344274] kmem_cache_alloc_node_trace+0x279/0x780 [ 110.349358] __kmalloc_node_track_caller+0x3c/0x70 [ 110.354274] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 110.359010] __alloc_skb+0xc1/0x500 [ 110.362616] ? skb_trim+0x160/0x160 [ 110.366237] ? if_nlmsg_size+0x2d9/0x6f0 [ 110.370276] rtmsg_ifinfo_build_skb+0x68/0x120 [ 110.374857] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 110.379675] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 110.384598] rtnetlink_event+0xc2/0x110 [ 110.388556] notifier_call_chain+0xd6/0x150 [ 110.393051] raw_notifier_call_chain+0x11/0x20 [ 110.397617] call_netdevice_notifiers_info+0x4b/0x60 [ 110.402818] __netdev_upper_dev_link+0x18e/0x1f0 [ 110.407560] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 110.412306] netdev_master_upper_dev_link+0x14/0x20 [ 110.417676] batadv_hardif_enable_interface+0x1f4/0xa10 [ 110.423152] batadv_softif_slave_add+0x7f/0xd0 [ 110.427728] do_set_master+0x163/0x1f0 [ 110.431605] do_setlink+0x9dd/0x2c50 [ 110.435369] ? find_held_lock+0x36/0x1d0 [ 110.439413] ? rtnl_register+0x20/0x20 [ 110.443281] ? load_balance+0xb38/0x2190 [ 110.447326] ? lock_downgrade+0x7f0/0x7f0 [ 110.451457] ? lock_pin_lock+0x340/0x340 [ 110.455502] ? __lock_acquire+0x6a4/0x4500 [ 110.459711] ? trace_hardirqs_off+0x10/0x10 [ 110.464028] ? __lock_is_held+0xb5/0x140 [ 110.468070] ? trace_hardirqs_off+0x10/0x10 [ 110.472388] rtnl_newlink+0xe0c/0x1390 [ 110.476265] ? rtnl_link_unregister+0x270/0x270 [ 110.480924] ? finish_task_switch+0x178/0x650 [ 110.485408] ? finish_task_switch+0x14d/0x650 [ 110.489956] ? find_held_lock+0x36/0x1d0 [ 110.494063] ? __mutex_lock+0x8b7/0x14c0 [ 110.498102] ? lock_downgrade+0x7f0/0x7f0 [ 110.502265] ? do_raw_spin_unlock+0x16a/0x250 [ 110.506780] rtnetlink_rcv_msg+0x34c/0x9e0 [ 110.511016] ? rtnl_bridge_getlink+0x760/0x760 [ 110.515579] ? find_held_lock+0x36/0x1d0 [ 110.519641] netlink_rcv_skb+0x133/0x370 [ 110.523937] ? rtnl_bridge_getlink+0x760/0x760 [ 110.528638] ? netlink_ack+0xa00/0xa00 [ 110.532684] ? netlink_deliver_tap+0x8e/0x920 [ 110.537169] rtnetlink_rcv+0x10/0x20 [ 110.540865] netlink_unicast+0x40b/0x600 [ 110.545017] ? netlink_attachskb+0x6d0/0x6d0 [ 110.549527] netlink_sendmsg+0x730/0xbd0 [ 110.553574] ? netlink_unicast+0x600/0x600 [ 110.557806] ? selinux_socket_sendmsg+0x31/0x40 [ 110.562453] ? security_socket_sendmsg+0x6a/0xa0 [ 110.567203] ? netlink_unicast+0x600/0x600 [ 110.571414] sock_sendmsg+0xb5/0xf0 [ 110.575045] ___sys_sendmsg+0x625/0x920 [ 110.579008] ? trace_hardirqs_off+0x10/0x10 [ 110.583316] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 110.588072] ? find_held_lock+0x36/0x1d0 [ 110.592121] ? lock_downgrade+0x7f0/0x7f0 [ 110.596256] ? __fget+0x1ca/0x2f0 [ 110.599869] ? __fget_light+0x166/0x200 [ 110.603844] ? __fdget+0xe/0x10 [ 110.607103] ? sockfd_lookup_light+0x1c/0x150 [ 110.611596] __sys_sendmsg+0xc1/0x140 [ 110.615377] ? SyS_shutdown+0x180/0x180 [ 110.619348] ? __sb_end_write+0xa4/0xd0 [ 110.623300] ? mutex_unlock+0xd/0x10 [ 110.627005] ? do_syscall_64+0x4c/0x5b0 [ 110.630955] ? __sys_sendmsg+0x140/0x140 [ 110.634991] SyS_sendmsg+0xd/0x20 [ 110.638431] do_syscall_64+0x1c7/0x5b0 [ 110.642305] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 110.647141] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 110.652430] RIP: 0033:0x45b399 [ 110.655614] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 110.663322] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 110.670581] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 110.677851] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 110.685113] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 110.692361] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 110.701408] batman_adv: batadv0: Adding interface: veth0_to_batadv [ 110.707975] batman_adv: batadv0: The MTU of interface veth0_to_batadv 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. [ 110.733303] batman_adv: batadv0: Interface activated: veth0_to_batadv [ 110.740740] FAULT_INJECTION: forcing a failure. [ 110.740740] name failslab, interval 1, probability 0, space 0, times 0 [ 110.763626] CPU: 1 PID: 8232 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 110.771446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.780799] Call Trace: [ 110.783392] dump_stack+0xf7/0x13b [ 110.786934] should_fail.cold.3+0x105/0x14b [ 110.791241] should_failslab+0xba/0xf0 [ 110.795124] kmem_cache_alloc_node_trace+0x279/0x780 [ 110.800226] __kmalloc_node_track_caller+0x3c/0x70 [ 110.805140] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 110.809893] __alloc_skb+0xc1/0x500 [ 110.813740] ? skb_trim+0x160/0x160 [ 110.817470] ? if_nlmsg_size+0x2d9/0x6f0 [ 110.821524] rtmsg_ifinfo_build_skb+0x68/0x120 [ 110.827210] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 110.832059] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 110.836984] rtnetlink_event+0xc2/0x110 [ 110.840937] notifier_call_chain+0xd6/0x150 [ 110.845301] raw_notifier_call_chain+0x11/0x20 [ 110.850013] call_netdevice_notifiers_info+0x4b/0x60 [ 110.855152] __netdev_upper_dev_link+0x18e/0x1f0 [ 110.860089] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 110.864824] netdev_master_upper_dev_link+0x14/0x20 [ 110.869869] batadv_hardif_enable_interface+0x1f4/0xa10 [ 110.875209] batadv_softif_slave_add+0x7f/0xd0 [ 110.879770] do_set_master+0x163/0x1f0 [ 110.883635] do_setlink+0x9dd/0x2c50 [ 110.887334] ? __lock_acquire+0x6a4/0x4500 [ 110.891562] ? rtnl_register+0x20/0x20 [ 110.895440] ? trace_hardirqs_on+0x10/0x10 [ 110.899746] ? trace_hardirqs_off+0x10/0x10 [ 110.904044] ? __lock_acquire+0x6a4/0x4500 [ 110.908338] ? trace_hardirqs_off+0x10/0x10 [ 110.912722] ? trace_hardirqs_off+0x10/0x10 [ 110.917019] ? __lock_is_held+0xb5/0x140 [ 110.921056] ? trace_hardirqs_off+0x10/0x10 [ 110.925350] ? trace_hardirqs_off+0x10/0x10 [ 110.929649] rtnl_newlink+0xe0c/0x1390 [ 110.933529] ? rtnl_link_unregister+0x270/0x270 [ 110.938170] ? finish_task_switch+0x178/0x650 [ 110.942637] ? finish_task_switch+0x14d/0x650 [ 110.947107] ? find_held_lock+0x36/0x1d0 [ 110.951145] ? __mutex_lock+0x8b7/0x14c0 [ 110.955182] ? lock_downgrade+0x7f0/0x7f0 [ 110.959323] ? do_raw_spin_unlock+0x16a/0x250 [ 110.963805] rtnetlink_rcv_msg+0x34c/0x9e0 [ 110.968015] ? rtnl_bridge_getlink+0x760/0x760 [ 110.972569] ? find_held_lock+0x36/0x1d0 [ 110.976607] netlink_rcv_skb+0x133/0x370 [ 110.980654] ? rtnl_bridge_getlink+0x760/0x760 [ 110.985237] ? netlink_ack+0xa00/0xa00 [ 110.989563] ? netlink_deliver_tap+0x8e/0x920 [ 110.994040] rtnetlink_rcv+0x10/0x20 [ 110.997729] netlink_unicast+0x40b/0x600 [ 111.009084] ? netlink_attachskb+0x6d0/0x6d0 [ 111.013487] netlink_sendmsg+0x730/0xbd0 [ 111.017541] ? netlink_unicast+0x600/0x600 [ 111.021849] ? selinux_socket_sendmsg+0x31/0x40 [ 111.026509] ? security_socket_sendmsg+0x6a/0xa0 [ 111.031240] ? netlink_unicast+0x600/0x600 [ 111.035475] sock_sendmsg+0xb5/0xf0 [ 111.039093] ___sys_sendmsg+0x625/0x920 [ 111.043047] ? trace_hardirqs_off+0x10/0x10 [ 111.047357] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 111.052091] ? find_held_lock+0x36/0x1d0 [ 111.056150] ? lock_downgrade+0x7f0/0x7f0 [ 111.060275] ? __fget+0x1ca/0x2f0 [ 111.063707] ? __fget_light+0x166/0x200 [ 111.067655] ? __fdget+0xe/0x10 [ 111.070907] ? sockfd_lookup_light+0x1c/0x150 [ 111.075392] __sys_sendmsg+0xc1/0x140 [ 111.079166] ? SyS_shutdown+0x180/0x180 [ 111.083148] ? __sb_end_write+0xa4/0xd0 [ 111.087101] ? mutex_unlock+0xd/0x10 [ 111.090799] ? do_syscall_64+0x4c/0x5b0 [ 111.094842] ? __sys_sendmsg+0x140/0x140 [ 111.098879] SyS_sendmsg+0xd/0x20 [ 111.102323] do_syscall_64+0x1c7/0x5b0 [ 111.106183] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 111.111004] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 111.116169] RIP: 0033:0x45b399 [ 111.119332] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 111.127027] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 111.134287] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 111.141533] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 111.148790] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 111.156035] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 111.165369] batman_adv: batadv0: Adding interface: veth1_to_batadv [ 111.171780] batman_adv: batadv0: The MTU of interface veth1_to_batadv 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. [ 111.198487] batman_adv: batadv0: Interface activated: veth1_to_batadv [ 111.207769] FAULT_INJECTION: forcing a failure. [ 111.207769] name failslab, interval 1, probability 0, space 0, times 0 [ 111.223076] CPU: 1 PID: 8240 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 111.230876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.240224] Call Trace: [ 111.242810] dump_stack+0xf7/0x13b [ 111.246348] should_fail.cold.3+0x105/0x14b [ 111.250682] should_failslab+0xba/0xf0 [ 111.254566] kmem_cache_alloc_node_trace+0x279/0x780 [ 111.259767] __kmalloc_node_track_caller+0x3c/0x70 [ 111.265136] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 111.269891] __alloc_skb+0xc1/0x500 [ 111.273513] ? skb_trim+0x160/0x160 [ 111.277148] ? if_nlmsg_size+0x2d9/0x6f0 [ 111.281220] rtmsg_ifinfo_build_skb+0x68/0x120 [ 111.285797] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 111.290617] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 111.295542] rtnetlink_event+0xc2/0x110 [ 111.299498] notifier_call_chain+0xd6/0x150 [ 111.303807] raw_notifier_call_chain+0x11/0x20 [ 111.308538] call_netdevice_notifiers_info+0x4b/0x60 [ 111.313614] __netdev_upper_dev_link+0x18e/0x1f0 [ 111.318345] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 111.323082] netdev_master_upper_dev_link+0x14/0x20 [ 111.328074] batadv_hardif_enable_interface+0x1f4/0xa10 [ 111.333429] batadv_softif_slave_add+0x7f/0xd0 [ 111.338006] do_set_master+0x163/0x1f0 [ 111.341883] do_setlink+0x9dd/0x2c50 [ 111.345573] ? rtnl_register+0x20/0x20 [ 111.349433] ? trace_hardirqs_off+0x10/0x10 [ 111.353734] ? trace_hardirqs_on+0x10/0x10 [ 111.357979] ? trace_hardirqs_off+0x10/0x10 [ 111.362272] ? find_held_lock+0x36/0x1d0 [ 111.366318] ? find_held_lock+0x36/0x1d0 [ 111.370360] ? free_one_page+0x9c4/0x1050 [ 111.374503] ? lock_downgrade+0x7f0/0x7f0 [ 111.378644] ? trace_hardirqs_off+0xd/0x10 [ 111.382862] ? bad_range+0x121/0x3a0 [ 111.386558] ? __this_cpu_preempt_check+0x13/0x20 [ 111.391377] ? do_raw_spin_unlock+0x16a/0x250 [ 111.395917] rtnl_newlink+0xe0c/0x1390 [ 111.399846] ? rtnl_link_unregister+0x270/0x270 [ 111.404492] ? finish_task_switch+0x448/0x650 [ 111.409035] ? find_held_lock+0x36/0x1d0 [ 111.413079] ? __mutex_lock+0x8b7/0x14c0 [ 111.417123] ? lock_downgrade+0x7f0/0x7f0 [ 111.421262] ? do_raw_spin_unlock+0x16a/0x250 [ 111.425776] rtnetlink_rcv_msg+0x34c/0x9e0 [ 111.429989] ? rtnl_bridge_getlink+0x760/0x760 [ 111.434560] ? find_held_lock+0x36/0x1d0 [ 111.438599] netlink_rcv_skb+0x133/0x370 [ 111.442634] ? rtnl_bridge_getlink+0x760/0x760 [ 111.447188] ? netlink_ack+0xa00/0xa00 [ 111.451051] ? netlink_deliver_tap+0x8e/0x920 [ 111.455522] rtnetlink_rcv+0x10/0x20 [ 111.459208] netlink_unicast+0x40b/0x600 [ 111.463269] ? netlink_attachskb+0x6d0/0x6d0 [ 111.467654] netlink_sendmsg+0x730/0xbd0 [ 111.471690] ? netlink_unicast+0x600/0x600 [ 111.475903] ? selinux_socket_sendmsg+0x31/0x40 [ 111.480546] ? security_socket_sendmsg+0x6a/0xa0 [ 111.485277] ? netlink_unicast+0x600/0x600 [ 111.489487] sock_sendmsg+0xb5/0xf0 [ 111.493098] ___sys_sendmsg+0x625/0x920 [ 111.497062] ? trace_hardirqs_off+0x10/0x10 [ 111.501369] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 111.506106] ? find_held_lock+0x36/0x1d0 [ 111.510159] ? lock_downgrade+0x7f0/0x7f0 [ 111.514301] ? __fget+0x1ca/0x2f0 [ 111.517733] ? __fget_light+0x166/0x200 [ 111.521698] ? __fdget+0xe/0x10 [ 111.524957] ? sockfd_lookup_light+0x1c/0x150 [ 111.529425] __sys_sendmsg+0xc1/0x140 [ 111.533212] ? SyS_shutdown+0x180/0x180 [ 111.537168] ? __sb_end_write+0xa4/0xd0 [ 111.541119] ? mutex_unlock+0xd/0x10 [ 111.544828] ? do_syscall_64+0x4c/0x5b0 [ 111.548784] ? __sys_sendmsg+0x140/0x140 [ 111.552828] SyS_sendmsg+0xd/0x20 [ 111.556270] do_syscall_64+0x1c7/0x5b0 [ 111.560132] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 111.564958] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 111.570174] RIP: 0033:0x45b399 [ 111.573343] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 111.581040] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 111.588288] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 111.595530] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 111.602776] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 111.610020] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 111.618605] batman_adv: batadv0: Adding interface: veth1_to_batadv [ 111.625281] batman_adv: batadv0: The MTU of interface veth1_to_batadv 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. [ 111.650961] batman_adv: batadv0: Interface activated: veth1_to_batadv [ 111.658478] FAULT_INJECTION: forcing a failure. [ 111.658478] name failslab, interval 1, probability 0, space 0, times 0 [ 111.670981] CPU: 1 PID: 8242 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 111.678776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 111.688124] Call Trace: [ 111.690715] dump_stack+0xf7/0x13b [ 111.694251] should_fail.cold.3+0x105/0x14b [ 111.698685] should_failslab+0xba/0xf0 [ 111.702566] kmem_cache_alloc_node_trace+0x279/0x780 [ 111.707764] __kmalloc_node_track_caller+0x3c/0x70 [ 111.712795] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 111.717549] __alloc_skb+0xc1/0x500 [ 111.721154] ? skb_trim+0x160/0x160 [ 111.724760] ? if_nlmsg_size+0x2d9/0x6f0 [ 111.728943] rtmsg_ifinfo_build_skb+0x68/0x120 [ 111.733507] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 111.738354] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 111.743265] rtnetlink_event+0xc2/0x110 [ 111.747220] notifier_call_chain+0xd6/0x150 [ 111.751537] raw_notifier_call_chain+0x11/0x20 [ 111.756106] call_netdevice_notifiers_info+0x4b/0x60 [ 111.761333] __netdev_upper_dev_link+0x18e/0x1f0 [ 111.766472] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 111.771368] netdev_master_upper_dev_link+0x14/0x20 [ 111.776438] batadv_hardif_enable_interface+0x1f4/0xa10 [ 111.781927] batadv_softif_slave_add+0x7f/0xd0 [ 111.786497] do_set_master+0x163/0x1f0 [ 111.790361] do_setlink+0x9dd/0x2c50 [ 111.794071] ? find_held_lock+0x36/0x1d0 [ 111.798175] ? rtnl_register+0x20/0x20 [ 111.802043] ? load_balance+0xb38/0x2190 [ 111.806107] ? lock_downgrade+0x7f0/0x7f0 [ 111.810236] ? lock_pin_lock+0x340/0x340 [ 111.814286] ? __lock_acquire+0x6a4/0x4500 [ 111.818501] ? trace_hardirqs_off+0x10/0x10 [ 111.822802] ? __lock_is_held+0xb5/0x140 [ 111.826845] ? trace_hardirqs_off+0x10/0x10 [ 111.831148] rtnl_newlink+0xe0c/0x1390 [ 111.835022] ? rtnl_link_unregister+0x270/0x270 [ 111.839674] ? finish_task_switch+0x178/0x650 [ 111.844147] ? finish_task_switch+0x14d/0x650 [ 111.848703] ? find_held_lock+0x36/0x1d0 [ 111.852755] ? __mutex_lock+0x8b7/0x14c0 [ 111.856788] ? lock_downgrade+0x7f0/0x7f0 [ 111.860911] ? do_raw_spin_unlock+0x16a/0x250 [ 111.865396] rtnetlink_rcv_msg+0x34c/0x9e0 [ 111.869604] ? rtnl_bridge_getlink+0x760/0x760 [ 111.874160] ? find_held_lock+0x36/0x1d0 [ 111.878199] netlink_rcv_skb+0x133/0x370 [ 111.882254] ? rtnl_bridge_getlink+0x760/0x760 [ 111.886828] ? netlink_ack+0xa00/0xa00 [ 111.890705] ? netlink_deliver_tap+0x8e/0x920 [ 111.895203] rtnetlink_rcv+0x10/0x20 [ 111.898893] netlink_unicast+0x40b/0x600 [ 111.902931] ? netlink_attachskb+0x6d0/0x6d0 [ 111.907330] netlink_sendmsg+0x730/0xbd0 [ 111.911378] ? netlink_unicast+0x600/0x600 [ 111.915592] ? selinux_socket_sendmsg+0x31/0x40 [ 111.920234] ? security_socket_sendmsg+0x6a/0xa0 [ 111.924963] ? netlink_unicast+0x600/0x600 [ 111.929172] sock_sendmsg+0xb5/0xf0 [ 111.932775] ___sys_sendmsg+0x625/0x920 [ 111.936740] ? trace_hardirqs_off+0x10/0x10 [ 111.941051] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 111.945783] ? find_held_lock+0x36/0x1d0 [ 111.949820] ? lock_downgrade+0x7f0/0x7f0 [ 111.953945] ? __fget+0x1ca/0x2f0 [ 111.957374] ? __fget_light+0x166/0x200 [ 111.961336] ? __fdget+0xe/0x10 [ 111.964593] ? sockfd_lookup_light+0x1c/0x150 [ 111.969079] __sys_sendmsg+0xc1/0x140 [ 111.972859] ? SyS_shutdown+0x180/0x180 [ 111.976818] ? __sb_end_write+0xa4/0xd0 [ 111.980775] ? mutex_unlock+0xd/0x10 [ 111.984467] ? do_syscall_64+0x4c/0x5b0 [ 111.988682] ? __sys_sendmsg+0x140/0x140 [ 111.992717] SyS_sendmsg+0xd/0x20 [ 111.996143] do_syscall_64+0x1c7/0x5b0 [ 112.000018] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 112.004842] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 112.010010] RIP: 0033:0x45b399 [ 112.013184] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 112.020953] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 112.028221] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 112.035484] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 112.042746] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 112.049992] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 112.058968] batman_adv: batadv0: Adding interface: hsr_slave_0 [ 112.065009] batman_adv: batadv0: The MTU of interface hsr_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. [ 112.089977] batman_adv: batadv0: Interface activated: hsr_slave_0 [ 112.097116] FAULT_INJECTION: forcing a failure. [ 112.097116] name failslab, interval 1, probability 0, space 0, times 0 [ 112.122967] CPU: 0 PID: 8247 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 112.130826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.140178] Call Trace: [ 112.142762] dump_stack+0xf7/0x13b [ 112.146295] should_fail.cold.3+0x105/0x14b [ 112.150612] should_failslab+0xba/0xf0 [ 112.154487] kmem_cache_alloc_node_trace+0x279/0x780 [ 112.159569] __kmalloc_node_track_caller+0x3c/0x70 [ 112.164484] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 112.169222] __alloc_skb+0xc1/0x500 [ 112.172823] ? skb_trim+0x160/0x160 [ 112.176426] ? if_nlmsg_size+0x2d9/0x6f0 [ 112.180515] rtmsg_ifinfo_build_skb+0x68/0x120 [ 112.185082] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 112.189955] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 112.194987] rtnetlink_event+0xc2/0x110 [ 112.198954] notifier_call_chain+0xd6/0x150 [ 112.203263] raw_notifier_call_chain+0x11/0x20 [ 112.207832] call_netdevice_notifiers_info+0x4b/0x60 [ 112.212917] __netdev_upper_dev_link+0x18e/0x1f0 [ 112.217708] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 112.222448] netdev_master_upper_dev_link+0x14/0x20 [ 112.227552] batadv_hardif_enable_interface+0x1f4/0xa10 [ 112.232958] batadv_softif_slave_add+0x7f/0xd0 [ 112.237520] do_set_master+0x163/0x1f0 [ 112.241392] do_setlink+0x9dd/0x2c50 [ 112.245117] ? find_held_lock+0x36/0x1d0 [ 112.249174] ? rtnl_register+0x20/0x20 [ 112.253179] ? load_balance+0xb38/0x2190 [ 112.257218] ? lock_downgrade+0x7f0/0x7f0 [ 112.261435] ? lock_pin_lock+0x340/0x340 [ 112.265494] ? __lock_acquire+0x6a4/0x4500 [ 112.269878] ? trace_hardirqs_off+0x10/0x10 [ 112.274181] ? __lock_is_held+0xb5/0x140 [ 112.278227] ? trace_hardirqs_off+0x10/0x10 [ 112.282548] rtnl_newlink+0xe0c/0x1390 [ 112.286434] ? rtnl_link_unregister+0x270/0x270 [ 112.291264] ? finish_task_switch+0x178/0x650 [ 112.295747] ? finish_task_switch+0x14d/0x650 [ 112.300428] ? find_held_lock+0x36/0x1d0 [ 112.304482] ? __mutex_lock+0x8b7/0x14c0 [ 112.308528] ? lock_downgrade+0x7f0/0x7f0 [ 112.312655] ? do_raw_spin_unlock+0x16a/0x250 [ 112.317159] rtnetlink_rcv_msg+0x34c/0x9e0 [ 112.321375] ? rtnl_bridge_getlink+0x760/0x760 [ 112.325940] ? find_held_lock+0x36/0x1d0 [ 112.329984] netlink_rcv_skb+0x133/0x370 [ 112.334020] ? rtnl_bridge_getlink+0x760/0x760 [ 112.338593] ? netlink_ack+0xa00/0xa00 [ 112.342735] ? netlink_deliver_tap+0x8e/0x920 [ 112.347221] rtnetlink_rcv+0x10/0x20 [ 112.350908] netlink_unicast+0x40b/0x600 [ 112.354953] ? netlink_attachskb+0x6d0/0x6d0 [ 112.359357] netlink_sendmsg+0x730/0xbd0 [ 112.363413] ? netlink_unicast+0x600/0x600 [ 112.367637] ? selinux_socket_sendmsg+0x31/0x40 [ 112.372289] ? security_socket_sendmsg+0x6a/0xa0 [ 112.377030] ? netlink_unicast+0x600/0x600 [ 112.381252] sock_sendmsg+0xb5/0xf0 [ 112.384863] ___sys_sendmsg+0x625/0x920 [ 112.388938] ? trace_hardirqs_off+0x10/0x10 [ 112.393418] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 112.398156] ? find_held_lock+0x36/0x1d0 [ 112.402196] ? lock_downgrade+0x7f0/0x7f0 [ 112.406336] ? __fget+0x1ca/0x2f0 [ 112.409772] ? __fget_light+0x166/0x200 [ 112.413722] ? __fdget+0xe/0x10 [ 112.416990] ? sockfd_lookup_light+0x1c/0x150 [ 112.421459] __sys_sendmsg+0xc1/0x140 [ 112.425251] ? SyS_shutdown+0x180/0x180 [ 112.429223] ? __sb_end_write+0xa4/0xd0 [ 112.433174] ? mutex_unlock+0xd/0x10 [ 112.436864] ? do_syscall_64+0x4c/0x5b0 [ 112.440812] ? __sys_sendmsg+0x140/0x140 [ 112.444853] SyS_sendmsg+0xd/0x20 [ 112.448290] do_syscall_64+0x1c7/0x5b0 [ 112.452165] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 112.454588] NOHZ: local_softirq_pending 08 [ 112.456993] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 112.466374] RIP: 0033:0x45b399 [ 112.469573] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 112.477273] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 112.484533] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 112.491791] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 112.499037] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 112.506367] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 112.516198] batman_adv: batadv0: Adding interface: veth0_virt_wifi [ 112.523699] batman_adv: batadv0: The MTU of interface veth0_virt_wifi 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. [ 112.549288] batman_adv: batadv0: Interface activated: veth0_virt_wifi [ 112.556933] FAULT_INJECTION: forcing a failure. [ 112.556933] name failslab, interval 1, probability 0, space 0, times 0 [ 112.568753] CPU: 1 PID: 8252 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 112.576549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 112.586193] Call Trace: [ 112.588761] dump_stack+0xf7/0x13b [ 112.592295] should_fail.cold.3+0x105/0x14b [ 112.596596] should_failslab+0xba/0xf0 [ 112.600469] kmem_cache_alloc_node_trace+0x279/0x780 [ 112.605554] __kmalloc_node_track_caller+0x3c/0x70 [ 112.610519] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 112.615307] __alloc_skb+0xc1/0x500 [ 112.618954] ? skb_trim+0x160/0x160 [ 112.622574] ? if_nlmsg_size+0x2d9/0x6f0 [ 112.626616] rtmsg_ifinfo_build_skb+0x68/0x120 [ 112.631195] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 112.636097] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 112.641012] rtnetlink_event+0xc2/0x110 [ 112.644976] notifier_call_chain+0xd6/0x150 [ 112.649283] raw_notifier_call_chain+0x11/0x20 [ 112.653839] call_netdevice_notifiers_info+0x4b/0x60 [ 112.658914] __netdev_upper_dev_link+0x18e/0x1f0 [ 112.663641] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 112.668373] netdev_master_upper_dev_link+0x14/0x20 [ 112.673364] batadv_hardif_enable_interface+0x1f4/0xa10 [ 112.678704] batadv_softif_slave_add+0x7f/0xd0 [ 112.683281] do_set_master+0x163/0x1f0 [ 112.687142] do_setlink+0x9dd/0x2c50 [ 112.690829] ? find_held_lock+0x36/0x1d0 [ 112.694866] ? rtnl_register+0x20/0x20 [ 112.698724] ? load_balance+0xb38/0x2190 [ 112.702758] ? lock_downgrade+0x7f0/0x7f0 [ 112.706886] ? lock_pin_lock+0x340/0x340 [ 112.710936] ? __lock_acquire+0x6a4/0x4500 [ 112.715155] ? trace_hardirqs_off+0x10/0x10 [ 112.719471] ? __lock_is_held+0xb5/0x140 [ 112.723507] ? trace_hardirqs_off+0x10/0x10 [ 112.728509] rtnl_newlink+0xe0c/0x1390 [ 112.732383] ? rtnl_link_unregister+0x270/0x270 [ 112.737037] ? finish_task_switch+0x178/0x650 [ 112.741503] ? finish_task_switch+0x14d/0x650 [ 112.745972] ? find_held_lock+0x36/0x1d0 [ 112.750011] ? __mutex_lock+0x8b7/0x14c0 [ 112.754064] ? lock_downgrade+0x7f0/0x7f0 [ 112.758204] ? do_raw_spin_unlock+0x16a/0x250 [ 112.762688] rtnetlink_rcv_msg+0x34c/0x9e0 [ 112.766905] ? rtnl_bridge_getlink+0x760/0x760 [ 112.771460] ? find_held_lock+0x36/0x1d0 [ 112.775513] netlink_rcv_skb+0x133/0x370 [ 112.779570] ? rtnl_bridge_getlink+0x760/0x760 [ 112.784135] ? netlink_ack+0xa00/0xa00 [ 112.788001] ? netlink_deliver_tap+0x8e/0x920 [ 112.792481] rtnetlink_rcv+0x10/0x20 [ 112.796174] netlink_unicast+0x40b/0x600 [ 112.800213] ? netlink_attachskb+0x6d0/0x6d0 [ 112.804600] netlink_sendmsg+0x730/0xbd0 [ 112.808687] ? netlink_unicast+0x600/0x600 [ 112.812899] ? selinux_socket_sendmsg+0x31/0x40 [ 112.817548] ? security_socket_sendmsg+0x6a/0xa0 [ 112.822276] ? netlink_unicast+0x600/0x600 [ 112.826486] sock_sendmsg+0xb5/0xf0 [ 112.830136] ___sys_sendmsg+0x625/0x920 [ 112.834086] ? trace_hardirqs_off+0x10/0x10 [ 112.838382] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 112.843244] ? find_held_lock+0x36/0x1d0 [ 112.847336] ? lock_downgrade+0x7f0/0x7f0 [ 112.851498] ? __fget+0x1ca/0x2f0 [ 112.854938] ? __fget_light+0x166/0x200 [ 112.858889] ? __fdget+0xe/0x10 [ 112.862143] ? sockfd_lookup_light+0x1c/0x150 [ 112.866627] __sys_sendmsg+0xc1/0x140 [ 112.870487] ? SyS_shutdown+0x180/0x180 [ 112.874447] ? __sb_end_write+0xa4/0xd0 [ 112.878411] ? mutex_unlock+0xd/0x10 [ 112.882107] ? do_syscall_64+0x4c/0x5b0 [ 112.886140] ? __sys_sendmsg+0x140/0x140 [ 112.890171] SyS_sendmsg+0xd/0x20 [ 112.893599] do_syscall_64+0x1c7/0x5b0 [ 112.897467] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 112.902284] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 112.907451] RIP: 0033:0x45b399 [ 112.910612] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 112.918292] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 112.925535] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 112.932776] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 112.940196] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 112.947450] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 112.978164] batman_adv: batadv0: Adding interface: veth1_to_batadv [ 112.988566] batman_adv: batadv0: The MTU of interface veth1_to_batadv 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. [ 113.015060] batman_adv: batadv0: Interface activated: veth1_to_batadv [ 113.022388] FAULT_INJECTION: forcing a failure. [ 113.022388] name failslab, interval 1, probability 0, space 0, times 0 [ 113.038463] CPU: 1 PID: 8261 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 113.046265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.055612] Call Trace: [ 113.058195] dump_stack+0xf7/0x13b [ 113.061735] should_fail.cold.3+0x105/0x14b [ 113.066160] should_failslab+0xba/0xf0 [ 113.070054] kmem_cache_alloc_node_trace+0x279/0x780 [ 113.075146] __kmalloc_node_track_caller+0x3c/0x70 [ 113.080067] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 113.084810] __alloc_skb+0xc1/0x500 [ 113.088410] ? skb_trim+0x160/0x160 [ 113.092076] ? if_nlmsg_size+0x2d9/0x6f0 [ 113.096309] rtmsg_ifinfo_build_skb+0x68/0x120 [ 113.100934] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 113.105768] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 113.110683] rtnetlink_event+0xc2/0x110 [ 113.114781] notifier_call_chain+0xd6/0x150 [ 113.119109] raw_notifier_call_chain+0x11/0x20 [ 113.123764] call_netdevice_notifiers_info+0x4b/0x60 [ 113.128853] __netdev_upper_dev_link+0x18e/0x1f0 [ 113.133599] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 113.138337] netdev_master_upper_dev_link+0x14/0x20 [ 113.143329] batadv_hardif_enable_interface+0x1f4/0xa10 [ 113.148757] batadv_softif_slave_add+0x7f/0xd0 [ 113.153409] do_set_master+0x163/0x1f0 [ 113.157289] do_setlink+0x9dd/0x2c50 [ 113.161595] ? find_held_lock+0x36/0x1d0 [ 113.165651] ? rtnl_register+0x20/0x20 [ 113.169520] ? load_balance+0xb38/0x2190 [ 113.173577] ? lock_downgrade+0x7f0/0x7f0 [ 113.177700] ? lock_pin_lock+0x340/0x340 [ 113.181753] ? __lock_acquire+0x6a4/0x4500 [ 113.185970] ? trace_hardirqs_off+0x10/0x10 [ 113.190280] ? __lock_is_held+0xb5/0x140 [ 113.194329] ? trace_hardirqs_off+0x10/0x10 [ 113.198630] rtnl_newlink+0xe0c/0x1390 [ 113.202585] ? rtnl_link_unregister+0x270/0x270 [ 113.207238] ? finish_task_switch+0x178/0x650 [ 113.211708] ? finish_task_switch+0x14d/0x650 [ 113.216193] ? find_held_lock+0x36/0x1d0 [ 113.220243] ? __mutex_lock+0x8b7/0x14c0 [ 113.224290] ? lock_downgrade+0x7f0/0x7f0 [ 113.228422] ? do_raw_spin_unlock+0x16a/0x250 [ 113.232930] rtnetlink_rcv_msg+0x34c/0x9e0 [ 113.237166] ? rtnl_bridge_getlink+0x760/0x760 [ 113.241730] ? find_held_lock+0x36/0x1d0 [ 113.245775] netlink_rcv_skb+0x133/0x370 [ 113.249808] ? rtnl_bridge_getlink+0x760/0x760 [ 113.254378] ? netlink_ack+0xa00/0xa00 [ 113.258238] ? netlink_deliver_tap+0x8e/0x920 [ 113.262717] rtnetlink_rcv+0x10/0x20 [ 113.266417] netlink_unicast+0x40b/0x600 [ 113.270455] ? netlink_attachskb+0x6d0/0x6d0 [ 113.274928] netlink_sendmsg+0x730/0xbd0 [ 113.279033] ? netlink_unicast+0x600/0x600 [ 113.285685] ? selinux_socket_sendmsg+0x31/0x40 [ 113.290330] ? security_socket_sendmsg+0x6a/0xa0 [ 113.295059] ? netlink_unicast+0x600/0x600 [ 113.299271] sock_sendmsg+0xb5/0xf0 [ 113.302884] ___sys_sendmsg+0x625/0x920 [ 113.306891] ? trace_hardirqs_off+0x10/0x10 [ 113.311191] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 113.315928] ? find_held_lock+0x36/0x1d0 [ 113.319971] ? lock_downgrade+0x7f0/0x7f0 [ 113.324139] ? __fget+0x1ca/0x2f0 [ 113.327584] ? __fget_light+0x166/0x200 [ 113.331534] ? __fdget+0xe/0x10 [ 113.334788] ? sockfd_lookup_light+0x1c/0x150 [ 113.339851] __sys_sendmsg+0xc1/0x140 [ 113.343625] ? SyS_shutdown+0x180/0x180 [ 113.347576] ? __sb_end_write+0xa4/0xd0 [ 113.351538] ? mutex_unlock+0xd/0x10 [ 113.355236] ? do_syscall_64+0x4c/0x5b0 [ 113.359202] ? __sys_sendmsg+0x140/0x140 [ 113.363235] SyS_sendmsg+0xd/0x20 [ 113.366662] do_syscall_64+0x1c7/0x5b0 [ 113.370525] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 113.375365] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 113.381148] RIP: 0033:0x45b399 [ 113.384313] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.392000] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 113.399406] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 113.406666] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 113.413955] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 113.421202] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 113.431138] batman_adv: batadv0: Adding interface: veth0_to_hsr [ 113.437319] batman_adv: batadv0: The MTU of interface veth0_to_hsr 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. [ 113.462526] batman_adv: batadv0: Interface activated: veth0_to_hsr [ 113.471050] FAULT_INJECTION: forcing a failure. [ 113.471050] name failslab, interval 1, probability 0, space 0, times 0 [ 113.490266] CPU: 1 PID: 8265 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 113.498085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.507435] Call Trace: [ 113.510014] dump_stack+0xf7/0x13b [ 113.513554] should_fail.cold.3+0x105/0x14b [ 113.517878] should_failslab+0xba/0xf0 [ 113.521758] kmem_cache_alloc_node_trace+0x279/0x780 [ 113.526863] __kmalloc_node_track_caller+0x3c/0x70 [ 113.531790] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 113.536547] __alloc_skb+0xc1/0x500 [ 113.540169] ? skb_trim+0x160/0x160 [ 113.543792] ? if_nlmsg_size+0x2d9/0x6f0 [ 113.547851] rtmsg_ifinfo_build_skb+0x68/0x120 [ 113.552426] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 113.557265] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 113.562181] rtnetlink_event+0xc2/0x110 [ 113.566233] notifier_call_chain+0xd6/0x150 [ 113.570576] raw_notifier_call_chain+0x11/0x20 [ 113.575136] call_netdevice_notifiers_info+0x4b/0x60 [ 113.580216] __netdev_upper_dev_link+0x18e/0x1f0 [ 113.584945] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 113.589679] netdev_master_upper_dev_link+0x14/0x20 [ 113.594672] batadv_hardif_enable_interface+0x1f4/0xa10 [ 113.600101] batadv_softif_slave_add+0x7f/0xd0 [ 113.604665] do_set_master+0x163/0x1f0 [ 113.608534] do_setlink+0x9dd/0x2c50 [ 113.612223] ? find_held_lock+0x36/0x1d0 [ 113.616260] ? rtnl_register+0x20/0x20 [ 113.620131] ? load_balance+0xb38/0x2190 [ 113.624171] ? lock_downgrade+0x7f0/0x7f0 [ 113.628378] ? lock_pin_lock+0x340/0x340 [ 113.632427] ? __lock_acquire+0x6a4/0x4500 [ 113.636647] ? trace_hardirqs_off+0x10/0x10 [ 113.640941] ? __lock_is_held+0xb5/0x140 [ 113.644989] ? trace_hardirqs_off+0x10/0x10 [ 113.649291] rtnl_newlink+0xe0c/0x1390 [ 113.653245] ? rtnl_link_unregister+0x270/0x270 [ 113.657885] ? finish_task_switch+0x178/0x650 [ 113.662364] ? finish_task_switch+0x14d/0x650 [ 113.666833] ? find_held_lock+0x36/0x1d0 [ 113.670872] ? __mutex_lock+0x8b7/0x14c0 [ 113.674906] ? lock_downgrade+0x7f0/0x7f0 [ 113.679045] ? do_raw_spin_unlock+0x16a/0x250 [ 113.683527] rtnetlink_rcv_msg+0x34c/0x9e0 [ 113.687739] ? rtnl_bridge_getlink+0x760/0x760 [ 113.692294] ? find_held_lock+0x36/0x1d0 [ 113.696332] netlink_rcv_skb+0x133/0x370 [ 113.700366] ? rtnl_bridge_getlink+0x760/0x760 [ 113.704933] ? netlink_ack+0xa00/0xa00 [ 113.708809] ? netlink_deliver_tap+0x8e/0x920 [ 113.713280] rtnetlink_rcv+0x10/0x20 [ 113.716979] netlink_unicast+0x40b/0x600 [ 113.721018] ? netlink_attachskb+0x6d0/0x6d0 [ 113.725404] netlink_sendmsg+0x730/0xbd0 [ 113.729439] ? netlink_unicast+0x600/0x600 [ 113.733659] ? selinux_socket_sendmsg+0x31/0x40 [ 113.738312] ? security_socket_sendmsg+0x6a/0xa0 [ 113.743051] ? netlink_unicast+0x600/0x600 [ 113.747264] sock_sendmsg+0xb5/0xf0 [ 113.750871] ___sys_sendmsg+0x625/0x920 [ 113.754820] ? trace_hardirqs_off+0x10/0x10 [ 113.759213] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 113.763958] ? find_held_lock+0x36/0x1d0 [ 113.768009] ? lock_downgrade+0x7f0/0x7f0 [ 113.772156] ? __fget+0x1ca/0x2f0 [ 113.775771] ? __fget_light+0x166/0x200 [ 113.780240] ? __fdget+0xe/0x10 [ 113.783493] ? sockfd_lookup_light+0x1c/0x150 [ 113.787963] __sys_sendmsg+0xc1/0x140 [ 113.791737] ? SyS_shutdown+0x180/0x180 [ 113.795686] ? __sb_end_write+0xa4/0xd0 [ 113.799639] ? mutex_unlock+0xd/0x10 [ 113.803354] ? do_syscall_64+0x4c/0x5b0 [ 113.807739] ? __sys_sendmsg+0x140/0x140 [ 113.811809] SyS_sendmsg+0xd/0x20 [ 113.815255] do_syscall_64+0x1c7/0x5b0 [ 113.819116] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 113.824039] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 113.829219] RIP: 0033:0x45b399 [ 113.832382] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.840063] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 113.847312] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 113.854562] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 113.862373] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 113.869673] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 113.878531] batman_adv: batadv0: Adding interface: veth0_to_hsr [ 113.885682] batman_adv: batadv0: The MTU of interface veth0_to_hsr 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. [ 113.910818] batman_adv: batadv0: Interface activated: veth0_to_hsr [ 113.918054] FAULT_INJECTION: forcing a failure. [ 113.918054] name failslab, interval 1, probability 0, space 0, times 0 [ 113.930669] CPU: 1 PID: 8268 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 113.938464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 113.947923] Call Trace: [ 113.950491] dump_stack+0xf7/0x13b [ 113.954047] should_fail.cold.3+0x105/0x14b [ 113.958348] should_failslab+0xba/0xf0 [ 113.962214] kmem_cache_alloc_node_trace+0x279/0x780 [ 113.967321] __kmalloc_node_track_caller+0x3c/0x70 [ 113.972268] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 113.977012] __alloc_skb+0xc1/0x500 [ 113.980613] ? skb_trim+0x160/0x160 [ 113.984219] ? if_nlmsg_size+0x2d9/0x6f0 [ 113.988259] rtmsg_ifinfo_build_skb+0x68/0x120 [ 113.992816] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 113.997634] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 114.002665] rtnetlink_event+0xc2/0x110 [ 114.006691] notifier_call_chain+0xd6/0x150 [ 114.011056] raw_notifier_call_chain+0x11/0x20 [ 114.015711] call_netdevice_notifiers_info+0x4b/0x60 [ 114.020798] __netdev_upper_dev_link+0x18e/0x1f0 [ 114.025530] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 114.030269] netdev_master_upper_dev_link+0x14/0x20 [ 114.035262] batadv_hardif_enable_interface+0x1f4/0xa10 [ 114.040600] batadv_softif_slave_add+0x7f/0xd0 [ 114.045158] do_set_master+0x163/0x1f0 [ 114.049078] do_setlink+0x9dd/0x2c50 [ 114.052766] ? __lock_acquire+0x6a4/0x4500 [ 114.056975] ? rtnl_register+0x20/0x20 [ 114.060837] ? trace_hardirqs_on+0x10/0x10 [ 114.065045] ? trace_hardirqs_off+0x10/0x10 [ 114.069342] ? __lock_acquire+0x6a4/0x4500 [ 114.073559] ? trace_hardirqs_off+0x10/0x10 [ 114.077870] ? trace_hardirqs_off+0x10/0x10 [ 114.082176] ? __lock_is_held+0xb5/0x140 [ 114.086271] ? trace_hardirqs_off+0x10/0x10 [ 114.090576] rtnl_newlink+0xe0c/0x1390 [ 114.094611] ? rtnl_link_unregister+0x270/0x270 [ 114.099258] ? finish_task_switch+0x178/0x650 [ 114.103725] ? finish_task_switch+0x14d/0x650 [ 114.108215] ? find_held_lock+0x36/0x1d0 [ 114.112258] ? __mutex_lock+0x8b7/0x14c0 [ 114.116299] ? lock_downgrade+0x7f0/0x7f0 [ 114.120422] ? do_raw_spin_unlock+0x16a/0x250 [ 114.124907] rtnetlink_rcv_msg+0x34c/0x9e0 [ 114.129133] ? rtnl_bridge_getlink+0x760/0x760 [ 114.133703] ? find_held_lock+0x36/0x1d0 [ 114.137757] netlink_rcv_skb+0x133/0x370 [ 114.141799] ? rtnl_bridge_getlink+0x760/0x760 [ 114.146366] ? netlink_ack+0xa00/0xa00 [ 114.150229] ? netlink_deliver_tap+0x8e/0x920 [ 114.154699] rtnetlink_rcv+0x10/0x20 [ 114.158386] netlink_unicast+0x40b/0x600 [ 114.162427] ? netlink_attachskb+0x6d0/0x6d0 [ 114.166825] netlink_sendmsg+0x730/0xbd0 [ 114.170867] ? netlink_unicast+0x600/0x600 [ 114.175077] ? selinux_socket_sendmsg+0x31/0x40 [ 114.179720] ? security_socket_sendmsg+0x6a/0xa0 [ 114.184453] ? netlink_unicast+0x600/0x600 [ 114.188679] sock_sendmsg+0xb5/0xf0 [ 114.192280] ___sys_sendmsg+0x625/0x920 [ 114.196226] ? trace_hardirqs_off+0x10/0x10 [ 114.200520] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 114.205249] ? find_held_lock+0x36/0x1d0 [ 114.209287] ? lock_downgrade+0x7f0/0x7f0 [ 114.213411] ? __fget+0x1ca/0x2f0 [ 114.216862] ? __fget_light+0x166/0x200 [ 114.220813] ? __fdget+0xe/0x10 [ 114.224075] ? sockfd_lookup_light+0x1c/0x150 [ 114.228562] __sys_sendmsg+0xc1/0x140 [ 114.232368] ? SyS_shutdown+0x180/0x180 [ 114.236321] ? __sb_end_write+0xa4/0xd0 [ 114.240279] ? mutex_unlock+0xd/0x10 [ 114.243971] ? do_syscall_64+0x4c/0x5b0 [ 114.247916] ? __sys_sendmsg+0x140/0x140 [ 114.251947] SyS_sendmsg+0xd/0x20 [ 114.255390] do_syscall_64+0x1c7/0x5b0 [ 114.259254] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 114.264093] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 114.269347] RIP: 0033:0x45b399 [ 114.272519] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e 2020/06/04 21:06:32 executed programs: 127 [ 114.280210] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 114.287480] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 114.294737] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 114.301981] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 114.309227] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 114.317698] batman_adv: batadv0: Adding interface: hsr_slave_1 [ 114.323713] batman_adv: batadv0: The MTU of interface hsr_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. [ 114.351823] batman_adv: batadv0: Interface activated: hsr_slave_1 [ 114.358943] FAULT_INJECTION: forcing a failure. [ 114.358943] name failslab, interval 1, probability 0, space 0, times 0 [ 114.376796] CPU: 0 PID: 8271 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 114.384602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.393948] Call Trace: [ 114.396532] dump_stack+0xf7/0x13b [ 114.400079] should_fail.cold.3+0x105/0x14b [ 114.404395] should_failslab+0xba/0xf0 [ 114.408274] kmem_cache_alloc_node_trace+0x279/0x780 [ 114.413416] __kmalloc_node_track_caller+0x3c/0x70 [ 114.418339] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 114.423091] __alloc_skb+0xc1/0x500 [ 114.426706] ? skb_trim+0x160/0x160 [ 114.430382] ? if_nlmsg_size+0x2d9/0x6f0 [ 114.434429] rtmsg_ifinfo_build_skb+0x68/0x120 [ 114.438992] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 114.444084] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 114.448992] rtnetlink_event+0xc2/0x110 [ 114.452942] notifier_call_chain+0xd6/0x150 [ 114.457245] raw_notifier_call_chain+0x11/0x20 [ 114.461935] call_netdevice_notifiers_info+0x4b/0x60 [ 114.467012] __netdev_upper_dev_link+0x18e/0x1f0 [ 114.471739] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 114.476469] netdev_master_upper_dev_link+0x14/0x20 [ 114.481462] batadv_hardif_enable_interface+0x1f4/0xa10 [ 114.486806] batadv_softif_slave_add+0x7f/0xd0 [ 114.491374] do_set_master+0x163/0x1f0 [ 114.495336] do_setlink+0x9dd/0x2c50 [ 114.499025] ? find_held_lock+0x36/0x1d0 [ 114.503072] ? rtnl_register+0x20/0x20 [ 114.506954] ? load_balance+0xb38/0x2190 [ 114.511014] ? lock_downgrade+0x7f0/0x7f0 [ 114.515141] ? lock_pin_lock+0x340/0x340 [ 114.519208] ? __lock_acquire+0x6a4/0x4500 [ 114.523423] ? trace_hardirqs_off+0x10/0x10 [ 114.527745] ? __lock_is_held+0xb5/0x140 [ 114.531799] ? mark_held_locks+0xc7/0x130 [ 114.535952] ? retint_kernel+0x2d/0x2d [ 114.539819] rtnl_newlink+0xe0c/0x1390 [ 114.543694] ? rtnl_link_unregister+0x270/0x270 [ 114.548343] ? finish_task_switch+0x178/0x650 [ 114.552826] ? finish_task_switch+0x14d/0x650 [ 114.557303] ? find_held_lock+0x36/0x1d0 [ 114.561352] ? __mutex_lock+0x8b7/0x14c0 [ 114.565394] ? lock_downgrade+0x7f0/0x7f0 [ 114.569523] ? do_raw_spin_unlock+0x16a/0x250 [ 114.574030] rtnetlink_rcv_msg+0x34c/0x9e0 [ 114.578250] ? rtnl_bridge_getlink+0x760/0x760 [ 114.582929] ? find_held_lock+0x36/0x1d0 [ 114.586984] netlink_rcv_skb+0x133/0x370 [ 114.591034] ? rtnl_bridge_getlink+0x760/0x760 [ 114.595592] ? netlink_ack+0xa00/0xa00 [ 114.599541] ? netlink_deliver_tap+0x8e/0x920 [ 114.604023] rtnetlink_rcv+0x10/0x20 [ 114.607717] netlink_unicast+0x40b/0x600 [ 114.611896] ? netlink_attachskb+0x6d0/0x6d0 [ 114.616287] netlink_sendmsg+0x730/0xbd0 [ 114.620324] ? netlink_unicast+0x600/0x600 [ 114.624542] ? selinux_socket_sendmsg+0x31/0x40 [ 114.629194] ? security_socket_sendmsg+0x6a/0xa0 [ 114.633931] ? netlink_unicast+0x600/0x600 [ 114.638161] sock_sendmsg+0xb5/0xf0 [ 114.641771] ___sys_sendmsg+0x625/0x920 [ 114.645721] ? trace_hardirqs_off+0x10/0x10 [ 114.650188] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 114.654925] ? find_held_lock+0x36/0x1d0 [ 114.658965] ? lock_downgrade+0x7f0/0x7f0 [ 114.663111] ? __fget+0x1ca/0x2f0 [ 114.666547] ? __fget_light+0x166/0x200 [ 114.670502] ? __fdget+0xe/0x10 [ 114.673760] ? sockfd_lookup_light+0x1c/0x150 [ 114.678242] __sys_sendmsg+0xc1/0x140 [ 114.682016] ? SyS_shutdown+0x180/0x180 [ 114.686206] ? __sb_end_write+0xa4/0xd0 [ 114.690161] ? mutex_unlock+0xd/0x10 [ 114.693864] ? do_syscall_64+0x4c/0x5b0 [ 114.697877] ? __sys_sendmsg+0x140/0x140 [ 114.701910] SyS_sendmsg+0xd/0x20 [ 114.705439] do_syscall_64+0x1c7/0x5b0 [ 114.709300] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 114.714131] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 114.719324] RIP: 0033:0x45b399 [ 114.722498] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 114.730200] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 114.737458] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 114.744710] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 114.751960] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 114.759206] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 114.769141] batman_adv: batadv0: Adding interface: veth0_vlan [ 114.775250] batman_adv: batadv0: The MTU of interface veth0_vlan 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. [ 114.800388] batman_adv: batadv0: Interface activated: veth0_vlan [ 114.807515] FAULT_INJECTION: forcing a failure. [ 114.807515] name failslab, interval 1, probability 0, space 0, times 0 [ 114.820539] CPU: 0 PID: 8275 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 114.828795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.838143] Call Trace: [ 114.840741] dump_stack+0xf7/0x13b [ 114.844284] should_fail.cold.3+0x105/0x14b [ 114.848607] should_failslab+0xba/0xf0 [ 114.852580] kmem_cache_alloc_node_trace+0x279/0x780 [ 114.857679] __kmalloc_node_track_caller+0x3c/0x70 [ 114.862603] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 114.867370] __alloc_skb+0xc1/0x500 [ 114.870976] ? skb_trim+0x160/0x160 [ 114.874590] ? if_nlmsg_size+0x2d9/0x6f0 [ 114.878637] rtmsg_ifinfo_build_skb+0x68/0x120 [ 114.883200] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 114.888035] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 114.892956] rtnetlink_event+0xc2/0x110 [ 114.896948] notifier_call_chain+0xd6/0x150 [ 114.901252] raw_notifier_call_chain+0x11/0x20 [ 114.905819] call_netdevice_notifiers_info+0x4b/0x60 [ 114.910959] __netdev_upper_dev_link+0x18e/0x1f0 [ 114.915702] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 114.920463] netdev_master_upper_dev_link+0x14/0x20 [ 114.925609] batadv_hardif_enable_interface+0x1f4/0xa10 [ 114.930972] batadv_softif_slave_add+0x7f/0xd0 [ 114.935540] do_set_master+0x163/0x1f0 [ 114.939418] do_setlink+0x9dd/0x2c50 [ 114.943116] ? rtnl_register+0x20/0x20 [ 114.947112] ? __lock_acquire+0x6a4/0x4500 [ 114.951353] ? trace_hardirqs_off+0x10/0x10 [ 114.955669] rtnl_newlink+0xe0c/0x1390 [ 114.959545] ? rtnl_link_unregister+0x270/0x270 [ 114.964230] ? finish_task_switch+0x178/0x650 [ 114.968707] ? finish_task_switch+0x14d/0x650 [ 114.973187] ? find_held_lock+0x36/0x1d0 [ 114.977235] ? __mutex_lock+0x8b7/0x14c0 [ 114.981296] ? lock_downgrade+0x7f0/0x7f0 [ 114.985421] ? do_raw_spin_unlock+0x16a/0x250 [ 114.989932] rtnetlink_rcv_msg+0x34c/0x9e0 [ 114.994153] ? rtnl_bridge_getlink+0x760/0x760 [ 114.998720] ? find_held_lock+0x36/0x1d0 [ 115.002771] netlink_rcv_skb+0x133/0x370 [ 115.006815] ? rtnl_bridge_getlink+0x760/0x760 [ 115.011371] ? netlink_ack+0xa00/0xa00 [ 115.015249] ? netlink_deliver_tap+0x8e/0x920 [ 115.019752] rtnetlink_rcv+0x10/0x20 [ 115.023450] netlink_unicast+0x40b/0x600 [ 115.027508] ? netlink_attachskb+0x6d0/0x6d0 [ 115.031921] netlink_sendmsg+0x730/0xbd0 [ 115.035968] ? netlink_unicast+0x600/0x600 [ 115.040190] ? selinux_socket_sendmsg+0x31/0x40 [ 115.044862] ? security_socket_sendmsg+0x6a/0xa0 [ 115.049615] ? netlink_unicast+0x600/0x600 [ 115.053830] sock_sendmsg+0xb5/0xf0 [ 115.057439] ___sys_sendmsg+0x625/0x920 [ 115.061419] ? trace_hardirqs_off+0x10/0x10 [ 115.065736] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 115.070532] ? find_held_lock+0x36/0x1d0 [ 115.074580] ? lock_downgrade+0x7f0/0x7f0 [ 115.078716] ? __fget+0x1ca/0x2f0 [ 115.082150] ? __fget_light+0x166/0x200 [ 115.086109] ? __fdget+0xe/0x10 [ 115.089365] ? sockfd_lookup_light+0x1c/0x150 [ 115.093841] __sys_sendmsg+0xc1/0x140 [ 115.097623] ? SyS_shutdown+0x180/0x180 [ 115.101646] ? __sb_end_write+0xa4/0xd0 [ 115.105600] ? mutex_unlock+0xd/0x10 [ 115.109293] ? do_syscall_64+0x4c/0x5b0 [ 115.113248] ? __sys_sendmsg+0x140/0x140 [ 115.117290] SyS_sendmsg+0xd/0x20 [ 115.120728] do_syscall_64+0x1c7/0x5b0 [ 115.124611] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 115.129473] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 115.134661] RIP: 0033:0x45b399 [ 115.137873] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 115.145667] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 115.152914] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 115.160185] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 115.167433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 115.174684] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 115.184427] batman_adv: batadv0: Adding interface: veth0_to_hsr [ 115.190726] batman_adv: batadv0: The MTU of interface veth0_to_hsr 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. [ 115.216268] batman_adv: batadv0: Interface activated: veth0_to_hsr [ 115.223553] FAULT_INJECTION: forcing a failure. [ 115.223553] name failslab, interval 1, probability 0, space 0, times 0 [ 115.235189] CPU: 0 PID: 8282 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 115.242978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.252372] Call Trace: [ 115.254960] dump_stack+0xf7/0x13b [ 115.258499] should_fail.cold.3+0x105/0x14b [ 115.262820] should_failslab+0xba/0xf0 [ 115.266700] kmem_cache_alloc_node_trace+0x279/0x780 [ 115.271814] __kmalloc_node_track_caller+0x3c/0x70 [ 115.276739] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 115.281488] __alloc_skb+0xc1/0x500 [ 115.285098] ? skb_trim+0x160/0x160 [ 115.288708] ? if_nlmsg_size+0x2d9/0x6f0 [ 115.292746] rtmsg_ifinfo_build_skb+0x68/0x120 [ 115.297308] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 115.302133] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 115.307048] rtnetlink_event+0xc2/0x110 [ 115.311004] notifier_call_chain+0xd6/0x150 [ 115.315378] raw_notifier_call_chain+0x11/0x20 [ 115.320046] call_netdevice_notifiers_info+0x4b/0x60 [ 115.325150] __netdev_upper_dev_link+0x18e/0x1f0 [ 115.329906] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 115.334704] netdev_master_upper_dev_link+0x14/0x20 [ 115.339702] batadv_hardif_enable_interface+0x1f4/0xa10 [ 115.345054] batadv_softif_slave_add+0x7f/0xd0 [ 115.349623] do_set_master+0x163/0x1f0 [ 115.353506] do_setlink+0x9dd/0x2c50 [ 115.357201] ? find_held_lock+0x36/0x1d0 [ 115.361247] ? rtnl_register+0x20/0x20 [ 115.365115] ? load_balance+0xb38/0x2190 [ 115.369184] ? lock_downgrade+0x7f0/0x7f0 [ 115.373312] ? lock_pin_lock+0x340/0x340 [ 115.377358] ? __lock_acquire+0x6a4/0x4500 [ 115.381583] ? trace_hardirqs_off+0x10/0x10 [ 115.385894] ? __lock_is_held+0xb5/0x140 [ 115.389941] ? trace_hardirqs_off+0x10/0x10 [ 115.394270] rtnl_newlink+0xe0c/0x1390 [ 115.398150] ? rtnl_link_unregister+0x270/0x270 [ 115.402828] ? finish_task_switch+0x178/0x650 [ 115.407322] ? finish_task_switch+0x14d/0x650 [ 115.411796] ? find_held_lock+0x36/0x1d0 [ 115.415866] ? __mutex_lock+0x8b7/0x14c0 [ 115.419931] ? lock_downgrade+0x7f0/0x7f0 [ 115.424070] ? do_raw_spin_unlock+0x16a/0x250 [ 115.428590] rtnetlink_rcv_msg+0x34c/0x9e0 [ 115.432807] ? rtnl_bridge_getlink+0x760/0x760 [ 115.437365] ? find_held_lock+0x36/0x1d0 [ 115.441423] netlink_rcv_skb+0x133/0x370 [ 115.445468] ? rtnl_bridge_getlink+0x760/0x760 [ 115.450057] ? netlink_ack+0xa00/0xa00 [ 115.453932] ? netlink_deliver_tap+0x8e/0x920 [ 115.458406] rtnetlink_rcv+0x10/0x20 [ 115.462113] netlink_unicast+0x40b/0x600 [ 115.466164] ? netlink_attachskb+0x6d0/0x6d0 [ 115.470562] netlink_sendmsg+0x730/0xbd0 [ 115.474602] ? netlink_unicast+0x600/0x600 [ 115.478843] ? selinux_socket_sendmsg+0x31/0x40 [ 115.483509] ? security_socket_sendmsg+0x6a/0xa0 [ 115.488437] ? netlink_unicast+0x600/0x600 [ 115.492674] sock_sendmsg+0xb5/0xf0 [ 115.496289] ___sys_sendmsg+0x625/0x920 [ 115.500240] ? trace_hardirqs_off+0x10/0x10 [ 115.504547] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 115.509357] ? find_held_lock+0x36/0x1d0 [ 115.513409] ? lock_downgrade+0x7f0/0x7f0 [ 115.517543] ? __fget+0x1ca/0x2f0 [ 115.520994] ? __fget_light+0x166/0x200 [ 115.524955] ? __fdget+0xe/0x10 [ 115.528220] ? sockfd_lookup_light+0x1c/0x150 [ 115.532694] __sys_sendmsg+0xc1/0x140 [ 115.536556] ? SyS_shutdown+0x180/0x180 [ 115.540526] ? __sb_end_write+0xa4/0xd0 [ 115.544491] ? mutex_unlock+0xd/0x10 [ 115.548196] ? do_syscall_64+0x4c/0x5b0 [ 115.552153] ? __sys_sendmsg+0x140/0x140 [ 115.556198] SyS_sendmsg+0xd/0x20 [ 115.559631] do_syscall_64+0x1c7/0x5b0 [ 115.563502] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 115.568332] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 115.573607] RIP: 0033:0x45b399 [ 115.576779] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 115.584470] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 115.591721] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 115.598968] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 115.606219] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 115.613490] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 115.622683] batman_adv: batadv0: Adding interface: hsr_slave_0 [ 115.628853] batman_adv: batadv0: The MTU of interface hsr_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. [ 115.654198] batman_adv: batadv0: Interface activated: hsr_slave_0 [ 115.661285] FAULT_INJECTION: forcing a failure. [ 115.661285] name failslab, interval 1, probability 0, space 0, times 0 [ 115.683872] CPU: 1 PID: 8281 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 115.691690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 115.701043] Call Trace: [ 115.703625] dump_stack+0xf7/0x13b [ 115.707177] should_fail.cold.3+0x105/0x14b [ 115.711548] should_failslab+0xba/0xf0 [ 115.715417] kmem_cache_alloc_node_trace+0x279/0x780 [ 115.720510] __kmalloc_node_track_caller+0x3c/0x70 [ 115.725427] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 115.730159] __alloc_skb+0xc1/0x500 [ 115.733810] ? skb_trim+0x160/0x160 [ 115.737425] ? if_nlmsg_size+0x2d9/0x6f0 [ 115.741471] rtmsg_ifinfo_build_skb+0x68/0x120 [ 115.746041] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 115.750861] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 115.755774] rtnetlink_event+0xc2/0x110 [ 115.759766] notifier_call_chain+0xd6/0x150 [ 115.764085] raw_notifier_call_chain+0x11/0x20 [ 115.768652] call_netdevice_notifiers_info+0x4b/0x60 [ 115.773730] __netdev_upper_dev_link+0x18e/0x1f0 [ 115.778460] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 115.783196] netdev_master_upper_dev_link+0x14/0x20 [ 115.788202] batadv_hardif_enable_interface+0x1f4/0xa10 [ 115.793551] batadv_softif_slave_add+0x7f/0xd0 [ 115.798108] do_set_master+0x163/0x1f0 [ 115.801979] do_setlink+0x9dd/0x2c50 [ 115.805692] ? rtnl_register+0x20/0x20 [ 115.809563] ? __lock_acquire+0x6a4/0x4500 [ 115.813784] ? trace_hardirqs_off+0x10/0x10 [ 115.818093] rtnl_newlink+0xe0c/0x1390 [ 115.821961] ? rtnl_link_unregister+0x270/0x270 [ 115.826605] ? finish_task_switch+0x178/0x650 [ 115.831075] ? finish_task_switch+0x14d/0x650 [ 115.835547] ? find_held_lock+0x36/0x1d0 [ 115.839593] ? __mutex_lock+0x8b7/0x14c0 [ 115.843631] ? lock_downgrade+0x7f0/0x7f0 [ 115.847758] ? do_raw_spin_unlock+0x16a/0x250 [ 115.852242] rtnetlink_rcv_msg+0x34c/0x9e0 [ 115.856454] ? rtnl_bridge_getlink+0x760/0x760 [ 115.861018] ? find_held_lock+0x36/0x1d0 [ 115.865060] netlink_rcv_skb+0x133/0x370 [ 115.869099] ? rtnl_bridge_getlink+0x760/0x760 [ 115.873664] ? netlink_ack+0xa00/0xa00 [ 115.877537] ? netlink_deliver_tap+0x8e/0x920 [ 115.882028] rtnetlink_rcv+0x10/0x20 [ 115.885723] netlink_unicast+0x40b/0x600 [ 115.889798] ? netlink_attachskb+0x6d0/0x6d0 [ 115.894203] netlink_sendmsg+0x730/0xbd0 [ 115.898241] ? netlink_unicast+0x600/0x600 [ 115.902461] ? selinux_socket_sendmsg+0x31/0x40 [ 115.907116] ? security_socket_sendmsg+0x6a/0xa0 [ 115.911863] ? netlink_unicast+0x600/0x600 [ 115.916215] sock_sendmsg+0xb5/0xf0 [ 115.919829] ___sys_sendmsg+0x625/0x920 [ 115.923800] ? trace_hardirqs_off+0x10/0x10 [ 115.928107] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 115.932843] ? find_held_lock+0x36/0x1d0 [ 115.936881] ? lock_downgrade+0x7f0/0x7f0 [ 115.941029] ? __fget+0x1ca/0x2f0 [ 115.944462] ? __fget_light+0x166/0x200 [ 115.948416] ? __fdget+0xe/0x10 [ 115.951680] ? sockfd_lookup_light+0x1c/0x150 [ 115.956171] __sys_sendmsg+0xc1/0x140 [ 115.959952] ? SyS_shutdown+0x180/0x180 [ 115.963904] ? __sb_end_write+0xa4/0xd0 [ 115.967857] ? mutex_unlock+0xd/0x10 [ 115.971554] ? do_syscall_64+0x4c/0x5b0 [ 115.975529] ? __sys_sendmsg+0x140/0x140 [ 115.979583] SyS_sendmsg+0xd/0x20 [ 115.983014] do_syscall_64+0x1c7/0x5b0 [ 115.986888] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 115.991734] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 115.996907] RIP: 0033:0x45b399 [ 116.000080] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.007763] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 116.015012] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 116.022267] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 116.029517] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 116.037116] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 116.046247] batman_adv: batadv0: Adding interface: veth1_to_hsr [ 116.052308] batman_adv: batadv0: The MTU of interface veth1_to_hsr 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. [ 116.078582] batman_adv: batadv0: Interface activated: veth1_to_hsr [ 116.085707] FAULT_INJECTION: forcing a failure. [ 116.085707] name failslab, interval 1, probability 0, space 0, times 0 [ 116.098191] CPU: 1 PID: 8288 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 116.105989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.115333] Call Trace: [ 116.117913] dump_stack+0xf7/0x13b [ 116.121447] should_fail.cold.3+0x105/0x14b [ 116.125765] should_failslab+0xba/0xf0 [ 116.129649] kmem_cache_alloc_node+0x287/0x790 [ 116.134237] __alloc_skb+0x92/0x500 [ 116.137852] ? skb_trim+0x160/0x160 [ 116.141458] ? if_nlmsg_size+0x2d9/0x6f0 [ 116.145515] rtmsg_ifinfo_build_skb+0x68/0x120 [ 116.150072] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 116.154903] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 116.159834] rtnetlink_event+0xc2/0x110 [ 116.163784] notifier_call_chain+0xd6/0x150 [ 116.168082] raw_notifier_call_chain+0x11/0x20 [ 116.172638] call_netdevice_notifiers_info+0x4b/0x60 [ 116.177714] __netdev_upper_dev_link+0x18e/0x1f0 [ 116.182451] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 116.187201] netdev_master_upper_dev_link+0x14/0x20 [ 116.192193] batadv_hardif_enable_interface+0x1f4/0xa10 [ 116.197542] batadv_softif_slave_add+0x7f/0xd0 [ 116.202101] do_set_master+0x163/0x1f0 [ 116.205971] do_setlink+0x9dd/0x2c50 [ 116.209660] ? __lock_acquire+0x6a4/0x4500 [ 116.213870] ? rtnl_register+0x20/0x20 [ 116.217735] ? trace_hardirqs_on+0x10/0x10 [ 116.221950] ? trace_hardirqs_off+0x10/0x10 [ 116.226247] ? __lock_acquire+0x6a4/0x4500 [ 116.230635] ? trace_hardirqs_off+0x10/0x10 [ 116.234934] ? __lock_is_held+0xb5/0x140 [ 116.238967] ? trace_hardirqs_off+0x10/0x10 [ 116.243265] ? trace_hardirqs_off+0x10/0x10 [ 116.247576] rtnl_newlink+0xe0c/0x1390 [ 116.251444] ? rtnl_link_unregister+0x270/0x270 [ 116.256092] ? finish_task_switch+0x178/0x650 [ 116.260570] ? finish_task_switch+0x14d/0x650 [ 116.265046] ? find_held_lock+0x36/0x1d0 [ 116.269107] ? __mutex_lock+0x8b7/0x14c0 [ 116.273143] ? lock_downgrade+0x7f0/0x7f0 [ 116.277282] ? do_raw_spin_unlock+0x16a/0x250 [ 116.281772] rtnetlink_rcv_msg+0x34c/0x9e0 [ 116.285982] ? rtnl_bridge_getlink+0x760/0x760 [ 116.290562] ? find_held_lock+0x36/0x1d0 [ 116.294608] netlink_rcv_skb+0x133/0x370 [ 116.298650] ? rtnl_bridge_getlink+0x760/0x760 [ 116.303229] ? netlink_ack+0xa00/0xa00 [ 116.307111] ? netlink_deliver_tap+0x8e/0x920 [ 116.311592] rtnetlink_rcv+0x10/0x20 [ 116.315278] netlink_unicast+0x40b/0x600 [ 116.319576] ? netlink_attachskb+0x6d0/0x6d0 [ 116.324064] netlink_sendmsg+0x730/0xbd0 [ 116.328109] ? netlink_unicast+0x600/0x600 [ 116.332327] ? selinux_socket_sendmsg+0x31/0x40 [ 116.336970] ? security_socket_sendmsg+0x6a/0xa0 [ 116.341715] ? netlink_unicast+0x600/0x600 [ 116.345943] sock_sendmsg+0xb5/0xf0 [ 116.349544] ___sys_sendmsg+0x625/0x920 [ 116.353492] ? trace_hardirqs_off+0x10/0x10 [ 116.357797] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 116.362621] ? find_held_lock+0x36/0x1d0 [ 116.366662] ? lock_downgrade+0x7f0/0x7f0 [ 116.370813] ? __fget+0x1ca/0x2f0 [ 116.374362] ? __fget_light+0x166/0x200 [ 116.378326] ? __fdget+0xe/0x10 [ 116.381592] ? sockfd_lookup_light+0x1c/0x150 [ 116.386073] __sys_sendmsg+0xc1/0x140 [ 116.389868] ? SyS_shutdown+0x180/0x180 [ 116.394128] ? __sb_end_write+0xa4/0xd0 [ 116.398081] ? mutex_unlock+0xd/0x10 [ 116.401781] ? do_syscall_64+0x4c/0x5b0 [ 116.405735] ? __sys_sendmsg+0x140/0x140 [ 116.409771] SyS_sendmsg+0xd/0x20 [ 116.413215] do_syscall_64+0x1c7/0x5b0 [ 116.417129] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 116.422017] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 116.427279] RIP: 0033:0x45b399 [ 116.431405] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.439087] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 116.446386] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 116.453752] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 116.461005] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 116.468281] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 116.477250] batman_adv: batadv0: Adding interface: veth1_to_hsr [ 116.483352] batman_adv: batadv0: The MTU of interface veth1_to_hsr 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. [ 116.508412] batman_adv: batadv0: Interface activated: veth1_to_hsr [ 116.515577] FAULT_INJECTION: forcing a failure. [ 116.515577] name failslab, interval 1, probability 0, space 0, times 0 [ 116.535615] CPU: 1 PID: 8293 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 116.543410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.552766] Call Trace: [ 116.555351] dump_stack+0xf7/0x13b [ 116.558891] should_fail.cold.3+0x105/0x14b [ 116.563288] should_failslab+0xba/0xf0 [ 116.567170] kmem_cache_alloc_node_trace+0x279/0x780 [ 116.572815] __kmalloc_node_track_caller+0x3c/0x70 [ 116.577751] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 116.582628] __alloc_skb+0xc1/0x500 [ 116.586243] ? skb_trim+0x160/0x160 [ 116.589852] ? if_nlmsg_size+0x2d9/0x6f0 [ 116.593896] rtmsg_ifinfo_build_skb+0x68/0x120 [ 116.598605] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 116.603432] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 116.608417] rtnetlink_event+0xc2/0x110 [ 116.612486] notifier_call_chain+0xd6/0x150 [ 116.616812] raw_notifier_call_chain+0x11/0x20 [ 116.621390] call_netdevice_notifiers_info+0x4b/0x60 [ 116.626473] __netdev_upper_dev_link+0x18e/0x1f0 [ 116.631213] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 116.635949] netdev_master_upper_dev_link+0x14/0x20 [ 116.640946] batadv_hardif_enable_interface+0x1f4/0xa10 [ 116.646299] batadv_softif_slave_add+0x7f/0xd0 [ 116.650870] do_set_master+0x163/0x1f0 [ 116.654741] do_setlink+0x9dd/0x2c50 [ 116.658434] ? find_held_lock+0x36/0x1d0 [ 116.662575] ? rtnl_register+0x20/0x20 [ 116.666434] ? load_balance+0xb38/0x2190 [ 116.670491] ? lock_downgrade+0x7f0/0x7f0 [ 116.674632] ? lock_pin_lock+0x340/0x340 [ 116.678683] ? __lock_acquire+0x6a4/0x4500 [ 116.682897] ? trace_hardirqs_off+0x10/0x10 [ 116.687204] ? __lock_is_held+0xb5/0x140 [ 116.691241] ? trace_hardirqs_off+0x10/0x10 [ 116.695541] rtnl_newlink+0xe0c/0x1390 [ 116.699415] ? rtnl_link_unregister+0x270/0x270 [ 116.704064] ? finish_task_switch+0x178/0x650 [ 116.708543] ? finish_task_switch+0x14d/0x650 [ 116.713026] ? find_held_lock+0x36/0x1d0 [ 116.717066] ? __mutex_lock+0x8b7/0x14c0 [ 116.721108] ? lock_downgrade+0x7f0/0x7f0 [ 116.725230] ? do_raw_spin_unlock+0x16a/0x250 [ 116.729714] rtnetlink_rcv_msg+0x34c/0x9e0 [ 116.733932] ? rtnl_bridge_getlink+0x760/0x760 [ 116.738490] ? find_held_lock+0x36/0x1d0 [ 116.743158] netlink_rcv_skb+0x133/0x370 [ 116.747195] ? rtnl_bridge_getlink+0x760/0x760 [ 116.751759] ? netlink_ack+0xa00/0xa00 [ 116.755624] ? netlink_deliver_tap+0x8e/0x920 [ 116.760094] rtnetlink_rcv+0x10/0x20 [ 116.763785] netlink_unicast+0x40b/0x600 [ 116.767841] ? netlink_attachskb+0x6d0/0x6d0 [ 116.772236] netlink_sendmsg+0x730/0xbd0 [ 116.776273] ? netlink_unicast+0x600/0x600 [ 116.780568] ? selinux_socket_sendmsg+0x31/0x40 [ 116.785237] ? security_socket_sendmsg+0x6a/0xa0 [ 116.789978] ? netlink_unicast+0x600/0x600 [ 116.794193] sock_sendmsg+0xb5/0xf0 [ 116.797807] ___sys_sendmsg+0x625/0x920 [ 116.801755] ? trace_hardirqs_off+0x10/0x10 [ 116.806053] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 116.810782] ? find_held_lock+0x36/0x1d0 [ 116.814819] ? lock_downgrade+0x7f0/0x7f0 [ 116.818954] ? __fget+0x1ca/0x2f0 [ 116.822389] ? __fget_light+0x166/0x200 [ 116.826335] ? __fdget+0xe/0x10 [ 116.829593] ? sockfd_lookup_light+0x1c/0x150 [ 116.834061] __sys_sendmsg+0xc1/0x140 [ 116.838015] ? SyS_shutdown+0x180/0x180 [ 116.841963] ? __sb_end_write+0xa4/0xd0 [ 116.845948] ? mutex_unlock+0xd/0x10 [ 116.849644] ? do_syscall_64+0x4c/0x5b0 [ 116.853600] ? __sys_sendmsg+0x140/0x140 [ 116.857721] SyS_sendmsg+0xd/0x20 [ 116.861147] do_syscall_64+0x1c7/0x5b0 [ 116.865109] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 116.869927] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 116.875093] RIP: 0033:0x45b399 [ 116.879229] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.886909] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 116.894170] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 116.901419] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 116.908663] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 116.916797] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 116.925265] batman_adv: batadv0: Adding interface: veth1_virt_wifi [ 116.931591] batman_adv: batadv0: The MTU of interface veth1_virt_wifi 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. [ 116.956974] batman_adv: batadv0: Interface activated: veth1_virt_wifi [ 116.964446] FAULT_INJECTION: forcing a failure. [ 116.964446] name failslab, interval 1, probability 0, space 0, times 0 [ 116.983554] CPU: 1 PID: 8297 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 116.991354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.000702] Call Trace: [ 117.003283] dump_stack+0xf7/0x13b [ 117.006821] should_fail.cold.3+0x105/0x14b [ 117.011141] should_failslab+0xba/0xf0 [ 117.015024] kmem_cache_alloc_node_trace+0x279/0x780 [ 117.020122] __kmalloc_node_track_caller+0x3c/0x70 [ 117.025128] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 117.029878] __alloc_skb+0xc1/0x500 [ 117.033488] ? skb_trim+0x160/0x160 [ 117.037110] ? if_nlmsg_size+0x2d9/0x6f0 [ 117.041146] rtmsg_ifinfo_build_skb+0x68/0x120 [ 117.045703] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 117.050523] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 117.055437] rtnetlink_event+0xc2/0x110 [ 117.059387] notifier_call_chain+0xd6/0x150 [ 117.063696] raw_notifier_call_chain+0x11/0x20 [ 117.068261] call_netdevice_notifiers_info+0x4b/0x60 [ 117.073344] __netdev_upper_dev_link+0x18e/0x1f0 [ 117.078077] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 117.082817] netdev_master_upper_dev_link+0x14/0x20 [ 117.087809] batadv_hardif_enable_interface+0x1f4/0xa10 [ 117.093236] batadv_softif_slave_add+0x7f/0xd0 [ 117.097792] do_set_master+0x163/0x1f0 [ 117.101677] do_setlink+0x9dd/0x2c50 [ 117.105475] ? rtnl_register+0x20/0x20 [ 117.109341] ? __lock_acquire+0x6a4/0x4500 [ 117.113555] ? trace_hardirqs_off+0x10/0x10 [ 117.117859] rtnl_newlink+0xe0c/0x1390 [ 117.121734] ? rtnl_link_unregister+0x270/0x270 [ 117.126389] ? finish_task_switch+0x178/0x650 [ 117.130858] ? finish_task_switch+0x14d/0x650 [ 117.135341] ? find_held_lock+0x36/0x1d0 [ 117.139381] ? __mutex_lock+0x8b7/0x14c0 [ 117.143419] ? lock_downgrade+0x7f0/0x7f0 [ 117.147564] ? do_raw_spin_unlock+0x16a/0x250 [ 117.152056] rtnetlink_rcv_msg+0x34c/0x9e0 [ 117.156268] ? rtnl_bridge_getlink+0x760/0x760 [ 117.160827] ? find_held_lock+0x36/0x1d0 [ 117.164891] netlink_rcv_skb+0x133/0x370 [ 117.168929] ? rtnl_bridge_getlink+0x760/0x760 [ 117.173496] ? netlink_ack+0xa00/0xa00 [ 117.177370] ? netlink_deliver_tap+0x8e/0x920 [ 117.181853] rtnetlink_rcv+0x10/0x20 [ 117.185543] netlink_unicast+0x40b/0x600 [ 117.189604] ? netlink_attachskb+0x6d0/0x6d0 [ 117.193989] netlink_sendmsg+0x730/0xbd0 [ 117.198033] ? netlink_unicast+0x600/0x600 [ 117.202250] ? selinux_socket_sendmsg+0x31/0x40 [ 117.206899] ? security_socket_sendmsg+0x6a/0xa0 [ 117.211636] ? netlink_unicast+0x600/0x600 [ 117.215845] sock_sendmsg+0xb5/0xf0 [ 117.219446] ___sys_sendmsg+0x625/0x920 [ 117.223395] ? trace_hardirqs_off+0x10/0x10 [ 117.227703] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 117.232438] ? find_held_lock+0x36/0x1d0 [ 117.236483] ? lock_downgrade+0x7f0/0x7f0 [ 117.240609] ? __fget+0x1ca/0x2f0 [ 117.244038] ? __fget_light+0x166/0x200 [ 117.248007] ? __fdget+0xe/0x10 [ 117.251258] ? sockfd_lookup_light+0x1c/0x150 [ 117.255731] __sys_sendmsg+0xc1/0x140 [ 117.259510] ? SyS_shutdown+0x180/0x180 [ 117.263468] ? __sb_end_write+0xa4/0xd0 [ 117.267434] ? mutex_unlock+0xd/0x10 [ 117.271133] ? do_syscall_64+0x4c/0x5b0 [ 117.275088] ? __sys_sendmsg+0x140/0x140 [ 117.279121] SyS_sendmsg+0xd/0x20 [ 117.282553] do_syscall_64+0x1c7/0x5b0 [ 117.286435] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 117.291279] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 117.296446] RIP: 0033:0x45b399 [ 117.299611] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 117.307295] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 117.314538] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 117.321781] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 117.329042] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 117.336301] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 117.344990] batman_adv: batadv0: Adding interface: vlan1 [ 117.350444] batman_adv: batadv0: The MTU of interface vlan1 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. [ 117.374911] batman_adv: batadv0: Interface activated: vlan1 [ 117.381386] FAULT_INJECTION: forcing a failure. [ 117.381386] name failslab, interval 1, probability 0, space 0, times 0 [ 117.394073] CPU: 1 PID: 8301 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 117.401883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.411234] Call Trace: [ 117.413825] dump_stack+0xf7/0x13b [ 117.417364] should_fail.cold.3+0x105/0x14b [ 117.421682] should_failslab+0xba/0xf0 [ 117.425575] kmem_cache_alloc_node_trace+0x279/0x780 [ 117.430852] __kmalloc_node_track_caller+0x3c/0x70 [ 117.435861] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 117.440700] __alloc_skb+0xc1/0x500 [ 117.444330] ? skb_trim+0x160/0x160 [ 117.447951] ? if_nlmsg_size+0x2d9/0x6f0 [ 117.452005] rtmsg_ifinfo_build_skb+0x68/0x120 [ 117.456572] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 117.461549] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 117.466460] rtnetlink_event+0xc2/0x110 [ 117.470414] notifier_call_chain+0xd6/0x150 [ 117.474912] raw_notifier_call_chain+0x11/0x20 [ 117.479478] call_netdevice_notifiers_info+0x4b/0x60 [ 117.484555] __netdev_upper_dev_link+0x18e/0x1f0 [ 117.489290] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 117.494198] netdev_master_upper_dev_link+0x14/0x20 [ 117.499194] batadv_hardif_enable_interface+0x1f4/0xa10 [ 117.504593] batadv_softif_slave_add+0x7f/0xd0 [ 117.509162] do_set_master+0x163/0x1f0 [ 117.513032] do_setlink+0x9dd/0x2c50 [ 117.516718] ? find_held_lock+0x36/0x1d0 [ 117.520753] ? rtnl_register+0x20/0x20 [ 117.524621] ? load_balance+0xb38/0x2190 [ 117.528665] ? lock_downgrade+0x7f0/0x7f0 [ 117.532786] ? lock_pin_lock+0x340/0x340 [ 117.536831] ? __lock_acquire+0x6a4/0x4500 [ 117.541179] ? trace_hardirqs_off+0x10/0x10 [ 117.545544] ? __lock_is_held+0xb5/0x140 [ 117.549582] ? trace_hardirqs_off+0x10/0x10 [ 117.553905] rtnl_newlink+0xe0c/0x1390 [ 117.557890] ? rtnl_link_unregister+0x270/0x270 [ 117.562548] ? finish_task_switch+0x178/0x650 [ 117.567024] ? finish_task_switch+0x14d/0x650 [ 117.571504] ? find_held_lock+0x36/0x1d0 [ 117.575552] ? __mutex_lock+0x8b7/0x14c0 [ 117.579601] ? lock_downgrade+0x7f0/0x7f0 [ 117.583737] ? do_raw_spin_unlock+0x16a/0x250 [ 117.588250] rtnetlink_rcv_msg+0x34c/0x9e0 [ 117.592466] ? rtnl_bridge_getlink+0x760/0x760 [ 117.597021] ? find_held_lock+0x36/0x1d0 [ 117.601074] netlink_rcv_skb+0x133/0x370 [ 117.605110] ? rtnl_bridge_getlink+0x760/0x760 [ 117.609668] ? netlink_ack+0xa00/0xa00 [ 117.613534] ? netlink_deliver_tap+0x8e/0x920 [ 117.618015] rtnetlink_rcv+0x10/0x20 [ 117.621702] netlink_unicast+0x40b/0x600 [ 117.625740] ? netlink_attachskb+0x6d0/0x6d0 [ 117.630136] netlink_sendmsg+0x730/0xbd0 [ 117.634174] ? netlink_unicast+0x600/0x600 [ 117.638400] ? selinux_socket_sendmsg+0x31/0x40 [ 117.643051] ? security_socket_sendmsg+0x6a/0xa0 [ 117.647816] ? netlink_unicast+0x600/0x600 [ 117.652037] sock_sendmsg+0xb5/0xf0 [ 117.655651] ___sys_sendmsg+0x625/0x920 [ 117.659598] ? trace_hardirqs_off+0x10/0x10 [ 117.663908] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 117.668639] ? find_held_lock+0x36/0x1d0 [ 117.672686] ? lock_downgrade+0x7f0/0x7f0 [ 117.676916] ? __fget+0x1ca/0x2f0 [ 117.680365] ? __fget_light+0x166/0x200 [ 117.684317] ? __fdget+0xe/0x10 [ 117.687570] ? sockfd_lookup_light+0x1c/0x150 [ 117.692038] __sys_sendmsg+0xc1/0x140 [ 117.695823] ? SyS_shutdown+0x180/0x180 [ 117.699771] ? __sb_end_write+0xa4/0xd0 [ 117.703731] ? mutex_unlock+0xd/0x10 [ 117.707429] ? do_syscall_64+0x4c/0x5b0 [ 117.711569] ? __sys_sendmsg+0x140/0x140 [ 117.715603] SyS_sendmsg+0xd/0x20 [ 117.719032] do_syscall_64+0x1c7/0x5b0 [ 117.722889] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 117.727781] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 117.732957] RIP: 0033:0x45b399 [ 117.736128] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 117.743815] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 117.751172] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 117.758422] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 117.767843] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 117.775357] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 117.784729] batman_adv: batadv0: Adding interface: veth1_to_hsr [ 117.790793] batman_adv: batadv0: The MTU of interface veth1_to_hsr 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. [ 117.816614] batman_adv: batadv0: Interface activated: veth1_to_hsr [ 117.823864] FAULT_INJECTION: forcing a failure. [ 117.823864] name failslab, interval 1, probability 0, space 0, times 0 [ 117.850955] CPU: 0 PID: 8303 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 117.858950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 117.868292] Call Trace: [ 117.870860] dump_stack+0xf7/0x13b [ 117.874473] should_fail.cold.3+0x105/0x14b [ 117.878787] should_failslab+0xba/0xf0 [ 117.882681] kmem_cache_alloc_node_trace+0x279/0x780 [ 117.887765] __kmalloc_node_track_caller+0x3c/0x70 [ 117.892672] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 117.897500] __alloc_skb+0xc1/0x500 [ 117.901113] ? skb_trim+0x160/0x160 [ 117.904715] ? if_nlmsg_size+0x2d9/0x6f0 [ 117.908753] rtmsg_ifinfo_build_skb+0x68/0x120 [ 117.913413] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 117.918231] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 117.923134] rtnetlink_event+0xc2/0x110 [ 117.927083] notifier_call_chain+0xd6/0x150 [ 117.931386] raw_notifier_call_chain+0x11/0x20 [ 117.935950] call_netdevice_notifiers_info+0x4b/0x60 [ 117.941121] __netdev_upper_dev_link+0x18e/0x1f0 [ 117.945852] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 117.950584] netdev_master_upper_dev_link+0x14/0x20 [ 117.955584] batadv_hardif_enable_interface+0x1f4/0xa10 [ 117.960932] batadv_softif_slave_add+0x7f/0xd0 [ 117.965503] do_set_master+0x163/0x1f0 [ 117.969390] do_setlink+0x9dd/0x2c50 [ 117.973130] ? find_held_lock+0x36/0x1d0 [ 117.977188] ? rtnl_register+0x20/0x20 [ 117.981176] ? load_balance+0xb38/0x2190 [ 117.985338] ? lock_downgrade+0x7f0/0x7f0 [ 117.989488] ? lock_pin_lock+0x340/0x340 [ 117.993559] ? __lock_acquire+0x6a4/0x4500 [ 117.997778] ? trace_hardirqs_off+0x10/0x10 [ 118.002084] ? __lock_is_held+0xb5/0x140 [ 118.006220] ? trace_hardirqs_off+0x10/0x10 [ 118.010525] rtnl_newlink+0xe0c/0x1390 [ 118.014410] ? rtnl_link_unregister+0x270/0x270 [ 118.019058] ? finish_task_switch+0x178/0x650 [ 118.023530] ? finish_task_switch+0x14d/0x650 [ 118.028007] ? find_held_lock+0x36/0x1d0 [ 118.032065] ? __mutex_lock+0x8b7/0x14c0 [ 118.036122] ? lock_downgrade+0x7f0/0x7f0 [ 118.040258] ? do_raw_spin_unlock+0x16a/0x250 [ 118.044748] rtnetlink_rcv_msg+0x34c/0x9e0 [ 118.048959] ? rtnl_bridge_getlink+0x760/0x760 [ 118.053525] ? find_held_lock+0x36/0x1d0 [ 118.057583] netlink_rcv_skb+0x133/0x370 [ 118.061630] ? rtnl_bridge_getlink+0x760/0x760 [ 118.066192] ? netlink_ack+0xa00/0xa00 [ 118.070054] ? netlink_deliver_tap+0x8e/0x920 [ 118.074536] rtnetlink_rcv+0x10/0x20 [ 118.078232] netlink_unicast+0x40b/0x600 [ 118.082273] ? netlink_attachskb+0x6d0/0x6d0 [ 118.086679] netlink_sendmsg+0x730/0xbd0 [ 118.090723] ? netlink_unicast+0x600/0x600 [ 118.094949] ? selinux_socket_sendmsg+0x31/0x40 [ 118.099617] ? security_socket_sendmsg+0x6a/0xa0 [ 118.104347] ? netlink_unicast+0x600/0x600 [ 118.108567] sock_sendmsg+0xb5/0xf0 [ 118.112311] ___sys_sendmsg+0x625/0x920 [ 118.116307] ? trace_hardirqs_off+0x10/0x10 [ 118.120619] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 118.125355] ? find_held_lock+0x36/0x1d0 [ 118.129497] ? lock_downgrade+0x7f0/0x7f0 [ 118.133631] ? __fget+0x1ca/0x2f0 [ 118.137074] ? __fget_light+0x166/0x200 [ 118.141041] ? __fdget+0xe/0x10 [ 118.144435] ? sockfd_lookup_light+0x1c/0x150 [ 118.148936] __sys_sendmsg+0xc1/0x140 [ 118.152723] ? SyS_shutdown+0x180/0x180 [ 118.156685] ? __sb_end_write+0xa4/0xd0 [ 118.160670] ? mutex_unlock+0xd/0x10 [ 118.164393] ? do_syscall_64+0x4c/0x5b0 [ 118.168364] ? __sys_sendmsg+0x140/0x140 [ 118.172413] SyS_sendmsg+0xd/0x20 [ 118.175851] do_syscall_64+0x1c7/0x5b0 [ 118.179718] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 118.184541] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 118.189751] RIP: 0033:0x45b399 [ 118.193024] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 118.200719] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 118.207967] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 118.215232] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 118.222494] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 118.229741] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 118.242024] batman_adv: batadv0: Adding interface: hsr_slave_1 [ 118.248367] batman_adv: batadv0: The MTU of interface hsr_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. [ 118.274496] batman_adv: batadv0: Interface activated: hsr_slave_1 [ 118.281547] FAULT_INJECTION: forcing a failure. [ 118.281547] name failslab, interval 1, probability 0, space 0, times 0 [ 118.297863] CPU: 0 PID: 8309 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 118.305678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.315061] Call Trace: [ 118.317646] dump_stack+0xf7/0x13b [ 118.321195] should_fail.cold.3+0x105/0x14b [ 118.325551] should_failslab+0xba/0xf0 [ 118.329430] kmem_cache_alloc_node+0x287/0x790 [ 118.334013] __alloc_skb+0x92/0x500 [ 118.337615] ? skb_trim+0x160/0x160 [ 118.341240] ? if_nlmsg_size+0x2d9/0x6f0 [ 118.345284] rtmsg_ifinfo_build_skb+0x68/0x120 [ 118.349919] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 118.354741] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 118.359646] rtnetlink_event+0xc2/0x110 [ 118.363608] notifier_call_chain+0xd6/0x150 [ 118.367920] raw_notifier_call_chain+0x11/0x20 [ 118.372499] call_netdevice_notifiers_info+0x4b/0x60 [ 118.377588] __netdev_upper_dev_link+0x18e/0x1f0 [ 118.382319] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 118.387166] netdev_master_upper_dev_link+0x14/0x20 [ 118.392182] batadv_hardif_enable_interface+0x1f4/0xa10 [ 118.397569] batadv_softif_slave_add+0x7f/0xd0 [ 118.402142] do_set_master+0x163/0x1f0 [ 118.406008] do_setlink+0x9dd/0x2c50 [ 118.409713] ? rtnl_register+0x20/0x20 [ 118.413620] ? __lock_acquire+0x6a4/0x4500 [ 118.417854] ? trace_hardirqs_off+0x10/0x10 [ 118.422254] rtnl_newlink+0xe0c/0x1390 [ 118.426134] ? rtnl_link_unregister+0x270/0x270 [ 118.430782] ? finish_task_switch+0x178/0x650 [ 118.435265] ? finish_task_switch+0x14d/0x650 [ 118.439744] ? find_held_lock+0x36/0x1d0 [ 118.443811] ? __mutex_lock+0x8b7/0x14c0 [ 118.447852] ? lock_downgrade+0x7f0/0x7f0 [ 118.451979] ? do_raw_spin_unlock+0x16a/0x250 [ 118.456474] rtnetlink_rcv_msg+0x34c/0x9e0 [ 118.460698] ? rtnl_bridge_getlink+0x760/0x760 [ 118.465274] ? find_held_lock+0x36/0x1d0 [ 118.469326] netlink_rcv_skb+0x133/0x370 [ 118.473452] ? rtnl_bridge_getlink+0x760/0x760 [ 118.478009] ? netlink_ack+0xa00/0xa00 [ 118.481899] ? netlink_deliver_tap+0x8e/0x920 [ 118.486386] rtnetlink_rcv+0x10/0x20 [ 118.490075] netlink_unicast+0x40b/0x600 [ 118.494126] ? netlink_attachskb+0x6d0/0x6d0 [ 118.498510] netlink_sendmsg+0x730/0xbd0 [ 118.502718] ? netlink_unicast+0x600/0x600 [ 118.506928] ? selinux_socket_sendmsg+0x31/0x40 [ 118.511572] ? security_socket_sendmsg+0x6a/0xa0 [ 118.516308] ? netlink_unicast+0x600/0x600 [ 118.520537] sock_sendmsg+0xb5/0xf0 [ 118.524141] ___sys_sendmsg+0x625/0x920 [ 118.528097] ? trace_hardirqs_off+0x10/0x10 [ 118.532844] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 118.537705] ? find_held_lock+0x36/0x1d0 [ 118.541751] ? lock_downgrade+0x7f0/0x7f0 [ 118.545886] ? __fget+0x1ca/0x2f0 [ 118.549387] ? __fget_light+0x166/0x200 [ 118.553338] ? __fdget+0xe/0x10 [ 118.556595] ? sockfd_lookup_light+0x1c/0x150 [ 118.561119] __sys_sendmsg+0xc1/0x140 [ 118.564901] ? SyS_shutdown+0x180/0x180 [ 118.568858] ? __sb_end_write+0xa4/0xd0 [ 118.572821] ? mutex_unlock+0xd/0x10 [ 118.576512] ? do_syscall_64+0x4c/0x5b0 [ 118.580475] ? __sys_sendmsg+0x140/0x140 [ 118.584509] SyS_sendmsg+0xd/0x20 [ 118.587938] do_syscall_64+0x1c7/0x5b0 [ 118.591799] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 118.596634] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 118.601798] RIP: 0033:0x45b399 [ 118.604965] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 118.612678] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 118.619925] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 118.627178] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 118.634422] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 118.641677] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 118.650987] batman_adv: batadv0: Adding interface: hsr0 [ 118.656425] batman_adv: batadv0: The MTU of interface hsr0 is too small (1494) 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. [ 118.680782] batman_adv: batadv0: Interface activated: hsr0 [ 118.687235] FAULT_INJECTION: forcing a failure. [ 118.687235] name failslab, interval 1, probability 0, space 0, times 0 [ 118.699749] CPU: 0 PID: 8313 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 118.707549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 118.716908] Call Trace: [ 118.719489] dump_stack+0xf7/0x13b [ 118.723029] should_fail.cold.3+0x105/0x14b [ 118.727348] should_failslab+0xba/0xf0 [ 118.736704] kmem_cache_alloc_node_trace+0x279/0x780 [ 118.741815] __kmalloc_node_track_caller+0x3c/0x70 [ 118.746748] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 118.751500] __alloc_skb+0xc1/0x500 [ 118.755109] ? skb_trim+0x160/0x160 [ 118.758712] ? if_nlmsg_size+0x2d9/0x6f0 [ 118.762771] rtmsg_ifinfo_build_skb+0x68/0x120 [ 118.767330] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 118.772153] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 118.777081] rtnetlink_event+0xc2/0x110 [ 118.781044] notifier_call_chain+0xd6/0x150 [ 118.785350] raw_notifier_call_chain+0x11/0x20 [ 118.789917] call_netdevice_notifiers_info+0x4b/0x60 [ 118.794996] __netdev_upper_dev_link+0x18e/0x1f0 [ 118.799732] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 118.804494] netdev_master_upper_dev_link+0x14/0x20 [ 118.809493] batadv_hardif_enable_interface+0x1f4/0xa10 [ 118.814842] batadv_softif_slave_add+0x7f/0xd0 [ 118.819400] do_set_master+0x163/0x1f0 [ 118.823377] do_setlink+0x9dd/0x2c50 [ 118.827070] ? rtnl_register+0x20/0x20 [ 118.830938] ? __lock_acquire+0x6a4/0x4500 [ 118.835167] ? trace_hardirqs_off+0x10/0x10 [ 118.839476] rtnl_newlink+0xe0c/0x1390 [ 118.843342] ? rtnl_link_unregister+0x270/0x270 [ 118.848000] ? finish_task_switch+0x178/0x650 [ 118.852470] ? finish_task_switch+0x14d/0x650 [ 118.856945] ? find_held_lock+0x36/0x1d0 [ 118.860986] ? __mutex_lock+0x8b7/0x14c0 [ 118.865046] ? lock_downgrade+0x7f0/0x7f0 [ 118.869178] ? do_raw_spin_unlock+0x16a/0x250 [ 118.873673] rtnetlink_rcv_msg+0x34c/0x9e0 [ 118.877912] ? rtnl_bridge_getlink+0x760/0x760 [ 118.882469] ? find_held_lock+0x36/0x1d0 [ 118.886515] netlink_rcv_skb+0x133/0x370 [ 118.890570] ? rtnl_bridge_getlink+0x760/0x760 [ 118.895133] ? netlink_ack+0xa00/0xa00 [ 118.899440] ? netlink_deliver_tap+0x8e/0x920 [ 118.903926] rtnetlink_rcv+0x10/0x20 [ 118.907636] netlink_unicast+0x40b/0x600 [ 118.911705] ? netlink_attachskb+0x6d0/0x6d0 [ 118.916100] netlink_sendmsg+0x730/0xbd0 [ 118.920141] ? netlink_unicast+0x600/0x600 [ 118.924369] ? selinux_socket_sendmsg+0x31/0x40 [ 118.929210] ? security_socket_sendmsg+0x6a/0xa0 [ 118.933947] ? netlink_unicast+0x600/0x600 [ 118.938175] sock_sendmsg+0xb5/0xf0 [ 118.941780] ___sys_sendmsg+0x625/0x920 [ 118.945737] ? trace_hardirqs_off+0x10/0x10 [ 118.950041] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 118.954786] ? find_held_lock+0x36/0x1d0 [ 118.958825] ? lock_downgrade+0x7f0/0x7f0 [ 118.962964] ? __fget+0x1ca/0x2f0 [ 118.966402] ? __fget_light+0x166/0x200 [ 118.970370] ? __fdget+0xe/0x10 [ 118.973649] ? sockfd_lookup_light+0x1c/0x150 [ 118.978120] __sys_sendmsg+0xc1/0x140 [ 118.981903] ? SyS_shutdown+0x180/0x180 [ 118.985859] ? __sb_end_write+0xa4/0xd0 [ 118.989817] ? mutex_unlock+0xd/0x10 [ 118.993507] ? do_syscall_64+0x4c/0x5b0 [ 118.997472] ? __sys_sendmsg+0x140/0x140 [ 119.001511] SyS_sendmsg+0xd/0x20 [ 119.005055] do_syscall_64+0x1c7/0x5b0 [ 119.008935] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.013761] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 119.018931] RIP: 0033:0x45b399 [ 119.022113] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 119.029794] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 119.037212] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 119.044462] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 119.051713] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 119.058979] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 119.068131] batman_adv: batadv0: Adding interface: hsr0 [ 119.073508] batman_adv: batadv0: The MTU of interface hsr0 is too small (1494) 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. [ 119.098041] batman_adv: batadv0: Interface activated: hsr0 [ 119.104433] FAULT_INJECTION: forcing a failure. [ 119.104433] name failslab, interval 1, probability 0, space 0, times 0 [ 119.117134] CPU: 0 PID: 8317 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 119.125018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.134370] Call Trace: [ 119.136953] dump_stack+0xf7/0x13b [ 119.140491] should_fail.cold.3+0x105/0x14b [ 119.144810] should_failslab+0xba/0xf0 [ 119.148691] kmem_cache_alloc_node+0x287/0x790 [ 119.153271] __alloc_skb+0x92/0x500 [ 119.156890] ? skb_trim+0x160/0x160 [ 119.160510] ? if_nlmsg_size+0x2d9/0x6f0 [ 119.164567] rtmsg_ifinfo_build_skb+0x68/0x120 [ 119.169156] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 119.173979] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 119.178901] rtnetlink_event+0xc2/0x110 [ 119.182969] notifier_call_chain+0xd6/0x150 [ 119.187326] raw_notifier_call_chain+0x11/0x20 [ 119.191889] call_netdevice_notifiers_info+0x4b/0x60 [ 119.196975] __netdev_upper_dev_link+0x18e/0x1f0 [ 119.201714] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 119.206449] netdev_master_upper_dev_link+0x14/0x20 [ 119.211442] batadv_hardif_enable_interface+0x1f4/0xa10 [ 119.216798] batadv_softif_slave_add+0x7f/0xd0 [ 119.221497] do_set_master+0x163/0x1f0 [ 119.225361] do_setlink+0x9dd/0x2c50 [ 119.229049] ? find_held_lock+0x36/0x1d0 [ 119.233172] ? rtnl_register+0x20/0x20 [ 119.237040] ? load_balance+0xb38/0x2190 [ 119.241086] ? lock_downgrade+0x7f0/0x7f0 [ 119.245215] ? lock_pin_lock+0x340/0x340 [ 119.249254] ? __lock_acquire+0x6a4/0x4500 [ 119.253465] ? trace_hardirqs_off+0x10/0x10 [ 119.257769] ? __lock_is_held+0xb5/0x140 [ 119.261826] ? trace_hardirqs_off+0x10/0x10 [ 119.266131] rtnl_newlink+0xe0c/0x1390 [ 119.270004] ? rtnl_link_unregister+0x270/0x270 [ 119.274659] ? finish_task_switch+0x178/0x650 [ 119.279137] ? finish_task_switch+0x14d/0x650 [ 119.283615] ? find_held_lock+0x36/0x1d0 [ 119.287664] ? __mutex_lock+0x8b7/0x14c0 [ 119.291706] ? lock_downgrade+0x7f0/0x7f0 [ 119.295838] ? do_raw_spin_unlock+0x16a/0x250 [ 119.300355] rtnetlink_rcv_msg+0x34c/0x9e0 [ 119.304565] ? rtnl_bridge_getlink+0x760/0x760 [ 119.309136] ? find_held_lock+0x36/0x1d0 [ 119.313181] netlink_rcv_skb+0x133/0x370 [ 119.317226] ? rtnl_bridge_getlink+0x760/0x760 [ 119.321782] ? netlink_ack+0xa00/0xa00 [ 119.325651] ? netlink_deliver_tap+0x8e/0x920 [ 119.330135] rtnetlink_rcv+0x10/0x20 [ 119.333827] netlink_unicast+0x40b/0x600 [ 119.337877] ? netlink_attachskb+0x6d0/0x6d0 [ 119.342286] netlink_sendmsg+0x730/0xbd0 [ 119.346328] ? netlink_unicast+0x600/0x600 [ 119.350545] ? selinux_socket_sendmsg+0x31/0x40 [ 119.355206] ? security_socket_sendmsg+0x6a/0xa0 [ 119.359949] ? netlink_unicast+0x600/0x600 [ 119.364180] sock_sendmsg+0xb5/0xf0 [ 119.367899] ___sys_sendmsg+0x625/0x920 [ 119.371855] ? trace_hardirqs_off+0x10/0x10 [ 119.376169] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 119.380912] ? find_held_lock+0x36/0x1d0 [ 119.384961] ? lock_downgrade+0x7f0/0x7f0 [ 119.389096] ? __fget+0x1ca/0x2f0 [ 119.392541] ? __fget_light+0x166/0x200 [ 119.396499] ? __fdget+0xe/0x10 [ 119.399761] ? sockfd_lookup_light+0x1c/0x150 [ 119.404235] __sys_sendmsg+0xc1/0x140 [ 119.408123] ? SyS_shutdown+0x180/0x180 [ 119.412085] ? __sb_end_write+0xa4/0xd0 [ 119.416048] ? mutex_unlock+0xd/0x10 [ 119.419749] ? do_syscall_64+0x4c/0x5b0 [ 119.423731] ? __sys_sendmsg+0x140/0x140 [ 119.427787] SyS_sendmsg+0xd/0x20 [ 119.431215] do_syscall_64+0x1c7/0x5b0 [ 119.435085] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.439917] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 119.445086] RIP: 0033:0x45b399 [ 119.448260] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 119.455954] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 119.463203] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 119.470456] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 119.477711] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 119.485113] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 119.494055] batman_adv: batadv0: Adding interface: veth1_vlan 2020/06/04 21:06:38 executed programs: 140 [ 119.500060] batman_adv: batadv0: The MTU of interface veth1_vlan 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. [ 119.525581] batman_adv: batadv0: Interface activated: veth1_vlan [ 119.532414] FAULT_INJECTION: forcing a failure. [ 119.532414] name failslab, interval 1, probability 0, space 0, times 0 [ 119.549454] CPU: 1 PID: 8321 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 119.557269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.566637] Call Trace: [ 119.569218] dump_stack+0xf7/0x13b [ 119.572765] should_fail.cold.3+0x105/0x14b [ 119.577082] should_failslab+0xba/0xf0 [ 119.580957] kmem_cache_alloc_node_trace+0x279/0x780 [ 119.586037] __kmalloc_node_track_caller+0x3c/0x70 [ 119.590941] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 119.595670] __alloc_skb+0xc1/0x500 [ 119.599270] ? skb_trim+0x160/0x160 [ 119.602870] ? if_nlmsg_size+0x2d9/0x6f0 [ 119.606918] rtmsg_ifinfo_build_skb+0x68/0x120 [ 119.611485] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 119.616311] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 119.621213] rtnetlink_event+0xc2/0x110 [ 119.625165] notifier_call_chain+0xd6/0x150 [ 119.629479] raw_notifier_call_chain+0x11/0x20 [ 119.634033] call_netdevice_notifiers_info+0x4b/0x60 [ 119.639108] __netdev_upper_dev_link+0x18e/0x1f0 [ 119.643838] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 119.648581] netdev_master_upper_dev_link+0x14/0x20 [ 119.653572] batadv_hardif_enable_interface+0x1f4/0xa10 [ 119.658910] batadv_softif_slave_add+0x7f/0xd0 [ 119.663466] do_set_master+0x163/0x1f0 [ 119.667339] do_setlink+0x9dd/0x2c50 [ 119.671027] ? rtnl_register+0x20/0x20 [ 119.674901] ? __lock_acquire+0x6a4/0x4500 [ 119.679115] ? trace_hardirqs_off+0x10/0x10 [ 119.683414] rtnl_newlink+0xe0c/0x1390 [ 119.687296] ? rtnl_link_unregister+0x270/0x270 [ 119.691943] ? finish_task_switch+0x178/0x650 [ 119.696425] ? finish_task_switch+0x14d/0x650 [ 119.700897] ? find_held_lock+0x36/0x1d0 [ 119.704940] ? __mutex_lock+0x8b7/0x14c0 [ 119.708976] ? lock_downgrade+0x7f0/0x7f0 [ 119.713096] ? do_raw_spin_unlock+0x16a/0x250 [ 119.717578] rtnetlink_rcv_msg+0x34c/0x9e0 [ 119.721785] ? rtnl_bridge_getlink+0x760/0x760 [ 119.726339] ? find_held_lock+0x36/0x1d0 [ 119.730375] netlink_rcv_skb+0x133/0x370 [ 119.734410] ? rtnl_bridge_getlink+0x760/0x760 [ 119.738964] ? netlink_ack+0xa00/0xa00 [ 119.742839] ? netlink_deliver_tap+0x8e/0x920 [ 119.747309] rtnetlink_rcv+0x10/0x20 [ 119.750996] netlink_unicast+0x40b/0x600 [ 119.755055] ? netlink_attachskb+0x6d0/0x6d0 [ 119.759448] netlink_sendmsg+0x730/0xbd0 [ 119.763485] ? netlink_unicast+0x600/0x600 [ 119.767710] ? selinux_socket_sendmsg+0x31/0x40 [ 119.772372] ? security_socket_sendmsg+0x6a/0xa0 [ 119.777101] ? netlink_unicast+0x600/0x600 [ 119.781322] sock_sendmsg+0xb5/0xf0 [ 119.784921] ___sys_sendmsg+0x625/0x920 [ 119.788889] ? trace_hardirqs_off+0x10/0x10 [ 119.793194] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 119.797934] ? find_held_lock+0x36/0x1d0 [ 119.801975] ? lock_downgrade+0x7f0/0x7f0 [ 119.806125] ? __fget+0x1ca/0x2f0 [ 119.809608] ? __fget_light+0x166/0x200 [ 119.813559] ? __fdget+0xe/0x10 [ 119.816815] ? sockfd_lookup_light+0x1c/0x150 [ 119.821285] __sys_sendmsg+0xc1/0x140 [ 119.825065] ? SyS_shutdown+0x180/0x180 [ 119.829024] ? __sb_end_write+0xa4/0xd0 [ 119.832973] ? mutex_unlock+0xd/0x10 [ 119.836663] ? do_syscall_64+0x4c/0x5b0 [ 119.840634] ? __sys_sendmsg+0x140/0x140 [ 119.844670] SyS_sendmsg+0xd/0x20 [ 119.848107] do_syscall_64+0x1c7/0x5b0 [ 119.852039] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.856866] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 119.862039] RIP: 0033:0x45b399 [ 119.865204] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 119.872939] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 119.880359] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 119.887601] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 119.894844] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 119.902176] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 119.911985] batman_adv: batadv0: Adding interface: macvlan1 [ 119.918551] batman_adv: batadv0: The MTU of interface macvlan1 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. [ 119.943536] batman_adv: batadv0: Interface activated: macvlan1 [ 119.950449] FAULT_INJECTION: forcing a failure. [ 119.950449] name failslab, interval 1, probability 0, space 0, times 0 [ 119.963518] CPU: 1 PID: 8324 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 119.971342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.980695] Call Trace: [ 119.983284] dump_stack+0xf7/0x13b [ 119.986802] should_fail.cold.3+0x105/0x14b [ 119.991102] should_failslab+0xba/0xf0 [ 119.994965] kmem_cache_alloc_node_trace+0x279/0x780 [ 120.000044] __kmalloc_node_track_caller+0x3c/0x70 [ 120.004957] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 120.009688] __alloc_skb+0xc1/0x500 [ 120.013300] ? skb_trim+0x160/0x160 [ 120.016901] ? if_nlmsg_size+0x2d9/0x6f0 [ 120.020935] rtmsg_ifinfo_build_skb+0x68/0x120 [ 120.025503] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 120.030323] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 120.035229] rtnetlink_event+0xc2/0x110 [ 120.039178] notifier_call_chain+0xd6/0x150 [ 120.043515] raw_notifier_call_chain+0x11/0x20 [ 120.048070] call_netdevice_notifiers_info+0x4b/0x60 [ 120.053151] __netdev_upper_dev_link+0x18e/0x1f0 [ 120.057887] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 120.062617] netdev_master_upper_dev_link+0x14/0x20 [ 120.067610] batadv_hardif_enable_interface+0x1f4/0xa10 [ 120.072963] batadv_softif_slave_add+0x7f/0xd0 [ 120.077694] do_set_master+0x163/0x1f0 [ 120.081553] do_setlink+0x9dd/0x2c50 [ 120.085251] ? __lock_acquire+0x6a4/0x4500 [ 120.089461] ? rtnl_register+0x20/0x20 [ 120.093324] ? trace_hardirqs_on+0x10/0x10 [ 120.097545] ? trace_hardirqs_off+0x10/0x10 [ 120.101861] ? __lock_acquire+0x6a4/0x4500 [ 120.106081] ? trace_hardirqs_off+0x10/0x10 [ 120.110392] ? __lock_is_held+0xb5/0x140 [ 120.114441] ? trace_hardirqs_off+0x10/0x10 [ 120.118758] rtnl_newlink+0xe0c/0x1390 [ 120.122624] ? rtnl_link_unregister+0x270/0x270 [ 120.127289] ? finish_task_switch+0x178/0x650 [ 120.131756] ? finish_task_switch+0x14d/0x650 [ 120.136576] ? find_held_lock+0x36/0x1d0 [ 120.140613] ? __mutex_lock+0x8b7/0x14c0 [ 120.144650] ? lock_downgrade+0x7f0/0x7f0 [ 120.148786] ? do_raw_spin_unlock+0x16a/0x250 [ 120.153270] rtnetlink_rcv_msg+0x34c/0x9e0 [ 120.157478] ? rtnl_bridge_getlink+0x760/0x760 [ 120.162050] ? find_held_lock+0x36/0x1d0 [ 120.166088] netlink_rcv_skb+0x133/0x370 [ 120.170121] ? rtnl_bridge_getlink+0x760/0x760 [ 120.174692] ? netlink_ack+0xa00/0xa00 [ 120.178571] ? netlink_deliver_tap+0x8e/0x920 [ 120.183133] rtnetlink_rcv+0x10/0x20 [ 120.186876] netlink_unicast+0x40b/0x600 [ 120.191002] ? netlink_attachskb+0x6d0/0x6d0 [ 120.195397] netlink_sendmsg+0x730/0xbd0 [ 120.199432] ? netlink_unicast+0x600/0x600 [ 120.203643] ? selinux_socket_sendmsg+0x31/0x40 [ 120.208293] ? security_socket_sendmsg+0x6a/0xa0 [ 120.213028] ? netlink_unicast+0x600/0x600 [ 120.217237] sock_sendmsg+0xb5/0xf0 [ 120.220839] ___sys_sendmsg+0x625/0x920 [ 120.224787] ? trace_hardirqs_off+0x10/0x10 [ 120.229084] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 120.233813] ? find_held_lock+0x36/0x1d0 [ 120.237859] ? lock_downgrade+0x7f0/0x7f0 [ 120.241991] ? __fget+0x1ca/0x2f0 [ 120.245419] ? __fget_light+0x166/0x200 [ 120.249387] ? __fdget+0xe/0x10 [ 120.252641] ? sockfd_lookup_light+0x1c/0x150 [ 120.257106] __sys_sendmsg+0xc1/0x140 [ 120.260879] ? SyS_shutdown+0x180/0x180 [ 120.264827] ? __sb_end_write+0xa4/0xd0 [ 120.268794] ? mutex_unlock+0xd/0x10 [ 120.272490] ? do_syscall_64+0x4c/0x5b0 [ 120.276438] ? __sys_sendmsg+0x140/0x140 [ 120.280470] SyS_sendmsg+0xd/0x20 [ 120.283984] do_syscall_64+0x1c7/0x5b0 [ 120.287843] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 120.292677] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 120.298207] RIP: 0033:0x45b399 [ 120.301384] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 120.309078] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 120.316325] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 120.323576] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 120.330870] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 120.338161] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 120.351670] batman_adv: batadv0: Adding interface: hsr0 [ 120.357851] batman_adv: batadv0: The MTU of interface hsr0 is too small (1494) 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. [ 120.384123] batman_adv: batadv0: Interface activated: hsr0 [ 120.390625] FAULT_INJECTION: forcing a failure. [ 120.390625] name failslab, interval 1, probability 0, space 0, times 0 [ 120.415320] CPU: 1 PID: 8329 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 120.423138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.432661] Call Trace: [ 120.435244] dump_stack+0xf7/0x13b [ 120.438865] should_fail.cold.3+0x105/0x14b [ 120.443181] should_failslab+0xba/0xf0 [ 120.447061] kmem_cache_alloc_node_trace+0x279/0x780 [ 120.452159] __kmalloc_node_track_caller+0x3c/0x70 [ 120.457080] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 120.461830] __alloc_skb+0xc1/0x500 [ 120.465431] ? skb_trim+0x160/0x160 [ 120.469121] ? if_nlmsg_size+0x2d9/0x6f0 [ 120.473180] rtmsg_ifinfo_build_skb+0x68/0x120 [ 120.477737] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 120.482559] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 120.487478] rtnetlink_event+0xc2/0x110 [ 120.491428] notifier_call_chain+0xd6/0x150 [ 120.495747] raw_notifier_call_chain+0x11/0x20 [ 120.500314] call_netdevice_notifiers_info+0x4b/0x60 [ 120.505489] __netdev_upper_dev_link+0x18e/0x1f0 [ 120.510224] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 120.514968] netdev_master_upper_dev_link+0x14/0x20 [ 120.519963] batadv_hardif_enable_interface+0x1f4/0xa10 [ 120.525314] batadv_softif_slave_add+0x7f/0xd0 [ 120.529875] do_set_master+0x163/0x1f0 [ 120.533794] do_setlink+0x9dd/0x2c50 [ 120.537487] ? rtnl_register+0x20/0x20 [ 120.541357] ? __lock_acquire+0x6a4/0x4500 [ 120.545571] ? trace_hardirqs_off+0x10/0x10 [ 120.549871] rtnl_newlink+0xe0c/0x1390 [ 120.553738] ? rtnl_link_unregister+0x270/0x270 [ 120.558388] ? finish_task_switch+0x178/0x650 [ 120.562857] ? finish_task_switch+0x14d/0x650 [ 120.567395] ? find_held_lock+0x36/0x1d0 [ 120.571434] ? __mutex_lock+0x8b7/0x14c0 [ 120.575524] ? lock_downgrade+0x7f0/0x7f0 [ 120.579652] ? do_raw_spin_unlock+0x16a/0x250 [ 120.584136] rtnetlink_rcv_msg+0x34c/0x9e0 [ 120.588347] ? rtnl_bridge_getlink+0x760/0x760 [ 120.592903] ? find_held_lock+0x36/0x1d0 [ 120.597043] netlink_rcv_skb+0x133/0x370 [ 120.601094] ? rtnl_bridge_getlink+0x760/0x760 [ 120.605660] ? netlink_ack+0xa00/0xa00 [ 120.609533] ? netlink_deliver_tap+0x8e/0x920 [ 120.614020] rtnetlink_rcv+0x10/0x20 [ 120.617716] netlink_unicast+0x40b/0x600 [ 120.621762] ? netlink_attachskb+0x6d0/0x6d0 [ 120.626231] netlink_sendmsg+0x730/0xbd0 [ 120.630332] ? netlink_unicast+0x600/0x600 [ 120.634559] ? selinux_socket_sendmsg+0x31/0x40 [ 120.641563] ? security_socket_sendmsg+0x6a/0xa0 [ 120.646310] ? netlink_unicast+0x600/0x600 [ 120.650557] sock_sendmsg+0xb5/0xf0 [ 120.654177] ___sys_sendmsg+0x625/0x920 [ 120.658139] ? trace_hardirqs_off+0x10/0x10 [ 120.662447] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 120.667188] ? find_held_lock+0x36/0x1d0 [ 120.671253] ? lock_downgrade+0x7f0/0x7f0 [ 120.675390] ? __fget+0x1ca/0x2f0 [ 120.678817] ? __fget_light+0x166/0x200 [ 120.682938] ? __fdget+0xe/0x10 [ 120.686190] ? sockfd_lookup_light+0x1c/0x150 [ 120.690657] __sys_sendmsg+0xc1/0x140 [ 120.694441] ? SyS_shutdown+0x180/0x180 [ 120.698398] ? __sb_end_write+0xa4/0xd0 [ 120.702348] ? mutex_unlock+0xd/0x10 [ 120.706037] ? do_syscall_64+0x4c/0x5b0 [ 120.709983] ? __sys_sendmsg+0x140/0x140 [ 120.714019] SyS_sendmsg+0xd/0x20 [ 120.717446] do_syscall_64+0x1c7/0x5b0 [ 120.721319] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 120.726152] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 120.731336] RIP: 0033:0x45b399 [ 120.734504] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 120.742198] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 120.749465] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 120.756709] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 120.763964] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 120.771214] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 120.779415] batman_adv: batadv0: Adding interface: veth1_virt_wifi [ 120.785961] batman_adv: batadv0: The MTU of interface veth1_virt_wifi 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. [ 120.811368] batman_adv: batadv0: Interface activated: veth1_virt_wifi [ 120.819248] FAULT_INJECTION: forcing a failure. [ 120.819248] name failslab, interval 1, probability 0, space 0, times 0 [ 120.831405] CPU: 1 PID: 8333 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 120.839196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.848641] Call Trace: [ 120.851225] dump_stack+0xf7/0x13b [ 120.854762] should_fail.cold.3+0x105/0x14b [ 120.859089] should_failslab+0xba/0xf0 [ 120.863669] kmem_cache_alloc_node_trace+0x279/0x780 [ 120.868762] __kmalloc_node_track_caller+0x3c/0x70 [ 120.873667] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 120.878396] __alloc_skb+0xc1/0x500 [ 120.882021] ? skb_trim+0x160/0x160 [ 120.885622] ? if_nlmsg_size+0x2d9/0x6f0 [ 120.889657] rtmsg_ifinfo_build_skb+0x68/0x120 [ 120.894229] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 120.899053] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 120.904013] rtnetlink_event+0xc2/0x110 [ 120.907979] notifier_call_chain+0xd6/0x150 [ 120.912399] raw_notifier_call_chain+0x11/0x20 [ 120.916967] call_netdevice_notifiers_info+0x4b/0x60 [ 120.922048] __netdev_upper_dev_link+0x18e/0x1f0 [ 120.926786] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 120.931530] netdev_master_upper_dev_link+0x14/0x20 [ 120.936723] batadv_hardif_enable_interface+0x1f4/0xa10 [ 120.942069] batadv_softif_slave_add+0x7f/0xd0 [ 120.946625] do_set_master+0x163/0x1f0 [ 120.950485] do_setlink+0x9dd/0x2c50 [ 120.954483] ? find_held_lock+0x36/0x1d0 [ 120.958527] ? rtnl_register+0x20/0x20 [ 120.962394] ? load_balance+0xb38/0x2190 [ 120.966473] ? lock_downgrade+0x7f0/0x7f0 [ 120.970661] ? lock_pin_lock+0x340/0x340 [ 120.974701] ? __lock_acquire+0x6a4/0x4500 [ 120.978920] ? trace_hardirqs_off+0x10/0x10 [ 120.983256] ? __lock_is_held+0xb5/0x140 [ 120.987304] ? trace_hardirqs_off+0x10/0x10 [ 120.991633] rtnl_newlink+0xe0c/0x1390 [ 120.995504] ? rtnl_link_unregister+0x270/0x270 [ 121.000201] ? finish_task_switch+0x178/0x650 [ 121.004688] ? finish_task_switch+0x14d/0x650 [ 121.009160] ? find_held_lock+0x36/0x1d0 [ 121.013201] ? __mutex_lock+0x8b7/0x14c0 [ 121.017247] ? lock_downgrade+0x7f0/0x7f0 [ 121.021378] ? do_raw_spin_unlock+0x16a/0x250 [ 121.025876] rtnetlink_rcv_msg+0x34c/0x9e0 [ 121.030086] ? rtnl_bridge_getlink+0x760/0x760 [ 121.034644] ? find_held_lock+0x36/0x1d0 [ 121.038855] netlink_rcv_skb+0x133/0x370 [ 121.042895] ? rtnl_bridge_getlink+0x760/0x760 [ 121.047450] ? netlink_ack+0xa00/0xa00 [ 121.051318] ? netlink_deliver_tap+0x8e/0x920 [ 121.055809] rtnetlink_rcv+0x10/0x20 [ 121.059511] netlink_unicast+0x40b/0x600 [ 121.063619] ? netlink_attachskb+0x6d0/0x6d0 [ 121.068020] netlink_sendmsg+0x730/0xbd0 [ 121.072058] ? netlink_unicast+0x600/0x600 [ 121.076323] ? selinux_socket_sendmsg+0x31/0x40 [ 121.080971] ? security_socket_sendmsg+0x6a/0xa0 [ 121.085745] ? netlink_unicast+0x600/0x600 [ 121.089956] sock_sendmsg+0xb5/0xf0 [ 121.093682] ___sys_sendmsg+0x625/0x920 [ 121.097686] ? trace_hardirqs_off+0x10/0x10 [ 121.101985] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 121.106750] ? find_held_lock+0x36/0x1d0 [ 121.110798] ? lock_downgrade+0x7f0/0x7f0 [ 121.114926] ? __fget+0x1ca/0x2f0 [ 121.118467] ? __fget_light+0x166/0x200 [ 121.122426] ? __fdget+0xe/0x10 [ 121.125715] ? sockfd_lookup_light+0x1c/0x150 [ 121.130227] __sys_sendmsg+0xc1/0x140 [ 121.134061] ? SyS_shutdown+0x180/0x180 [ 121.138024] ? __sb_end_write+0xa4/0xd0 [ 121.142039] ? mutex_unlock+0xd/0x10 [ 121.145749] ? do_syscall_64+0x4c/0x5b0 [ 121.149708] ? __sys_sendmsg+0x140/0x140 [ 121.153763] SyS_sendmsg+0xd/0x20 [ 121.157192] do_syscall_64+0x1c7/0x5b0 [ 121.161062] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 121.165893] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 121.171064] RIP: 0033:0x45b399 [ 121.174247] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 121.181947] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 121.189203] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 121.196450] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 121.203698] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 121.210946] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 121.219629] batman_adv: batadv0: Adding interface: veth0_virt_wifi [ 121.226009] batman_adv: batadv0: The MTU of interface veth0_virt_wifi 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. [ 121.251329] batman_adv: batadv0: Interface activated: veth0_virt_wifi [ 121.258779] FAULT_INJECTION: forcing a failure. [ 121.258779] name failslab, interval 1, probability 0, space 0, times 0 [ 121.271282] CPU: 1 PID: 8337 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 121.279088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.288521] Call Trace: [ 121.291103] dump_stack+0xf7/0x13b [ 121.294639] should_fail.cold.3+0x105/0x14b [ 121.298959] should_failslab+0xba/0xf0 [ 121.302839] kmem_cache_alloc_node_trace+0x279/0x780 [ 121.307943] __kmalloc_node_track_caller+0x3c/0x70 [ 121.312878] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 121.317629] __alloc_skb+0xc1/0x500 [ 121.321275] ? skb_trim+0x160/0x160 [ 121.324893] ? if_nlmsg_size+0x2d9/0x6f0 [ 121.328941] rtmsg_ifinfo_build_skb+0x68/0x120 [ 121.333514] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 121.338345] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 121.343258] rtnetlink_event+0xc2/0x110 [ 121.347214] notifier_call_chain+0xd6/0x150 [ 121.351519] raw_notifier_call_chain+0x11/0x20 [ 121.356079] call_netdevice_notifiers_info+0x4b/0x60 [ 121.361185] __netdev_upper_dev_link+0x18e/0x1f0 [ 121.366032] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 121.370858] netdev_master_upper_dev_link+0x14/0x20 [ 121.375868] batadv_hardif_enable_interface+0x1f4/0xa10 [ 121.381210] batadv_softif_slave_add+0x7f/0xd0 [ 121.385768] do_set_master+0x163/0x1f0 [ 121.389652] do_setlink+0x9dd/0x2c50 [ 121.393361] ? find_held_lock+0x36/0x1d0 [ 121.397414] ? rtnl_register+0x20/0x20 [ 121.401284] ? load_balance+0xb38/0x2190 [ 121.405322] ? lock_downgrade+0x7f0/0x7f0 [ 121.409537] ? lock_pin_lock+0x340/0x340 [ 121.413585] ? __lock_acquire+0x6a4/0x4500 [ 121.418328] ? trace_hardirqs_off+0x10/0x10 [ 121.422687] ? __lock_is_held+0xb5/0x140 [ 121.426727] ? trace_hardirqs_off+0x10/0x10 [ 121.431192] rtnl_newlink+0xe0c/0x1390 [ 121.435068] ? rtnl_link_unregister+0x270/0x270 [ 121.439717] ? finish_task_switch+0x178/0x650 [ 121.444197] ? finish_task_switch+0x14d/0x650 [ 121.448676] ? find_held_lock+0x36/0x1d0 [ 121.452719] ? __mutex_lock+0x8b7/0x14c0 [ 121.456756] ? lock_downgrade+0x7f0/0x7f0 [ 121.460895] ? do_raw_spin_unlock+0x16a/0x250 [ 121.465380] rtnetlink_rcv_msg+0x34c/0x9e0 [ 121.469687] ? rtnl_bridge_getlink+0x760/0x760 [ 121.474244] ? find_held_lock+0x36/0x1d0 [ 121.478293] netlink_rcv_skb+0x133/0x370 [ 121.482332] ? rtnl_bridge_getlink+0x760/0x760 [ 121.486898] ? netlink_ack+0xa00/0xa00 [ 121.490765] ? netlink_deliver_tap+0x8e/0x920 [ 121.495285] rtnetlink_rcv+0x10/0x20 [ 121.499046] netlink_unicast+0x40b/0x600 [ 121.503086] ? netlink_attachskb+0x6d0/0x6d0 [ 121.507472] netlink_sendmsg+0x730/0xbd0 [ 121.511631] ? netlink_unicast+0x600/0x600 [ 121.515851] ? selinux_socket_sendmsg+0x31/0x40 [ 121.520504] ? security_socket_sendmsg+0x6a/0xa0 [ 121.525284] ? netlink_unicast+0x600/0x600 [ 121.529498] sock_sendmsg+0xb5/0xf0 [ 121.533102] ___sys_sendmsg+0x625/0x920 [ 121.537061] ? trace_hardirqs_off+0x10/0x10 [ 121.541367] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 121.546240] ? find_held_lock+0x36/0x1d0 [ 121.550291] ? lock_downgrade+0x7f0/0x7f0 [ 121.554425] ? __fget+0x1ca/0x2f0 [ 121.557866] ? __fget_light+0x166/0x200 [ 121.561828] ? __fdget+0xe/0x10 [ 121.565133] ? sockfd_lookup_light+0x1c/0x150 [ 121.569604] __sys_sendmsg+0xc1/0x140 [ 121.573377] ? SyS_shutdown+0x180/0x180 [ 121.577378] ? __sb_end_write+0xa4/0xd0 [ 121.581382] ? mutex_unlock+0xd/0x10 [ 121.585074] ? do_syscall_64+0x4c/0x5b0 [ 121.589077] ? __sys_sendmsg+0x140/0x140 [ 121.593110] SyS_sendmsg+0xd/0x20 [ 121.596565] do_syscall_64+0x1c7/0x5b0 [ 121.600442] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 121.605320] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 121.610528] RIP: 0033:0x45b399 [ 121.613693] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 121.621897] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 121.629231] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 121.636511] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 121.643772] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 121.651021] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 121.659499] batman_adv: batadv0: Adding interface: veth0_virt_wifi [ 121.665886] batman_adv: batadv0: The MTU of interface veth0_virt_wifi 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. [ 121.691197] batman_adv: batadv0: Interface activated: veth0_virt_wifi [ 121.698605] FAULT_INJECTION: forcing a failure. [ 121.698605] name failslab, interval 1, probability 0, space 0, times 0 [ 121.728505] CPU: 0 PID: 8340 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 121.736322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 121.745672] Call Trace: [ 121.748257] dump_stack+0xf7/0x13b [ 121.751868] should_fail.cold.3+0x105/0x14b [ 121.756178] should_failslab+0xba/0xf0 [ 121.760060] kmem_cache_alloc_node_trace+0x279/0x780 [ 121.766539] __kmalloc_node_track_caller+0x3c/0x70 [ 121.771460] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 121.776203] __alloc_skb+0xc1/0x500 [ 121.779815] ? skb_trim+0x160/0x160 [ 121.783424] ? if_nlmsg_size+0x2d9/0x6f0 [ 121.787459] rtmsg_ifinfo_build_skb+0x68/0x120 [ 121.792023] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 121.796869] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 121.801789] rtnetlink_event+0xc2/0x110 [ 121.805739] notifier_call_chain+0xd6/0x150 [ 121.810036] raw_notifier_call_chain+0x11/0x20 [ 121.814599] call_netdevice_notifiers_info+0x4b/0x60 [ 121.819683] __netdev_upper_dev_link+0x18e/0x1f0 [ 121.824768] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 121.829681] netdev_master_upper_dev_link+0x14/0x20 [ 121.834688] batadv_hardif_enable_interface+0x1f4/0xa10 [ 121.840034] batadv_softif_slave_add+0x7f/0xd0 [ 121.844595] do_set_master+0x163/0x1f0 [ 121.848481] do_setlink+0x9dd/0x2c50 [ 121.852172] ? find_held_lock+0x36/0x1d0 [ 121.856218] ? rtnl_register+0x20/0x20 [ 121.860099] ? load_balance+0xb38/0x2190 [ 121.864144] ? lock_downgrade+0x7f0/0x7f0 [ 121.868278] ? lock_pin_lock+0x340/0x340 [ 121.872319] ? __lock_acquire+0x6a4/0x4500 [ 121.876533] ? trace_hardirqs_off+0x10/0x10 [ 121.880944] ? __lock_is_held+0xb5/0x140 [ 121.884998] ? trace_hardirqs_off+0x10/0x10 [ 121.889292] ? trace_hardirqs_off+0x10/0x10 [ 121.893606] rtnl_newlink+0xe0c/0x1390 [ 121.897490] ? rtnl_link_unregister+0x270/0x270 [ 121.902145] ? finish_task_switch+0x178/0x650 [ 121.906645] ? finish_task_switch+0x14d/0x650 [ 121.911146] ? find_held_lock+0x36/0x1d0 [ 121.915194] ? __mutex_lock+0x8b7/0x14c0 [ 121.919945] ? lock_downgrade+0x7f0/0x7f0 [ 121.924070] ? do_raw_spin_unlock+0x16a/0x250 [ 121.928562] rtnetlink_rcv_msg+0x34c/0x9e0 [ 121.932779] ? rtnl_bridge_getlink+0x760/0x760 [ 121.937340] ? find_held_lock+0x36/0x1d0 [ 121.941391] netlink_rcv_skb+0x133/0x370 [ 121.945426] ? rtnl_bridge_getlink+0x760/0x760 [ 121.949982] ? netlink_ack+0xa00/0xa00 [ 121.953945] ? netlink_deliver_tap+0x8e/0x920 [ 121.958419] rtnetlink_rcv+0x10/0x20 [ 121.962107] netlink_unicast+0x40b/0x600 [ 121.966148] ? netlink_attachskb+0x6d0/0x6d0 [ 121.970531] netlink_sendmsg+0x730/0xbd0 [ 121.974575] ? netlink_unicast+0x600/0x600 [ 121.978806] ? selinux_socket_sendmsg+0x31/0x40 [ 121.983449] ? security_socket_sendmsg+0x6a/0xa0 [ 121.988179] ? netlink_unicast+0x600/0x600 [ 121.992405] sock_sendmsg+0xb5/0xf0 [ 121.996016] ___sys_sendmsg+0x625/0x920 [ 121.999973] ? trace_hardirqs_off+0x10/0x10 [ 122.004277] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 122.009017] ? find_held_lock+0x36/0x1d0 [ 122.013067] ? lock_downgrade+0x7f0/0x7f0 [ 122.017211] ? __fget+0x1ca/0x2f0 [ 122.020647] ? __fget_light+0x166/0x200 [ 122.024596] ? __fdget+0xe/0x10 [ 122.027863] ? sockfd_lookup_light+0x1c/0x150 [ 122.032331] __sys_sendmsg+0xc1/0x140 [ 122.036112] ? SyS_shutdown+0x180/0x180 [ 122.040158] ? __sb_end_write+0xa4/0xd0 [ 122.044109] ? mutex_unlock+0xd/0x10 [ 122.047801] ? do_syscall_64+0x4c/0x5b0 [ 122.051747] ? __sys_sendmsg+0x140/0x140 [ 122.055784] SyS_sendmsg+0xd/0x20 [ 122.059218] do_syscall_64+0x1c7/0x5b0 [ 122.063090] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 122.067921] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 122.073142] RIP: 0033:0x45b399 [ 122.076313] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 122.084011] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 122.091346] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 122.098606] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 122.105851] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 122.113097] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 122.122289] batman_adv: batadv0: Adding interface: vlan0 [ 122.127958] batman_adv: batadv0: The MTU of interface vlan0 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. [ 122.152447] batman_adv: batadv0: Interface activated: vlan0 [ 122.159076] FAULT_INJECTION: forcing a failure. [ 122.159076] name failslab, interval 1, probability 0, space 0, times 0 [ 122.172180] CPU: 0 PID: 8344 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 122.179979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.189409] Call Trace: [ 122.191991] dump_stack+0xf7/0x13b [ 122.195536] should_fail.cold.3+0x105/0x14b [ 122.199876] should_failslab+0xba/0xf0 [ 122.203741] kmem_cache_alloc_node+0x287/0x790 [ 122.208298] __alloc_skb+0x92/0x500 [ 122.211907] ? skb_trim+0x160/0x160 [ 122.215522] rtmsg_fib+0x19d/0x460 [ 122.219044] fib_table_insert+0x7ab/0x16a0 [ 122.223264] ? trace_hardirqs_on+0x10/0x10 [ 122.227476] ? fib_triestat_seq_show+0xd80/0xd80 [ 122.232209] fib_magic.isra.19+0x317/0x4b0 [ 122.236419] ? fib_magic.isra.19+0x317/0x4b0 [ 122.240804] ? nl_fib_input+0xbb0/0xbb0 [ 122.244766] fib_add_ifaddr+0x2a5/0x410 [ 122.248720] fib_netdev_event+0x192/0x300 [ 122.252855] notifier_call_chain+0xd6/0x150 [ 122.257174] raw_notifier_call_chain+0x11/0x20 [ 122.261728] call_netdevice_notifiers_info+0x4b/0x60 [ 122.266805] __dev_notify_flags+0xca/0x210 [ 122.271008] ? dev_change_name+0x8f0/0x8f0 [ 122.275228] ? dev_set_allmulti+0x10/0x10 [ 122.279571] ? __lock_acquire+0x6a4/0x4500 [ 122.283795] ? trace_hardirqs_on+0x10/0x10 [ 122.288013] dev_change_flags+0xe6/0x150 [ 122.292121] do_setlink+0x96f/0x2c50 [ 122.295820] ? __lock_acquire+0x6a4/0x4500 [ 122.300039] ? rtnl_register+0x20/0x20 [ 122.303902] ? trace_hardirqs_on+0x10/0x10 [ 122.308150] ? trace_hardirqs_off+0x10/0x10 [ 122.312445] ? __lock_acquire+0x6a4/0x4500 [ 122.316658] ? trace_hardirqs_off+0x10/0x10 [ 122.320961] ? __lock_is_held+0xb5/0x140 [ 122.325015] ? trace_hardirqs_off+0x10/0x10 [ 122.329329] rtnl_newlink+0xe0c/0x1390 [ 122.333396] ? rtnl_link_unregister+0x270/0x270 [ 122.338042] ? finish_task_switch+0x178/0x650 [ 122.342510] ? finish_task_switch+0x14d/0x650 [ 122.346983] ? find_held_lock+0x36/0x1d0 [ 122.351079] ? __mutex_lock+0x8b7/0x14c0 [ 122.355118] ? lock_downgrade+0x7f0/0x7f0 [ 122.359249] ? do_raw_spin_unlock+0x16a/0x250 [ 122.363784] rtnetlink_rcv_msg+0x34c/0x9e0 [ 122.368053] ? rtnl_bridge_getlink+0x760/0x760 [ 122.372611] ? find_held_lock+0x36/0x1d0 [ 122.376676] netlink_rcv_skb+0x133/0x370 [ 122.380722] ? rtnl_bridge_getlink+0x760/0x760 [ 122.385278] ? netlink_ack+0xa00/0xa00 [ 122.389189] ? netlink_deliver_tap+0x8e/0x920 [ 122.393660] rtnetlink_rcv+0x10/0x20 [ 122.397421] netlink_unicast+0x40b/0x600 [ 122.401511] ? netlink_attachskb+0x6d0/0x6d0 [ 122.405987] netlink_sendmsg+0x730/0xbd0 [ 122.410094] ? netlink_unicast+0x600/0x600 [ 122.414394] ? selinux_socket_sendmsg+0x31/0x40 [ 122.419048] ? security_socket_sendmsg+0x6a/0xa0 [ 122.423785] ? netlink_unicast+0x600/0x600 [ 122.428004] sock_sendmsg+0xb5/0xf0 [ 122.431615] ___sys_sendmsg+0x625/0x920 [ 122.435568] ? trace_hardirqs_off+0x10/0x10 [ 122.439879] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 122.444614] ? find_held_lock+0x36/0x1d0 [ 122.448667] ? lock_downgrade+0x7f0/0x7f0 [ 122.452788] ? __fget+0x1ca/0x2f0 [ 122.456224] ? __fget_light+0x166/0x200 [ 122.460178] ? __fdget+0xe/0x10 [ 122.463428] ? sockfd_lookup_light+0x1c/0x150 [ 122.467895] __sys_sendmsg+0xc1/0x140 [ 122.471665] ? SyS_shutdown+0x180/0x180 [ 122.475620] ? __sb_end_write+0xa4/0xd0 [ 122.479577] ? mutex_unlock+0xd/0x10 [ 122.483342] ? do_syscall_64+0x4c/0x5b0 [ 122.487289] ? __sys_sendmsg+0x140/0x140 [ 122.491330] SyS_sendmsg+0xd/0x20 [ 122.494761] do_syscall_64+0x1c7/0x5b0 [ 122.498629] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 122.505616] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 122.510775] RIP: 0033:0x45b399 [ 122.513936] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 122.521712] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 122.528967] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 122.536223] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 122.543474] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 122.550727] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 122.562232] batman_adv: batadv0: Adding interface: ipvlan1 [ 122.568077] batman_adv: batadv0: The MTU of interface ipvlan1 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. [ 122.593014] batman_adv: batadv0: Interface activated: ipvlan1 [ 122.600335] FAULT_INJECTION: forcing a failure. [ 122.600335] name failslab, interval 1, probability 0, space 0, times 0 [ 122.613278] CPU: 0 PID: 8349 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 122.621069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.630533] Call Trace: [ 122.633100] dump_stack+0xf7/0x13b [ 122.636630] should_fail.cold.3+0x105/0x14b [ 122.640952] should_failslab+0xba/0xf0 [ 122.644818] kmem_cache_alloc_node_trace+0x279/0x780 [ 122.649898] __kmalloc_node_track_caller+0x3c/0x70 [ 122.654809] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 122.659575] __alloc_skb+0xc1/0x500 [ 122.663189] ? skb_trim+0x160/0x160 [ 122.666793] ? if_nlmsg_size+0x2d9/0x6f0 [ 122.670830] rtmsg_ifinfo_build_skb+0x68/0x120 [ 122.675496] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 122.680319] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 122.685225] rtnetlink_event+0xc2/0x110 [ 122.689174] notifier_call_chain+0xd6/0x150 [ 122.693481] raw_notifier_call_chain+0x11/0x20 [ 122.698048] call_netdevice_notifiers_info+0x4b/0x60 [ 122.703145] __netdev_upper_dev_link+0x18e/0x1f0 [ 122.707876] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 122.712618] netdev_master_upper_dev_link+0x14/0x20 [ 122.717617] batadv_hardif_enable_interface+0x1f4/0xa10 [ 122.722967] batadv_softif_slave_add+0x7f/0xd0 [ 122.727542] do_set_master+0x163/0x1f0 [ 122.731404] do_setlink+0x9dd/0x2c50 [ 122.735192] ? find_held_lock+0x36/0x1d0 [ 122.739237] ? rtnl_register+0x20/0x20 [ 122.743097] ? load_balance+0xb38/0x2190 [ 122.747221] ? lock_downgrade+0x7f0/0x7f0 [ 122.751341] ? lock_pin_lock+0x340/0x340 [ 122.755390] ? __lock_acquire+0x6a4/0x4500 [ 122.759604] ? trace_hardirqs_off+0x10/0x10 [ 122.763912] ? __lock_is_held+0xb5/0x140 [ 122.767948] ? trace_hardirqs_off+0x10/0x10 [ 122.772248] rtnl_newlink+0xe0c/0x1390 [ 122.776126] ? rtnl_link_unregister+0x270/0x270 [ 122.780792] ? finish_task_switch+0x178/0x650 [ 122.785448] ? finish_task_switch+0x14d/0x650 [ 122.789928] ? find_held_lock+0x36/0x1d0 [ 122.793966] ? __mutex_lock+0x8b7/0x14c0 [ 122.798014] ? lock_downgrade+0x7f0/0x7f0 [ 122.802137] ? do_raw_spin_unlock+0x16a/0x250 [ 122.806644] rtnetlink_rcv_msg+0x34c/0x9e0 [ 122.810862] ? rtnl_bridge_getlink+0x760/0x760 [ 122.815420] ? find_held_lock+0x36/0x1d0 [ 122.819471] netlink_rcv_skb+0x133/0x370 [ 122.823520] ? rtnl_bridge_getlink+0x760/0x760 [ 122.828078] ? netlink_ack+0xa00/0xa00 [ 122.831957] ? netlink_deliver_tap+0x8e/0x920 [ 122.836440] rtnetlink_rcv+0x10/0x20 [ 122.840148] netlink_unicast+0x40b/0x600 [ 122.844193] ? netlink_attachskb+0x6d0/0x6d0 [ 122.848695] netlink_sendmsg+0x730/0xbd0 [ 122.852731] ? netlink_unicast+0x600/0x600 [ 122.856964] ? selinux_socket_sendmsg+0x31/0x40 [ 122.861608] ? security_socket_sendmsg+0x6a/0xa0 [ 122.866354] ? netlink_unicast+0x600/0x600 [ 122.870570] sock_sendmsg+0xb5/0xf0 [ 122.874173] ___sys_sendmsg+0x625/0x920 [ 122.878127] ? trace_hardirqs_off+0x10/0x10 [ 122.882516] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 122.887347] ? find_held_lock+0x36/0x1d0 [ 122.891392] ? lock_downgrade+0x7f0/0x7f0 [ 122.895517] ? __fget+0x1ca/0x2f0 [ 122.898945] ? __fget_light+0x166/0x200 [ 122.902905] ? __fdget+0xe/0x10 [ 122.906165] ? sockfd_lookup_light+0x1c/0x150 [ 122.910644] __sys_sendmsg+0xc1/0x140 [ 122.914421] ? SyS_shutdown+0x180/0x180 [ 122.918375] ? __sb_end_write+0xa4/0xd0 [ 122.922324] ? mutex_unlock+0xd/0x10 [ 122.926038] ? do_syscall_64+0x4c/0x5b0 [ 122.930012] ? __sys_sendmsg+0x140/0x140 [ 122.934044] SyS_sendmsg+0xd/0x20 [ 122.937473] do_syscall_64+0x1c7/0x5b0 [ 122.941332] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 122.946165] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 122.951356] RIP: 0033:0x45b399 [ 122.954525] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 122.962341] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 122.969612] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 122.976861] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 122.984122] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 122.991373] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 123.005643] batman_adv: batadv0: Adding interface: veth0_virt_wifi [ 123.012105] batman_adv: batadv0: The MTU of interface veth0_virt_wifi 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. [ 123.040163] batman_adv: batadv0: Interface activated: veth0_virt_wifi [ 123.048183] FAULT_INJECTION: forcing a failure. [ 123.048183] name failslab, interval 1, probability 0, space 0, times 0 [ 123.062386] CPU: 0 PID: 8353 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 123.070194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.079543] Call Trace: [ 123.082131] dump_stack+0xf7/0x13b [ 123.085676] should_fail.cold.3+0x105/0x14b [ 123.090690] should_failslab+0xba/0xf0 [ 123.094577] kmem_cache_alloc_node+0x287/0x790 [ 123.099160] __alloc_skb+0x92/0x500 [ 123.102781] ? skb_trim+0x160/0x160 [ 123.106400] ? if_nlmsg_size+0x2d9/0x6f0 [ 123.110457] rtmsg_ifinfo_build_skb+0x68/0x120 [ 123.115039] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 123.119877] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 123.124800] rtnetlink_event+0xc2/0x110 [ 123.128761] notifier_call_chain+0xd6/0x150 [ 123.133059] raw_notifier_call_chain+0x11/0x20 [ 123.137621] call_netdevice_notifiers_info+0x4b/0x60 [ 123.142699] __netdev_upper_dev_link+0x18e/0x1f0 [ 123.147431] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 123.152167] netdev_master_upper_dev_link+0x14/0x20 [ 123.157169] batadv_hardif_enable_interface+0x1f4/0xa10 [ 123.162569] batadv_softif_slave_add+0x7f/0xd0 [ 123.167144] do_set_master+0x163/0x1f0 [ 123.171120] do_setlink+0x9dd/0x2c50 [ 123.174824] ? find_held_lock+0x36/0x1d0 [ 123.178874] ? rtnl_register+0x20/0x20 [ 123.182745] ? load_balance+0xb38/0x2190 [ 123.186868] ? lock_downgrade+0x7f0/0x7f0 [ 123.190996] ? lock_pin_lock+0x340/0x340 [ 123.195050] ? __lock_acquire+0x6a4/0x4500 [ 123.199344] ? trace_hardirqs_off+0x10/0x10 [ 123.203666] ? __lock_is_held+0xb5/0x140 [ 123.207712] ? trace_hardirqs_off+0x10/0x10 [ 123.212115] rtnl_newlink+0xe0c/0x1390 [ 123.216009] ? rtnl_link_unregister+0x270/0x270 [ 123.220753] ? finish_task_switch+0x178/0x650 [ 123.225244] ? finish_task_switch+0x14d/0x650 [ 123.229742] ? find_held_lock+0x36/0x1d0 [ 123.233810] ? __mutex_lock+0x8b7/0x14c0 [ 123.237852] ? lock_downgrade+0x7f0/0x7f0 [ 123.241985] ? do_raw_spin_unlock+0x16a/0x250 [ 123.246476] rtnetlink_rcv_msg+0x34c/0x9e0 [ 123.250707] ? rtnl_bridge_getlink+0x760/0x760 [ 123.255275] ? find_held_lock+0x36/0x1d0 [ 123.259323] netlink_rcv_skb+0x133/0x370 [ 123.263380] ? rtnl_bridge_getlink+0x760/0x760 [ 123.267955] ? netlink_ack+0xa00/0xa00 [ 123.271819] ? netlink_deliver_tap+0x8e/0x920 [ 123.276304] rtnetlink_rcv+0x10/0x20 [ 123.280020] netlink_unicast+0x40b/0x600 [ 123.284060] ? netlink_attachskb+0x6d0/0x6d0 [ 123.288452] netlink_sendmsg+0x730/0xbd0 [ 123.292573] ? netlink_unicast+0x600/0x600 [ 123.296806] ? selinux_socket_sendmsg+0x31/0x40 [ 123.301452] ? security_socket_sendmsg+0x6a/0xa0 [ 123.306188] ? netlink_unicast+0x600/0x600 [ 123.310408] sock_sendmsg+0xb5/0xf0 [ 123.314165] ___sys_sendmsg+0x625/0x920 [ 123.318147] ? trace_hardirqs_off+0x10/0x10 [ 123.322449] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 123.327188] ? find_held_lock+0x36/0x1d0 [ 123.331246] ? lock_downgrade+0x7f0/0x7f0 [ 123.335387] ? __fget+0x1ca/0x2f0 [ 123.338827] ? __fget_light+0x166/0x200 [ 123.342779] ? __fdget+0xe/0x10 [ 123.346051] ? sockfd_lookup_light+0x1c/0x150 [ 123.350543] __sys_sendmsg+0xc1/0x140 [ 123.354321] ? SyS_shutdown+0x180/0x180 [ 123.358294] ? __sb_end_write+0xa4/0xd0 [ 123.362250] ? mutex_unlock+0xd/0x10 [ 123.365960] ? do_syscall_64+0x4c/0x5b0 [ 123.369937] ? __sys_sendmsg+0x140/0x140 [ 123.373972] SyS_sendmsg+0xd/0x20 [ 123.377404] do_syscall_64+0x1c7/0x5b0 [ 123.381284] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 123.386117] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 123.391371] RIP: 0033:0x45b399 [ 123.394564] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 123.402262] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 123.409515] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 123.417286] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 123.424634] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 123.431894] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 123.441402] batman_adv: batadv0: Adding interface: veth1_vlan [ 123.447444] batman_adv: batadv0: The MTU of interface veth1_vlan 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. [ 123.472676] batman_adv: batadv0: Interface activated: veth1_vlan [ 123.479989] FAULT_INJECTION: forcing a failure. [ 123.479989] name failslab, interval 1, probability 0, space 0, times 0 [ 123.497631] CPU: 1 PID: 8357 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 123.505456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.514810] Call Trace: [ 123.517551] dump_stack+0xf7/0x13b [ 123.521187] should_fail.cold.3+0x105/0x14b [ 123.525505] should_failslab+0xba/0xf0 [ 123.529381] kmem_cache_alloc_node_trace+0x279/0x780 [ 123.534555] __kmalloc_node_track_caller+0x3c/0x70 [ 123.539474] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 123.544331] __alloc_skb+0xc1/0x500 [ 123.547961] ? skb_trim+0x160/0x160 [ 123.551573] ? if_nlmsg_size+0x2d9/0x6f0 [ 123.555622] rtmsg_ifinfo_build_skb+0x68/0x120 [ 123.560188] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 123.565029] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 123.570164] rtnetlink_event+0xc2/0x110 [ 123.574143] notifier_call_chain+0xd6/0x150 [ 123.578455] raw_notifier_call_chain+0x11/0x20 [ 123.583043] call_netdevice_notifiers_info+0x4b/0x60 [ 123.588132] __netdev_upper_dev_link+0x18e/0x1f0 [ 123.592971] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 123.597716] netdev_master_upper_dev_link+0x14/0x20 [ 123.602714] batadv_hardif_enable_interface+0x1f4/0xa10 [ 123.608068] batadv_softif_slave_add+0x7f/0xd0 [ 123.612684] do_set_master+0x163/0x1f0 [ 123.616667] do_setlink+0x9dd/0x2c50 [ 123.620376] ? rtnl_register+0x20/0x20 [ 123.624295] ? __lock_acquire+0x6a4/0x4500 [ 123.628629] ? trace_hardirqs_off+0x10/0x10 [ 123.632949] rtnl_newlink+0xe0c/0x1390 [ 123.636848] ? rtnl_link_unregister+0x270/0x270 [ 123.641630] ? finish_task_switch+0x178/0x650 [ 123.646102] ? finish_task_switch+0x14d/0x650 [ 123.650579] ? find_held_lock+0x36/0x1d0 [ 123.654621] ? __mutex_lock+0x8b7/0x14c0 [ 123.658661] ? lock_downgrade+0x7f0/0x7f0 [ 123.662788] ? do_raw_spin_unlock+0x16a/0x250 [ 123.667471] rtnetlink_rcv_msg+0x34c/0x9e0 [ 123.671684] ? rtnl_bridge_getlink+0x760/0x760 [ 123.676243] ? find_held_lock+0x36/0x1d0 [ 123.680346] netlink_rcv_skb+0x133/0x370 [ 123.684391] ? rtnl_bridge_getlink+0x760/0x760 [ 123.688958] ? netlink_ack+0xa00/0xa00 [ 123.692821] ? netlink_deliver_tap+0x8e/0x920 [ 123.697295] rtnetlink_rcv+0x10/0x20 [ 123.700988] netlink_unicast+0x40b/0x600 [ 123.705033] ? netlink_attachskb+0x6d0/0x6d0 [ 123.709438] netlink_sendmsg+0x730/0xbd0 [ 123.713475] ? netlink_unicast+0x600/0x600 [ 123.717694] ? selinux_socket_sendmsg+0x31/0x40 [ 123.722379] ? security_socket_sendmsg+0x6a/0xa0 [ 123.727108] ? netlink_unicast+0x600/0x600 [ 123.731319] sock_sendmsg+0xb5/0xf0 [ 123.734943] ___sys_sendmsg+0x625/0x920 [ 123.738916] ? trace_hardirqs_off+0x10/0x10 [ 123.743221] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 123.747963] ? find_held_lock+0x36/0x1d0 [ 123.752015] ? lock_downgrade+0x7f0/0x7f0 [ 123.756148] ? __fget+0x1ca/0x2f0 [ 123.759576] ? __fget_light+0x166/0x200 [ 123.763538] ? __fdget+0xe/0x10 [ 123.766805] ? sockfd_lookup_light+0x1c/0x150 [ 123.771273] __sys_sendmsg+0xc1/0x140 [ 123.775051] ? SyS_shutdown+0x180/0x180 [ 123.779000] ? __sb_end_write+0xa4/0xd0 [ 123.782952] ? mutex_unlock+0xd/0x10 [ 123.786658] ? do_syscall_64+0x4c/0x5b0 [ 123.790607] ? __sys_sendmsg+0x140/0x140 [ 123.794655] SyS_sendmsg+0xd/0x20 [ 123.798082] do_syscall_64+0x1c7/0x5b0 [ 123.801949] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 123.806776] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 123.811943] RIP: 0033:0x45b399 [ 123.815114] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 123.822794] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 123.830049] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 123.837295] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 123.844555] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 123.851799] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 123.875115] batman_adv: batadv0: Adding interface: veth0_vlan [ 123.881023] batman_adv: batadv0: The MTU of interface veth0_vlan 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. [ 123.916265] batman_adv: batadv0: Interface activated: veth0_vlan [ 123.923158] FAULT_INJECTION: forcing a failure. [ 123.923158] name failslab, interval 1, probability 0, space 0, times 0 [ 123.935420] CPU: 0 PID: 8359 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 123.943218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.952562] Call Trace: [ 123.955147] dump_stack+0xf7/0x13b [ 123.958690] should_fail.cold.3+0x105/0x14b [ 123.963018] should_failslab+0xba/0xf0 [ 123.966900] kmem_cache_alloc_node_trace+0x279/0x780 [ 123.971993] __kmalloc_node_track_caller+0x3c/0x70 [ 123.976902] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 123.981867] __alloc_skb+0xc1/0x500 [ 123.985489] ? skb_trim+0x160/0x160 [ 123.989228] ? if_nlmsg_size+0x2d9/0x6f0 [ 123.993278] rtmsg_ifinfo_build_skb+0x68/0x120 [ 123.997839] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 124.002661] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 124.007586] rtnetlink_event+0xc2/0x110 [ 124.011535] notifier_call_chain+0xd6/0x150 [ 124.015832] raw_notifier_call_chain+0x11/0x20 [ 124.020386] call_netdevice_notifiers_info+0x4b/0x60 [ 124.025463] __netdev_upper_dev_link+0x18e/0x1f0 [ 124.030223] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 124.034956] netdev_master_upper_dev_link+0x14/0x20 [ 124.040033] batadv_hardif_enable_interface+0x1f4/0xa10 [ 124.045387] batadv_softif_slave_add+0x7f/0xd0 [ 124.049953] do_set_master+0x163/0x1f0 [ 124.053814] do_setlink+0x9dd/0x2c50 [ 124.057514] ? find_held_lock+0x36/0x1d0 [ 124.061569] ? rtnl_register+0x20/0x20 [ 124.065439] ? load_balance+0xb38/0x2190 [ 124.069492] ? lock_downgrade+0x7f0/0x7f0 [ 124.073612] ? lock_pin_lock+0x340/0x340 [ 124.077649] ? __lock_acquire+0x6a4/0x4500 [ 124.081858] ? trace_hardirqs_off+0x10/0x10 [ 124.086177] ? __lock_is_held+0xb5/0x140 [ 124.090212] ? trace_hardirqs_off+0x10/0x10 [ 124.094523] rtnl_newlink+0xe0c/0x1390 [ 124.098389] ? rtnl_link_unregister+0x270/0x270 [ 124.103053] ? finish_task_switch+0x178/0x650 [ 124.107536] ? finish_task_switch+0x14d/0x650 [ 124.112006] ? find_held_lock+0x36/0x1d0 [ 124.116044] ? __mutex_lock+0x8b7/0x14c0 [ 124.120090] ? lock_downgrade+0x7f0/0x7f0 [ 124.124211] ? do_raw_spin_unlock+0x16a/0x250 [ 124.128694] rtnetlink_rcv_msg+0x34c/0x9e0 [ 124.132918] ? rtnl_bridge_getlink+0x760/0x760 [ 124.137485] ? find_held_lock+0x36/0x1d0 [ 124.141532] netlink_rcv_skb+0x133/0x370 [ 124.145568] ? rtnl_bridge_getlink+0x760/0x760 [ 124.150139] ? netlink_ack+0xa00/0xa00 [ 124.154122] ? netlink_deliver_tap+0x8e/0x920 [ 124.158603] rtnetlink_rcv+0x10/0x20 [ 124.162292] netlink_unicast+0x40b/0x600 [ 124.166329] ? netlink_attachskb+0x6d0/0x6d0 [ 124.170726] netlink_sendmsg+0x730/0xbd0 [ 124.174777] ? netlink_unicast+0x600/0x600 [ 124.179007] ? selinux_socket_sendmsg+0x31/0x40 [ 124.183655] ? security_socket_sendmsg+0x6a/0xa0 [ 124.188402] ? netlink_unicast+0x600/0x600 [ 124.192635] sock_sendmsg+0xb5/0xf0 [ 124.196247] ___sys_sendmsg+0x625/0x920 [ 124.200208] ? trace_hardirqs_off+0x10/0x10 [ 124.204502] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 124.209253] ? find_held_lock+0x36/0x1d0 [ 124.213294] ? lock_downgrade+0x7f0/0x7f0 [ 124.217425] ? __fget+0x1ca/0x2f0 [ 124.220855] ? __fget_light+0x166/0x200 [ 124.224815] ? __fdget+0xe/0x10 [ 124.228079] ? sockfd_lookup_light+0x1c/0x150 [ 124.232565] __sys_sendmsg+0xc1/0x140 [ 124.236338] ? SyS_shutdown+0x180/0x180 [ 124.240294] ? __sb_end_write+0xa4/0xd0 [ 124.244261] ? mutex_unlock+0xd/0x10 [ 124.247962] ? do_syscall_64+0x4c/0x5b0 [ 124.252002] ? __sys_sendmsg+0x140/0x140 [ 124.256049] SyS_sendmsg+0xd/0x20 [ 124.259483] do_syscall_64+0x1c7/0x5b0 [ 124.263509] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 124.268368] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 124.273546] RIP: 0033:0x45b399 [ 124.276757] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 124.284789] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 124.292218] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 124.299469] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 124.306717] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 124.313975] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 124.323496] batman_adv: batadv0: Adding interface: veth0_vlan [ 124.329861] batman_adv: batadv0: The MTU of interface veth0_vlan 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. [ 124.355017] batman_adv: batadv0: Interface activated: veth0_vlan [ 124.361906] FAULT_INJECTION: forcing a failure. [ 124.361906] name failslab, interval 1, probability 0, space 0, times 0 [ 124.380405] CPU: 1 PID: 8363 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 124.388245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 124.397590] Call Trace: [ 124.400163] dump_stack+0xf7/0x13b [ 124.403745] should_fail.cold.3+0x105/0x14b [ 124.408045] should_failslab+0xba/0xf0 [ 124.411965] kmem_cache_alloc_node_trace+0x279/0x780 [ 124.417062] __kmalloc_node_track_caller+0x3c/0x70 [ 124.421967] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 124.426807] __alloc_skb+0xc1/0x500 [ 124.430531] ? skb_trim+0x160/0x160 [ 124.434145] ? if_nlmsg_size+0x2d9/0x6f0 [ 124.438192] rtmsg_ifinfo_build_skb+0x68/0x120 [ 124.442928] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 124.448545] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 124.453450] rtnetlink_event+0xc2/0x110 [ 124.457417] notifier_call_chain+0xd6/0x150 [ 124.461726] raw_notifier_call_chain+0x11/0x20 [ 124.466288] call_netdevice_notifiers_info+0x4b/0x60 [ 124.471364] __netdev_upper_dev_link+0x18e/0x1f0 [ 124.476109] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 124.481451] netdev_master_upper_dev_link+0x14/0x20 [ 124.486513] batadv_hardif_enable_interface+0x1f4/0xa10 [ 124.491864] batadv_softif_slave_add+0x7f/0xd0 [ 124.496651] do_set_master+0x163/0x1f0 [ 124.500583] do_setlink+0x9dd/0x2c50 [ 124.504453] ? find_held_lock+0x36/0x1d0 [ 124.508496] ? rtnl_register+0x20/0x20 [ 124.512367] ? load_balance+0xb38/0x2190 [ 124.516534] ? lock_downgrade+0x7f0/0x7f0 [ 124.520798] ? lock_pin_lock+0x340/0x340 [ 124.524842] ? __lock_acquire+0x6a4/0x4500 [ 124.529054] ? trace_hardirqs_off+0x10/0x10 [ 124.534409] ? __lock_is_held+0xb5/0x140 [ 124.538667] ? trace_hardirqs_off+0x10/0x10 [ 124.542975] rtnl_newlink+0xe0c/0x1390 [ 124.546848] ? rtnl_link_unregister+0x270/0x270 [ 124.551618] ? finish_task_switch+0x178/0x650 [ 124.556098] ? finish_task_switch+0x14d/0x650 [ 124.560574] ? find_held_lock+0x36/0x1d0 [ 124.564875] ? __mutex_lock+0x8b7/0x14c0 [ 124.568958] ? lock_downgrade+0x7f0/0x7f0 [ 124.573110] ? do_raw_spin_unlock+0x16a/0x250 [ 124.577594] rtnetlink_rcv_msg+0x34c/0x9e0 [ 124.581802] ? rtnl_bridge_getlink+0x760/0x760 [ 124.586403] ? find_held_lock+0x36/0x1d0 [ 124.590449] netlink_rcv_skb+0x133/0x370 [ 124.594486] ? rtnl_bridge_getlink+0x760/0x760 [ 124.599042] ? netlink_ack+0xa00/0xa00 [ 124.603003] ? netlink_deliver_tap+0x8e/0x920 [ 124.607473] rtnetlink_rcv+0x10/0x20 [ 124.611164] netlink_unicast+0x40b/0x600 [ 124.615213] ? netlink_attachskb+0x6d0/0x6d0 [ 124.619611] netlink_sendmsg+0x730/0xbd0 [ 124.623659] ? netlink_unicast+0x600/0x600 [ 124.627868] ? selinux_socket_sendmsg+0x31/0x40 [ 124.632523] ? security_socket_sendmsg+0x6a/0xa0 [ 124.637255] ? netlink_unicast+0x600/0x600 [ 124.641571] sock_sendmsg+0xb5/0xf0 [ 124.645178] ___sys_sendmsg+0x625/0x920 [ 124.649142] ? trace_hardirqs_off+0x10/0x10 [ 124.653440] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 124.658182] ? find_held_lock+0x36/0x1d0 [ 124.662226] ? lock_downgrade+0x7f0/0x7f0 [ 124.666401] ? __fget+0x1ca/0x2f0 [ 124.669894] ? __fget_light+0x166/0x200 [ 124.673849] ? __fdget+0xe/0x10 [ 124.677103] ? sockfd_lookup_light+0x1c/0x150 [ 124.681579] __sys_sendmsg+0xc1/0x140 [ 124.685360] ? SyS_shutdown+0x180/0x180 [ 124.689361] ? __sb_end_write+0xa4/0xd0 [ 124.693315] ? mutex_unlock+0xd/0x10 [ 124.697022] ? do_syscall_64+0x4c/0x5b0 [ 124.700981] ? __sys_sendmsg+0x140/0x140 [ 124.705293] SyS_sendmsg+0xd/0x20 [ 124.708722] do_syscall_64+0x1c7/0x5b0 [ 124.712583] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 124.717408] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 124.722577] RIP: 0033:0x45b399 [ 124.725738] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 124.733428] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 124.740672] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 124.747937] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 124.755205] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 124.762456] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 124.785846] batman_adv: batadv0: Adding interface: macvlan0 2020/06/04 21:06:43 executed programs: 152 [ 124.791578] batman_adv: batadv0: The MTU of interface macvlan0 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. [ 124.816639] batman_adv: batadv0: Interface activated: macvlan0 [ 124.823540] FAULT_INJECTION: forcing a failure. [ 124.823540] name failslab, interval 1, probability 0, space 0, times 0 [ 124.835517] CPU: 1 PID: 8368 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 124.843310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 124.852653] Call Trace: [ 124.855237] dump_stack+0xf7/0x13b [ 124.858784] should_fail.cold.3+0x105/0x14b [ 124.863107] should_failslab+0xba/0xf0 [ 124.866987] kmem_cache_alloc_node_trace+0x279/0x780 [ 124.872075] __kmalloc_node_track_caller+0x3c/0x70 [ 124.876999] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 124.881730] __alloc_skb+0xc1/0x500 [ 124.885334] ? skb_trim+0x160/0x160 [ 124.888943] ? if_nlmsg_size+0x2d9/0x6f0 [ 124.892995] rtmsg_ifinfo_build_skb+0x68/0x120 [ 124.897563] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 124.902381] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 124.907282] rtnetlink_event+0xc2/0x110 [ 124.911231] notifier_call_chain+0xd6/0x150 [ 124.915527] raw_notifier_call_chain+0x11/0x20 [ 124.920084] call_netdevice_notifiers_info+0x4b/0x60 [ 124.925159] __netdev_upper_dev_link+0x18e/0x1f0 [ 124.929901] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 124.934730] netdev_master_upper_dev_link+0x14/0x20 [ 124.939721] batadv_hardif_enable_interface+0x1f4/0xa10 [ 124.945062] batadv_softif_slave_add+0x7f/0xd0 [ 124.949620] do_set_master+0x163/0x1f0 [ 124.953486] do_setlink+0x9dd/0x2c50 [ 124.957184] ? find_held_lock+0x36/0x1d0 [ 124.961232] ? rtnl_register+0x20/0x20 [ 124.965102] ? load_balance+0xb38/0x2190 [ 124.969159] ? lock_downgrade+0x7f0/0x7f0 [ 124.973343] ? lock_pin_lock+0x340/0x340 [ 124.977444] ? __lock_acquire+0x6a4/0x4500 [ 124.981653] ? trace_hardirqs_off+0x10/0x10 [ 124.986071] ? __lock_is_held+0xb5/0x140 [ 124.990206] ? trace_hardirqs_off+0x10/0x10 [ 124.994513] rtnl_newlink+0xe0c/0x1390 [ 124.998385] ? rtnl_link_unregister+0x270/0x270 [ 125.003031] ? finish_task_switch+0x178/0x650 [ 125.007506] ? finish_task_switch+0x14d/0x650 [ 125.011987] ? find_held_lock+0x36/0x1d0 [ 125.016029] ? __mutex_lock+0x8b7/0x14c0 [ 125.020081] ? lock_downgrade+0x7f0/0x7f0 [ 125.024520] ? do_raw_spin_unlock+0x16a/0x250 [ 125.029012] rtnetlink_rcv_msg+0x34c/0x9e0 [ 125.033237] ? rtnl_bridge_getlink+0x760/0x760 [ 125.037795] ? find_held_lock+0x36/0x1d0 [ 125.041848] netlink_rcv_skb+0x133/0x370 [ 125.045892] ? rtnl_bridge_getlink+0x760/0x760 [ 125.050526] ? netlink_ack+0xa00/0xa00 [ 125.054400] ? netlink_deliver_tap+0x8e/0x920 [ 125.058891] rtnetlink_rcv+0x10/0x20 [ 125.062589] netlink_unicast+0x40b/0x600 [ 125.066632] ? netlink_attachskb+0x6d0/0x6d0 [ 125.071031] netlink_sendmsg+0x730/0xbd0 [ 125.075074] ? netlink_unicast+0x600/0x600 [ 125.079284] ? selinux_socket_sendmsg+0x31/0x40 [ 125.083928] ? security_socket_sendmsg+0x6a/0xa0 [ 125.088660] ? netlink_unicast+0x600/0x600 [ 125.092872] sock_sendmsg+0xb5/0xf0 [ 125.096480] ___sys_sendmsg+0x625/0x920 [ 125.100431] ? trace_hardirqs_off+0x10/0x10 [ 125.104729] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 125.109472] ? find_held_lock+0x36/0x1d0 [ 125.113531] ? lock_downgrade+0x7f0/0x7f0 [ 125.117659] ? __fget+0x1ca/0x2f0 [ 125.121096] ? __fget_light+0x166/0x200 [ 125.125045] ? __fdget+0xe/0x10 [ 125.128298] ? sockfd_lookup_light+0x1c/0x150 [ 125.132765] __sys_sendmsg+0xc1/0x140 [ 125.136559] ? SyS_shutdown+0x180/0x180 [ 125.140767] ? __sb_end_write+0xa4/0xd0 [ 125.144722] ? mutex_unlock+0xd/0x10 [ 125.148419] ? do_syscall_64+0x4c/0x5b0 [ 125.152366] ? __sys_sendmsg+0x140/0x140 [ 125.156404] SyS_sendmsg+0xd/0x20 [ 125.159830] do_syscall_64+0x1c7/0x5b0 [ 125.163701] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 125.168523] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 125.173775] RIP: 0033:0x45b399 [ 125.176940] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 125.184624] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 125.191880] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 125.199132] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 125.206384] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 125.213638] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 125.223389] batman_adv: batadv0: Adding interface: veth0_macvtap [ 125.229696] batman_adv: batadv0: The MTU of interface veth0_macvtap 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. [ 125.254864] batman_adv: batadv0: Interface activated: veth0_macvtap [ 125.262096] FAULT_INJECTION: forcing a failure. [ 125.262096] name failslab, interval 1, probability 0, space 0, times 0 [ 125.274670] CPU: 1 PID: 8373 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 125.282729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 125.292074] Call Trace: [ 125.294654] dump_stack+0xf7/0x13b [ 125.298190] should_fail.cold.3+0x105/0x14b [ 125.302513] should_failslab+0xba/0xf0 [ 125.306394] kmem_cache_alloc_node+0x287/0x790 [ 125.310977] __alloc_skb+0x92/0x500 [ 125.314597] ? skb_trim+0x160/0x160 [ 125.318216] ? if_nlmsg_size+0x2d9/0x6f0 [ 125.322272] rtmsg_ifinfo_build_skb+0x68/0x120 [ 125.326852] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 125.331687] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 125.336609] rtnetlink_event+0xc2/0x110 [ 125.340574] notifier_call_chain+0xd6/0x150 [ 125.344893] raw_notifier_call_chain+0x11/0x20 [ 125.349468] call_netdevice_notifiers_info+0x4b/0x60 [ 125.354557] __netdev_upper_dev_link+0x18e/0x1f0 [ 125.359302] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 125.364130] netdev_master_upper_dev_link+0x14/0x20 [ 125.369140] batadv_hardif_enable_interface+0x1f4/0xa10 [ 125.374499] batadv_softif_slave_add+0x7f/0xd0 [ 125.379082] do_set_master+0x163/0x1f0 [ 125.382950] do_setlink+0x9dd/0x2c50 [ 125.386639] ? find_held_lock+0x36/0x1d0 [ 125.390677] ? rtnl_register+0x20/0x20 [ 125.394552] ? load_balance+0xb38/0x2190 [ 125.398596] ? lock_downgrade+0x7f0/0x7f0 [ 125.402717] ? lock_pin_lock+0x340/0x340 [ 125.406758] ? __lock_acquire+0x6a4/0x4500 [ 125.410970] ? trace_hardirqs_off+0x10/0x10 [ 125.415300] ? __lock_is_held+0xb5/0x140 [ 125.419357] ? trace_hardirqs_off+0x10/0x10 [ 125.423674] rtnl_newlink+0xe0c/0x1390 [ 125.427555] ? rtnl_link_unregister+0x270/0x270 [ 125.432220] ? finish_task_switch+0x178/0x650 [ 125.436688] ? finish_task_switch+0x14d/0x650 [ 125.441173] ? find_held_lock+0x36/0x1d0 [ 125.445318] ? __mutex_lock+0x8b7/0x14c0 [ 125.449375] ? lock_downgrade+0x7f0/0x7f0 [ 125.453513] ? do_raw_spin_unlock+0x16a/0x250 [ 125.457997] rtnetlink_rcv_msg+0x34c/0x9e0 [ 125.462207] ? rtnl_bridge_getlink+0x760/0x760 [ 125.466763] ? find_held_lock+0x36/0x1d0 [ 125.470802] netlink_rcv_skb+0x133/0x370 [ 125.474839] ? rtnl_bridge_getlink+0x760/0x760 [ 125.479404] ? netlink_ack+0xa00/0xa00 [ 125.483278] ? netlink_deliver_tap+0x8e/0x920 [ 125.487843] rtnetlink_rcv+0x10/0x20 [ 125.491540] netlink_unicast+0x40b/0x600 [ 125.495577] ? netlink_attachskb+0x6d0/0x6d0 [ 125.499974] netlink_sendmsg+0x730/0xbd0 [ 125.504018] ? netlink_unicast+0x600/0x600 [ 125.508276] ? selinux_socket_sendmsg+0x31/0x40 [ 125.512964] ? security_socket_sendmsg+0x6a/0xa0 [ 125.517704] ? netlink_unicast+0x600/0x600 [ 125.521916] sock_sendmsg+0xb5/0xf0 [ 125.525530] ___sys_sendmsg+0x625/0x920 [ 125.529489] ? trace_hardirqs_off+0x10/0x10 [ 125.533796] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 125.538544] ? find_held_lock+0x36/0x1d0 [ 125.542675] ? lock_downgrade+0x7f0/0x7f0 [ 125.546804] ? __fget+0x1ca/0x2f0 [ 125.550235] ? __fget_light+0x166/0x200 [ 125.554184] ? __fdget+0xe/0x10 [ 125.557444] ? sockfd_lookup_light+0x1c/0x150 [ 125.561919] __sys_sendmsg+0xc1/0x140 [ 125.565694] ? SyS_shutdown+0x180/0x180 [ 125.569645] ? __sb_end_write+0xa4/0xd0 [ 125.573621] ? mutex_unlock+0xd/0x10 [ 125.577326] ? do_syscall_64+0x4c/0x5b0 [ 125.581277] ? __sys_sendmsg+0x140/0x140 [ 125.585310] SyS_sendmsg+0xd/0x20 [ 125.588743] do_syscall_64+0x1c7/0x5b0 [ 125.592680] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 125.597514] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 125.602684] RIP: 0033:0x45b399 [ 125.605855] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 125.613744] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 125.621001] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 125.628254] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 125.635515] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 125.642771] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 125.651430] batman_adv: batadv0: Adding interface: veth0_vlan [ 125.657359] batman_adv: batadv0: The MTU of interface veth0_vlan 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. [ 125.682670] batman_adv: batadv0: Interface activated: veth0_vlan [ 125.690181] FAULT_INJECTION: forcing a failure. [ 125.690181] name failslab, interval 1, probability 0, space 0, times 0 [ 125.707288] CPU: 0 PID: 8376 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 125.715087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 125.724433] Call Trace: [ 125.727014] dump_stack+0xf7/0x13b [ 125.730546] should_fail.cold.3+0x105/0x14b [ 125.734859] should_failslab+0xba/0xf0 [ 125.738731] kmem_cache_alloc_node_trace+0x279/0x780 [ 125.743820] __kmalloc_node_track_caller+0x3c/0x70 [ 125.748726] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 125.753464] __alloc_skb+0xc1/0x500 [ 125.757073] ? skb_trim+0x160/0x160 [ 125.760676] ? if_nlmsg_size+0x2d9/0x6f0 [ 125.764738] rtmsg_ifinfo_build_skb+0x68/0x120 [ 125.769304] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 125.774117] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 125.779021] rtnetlink_event+0xc2/0x110 [ 125.782968] notifier_call_chain+0xd6/0x150 [ 125.787267] raw_notifier_call_chain+0x11/0x20 [ 125.791823] call_netdevice_notifiers_info+0x4b/0x60 [ 125.796915] __netdev_upper_dev_link+0x18e/0x1f0 [ 125.801670] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 125.806409] netdev_master_upper_dev_link+0x14/0x20 [ 125.811401] batadv_hardif_enable_interface+0x1f4/0xa10 [ 125.816755] batadv_softif_slave_add+0x7f/0xd0 [ 125.821324] do_set_master+0x163/0x1f0 [ 125.825217] do_setlink+0x9dd/0x2c50 [ 125.829866] ? rtnl_register+0x20/0x20 [ 125.833743] ? __lock_acquire+0x6a4/0x4500 [ 125.837970] ? trace_hardirqs_off+0x10/0x10 [ 125.842268] rtnl_newlink+0xe0c/0x1390 [ 125.846158] ? rtnl_link_unregister+0x270/0x270 [ 125.850821] ? finish_task_switch+0x178/0x650 [ 125.855287] ? finish_task_switch+0x14d/0x650 [ 125.859757] ? find_held_lock+0x36/0x1d0 [ 125.863794] ? __mutex_lock+0x8b7/0x14c0 [ 125.867843] ? lock_downgrade+0x7f0/0x7f0 [ 125.871966] ? do_raw_spin_unlock+0x16a/0x250 [ 125.876449] rtnetlink_rcv_msg+0x34c/0x9e0 [ 125.880659] ? rtnl_bridge_getlink+0x760/0x760 [ 125.885217] ? find_held_lock+0x36/0x1d0 [ 125.889267] netlink_rcv_skb+0x133/0x370 [ 125.893316] ? rtnl_bridge_getlink+0x760/0x760 [ 125.897959] ? netlink_ack+0xa00/0xa00 [ 125.901823] ? netlink_deliver_tap+0x8e/0x920 [ 125.906546] rtnetlink_rcv+0x10/0x20 [ 125.910243] netlink_unicast+0x40b/0x600 [ 125.914365] ? netlink_attachskb+0x6d0/0x6d0 [ 125.918748] netlink_sendmsg+0x730/0xbd0 [ 125.922784] ? netlink_unicast+0x600/0x600 [ 125.927010] ? selinux_socket_sendmsg+0x31/0x40 [ 125.931669] ? security_socket_sendmsg+0x6a/0xa0 [ 125.936397] ? netlink_unicast+0x600/0x600 [ 125.940604] sock_sendmsg+0xb5/0xf0 [ 125.944224] ___sys_sendmsg+0x625/0x920 [ 125.948171] ? trace_hardirqs_off+0x10/0x10 [ 125.952481] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 125.957210] ? find_held_lock+0x36/0x1d0 [ 125.961247] ? lock_downgrade+0x7f0/0x7f0 [ 125.965373] ? __fget+0x1ca/0x2f0 [ 125.968801] ? __fget_light+0x166/0x200 [ 125.972754] ? __fdget+0xe/0x10 [ 125.976124] ? sockfd_lookup_light+0x1c/0x150 [ 125.980605] __sys_sendmsg+0xc1/0x140 [ 125.984391] ? SyS_shutdown+0x180/0x180 [ 125.988352] ? __sb_end_write+0xa4/0xd0 [ 125.992301] ? mutex_unlock+0xd/0x10 [ 125.995998] ? do_syscall_64+0x4c/0x5b0 [ 125.999968] ? __sys_sendmsg+0x140/0x140 [ 126.004003] SyS_sendmsg+0xd/0x20 [ 126.007431] do_syscall_64+0x1c7/0x5b0 [ 126.011378] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 126.016199] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 126.021363] RIP: 0033:0x45b399 [ 126.024540] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 126.032221] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 126.039465] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 126.046725] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 126.053969] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 126.061214] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 126.076482] batman_adv: batadv0: Adding interface: vlan0 [ 126.081942] batman_adv: batadv0: The MTU of interface vlan0 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. [ 126.106386] batman_adv: batadv0: Interface activated: vlan0 [ 126.112680] FAULT_INJECTION: forcing a failure. [ 126.112680] name failslab, interval 1, probability 0, space 0, times 0 [ 126.132851] CPU: 0 PID: 8379 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 126.140661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.150008] Call Trace: [ 126.152590] dump_stack+0xf7/0x13b [ 126.156130] should_fail.cold.3+0x105/0x14b [ 126.160445] should_failslab+0xba/0xf0 [ 126.164346] kmem_cache_alloc_node_trace+0x279/0x780 [ 126.169432] __kmalloc_node_track_caller+0x3c/0x70 [ 126.174358] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 126.179105] __alloc_skb+0xc1/0x500 [ 126.182703] ? skb_trim+0x160/0x160 [ 126.186310] ? if_nlmsg_size+0x2d9/0x6f0 [ 126.190350] rtmsg_ifinfo_build_skb+0x68/0x120 [ 126.194910] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 126.199732] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 126.204645] rtnetlink_event+0xc2/0x110 [ 126.208768] notifier_call_chain+0xd6/0x150 [ 126.213086] raw_notifier_call_chain+0x11/0x20 [ 126.217640] call_netdevice_notifiers_info+0x4b/0x60 [ 126.222730] __netdev_upper_dev_link+0x18e/0x1f0 [ 126.227471] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 126.232212] netdev_master_upper_dev_link+0x14/0x20 [ 126.237204] batadv_hardif_enable_interface+0x1f4/0xa10 [ 126.242602] batadv_softif_slave_add+0x7f/0xd0 [ 126.247168] do_set_master+0x163/0x1f0 [ 126.251036] do_setlink+0x9dd/0x2c50 [ 126.254777] ? find_held_lock+0x36/0x1d0 [ 126.258982] ? rtnl_register+0x20/0x20 [ 126.262875] ? load_balance+0xb38/0x2190 [ 126.266919] ? lock_downgrade+0x7f0/0x7f0 [ 126.271051] ? lock_pin_lock+0x340/0x340 [ 126.275536] ? __lock_acquire+0x6a4/0x4500 [ 126.279872] ? trace_hardirqs_off+0x10/0x10 [ 126.284178] ? __lock_is_held+0xb5/0x140 [ 126.288218] ? trace_hardirqs_off+0x10/0x10 [ 126.292630] rtnl_newlink+0xe0c/0x1390 [ 126.297083] ? rtnl_link_unregister+0x270/0x270 [ 126.301728] ? finish_task_switch+0x178/0x650 [ 126.306200] ? finish_task_switch+0x14d/0x650 [ 126.310681] ? find_held_lock+0x36/0x1d0 [ 126.314729] ? __mutex_lock+0x8b7/0x14c0 [ 126.318765] ? lock_downgrade+0x7f0/0x7f0 [ 126.322887] ? do_raw_spin_unlock+0x16a/0x250 [ 126.327387] rtnetlink_rcv_msg+0x34c/0x9e0 [ 126.331603] ? rtnl_bridge_getlink+0x760/0x760 [ 126.336168] ? find_held_lock+0x36/0x1d0 [ 126.340214] netlink_rcv_skb+0x133/0x370 [ 126.344247] ? rtnl_bridge_getlink+0x760/0x760 [ 126.348801] ? netlink_ack+0xa00/0xa00 [ 126.352664] ? netlink_deliver_tap+0x8e/0x920 [ 126.357147] rtnetlink_rcv+0x10/0x20 [ 126.361026] netlink_unicast+0x40b/0x600 [ 126.365066] ? netlink_attachskb+0x6d0/0x6d0 [ 126.369631] netlink_sendmsg+0x730/0xbd0 [ 126.373674] ? netlink_unicast+0x600/0x600 [ 126.377898] ? selinux_socket_sendmsg+0x31/0x40 [ 126.382573] ? security_socket_sendmsg+0x6a/0xa0 [ 126.387310] ? netlink_unicast+0x600/0x600 [ 126.391615] sock_sendmsg+0xb5/0xf0 [ 126.395310] ___sys_sendmsg+0x625/0x920 [ 126.399342] ? trace_hardirqs_off+0x10/0x10 [ 126.403663] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 126.408402] ? find_held_lock+0x36/0x1d0 [ 126.412734] ? lock_downgrade+0x7f0/0x7f0 [ 126.416870] ? __fget+0x1ca/0x2f0 [ 126.420296] ? __fget_light+0x166/0x200 [ 126.424259] ? __fdget+0xe/0x10 [ 126.427519] ? sockfd_lookup_light+0x1c/0x150 [ 126.432009] __sys_sendmsg+0xc1/0x140 [ 126.435796] ? SyS_shutdown+0x180/0x180 [ 126.439743] ? __sb_end_write+0xa4/0xd0 [ 126.443689] ? mutex_unlock+0xd/0x10 [ 126.447386] ? do_syscall_64+0x4c/0x5b0 [ 126.451338] ? __sys_sendmsg+0x140/0x140 [ 126.455374] SyS_sendmsg+0xd/0x20 [ 126.458818] do_syscall_64+0x1c7/0x5b0 [ 126.462677] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 126.467506] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 126.472675] RIP: 0033:0x45b399 [ 126.475839] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 126.483529] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 126.491400] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 126.498656] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 126.506002] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 126.513253] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 126.524752] batman_adv: batadv0: Adding interface: vlan1 [ 126.530456] batman_adv: batadv0: The MTU of interface vlan1 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. [ 126.555471] batman_adv: batadv0: Interface activated: vlan1 [ 126.562119] FAULT_INJECTION: forcing a failure. [ 126.562119] name failslab, interval 1, probability 0, space 0, times 0 [ 126.574935] CPU: 0 PID: 8384 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 126.582736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.592091] Call Trace: [ 126.594671] dump_stack+0xf7/0x13b [ 126.598202] should_fail.cold.3+0x105/0x14b [ 126.602517] should_failslab+0xba/0xf0 [ 126.606395] kmem_cache_alloc_node_trace+0x279/0x780 [ 126.611663] __kmalloc_node_track_caller+0x3c/0x70 [ 126.616579] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 126.621423] __alloc_skb+0xc1/0x500 [ 126.625032] ? skb_trim+0x160/0x160 [ 126.628641] ? if_nlmsg_size+0x2d9/0x6f0 [ 126.632914] rtmsg_ifinfo_build_skb+0x68/0x120 [ 126.637474] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 126.642295] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 126.647279] rtnetlink_event+0xc2/0x110 [ 126.651284] notifier_call_chain+0xd6/0x150 [ 126.655594] raw_notifier_call_chain+0x11/0x20 [ 126.660158] call_netdevice_notifiers_info+0x4b/0x60 [ 126.665239] __netdev_upper_dev_link+0x18e/0x1f0 [ 126.670023] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 126.674802] netdev_master_upper_dev_link+0x14/0x20 [ 126.679797] batadv_hardif_enable_interface+0x1f4/0xa10 [ 126.685144] batadv_softif_slave_add+0x7f/0xd0 [ 126.689714] do_set_master+0x163/0x1f0 [ 126.693573] do_setlink+0x9dd/0x2c50 [ 126.697263] ? rtnl_register+0x20/0x20 [ 126.701129] ? __lock_acquire+0x6a4/0x4500 [ 126.705350] ? trace_hardirqs_off+0x10/0x10 [ 126.709658] rtnl_newlink+0xe0c/0x1390 [ 126.713524] ? rtnl_link_unregister+0x270/0x270 [ 126.718167] ? finish_task_switch+0x178/0x650 [ 126.722632] ? finish_task_switch+0x14d/0x650 [ 126.727109] ? find_held_lock+0x36/0x1d0 [ 126.731154] ? __mutex_lock+0x8b7/0x14c0 [ 126.735193] ? lock_downgrade+0x7f0/0x7f0 [ 126.739321] ? do_raw_spin_unlock+0x16a/0x250 [ 126.743820] rtnetlink_rcv_msg+0x34c/0x9e0 [ 126.748046] ? rtnl_bridge_getlink+0x760/0x760 [ 126.752619] ? find_held_lock+0x36/0x1d0 [ 126.756664] netlink_rcv_skb+0x133/0x370 [ 126.760723] ? rtnl_bridge_getlink+0x760/0x760 [ 126.765283] ? netlink_ack+0xa00/0xa00 [ 126.769153] ? netlink_deliver_tap+0x8e/0x920 [ 126.773634] rtnetlink_rcv+0x10/0x20 [ 126.777329] netlink_unicast+0x40b/0x600 [ 126.781381] ? netlink_attachskb+0x6d0/0x6d0 [ 126.785771] netlink_sendmsg+0x730/0xbd0 [ 126.789815] ? netlink_unicast+0x600/0x600 [ 126.794031] ? selinux_socket_sendmsg+0x31/0x40 [ 126.798676] ? security_socket_sendmsg+0x6a/0xa0 [ 126.803418] ? netlink_unicast+0x600/0x600 [ 126.807632] sock_sendmsg+0xb5/0xf0 [ 126.811238] ___sys_sendmsg+0x625/0x920 [ 126.815190] ? trace_hardirqs_off+0x10/0x10 [ 126.819493] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 126.824223] ? find_held_lock+0x36/0x1d0 [ 126.828260] ? lock_downgrade+0x7f0/0x7f0 [ 126.832384] ? __fget+0x1ca/0x2f0 [ 126.835819] ? __fget_light+0x166/0x200 [ 126.839789] ? __fdget+0xe/0x10 [ 126.843068] ? sockfd_lookup_light+0x1c/0x150 [ 126.847540] __sys_sendmsg+0xc1/0x140 [ 126.851315] ? SyS_shutdown+0x180/0x180 [ 126.855270] ? __sb_end_write+0xa4/0xd0 [ 126.859226] ? mutex_unlock+0xd/0x10 [ 126.862917] ? do_syscall_64+0x4c/0x5b0 [ 126.866864] ? __sys_sendmsg+0x140/0x140 [ 126.870894] SyS_sendmsg+0xd/0x20 [ 126.874320] do_syscall_64+0x1c7/0x5b0 [ 126.878179] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 126.883018] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 126.888191] RIP: 0033:0x45b399 [ 126.891360] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 126.899065] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 126.906316] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 126.913576] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 126.920834] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 126.928092] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 126.942844] batman_adv: batadv0: Adding interface: vlan1 [ 126.948563] batman_adv: batadv0: The MTU of interface vlan1 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. [ 126.973514] batman_adv: batadv0: Interface activated: vlan1 [ 126.981409] FAULT_INJECTION: forcing a failure. [ 126.981409] name failslab, interval 1, probability 0, space 0, times 0 [ 126.995006] CPU: 0 PID: 8388 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 127.002820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 127.012239] Call Trace: [ 127.014803] dump_stack+0xf7/0x13b [ 127.018325] should_fail.cold.3+0x105/0x14b [ 127.022624] should_failslab+0xba/0xf0 [ 127.026492] kmem_cache_alloc_node_trace+0x279/0x780 [ 127.033675] __kmalloc_node_track_caller+0x3c/0x70 [ 127.038590] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 127.043329] __alloc_skb+0xc1/0x500 [ 127.046946] ? skb_trim+0x160/0x160 [ 127.050555] rtmsg_fib+0x19d/0x460 [ 127.054089] fib_table_insert+0x7ab/0x16a0 [ 127.058306] ? trace_hardirqs_on+0x10/0x10 [ 127.062531] ? fib_triestat_seq_show+0xd80/0xd80 [ 127.067267] fib_magic.isra.19+0x317/0x4b0 [ 127.071480] ? fib_magic.isra.19+0x317/0x4b0 [ 127.075875] ? nl_fib_input+0xbb0/0xbb0 [ 127.079844] fib_add_ifaddr+0x2a5/0x410 [ 127.083795] fib_netdev_event+0x192/0x300 [ 127.087919] notifier_call_chain+0xd6/0x150 [ 127.092221] raw_notifier_call_chain+0x11/0x20 [ 127.096792] call_netdevice_notifiers_info+0x4b/0x60 [ 127.101876] __dev_notify_flags+0xca/0x210 [ 127.106092] ? dev_change_name+0x8f0/0x8f0 [ 127.110331] ? dev_set_allmulti+0x10/0x10 [ 127.114465] dev_change_flags+0xe6/0x150 [ 127.118601] do_setlink+0x96f/0x2c50 [ 127.122300] ? find_held_lock+0x36/0x1d0 [ 127.126347] ? rtnl_register+0x20/0x20 [ 127.130212] ? load_balance+0xb38/0x2190 [ 127.134246] ? lock_downgrade+0x7f0/0x7f0 [ 127.138382] ? lock_pin_lock+0x340/0x340 [ 127.142421] ? __lock_acquire+0x6a4/0x4500 [ 127.146635] ? trace_hardirqs_off+0x10/0x10 [ 127.150936] ? __lock_is_held+0xb5/0x140 [ 127.154973] ? trace_hardirqs_off+0x10/0x10 [ 127.159273] rtnl_newlink+0xe0c/0x1390 [ 127.163151] ? rtnl_link_unregister+0x270/0x270 [ 127.167791] ? finish_task_switch+0x178/0x650 [ 127.172529] ? finish_task_switch+0x14d/0x650 [ 127.177009] ? find_held_lock+0x36/0x1d0 [ 127.181074] ? __mutex_lock+0x8b7/0x14c0 [ 127.185112] ? lock_downgrade+0x7f0/0x7f0 [ 127.189261] ? do_raw_spin_unlock+0x16a/0x250 [ 127.193755] rtnetlink_rcv_msg+0x34c/0x9e0 [ 127.197985] ? rtnl_bridge_getlink+0x760/0x760 [ 127.202541] ? find_held_lock+0x36/0x1d0 [ 127.206674] netlink_rcv_skb+0x133/0x370 [ 127.210730] ? rtnl_bridge_getlink+0x760/0x760 [ 127.215289] ? netlink_ack+0xa00/0xa00 [ 127.219157] ? netlink_deliver_tap+0x8e/0x920 [ 127.223626] rtnetlink_rcv+0x10/0x20 [ 127.227314] netlink_unicast+0x40b/0x600 [ 127.231349] ? netlink_attachskb+0x6d0/0x6d0 [ 127.235743] netlink_sendmsg+0x730/0xbd0 [ 127.239786] ? netlink_unicast+0x600/0x600 [ 127.243995] ? selinux_socket_sendmsg+0x31/0x40 [ 127.248638] ? security_socket_sendmsg+0x6a/0xa0 [ 127.253364] ? netlink_unicast+0x600/0x600 [ 127.257572] sock_sendmsg+0xb5/0xf0 [ 127.261173] ___sys_sendmsg+0x625/0x920 [ 127.265148] ? trace_hardirqs_off+0x10/0x10 [ 127.269453] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 127.274184] ? find_held_lock+0x36/0x1d0 [ 127.278326] ? lock_downgrade+0x7f0/0x7f0 [ 127.282466] ? __fget+0x1ca/0x2f0 [ 127.285899] ? __fget_light+0x166/0x200 [ 127.289852] ? __fdget+0xe/0x10 [ 127.293106] ? sockfd_lookup_light+0x1c/0x150 [ 127.297584] __sys_sendmsg+0xc1/0x140 [ 127.301573] ? SyS_shutdown+0x180/0x180 [ 127.305526] ? __sb_end_write+0xa4/0xd0 [ 127.309486] ? mutex_unlock+0xd/0x10 [ 127.313192] ? do_syscall_64+0x4c/0x5b0 [ 127.317169] ? __sys_sendmsg+0x140/0x140 [ 127.321375] SyS_sendmsg+0xd/0x20 [ 127.324897] do_syscall_64+0x1c7/0x5b0 [ 127.328761] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 127.333588] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 127.338962] RIP: 0033:0x45b399 [ 127.342126] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 127.349816] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 127.357065] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 127.365373] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 127.372633] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 127.379887] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 127.394945] batman_adv: batadv0: Adding interface: ipvlan0 [ 127.400848] batman_adv: batadv0: The MTU of interface ipvlan0 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. [ 127.426042] batman_adv: batadv0: Interface activated: ipvlan0 [ 127.433039] FAULT_INJECTION: forcing a failure. [ 127.433039] name failslab, interval 1, probability 0, space 0, times 0 [ 127.447119] CPU: 0 PID: 8393 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 127.454922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 127.464443] Call Trace: [ 127.467028] dump_stack+0xf7/0x13b [ 127.470566] should_fail.cold.3+0x105/0x14b [ 127.474880] should_failslab+0xba/0xf0 [ 127.478763] kmem_cache_alloc_node_trace+0x279/0x780 [ 127.483865] __kmalloc_node_track_caller+0x3c/0x70 [ 127.488791] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 127.493552] __alloc_skb+0xc1/0x500 [ 127.497241] ? skb_trim+0x160/0x160 [ 127.500868] ? if_nlmsg_size+0x2d9/0x6f0 [ 127.504994] rtmsg_ifinfo_build_skb+0x68/0x120 [ 127.509643] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 127.514582] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 127.520411] rtnetlink_event+0xc2/0x110 [ 127.524373] notifier_call_chain+0xd6/0x150 [ 127.528688] raw_notifier_call_chain+0x11/0x20 [ 127.533276] call_netdevice_notifiers_info+0x4b/0x60 [ 127.538361] __netdev_upper_dev_link+0x18e/0x1f0 [ 127.543094] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 127.547826] netdev_master_upper_dev_link+0x14/0x20 [ 127.552821] batadv_hardif_enable_interface+0x1f4/0xa10 [ 127.558160] batadv_softif_slave_add+0x7f/0xd0 [ 127.562719] do_set_master+0x163/0x1f0 [ 127.566589] do_setlink+0x9dd/0x2c50 [ 127.570303] ? __lock_acquire+0x6a4/0x4500 [ 127.574513] ? rtnl_register+0x20/0x20 [ 127.578391] ? trace_hardirqs_on+0x10/0x10 [ 127.582619] ? __lock_acquire+0x6a4/0x4500 [ 127.586843] ? trace_hardirqs_off+0x10/0x10 [ 127.591161] ? trace_hardirqs_off+0x10/0x10 [ 127.595488] rtnl_newlink+0xe0c/0x1390 [ 127.599413] ? rtnl_link_unregister+0x270/0x270 [ 127.604069] ? finish_task_switch+0x178/0x650 [ 127.608544] ? finish_task_switch+0x14d/0x650 [ 127.613014] ? find_held_lock+0x36/0x1d0 [ 127.617063] ? __mutex_lock+0x8b7/0x14c0 [ 127.621107] ? lock_downgrade+0x7f0/0x7f0 [ 127.625240] ? do_raw_spin_unlock+0x16a/0x250 [ 127.629728] rtnetlink_rcv_msg+0x34c/0x9e0 [ 127.633956] ? rtnl_bridge_getlink+0x760/0x760 [ 127.638522] ? find_held_lock+0x36/0x1d0 [ 127.642566] netlink_rcv_skb+0x133/0x370 [ 127.646605] ? rtnl_bridge_getlink+0x760/0x760 [ 127.651223] ? netlink_ack+0xa00/0xa00 [ 127.655093] ? netlink_deliver_tap+0x8e/0x920 [ 127.659579] rtnetlink_rcv+0x10/0x20 [ 127.663286] netlink_unicast+0x40b/0x600 [ 127.667337] ? netlink_attachskb+0x6d0/0x6d0 [ 127.671780] netlink_sendmsg+0x730/0xbd0 [ 127.676094] ? netlink_unicast+0x600/0x600 [ 127.680319] ? selinux_socket_sendmsg+0x31/0x40 [ 127.684977] ? security_socket_sendmsg+0x6a/0xa0 [ 127.689723] ? netlink_unicast+0x600/0x600 [ 127.693945] sock_sendmsg+0xb5/0xf0 [ 127.697556] ___sys_sendmsg+0x625/0x920 [ 127.701506] ? trace_hardirqs_off+0x10/0x10 [ 127.705815] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 127.710559] ? find_held_lock+0x36/0x1d0 [ 127.714740] ? lock_downgrade+0x7f0/0x7f0 [ 127.718877] ? __fget+0x1ca/0x2f0 [ 127.722310] ? __fget_light+0x166/0x200 [ 127.726358] ? __fdget+0xe/0x10 [ 127.729635] ? sockfd_lookup_light+0x1c/0x150 [ 127.734150] __sys_sendmsg+0xc1/0x140 [ 127.737957] ? SyS_shutdown+0x180/0x180 [ 127.742352] ? __sb_end_write+0xa4/0xd0 [ 127.746317] ? mutex_unlock+0xd/0x10 [ 127.750026] ? do_syscall_64+0x4c/0x5b0 [ 127.754113] ? __sys_sendmsg+0x140/0x140 [ 127.758155] SyS_sendmsg+0xd/0x20 [ 127.761600] do_syscall_64+0x1c7/0x5b0 [ 127.765651] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 127.770481] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 127.775684] RIP: 0033:0x45b399 [ 127.778858] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 127.786549] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 127.793801] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 127.801047] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 127.808297] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 127.815564] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 127.824678] batman_adv: batadv0: Adding interface: macsec0 [ 127.830521] batman_adv: batadv0: The MTU of interface macsec0 is too small (1468) 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. [ 127.855427] batman_adv: batadv0: Interface activated: macsec0 [ 127.862087] FAULT_INJECTION: forcing a failure. [ 127.862087] name failslab, interval 1, probability 0, space 0, times 0 [ 127.880398] CPU: 1 PID: 8395 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 127.888230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 127.897679] Call Trace: [ 127.900246] dump_stack+0xf7/0x13b [ 127.903813] should_fail.cold.3+0x105/0x14b [ 127.908169] should_failslab+0xba/0xf0 [ 127.912030] kmem_cache_alloc_node_trace+0x279/0x780 [ 127.917284] __kmalloc_node_track_caller+0x3c/0x70 [ 127.922187] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 127.926916] __alloc_skb+0xc1/0x500 [ 127.930515] ? skb_trim+0x160/0x160 [ 127.934117] ? if_nlmsg_size+0x2d9/0x6f0 [ 127.938150] rtmsg_ifinfo_build_skb+0x68/0x120 [ 127.942709] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 127.947525] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 127.952427] rtnetlink_event+0xc2/0x110 [ 127.956393] notifier_call_chain+0xd6/0x150 [ 127.960699] raw_notifier_call_chain+0x11/0x20 [ 127.965258] call_netdevice_notifiers_info+0x4b/0x60 [ 127.970352] __netdev_upper_dev_link+0x18e/0x1f0 [ 127.975082] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 127.979812] netdev_master_upper_dev_link+0x14/0x20 [ 127.984807] batadv_hardif_enable_interface+0x1f4/0xa10 [ 127.990163] batadv_softif_slave_add+0x7f/0xd0 [ 127.994817] do_set_master+0x163/0x1f0 [ 127.998679] do_setlink+0x9dd/0x2c50 [ 128.002366] ? find_held_lock+0x36/0x1d0 [ 128.006404] ? rtnl_register+0x20/0x20 [ 128.010267] ? load_balance+0xb38/0x2190 [ 128.014311] ? lock_downgrade+0x7f0/0x7f0 [ 128.018442] ? lock_pin_lock+0x340/0x340 [ 128.022490] ? __lock_acquire+0x6a4/0x4500 [ 128.026698] ? trace_hardirqs_off+0x10/0x10 [ 128.031002] ? __lock_is_held+0xb5/0x140 [ 128.035038] ? trace_hardirqs_off+0x10/0x10 [ 128.039339] rtnl_newlink+0xe0c/0x1390 [ 128.043215] ? rtnl_link_unregister+0x270/0x270 [ 128.047867] ? finish_task_switch+0x178/0x650 [ 128.052350] ? finish_task_switch+0x14d/0x650 [ 128.056824] ? find_held_lock+0x36/0x1d0 [ 128.060885] ? __mutex_lock+0x8b7/0x14c0 [ 128.064920] ? lock_downgrade+0x7f0/0x7f0 [ 128.069044] ? do_raw_spin_unlock+0x16a/0x250 [ 128.073539] rtnetlink_rcv_msg+0x34c/0x9e0 [ 128.077758] ? rtnl_bridge_getlink+0x760/0x760 [ 128.082322] ? find_held_lock+0x36/0x1d0 [ 128.086360] netlink_rcv_skb+0x133/0x370 [ 128.090450] ? rtnl_bridge_getlink+0x760/0x760 [ 128.095117] ? netlink_ack+0xa00/0xa00 [ 128.098985] ? netlink_deliver_tap+0x8e/0x920 [ 128.103456] rtnetlink_rcv+0x10/0x20 [ 128.107523] netlink_unicast+0x40b/0x600 [ 128.111558] ? netlink_attachskb+0x6d0/0x6d0 [ 128.115951] netlink_sendmsg+0x730/0xbd0 [ 128.120001] ? netlink_unicast+0x600/0x600 [ 128.124245] ? selinux_socket_sendmsg+0x31/0x40 [ 128.128917] ? security_socket_sendmsg+0x6a/0xa0 [ 128.133653] ? netlink_unicast+0x600/0x600 [ 128.137914] sock_sendmsg+0xb5/0xf0 [ 128.141516] ___sys_sendmsg+0x625/0x920 [ 128.146398] ? trace_hardirqs_off+0x10/0x10 [ 128.150717] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 128.155451] ? find_held_lock+0x36/0x1d0 [ 128.159501] ? lock_downgrade+0x7f0/0x7f0 [ 128.163667] ? __fget+0x1ca/0x2f0 [ 128.167100] ? __fget_light+0x166/0x200 [ 128.171058] ? __fdget+0xe/0x10 [ 128.174324] ? sockfd_lookup_light+0x1c/0x150 [ 128.178802] __sys_sendmsg+0xc1/0x140 [ 128.182579] ? SyS_shutdown+0x180/0x180 [ 128.186528] ? __sb_end_write+0xa4/0xd0 [ 128.190490] ? mutex_unlock+0xd/0x10 [ 128.194442] ? do_syscall_64+0x4c/0x5b0 [ 128.198390] ? __sys_sendmsg+0x140/0x140 [ 128.202436] SyS_sendmsg+0xd/0x20 [ 128.205864] do_syscall_64+0x1c7/0x5b0 [ 128.209727] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 128.214557] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 128.219718] RIP: 0033:0x45b399 [ 128.222900] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 128.230589] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 128.238355] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 128.245801] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 128.253055] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 128.260317] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 128.270344] batman_adv: batadv0: Adding interface: vlan1 [ 128.276181] batman_adv: batadv0: The MTU of interface vlan1 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. [ 128.301313] batman_adv: batadv0: Interface activated: vlan1 [ 128.308140] FAULT_INJECTION: forcing a failure. [ 128.308140] name failslab, interval 1, probability 0, space 0, times 0 [ 128.324150] CPU: 0 PID: 8399 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 128.331960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 128.341398] Call Trace: [ 128.343981] dump_stack+0xf7/0x13b [ 128.347516] should_fail.cold.3+0x105/0x14b [ 128.351826] should_failslab+0xba/0xf0 [ 128.355714] kmem_cache_alloc_node+0x287/0x790 [ 128.360463] __alloc_skb+0x92/0x500 [ 128.364080] ? skb_trim+0x160/0x160 [ 128.367689] ? if_nlmsg_size+0x2d9/0x6f0 [ 128.371733] rtmsg_ifinfo_build_skb+0x68/0x120 [ 128.376300] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 128.381297] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 128.386227] rtnetlink_event+0xc2/0x110 [ 128.390183] notifier_call_chain+0xd6/0x150 [ 128.394484] raw_notifier_call_chain+0x11/0x20 [ 128.399045] call_netdevice_notifiers_info+0x4b/0x60 [ 128.404127] __netdev_upper_dev_link+0x18e/0x1f0 [ 128.408856] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 128.413602] netdev_master_upper_dev_link+0x14/0x20 [ 128.418601] batadv_hardif_enable_interface+0x1f4/0xa10 [ 128.423945] batadv_softif_slave_add+0x7f/0xd0 [ 128.428515] do_set_master+0x163/0x1f0 [ 128.432409] do_setlink+0x9dd/0x2c50 [ 128.436131] ? find_held_lock+0x36/0x1d0 [ 128.440186] ? rtnl_register+0x20/0x20 [ 128.444073] ? load_balance+0xb38/0x2190 [ 128.448113] ? lock_downgrade+0x7f0/0x7f0 [ 128.452251] ? lock_pin_lock+0x340/0x340 [ 128.456314] ? __lock_acquire+0x6a4/0x4500 [ 128.460530] ? trace_hardirqs_off+0x10/0x10 [ 128.464833] ? __lock_is_held+0xb5/0x140 [ 128.468874] ? trace_hardirqs_off+0x10/0x10 [ 128.473178] ? trace_hardirqs_off+0x10/0x10 [ 128.477482] rtnl_newlink+0xe0c/0x1390 [ 128.481347] ? rtnl_link_unregister+0x270/0x270 [ 128.485996] ? finish_task_switch+0x178/0x650 [ 128.490476] ? finish_task_switch+0x14d/0x650 [ 128.495053] ? find_held_lock+0x36/0x1d0 [ 128.499095] ? __mutex_lock+0x8b7/0x14c0 [ 128.503130] ? lock_downgrade+0x7f0/0x7f0 [ 128.507261] ? do_raw_spin_unlock+0x16a/0x250 [ 128.511756] rtnetlink_rcv_msg+0x34c/0x9e0 [ 128.515968] ? rtnl_bridge_getlink+0x760/0x760 [ 128.520526] ? find_held_lock+0x36/0x1d0 [ 128.524570] netlink_rcv_skb+0x133/0x370 [ 128.528627] ? rtnl_bridge_getlink+0x760/0x760 [ 128.533185] ? netlink_ack+0xa00/0xa00 [ 128.537051] ? netlink_deliver_tap+0x8e/0x920 [ 128.541523] rtnetlink_rcv+0x10/0x20 [ 128.545235] netlink_unicast+0x40b/0x600 [ 128.549291] ? netlink_attachskb+0x6d0/0x6d0 [ 128.553694] netlink_sendmsg+0x730/0xbd0 [ 128.557741] ? netlink_unicast+0x600/0x600 [ 128.561968] ? selinux_socket_sendmsg+0x31/0x40 [ 128.566620] ? security_socket_sendmsg+0x6a/0xa0 [ 128.571350] ? netlink_unicast+0x600/0x600 [ 128.575563] sock_sendmsg+0xb5/0xf0 [ 128.579168] ___sys_sendmsg+0x625/0x920 [ 128.583121] ? trace_hardirqs_off+0x10/0x10 [ 128.587420] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 128.592150] ? find_held_lock+0x36/0x1d0 [ 128.596189] ? lock_downgrade+0x7f0/0x7f0 [ 128.600327] ? __fget+0x1ca/0x2f0 [ 128.603757] ? __fget_light+0x166/0x200 [ 128.607708] ? __fdget+0xe/0x10 [ 128.610987] ? sockfd_lookup_light+0x1c/0x150 [ 128.615472] __sys_sendmsg+0xc1/0x140 [ 128.619357] ? SyS_shutdown+0x180/0x180 [ 128.623323] ? __sb_end_write+0xa4/0xd0 [ 128.627291] ? mutex_unlock+0xd/0x10 [ 128.631000] ? do_syscall_64+0x4c/0x5b0 [ 128.634965] ? __sys_sendmsg+0x140/0x140 [ 128.639012] SyS_sendmsg+0xd/0x20 [ 128.642449] do_syscall_64+0x1c7/0x5b0 [ 128.646312] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 128.651156] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 128.656430] RIP: 0033:0x45b399 [ 128.659602] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 128.667300] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 128.674566] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 128.682517] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 128.689771] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 128.697024] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 128.717708] batman_adv: batadv0: Adding interface: macvlan0 [ 128.727874] batman_adv: batadv0: The MTU of interface macvlan0 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. [ 128.752829] batman_adv: batadv0: Interface activated: macvlan0 [ 128.761308] FAULT_INJECTION: forcing a failure. [ 128.761308] name failslab, interval 1, probability 0, space 0, times 0 [ 128.773771] CPU: 0 PID: 8404 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 128.781589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 128.790946] Call Trace: [ 128.793531] dump_stack+0xf7/0x13b [ 128.797418] should_fail.cold.3+0x105/0x14b [ 128.801739] should_failslab+0xba/0xf0 [ 128.805648] kmem_cache_alloc_node_trace+0x279/0x780 [ 128.811374] __kmalloc_node_track_caller+0x3c/0x70 [ 128.818909] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 128.823771] __alloc_skb+0xc1/0x500 [ 128.828080] ? skb_trim+0x160/0x160 [ 128.831702] ? if_nlmsg_size+0x2d9/0x6f0 [ 128.836046] rtmsg_ifinfo_build_skb+0x68/0x120 [ 128.840638] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 128.845647] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 128.850592] rtnetlink_event+0xc2/0x110 [ 128.854575] notifier_call_chain+0xd6/0x150 [ 128.858904] raw_notifier_call_chain+0x11/0x20 [ 128.863474] call_netdevice_notifiers_info+0x4b/0x60 [ 128.868569] __netdev_upper_dev_link+0x18e/0x1f0 [ 128.873316] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 128.878056] netdev_master_upper_dev_link+0x14/0x20 [ 128.883154] batadv_hardif_enable_interface+0x1f4/0xa10 [ 128.888762] batadv_softif_slave_add+0x7f/0xd0 [ 128.893476] do_set_master+0x163/0x1f0 [ 128.897447] do_setlink+0x9dd/0x2c50 [ 128.901173] ? __lock_acquire+0x6a4/0x4500 [ 128.905399] ? rtnl_register+0x20/0x20 [ 128.909401] ? trace_hardirqs_on+0x10/0x10 [ 128.914931] ? trace_hardirqs_off+0x10/0x10 [ 128.919280] ? __lock_acquire+0x6a4/0x4500 [ 128.923516] ? trace_hardirqs_off+0x10/0x10 [ 128.927917] ? __lock_is_held+0xb5/0x140 [ 128.932137] ? trace_hardirqs_off+0x10/0x10 [ 128.936547] rtnl_newlink+0xe0c/0x1390 [ 128.940513] ? rtnl_link_unregister+0x270/0x270 [ 128.945783] ? finish_task_switch+0x178/0x650 [ 128.950305] ? finish_task_switch+0x14d/0x650 [ 128.954878] ? find_held_lock+0x36/0x1d0 [ 128.959035] ? __mutex_lock+0x8b7/0x14c0 [ 128.963086] ? lock_downgrade+0x7f0/0x7f0 [ 128.967228] ? do_raw_spin_unlock+0x16a/0x250 [ 128.971744] rtnetlink_rcv_msg+0x34c/0x9e0 [ 128.975989] ? rtnl_bridge_getlink+0x760/0x760 [ 128.981222] ? find_held_lock+0x36/0x1d0 [ 128.985271] netlink_rcv_skb+0x133/0x370 [ 128.989428] ? rtnl_bridge_getlink+0x760/0x760 [ 128.994100] ? netlink_ack+0xa00/0xa00 [ 128.997986] ? netlink_deliver_tap+0x8e/0x920 [ 129.002613] rtnetlink_rcv+0x10/0x20 [ 129.006315] netlink_unicast+0x40b/0x600 [ 129.010362] ? netlink_attachskb+0x6d0/0x6d0 [ 129.014748] netlink_sendmsg+0x730/0xbd0 [ 129.018792] ? netlink_unicast+0x600/0x600 [ 129.023099] ? selinux_socket_sendmsg+0x31/0x40 [ 129.027864] ? security_socket_sendmsg+0x6a/0xa0 [ 129.032612] ? netlink_unicast+0x600/0x600 [ 129.036843] sock_sendmsg+0xb5/0xf0 [ 129.040479] ___sys_sendmsg+0x625/0x920 [ 129.044444] ? trace_hardirqs_off+0x10/0x10 [ 129.048760] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 129.053519] ? find_held_lock+0x36/0x1d0 [ 129.057575] ? lock_downgrade+0x7f0/0x7f0 [ 129.061889] ? __fget+0x1ca/0x2f0 [ 129.065334] ? __fget_light+0x166/0x200 [ 129.069295] ? __fdget+0xe/0x10 [ 129.072554] ? sockfd_lookup_light+0x1c/0x150 [ 129.077032] __sys_sendmsg+0xc1/0x140 [ 129.080814] ? SyS_shutdown+0x180/0x180 [ 129.084835] ? __sb_end_write+0xa4/0xd0 [ 129.088794] ? mutex_unlock+0xd/0x10 [ 129.092487] ? do_syscall_64+0x4c/0x5b0 [ 129.096457] ? __sys_sendmsg+0x140/0x140 [ 129.100513] SyS_sendmsg+0xd/0x20 [ 129.104199] do_syscall_64+0x1c7/0x5b0 [ 129.108072] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 129.112897] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 129.118084] RIP: 0033:0x45b399 [ 129.121259] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 129.128948] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 129.136218] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 129.143488] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 129.150756] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 129.158015] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 129.167520] batman_adv: batadv0: Adding interface: macvlan1 [ 129.173239] batman_adv: batadv0: The MTU of interface macvlan1 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. [ 129.199272] batman_adv: batadv0: Interface activated: macvlan1 [ 129.206242] FAULT_INJECTION: forcing a failure. [ 129.206242] name failslab, interval 1, probability 0, space 0, times 0 [ 129.224306] CPU: 1 PID: 8408 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 129.232118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 129.241515] Call Trace: [ 129.244099] dump_stack+0xf7/0x13b [ 129.247641] should_fail.cold.3+0x105/0x14b [ 129.251982] should_failslab+0xba/0xf0 [ 129.255847] kmem_cache_alloc_node_trace+0x279/0x780 [ 129.260961] __kmalloc_node_track_caller+0x3c/0x70 [ 129.266672] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 129.271404] __alloc_skb+0xc1/0x500 [ 129.275006] ? skb_trim+0x160/0x160 [ 129.278612] ? if_nlmsg_size+0x2d9/0x6f0 [ 129.282664] rtmsg_ifinfo_build_skb+0x68/0x120 [ 129.287223] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 129.292049] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 129.296958] rtnetlink_event+0xc2/0x110 [ 129.300911] notifier_call_chain+0xd6/0x150 [ 129.305214] raw_notifier_call_chain+0x11/0x20 [ 129.309772] call_netdevice_notifiers_info+0x4b/0x60 [ 129.314848] __netdev_upper_dev_link+0x18e/0x1f0 [ 129.319595] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 129.324330] netdev_master_upper_dev_link+0x14/0x20 [ 129.329340] batadv_hardif_enable_interface+0x1f4/0xa10 [ 129.334696] batadv_softif_slave_add+0x7f/0xd0 [ 129.339556] do_set_master+0x163/0x1f0 [ 129.343434] do_setlink+0x9dd/0x2c50 [ 129.347252] ? __lock_acquire+0x6a4/0x4500 [ 129.351480] ? rtnl_register+0x20/0x20 [ 129.355361] ? trace_hardirqs_on+0x10/0x10 [ 129.359833] ? trace_hardirqs_off+0x10/0x10 [ 129.364130] ? __lock_acquire+0x6a4/0x4500 [ 129.368339] ? trace_hardirqs_off+0x10/0x10 [ 129.372721] ? __lock_is_held+0xb5/0x140 [ 129.376834] ? trace_hardirqs_off+0x10/0x10 [ 129.381138] ? __lock_acquire+0x6a4/0x4500 [ 129.385365] rtnl_newlink+0xe0c/0x1390 [ 129.389288] ? rtnl_link_unregister+0x270/0x270 [ 129.394061] ? find_held_lock+0x36/0x1d0 [ 129.398101] ? find_held_lock+0x36/0x1d0 [ 129.402700] ? __mutex_lock+0x8b7/0x14c0 [ 129.406973] ? lock_downgrade+0x7f0/0x7f0 [ 129.411116] ? do_raw_spin_unlock+0x16a/0x250 [ 129.415798] rtnetlink_rcv_msg+0x34c/0x9e0 [ 129.420026] ? rtnl_bridge_getlink+0x760/0x760 [ 129.424657] ? find_held_lock+0x36/0x1d0 [ 129.428763] netlink_rcv_skb+0x133/0x370 [ 129.432815] ? rtnl_bridge_getlink+0x760/0x760 [ 129.437383] ? netlink_ack+0xa00/0xa00 [ 129.441248] ? netlink_deliver_tap+0x8e/0x920 [ 129.445722] rtnetlink_rcv+0x10/0x20 [ 129.449409] netlink_unicast+0x40b/0x600 [ 129.453449] ? netlink_attachskb+0x6d0/0x6d0 [ 129.457923] netlink_sendmsg+0x730/0xbd0 [ 129.461976] ? netlink_unicast+0x600/0x600 [ 129.466289] ? selinux_socket_sendmsg+0x31/0x40 [ 129.470947] ? security_socket_sendmsg+0x6a/0xa0 [ 129.475679] ? netlink_unicast+0x600/0x600 [ 129.479898] sock_sendmsg+0xb5/0xf0 [ 129.483500] ___sys_sendmsg+0x625/0x920 [ 129.487451] ? trace_hardirqs_off+0x10/0x10 [ 129.491749] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 129.496481] ? find_held_lock+0x36/0x1d0 [ 129.500535] ? lock_downgrade+0x7f0/0x7f0 [ 129.504671] ? __fget+0x1ca/0x2f0 [ 129.508172] ? __fget_light+0x166/0x200 [ 129.512267] ? __fdget+0xe/0x10 [ 129.515523] ? sockfd_lookup_light+0x1c/0x150 [ 129.519995] __sys_sendmsg+0xc1/0x140 [ 129.523782] ? SyS_shutdown+0x180/0x180 [ 129.527735] ? __sb_end_write+0xa4/0xd0 [ 129.531696] ? mutex_unlock+0xd/0x10 [ 129.535386] ? do_syscall_64+0x4c/0x5b0 [ 129.539345] ? __sys_sendmsg+0x140/0x140 [ 129.543378] SyS_sendmsg+0xd/0x20 [ 129.546806] do_syscall_64+0x1c7/0x5b0 [ 129.550679] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 129.555500] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 129.560663] RIP: 0033:0x45b399 [ 129.563826] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 129.571509] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 129.578754] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 129.586010] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 129.593277] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 129.600528] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 129.611344] batman_adv: batadv0: Adding interface: macvlan1 [ 129.628553] batman_adv: batadv0: The MTU of interface macvlan1 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. [ 129.653680] batman_adv: batadv0: Interface activated: macvlan1 [ 129.661007] FAULT_INJECTION: forcing a failure. [ 129.661007] name failslab, interval 1, probability 0, space 0, times 0 [ 129.680349] CPU: 1 PID: 8413 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 129.688156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 129.697504] Call Trace: [ 129.700088] dump_stack+0xf7/0x13b [ 129.703628] should_fail.cold.3+0x105/0x14b [ 129.707946] should_failslab+0xba/0xf0 [ 129.711832] kmem_cache_alloc_node_trace+0x279/0x780 [ 129.716952] __kmalloc_node_track_caller+0x3c/0x70 [ 129.721863] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 129.726603] __alloc_skb+0xc1/0x500 [ 129.730213] ? skb_trim+0x160/0x160 [ 129.733815] ? if_nlmsg_size+0x2d9/0x6f0 [ 129.737852] rtmsg_ifinfo_build_skb+0x68/0x120 [ 129.742411] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 129.747312] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 129.752219] rtnetlink_event+0xc2/0x110 [ 129.756169] notifier_call_chain+0xd6/0x150 [ 129.760474] raw_notifier_call_chain+0x11/0x20 [ 129.765106] call_netdevice_notifiers_info+0x4b/0x60 [ 129.770191] __netdev_upper_dev_link+0x18e/0x1f0 [ 129.774926] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 129.779662] netdev_master_upper_dev_link+0x14/0x20 [ 129.784656] batadv_hardif_enable_interface+0x1f4/0xa10 [ 129.790006] batadv_softif_slave_add+0x7f/0xd0 [ 129.794564] do_set_master+0x163/0x1f0 [ 129.798426] do_setlink+0x9dd/0x2c50 [ 129.802121] ? find_held_lock+0x36/0x1d0 [ 129.806166] ? rtnl_register+0x20/0x20 [ 129.810029] ? load_balance+0xb38/0x2190 [ 129.814065] ? lock_downgrade+0x7f0/0x7f0 [ 129.818192] ? lock_pin_lock+0x340/0x340 [ 129.822418] ? __lock_acquire+0x6a4/0x4500 [ 129.826633] ? trace_hardirqs_off+0x10/0x10 [ 129.830936] ? __lock_is_held+0xb5/0x140 [ 129.834971] ? trace_hardirqs_off+0x10/0x10 [ 129.839290] ? trace_hardirqs_off+0x10/0x10 [ 129.843601] rtnl_newlink+0xe0c/0x1390 [ 129.847469] ? rtnl_link_unregister+0x270/0x270 [ 129.852114] ? finish_task_switch+0x178/0x650 [ 129.856592] ? finish_task_switch+0x14d/0x650 [ 129.861159] ? find_held_lock+0x36/0x1d0 [ 129.865228] ? __mutex_lock+0x8b7/0x14c0 [ 129.869263] ? lock_downgrade+0x7f0/0x7f0 [ 129.873415] ? do_raw_spin_unlock+0x16a/0x250 [ 129.877899] rtnetlink_rcv_msg+0x34c/0x9e0 [ 129.882125] ? rtnl_bridge_getlink+0x760/0x760 [ 129.886708] ? find_held_lock+0x36/0x1d0 [ 129.890767] netlink_rcv_skb+0x133/0x370 [ 129.894810] ? rtnl_bridge_getlink+0x760/0x760 [ 129.899386] ? netlink_ack+0xa00/0xa00 [ 129.903251] ? netlink_deliver_tap+0x8e/0x920 [ 129.907726] rtnetlink_rcv+0x10/0x20 [ 129.911420] netlink_unicast+0x40b/0x600 [ 129.915457] ? netlink_attachskb+0x6d0/0x6d0 [ 129.919846] netlink_sendmsg+0x730/0xbd0 [ 129.923887] ? netlink_unicast+0x600/0x600 [ 129.928096] ? selinux_socket_sendmsg+0x31/0x40 [ 129.932741] ? security_socket_sendmsg+0x6a/0xa0 [ 129.937499] ? netlink_unicast+0x600/0x600 [ 129.941735] sock_sendmsg+0xb5/0xf0 [ 129.945347] ___sys_sendmsg+0x625/0x920 [ 129.949317] ? trace_hardirqs_off+0x10/0x10 [ 129.953628] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 129.958359] ? find_held_lock+0x36/0x1d0 [ 129.962397] ? lock_downgrade+0x7f0/0x7f0 [ 129.966527] ? __fget+0x1ca/0x2f0 [ 129.969954] ? __fget_light+0x166/0x200 [ 129.973901] ? __fdget+0xe/0x10 [ 129.977152] ? sockfd_lookup_light+0x1c/0x150 [ 129.981623] __sys_sendmsg+0xc1/0x140 [ 129.985395] ? SyS_shutdown+0x180/0x180 [ 129.989345] ? __sb_end_write+0xa4/0xd0 [ 129.993294] ? mutex_unlock+0xd/0x10 [ 129.996996] ? do_syscall_64+0x4c/0x5b0 [ 130.001015] ? __sys_sendmsg+0x140/0x140 [ 130.005088] SyS_sendmsg+0xd/0x20 [ 130.008547] do_syscall_64+0x1c7/0x5b0 [ 130.012423] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.017245] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 130.022410] RIP: 0033:0x45b399 [ 130.025588] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 130.033275] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 130.040522] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 130.047770] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 130.055019] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 130.062263] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 130.071747] batman_adv: batadv0: Adding interface: veth1_macvtap 2020/06/04 21:06:48 executed programs: 164 [ 130.078198] batman_adv: batadv0: The MTU of interface veth1_macvtap 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. [ 130.103629] batman_adv: batadv0: Interface activated: veth1_macvtap [ 130.111173] FAULT_INJECTION: forcing a failure. [ 130.111173] name failslab, interval 1, probability 0, space 0, times 0 [ 130.136309] CPU: 1 PID: 8416 Comm: syz-executor.3 Not tainted 4.14.183-syzkaller #0 [ 130.147588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.156931] Call Trace: [ 130.159517] dump_stack+0xf7/0x13b [ 130.163091] should_fail.cold.3+0x105/0x14b [ 130.167405] should_failslab+0xba/0xf0 [ 130.171281] kmem_cache_alloc_node_trace+0x279/0x780 [ 130.176365] __kmalloc_node_track_caller+0x3c/0x70 [ 130.181280] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 130.186010] __alloc_skb+0xc1/0x500 [ 130.189655] ? skb_trim+0x160/0x160 [ 130.193256] ? if_nlmsg_size+0x2d9/0x6f0 [ 130.197336] rtmsg_ifinfo_build_skb+0x68/0x120 [ 130.201990] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 130.206962] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 130.211871] rtnetlink_event+0xc2/0x110 [ 130.215823] notifier_call_chain+0xd6/0x150 [ 130.220144] raw_notifier_call_chain+0x11/0x20 [ 130.224705] call_netdevice_notifiers_info+0x4b/0x60 [ 130.230317] __netdev_upper_dev_link+0x18e/0x1f0 [ 130.235046] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 130.239778] netdev_master_upper_dev_link+0x14/0x20 [ 130.244769] batadv_hardif_enable_interface+0x1f4/0xa10 [ 130.250108] batadv_softif_slave_add+0x7f/0xd0 [ 130.254674] do_set_master+0x163/0x1f0 [ 130.258543] do_setlink+0x9dd/0x2c50 [ 130.262250] ? rtnl_register+0x20/0x20 [ 130.266117] ? mark_held_locks+0xc7/0x130 [ 130.270243] ? retint_kernel+0x2d/0x2d [ 130.274112] ? trace_hardirqs_on_caller+0x40c/0x580 [ 130.279115] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 130.283848] ? retint_kernel+0x2d/0x2d [ 130.287733] rtnl_newlink+0xe0c/0x1390 [ 130.291611] ? rtnl_link_unregister+0x270/0x270 [ 130.296264] ? finish_task_switch+0x178/0x650 [ 130.300742] ? finish_task_switch+0x14d/0x650 [ 130.305255] ? find_held_lock+0x36/0x1d0 [ 130.309308] ? __mutex_lock+0x8b7/0x14c0 [ 130.313342] ? lock_downgrade+0x7f0/0x7f0 [ 130.317464] ? do_raw_spin_unlock+0x16a/0x250 [ 130.321946] rtnetlink_rcv_msg+0x34c/0x9e0 [ 130.326154] ? rtnl_bridge_getlink+0x760/0x760 [ 130.330708] ? find_held_lock+0x36/0x1d0 [ 130.334744] netlink_rcv_skb+0x133/0x370 [ 130.338779] ? rtnl_bridge_getlink+0x760/0x760 [ 130.344216] ? netlink_ack+0xa00/0xa00 [ 130.348103] ? netlink_deliver_tap+0x8e/0x920 [ 130.352581] rtnetlink_rcv+0x10/0x20 [ 130.356287] netlink_unicast+0x40b/0x600 [ 130.360341] ? netlink_attachskb+0x6d0/0x6d0 [ 130.364742] netlink_sendmsg+0x730/0xbd0 [ 130.368779] ? netlink_unicast+0x600/0x600 [ 130.373003] ? selinux_socket_sendmsg+0x31/0x40 [ 130.377658] ? security_socket_sendmsg+0x6a/0xa0 [ 130.382394] ? netlink_unicast+0x600/0x600 [ 130.386606] sock_sendmsg+0xb5/0xf0 [ 130.390209] ___sys_sendmsg+0x625/0x920 [ 130.394171] ? trace_hardirqs_off+0x10/0x10 [ 130.398475] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 130.403207] ? find_held_lock+0x36/0x1d0 [ 130.407247] ? lock_downgrade+0x7f0/0x7f0 [ 130.411380] ? __fget+0x1ca/0x2f0 [ 130.414819] ? __fget_light+0x166/0x200 [ 130.418772] ? __fdget+0xe/0x10 [ 130.422274] ? sockfd_lookup_light+0x1c/0x150 [ 130.426851] __sys_sendmsg+0xc1/0x140 [ 130.430703] ? SyS_shutdown+0x180/0x180 [ 130.434758] ? __sb_end_write+0xa4/0xd0 [ 130.438723] ? mutex_unlock+0xd/0x10 [ 130.442423] ? do_syscall_64+0x4c/0x5b0 [ 130.446377] ? __sys_sendmsg+0x140/0x140 [ 130.450571] SyS_sendmsg+0xd/0x20 [ 130.454159] do_syscall_64+0x1c7/0x5b0 [ 130.458065] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.462892] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 130.468058] RIP: 0033:0x45b399 [ 130.471224] RSP: 002b:00007f9eab915c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 130.478906] RAX: ffffffffffffffda RBX: 00007f9eab9166d4 RCX: 000000000045b399 [ 130.486207] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 130.493463] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 130.500797] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 130.508175] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 130.516982] batman_adv: batadv0: Adding interface: geneve1 [ 130.522612] batman_adv: batadv0: The MTU of interface geneve1 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. [ 130.547244] batman_adv: batadv0: Interface activated: geneve1 [ 130.553881] FAULT_INJECTION: forcing a failure. [ 130.553881] name failslab, interval 1, probability 0, space 0, times 0 [ 130.566534] CPU: 1 PID: 8419 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 130.574333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 130.583686] Call Trace: [ 130.586275] dump_stack+0xf7/0x13b [ 130.589814] should_fail.cold.3+0x105/0x14b [ 130.594167] should_failslab+0xba/0xf0 [ 130.598050] kmem_cache_alloc_node_trace+0x279/0x780 [ 130.603157] __kmalloc_node_track_caller+0x3c/0x70 [ 130.608081] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 130.612817] __alloc_skb+0xc1/0x500 [ 130.616587] ? skb_trim+0x160/0x160 [ 130.620202] ? if_nlmsg_size+0x2d9/0x6f0 [ 130.624309] rtmsg_ifinfo_build_skb+0x68/0x120 [ 130.628879] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 130.633719] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 130.638839] rtnetlink_event+0xc2/0x110 [ 130.642832] notifier_call_chain+0xd6/0x150 [ 130.647178] raw_notifier_call_chain+0x11/0x20 [ 130.652152] call_netdevice_notifiers_info+0x4b/0x60 [ 130.657292] __netdev_upper_dev_link+0x18e/0x1f0 [ 130.662033] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 130.666792] netdev_master_upper_dev_link+0x14/0x20 [ 130.672282] batadv_hardif_enable_interface+0x1f4/0xa10 [ 130.677779] batadv_softif_slave_add+0x7f/0xd0 [ 130.682359] do_set_master+0x163/0x1f0 [ 130.686352] do_setlink+0x9dd/0x2c50 [ 130.690063] ? find_held_lock+0x36/0x1d0 [ 130.694118] ? rtnl_register+0x20/0x20 [ 130.697988] ? load_balance+0xb38/0x2190 [ 130.702030] ? lock_downgrade+0x7f0/0x7f0 [ 130.706161] ? lock_pin_lock+0x340/0x340 [ 130.710209] ? __lock_acquire+0x6a4/0x4500 [ 130.714427] ? trace_hardirqs_off+0x10/0x10 [ 130.718732] ? __lock_is_held+0xb5/0x140 [ 130.722888] ? trace_hardirqs_off+0x10/0x10 [ 130.727189] rtnl_newlink+0xe0c/0x1390 [ 130.731055] ? rtnl_link_unregister+0x270/0x270 [ 130.735699] ? finish_task_switch+0x178/0x650 [ 130.740170] ? finish_task_switch+0x14d/0x650 [ 130.744652] ? find_held_lock+0x36/0x1d0 [ 130.748705] ? __mutex_lock+0x8b7/0x14c0 [ 130.752761] ? lock_downgrade+0x7f0/0x7f0 [ 130.756891] ? do_raw_spin_unlock+0x16a/0x250 [ 130.761389] rtnetlink_rcv_msg+0x34c/0x9e0 [ 130.765605] ? rtnl_bridge_getlink+0x760/0x760 [ 130.770172] ? find_held_lock+0x36/0x1d0 [ 130.774226] netlink_rcv_skb+0x133/0x370 [ 130.778260] ? rtnl_bridge_getlink+0x760/0x760 [ 130.782914] ? netlink_ack+0xa00/0xa00 [ 130.786790] ? netlink_deliver_tap+0x8e/0x920 [ 130.791267] rtnetlink_rcv+0x10/0x20 [ 130.794964] netlink_unicast+0x40b/0x600 [ 130.799143] ? netlink_attachskb+0x6d0/0x6d0 [ 130.803538] netlink_sendmsg+0x730/0xbd0 [ 130.807662] ? netlink_unicast+0x600/0x600 [ 130.811871] ? selinux_socket_sendmsg+0x31/0x40 [ 130.816513] ? security_socket_sendmsg+0x6a/0xa0 [ 130.821243] ? netlink_unicast+0x600/0x600 [ 130.825452] sock_sendmsg+0xb5/0xf0 [ 130.829059] ___sys_sendmsg+0x625/0x920 [ 130.833007] ? trace_hardirqs_off+0x10/0x10 [ 130.837304] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 130.842033] ? find_held_lock+0x36/0x1d0 [ 130.846245] ? lock_downgrade+0x7f0/0x7f0 [ 130.850369] ? __fget+0x1ca/0x2f0 [ 130.853811] ? __fget_light+0x166/0x200 [ 130.857770] ? __fdget+0xe/0x10 [ 130.861040] ? sockfd_lookup_light+0x1c/0x150 [ 130.865509] __sys_sendmsg+0xc1/0x140 [ 130.869370] ? SyS_shutdown+0x180/0x180 [ 130.873318] ? __sb_end_write+0xa4/0xd0 [ 130.877272] ? mutex_unlock+0xd/0x10 [ 130.880994] ? do_syscall_64+0x4c/0x5b0 [ 130.884958] ? __sys_sendmsg+0x140/0x140 [ 130.888998] SyS_sendmsg+0xd/0x20 [ 130.892461] do_syscall_64+0x1c7/0x5b0 [ 130.896320] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 130.901228] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 130.906397] RIP: 0033:0x45b399 [ 130.909561] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 130.917265] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 130.924522] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 130.931774] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 130.939016] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 130.946263] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 130.954685] batman_adv: batadv0: Adding interface: macvlan1 [ 130.960463] batman_adv: batadv0: The MTU of interface macvlan1 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. [ 130.985177] batman_adv: batadv0: Interface activated: macvlan1 [ 130.992180] FAULT_INJECTION: forcing a failure. [ 130.992180] name failslab, interval 1, probability 0, space 0, times 0 [ 131.004694] CPU: 1 PID: 8425 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 131.012500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.021846] Call Trace: [ 131.024423] dump_stack+0xf7/0x13b [ 131.027958] should_fail.cold.3+0x105/0x14b [ 131.032277] should_failslab+0xba/0xf0 [ 131.036159] kmem_cache_alloc_node_trace+0x279/0x780 [ 131.041260] __kmalloc_node_track_caller+0x3c/0x70 [ 131.046182] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 131.050934] __alloc_skb+0xc1/0x500 [ 131.054638] ? skb_trim+0x160/0x160 [ 131.058276] rtmsg_fib+0x19d/0x460 [ 131.061806] fib_table_insert+0x7ab/0x16a0 [ 131.066043] ? trace_hardirqs_on+0x10/0x10 [ 131.070259] ? fib_triestat_seq_show+0xd80/0xd80 [ 131.075000] fib_magic.isra.19+0x317/0x4b0 [ 131.079215] ? fib_magic.isra.19+0x317/0x4b0 [ 131.083597] ? nl_fib_input+0xbb0/0xbb0 [ 131.087878] fib_add_ifaddr+0x2a5/0x410 [ 131.091837] fib_netdev_event+0x192/0x300 [ 131.095969] notifier_call_chain+0xd6/0x150 [ 131.100265] raw_notifier_call_chain+0x11/0x20 [ 131.104833] call_netdevice_notifiers_info+0x4b/0x60 [ 131.109913] __dev_notify_flags+0xca/0x210 [ 131.114129] ? dev_change_name+0x8f0/0x8f0 [ 131.118342] ? dev_set_allmulti+0x10/0x10 [ 131.122474] dev_change_flags+0xe6/0x150 [ 131.126510] do_setlink+0x96f/0x2c50 [ 131.130197] ? find_held_lock+0x36/0x1d0 [ 131.134244] ? rtnl_register+0x20/0x20 [ 131.138105] ? load_balance+0xb38/0x2190 [ 131.142146] ? lock_downgrade+0x7f0/0x7f0 [ 131.146279] ? lock_pin_lock+0x340/0x340 [ 131.150328] ? __lock_acquire+0x6a4/0x4500 [ 131.154570] ? trace_hardirqs_off+0x10/0x10 [ 131.158873] ? __lock_is_held+0xb5/0x140 [ 131.162922] ? trace_hardirqs_off+0x10/0x10 [ 131.167222] rtnl_newlink+0xe0c/0x1390 [ 131.171099] ? rtnl_link_unregister+0x270/0x270 [ 131.175747] ? finish_task_switch+0x178/0x650 [ 131.180220] ? finish_task_switch+0x14d/0x650 [ 131.184694] ? find_held_lock+0x36/0x1d0 [ 131.188735] ? __mutex_lock+0x8b7/0x14c0 [ 131.192780] ? lock_downgrade+0x7f0/0x7f0 [ 131.196904] ? do_raw_spin_unlock+0x16a/0x250 [ 131.201402] rtnetlink_rcv_msg+0x34c/0x9e0 [ 131.205626] ? rtnl_bridge_getlink+0x760/0x760 [ 131.210182] ? find_held_lock+0x36/0x1d0 [ 131.214220] netlink_rcv_skb+0x133/0x370 [ 131.218254] ? rtnl_bridge_getlink+0x760/0x760 [ 131.222813] ? netlink_ack+0xa00/0xa00 [ 131.226684] ? netlink_deliver_tap+0x8e/0x920 [ 131.231152] rtnetlink_rcv+0x10/0x20 [ 131.234846] netlink_unicast+0x40b/0x600 [ 131.238889] ? netlink_attachskb+0x6d0/0x6d0 [ 131.243285] netlink_sendmsg+0x730/0xbd0 [ 131.247319] ? netlink_unicast+0x600/0x600 [ 131.251528] ? selinux_socket_sendmsg+0x31/0x40 [ 131.256171] ? security_socket_sendmsg+0x6a/0xa0 [ 131.260912] ? netlink_unicast+0x600/0x600 [ 131.265120] sock_sendmsg+0xb5/0xf0 [ 131.268729] ___sys_sendmsg+0x625/0x920 [ 131.272677] ? trace_hardirqs_off+0x10/0x10 [ 131.276973] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 131.281712] ? find_held_lock+0x36/0x1d0 [ 131.285750] ? lock_downgrade+0x7f0/0x7f0 [ 131.289877] ? __fget+0x1ca/0x2f0 [ 131.293306] ? __fget_light+0x166/0x200 [ 131.297255] ? __fdget+0xe/0x10 [ 131.300521] ? sockfd_lookup_light+0x1c/0x150 [ 131.304990] __sys_sendmsg+0xc1/0x140 [ 131.308762] ? SyS_shutdown+0x180/0x180 [ 131.312738] ? __sb_end_write+0xa4/0xd0 [ 131.316686] ? mutex_unlock+0xd/0x10 [ 131.320380] ? do_syscall_64+0x4c/0x5b0 [ 131.324338] ? __sys_sendmsg+0x140/0x140 [ 131.328372] SyS_sendmsg+0xd/0x20 [ 131.331801] do_syscall_64+0x1c7/0x5b0 [ 131.335670] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 131.340494] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 131.345672] RIP: 0033:0x45b399 [ 131.348900] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 131.356585] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 131.363841] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 131.371152] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 131.378399] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 131.385660] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 131.398459] batman_adv: batadv0: Adding interface: ipvlan0 [ 131.404095] batman_adv: batadv0: The MTU of interface ipvlan0 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. [ 131.429927] batman_adv: batadv0: Interface activated: ipvlan0 [ 131.436711] FAULT_INJECTION: forcing a failure. [ 131.436711] name failslab, interval 1, probability 0, space 0, times 0 [ 131.463451] CPU: 1 PID: 8427 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 131.471266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.480635] Call Trace: [ 131.483221] dump_stack+0xf7/0x13b [ 131.486765] should_fail.cold.3+0x105/0x14b [ 131.491085] should_failslab+0xba/0xf0 [ 131.494950] kmem_cache_alloc_node+0x287/0x790 [ 131.499520] __alloc_skb+0x92/0x500 [ 131.503162] ? skb_trim+0x160/0x160 [ 131.506771] rtmsg_fib+0x19d/0x460 [ 131.510290] fib_table_insert+0x7ab/0x16a0 [ 131.514812] ? trace_hardirqs_on+0x10/0x10 [ 131.519040] ? fib_triestat_seq_show+0xd80/0xd80 [ 131.523788] fib_magic.isra.19+0x317/0x4b0 [ 131.528088] ? fib_magic.isra.19+0x317/0x4b0 [ 131.532470] ? nl_fib_input+0xbb0/0xbb0 [ 131.536426] fib_add_ifaddr+0x2a5/0x410 [ 131.540377] fib_netdev_event+0x192/0x300 [ 131.544519] notifier_call_chain+0xd6/0x150 [ 131.548885] raw_notifier_call_chain+0x11/0x20 [ 131.553449] call_netdevice_notifiers_info+0x4b/0x60 [ 131.558539] __dev_notify_flags+0xca/0x210 [ 131.562943] ? dev_change_name+0x8f0/0x8f0 [ 131.567278] ? dev_set_allmulti+0x10/0x10 [ 131.571411] dev_change_flags+0xe6/0x150 [ 131.575451] do_setlink+0x96f/0x2c50 [ 131.579160] ? find_held_lock+0x36/0x1d0 [ 131.583197] ? rtnl_register+0x20/0x20 [ 131.587059] ? load_balance+0xb38/0x2190 [ 131.591106] ? lock_downgrade+0x7f0/0x7f0 [ 131.595229] ? lock_pin_lock+0x340/0x340 [ 131.599268] ? __lock_acquire+0x6a4/0x4500 [ 131.603477] ? trace_hardirqs_off+0x10/0x10 [ 131.607784] ? __lock_is_held+0xb5/0x140 [ 131.611831] ? trace_hardirqs_off+0x10/0x10 [ 131.616135] ? trace_hardirqs_off+0x10/0x10 [ 131.620507] rtnl_newlink+0xe0c/0x1390 [ 131.624382] ? rtnl_link_unregister+0x270/0x270 [ 131.629043] ? finish_task_switch+0x178/0x650 [ 131.633513] ? finish_task_switch+0x14d/0x650 [ 131.638008] ? find_held_lock+0x36/0x1d0 [ 131.642055] ? __mutex_lock+0x8b7/0x14c0 [ 131.646095] ? lock_downgrade+0x7f0/0x7f0 [ 131.650218] ? do_raw_spin_unlock+0x16a/0x250 [ 131.654699] rtnetlink_rcv_msg+0x34c/0x9e0 [ 131.658910] ? rtnl_bridge_getlink+0x760/0x760 [ 131.663467] ? find_held_lock+0x36/0x1d0 [ 131.667503] netlink_rcv_skb+0x133/0x370 [ 131.671536] ? rtnl_bridge_getlink+0x760/0x760 [ 131.676088] ? netlink_ack+0xa00/0xa00 [ 131.679950] ? netlink_deliver_tap+0x8e/0x920 [ 131.684425] rtnetlink_rcv+0x10/0x20 [ 131.688119] netlink_unicast+0x40b/0x600 [ 131.692153] ? netlink_attachskb+0x6d0/0x6d0 [ 131.696547] netlink_sendmsg+0x730/0xbd0 [ 131.700583] ? netlink_unicast+0x600/0x600 [ 131.704809] ? selinux_socket_sendmsg+0x31/0x40 [ 131.709463] ? security_socket_sendmsg+0x6a/0xa0 [ 131.714191] ? netlink_unicast+0x600/0x600 [ 131.718400] sock_sendmsg+0xb5/0xf0 [ 131.722003] ___sys_sendmsg+0x625/0x920 [ 131.725962] ? trace_hardirqs_off+0x10/0x10 [ 131.730256] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 131.734998] ? find_held_lock+0x36/0x1d0 [ 131.739040] ? lock_downgrade+0x7f0/0x7f0 [ 131.743176] ? __fget+0x1ca/0x2f0 [ 131.746616] ? __fget_light+0x166/0x200 [ 131.750577] ? __fdget+0xe/0x10 [ 131.753834] ? sockfd_lookup_light+0x1c/0x150 [ 131.758391] __sys_sendmsg+0xc1/0x140 [ 131.762166] ? SyS_shutdown+0x180/0x180 [ 131.766127] ? __sb_end_write+0xa4/0xd0 [ 131.770087] ? mutex_unlock+0xd/0x10 [ 131.773857] ? do_syscall_64+0x4c/0x5b0 [ 131.777858] ? __sys_sendmsg+0x140/0x140 [ 131.781947] SyS_sendmsg+0xd/0x20 [ 131.785378] do_syscall_64+0x1c7/0x5b0 [ 131.789241] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 131.794322] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 131.799506] RIP: 0033:0x45b399 [ 131.802667] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 131.810364] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 131.817620] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 131.824863] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 131.832106] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 131.839361] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 131.849539] batman_adv: batadv0: Adding interface: ipvlan1 [ 131.855332] batman_adv: batadv0: The MTU of interface ipvlan1 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. [ 131.880475] batman_adv: batadv0: Interface activated: ipvlan1 [ 131.888733] FAULT_INJECTION: forcing a failure. [ 131.888733] name failslab, interval 1, probability 0, space 0, times 0 [ 131.900156] CPU: 1 PID: 8431 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 131.907953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 131.917307] Call Trace: [ 131.919893] dump_stack+0xf7/0x13b [ 131.923441] should_fail.cold.3+0x105/0x14b [ 131.927762] should_failslab+0xba/0xf0 [ 131.931687] kmem_cache_alloc_node+0x287/0x790 [ 131.936266] __alloc_skb+0x92/0x500 [ 131.939867] ? skb_trim+0x160/0x160 [ 131.943473] rtmsg_fib+0x19d/0x460 [ 131.946991] fib_table_insert+0x7ab/0x16a0 [ 131.951200] ? trace_hardirqs_on+0x10/0x10 [ 131.955620] ? fib_triestat_seq_show+0xd80/0xd80 [ 131.960360] fib_magic.isra.19+0x317/0x4b0 [ 131.964589] ? fib_magic.isra.19+0x317/0x4b0 [ 131.968974] ? nl_fib_input+0xbb0/0xbb0 [ 131.972947] fib_add_ifaddr+0x2a5/0x410 [ 131.976900] fib_netdev_event+0x192/0x300 [ 131.981033] notifier_call_chain+0xd6/0x150 [ 131.985433] raw_notifier_call_chain+0x11/0x20 [ 131.990017] call_netdevice_notifiers_info+0x4b/0x60 [ 131.995099] __dev_notify_flags+0xca/0x210 [ 131.999331] ? dev_change_name+0x8f0/0x8f0 [ 132.003541] ? dev_set_allmulti+0x10/0x10 [ 132.007677] dev_change_flags+0xe6/0x150 [ 132.011740] do_setlink+0x96f/0x2c50 [ 132.015521] ? rtnl_register+0x20/0x20 [ 132.019402] ? trace_hardirqs_off+0x10/0x10 [ 132.023698] ? trace_hardirqs_on+0x10/0x10 [ 132.027909] ? trace_hardirqs_off+0x10/0x10 [ 132.032224] ? find_held_lock+0x36/0x1d0 [ 132.036278] ? find_held_lock+0x36/0x1d0 [ 132.040318] ? free_one_page+0x9c4/0x1050 [ 132.044441] ? lock_downgrade+0x7f0/0x7f0 [ 132.048589] ? trace_hardirqs_off+0xd/0x10 [ 132.052921] ? bad_range+0x121/0x3a0 [ 132.056632] ? __this_cpu_preempt_check+0x13/0x20 [ 132.061476] ? do_raw_spin_unlock+0x16a/0x250 [ 132.065958] rtnl_newlink+0xe0c/0x1390 [ 132.069848] ? rtnl_link_unregister+0x270/0x270 [ 132.074508] ? finish_task_switch+0x448/0x650 [ 132.078997] ? find_held_lock+0x36/0x1d0 [ 132.083046] ? __mutex_lock+0x8b7/0x14c0 [ 132.087153] ? lock_downgrade+0x7f0/0x7f0 [ 132.091282] ? do_raw_spin_unlock+0x16a/0x250 [ 132.095770] rtnetlink_rcv_msg+0x34c/0x9e0 [ 132.099986] ? rtnl_bridge_getlink+0x760/0x760 [ 132.104552] ? find_held_lock+0x36/0x1d0 [ 132.108601] netlink_rcv_skb+0x133/0x370 [ 132.112641] ? rtnl_bridge_getlink+0x760/0x760 [ 132.117199] ? netlink_ack+0xa00/0xa00 [ 132.121159] ? netlink_deliver_tap+0x8e/0x920 [ 132.125643] rtnetlink_rcv+0x10/0x20 [ 132.129332] netlink_unicast+0x40b/0x600 [ 132.133378] ? netlink_attachskb+0x6d0/0x6d0 [ 132.137776] netlink_sendmsg+0x730/0xbd0 [ 132.141819] ? netlink_unicast+0x600/0x600 [ 132.146032] ? selinux_socket_sendmsg+0x31/0x40 [ 132.150676] ? security_socket_sendmsg+0x6a/0xa0 [ 132.155410] ? netlink_unicast+0x600/0x600 [ 132.159626] sock_sendmsg+0xb5/0xf0 [ 132.163237] ___sys_sendmsg+0x625/0x920 [ 132.167206] ? trace_hardirqs_off+0x10/0x10 [ 132.171572] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 132.176433] ? find_held_lock+0x36/0x1d0 [ 132.180672] ? lock_downgrade+0x7f0/0x7f0 [ 132.184933] ? __fget+0x1ca/0x2f0 [ 132.188422] ? __fget_light+0x166/0x200 [ 132.192395] ? __fdget+0xe/0x10 [ 132.195791] ? sockfd_lookup_light+0x1c/0x150 [ 132.200281] __sys_sendmsg+0xc1/0x140 [ 132.204068] ? SyS_shutdown+0x180/0x180 [ 132.208057] ? __sb_end_write+0xa4/0xd0 [ 132.212017] ? mutex_unlock+0xd/0x10 [ 132.215727] ? do_syscall_64+0x4c/0x5b0 [ 132.219684] ? __sys_sendmsg+0x140/0x140 [ 132.223723] SyS_sendmsg+0xd/0x20 [ 132.227316] do_syscall_64+0x1c7/0x5b0 [ 132.231249] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 132.236079] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 132.241266] RIP: 0033:0x45b399 [ 132.244462] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 132.252154] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 132.260800] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 132.268072] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 132.275320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 132.282591] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 132.291993] batman_adv: batadv0: Adding interface: ipvlan1 [ 132.298164] batman_adv: batadv0: The MTU of interface ipvlan1 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. [ 132.327515] batman_adv: batadv0: Interface activated: ipvlan1 [ 132.334254] FAULT_INJECTION: forcing a failure. [ 132.334254] name failslab, interval 1, probability 0, space 0, times 0 [ 132.347195] CPU: 1 PID: 8435 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 132.355004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.364486] Call Trace: [ 132.367080] dump_stack+0xf7/0x13b [ 132.370635] should_fail.cold.3+0x105/0x14b [ 132.374962] should_failslab+0xba/0xf0 [ 132.378855] kmem_cache_alloc_node_trace+0x279/0x780 [ 132.383975] __kmalloc_node_track_caller+0x3c/0x70 [ 132.388923] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 132.393817] __alloc_skb+0xc1/0x500 [ 132.397449] ? skb_trim+0x160/0x160 [ 132.401072] ? if_nlmsg_size+0x2d9/0x6f0 [ 132.405123] rtmsg_ifinfo_build_skb+0x68/0x120 [ 132.410336] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 132.415419] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 132.421083] rtnetlink_event+0xc2/0x110 [ 132.426755] notifier_call_chain+0xd6/0x150 [ 132.431237] raw_notifier_call_chain+0x11/0x20 [ 132.436194] call_netdevice_notifiers_info+0x4b/0x60 [ 132.441370] __netdev_upper_dev_link+0x18e/0x1f0 [ 132.446113] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 132.451097] netdev_master_upper_dev_link+0x14/0x20 [ 132.456228] batadv_hardif_enable_interface+0x1f4/0xa10 [ 132.461574] batadv_softif_slave_add+0x7f/0xd0 [ 132.466158] do_set_master+0x163/0x1f0 [ 132.470024] do_setlink+0x9dd/0x2c50 [ 132.473720] ? find_held_lock+0x36/0x1d0 [ 132.477781] ? rtnl_register+0x20/0x20 [ 132.481651] ? load_balance+0xb38/0x2190 [ 132.485688] ? lock_downgrade+0x7f0/0x7f0 [ 132.489819] ? lock_pin_lock+0x340/0x340 [ 132.493877] ? __lock_acquire+0x6a4/0x4500 [ 132.498091] ? trace_hardirqs_off+0x10/0x10 [ 132.502391] ? __lock_is_held+0xb5/0x140 [ 132.506445] ? trace_hardirqs_off+0x10/0x10 [ 132.510887] rtnl_newlink+0xe0c/0x1390 [ 132.514757] ? rtnl_link_unregister+0x270/0x270 [ 132.519416] ? finish_task_switch+0x178/0x650 [ 132.523902] ? finish_task_switch+0x14d/0x650 [ 132.528381] ? find_held_lock+0x36/0x1d0 [ 132.532516] ? __mutex_lock+0x8b7/0x14c0 [ 132.536564] ? lock_downgrade+0x7f0/0x7f0 [ 132.540704] ? do_raw_spin_unlock+0x16a/0x250 [ 132.545197] rtnetlink_rcv_msg+0x34c/0x9e0 [ 132.549437] ? rtnl_bridge_getlink+0x760/0x760 [ 132.554005] ? find_held_lock+0x36/0x1d0 [ 132.558066] netlink_rcv_skb+0x133/0x370 [ 132.562106] ? rtnl_bridge_getlink+0x760/0x760 [ 132.566695] ? netlink_ack+0xa00/0xa00 [ 132.571447] ? netlink_deliver_tap+0x8e/0x920 [ 132.575922] rtnetlink_rcv+0x10/0x20 [ 132.579621] netlink_unicast+0x40b/0x600 [ 132.583664] ? netlink_attachskb+0x6d0/0x6d0 [ 132.588056] netlink_sendmsg+0x730/0xbd0 [ 132.592112] ? netlink_unicast+0x600/0x600 [ 132.596325] ? selinux_socket_sendmsg+0x31/0x40 [ 132.600971] ? security_socket_sendmsg+0x6a/0xa0 [ 132.605717] ? netlink_unicast+0x600/0x600 [ 132.610036] sock_sendmsg+0xb5/0xf0 [ 132.613655] ___sys_sendmsg+0x625/0x920 [ 132.617719] ? trace_hardirqs_off+0x10/0x10 [ 132.622026] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 132.626759] ? find_held_lock+0x36/0x1d0 [ 132.630896] ? lock_downgrade+0x7f0/0x7f0 [ 132.635022] ? __fget+0x1ca/0x2f0 [ 132.638463] ? __fget_light+0x166/0x200 [ 132.642412] ? __fdget+0xe/0x10 [ 132.645669] ? sockfd_lookup_light+0x1c/0x150 [ 132.650152] __sys_sendmsg+0xc1/0x140 [ 132.653926] ? SyS_shutdown+0x180/0x180 [ 132.657873] ? __sb_end_write+0xa4/0xd0 [ 132.661839] ? mutex_unlock+0xd/0x10 [ 132.665616] ? do_syscall_64+0x4c/0x5b0 [ 132.669563] ? __sys_sendmsg+0x140/0x140 [ 132.673624] SyS_sendmsg+0xd/0x20 [ 132.677057] do_syscall_64+0x1c7/0x5b0 [ 132.680916] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 132.685749] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 132.690917] RIP: 0033:0x45b399 [ 132.694087] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 132.701768] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 132.709012] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 132.716257] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 132.723505] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 132.730754] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 132.739804] batman_adv: batadv0: Adding interface: macvtap0 [ 132.745583] batman_adv: batadv0: The MTU of interface macvtap0 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. [ 132.770343] batman_adv: batadv0: Interface activated: macvtap0 [ 132.778517] FAULT_INJECTION: forcing a failure. [ 132.778517] name failslab, interval 1, probability 0, space 0, times 0 [ 132.794758] CPU: 1 PID: 8445 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 132.802568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.811914] Call Trace: [ 132.814496] dump_stack+0xf7/0x13b [ 132.818218] should_fail.cold.3+0x105/0x14b [ 132.822549] should_failslab+0xba/0xf0 [ 132.826433] kmem_cache_alloc_node+0x287/0x790 [ 132.831013] __alloc_skb+0x92/0x500 [ 132.834630] ? skb_trim+0x160/0x160 [ 132.838261] rtmsg_fib+0x19d/0x460 [ 132.841802] fib_table_insert+0x7ab/0x16a0 [ 132.846032] ? trace_hardirqs_on+0x10/0x10 [ 132.850275] ? fib_triestat_seq_show+0xd80/0xd80 [ 132.855037] fib_magic.isra.19+0x317/0x4b0 [ 132.859266] ? fib_magic.isra.19+0x317/0x4b0 [ 132.863762] ? nl_fib_input+0xbb0/0xbb0 [ 132.867779] fib_add_ifaddr+0x2a5/0x410 [ 132.871750] fib_netdev_event+0x192/0x300 [ 132.875891] notifier_call_chain+0xd6/0x150 [ 132.880192] raw_notifier_call_chain+0x11/0x20 [ 132.884748] call_netdevice_notifiers_info+0x4b/0x60 [ 132.889852] __dev_notify_flags+0xca/0x210 [ 132.894069] ? dev_change_name+0x8f0/0x8f0 [ 132.898283] ? dev_set_allmulti+0x10/0x10 [ 132.902405] ? is_bpf_text_address+0x60/0xe0 [ 132.906790] ? lock_downgrade+0x7f0/0x7f0 [ 132.910911] dev_change_flags+0xe6/0x150 [ 132.914948] do_setlink+0x96f/0x2c50 [ 132.918637] ? rtnl_register+0x20/0x20 [ 132.922510] ? trace_hardirqs_off+0x10/0x10 [ 132.926816] ? trace_hardirqs_on+0x10/0x10 [ 132.931044] ? trace_hardirqs_off+0x10/0x10 [ 132.935598] ? find_held_lock+0x36/0x1d0 [ 132.939634] ? find_held_lock+0x36/0x1d0 [ 132.943671] ? free_one_page+0x9c4/0x1050 [ 132.947791] ? lock_downgrade+0x7f0/0x7f0 [ 132.951909] ? trace_hardirqs_off+0xd/0x10 [ 132.956123] ? bad_range+0x121/0x3a0 [ 132.959812] ? __this_cpu_preempt_check+0x13/0x20 [ 132.964643] ? do_raw_spin_unlock+0x16a/0x250 [ 132.969122] rtnl_newlink+0xe0c/0x1390 [ 132.972985] ? rtnl_link_unregister+0x270/0x270 [ 132.977626] ? finish_task_switch+0x448/0x650 [ 132.982093] ? find_held_lock+0x36/0x1d0 [ 132.986154] ? __mutex_lock+0x8b7/0x14c0 [ 132.990200] ? lock_downgrade+0x7f0/0x7f0 [ 132.994321] ? do_raw_spin_unlock+0x16a/0x250 [ 132.998897] rtnetlink_rcv_msg+0x34c/0x9e0 [ 133.003104] ? rtnl_bridge_getlink+0x760/0x760 [ 133.007664] ? find_held_lock+0x36/0x1d0 [ 133.011699] netlink_rcv_skb+0x133/0x370 [ 133.015740] ? rtnl_bridge_getlink+0x760/0x760 [ 133.020381] ? netlink_ack+0xa00/0xa00 [ 133.024243] ? netlink_deliver_tap+0x8e/0x920 [ 133.028723] rtnetlink_rcv+0x10/0x20 [ 133.032407] netlink_unicast+0x40b/0x600 [ 133.036442] ? netlink_attachskb+0x6d0/0x6d0 [ 133.040833] netlink_sendmsg+0x730/0xbd0 [ 133.044867] ? netlink_unicast+0x600/0x600 [ 133.049175] ? selinux_socket_sendmsg+0x31/0x40 [ 133.053818] ? security_socket_sendmsg+0x6a/0xa0 [ 133.058560] ? netlink_unicast+0x600/0x600 [ 133.062767] sock_sendmsg+0xb5/0xf0 [ 133.066369] ___sys_sendmsg+0x625/0x920 [ 133.070335] ? trace_hardirqs_off+0x10/0x10 [ 133.074715] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 133.079442] ? find_held_lock+0x36/0x1d0 [ 133.083488] ? lock_downgrade+0x7f0/0x7f0 [ 133.087615] ? __fget+0x1ca/0x2f0 [ 133.091041] ? __fget_light+0x166/0x200 [ 133.094995] ? __fdget+0xe/0x10 [ 133.098246] ? sockfd_lookup_light+0x1c/0x150 [ 133.102724] __sys_sendmsg+0xc1/0x140 [ 133.106531] ? SyS_shutdown+0x180/0x180 [ 133.110488] ? __sb_end_write+0xa4/0xd0 [ 133.114432] ? mutex_unlock+0xd/0x10 [ 133.118122] ? do_syscall_64+0x4c/0x5b0 [ 133.122066] ? __sys_sendmsg+0x140/0x140 [ 133.126098] SyS_sendmsg+0xd/0x20 [ 133.129534] do_syscall_64+0x1c7/0x5b0 [ 133.133400] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 133.138218] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 133.143388] RIP: 0033:0x45b399 [ 133.146556] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 133.154235] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 133.161479] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 133.168731] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 133.175972] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 133.183213] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 133.194258] batman_adv: batadv0: Adding interface: ipvlan1 [ 133.200887] batman_adv: batadv0: The MTU of interface ipvlan1 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. [ 133.225840] batman_adv: batadv0: Interface activated: ipvlan1 [ 133.232905] FAULT_INJECTION: forcing a failure. [ 133.232905] name failslab, interval 1, probability 0, space 0, times 0 [ 133.245588] CPU: 1 PID: 8447 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 133.253391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.262864] Call Trace: [ 133.265624] dump_stack+0xf7/0x13b [ 133.269373] should_fail.cold.3+0x105/0x14b [ 133.273711] should_failslab+0xba/0xf0 [ 133.277601] kmem_cache_alloc_node_trace+0x279/0x780 [ 133.282902] __kmalloc_node_track_caller+0x3c/0x70 [ 133.287860] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 133.292599] __alloc_skb+0xc1/0x500 [ 133.296228] ? skb_trim+0x160/0x160 [ 133.299833] ? if_nlmsg_size+0x2d9/0x6f0 [ 133.303870] rtmsg_ifinfo_build_skb+0x68/0x120 [ 133.308951] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 133.313892] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 133.318805] rtnetlink_event+0xc2/0x110 [ 133.322759] notifier_call_chain+0xd6/0x150 [ 133.327076] raw_notifier_call_chain+0x11/0x20 [ 133.331661] call_netdevice_notifiers_info+0x4b/0x60 [ 133.336895] __netdev_upper_dev_link+0x18e/0x1f0 [ 133.341737] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 133.346598] netdev_master_upper_dev_link+0x14/0x20 [ 133.351598] batadv_hardif_enable_interface+0x1f4/0xa10 [ 133.356963] batadv_softif_slave_add+0x7f/0xd0 [ 133.361538] do_set_master+0x163/0x1f0 [ 133.365411] do_setlink+0x9dd/0x2c50 [ 133.369104] ? find_held_lock+0x36/0x1d0 [ 133.373150] ? rtnl_register+0x20/0x20 [ 133.377026] ? load_balance+0xb38/0x2190 [ 133.381173] ? lock_downgrade+0x7f0/0x7f0 [ 133.385297] ? lock_pin_lock+0x340/0x340 [ 133.389347] ? __lock_acquire+0x6a4/0x4500 [ 133.393594] ? trace_hardirqs_off+0x10/0x10 [ 133.397904] ? __lock_is_held+0xb5/0x140 [ 133.401941] ? trace_hardirqs_off+0x10/0x10 [ 133.406259] ? __lock_acquire+0x6a4/0x4500 [ 133.410473] rtnl_newlink+0xe0c/0x1390 [ 133.415828] ? rtnl_link_unregister+0x270/0x270 [ 133.420480] ? find_held_lock+0x36/0x1d0 [ 133.424515] ? find_held_lock+0x36/0x1d0 [ 133.428568] ? __mutex_lock+0x8b7/0x14c0 [ 133.432778] ? lock_downgrade+0x7f0/0x7f0 [ 133.436923] ? do_raw_spin_unlock+0x16a/0x250 [ 133.442020] rtnetlink_rcv_msg+0x34c/0x9e0 [ 133.446230] ? rtnl_bridge_getlink+0x760/0x760 [ 133.450788] ? find_held_lock+0x36/0x1d0 [ 133.454837] netlink_rcv_skb+0x133/0x370 [ 133.459002] ? rtnl_bridge_getlink+0x760/0x760 [ 133.463570] ? netlink_ack+0xa00/0xa00 [ 133.467444] ? netlink_deliver_tap+0x8e/0x920 [ 133.471957] rtnetlink_rcv+0x10/0x20 [ 133.475656] netlink_unicast+0x40b/0x600 [ 133.479699] ? netlink_attachskb+0x6d0/0x6d0 [ 133.484085] netlink_sendmsg+0x730/0xbd0 [ 133.488125] ? netlink_unicast+0x600/0x600 [ 133.492411] ? selinux_socket_sendmsg+0x31/0x40 [ 133.497065] ? security_socket_sendmsg+0x6a/0xa0 [ 133.501807] ? netlink_unicast+0x600/0x600 [ 133.506023] sock_sendmsg+0xb5/0xf0 [ 133.509652] ___sys_sendmsg+0x625/0x920 [ 133.513600] ? trace_hardirqs_off+0x10/0x10 [ 133.517902] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 133.522647] ? find_held_lock+0x36/0x1d0 [ 133.527083] ? lock_downgrade+0x7f0/0x7f0 [ 133.531758] ? __fget+0x1ca/0x2f0 [ 133.535196] ? __fget_light+0x166/0x200 [ 133.539155] ? __fdget+0xe/0x10 [ 133.542434] ? sockfd_lookup_light+0x1c/0x150 [ 133.546917] __sys_sendmsg+0xc1/0x140 [ 133.550708] ? SyS_shutdown+0x180/0x180 [ 133.554674] ? __sb_end_write+0xa4/0xd0 [ 133.558637] ? mutex_unlock+0xd/0x10 [ 133.562344] ? do_syscall_64+0x4c/0x5b0 [ 133.566339] ? __sys_sendmsg+0x140/0x140 [ 133.570485] SyS_sendmsg+0xd/0x20 [ 133.573926] do_syscall_64+0x1c7/0x5b0 [ 133.577795] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 133.582628] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 133.587824] RIP: 0033:0x45b399 [ 133.591004] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 133.598882] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 133.606144] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 133.613411] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 133.620661] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 133.628232] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 133.637320] batman_adv: batadv0: Adding interface: veth1_macvtap [ 133.643561] batman_adv: batadv0: The MTU of interface veth1_macvtap 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. [ 133.668887] batman_adv: batadv0: Interface activated: veth1_macvtap [ 133.676297] FAULT_INJECTION: forcing a failure. [ 133.676297] name failslab, interval 1, probability 0, space 0, times 0 [ 133.702358] CPU: 0 PID: 8453 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 133.710176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 133.719623] Call Trace: [ 133.722210] dump_stack+0xf7/0x13b [ 133.725749] should_fail.cold.3+0x105/0x14b [ 133.730068] should_failslab+0xba/0xf0 [ 133.733950] kmem_cache_alloc_node_trace+0x279/0x780 [ 133.739060] __kmalloc_node_track_caller+0x3c/0x70 [ 133.744052] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 133.748800] __alloc_skb+0xc1/0x500 [ 133.752413] ? skb_trim+0x160/0x160 [ 133.756148] ? if_nlmsg_size+0x2d9/0x6f0 [ 133.760363] rtmsg_ifinfo_build_skb+0x68/0x120 [ 133.765106] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 133.770892] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 133.775798] rtnetlink_event+0xc2/0x110 [ 133.779750] notifier_call_chain+0xd6/0x150 [ 133.784052] raw_notifier_call_chain+0x11/0x20 [ 133.788619] call_netdevice_notifiers_info+0x4b/0x60 [ 133.793705] __netdev_upper_dev_link+0x18e/0x1f0 [ 133.798437] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 133.803179] netdev_master_upper_dev_link+0x14/0x20 [ 133.808188] batadv_hardif_enable_interface+0x1f4/0xa10 [ 133.813623] batadv_softif_slave_add+0x7f/0xd0 [ 133.818187] do_set_master+0x163/0x1f0 [ 133.822137] do_setlink+0x9dd/0x2c50 [ 133.826017] ? rtnl_register+0x20/0x20 [ 133.829909] ? __lock_acquire+0x6a4/0x4500 [ 133.834161] ? trace_hardirqs_off+0x10/0x10 [ 133.838471] ? trace_hardirqs_off+0x10/0x10 [ 133.842781] rtnl_newlink+0xe0c/0x1390 [ 133.846677] ? rtnl_link_unregister+0x270/0x270 [ 133.851327] ? finish_task_switch+0x178/0x650 [ 133.855796] ? finish_task_switch+0x14d/0x650 [ 133.860270] ? find_held_lock+0x36/0x1d0 [ 133.864310] ? __mutex_lock+0x8b7/0x14c0 [ 133.868353] ? lock_downgrade+0x7f0/0x7f0 [ 133.872494] ? do_raw_spin_unlock+0x16a/0x250 [ 133.877161] rtnetlink_rcv_msg+0x34c/0x9e0 [ 133.881530] ? rtnl_bridge_getlink+0x760/0x760 [ 133.886109] ? find_held_lock+0x36/0x1d0 [ 133.890172] netlink_rcv_skb+0x133/0x370 [ 133.894219] ? rtnl_bridge_getlink+0x760/0x760 [ 133.898779] ? netlink_ack+0xa00/0xa00 [ 133.902654] ? netlink_deliver_tap+0x8e/0x920 [ 133.907155] rtnetlink_rcv+0x10/0x20 [ 133.910937] netlink_unicast+0x40b/0x600 [ 133.915120] ? netlink_attachskb+0x6d0/0x6d0 [ 133.919510] netlink_sendmsg+0x730/0xbd0 [ 133.923600] ? netlink_unicast+0x600/0x600 [ 133.927820] ? selinux_socket_sendmsg+0x31/0x40 [ 133.932471] ? security_socket_sendmsg+0x6a/0xa0 [ 133.937201] ? netlink_unicast+0x600/0x600 [ 133.941916] sock_sendmsg+0xb5/0xf0 [ 133.945534] ___sys_sendmsg+0x625/0x920 [ 133.949501] ? trace_hardirqs_off+0x10/0x10 [ 133.953808] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 133.958543] ? find_held_lock+0x36/0x1d0 [ 133.962669] ? lock_downgrade+0x7f0/0x7f0 [ 133.966804] ? __fget+0x1ca/0x2f0 [ 133.971787] ? __fget_light+0x166/0x200 [ 133.975734] ? __fdget+0xe/0x10 [ 133.979111] ? sockfd_lookup_light+0x1c/0x150 [ 133.983585] __sys_sendmsg+0xc1/0x140 [ 133.987373] ? SyS_shutdown+0x180/0x180 [ 133.991454] ? __sb_end_write+0xa4/0xd0 [ 133.995423] ? mutex_unlock+0xd/0x10 [ 133.999180] ? do_syscall_64+0x4c/0x5b0 [ 134.003130] ? __sys_sendmsg+0x140/0x140 [ 134.007175] SyS_sendmsg+0xd/0x20 [ 134.010679] do_syscall_64+0x1c7/0x5b0 [ 134.014543] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 134.019429] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 134.024594] RIP: 0033:0x45b399 [ 134.027763] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 134.035454] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 134.042697] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 134.049944] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 134.057208] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 134.064453] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 134.076018] batman_adv: batadv0: Adding interface: veth0_macvtap [ 134.082265] batman_adv: batadv0: The MTU of interface veth0_macvtap 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. [ 134.107852] batman_adv: batadv0: Interface activated: veth0_macvtap [ 134.115045] FAULT_INJECTION: forcing a failure. [ 134.115045] name failslab, interval 1, probability 0, space 0, times 0 [ 134.128744] CPU: 0 PID: 8457 Comm: syz-executor.4 Not tainted 4.14.183-syzkaller #0 [ 134.136551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 134.145898] Call Trace: [ 134.148479] dump_stack+0xf7/0x13b [ 134.152017] should_fail.cold.3+0x105/0x14b [ 134.156336] should_failslab+0xba/0xf0 [ 134.160214] kmem_cache_alloc_node_trace+0x279/0x780 [ 134.165316] __kmalloc_node_track_caller+0x3c/0x70 [ 134.170236] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 134.174981] __alloc_skb+0xc1/0x500 [ 134.178591] ? skb_trim+0x160/0x160 [ 134.182212] ? if_nlmsg_size+0x2d9/0x6f0 [ 134.186261] rtmsg_ifinfo_build_skb+0x68/0x120 [ 134.190837] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 134.195657] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 134.200562] rtnetlink_event+0xc2/0x110 [ 134.204529] notifier_call_chain+0xd6/0x150 [ 134.208825] raw_notifier_call_chain+0x11/0x20 [ 134.213386] call_netdevice_notifiers_info+0x4b/0x60 [ 134.218473] __netdev_upper_dev_link+0x18e/0x1f0 [ 134.223212] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 134.227955] netdev_master_upper_dev_link+0x14/0x20 [ 134.232953] batadv_hardif_enable_interface+0x1f4/0xa10 [ 134.238301] batadv_softif_slave_add+0x7f/0xd0 [ 134.242865] do_set_master+0x163/0x1f0 [ 134.246811] do_setlink+0x9dd/0x2c50 [ 134.250501] ? find_held_lock+0x36/0x1d0 [ 134.254536] ? rtnl_register+0x20/0x20 [ 134.258440] ? load_balance+0xb38/0x2190 [ 134.262488] ? lock_downgrade+0x7f0/0x7f0 [ 134.266610] ? lock_pin_lock+0x340/0x340 [ 134.270651] ? __lock_acquire+0x6a4/0x4500 [ 134.274859] ? trace_hardirqs_off+0x10/0x10 [ 134.279165] ? __lock_is_held+0xb5/0x140 [ 134.283310] ? trace_hardirqs_off+0x10/0x10 [ 134.287630] rtnl_newlink+0xe0c/0x1390 [ 134.291497] ? rtnl_link_unregister+0x270/0x270 [ 134.296144] ? finish_task_switch+0x178/0x650 [ 134.300623] ? finish_task_switch+0x14d/0x650 [ 134.305106] ? find_held_lock+0x36/0x1d0 [ 134.309144] ? __mutex_lock+0x8b7/0x14c0 [ 134.313180] ? lock_downgrade+0x7f0/0x7f0 [ 134.317309] ? do_raw_spin_unlock+0x16a/0x250 [ 134.321824] rtnetlink_rcv_msg+0x34c/0x9e0 [ 134.326049] ? rtnl_bridge_getlink+0x760/0x760 [ 134.330608] ? find_held_lock+0x36/0x1d0 [ 134.334653] netlink_rcv_skb+0x133/0x370 [ 134.338694] ? rtnl_bridge_getlink+0x760/0x760 [ 134.343259] ? netlink_ack+0xa00/0xa00 [ 134.347142] ? netlink_deliver_tap+0x8e/0x920 [ 134.351640] rtnetlink_rcv+0x10/0x20 [ 134.355328] netlink_unicast+0x40b/0x600 [ 134.359377] ? netlink_attachskb+0x6d0/0x6d0 [ 134.363767] netlink_sendmsg+0x730/0xbd0 [ 134.367804] ? netlink_unicast+0x600/0x600 [ 134.372101] ? selinux_socket_sendmsg+0x31/0x40 [ 134.376759] ? security_socket_sendmsg+0x6a/0xa0 [ 134.381501] ? netlink_unicast+0x600/0x600 [ 134.385718] sock_sendmsg+0xb5/0xf0 [ 134.389400] ___sys_sendmsg+0x625/0x920 [ 134.393418] ? trace_hardirqs_off+0x10/0x10 [ 134.397731] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 134.402557] ? find_held_lock+0x36/0x1d0 [ 134.406597] ? lock_downgrade+0x7f0/0x7f0 [ 134.410734] ? __fget+0x1ca/0x2f0 [ 134.414285] ? __fget_light+0x166/0x200 [ 134.418242] ? __fdget+0xe/0x10 [ 134.421591] ? sockfd_lookup_light+0x1c/0x150 [ 134.426152] __sys_sendmsg+0xc1/0x140 [ 134.429941] ? SyS_shutdown+0x180/0x180 [ 134.433901] ? __sb_end_write+0xa4/0xd0 [ 134.437868] ? mutex_unlock+0xd/0x10 [ 134.441575] ? do_syscall_64+0x4c/0x5b0 [ 134.445699] ? __sys_sendmsg+0x140/0x140 [ 134.449835] SyS_sendmsg+0xd/0x20 [ 134.453267] do_syscall_64+0x1c7/0x5b0 [ 134.457140] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 134.462042] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 134.467222] RIP: 0033:0x45b399 [ 134.470385] RSP: 002b:00007f9d30af8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 134.478082] RAX: ffffffffffffffda RBX: 00007f9d30af96d4 RCX: 000000000045b399 [ 134.485421] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 134.492685] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 134.499936] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 134.507202] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 134.517035] batman_adv: batadv0: Adding interface: veth0_macvtap [ 134.523369] batman_adv: batadv0: The MTU of interface veth0_macvtap 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. [ 134.548715] batman_adv: batadv0: Interface activated: veth0_macvtap [ 134.557450] FAULT_INJECTION: forcing a failure. [ 134.557450] name failslab, interval 1, probability 0, space 0, times 0 [ 134.581890] CPU: 1 PID: 8461 Comm: syz-executor.2 Not tainted 4.14.183-syzkaller #0 [ 134.589706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 134.599060] Call Trace: [ 134.601644] dump_stack+0xf7/0x13b [ 134.605191] should_fail.cold.3+0x105/0x14b [ 134.609512] should_failslab+0xba/0xf0 [ 134.613397] kmem_cache_alloc_node_trace+0x279/0x780 [ 134.618506] __kmalloc_node_track_caller+0x3c/0x70 [ 134.623434] __kmalloc_reserve.isra.38+0x2c/0xc0 [ 134.628275] __alloc_skb+0xc1/0x500 [ 134.632017] ? skb_trim+0x160/0x160 [ 134.635627] ? if_nlmsg_size+0x2d9/0x6f0 [ 134.639814] rtmsg_ifinfo_build_skb+0x68/0x120 [ 134.644384] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 134.649226] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 134.654222] rtnetlink_event+0xc2/0x110 [ 134.658204] notifier_call_chain+0xd6/0x150 [ 134.662503] raw_notifier_call_chain+0x11/0x20 [ 134.667062] call_netdevice_notifiers_info+0x4b/0x60 [ 134.672146] __netdev_upper_dev_link+0x18e/0x1f0 [ 134.676890] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 134.681622] netdev_master_upper_dev_link+0x14/0x20 [ 134.686622] batadv_hardif_enable_interface+0x1f4/0xa10 [ 134.691968] batadv_softif_slave_add+0x7f/0xd0 [ 134.697080] do_set_master+0x163/0x1f0 [ 134.700947] do_setlink+0x9dd/0x2c50 [ 134.704646] ? rtnl_register+0x20/0x20 [ 134.708509] ? trace_hardirqs_off+0x10/0x10 [ 134.712806] ? trace_hardirqs_on+0x10/0x10 [ 134.717013] ? trace_hardirqs_off+0x10/0x10 [ 134.721315] ? find_held_lock+0x36/0x1d0 [ 134.725444] ? find_held_lock+0x36/0x1d0 [ 134.729543] ? free_one_page+0x9c4/0x1050 [ 134.733670] ? lock_downgrade+0x7f0/0x7f0 [ 134.737801] ? trace_hardirqs_off+0xd/0x10 [ 134.742032] ? bad_range+0x121/0x3a0 [ 134.745733] ? __this_cpu_preempt_check+0x13/0x20 [ 134.750550] ? do_raw_spin_unlock+0x16a/0x250 [ 134.755098] rtnl_newlink+0xe0c/0x1390 [ 134.758990] ? rtnl_link_unregister+0x270/0x270 [ 134.763645] ? finish_task_switch+0x448/0x650 [ 134.768119] ? find_held_lock+0x36/0x1d0 [ 134.772167] ? __mutex_lock+0x8b7/0x14c0 [ 134.776211] ? lock_downgrade+0x7f0/0x7f0 [ 134.780355] ? do_raw_spin_unlock+0x16a/0x250 [ 134.784839] rtnetlink_rcv_msg+0x34c/0x9e0 [ 134.789050] ? rtnl_bridge_getlink+0x760/0x760 [ 134.793608] ? find_held_lock+0x36/0x1d0 [ 134.797653] netlink_rcv_skb+0x133/0x370 [ 134.801699] ? rtnl_bridge_getlink+0x760/0x760 [ 134.806254] ? netlink_ack+0xa00/0xa00 [ 134.810136] ? netlink_deliver_tap+0x8e/0x920 [ 134.814626] rtnetlink_rcv+0x10/0x20 [ 134.818333] netlink_unicast+0x40b/0x600 [ 134.822368] ? netlink_attachskb+0x6d0/0x6d0 [ 134.826762] netlink_sendmsg+0x730/0xbd0 [ 134.830798] ? netlink_unicast+0x600/0x600 [ 134.835012] ? selinux_socket_sendmsg+0x31/0x40 [ 134.839676] ? security_socket_sendmsg+0x6a/0xa0 [ 134.844409] ? netlink_unicast+0x600/0x600 [ 134.848620] sock_sendmsg+0xb5/0xf0 [ 134.852223] ___sys_sendmsg+0x625/0x920 [ 134.856176] ? trace_hardirqs_off+0x10/0x10 [ 134.860483] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 134.865305] ? find_held_lock+0x36/0x1d0 [ 134.869341] ? lock_downgrade+0x7f0/0x7f0 [ 134.873470] ? __fget+0x1ca/0x2f0 [ 134.876899] ? __fget_light+0x166/0x200 [ 134.880890] ? __fdget+0xe/0x10 [ 134.884142] ? sockfd_lookup_light+0x1c/0x150 [ 134.888618] __sys_sendmsg+0xc1/0x140 [ 134.892405] ? SyS_shutdown+0x180/0x180 [ 134.896365] ? __sb_end_write+0xa4/0xd0 [ 134.900317] ? mutex_unlock+0xd/0x10 [ 134.904021] ? do_syscall_64+0x4c/0x5b0 [ 134.907970] ? __sys_sendmsg+0x140/0x140 [ 134.912002] SyS_sendmsg+0xd/0x20 [ 134.915429] do_syscall_64+0x1c7/0x5b0 [ 134.919297] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 134.924133] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 134.929335] RIP: 0033:0x45b399 [ 134.932499] RSP: 002b:00007fd7ed6d1c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 134.940188] RAX: ffffffffffffffda RBX: 00007fd7ed6d26d4 RCX: 000000000045b399 [ 134.947439] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 134.954682] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 134.962546] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 134.969898] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 134.980388] batman_adv: batadv0: Adding interface: geneve0 [ 134.986086] batman_adv: batadv0: The MTU of interface geneve0 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. [ 135.011491] batman_adv: batadv0: Interface activated: geneve0 [ 135.018688] FAULT_INJECTION: forcing a failure. [ 135.018688] name failslab, interval 1, probability 0, space 0, times 0 [ 135.054341] CPU: 0 PID: 8469 Comm: syz-executor.5 Not tainted 4.14.183-syzkaller #0 [ 135.062157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 135.071505] Call Trace: [ 135.074091] dump_stack+0xf7/0x13b [ 135.077631] should_fail.cold.3+0x105/0x14b [ 135.081947] should_failslab+0xba/0xf0 [ 135.085917] kmem_cache_alloc+0x2cf/0x790 [ 135.090066] ? memcpy+0x45/0x50 [ 135.093321] ? kstrdup+0x42/0x60 [ 135.096669] __kernfs_new_node+0x63/0x470 [ 135.100812] ? lock_downgrade+0x7f0/0x7f0 [ 135.104945] kernfs_new_node+0x5e/0xe0 [ 135.108813] kernfs_create_link+0x25/0x130 [ 135.113209] sysfs_do_create_link_sd.isra.2+0x7d/0xf0 [ 135.118388] sysfs_create_link+0x43/0xb0 [ 135.122431] netdev_adjacent_sysfs_add+0x94/0xb0 [ 135.127163] ? napi_disable+0x80/0x80 [ 135.130943] __netdev_adjacent_dev_insert+0x46d/0x7b0 [ 135.136130] __netdev_upper_dev_link+0x174/0x1f0 [ 135.140867] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 135.145598] netdev_master_upper_dev_link+0x14/0x20 [ 135.150604] batadv_hardif_enable_interface+0x1f4/0xa10 [ 135.155945] batadv_softif_slave_add+0x7f/0xd0 [ 135.160503] do_set_master+0x163/0x1f0 [ 135.164369] do_setlink+0x9dd/0x2c50 [ 135.168058] ? find_held_lock+0x36/0x1d0 [ 135.172095] ? rtnl_register+0x20/0x20 [ 135.175955] ? load_balance+0xb38/0x2190 [ 135.180001] ? lock_downgrade+0x7f0/0x7f0 [ 135.184143] ? lock_pin_lock+0x340/0x340 [ 135.188198] ? __lock_acquire+0x6a4/0x4500 [ 135.192424] ? trace_hardirqs_off+0x10/0x10 [ 135.196736] ? __lock_is_held+0xb5/0x140 [ 135.200792] ? trace_hardirqs_off+0x10/0x10 [ 135.205113] rtnl_newlink+0xe0c/0x1390 [ 135.209004] ? rtnl_link_unregister+0x270/0x270 [ 135.213662] ? finish_task_switch+0x178/0x650 [ 135.218138] ? finish_task_switch+0x14d/0x650 [ 135.222700] ? find_held_lock+0x36/0x1d0 [ 135.226750] ? __mutex_lock+0x8b7/0x14c0 [ 135.230793] ? lock_downgrade+0x7f0/0x7f0 [ 135.237434] ? do_raw_spin_unlock+0x16a/0x250 [ 135.241918] rtnetlink_rcv_msg+0x34c/0x9e0 [ 135.246141] ? rtnl_bridge_getlink+0x760/0x760 [ 135.250718] ? find_held_lock+0x36/0x1d0 [ 135.254759] netlink_rcv_skb+0x133/0x370 [ 135.258803] ? rtnl_bridge_getlink+0x760/0x760 [ 135.263370] ? netlink_ack+0xa00/0xa00 [ 135.267241] ? netlink_deliver_tap+0x8e/0x920 [ 135.271736] rtnetlink_rcv+0x10/0x20 [ 135.275519] netlink_unicast+0x40b/0x600 [ 135.279561] ? netlink_attachskb+0x6d0/0x6d0 [ 135.283944] netlink_sendmsg+0x730/0xbd0 [ 135.287986] ? netlink_unicast+0x600/0x600 [ 135.292206] ? selinux_socket_sendmsg+0x31/0x40 [ 135.296849] ? security_socket_sendmsg+0x6a/0xa0 [ 135.303422] ? netlink_unicast+0x600/0x600 [ 135.307640] sock_sendmsg+0xb5/0xf0 [ 135.311262] ___sys_sendmsg+0x625/0x920 [ 135.315213] ? trace_hardirqs_off+0x10/0x10 [ 135.319512] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 135.324251] ? find_held_lock+0x36/0x1d0 [ 135.328421] ? lock_downgrade+0x7f0/0x7f0 [ 135.332629] ? __fget+0x1ca/0x2f0 [ 135.336107] ? __fget_light+0x166/0x200 [ 135.340058] ? __fdget+0xe/0x10 [ 135.343314] ? sockfd_lookup_light+0x1c/0x150 [ 135.347791] __sys_sendmsg+0xc1/0x140 [ 135.351631] ? SyS_shutdown+0x180/0x180 [ 135.355579] ? __sb_end_write+0xa4/0xd0 [ 135.359536] ? mutex_unlock+0xd/0x10 [ 135.363290] ? do_syscall_64+0x4c/0x5b0 [ 135.369246] ? __sys_sendmsg+0x140/0x140 [ 135.373379] SyS_sendmsg+0xd/0x20 [ 135.376810] do_syscall_64+0x1c7/0x5b0 [ 135.380889] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 135.385712] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 135.390886] RIP: 0033:0x45b399 [ 135.394108] RSP: 002b:00007fb61096cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 135.401800] RAX: ffffffffffffffda RBX: 00007fb61096d6d4 RCX: 000000000045b399 [ 135.409059] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 135.417057] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 135.424530] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 135.431788] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 135.442660] FAULT_INJECTION: forcing a failure. [ 135.442660] name failslab, interval 1, probability 0, space 0, times 0 2020/06/04 21:06:54 executed programs: 178 [ 135.453946] CPU: 0 PID: 8472 Comm: syz-executor.0 Not tainted 4.14.183-syzkaller #0 [ 135.461752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 135.471100] Call Trace: [ 135.473688] dump_stack+0xf7/0x13b [ 135.477228] should_fail.cold.3+0x105/0x14b [ 135.481550] should_failslab+0xba/0xf0 [ 135.485521] kmem_cache_alloc_node+0x287/0x790 [ 135.490107] __alloc_skb+0x92/0x500 [ 135.493729] ? skb_trim+0x160/0x160 [ 135.497349] ? if_nlmsg_size+0x2d9/0x6f0 [ 135.501420] rtmsg_ifinfo_build_skb+0x68/0x120 [ 135.506007] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 135.510848] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 135.515770] rtnetlink_event+0xc2/0x110 [ 135.520260] notifier_call_chain+0xd6/0x150 [ 135.524765] raw_notifier_call_chain+0x11/0x20 [ 135.529461] call_netdevice_notifiers_info+0x4b/0x60 [ 135.534568] __netdev_upper_dev_link+0x18e/0x1f0 [ 135.539389] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 135.544123] netdev_master_upper_dev_link+0x14/0x20 [ 135.549126] batadv_hardif_enable_interface+0x1f4/0xa10 [ 135.554487] batadv_softif_slave_add+0x7f/0xd0 [ 135.559063] do_set_master+0x163/0x1f0 [ 135.562932] do_setlink+0x9dd/0x2c50 [ 135.566632] ? rtnl_register+0x20/0x20 [ 135.570505] ? trace_hardirqs_off+0x10/0x10 [ 135.574807] ? trace_hardirqs_on+0x10/0x10 [ 135.579039] ? trace_hardirqs_off+0x10/0x10 [ 135.583345] ? find_held_lock+0x36/0x1d0 [ 135.587388] ? find_held_lock+0x36/0x1d0 [ 135.591435] ? free_one_page+0x9c4/0x1050 [ 135.595557] ? lock_downgrade+0x7f0/0x7f0 [ 135.599682] ? trace_hardirqs_off+0xd/0x10 [ 135.603910] ? bad_range+0x121/0x3a0 [ 135.607607] ? __this_cpu_preempt_check+0x13/0x20 [ 135.612435] ? do_raw_spin_unlock+0x16a/0x250 [ 135.616925] rtnl_newlink+0xe0c/0x1390 [ 135.620885] ? rtnl_link_unregister+0x270/0x270 [ 135.625534] ? finish_task_switch+0x448/0x650 [ 135.630021] ? find_held_lock+0x36/0x1d0 [ 135.634069] ? __mutex_lock+0x8b7/0x14c0 [ 135.638107] ? lock_downgrade+0x7f0/0x7f0 [ 135.642299] ? do_raw_spin_unlock+0x16a/0x250 [ 135.646803] rtnetlink_rcv_msg+0x34c/0x9e0 [ 135.651045] ? rtnl_bridge_getlink+0x760/0x760 [ 135.655603] ? find_held_lock+0x36/0x1d0 [ 135.659663] netlink_rcv_skb+0x133/0x370 [ 135.664060] ? rtnl_bridge_getlink+0x760/0x760 [ 135.668630] ? netlink_ack+0xa00/0xa00 [ 135.672503] ? netlink_deliver_tap+0x8e/0x920 [ 135.676987] rtnetlink_rcv+0x10/0x20 [ 135.680681] netlink_unicast+0x40b/0x600 [ 135.684733] ? netlink_attachskb+0x6d0/0x6d0 [ 135.689135] netlink_sendmsg+0x730/0xbd0 [ 135.693179] ? netlink_unicast+0x600/0x600 [ 135.697391] ? selinux_socket_sendmsg+0x31/0x40 [ 135.702243] ? security_socket_sendmsg+0x6a/0xa0 [ 135.706979] ? netlink_unicast+0x600/0x600 [ 135.711198] sock_sendmsg+0xb5/0xf0 [ 135.714803] ___sys_sendmsg+0x625/0x920 [ 135.719113] ? trace_hardirqs_off+0x10/0x10 [ 135.723417] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 135.728165] ? find_held_lock+0x36/0x1d0 [ 135.732215] ? lock_downgrade+0x7f0/0x7f0 [ 135.736350] ? __fget+0x1ca/0x2f0 [ 135.739791] ? __fget_light+0x166/0x200 [ 135.743857] ? __fdget+0xe/0x10 [ 135.747129] ? sockfd_lookup_light+0x1c/0x150 [ 135.751656] __sys_sendmsg+0xc1/0x140 [ 135.755454] ? SyS_shutdown+0x180/0x180 [ 135.759518] ? __sb_end_write+0xa4/0xd0 [ 135.763470] ? mutex_unlock+0xd/0x10 [ 135.767173] ? do_syscall_64+0x4c/0x5b0 [ 135.771130] ? __sys_sendmsg+0x140/0x140 [ 135.775179] SyS_sendmsg+0xd/0x20 [ 135.778656] do_syscall_64+0x1c7/0x5b0 [ 135.782532] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 135.787365] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 135.792538] RIP: 0033:0x45b399 [ 135.795749] RSP: 002b:00007f14ce115c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 135.803431] RAX: ffffffffffffffda RBX: 00007f14ce1166d4 RCX: 000000000045b399 [ 135.810679] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 135.818009] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 135.825475] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 135.832736] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 135.843867] batman_adv: batadv0: Adding interface: macvtap0 [ 135.850046] batman_adv: batadv0: The MTU of interface macvtap0 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. [ 135.875011] batman_adv: batadv0: Interface activated: macvtap0 [ 135.881811] FAULT_INJECTION: forcing a failure. [ 135.881811] name failslab, interval 1, probability 0, space 0, times 0 [ 135.900131] CPU: 1 PID: 8477 Comm: syz-executor.1 Not tainted 4.14.183-syzkaller #0 [ 135.908201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 135.917552] Call Trace: [ 135.920121] dump_stack+0xf7/0x13b [ 135.923638] should_fail.cold.3+0x105/0x14b [ 135.928197] should_failslab+0xba/0xf0 [ 135.932060] kmem_cache_alloc_node+0x287/0x790 [ 135.936627] __alloc_skb+0x92/0x500 [ 135.940239] ? skb_trim+0x160/0x160 [ 135.943865] ? if_nlmsg_size+0x2d9/0x6f0 [ 135.947929] rtmsg_ifinfo_build_skb+0x68/0x120 [ 135.952534] rtmsg_ifinfo_event.part.27+0x16/0xb0 [ 135.957526] ? netdev_adjacent_sysfs_add+0x94/0xb0 [ 135.962611] rtnetlink_event+0xc2/0x110 [ 135.966597] notifier_call_chain+0xd6/0x150 [ 135.970918] raw_notifier_call_chain+0x11/0x20 [ 135.975478] call_netdevice_notifiers_info+0x4b/0x60 [ 135.980578] __netdev_upper_dev_link+0x18e/0x1f0 [ 135.985308] ? netdev_upper_dev_unlink+0xe0/0xe0 [ 135.990045] netdev_master_upper_dev_link+0x14/0x20 [ 135.995169] batadv_hardif_enable_interface+0x1f4/0xa10 [ 136.000578] batadv_softif_slave_add+0x7f/0xd0 [ 136.005151] do_set_master+0x163/0x1f0 [ 136.009031] do_setlink+0x9dd/0x2c50 [ 136.012730] ? rtnl_register+0x20/0x20 [ 136.016614] ? __lock_acquire+0x6a4/0x4500 [ 136.020838] ? trace_hardirqs_off+0x10/0x10 [ 136.025143] rtnl_newlink+0xe0c/0x1390 [ 136.029015] ? rtnl_link_unregister+0x270/0x270 [ 136.033667] ? finish_task_switch+0x178/0x650 [ 136.038160] ? finish_task_switch+0x14d/0x650 [ 136.042799] ? find_held_lock+0x36/0x1d0 [ 136.046841] ? __mutex_lock+0x8b7/0x14c0 [ 136.050883] ? lock_downgrade+0x7f0/0x7f0 [ 136.055020] ? do_raw_spin_unlock+0x16a/0x250 [ 136.059508] rtnetlink_rcv_msg+0x34c/0x9e0 [ 136.063718] ? rtnl_bridge_getlink+0x760/0x760 [ 136.068274] ? find_held_lock+0x36/0x1d0 [ 136.072325] netlink_rcv_skb+0x133/0x370 [ 136.076466] ? rtnl_bridge_getlink+0x760/0x760 [ 136.081033] ? netlink_ack+0xa00/0xa00 [ 136.085072] ? netlink_deliver_tap+0x8e/0x920 [ 136.089562] rtnetlink_rcv+0x10/0x20 [ 136.093249] netlink_unicast+0x40b/0x600 [ 136.097285] ? netlink_attachskb+0x6d0/0x6d0 [ 136.101756] netlink_sendmsg+0x730/0xbd0 [ 136.105806] ? netlink_unicast+0x600/0x600 [ 136.110023] ? selinux_socket_sendmsg+0x31/0x40 [ 136.114677] ? security_socket_sendmsg+0x6a/0xa0 [ 136.120361] ? netlink_unicast+0x600/0x600 [ 136.124665] sock_sendmsg+0xb5/0xf0 [ 136.128277] ___sys_sendmsg+0x625/0x920 [ 136.132224] ? trace_hardirqs_off+0x10/0x10 [ 136.136528] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 136.141269] ? find_held_lock+0x36/0x1d0 [ 136.145307] ? lock_downgrade+0x7f0/0x7f0 [ 136.149431] ? __fget+0x1ca/0x2f0 [ 136.152946] ? __fget_light+0x166/0x200 [ 136.156908] ? __fdget+0xe/0x10 [ 136.160249] ? sockfd_lookup_light+0x1c/0x150 [ 136.164720] __sys_sendmsg+0xc1/0x140 [ 136.168584] ? SyS_shutdown+0x180/0x180 [ 136.172545] ? __sb_end_write+0xa4/0xd0 [ 136.176499] ? mutex_unlock+0xd/0x10 [ 136.180212] ? do_syscall_64+0x4c/0x5b0 [ 136.184172] ? __sys_sendmsg+0x140/0x140 [ 136.188206] SyS_sendmsg+0xd/0x20 [ 136.191893] do_syscall_64+0x1c7/0x5b0 [ 136.195763] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 136.200756] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 136.205939] RIP: 0033:0x45b399 [ 136.209121] RSP: 002b:00007f6187b8ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 136.216807] RAX: ffffffffffffffda RBX: 00007f6187b8b6d4 RCX: 000000000045b399 [ 136.224105] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 136.231352] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 136.242614] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 136.249875] R13: 00000000000009cb R14: 00000000004cb3c7 R15: 000000000000000e [ 136.262430] batman_adv: batadv0: Adding interface: macsec0 [ 136.266405] ------------[ cut here ]------------ [ 136.268580] batman_adv: batadv0: The MTU of interface macsec0 is too small (1468) 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. [ 136.273365] WARNING: CPU: 0 PID: 101 at net/batman-adv/bat_iv_ogm.c:588 batadv_iv_send_outstanding_bat_ogm_packet+0x633/0x7c0 [ 136.273371] Kernel panic - not syncing: panic_on_warn set ... [ 136.273371] [ 136.273383] CPU: 0 PID: 101 Comm: kworker/u4:2 Not tainted 4.14.183-syzkaller #0 [ 136.273389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 136.273400] Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet [ 136.298373] batman_adv: batadv0: Interface activated: macsec0 [ 136.309534] Call Trace: [ 136.309551] dump_stack+0xf7/0x13b [ 136.309559] ? batadv_iv_send_outstanding_bat_ogm_packet+0x633/0x7c0 [ 136.309564] panic+0x1b0/0x358 [ 136.309568] ? add_taint.cold.5+0x11/0x11 [ 136.309578] ? batadv_iv_send_outstanding_bat_ogm_packet+0x633/0x7c0 [ 136.309583] __warn.cold.8+0x25/0x2c [ 136.309588] ? batadv_iv_send_outstanding_bat_ogm_packet+0x633/0x7c0 [ 136.309592] report_bug+0x1a4/0x1f3 [ 136.309601] do_error_trap+0x1bd/0x310 [ 136.309608] ? math_error+0x300/0x300 [ 136.320295] FAULT_INJECTION: forcing a failure. [ 136.320295] name failslab, interval 1, probability 0, space 0, times 0 [ 136.324470] ? find_held_lock+0x36/0x1d0 [ 136.409718] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 136.414681] do_invalid_op+0x1b/0x20 [ 136.418398] invalid_op+0x1b/0x40 [ 136.421827] RIP: 0010:batadv_iv_send_outstanding_bat_ogm_packet+0x633/0x7c0 [ 136.429006] RSP: 0018:ffff8880a9aafce0 EFLAGS: 00010286 [ 136.434355] RAX: ffff88808d4c2900 RBX: ffff8880a92f3488 RCX: 1ffff110118fa36e [ 136.441604] RDX: 0000000000000000 RSI: ffffffff87f84e20 RDI: ffff88808c7d1b70 [ 136.448861] RBP: ffff8880a9aafd60 R08: ffff8880a9abad90 R09: 0000000000007f6c [ 136.456574] R10: 0000000000000028 R11: ffff8880a9aba4c0 R12: ffff88808bd314c0 [ 136.463829] R13: ffff8880a92f3440 R14: ffff88808c7d1b00 R15: ffff8880a92f3528 [ 136.471204] process_one_work+0x79e/0x16c0 [ 136.475437] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 136.480102] worker_thread+0xcc/0xee0 [ 136.484016] kthread+0x338/0x400 [ 136.487385] ? process_one_work+0x16c0/0x16c0 [ 136.491875] ? kthread_create_on_node+0xa0/0xa0 [ 136.496532] ret_from_fork+0x24/0x30 [ 136.501770] Kernel Offset: disabled [ 136.505437] Rebooting in 86400 seconds..