[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 61.127544][ T26] audit: type=1800 audit(1562681155.163:25): pid=8789 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 61.157945][ T26] audit: type=1800 audit(1562681155.163:26): pid=8789 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 61.178577][ T26] audit: type=1800 audit(1562681155.163:27): pid=8789 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. syzkaller login: [ 72.989693][ T8953] IPVS: ftp: loaded support on port[0] = 21 [ 72.997451][ T8952] IPVS: ftp: loaded support on port[0] = 21 [ 73.004197][ T8950] IPVS: ftp: loaded support on port[0] = 21 [ 73.007501][ T8951] IPVS: ftp: loaded support on port[0] = 21 [ 73.018934][ T8946] IPVS: ftp: loaded support on port[0] = 21 [ 73.027427][ T8949] IPVS: ftp: loaded support on port[0] = 21 [ 73.297042][ T8951] chnl_net:caif_netlink_parms(): no params data found [ 73.306214][ T8952] chnl_net:caif_netlink_parms(): no params data found [ 73.357904][ T8950] chnl_net:caif_netlink_parms(): no params data found [ 73.471444][ T8946] chnl_net:caif_netlink_parms(): no params data found [ 73.537142][ T8951] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.544976][ T8951] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.552738][ T8951] device bridge_slave_0 entered promiscuous mode [ 73.577714][ T8953] chnl_net:caif_netlink_parms(): no params data found [ 73.591256][ T8949] chnl_net:caif_netlink_parms(): no params data found [ 73.601106][ T8951] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.609002][ T8951] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.617505][ T8951] device bridge_slave_1 entered promiscuous mode [ 73.625269][ T8950] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.632366][ T8950] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.640197][ T8950] device bridge_slave_0 entered promiscuous mode [ 73.647907][ T8952] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.655550][ T8952] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.663136][ T8952] device bridge_slave_0 entered promiscuous mode [ 73.699873][ T8950] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.707055][ T8950] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.714754][ T8950] device bridge_slave_1 entered promiscuous mode [ 73.721801][ T8952] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.729581][ T8952] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.740826][ T8952] device bridge_slave_1 entered promiscuous mode [ 73.755718][ T8946] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.762771][ T8946] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.770853][ T8946] device bridge_slave_0 entered promiscuous mode [ 73.779644][ T8951] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.790060][ T8951] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.820111][ T8946] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.827288][ T8946] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.835156][ T8946] device bridge_slave_1 entered promiscuous mode [ 73.856592][ T8953] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.863877][ T8953] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.872092][ T8953] device bridge_slave_0 entered promiscuous mode [ 73.883766][ T8953] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.890864][ T8953] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.899297][ T8953] device bridge_slave_1 entered promiscuous mode [ 73.915123][ T8952] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.925839][ T8951] team0: Port device team_slave_0 added [ 73.932627][ T8952] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.943210][ T8950] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.959615][ T8949] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.967130][ T8949] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.975701][ T8949] device bridge_slave_0 entered promiscuous mode [ 73.992481][ T8951] team0: Port device team_slave_1 added [ 73.999509][ T8953] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.011558][ T8950] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.021017][ T8949] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.028506][ T8949] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.036472][ T8949] device bridge_slave_1 entered promiscuous mode [ 74.044867][ T8946] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.055523][ T8946] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.069663][ T8952] team0: Port device team_slave_0 added [ 74.076514][ T8953] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.116748][ T8952] team0: Port device team_slave_1 added [ 74.123479][ T8949] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.133828][ T8950] team0: Port device team_slave_0 added [ 74.185886][ T8951] device hsr_slave_0 entered promiscuous mode [ 74.234712][ T8951] device hsr_slave_1 entered promiscuous mode [ 74.282822][ T8953] team0: Port device team_slave_0 added [ 74.290446][ T8949] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.300878][ T8950] team0: Port device team_slave_1 added [ 74.307529][ T8946] team0: Port device team_slave_0 added [ 74.327370][ T8953] team0: Port device team_slave_1 added [ 74.375931][ T8952] device hsr_slave_0 entered promiscuous mode [ 74.444310][ T8952] device hsr_slave_1 entered promiscuous mode [ 74.524107][ T8952] debugfs: Directory 'hsr0' with parent '/' already present! [ 74.540146][ T8946] team0: Port device team_slave_1 added [ 74.558667][ T8949] team0: Port device team_slave_0 added [ 74.595867][ T8950] device hsr_slave_0 entered promiscuous mode [ 74.644269][ T8950] device hsr_slave_1 entered promiscuous mode [ 74.684160][ T8950] debugfs: Directory 'hsr0' with parent '/' already present! [ 74.746142][ T8953] device hsr_slave_0 entered promiscuous mode [ 74.814383][ T8953] device hsr_slave_1 entered promiscuous mode [ 74.884289][ T8953] debugfs: Directory 'hsr0' with parent '/' already present! [ 74.893154][ T8949] team0: Port device team_slave_1 added [ 74.947087][ T8946] device hsr_slave_0 entered promiscuous mode [ 74.997684][ T8946] device hsr_slave_1 entered promiscuous mode [ 75.044107][ T8946] debugfs: Directory 'hsr0' with parent '/' already present! [ 75.156331][ T8949] device hsr_slave_0 entered promiscuous mode [ 75.204647][ T8949] device hsr_slave_1 entered promiscuous mode [ 75.274070][ T8949] debugfs: Directory 'hsr0' with parent '/' already present! [ 75.341322][ T8950] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.379419][ T2984] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.389637][ T2984] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.401812][ T8950] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.438091][ T8946] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.461845][ T8951] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.476903][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.486697][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.495304][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.502455][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.517372][ T8953] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.558280][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.566977][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.575403][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.582973][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.591601][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.600847][ T8960] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.607958][ T8960] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.616619][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 75.625295][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 75.633769][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.641593][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.649559][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 75.658406][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.667509][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.679662][ T8946] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.690000][ T8951] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.718620][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 75.728298][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.737616][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 75.747752][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.757000][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.765784][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.775081][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.782124][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.790093][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 75.801606][ T8952] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.821665][ T8953] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.852655][ T8950] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.866169][ T8950] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.873805][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 75.883191][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.892270][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 75.901033][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.909856][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.916973][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.925238][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 75.932840][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.940716][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.949652][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.958044][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.965123][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.972857][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 75.982231][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.990646][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.997709][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.006090][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.014678][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.023086][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.031698][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.040003][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.049186][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.058000][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.066444][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.074810][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.083006][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.091665][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.100060][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.118777][ T8949] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.139179][ T8946] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.155298][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.165396][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.173935][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.182296][ T8960] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.189378][ T8960] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.197334][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.206179][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.214846][ T8960] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.221882][ T8960] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.229513][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.238537][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.252129][ T8949] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.288116][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.295914][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.303480][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.312974][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.321786][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.330306][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.339078][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.347638][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.356084][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.364855][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.378759][ T8952] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.400231][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 76.408344][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.418009][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.426917][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.435621][ T8962] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.442676][ T8962] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.450911][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.460044][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.468708][ T8962] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.475911][ T8962] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.483584][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.493372][ T8962] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.506016][ T8946] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.515210][ T8950] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.555782][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.578204][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.587059][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.594170][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.602377][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 76.611075][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.619349][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.626453][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.636597][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.645401][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 76.653818][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.663071][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.671705][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.680632][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.689148][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.699481][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 76.707552][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.715873][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.724791][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.735791][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.743693][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.761627][ T8952] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 76.772222][ T8952] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.805722][ T8953] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.813633][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.832221][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.850795][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.860387][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.869157][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.877587][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.886199][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 76.895422][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.903791][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 76.912432][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.920870][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 76.929379][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.937771][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 76.946521][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready executing program [ 76.962503][ T8952] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.990102][ T8951] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 77.012258][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.021596][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.029751][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.038650][ T8960] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.061387][ T8949] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.080744][ T8949] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.099520][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready executing program [ 77.109299][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.118593][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.127381][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.136057][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.179445][ T8980] [ 77.181794][ T8980] ====================================================== [ 77.188783][ T8980] WARNING: possible circular locking dependency detected [ 77.195774][ T8980] 5.2.0-next-20190709 #34 Not tainted [ 77.201113][ T8980] ------------------------------------------------------ [ 77.208104][ T8980] syz-executor109/8980 is trying to acquire lock: [ 77.214487][ T8980] 000000003fcfc95a (&xs->mutex){+.+.}, at: xsk_notifier+0x145/0x2a0 [ 77.222455][ T8980] [ 77.222455][ T8980] but task is already holding lock: [ 77.229807][ T8980] 000000004b8c638b (&net->xdp.lock){+.+.}, at: xsk_notifier+0xa3/0x2a0 [ 77.238043][ T8980] [ 77.238043][ T8980] which lock already depends on the new lock. [ 77.238043][ T8980] [ 77.248418][ T8980] [ 77.248418][ T8980] the existing dependency chain (in reverse order) is: [ 77.257408][ T8980] [ 77.257408][ T8980] -> #2 (&net->xdp.lock){+.+.}: [ 77.264419][ T8980] __mutex_lock+0xf7/0x1340 [ 77.269439][ T8980] mutex_lock_nested+0x16/0x20 [ 77.274714][ T8980] xsk_notifier+0xa3/0x2a0 [ 77.279632][ T8980] notifier_call_chain+0xc2/0x230 [ 77.285154][ T8980] raw_notifier_call_chain+0x2e/0x40 [ 77.290940][ T8980] call_netdevice_notifiers_info+0x3f/0x90 [ 77.297245][ T8980] rollback_registered_many+0x8d5/0xdf0 [ 77.303286][ T8980] rollback_registered+0x109/0x1d0 [ 77.308908][ T8980] unregister_netdevice_queue+0x1ee/0x2c0 [ 77.315126][ T8980] br_dev_delete+0x145/0x1a0 [ 77.320235][ T8980] br_del_bridge+0xd7/0x120 [ 77.325277][ T8980] br_ioctl_deviceless_stub+0x2b0/0x7c0 [ 77.331322][ T8980] sock_ioctl+0x44b/0x790 [ 77.336148][ T8980] do_vfs_ioctl+0xdb6/0x13e0 [ 77.341233][ T8980] ksys_ioctl+0xab/0xd0 [ 77.345882][ T8980] __x64_sys_ioctl+0x73/0xb0 [ 77.350968][ T8980] do_syscall_64+0xfd/0x6a0 [ 77.355979][ T8980] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.362398][ T8980] [ 77.362398][ T8980] -> #1 (rtnl_mutex){+.+.}: [ 77.369062][ T8980] __mutex_lock+0xf7/0x1340 [ 77.374075][ T8980] mutex_lock_nested+0x16/0x20 [ 77.379337][ T8980] rtnl_lock+0x17/0x20 [ 77.383904][ T8980] xdp_umem_assign_dev+0xbe/0x8f0 [ 77.389425][ T8980] xsk_bind+0x4d7/0xe80 [ 77.394079][ T8980] __sys_bind+0x239/0x290 [ 77.398918][ T8980] __x64_sys_bind+0x73/0xb0 [ 77.403935][ T8980] do_syscall_64+0xfd/0x6a0 [ 77.408971][ T8980] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.415371][ T8980] [ 77.415371][ T8980] -> #0 (&xs->mutex){+.+.}: [ 77.422026][ T8980] __lock_acquire+0x25a9/0x4c30 [ 77.427378][ T8980] lock_acquire+0x190/0x410 [ 77.432375][ T8980] __mutex_lock+0xf7/0x1340 [ 77.437378][ T8980] mutex_lock_nested+0x16/0x20 [ 77.442637][ T8980] xsk_notifier+0x145/0x2a0 [ 77.447635][ T8980] notifier_call_chain+0xc2/0x230 [ 77.453153][ T8980] raw_notifier_call_chain+0x2e/0x40 [ 77.458941][ T8980] call_netdevice_notifiers_info+0x3f/0x90 [ 77.465275][ T8980] rollback_registered_many+0x8d5/0xdf0 [ 77.471342][ T8980] rollback_registered+0x109/0x1d0 [ 77.476949][ T8980] unregister_netdevice_queue+0x1ee/0x2c0 [ 77.483193][ T8980] br_dev_delete+0x145/0x1a0 [ 77.488284][ T8980] br_del_bridge+0xd7/0x120 [ 77.493287][ T8980] br_ioctl_deviceless_stub+0x2b0/0x7c0 [ 77.499347][ T8980] sock_ioctl+0x44b/0x790 [ 77.504176][ T8980] do_vfs_ioctl+0xdb6/0x13e0 [ 77.509273][ T8980] ksys_ioctl+0xab/0xd0 [ 77.513943][ T8980] __x64_sys_ioctl+0x73/0xb0 [ 77.519044][ T8980] do_syscall_64+0xfd/0x6a0 [ 77.524045][ T8980] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.537408][ T8980] [ 77.537408][ T8980] other info that might help us debug this: [ 77.537408][ T8980] [ 77.548809][ T8980] Chain exists of: [ 77.548809][ T8980] &xs->mutex --> rtnl_mutex --> &net->xdp.lock [ 77.548809][ T8980] [ 77.560858][ T8980] Possible unsafe locking scenario: [ 77.560858][ T8980] [ 77.568287][ T8980] CPU0 CPU1 [ 77.573633][ T8980] ---- ---- [ 77.578978][ T8980] lock(&net->xdp.lock); [ 77.583408][ T8980] lock(rtnl_mutex); [ 77.590491][ T8980] lock(&net->xdp.lock); [ 77.597419][ T8980] lock(&xs->mutex); [ 77.601376][ T8980] [ 77.601376][ T8980] *** DEADLOCK *** [ 77.601376][ T8980] [ 77.609512][ T8980] 3 locks held by syz-executor109/8980: [ 77.615035][ T8980] #0: 00000000291eadab (br_ioctl_mutex){+.+.}, at: sock_ioctl+0x427/0x790 [ 77.623620][ T8980] #1: 00000000d3841220 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 77.631593][ T8980] #2: 000000004b8c638b (&net->xdp.lock){+.+.}, at: xsk_notifier+0xa3/0x2a0 [ 77.640258][ T8980] [ 77.640258][ T8980] stack backtrace: [ 77.646135][ T8980] CPU: 1 PID: 8980 Comm: syz-executor109 Not tainted 5.2.0-next-20190709 #34 [ 77.654865][ T8980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.664898][ T8980] Call Trace: [ 77.668176][ T8980] dump_stack+0x172/0x1f0 [ 77.672495][ T8980] print_circular_bug.cold+0x163/0x172 [ 77.677953][ T8980] check_noncircular+0x345/0x3e0 [ 77.682893][ T8980] ? print_circular_bug+0x200/0x200 [ 77.688078][ T8980] ? stack_trace_consume_entry+0x190/0x190 [ 77.693875][ T8980] ? is_bpf_text_address+0xd3/0x170 [ 77.699053][ T8980] ? __lockdep_reset_lock+0x450/0x450 [ 77.704403][ T8980] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.710628][ T8980] ? find_first_zero_bit+0x9a/0xc0 [ 77.715825][ T8980] __lock_acquire+0x25a9/0x4c30 [ 77.720669][ T8980] ? mark_held_locks+0xf0/0xf0 [ 77.725414][ T8980] lock_acquire+0x190/0x410 [ 77.729895][ T8980] ? xsk_notifier+0x145/0x2a0 [ 77.734550][ T8980] ? xsk_notifier+0x145/0x2a0 [ 77.739323][ T8980] __mutex_lock+0xf7/0x1340 [ 77.743816][ T8980] ? xsk_notifier+0x145/0x2a0 [ 77.748479][ T8980] ? mark_lock+0xc0/0x11e0 [ 77.752878][ T8980] ? find_held_lock+0x35/0x130 [ 77.757638][ T8980] ? xsk_notifier+0x145/0x2a0 [ 77.762294][ T8980] ? mutex_lock_io_nested+0x11d0/0x11d0 [ 77.767832][ T8980] ? cfg80211_init_wdev+0x500/0x500 [ 77.773009][ T8980] ? _raw_spin_unlock_bh+0x31/0x40 [ 77.778124][ T8980] ? __local_bh_enable_ip+0x15a/0x270 [ 77.783497][ T8980] ? lockdep_hardirqs_on+0x418/0x5d0 [ 77.788767][ T8980] ? rt_flush_dev+0x1c8/0x250 [ 77.793434][ T8980] ? trace_hardirqs_on+0x67/0x240 [ 77.798446][ T8980] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 77.804151][ T8980] ? find_next_bit+0x107/0x130 [ 77.808902][ T8980] ? cpumask_next+0x41/0x50 [ 77.813393][ T8980] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 77.819102][ T8980] mutex_lock_nested+0x16/0x20 [ 77.823849][ T8980] ? ipmr_device_event+0x1ad/0x220 [ 77.828952][ T8980] ? mutex_lock_nested+0x16/0x20 [ 77.833881][ T8980] xsk_notifier+0x145/0x2a0 [ 77.838365][ T8980] notifier_call_chain+0xc2/0x230 [ 77.843370][ T8980] raw_notifier_call_chain+0x2e/0x40 [ 77.848664][ T8980] call_netdevice_notifiers_info+0x3f/0x90 [ 77.854478][ T8980] rollback_registered_many+0x8d5/0xdf0 [ 77.860021][ T8980] ? generic_xdp_install+0x3d0/0x3d0 [ 77.865296][ T8980] ? kernfs_put+0x30f/0x590 [ 77.869799][ T8980] ? kernfs_put+0x30f/0x590 [ 77.874281][ T8980] rollback_registered+0x109/0x1d0 [ 77.879370][ T8980] ? rollback_registered_many+0xdf0/0xdf0 [ 77.885086][ T8980] unregister_netdevice_queue+0x1ee/0x2c0 [ 77.890791][ T8980] br_dev_delete+0x145/0x1a0 [ 77.895365][ T8980] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.901594][ T8980] br_del_bridge+0xd7/0x120 [ 77.906096][ T8980] br_ioctl_deviceless_stub+0x2b0/0x7c0 [ 77.911620][ T8980] ? lock_downgrade+0x920/0x920 [ 77.916457][ T8980] ? lockdep_hardirqs_on+0x418/0x5d0 [ 77.921721][ T8980] ? old_dev_ioctl.isra.0+0x1600/0x1600 [ 77.927245][ T8980] ? old_dev_ioctl.isra.0+0x1600/0x1600 [ 77.932780][ T8980] sock_ioctl+0x44b/0x790 [ 77.937101][ T8980] ? dlci_ioctl_set+0x40/0x40 [ 77.941894][ T8980] ? dlci_ioctl_set+0x40/0x40 [ 77.946562][ T8980] do_vfs_ioctl+0xdb6/0x13e0 [ 77.951165][ T8980] ? ioctl_preallocate+0x210/0x210 [ 77.956279][ T8980] ? __fget+0x384/0x560 [ 77.960416][ T8980] ? ksys_dup3+0x3e0/0x3e0 [ 77.964841][ T8980] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.971089][ T8980] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.977579][ T8980] ? tomoyo_file_ioctl+0x23/0x30 [ 77.982527][ T8980] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.988749][ T8980] ? security_file_ioctl+0x8d/0xc0 [ 77.993839][ T8980] ksys_ioctl+0xab/0xd0 [ 77.997971][ T8980] __x64_sys_ioctl+0x73/0xb0 [ 78.002562][ T8980] do_syscall_64+0xfd/0x6a0 [ 78.007042][ T8980] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 78.012907][ T8980] RIP: 0033:0x447929 [ 78.016777][ T8980] Code: e8 cc e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 78.036392][ T8980] RSP: 002b:00007f8e7c055d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 78.044801][ T8980] RAX: ffffffffffffffda RBX: 00000000006dcc58 RCX: 0000000000447929 [ 78.052762][ T8980] RDX: 0000000020000180 RSI: 00000000000089a1 RDI: 0000000000000003 [ 78.060708][ T8980] RBP: 00000000006dcc50 R08: 00007f8e7c056700 R09: 0000000000000000 [ 78.068653][ T8980] R10: 00007f8e7c056700 R11: 0000000000000246 R12: 00000000006dcc5c [ 78.076616][ T8980] R13: 0000003066736362 R14: 0000000000000000 R15: 0000003066736362