[ 29.909424][ T24] audit: type=1800 audit(1562514733.197:22): pid=7136 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 syzkaller login: [ 48.906717][ T7305] IPVS: ftp: loaded support on port[0] = 21 [ 49.315102][ T7291] can: request_module (can-proto-0) failed. [ 50.332774][ T7291] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts. 2019/07/07 15:52:41 parsed 1 programs 2019/07/07 15:52:42 executed programs: 0 [ 58.830452][ T7378] IPVS: ftp: loaded support on port[0] = 21 [ 58.871768][ T7382] IPVS: ftp: loaded support on port[0] = 21 [ 58.875877][ T7380] IPVS: ftp: loaded support on port[0] = 21 [ 58.894850][ T7383] IPVS: ftp: loaded support on port[0] = 21 [ 58.973264][ T7387] IPVS: ftp: loaded support on port[0] = 21 [ 58.984791][ T7386] IPVS: ftp: loaded support on port[0] = 21 [ 59.053251][ T7378] chnl_net:caif_netlink_parms(): no params data found [ 59.072260][ T7382] chnl_net:caif_netlink_parms(): no params data found [ 59.116855][ T7378] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.125781][ T7378] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.134208][ T7378] device bridge_slave_0 entered promiscuous mode [ 59.144125][ T7378] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.151296][ T7378] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.158932][ T7378] device bridge_slave_1 entered promiscuous mode [ 59.179376][ T7378] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 59.213482][ T7378] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 59.230098][ T7382] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.238255][ T7382] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.245738][ T7382] device bridge_slave_0 entered promiscuous mode [ 59.254833][ T7382] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.261953][ T7382] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.269541][ T7382] device bridge_slave_1 entered promiscuous mode [ 59.291839][ T7382] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 59.318649][ T7382] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 59.342720][ T7378] team0: Port device team_slave_0 added [ 59.380489][ T7382] team0: Port device team_slave_0 added [ 59.390527][ T7378] team0: Port device team_slave_1 added [ 59.404512][ T7382] team0: Port device team_slave_1 added [ 59.415443][ T7380] chnl_net:caif_netlink_parms(): no params data found [ 59.430246][ T7383] chnl_net:caif_netlink_parms(): no params data found [ 59.549113][ T7378] device hsr_slave_0 entered promiscuous mode [ 59.587023][ T7378] device hsr_slave_1 entered promiscuous mode [ 59.638062][ T7383] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.645245][ T7383] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.652940][ T7383] device bridge_slave_0 entered promiscuous mode [ 59.664264][ T7383] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.671405][ T7383] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.679250][ T7383] device bridge_slave_1 entered promiscuous mode [ 59.737982][ T7382] device hsr_slave_0 entered promiscuous mode [ 59.776874][ T7382] device hsr_slave_1 entered promiscuous mode [ 59.858082][ T7387] chnl_net:caif_netlink_parms(): no params data found [ 59.873193][ T7383] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 59.881833][ T7386] chnl_net:caif_netlink_parms(): no params data found [ 59.901202][ T7380] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.908640][ T7380] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.916147][ T7380] device bridge_slave_0 entered promiscuous mode [ 59.924413][ T7383] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 59.940350][ T7378] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.947517][ T7378] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.955276][ T7378] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.962376][ T7378] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.981347][ T7380] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.988711][ T7380] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.996254][ T7380] device bridge_slave_1 entered promiscuous mode [ 60.013743][ T7383] team0: Port device team_slave_0 added [ 60.032438][ T7387] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.040761][ T7387] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.048472][ T7387] device bridge_slave_0 entered promiscuous mode [ 60.061833][ T7383] team0: Port device team_slave_1 added [ 60.067963][ T7382] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.075102][ T7382] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.082453][ T7382] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.089546][ T7382] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.111039][ T7387] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.119249][ T7387] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.126913][ T7387] device bridge_slave_1 entered promiscuous mode [ 60.140172][ T7380] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 60.150316][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.158638][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.166535][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.174024][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.187541][ T7386] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.194610][ T7386] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.202857][ T7386] device bridge_slave_0 entered promiscuous mode [ 60.214375][ T7386] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.222053][ T7386] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.229994][ T7386] device bridge_slave_1 entered promiscuous mode [ 60.243909][ T7380] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 60.263472][ T7380] team0: Port device team_slave_0 added [ 60.290819][ T7386] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 60.301064][ T7386] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 60.311229][ T7380] team0: Port device team_slave_1 added [ 60.318223][ T7387] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 60.368843][ T7383] device hsr_slave_0 entered promiscuous mode [ 60.426978][ T7383] device hsr_slave_1 entered promiscuous mode [ 60.492987][ T7387] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 60.521562][ T7386] team0: Port device team_slave_0 added [ 60.529201][ T7386] team0: Port device team_slave_1 added [ 60.589216][ T7380] device hsr_slave_0 entered promiscuous mode [ 60.656900][ T7380] device hsr_slave_1 entered promiscuous mode [ 60.717887][ T7387] team0: Port device team_slave_0 added [ 60.724942][ T7387] team0: Port device team_slave_1 added [ 60.733809][ T7378] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.799021][ T7386] device hsr_slave_0 entered promiscuous mode [ 60.847014][ T7386] device hsr_slave_1 entered promiscuous mode [ 60.929583][ T7387] device hsr_slave_0 entered promiscuous mode [ 60.967004][ T7387] device hsr_slave_1 entered promiscuous mode [ 61.045944][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.054167][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.069708][ T7378] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.107223][ T7382] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.116535][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.125915][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.134587][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.141700][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.163395][ T7382] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.173925][ T3770] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.182019][ T3770] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.191740][ T3770] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.200911][ T3770] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.209261][ T3770] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.216303][ T3770] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.267561][ T7386] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.280417][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.289916][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.299082][ T2996] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.306108][ T2996] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.313740][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.322382][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.331411][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.339815][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.348271][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.356679][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.369282][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.377778][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.385789][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.394238][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.402321][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.410832][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.419361][ T2996] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.426416][ T2996] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.433923][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.442797][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.453378][ T7387] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.464303][ T7378] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.475980][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.484289][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.493053][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.501497][ T2996] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.517491][ T7380] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.529762][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.540547][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.553839][ T7387] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.568415][ T7383] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.578192][ T7386] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.584945][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.594290][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.602669][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.610279][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.618087][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.626178][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.647363][ T7380] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.659796][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.668377][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.678335][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.685375][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.693088][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.701873][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.710616][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.717709][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.725179][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.733993][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.742362][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.752508][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.760438][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.768354][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.777035][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.785377][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.792501][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.800554][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.808487][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.819791][ T7378] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.832242][ T7383] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.862065][ T7382] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.879623][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.887541][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.895208][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.903950][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.912537][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.919616][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.928043][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.936463][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.944748][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.951795][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.960122][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.968551][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.977212][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.985528][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.993813][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.002572][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.011028][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.019261][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.027747][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.035850][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.043965][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.052675][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.061325][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.068397][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.075791][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.084542][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.092998][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.101540][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.109864][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.148808][ T7382] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.156413][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.169456][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.179486][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.187679][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.196158][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.205352][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.212626][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.220993][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.229584][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.238022][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.245047][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.252693][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.261327][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.269864][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.278476][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.286910][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.295329][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.303971][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.312715][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.321234][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.329473][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.337693][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.345819][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.353972][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.362300][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.370679][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.378981][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.387442][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.395551][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.404433][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.412294][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.420146][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.432968][ T7380] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.444752][ T7380] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.465280][ T7387] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.484621][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.494589][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.506815][ T7397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.514998][ T7397] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.523286][ T7397] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.531639][ T7397] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.553796][ T7386] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.570489][ T7387] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.607953][ T7383] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.638477][ T7380] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.755884][ T7383] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.950002][ T7438] [ 62.952348][ T7438] ====================================================== [ 62.959349][ T7438] WARNING: possible circular locking dependency detected [ 62.966358][ T7438] 5.2.0-rc3+ #1 Not tainted [ 62.970847][ T7438] ------------------------------------------------------ [ 62.977931][ T7438] syz-executor.1/7438 is trying to acquire lock: [ 62.984250][ T7438] 000000007656fa30 (&xs->mutex){+.+.}, at: xsk_notifier+0x100/0x240 [ 62.992216][ T7438] [ 62.992216][ T7438] but task is already holding lock: [ 62.999548][ T7438] 0000000060077bbe (&net->xdp.lock){+.+.}, at: xsk_notifier+0x72/0x240 [ 63.007758][ T7438] [ 63.007758][ T7438] which lock already depends on the new lock. [ 63.007758][ T7438] [ 63.018132][ T7438] [ 63.018132][ T7438] the existing dependency chain (in reverse order) is: [ 63.027116][ T7438] [ 63.027116][ T7438] -> #2 (&net->xdp.lock){+.+.}: [ 63.034130][ T7438] __mutex_lock+0xf5/0x1210 [ 63.039276][ T7438] mutex_lock_nested+0x16/0x20 [ 63.044552][ T7438] xsk_notifier+0x72/0x240 [ 63.049462][ T7438] notifier_call_chain+0x8a/0x160 [ 63.054976][ T7438] raw_notifier_call_chain+0x11/0x20 [ 63.060779][ T7438] call_netdevice_notifiers_info+0x28/0x60 [ 63.067082][ T7438] rollback_registered_many+0x78e/0xce0 [ 63.073121][ T7438] unregister_netdevice_many+0x3e/0x1f0 [ 63.079350][ T7438] ip6gre_exit_batch_net+0x3ad/0x5b0 [ 63.085133][ T7438] ops_exit_list.isra.5+0xd3/0x120 [ 63.090746][ T7438] cleanup_net+0x363/0x850 [ 63.095658][ T7438] process_one_work+0x830/0x16a0 [ 63.101093][ T7438] worker_thread+0x85/0xb60 [ 63.106089][ T7438] kthread+0x324/0x3e0 [ 63.110658][ T7438] ret_from_fork+0x24/0x30 [ 63.115559][ T7438] [ 63.115559][ T7438] -> #1 (rtnl_mutex){+.+.}: [ 63.122207][ T7438] __mutex_lock+0xf5/0x1210 [ 63.127222][ T7438] mutex_lock_nested+0x16/0x20 [ 63.132482][ T7438] rtnl_lock+0x12/0x20 [ 63.137052][ T7438] xdp_umem_assign_dev+0xa5/0xb20 [ 63.142589][ T7438] xsk_bind+0x49c/0x1180 [ 63.147344][ T7438] __sys_bind+0x1e1/0x230 [ 63.152162][ T7438] __x64_sys_bind+0x6e/0xb0 [ 63.157154][ T7438] do_syscall_64+0xd0/0x530 [ 63.162143][ T7438] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.168519][ T7438] [ 63.168519][ T7438] -> #0 (&xs->mutex){+.+.}: [ 63.175167][ T7438] lock_acquire+0x173/0x3d0 [ 63.180162][ T7438] __mutex_lock+0xf5/0x1210 [ 63.185155][ T7438] mutex_lock_nested+0x16/0x20 [ 63.190406][ T7438] xsk_notifier+0x100/0x240 [ 63.195402][ T7438] notifier_call_chain+0x8a/0x160 [ 63.201417][ T7438] raw_notifier_call_chain+0x11/0x20 [ 63.207194][ T7438] call_netdevice_notifiers_info+0x28/0x60 [ 63.213490][ T7438] rollback_registered_many+0x78e/0xce0 [ 63.219533][ T7438] rollback_registered+0xdc/0x190 [ 63.225080][ T7438] unregister_netdevice_queue+0x186/0x240 [ 63.231300][ T7438] br_dev_delete+0x127/0x190 [ 63.236375][ T7438] br_del_bridge+0x9a/0xe0 [ 63.241300][ T7438] br_ioctl_deviceless_stub+0x21f/0x640 [ 63.247353][ T7438] sock_ioctl+0x367/0x600 [ 63.252171][ T7438] do_vfs_ioctl+0x196/0x10c0 [ 63.257255][ T7438] ksys_ioctl+0x62/0x90 [ 63.261902][ T7438] __x64_sys_ioctl+0x6e/0xb0 [ 63.273002][ T7438] do_syscall_64+0xd0/0x530 [ 63.277999][ T7438] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.284380][ T7438] [ 63.284380][ T7438] other info that might help us debug this: [ 63.284380][ T7438] [ 63.294581][ T7438] Chain exists of: [ 63.294581][ T7438] &xs->mutex --> rtnl_mutex --> &net->xdp.lock [ 63.294581][ T7438] [ 63.306622][ T7438] Possible unsafe locking scenario: [ 63.306622][ T7438] [ 63.314046][ T7438] CPU0 CPU1 [ 63.319381][ T7438] ---- ---- [ 63.324718][ T7438] lock(&net->xdp.lock); [ 63.329011][ T7438] lock(rtnl_mutex); [ 63.335488][ T7438] lock(&net->xdp.lock); [ 63.342302][ T7438] lock(&xs->mutex); [ 63.346260][ T7438] [ 63.346260][ T7438] *** DEADLOCK *** [ 63.346260][ T7438] [ 63.354377][ T7438] 3 locks held by syz-executor.1/7438: [ 63.359815][ T7438] #0: 00000000dcbf0869 (br_ioctl_mutex){+.+.}, at: sock_ioctl+0x34a/0x600 [ 63.375440][ T7438] #1: 00000000f673a4c0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x12/0x20 [ 63.383399][ T7438] #2: 0000000060077bbe (&net->xdp.lock){+.+.}, at: xsk_notifier+0x72/0x240 [ 63.392050][ T7438] [ 63.392050][ T7438] stack backtrace: [ 63.397912][ T7438] CPU: 1 PID: 7438 Comm: syz-executor.1 Not tainted 5.2.0-rc3+ #1 [ 63.405679][ T7438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.415735][ T7438] Call Trace: [ 63.419226][ T7438] dump_stack+0x113/0x167 [ 63.423525][ T7438] print_circular_bug.cold.59+0x1bd/0x27d [ 63.429214][ T7438] __lock_acquire+0x3853/0x55b0 [ 63.434030][ T7438] ? mark_held_locks+0x130/0x130 [ 63.438934][ T7438] ? mark_held_locks+0x130/0x130 [ 63.443840][ T7438] ? find_held_lock+0x36/0x1d0 [ 63.448568][ T7438] ? __lock_acquire+0x5d9/0x55b0 [ 63.453469][ T7438] ? mark_held_locks+0x130/0x130 [ 63.458375][ T7438] lock_acquire+0x173/0x3d0 [ 63.462844][ T7438] ? xsk_notifier+0x100/0x240 [ 63.467493][ T7438] ? xsk_notifier+0x100/0x240 [ 63.472148][ T7438] ? xsk_notifier+0x100/0x240 [ 63.476792][ T7438] __mutex_lock+0xf5/0x1210 [ 63.481266][ T7438] ? xsk_notifier+0x100/0x240 [ 63.485934][ T7438] ? xsk_notifier+0x100/0x240 [ 63.490582][ T7438] ? mutex_lock_io_nested+0x10e0/0x10e0 [ 63.496098][ T7438] ? __local_bh_enable_ip+0x160/0x260 [ 63.501442][ T7438] ? _raw_spin_unlock_bh+0x30/0x40 [ 63.506529][ T7438] ? lockdep_hardirqs_on+0x424/0x5c0 [ 63.511789][ T7438] ? __local_bh_enable_ip+0x160/0x260 [ 63.517143][ T7438] ? rt_flush_dev+0x1c4/0x300 [ 63.521795][ T7438] ? cfg80211_init_wdev+0x490/0x490 [ 63.526976][ T7438] ? rt_flush_dev+0x1c4/0x300 [ 63.531651][ T7438] ? __local_bh_enable_ip+0x160/0x260 [ 63.536999][ T7438] ? cpumask_next+0x21/0x30 [ 63.541470][ T7438] ? rt_flush_dev+0x80/0x300 [ 63.546031][ T7438] mutex_lock_nested+0x16/0x20 [ 63.550763][ T7438] ? mutex_lock_nested+0x16/0x20 [ 63.555670][ T7438] xsk_notifier+0x100/0x240 [ 63.560143][ T7438] notifier_call_chain+0x8a/0x160 [ 63.565169][ T7438] raw_notifier_call_chain+0x11/0x20 [ 63.570429][ T7438] call_netdevice_notifiers_info+0x28/0x60 [ 63.576215][ T7438] rollback_registered_many+0x78e/0xce0 [ 63.581734][ T7438] ? debug_check_no_obj_freed+0x1ff/0x472 [ 63.587430][ T7438] ? generic_xdp_install+0x3d0/0x3d0 [ 63.592688][ T7438] ? trace_hardirqs_off+0x41/0x180 [ 63.597766][ T7438] ? kasan_check_read+0x11/0x20 [ 63.602593][ T7438] ? mark_held_locks+0xb8/0x130 [ 63.607425][ T7438] ? kernfs_put+0x28b/0x4d0 [ 63.611893][ T7438] ? kernfs_put+0x28b/0x4d0 [ 63.616369][ T7438] rollback_registered+0xdc/0x190 [ 63.621361][ T7438] ? rollback_registered_many+0xce0/0xce0 [ 63.627052][ T7438] ? kernfs_put+0x29d/0x4d0 [ 63.631527][ T7438] unregister_netdevice_queue+0x186/0x240 [ 63.637216][ T7438] br_dev_delete+0x127/0x190 [ 63.641776][ T7438] br_del_bridge+0x9a/0xe0 [ 63.646184][ T7438] br_ioctl_deviceless_stub+0x21f/0x640 [ 63.651702][ T7438] ? old_dev_ioctl.isra.2+0x1340/0x1340 [ 63.657243][ T7438] sock_ioctl+0x367/0x600 [ 63.661544][ T7438] ? tomoyo_execute_permission+0x460/0x460 [ 63.667328][ T7438] ? dlci_ioctl_set+0x30/0x30 [ 63.672063][ T7438] do_vfs_ioctl+0x196/0x10c0 [ 63.676623][ T7438] ? ioctl_preallocate+0x1c0/0x1c0 [ 63.681722][ T7438] ? __fget+0x2af/0x420 [ 63.685845][ T7438] ? ksys_dup3+0x2e0/0x2e0 [ 63.690230][ T7438] ? put_timespec64+0xa9/0x100 [ 63.694967][ T7438] ? nsecs_to_jiffies+0x20/0x20 [ 63.699785][ T7438] ? tomoyo_file_ioctl+0x14/0x20 [ 63.704690][ T7438] ksys_ioctl+0x62/0x90 [ 63.708819][ T7438] ? lockdep_hardirqs_on+0x424/0x5c0 [ 63.714075][ T7438] __x64_sys_ioctl+0x6e/0xb0 [ 63.718631][ T7438] do_syscall_64+0xd0/0x530 [ 63.723100][ T7438] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.728954][ T7438] RIP: 0033:0x4597c9 [ 63.732814][ T7438] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.752390][ T7438] RSP: 002b:00007fdb66831c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 63.760772][ T7438] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004597c9 [ 63.768715][ T7438] RDX: 0000000020000180 RSI: 00000000000089a1 RDI: 0000000000000003 [ 63.776655][ T7438] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 63.784597][ T7438] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdb668326d4 [ 63.792544][ T7438] R13: 00000000004c50fb R14: 00000000004d9308 R15: 00000000ffffffff