[ 45.833891] audit: type=1800 audit(1546153238.138:29): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 45.875691] audit: type=1800 audit(1546153238.148:30): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 48.776782] sshd (8134) used greatest stack depth: 15432 bytes left Warning: Permanently added '10.128.10.26' (ECDSA) to the list of known hosts. [ 88.637309] kauditd_printk_skb: 5 callbacks suppressed [ 88.637325] audit: type=1400 audit(1546153280.948:36): avc: denied { map } for pid=8148 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/12/30 07:01:21 parsed 1 programs [ 89.380812] audit: type=1400 audit(1546153281.688:37): avc: denied { map } for pid=8148 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=15410 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2018/12/30 07:01:23 executed programs: 0 [ 91.714456] IPVS: ftp: loaded support on port[0] = 21 [ 91.714765] IPVS: ftp: loaded support on port[0] = 21 [ 91.726009] IPVS: ftp: loaded support on port[0] = 21 [ 91.741859] IPVS: ftp: loaded support on port[0] = 21 [ 91.780505] IPVS: ftp: loaded support on port[0] = 21 [ 91.798658] IPVS: ftp: loaded support on port[0] = 21 [ 91.963775] chnl_net:caif_netlink_parms(): no params data found [ 91.988412] chnl_net:caif_netlink_parms(): no params data found [ 92.018761] chnl_net:caif_netlink_parms(): no params data found [ 92.130304] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.137548] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.144621] device bridge_slave_0 entered promiscuous mode [ 92.163846] chnl_net:caif_netlink_parms(): no params data found [ 92.180570] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.187791] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.194772] device bridge_slave_0 entered promiscuous mode [ 92.201549] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.210343] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.217350] device bridge_slave_1 entered promiscuous mode [ 92.229384] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.236264] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.243207] device bridge_slave_0 entered promiscuous mode [ 92.251274] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.257672] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.264629] device bridge_slave_1 entered promiscuous mode [ 92.277742] chnl_net:caif_netlink_parms(): no params data found [ 92.293175] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.299844] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.306934] device bridge_slave_1 entered promiscuous mode [ 92.320766] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 92.355024] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 92.363738] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 92.375300] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 92.400272] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.406899] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.414070] device bridge_slave_0 entered promiscuous mode [ 92.421624] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 92.438254] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 92.460287] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.466952] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.473859] device bridge_slave_1 entered promiscuous mode [ 92.493196] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 92.500786] team0: Port device team_slave_0 added [ 92.506129] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.512475] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.519738] device bridge_slave_0 entered promiscuous mode [ 92.537940] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 92.545036] team0: Port device team_slave_0 added [ 92.554155] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 92.561319] team0: Port device team_slave_1 added [ 92.566660] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 92.573784] team0: Port device team_slave_1 added [ 92.579245] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.586581] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.592975] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.602562] device bridge_slave_1 entered promiscuous mode [ 92.618957] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 92.626325] team0: Port device team_slave_0 added [ 92.631590] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.638964] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 92.646278] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 92.662558] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 92.672236] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 92.680004] team0: Port device team_slave_1 added [ 92.703453] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 92.714606] chnl_net:caif_netlink_parms(): no params data found [ 92.723776] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 92.731829] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 92.789301] device hsr_slave_0 entered promiscuous mode [ 92.866079] device hsr_slave_1 entered promiscuous mode [ 92.959042] device hsr_slave_0 entered promiscuous mode [ 92.996040] device hsr_slave_1 entered promiscuous mode [ 93.067335] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 93.075237] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 93.088087] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 93.104089] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 93.111276] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 93.127924] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 93.156099] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 93.163317] team0: Port device team_slave_0 added [ 93.197251] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 93.204563] team0: Port device team_slave_1 added [ 93.258926] device hsr_slave_0 entered promiscuous mode [ 93.285840] device hsr_slave_1 entered promiscuous mode [ 93.326080] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 93.333474] team0: Port device team_slave_0 added [ 93.346393] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 93.353858] team0: Port device team_slave_1 added [ 93.359480] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 93.367241] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 93.374566] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 93.382507] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 93.404091] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 93.415842] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 93.424828] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 93.441783] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.448954] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.456213] device bridge_slave_0 entered promiscuous mode [ 93.463048] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.470710] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.477867] device bridge_slave_1 entered promiscuous mode [ 93.549129] device hsr_slave_0 entered promiscuous mode [ 93.585948] device hsr_slave_1 entered promiscuous mode [ 93.633768] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 93.649479] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 93.658570] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 93.678497] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 93.717476] device hsr_slave_0 entered promiscuous mode [ 93.755938] device hsr_slave_1 entered promiscuous mode [ 93.796913] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 93.804145] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 93.817789] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 93.835000] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 93.880026] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 93.888933] team0: Port device team_slave_0 added [ 93.900798] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 93.911792] team0: Port device team_slave_1 added [ 93.920841] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 93.938114] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 93.947343] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 93.953937] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 94.008779] device hsr_slave_0 entered promiscuous mode [ 94.055872] device hsr_slave_1 entered promiscuous mode [ 94.098321] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 94.119559] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 94.151046] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.192022] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.201611] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.217691] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 94.225115] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 94.236959] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 94.266193] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 94.273373] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 94.288504] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 94.297240] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.306800] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 94.320006] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.329271] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 94.342432] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.351594] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 94.359579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 94.366779] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.375084] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 94.386494] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 94.392559] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.402002] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 94.408273] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.418787] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 94.430224] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 94.436820] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.442901] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 94.450503] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.457744] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 94.465968] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.474147] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 94.482102] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 94.495136] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 94.505466] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 94.512290] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.518843] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 94.529793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 94.536816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 94.544543] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.552619] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.559149] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.567295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 94.574995] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.582839] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.589234] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.600015] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 94.606736] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.615168] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 94.625902] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 94.633250] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 94.640906] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 94.648123] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 94.656022] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.663558] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.669949] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.677654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 94.685361] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 94.693036] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.699386] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.707081] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 94.717352] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 94.725469] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 94.733729] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 94.742199] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.748598] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.756842] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 94.769084] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 94.779070] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 94.791277] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 94.799609] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 94.809157] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.817141] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.823493] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.830544] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 94.838319] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 94.846028] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.852381] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.859613] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 94.867563] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 94.875266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 94.882948] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.889299] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.897705] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 94.906656] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 94.918137] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 94.928646] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 94.936106] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 94.943302] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 94.950440] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 94.958639] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 94.966606] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.972931] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.980150] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 94.988232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 94.996245] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 95.003997] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.012508] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 95.023321] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 95.032756] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 95.051671] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 95.060770] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 95.069294] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 95.078010] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 95.086495] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.092832] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.100283] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 95.108389] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.118632] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 95.130548] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 95.144905] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 95.153549] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 95.161229] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 95.174198] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 95.182616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 95.190648] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.198466] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 95.209645] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 95.218065] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 95.228587] 8021q: adding VLAN 0 to HW filter on device bond0 [ 95.237850] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 95.248132] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 95.257053] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 95.265144] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 95.273478] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 95.282039] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 95.289774] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 95.297696] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 95.305400] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 95.313536] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.321572] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 95.331085] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 95.340476] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 95.349698] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 95.359309] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 95.366820] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 95.376557] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.384088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 95.391903] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 95.399509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 95.407607] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 95.415307] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.426735] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 95.441941] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 95.448531] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 95.458623] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 95.466588] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 95.474286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 95.482463] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 95.490197] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 95.497263] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 95.504066] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 95.512333] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.520481] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 95.532932] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 95.544034] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 95.554410] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 95.565052] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 95.574427] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 95.581883] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 95.590215] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 95.597887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 95.605695] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.613245] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 95.621388] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.629453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 95.637501] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.645028] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 95.652664] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 95.660416] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 95.675018] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 95.685151] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 95.691365] 8021q: adding VLAN 0 to HW filter on device team0 [ 95.703648] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 95.711318] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 95.719842] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 95.727799] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 95.736457] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 95.743988] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.750371] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.758705] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 95.764740] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 95.779064] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 95.787289] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 95.795422] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 95.805923] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 95.816013] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 95.825370] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 95.833679] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 95.841725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 95.849908] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 95.857500] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 95.864942] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 95.872449] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 95.880230] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 95.887951] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.894291] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.906442] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 95.916060] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 95.922089] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 95.933909] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 95.946438] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 95.955130] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 95.964998] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 95.973114] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 95.981340] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 95.989204] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 95.996979] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 96.004659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 96.012611] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 96.020314] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 96.029395] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 96.037408] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 96.043434] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.053955] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 96.062696] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.072644] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.087264] audit: type=1400 audit(1546153288.398:38): avc: denied { associate } for pid=8167 comm="syz-executor4" name="syz4" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 96.091329] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 96.135130] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 96.161551] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 96.179772] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.200686] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.213427] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 96.221855] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 96.240042] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.254914] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 96.273458] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 96.281786] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 96.289561] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 96.311236] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 96.344920] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.357449] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 96.370153] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 96.419946] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 96.439497] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.512898] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 96.566592] 8021q: adding VLAN 0 to HW filter on device batadv0 2018/12/30 07:01:29 executed programs: 6 [ 100.918936] [ 100.920601] ===================================================== [ 100.926816] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 100.933555] 4.20.0+ #176 Not tainted [ 100.937244] ----------------------------------------------------- [ 100.943463] syz-executor2/8369 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 100.950637] 000000003a8e3edf (&ctx->fd_wqh){....}, at: aio_poll+0x7ed/0x14a0 [ 100.958770] [ 100.958770] and this task is already holding: [ 100.964726] 00000000d7b1b581 (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll+0x7c5/0x14a0 [ 100.972963] which would create a new lock dependency: [ 100.978129] (&(&ctx->ctx_lock)->rlock){..-.} -> (&ctx->fd_wqh){....} [ 100.984709] [ 100.984709] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 100.992749] (&(&ctx->ctx_lock)->rlock){..-.} [ 100.992755] [ 100.992755] ... which became SOFTIRQ-irq-safe at: [ 101.003535] lock_acquire+0x1ed/0x520 [ 101.007418] _raw_spin_lock_irq+0x61/0x80 [ 101.011637] free_ioctx_users+0xbc/0x710 [ 101.015774] percpu_ref_switch_to_atomic_rcu+0x563/0x730 [ 101.021306] rcu_process_callbacks+0xc5b/0x1600 [ 101.026042] __do_softirq+0x30c/0xb2e [ 101.029912] irq_exit+0x17f/0x1c0 [ 101.033435] smp_apic_timer_interrupt+0x1cb/0x760 [ 101.038352] apic_timer_interrupt+0xf/0x20 [ 101.042663] native_safe_halt+0x6/0x10 [ 101.046629] default_idle+0xbf/0x490 [ 101.050419] arch_cpu_idle+0x10/0x20 [ 101.054217] default_idle_call+0x6d/0x90 [ 101.058350] do_idle+0x3db/0x5b0 [ 101.061793] cpu_startup_entry+0x18/0x20 [ 101.065934] start_secondary+0x447/0x5f0 [ 101.070074] secondary_startup_64+0xa4/0xb0 [ 101.074458] [ 101.074458] to a SOFTIRQ-irq-unsafe lock: [ 101.080056] (&ctx->fault_pending_wqh){+.+.} [ 101.080063] [ 101.080063] ... which became SOFTIRQ-irq-unsafe at: [ 101.090907] ... [ 101.090918] lock_acquire+0x1ed/0x520 [ 101.096650] _raw_spin_lock+0x2d/0x40 [ 101.100521] userfaultfd_release+0x63e/0x8d0 [ 101.104996] __fput+0x385/0xa50 [ 101.108341] ____fput+0x15/0x20 [ 101.111698] task_work_run+0x1e8/0x2a0 [ 101.115660] get_signal+0x1558/0x1980 [ 101.119529] do_signal+0x9c/0x21c0 [ 101.123161] exit_to_usermode_loop+0x2e5/0x380 [ 101.127818] do_syscall_64+0x6be/0x820 [ 101.131775] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.137027] [ 101.137027] other info that might help us debug this: [ 101.137027] [ 101.145140] Chain exists of: [ 101.145140] &(&ctx->ctx_lock)->rlock --> &ctx->fd_wqh --> &ctx->fault_pending_wqh [ 101.145140] [ 101.157258] Possible interrupt unsafe locking scenario: [ 101.157258] [ 101.164175] CPU0 CPU1 [ 101.168831] ---- ---- [ 101.173475] lock(&ctx->fault_pending_wqh); [ 101.177861] local_irq_disable(); [ 101.183891] lock(&(&ctx->ctx_lock)->rlock); [ 101.190947] lock(&ctx->fd_wqh); [ 101.196896] [ 101.199629] lock(&(&ctx->ctx_lock)->rlock); [ 101.204274] [ 101.204274] *** DEADLOCK *** [ 101.204274] [ 101.210313] 1 lock held by syz-executor2/8369: [ 101.214882] #0: 00000000d7b1b581 (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll+0x7c5/0x14a0 [ 101.223544] [ 101.223544] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 101.232531] -> (&(&ctx->ctx_lock)->rlock){..-.} { [ 101.237354] IN-SOFTIRQ-W at: [ 101.240628] lock_acquire+0x1ed/0x520 [ 101.246075] _raw_spin_lock_irq+0x61/0x80 [ 101.251860] free_ioctx_users+0xbc/0x710 [ 101.257572] percpu_ref_switch_to_atomic_rcu+0x563/0x730 [ 101.264664] rcu_process_callbacks+0xc5b/0x1600 [ 101.270963] __do_softirq+0x30c/0xb2e [ 101.276402] irq_exit+0x17f/0x1c0 [ 101.281495] smp_apic_timer_interrupt+0x1cb/0x760 [ 101.287986] apic_timer_interrupt+0xf/0x20 [ 101.293853] native_safe_halt+0x6/0x10 [ 101.299382] default_idle+0xbf/0x490 [ 101.304730] arch_cpu_idle+0x10/0x20 [ 101.310073] default_idle_call+0x6d/0x90 [ 101.315777] do_idle+0x3db/0x5b0 [ 101.320787] cpu_startup_entry+0x18/0x20 [ 101.326478] start_secondary+0x447/0x5f0 [ 101.332198] secondary_startup_64+0xa4/0xb0 [ 101.338147] INITIAL USE at: [ 101.341325] lock_acquire+0x1ed/0x520 [ 101.346668] _raw_spin_lock_irq+0x61/0x80 [ 101.352363] free_ioctx_users+0xbc/0x710 [ 101.357967] percpu_ref_switch_to_atomic_rcu+0x563/0x730 [ 101.364982] rcu_process_callbacks+0xc5b/0x1600 [ 101.371208] __do_softirq+0x30c/0xb2e [ 101.376554] irq_exit+0x17f/0x1c0 [ 101.381557] smp_apic_timer_interrupt+0x1cb/0x760 [ 101.387958] apic_timer_interrupt+0xf/0x20 [ 101.393744] native_safe_halt+0x6/0x10 [ 101.399191] default_idle+0xbf/0x490 [ 101.404464] arch_cpu_idle+0x10/0x20 [ 101.409724] default_idle_call+0x6d/0x90 [ 101.415329] do_idle+0x3db/0x5b0 [ 101.420245] cpu_startup_entry+0x18/0x20 [ 101.425856] start_secondary+0x447/0x5f0 [ 101.431481] secondary_startup_64+0xa4/0xb0 [ 101.437349] } [ 101.439150] ... key at: [] __key.51946+0x0/0x40 [ 101.445901] ... acquired at: [ 101.448997] lock_acquire+0x1ed/0x520 [ 101.452951] _raw_spin_lock+0x2d/0x40 [ 101.456916] aio_poll+0x7ed/0x14a0 [ 101.460619] io_submit_one+0xc20/0x1070 [ 101.464749] __x64_sys_io_submit+0x1bd/0x5c0 [ 101.469312] do_syscall_64+0x1b9/0x820 [ 101.473358] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.478695] [ 101.480316] [ 101.480316] the dependencies between the lock to be acquired [ 101.480319] and SOFTIRQ-irq-unsafe lock: [ 101.491691] -> (&ctx->fault_pending_wqh){+.+.} { [ 101.496530] HARDIRQ-ON-W at: [ 101.499878] lock_acquire+0x1ed/0x520 [ 101.505486] _raw_spin_lock+0x2d/0x40 [ 101.511102] userfaultfd_release+0x63e/0x8d0 [ 101.517317] __fput+0x385/0xa50 [ 101.522399] ____fput+0x15/0x20 [ 101.527485] task_work_run+0x1e8/0x2a0 [ 101.533175] get_signal+0x1558/0x1980 [ 101.538791] do_signal+0x9c/0x21c0 [ 101.544139] exit_to_usermode_loop+0x2e5/0x380 [ 101.550528] do_syscall_64+0x6be/0x820 [ 101.556224] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.563213] SOFTIRQ-ON-W at: [ 101.566562] lock_acquire+0x1ed/0x520 [ 101.572167] _raw_spin_lock+0x2d/0x40 [ 101.577796] userfaultfd_release+0x63e/0x8d0 [ 101.584032] __fput+0x385/0xa50 [ 101.589114] ____fput+0x15/0x20 [ 101.594215] task_work_run+0x1e8/0x2a0 [ 101.599915] get_signal+0x1558/0x1980 [ 101.605552] do_signal+0x9c/0x21c0 [ 101.610905] exit_to_usermode_loop+0x2e5/0x380 [ 101.617290] do_syscall_64+0x6be/0x820 [ 101.622982] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.629974] INITIAL USE at: [ 101.633249] lock_acquire+0x1ed/0x520 [ 101.638774] _raw_spin_lock+0x2d/0x40 [ 101.644291] userfaultfd_ctx_read+0x6b7/0x2140 [ 101.650587] userfaultfd_read+0x1e2/0x2c0 [ 101.656455] __vfs_read+0x117/0xa80 [ 101.661799] vfs_read+0x17f/0x3e0 [ 101.666966] ksys_read+0x101/0x260 [ 101.672230] __x64_sys_read+0x73/0xb0 [ 101.677773] do_syscall_64+0x1b9/0x820 [ 101.683405] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.690308] } [ 101.692205] ... key at: [] __key.44845+0x0/0x40 [ 101.699046] ... acquired at: [ 101.702230] _raw_spin_lock+0x2d/0x40 [ 101.706202] userfaultfd_ctx_read+0x6b7/0x2140 [ 101.710953] userfaultfd_read+0x1e2/0x2c0 [ 101.715258] __vfs_read+0x117/0xa80 [ 101.719047] vfs_read+0x17f/0x3e0 [ 101.722665] ksys_read+0x101/0x260 [ 101.726358] __x64_sys_read+0x73/0xb0 [ 101.730333] do_syscall_64+0x1b9/0x820 [ 101.734379] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.739729] [ 101.741335] -> (&ctx->fd_wqh){....} { [ 101.745140] INITIAL USE at: [ 101.748329] lock_acquire+0x1ed/0x520 [ 101.753699] _raw_spin_lock_irq+0x61/0x80 [ 101.759424] userfaultfd_ctx_read+0x2bc/0x2140 [ 101.765547] userfaultfd_read+0x1e2/0x2c0 [ 101.771238] __vfs_read+0x117/0xa80 [ 101.776406] vfs_read+0x17f/0x3e0 [ 101.781403] ksys_read+0x101/0x260 [ 101.786486] __x64_sys_read+0x73/0xb0 [ 101.791834] do_syscall_64+0x1b9/0x820 [ 101.797303] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.804033] } [ 101.805823] ... key at: [] __key.44848+0x0/0x40 [ 101.812588] ... acquired at: [ 101.815681] lock_acquire+0x1ed/0x520 [ 101.819644] _raw_spin_lock+0x2d/0x40 [ 101.823602] aio_poll+0x7ed/0x14a0 [ 101.827308] io_submit_one+0xc20/0x1070 [ 101.831451] __x64_sys_io_submit+0x1bd/0x5c0 [ 101.836018] do_syscall_64+0x1b9/0x820 [ 101.840088] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 101.845442] [ 101.847054] [ 101.847054] stack backtrace: [ 101.851538] CPU: 1 PID: 8369 Comm: syz-executor2 Not tainted 4.20.0+ #176 [ 101.858445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.867788] Call Trace: [ 101.870376] dump_stack+0x1d3/0x2c6 [ 101.873996] ? dump_stack_print_info.cold.1+0x20/0x20 [ 101.879224] ? print_shortest_lock_dependencies.cold.57+0x18e/0x211 [ 101.885625] ? vprintk_func+0x85/0x181 [ 101.889504] check_usage.cold.60+0x6d5/0xad1 [ 101.893906] ? check_usage_forwards+0x3d0/0x3d0 [ 101.898570] ? lockdep_on+0x50/0x50 [ 101.902200] ? mark_held_locks+0x130/0x130 [ 101.906619] ? __lock_acquire+0x62f/0x4c20 [ 101.910845] ? add_lock_to_list.isra.26+0x4b0/0x4b0 [ 101.915854] __lock_acquire+0x239f/0x4c20 [ 101.919992] ? __lock_acquire+0x239f/0x4c20 [ 101.924321] ? mark_held_locks+0x130/0x130 [ 101.928556] ? graph_lock+0x270/0x270 [ 101.932360] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 101.937455] ? find_held_lock+0x36/0x1c0 [ 101.941508] ? add_wait_queue+0x1b9/0x2b0 [ 101.945650] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 101.950747] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 101.955841] ? lockdep_hardirqs_on+0x421/0x5c0 [ 101.960416] ? trace_hardirqs_on+0xbd/0x310 [ 101.964730] ? kasan_check_read+0x11/0x20 [ 101.968869] ? add_wait_queue+0x1b9/0x2b0 [ 101.973008] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 101.978492] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 101.983585] ? add_wait_queue+0x1b9/0x2b0 [ 101.987730] ? __wake_up_locked_key_bookmark+0x20/0x20 [ 101.993000] lock_acquire+0x1ed/0x520 [ 101.996799] ? aio_poll+0x7ed/0x14a0 [ 102.000510] ? lock_release+0xa00/0xa00 [ 102.004477] ? kasan_check_read+0x11/0x20 [ 102.008615] ? do_raw_spin_lock+0x14f/0x350 [ 102.012938] ? init_once_userfaultfd_ctx+0xd0/0xd0 [ 102.017870] ? rwlock_bug.part.2+0x90/0x90 [ 102.022099] ? trace_hardirqs_on+0x310/0x310 [ 102.026506] ? __save_stack_trace+0x8d/0xf0 [ 102.030840] _raw_spin_lock+0x2d/0x40 [ 102.034633] ? aio_poll+0x7ed/0x14a0 [ 102.038336] aio_poll+0x7ed/0x14a0 [ 102.041869] ? free_ioctx_users+0x710/0x710 [ 102.046243] ? kasan_slab_alloc+0x12/0x20 [ 102.050392] ? aio_setup_rw+0x170/0x170 [ 102.054370] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.059728] ? graph_lock+0x270/0x270 [ 102.063517] ? graph_lock+0x270/0x270 [ 102.067319] ? find_held_lock+0x36/0x1c0 [ 102.071385] ? find_held_lock+0x36/0x1c0 [ 102.075439] ? __might_fault+0x12b/0x1e0 [ 102.079489] ? lock_downgrade+0x900/0x900 [ 102.083625] ? lock_release+0xa00/0xa00 [ 102.087589] ? arch_local_save_flags+0x40/0x40 [ 102.092221] ? kasan_check_read+0x11/0x20 [ 102.096365] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 102.101635] io_submit_one+0xc20/0x1070 [ 102.105598] ? io_submit_one+0xc20/0x1070 [ 102.109738] ? aio_poll+0x14a0/0x14a0 [ 102.113535] ? __might_fault+0x12b/0x1e0 [ 102.117587] ? lock_downgrade+0x900/0x900 [ 102.121732] ? arch_local_save_flags+0x40/0x40 [ 102.126317] __x64_sys_io_submit+0x1bd/0x5c0 [ 102.130728] ? __ia32_sys_io_destroy+0x580/0x580 [ 102.135490] ? do_syscall_64+0x9a/0x820 [ 102.139466] ? lockdep_hardirqs_on+0x421/0x5c0 [ 102.144039] ? trace_hardirqs_on+0xbd/0x310 [ 102.148358] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 102.153888] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.159251] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 102.164710] do_syscall_64+0x1b9/0x820 [ 102.168587] ? __ia32_sys_io_destroy+0x580/0x580 [ 102.173333] ? do_syscall_64+0x1b9/0x820 [ 102.177390] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 102.182749] ? syscall_return_slowpath+0x5e0/0x5e0 [ 102.187677] ? trace_hardirqs_on_caller+0x310/0x310 [ 102.192719] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 102.197728] ? recalc_sigpending_tsk+0x180/0x180 [ 102.202481] ? __switch_to_asm+0x40/0x70 [ 102.206533] ? __switch_to_asm+0x34/0x70 [ 102.210591] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 102.215469] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 102.220661] RIP: 0033:0x457ec9 [ 102.223848] Code: 6d 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 102.242741] RSP: 002b:00007f7963f2ec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 102.250478] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 102.257739] RDX: 0000000020000600 RSI: 0000000000000001 RDI: 00007f7963f72000 [ 102.264996] RBP: 000000000073c180 R08: 0000000000000000 R09: 0000000000000000 2018/12/30 07:01:34 executed programs: 30 [ 102.272256] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7963f2f6d4 [ 102.279519] R13: 00000000004bf0d2 R14: 00000000004d0388 R15: 00000000ffffffff [ 102.309990] kobject: 'loop4' (00000000e01d6d42): kobject_uevent_env [ 102.316540] kobject: 'loop4' (00000000e01d6d42): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 102.363210] kobject: 'loop5' (00000000b8423745): kobject_uevent_env [ 102.374710] kobject: 'loop5' (00000000b8423745): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 102.384694] kobject: 'loop1' (0000000016f50f37): kobject_uevent_env [ 102.394030] kobject: 'loop1' (0000000016f50f37): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 102.418435] kobject: 'loop2' (00000000882527b4): kobject_uevent_env [ 102.427210] kobject: 'loop2' (00000000882527b4): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 102.437296] kobject: 'loop0' (00000000c528b0aa): kobject_uevent_env [ 102.443801] kobject: 'loop0' (00000000c528b0aa): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 102.453681] kobject: 'loop3' (00000000fa6ec5e7): kobject_uevent_env [ 102.460690] kobject: 'loop3' (00000000fa6ec5e7): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 103.238930] kobject: 'loop4' (00000000e01d6d42): kobject_uevent_env [ 103.246953] kobject: 'loop4' (00000000e01d6d42): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 103.285411] kobject: 'loop2' (00000000882527b4): kobject_uevent_env [ 103.293287] kobject: 'loop2' (00000000882527b4): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 103.303643] kobject: 'loop5' (00000000b8423745): kobject_uevent_env [ 103.310281] kobject: 'loop5' (00000000b8423745): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 103.320772] kobject: 'loop1' (0000000016f50f37): kobject_uevent_env [ 103.329601] kobject: 'loop1' (0000000016f50f37): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 103.347618] kobject: 'loop0' (00000000c528b0aa): kobject_uevent_env [ 103.354088] kobject: 'loop0' (00000000c528b0aa): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 103.369812] kobject: 'loop3' (00000000fa6ec5e7): kobject_uevent_env [ 103.379562] kobject: 'loop3' (00000000fa6ec5e7): fill_kobj_path: path =