syzkaller login: [ 55.072699][ T26] audit: type=1400 audit(1578902294.292:41): avc: denied { map } for pid=8344 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 61.482342][ T26] audit: type=1400 audit(1578902300.702:42): avc: denied { map } for pid=8353 comm="syz-fuzzer" path="/root/syz-fuzzer" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 62.410461][ T8371] IPVS: ftp: loaded support on port[0] = 21 [ 62.713374][ T3902] tipc: TX() has been purged, node left! [ 62.924754][ T8359] can: request_module (can-proto-0) failed. [ 65.696289][ T8359] can: request_module (can-proto-0) failed. [ 65.706664][ T8359] can: request_module (can-proto-0) failed. [ 65.885468][ T26] audit: type=1400 audit(1578902305.112:43): avc: denied { create } for pid=8353 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 [ 65.909790][ T26] audit: type=1400 audit(1578902305.112:44): avc: denied { create } for pid=8353 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 65.934069][ T26] audit: type=1400 audit(1578902305.112:45): avc: denied { create } for pid=8353 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 Warning: Permanently added '10.128.0.117' (ECDSA) to the list of known hosts. 2020/01/13 07:58:31 parsed 1 programs 2020/01/13 07:58:32 executed programs: 0 [ 73.407697][ T8450] IPVS: ftp: loaded support on port[0] = 21 [ 73.407708][ T8454] IPVS: ftp: loaded support on port[0] = 21 [ 73.423956][ T8456] IPVS: ftp: loaded support on port[0] = 21 [ 73.432078][ T8457] IPVS: ftp: loaded support on port[0] = 21 [ 73.439463][ T8451] IPVS: ftp: loaded support on port[0] = 21 [ 73.449318][ T8448] IPVS: ftp: loaded support on port[0] = 21 [ 73.626064][ T8454] chnl_net:caif_netlink_parms(): no params data found [ 73.705332][ T8454] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.712461][ T8454] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.720622][ T8454] device bridge_slave_0 entered promiscuous mode [ 73.762585][ T8448] chnl_net:caif_netlink_parms(): no params data found [ 73.778333][ T8454] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.785531][ T8454] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.793077][ T8454] device bridge_slave_1 entered promiscuous mode [ 73.800720][ T8456] chnl_net:caif_netlink_parms(): no params data found [ 73.815542][ T8450] chnl_net:caif_netlink_parms(): no params data found [ 73.868913][ T8456] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.876078][ T8456] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.883812][ T8456] device bridge_slave_0 entered promiscuous mode [ 73.892771][ T8456] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.899924][ T8456] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.907636][ T8456] device bridge_slave_1 entered promiscuous mode [ 73.916812][ T8454] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.935124][ T8457] chnl_net:caif_netlink_parms(): no params data found [ 73.975177][ T8454] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.039235][ T8456] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.048488][ T8448] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.056691][ T8448] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.064552][ T8448] device bridge_slave_0 entered promiscuous mode [ 74.071678][ T8450] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.079168][ T8450] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.086898][ T8450] device bridge_slave_0 entered promiscuous mode [ 74.099507][ T8450] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.106839][ T8450] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.117064][ T8450] device bridge_slave_1 entered promiscuous mode [ 74.124282][ T8457] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.131322][ T8457] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.139191][ T8457] device bridge_slave_0 entered promiscuous mode [ 74.149664][ T8457] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.166604][ T8457] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.174473][ T8457] device bridge_slave_1 entered promiscuous mode [ 74.182137][ T8456] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.191704][ T8448] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.199205][ T8448] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.207022][ T8448] device bridge_slave_1 entered promiscuous mode [ 74.216363][ T8454] team0: Port device team_slave_0 added [ 74.231553][ T8451] chnl_net:caif_netlink_parms(): no params data found [ 74.255786][ T8454] team0: Port device team_slave_1 added [ 74.262820][ T8450] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.274855][ T8450] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.306077][ T8456] team0: Port device team_slave_0 added [ 74.319266][ T8457] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.333443][ T8457] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.343725][ T8448] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.358158][ T8448] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.369203][ T8456] team0: Port device team_slave_1 added [ 74.391383][ T8450] team0: Port device team_slave_0 added [ 74.427859][ T8450] team0: Port device team_slave_1 added [ 74.476589][ T8454] device hsr_slave_0 entered promiscuous mode [ 74.514487][ T8454] device hsr_slave_1 entered promiscuous mode [ 74.565767][ T8457] team0: Port device team_slave_0 added [ 74.615048][ T8456] device hsr_slave_0 entered promiscuous mode [ 74.673838][ T8456] device hsr_slave_1 entered promiscuous mode [ 74.723484][ T8456] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 74.731250][ T8456] Cannot create hsr debugfs directory [ 74.736865][ T8451] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.744070][ T8451] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.751673][ T8451] device bridge_slave_0 entered promiscuous mode [ 74.760380][ T8451] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.767919][ T8451] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.776445][ T8451] device bridge_slave_1 entered promiscuous mode [ 74.784826][ T8448] team0: Port device team_slave_0 added [ 74.805640][ T8457] team0: Port device team_slave_1 added [ 74.831062][ T8448] team0: Port device team_slave_1 added [ 74.845170][ T8451] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.883108][ T26] audit: type=1400 audit(1578902314.102:46): avc: denied { write } for pid=8454 comm="syz-executor.4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 74.914156][ T8451] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.923526][ T8454] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 74.930955][ T26] audit: type=1400 audit(1578902314.142:47): avc: denied { read } for pid=8454 comm="syz-executor.4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 74.998421][ T8454] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 75.106095][ T8450] device hsr_slave_0 entered promiscuous mode [ 75.143699][ T8450] device hsr_slave_1 entered promiscuous mode [ 75.183442][ T8450] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.191004][ T8450] Cannot create hsr debugfs directory [ 75.265151][ T8448] device hsr_slave_0 entered promiscuous mode [ 75.303654][ T8448] device hsr_slave_1 entered promiscuous mode [ 75.343329][ T8448] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.350882][ T8448] Cannot create hsr debugfs directory [ 75.362319][ T8456] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 75.425583][ T8454] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 75.535403][ T8457] device hsr_slave_0 entered promiscuous mode [ 75.583787][ T8457] device hsr_slave_1 entered promiscuous mode [ 75.623619][ T8457] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 75.631176][ T8457] Cannot create hsr debugfs directory [ 75.642960][ T8456] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 75.685728][ T8456] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 75.724693][ T8454] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 75.777349][ T8451] team0: Port device team_slave_0 added [ 75.786941][ T8456] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 75.888426][ T8451] team0: Port device team_slave_1 added [ 75.917763][ T8450] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 75.985143][ T8457] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 76.040637][ T8448] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 76.085694][ T8450] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 76.125248][ T8457] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 76.205119][ T8451] device hsr_slave_0 entered promiscuous mode [ 76.253747][ T8451] device hsr_slave_1 entered promiscuous mode [ 76.293539][ T8451] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 76.301108][ T8451] Cannot create hsr debugfs directory [ 76.315790][ T8448] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 76.365183][ T8450] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 76.414827][ T8457] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 76.458085][ T8457] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 76.509245][ T8448] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 76.565173][ T8450] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 76.618075][ T8448] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 76.718714][ T8451] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.759721][ T8451] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.818806][ T8451] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.875617][ T8451] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.969025][ T8454] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.992645][ T8448] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.008625][ T8456] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.037419][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.049492][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.057909][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.067056][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.076786][ T8448] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.086721][ T8456] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.099869][ T8457] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.119834][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.130016][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.139046][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.148548][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.157202][ T2927] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.164411][ T2927] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.175042][ T2927] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.193967][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.203050][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.212484][ T2640] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.219581][ T2640] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.227496][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.236417][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.245038][ T2640] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.252072][ T2640] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.259990][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.268564][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.276887][ T2640] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.283941][ T2640] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.291429][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.299854][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.308258][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.316900][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.326507][ T8454] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.333623][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.349691][ T8457] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.373349][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.380962][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.389472][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.401647][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.410313][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.418978][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.427650][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.436157][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.444507][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.452902][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.461560][ T2741] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.468680][ T2741] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.476230][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.484751][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.493102][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.500777][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.508392][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.537771][ T8450] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.545050][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.554461][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.562712][ T2640] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.569775][ T2640] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.578497][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.587131][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.595478][ T2640] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.602503][ T2640] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.610215][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.618543][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.627582][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.636256][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.644435][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 77.652748][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.661124][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 77.669168][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.686281][ T8448] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.705104][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.717749][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.726610][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.735423][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.744280][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.752580][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.761206][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 77.770060][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.778557][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.787414][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.796095][ T2746] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.803128][ T2746] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.814389][ T8451] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.825832][ T8454] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.839981][ T8454] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.860021][ T8450] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.871417][ T8456] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.882738][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.890742][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.900054][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.908242][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 77.916378][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.925032][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.933438][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.941015][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.948888][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.996870][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.006304][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.014065][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.021445][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.029999][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.038811][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.047472][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.056197][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.064906][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.073431][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.081682][ T2640] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.088750][ T2640] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.096877][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.105603][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.113838][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.121183][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.128599][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.136869][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.146534][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.154589][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.162276][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.171077][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.180620][ T2640] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.187694][ T2640] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.197996][ T8454] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.209713][ T8451] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.221620][ T8456] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.247302][ T8448] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.257956][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.267453][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.276196][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.286494][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.295764][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.304666][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.312830][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.321264][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.332396][ T8457] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.353606][ T26] audit: type=1400 audit(1578902317.572:48): avc: denied { associate } for pid=8448 comm="syz-executor.3" name="syz3" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 78.379895][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.388786][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.397699][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.406528][ T2706] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.413621][ T2706] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.421839][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.431269][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.440206][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.454372][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.462808][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.471728][ T2640] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.478826][ T2640] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.492684][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.501234][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.516855][ T8450] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.564611][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.580108][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.590132][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.602228][ T8457] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.622251][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.637456][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.648518][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready 2020/01/13 07:58:37 executed programs: 6 [ 78.680562][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.694866][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.711003][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.761760][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.788262][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.816711][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.829626][ T2752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.850060][ T8451] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.872238][ T8451] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.889074][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.902352][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.952610][ T8450] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.029148][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.039435][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.065671][ T8451] 8021q: adding VLAN 0 to HW filter on device batadv0 2020/01/13 07:58:42 executed programs: 111 [ 85.539493][T10209] [ 85.541839][T10209] ===================================== [ 85.547375][T10209] WARNING: bad unlock balance detected! [ 85.552893][T10209] 5.5.0-rc6-syzkaller #0 Not tainted [ 85.556785][ T4292] kobject: 'loop0' (000000007727f11c): kobject_uevent_env [ 85.558148][T10209] ------------------------------------- [ 85.558151][T10209] syz-executor.5/10209 is trying to release lock (&file->mut) at: [ 85.558165][T10209] [] ucma_destroy_id+0x23e/0x400 [ 85.558169][T10209] but there are no more locks to release! [ 85.572981][ T4292] kobject: 'loop0' (000000007727f11c): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 85.578566][T10209] [ 85.578566][T10209] other info that might help us debug this: [ 85.578571][T10209] 1 lock held by syz-executor.5/10209: [ 85.578573][T10209] #0: ffff88809f5b1260 (&file->mut){+.+.}, at: ucma_destroy_id+0x1de/0x400 [ 85.578590][T10209] [ 85.578590][T10209] stack backtrace: [ 85.578595][T10209] CPU: 0 PID: 10209 Comm: syz-executor.5 Not tainted 5.5.0-rc6-syzkaller #0 [ 85.578598][T10209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.578600][T10209] Call Trace: [ 85.578612][T10209] dump_stack+0x12d/0x187 [ 85.578616][T10209] ? ucma_destroy_id+0x23e/0x400 [ 85.578624][T10209] print_unlock_imbalance_bug.cold.53+0x114/0x123 [ 85.578628][T10209] lock_release+0x60e/0x910 [ 85.578632][T10209] ? ucma_destroy_id+0x23e/0x400 [ 85.578635][T10209] ? lock_downgrade+0x900/0x900 [ 85.578645][T10209] __mutex_unlock_slowpath+0x86/0x690 [ 85.578649][T10209] ? wait_for_completion+0x460/0x460 [ 85.578654][T10209] mutex_unlock+0xd/0x10 [ 85.578657][T10209] ucma_destroy_id+0x23e/0x400 [ 85.578660][T10209] ? ucma_close+0x2d0/0x2d0 [ 85.578667][T10209] ? __kasan_check_write+0x14/0x20 [ 85.578671][T10209] ucma_write+0x203/0x2d0 [ 85.578679][T10209] ? selinux_file_permission+0x34d/0x430 [ 85.578687][T10209] ? ucma_open+0x250/0x250 [ 85.724195][T10209] ? security_file_permission+0x4c/0x290 [ 85.729814][T10209] __vfs_write+0x5e/0x110 [ 85.734140][T10209] vfs_write+0x18a/0x520 [ 85.738373][T10209] ksys_write+0x197/0x220 [ 85.740284][ T4292] kobject: 'loop1' (00000000ac0c6ed6): kobject_uevent_env [ 85.742688][T10209] ? __ia32_sys_read+0xa0/0xa0 [ 85.754541][T10209] ? do_syscall_64+0x21/0x5f0 [ 85.757383][ T4292] kobject: 'loop1' (00000000ac0c6ed6): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 85.759210][T10209] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.759219][T10209] __x64_sys_write+0x6e/0xb0 [ 85.759226][T10209] do_syscall_64+0xca/0x5f0 [ 85.759231][T10209] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.759238][T10209] RIP: 0033:0x45a679 [ 85.791301][ T4292] kobject: 'loop3' (00000000105c0fca): kobject_uevent_env [ 85.794197][T10209] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 85.794200][T10209] RSP: 002b:00007f2889d0ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.794205][T10209] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a679 [ 85.794207][T10209] RDX: 0000000000000018 RSI: 0000000020000140 RDI: 0000000000000003 [ 85.794210][T10209] RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 [ 85.794212][T10209] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2889d0f6d4 [ 85.794215][T10209] R13: 00000000004d2b38 R14: 00000000004e3be0 R15: 00000000ffffffff [ 85.805265][T10209] ================================================================== [ 85.842066][ T4292] kobject: 'loop3' (00000000105c0fca): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 85.845282][T10209] BUG: KASAN: use-after-free in ucma_destroy_id+0x3ca/0x400 [ 85.845287][T10209] Read of size 8 at addr ffff88809ff4c668 by task syz-executor.5/10209 [ 85.845289][T10209] [ 85.845295][T10209] CPU: 0 PID: 10209 Comm: syz-executor.5 Not tainted 5.5.0-rc6-syzkaller #0 [ 85.845298][T10209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.845300][T10209] Call Trace: [ 85.845311][T10209] dump_stack+0x12d/0x187 [ 85.845321][T10209] print_address_description.constprop.8.cold.10+0x9/0x31d [ 85.845324][T10209] ? ucma_destroy_id+0x3ca/0x400 [ 85.845329][T10209] __kasan_report.cold.11+0x1b/0x3a [ 85.845332][T10209] ? ucma_destroy_id+0x3ca/0x400 [ 85.845338][T10209] ? ucma_destroy_id+0x3ca/0x400 [ 85.880353][ T4292] kobject: 'loop2' (00000000f4117ba2): kobject_uevent_env [ 85.887358][T10209] kasan_report+0x12/0x20 [ 85.887366][T10209] __asan_report_load8_noabort+0x14/0x20 [ 85.887373][T10209] ucma_destroy_id+0x3ca/0x400 [ 85.887377][T10209] ? ucma_close+0x2d0/0x2d0 [ 85.887384][T10209] ? __kasan_check_write+0x14/0x20 [ 85.887389][T10209] ucma_write+0x203/0x2d0 [ 85.887397][T10209] ? selinux_file_permission+0x34d/0x430 [ 85.887401][T10209] ? ucma_open+0x250/0x250 [ 85.887408][T10209] ? security_file_permission+0x4c/0x290 [ 85.887417][T10209] __vfs_write+0x5e/0x110 [ 85.914656][ T4292] kobject: 'loop2' (00000000f4117ba2): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 85.923990][T10209] vfs_write+0x18a/0x520 [ 85.923997][T10209] ksys_write+0x197/0x220 [ 85.924002][T10209] ? __ia32_sys_read+0xa0/0xa0 [ 85.924010][T10209] ? do_syscall_64+0x21/0x5f0 [ 85.924018][T10209] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.924024][T10209] __x64_sys_write+0x6e/0xb0 [ 85.924028][T10209] do_syscall_64+0xca/0x5f0 [ 85.924033][T10209] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 85.924038][T10209] RIP: 0033:0x45a679 [ 85.924044][T10209] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 85.924046][T10209] RSP: 002b:00007f2889d0ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.985547][ T4292] kobject: 'loop1' (00000000ac0c6ed6): kobject_uevent_env [ 85.990141][T10209] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a679 [ 86.004708][ T4292] kobject: 'loop1' (00000000ac0c6ed6): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 86.010039][T10209] RDX: 0000000000000018 RSI: 0000000020000140 RDI: 0000000000000003 [ 86.010042][T10209] RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 [ 86.010044][T10209] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2889d0f6d4 [ 86.010047][T10209] R13: 00000000004d2b38 R14: 00000000004e3be0 R15: 00000000ffffffff [ 86.010056][T10209] [ 86.010060][T10209] Allocated by task 10185: [ 86.010072][T10209] save_stack+0x21/0x90 [ 86.010078][T10209] __kasan_kmalloc.constprop.13+0xc7/0xd0 [ 86.040953][ T4292] kobject: 'loop3' (00000000105c0fca): kobject_uevent_env [ 86.042441][T10209] kasan_kmalloc+0x9/0x10 [ 86.042446][T10209] kmem_cache_alloc_trace+0x15b/0x780 [ 86.042453][T10209] ucma_alloc_ctx+0x4c/0x430 [ 86.042456][T10209] ucma_create_id+0xeb/0x550 [ 86.042459][T10209] ucma_write+0x203/0x2d0 [ 86.042464][T10209] __vfs_write+0x5e/0x110 [ 86.042470][T10209] vfs_write+0x18a/0x520 [ 86.065518][ T4292] kobject: 'loop3' (00000000105c0fca): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 86.067298][T10209] ksys_write+0x197/0x220 [ 86.067303][T10209] __x64_sys_write+0x6e/0xb0 [ 86.067310][T10209] do_syscall_64+0xca/0x5f0 [ 86.067317][T10209] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.067322][T10209] [ 86.134218][ T4292] kobject: 'loop2' (00000000f4117ba2): kobject_uevent_env [ 86.136365][T10209] Freed by task 10170: [ 86.136377][T10209] save_stack+0x21/0x90 [ 86.136382][T10209] __kasan_slab_free+0x102/0x150 [ 86.136385][T10209] kasan_slab_free+0xe/0x10 [ 86.136388][T10209] kfree+0x108/0x2c0 [ 86.136394][T10209] ucma_free_ctx+0x7a0/0xd50 [ 86.136400][T10209] ucma_close+0x109/0x2d0 [ 86.155889][ T4292] kobject: 'loop2' (00000000f4117ba2): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 86.159017][T10209] __fput+0x25a/0x770 [ 86.159021][T10209] ____fput+0x9/0x10 [ 86.159029][T10209] task_work_run+0x108/0x180 [ 86.159036][T10209] exit_to_usermode_loop+0x24e/0x2e0 [ 86.159041][T10209] do_syscall_64+0x4ff/0x5f0 [ 86.200443][ T4292] kobject: 'loop3' (00000000105c0fca): kobject_uevent_env [ 86.203396][T10209] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.203398][T10209] [ 86.203402][T10209] The buggy address belongs to the object at ffff88809ff4c600 [ 86.203402][T10209] which belongs to the cache kmalloc-256 of size 256 [ 86.203405][T10209] The buggy address is located 104 bytes inside of [ 86.203405][T10209] 256-byte region [ffff88809ff4c600, ffff88809ff4c700) [ 86.203407][T10209] The buggy address belongs to the page: [ 86.203412][T10209] page:ffffea00027fd300 refcount:1 mapcount:0 mapping:ffff8880aa4008c0 index:0x0 [ 86.203418][T10209] raw: 00fffe0000000200 ffffea0002959a48 ffffea00028e1988 ffff8880aa4008c0 [ 86.203422][T10209] raw: 0000000000000000 ffff88809ff4c000 0000000100000008 0000000000000000 [ 86.203424][T10209] page dumped because: kasan: bad access detected [ 86.203426][T10209] [ 86.203427][T10209] Memory state around the buggy address: [ 86.203431][T10209] ffff88809ff4c500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 86.203434][T10209] ffff88809ff4c580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 86.203438][T10209] >ffff88809ff4c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 86.203440][T10209] ^ [ 86.203442][T10209] ffff88809ff4c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 86.203445][T10209] ffff88809ff4c700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 86.203447][T10209] ================================================================== [ 86.220125][T10209] Kernel panic - not syncing: panic_on_warn set ... [ 86.230855][ T4292] kobject: 'loop3' (00000000105c0fca): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 86.231303][T10209] CPU: 0 PID: 10209 Comm: syz-executor.5 Tainted: G B 5.5.0-rc6-syzkaller #0 [ 86.241137][ T4292] kobject: 'loop4' (00000000a11e96af): kobject_uevent_env [ 86.246555][T10209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.246558][T10209] Call Trace: [ 86.246580][T10209] dump_stack+0x12d/0x187 [ 86.246588][T10209] ? ucma_destroy_id+0x330/0x400 [ 86.246597][T10209] panic+0x22a/0x4e3 [ 86.246600][T10209] ? add_taint.cold.7+0x11/0x11 [ 86.246608][T10209] ? ___preempt_schedule+0x16/0x18 [ 86.246614][T10209] ? ucma_destroy_id+0x3ca/0x400 [ 86.254131][ T4292] kobject: 'loop4' (00000000a11e96af): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 86.255555][T10209] end_report+0x47/0x4f [ 86.255561][T10209] __kasan_report.cold.11+0xe/0x3a [ 86.255568][T10209] ? ucma_destroy_id+0x3ca/0x400 [ 86.255575][T10209] ? ucma_destroy_id+0x3ca/0x400 [ 86.263874][ T4292] kobject: 'loop0' (000000007727f11c): kobject_uevent_env [ 86.268212][T10209] kasan_report+0x12/0x20 [ 86.268220][T10209] __asan_report_load8_noabort+0x14/0x20 [ 86.268229][T10209] ucma_destroy_id+0x3ca/0x400 [ 86.275253][ T4292] kobject: 'loop0' (000000007727f11c): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 86.277987][T10209] ? ucma_close+0x2d0/0x2d0 [ 86.277997][T10209] ? __kasan_check_write+0x14/0x20 [ 86.278002][T10209] ucma_write+0x203/0x2d0 [ 86.278015][T10209] ? selinux_file_permission+0x34d/0x430 [ 86.371659][ T4292] kobject: 'loop0' (000000007727f11c): kobject_uevent_env [ 86.372919][T10209] ? ucma_open+0x250/0x250 [ 86.384762][ T4292] kobject: 'loop0' (000000007727f11c): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 86.391875][T10209] ? security_file_permission+0x4c/0x290 [ 86.666570][T10209] __vfs_write+0x5e/0x110 [ 86.671496][T10209] vfs_write+0x18a/0x520 [ 86.675709][T10209] ksys_write+0x197/0x220 [ 86.680020][T10209] ? __ia32_sys_read+0xa0/0xa0 [ 86.685364][T10209] ? do_syscall_64+0x21/0x5f0 [ 86.692715][T10209] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.699385][T10209] __x64_sys_write+0x6e/0xb0 [ 86.704909][T10209] do_syscall_64+0xca/0x5f0 [ 86.709414][T10209] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 86.715591][T10209] RIP: 0033:0x45a679 [ 86.719470][T10209] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 86.739050][T10209] RSP: 002b:00007f2889d0ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.747452][T10209] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a679 [ 86.757704][T10209] RDX: 0000000000000018 RSI: 0000000020000140 RDI: 0000000000000003 [ 86.768126][T10209] RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 [ 86.776508][T10209] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2889d0f6d4 [ 86.784556][T10209] R13: 00000000004d2b38 R14: 00000000004e3be0 R15: 00000000ffffffff [ 86.794141][T10209] Kernel Offset: disabled [ 86.799600][T10209] Rebooting in 86400 seconds..