Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 38.406029] kauditd_printk_skb: 10 callbacks suppressed [ 38.406034] audit: type=1400 audit(1576626724.329:36): avc: denied { map } for pid=6936 comm="syz-fuzzer" path="/root/syz-fuzzer" dev="sda1" ino=16480 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 39.088649] IPVS: ftp: loaded support on port[0] = 21 [ 39.499434] can: request_module (can-proto-0) failed. [ 40.539960] can: request_module (can-proto-0) failed. [ 40.693010] audit: type=1400 audit(1576626726.619:37): avc: denied { create } for pid=6936 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 [ 40.716836] audit: type=1400 audit(1576626726.619:38): avc: denied { create } for pid=6936 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 [ 40.740684] audit: type=1400 audit(1576626726.619:39): avc: denied { create } for pid=6936 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 '10.128.0.122' (ECDSA) to the list of known hosts. 2019/12/17 23:52:13 parsed 1 programs 2019/12/17 23:52:13 executed programs: 0 [ 47.864689] IPVS: ftp: loaded support on port[0] = 21 [ 47.894147] IPVS: ftp: loaded support on port[0] = 21 [ 47.965020] IPVS: ftp: loaded support on port[0] = 21 [ 47.972569] IPVS: ftp: loaded support on port[0] = 21 [ 47.985937] IPVS: ftp: loaded support on port[0] = 21 [ 48.014344] IPVS: ftp: loaded support on port[0] = 21 [ 48.123679] chnl_net:caif_netlink_parms(): no params data found [ 48.136217] chnl_net:caif_netlink_parms(): no params data found [ 48.218720] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.226310] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.233811] device bridge_slave_0 entered promiscuous mode [ 48.241357] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.247710] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.255587] device bridge_slave_1 entered promiscuous mode [ 48.303648] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.311353] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.317698] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.324940] device bridge_slave_0 entered promiscuous mode [ 48.333272] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.339613] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.346687] device bridge_slave_1 entered promiscuous mode [ 48.364464] chnl_net:caif_netlink_parms(): no params data found [ 48.373091] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.382608] chnl_net:caif_netlink_parms(): no params data found [ 48.391725] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.434418] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.477039] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.486119] team0: Port device team_slave_0 added [ 48.505553] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.513685] team0: Port device team_slave_0 added [ 48.520462] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.528042] team0: Port device team_slave_1 added [ 48.535121] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.542624] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.549827] team0: Port device team_slave_1 added [ 48.562329] chnl_net:caif_netlink_parms(): no params data found [ 48.574097] chnl_net:caif_netlink_parms(): no params data found [ 48.585626] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.596549] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.609939] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.616572] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.623920] device bridge_slave_0 entered promiscuous mode [ 48.630139] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.637078] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.644287] device bridge_slave_0 entered promiscuous mode [ 48.666508] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.676113] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.682643] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.690284] device bridge_slave_1 entered promiscuous mode [ 48.696424] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.705433] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.713189] device bridge_slave_1 entered promiscuous mode [ 48.752602] device hsr_slave_0 entered promiscuous mode [ 48.791298] device hsr_slave_1 entered promiscuous mode [ 48.835209] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.866043] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 48.883708] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.892610] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.900212] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.906661] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.913588] device bridge_slave_0 entered promiscuous mode [ 48.923671] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.930002] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.936974] device bridge_slave_1 entered promiscuous mode [ 48.949903] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.956316] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.963436] device bridge_slave_0 entered promiscuous mode [ 49.012544] device hsr_slave_0 entered promiscuous mode [ 49.071427] device hsr_slave_1 entered promiscuous mode [ 49.122330] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.130150] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.148089] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.160198] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.167934] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.175795] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.182998] device bridge_slave_1 entered promiscuous mode [ 49.189833] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.200233] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.207485] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.215316] team0: Port device team_slave_0 added [ 49.228895] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.236567] team0: Port device team_slave_1 added [ 49.250998] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.258333] team0: Port device team_slave_0 added [ 49.273730] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.280905] team0: Port device team_slave_0 added [ 49.286415] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.299286] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.306941] team0: Port device team_slave_1 added [ 49.312526] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.319678] team0: Port device team_slave_1 added [ 49.327326] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.335959] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.343681] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.351642] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.360714] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.368268] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.387503] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.404256] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.452711] device hsr_slave_0 entered promiscuous mode [ 49.491295] device hsr_slave_1 entered promiscuous mode [ 49.592564] device hsr_slave_0 entered promiscuous mode [ 49.631313] device hsr_slave_1 entered promiscuous mode [ 49.675100] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.688117] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.732649] device hsr_slave_0 entered promiscuous mode [ 49.781462] device hsr_slave_1 entered promiscuous mode [ 49.821595] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.828470] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.838995] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.852733] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.859713] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.866944] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.875552] team0: Port device team_slave_0 added [ 49.881385] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.888541] team0: Port device team_slave_1 added [ 49.893928] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.913726] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.930914] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.993740] device hsr_slave_0 entered promiscuous mode [ 50.041368] device hsr_slave_1 entered promiscuous mode [ 50.082821] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 50.089856] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 50.098253] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 50.126296] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 50.144151] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 50.155332] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.165880] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.192876] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.200481] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.219616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.227360] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.237039] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.243690] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.258446] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.267124] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.277606] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.289406] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.295871] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.303385] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.310160] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.318143] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.325767] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.332229] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.342852] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.348924] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.360040] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.368512] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.375876] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.392711] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.400708] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.410608] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.423921] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.431801] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.438033] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.446948] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.453554] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.461911] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.469478] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.475856] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.482734] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.490439] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.498081] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.504485] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.511322] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.518125] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.528877] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.537123] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.545895] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.553997] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.561777] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.569421] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.577027] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.583539] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.590641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.598445] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.605994] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.612372] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.620145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.628873] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.639026] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.647653] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.655140] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.662299] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.669705] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.677897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.685137] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.692055] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.701682] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.709230] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.717619] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.726668] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.735450] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 50.743517] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.754004] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.760922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.768021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.775955] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.784063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.791788] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.798230] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.805807] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.817103] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 50.826675] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.834383] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.844002] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.852031] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.859531] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.865935] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.873085] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 50.880716] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.888474] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.896835] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.907093] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.914321] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.922413] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 50.931693] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.939362] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 50.947775] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 50.956224] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.964616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 50.972431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 50.979948] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.987483] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.995384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.003160] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.009528] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.016363] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.024243] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.032208] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.039080] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.050628] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.059541] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.067270] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.075716] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.084162] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.091861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.099417] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.106999] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.114855] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.123327] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 51.130932] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 51.140360] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.148422] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.156587] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.164063] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.175324] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.183262] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.190727] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.197255] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.204838] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.213185] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.220886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.228599] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.237264] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.244548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.251892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.259291] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.267226] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 51.275803] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.286612] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 51.293289] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.300534] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 51.309552] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.316800] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.324558] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.332339] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.340210] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.349970] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.356332] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.363236] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.370673] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.379184] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.388140] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.396920] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.407734] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.414259] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.425491] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 51.434368] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.442002] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.449444] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.457061] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.464897] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.472467] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.480003] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.487702] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.495354] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.504432] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 51.513695] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.522823] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.530914] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 51.539156] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 51.546795] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.553143] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.560003] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.568080] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 51.575835] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 51.585128] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.591431] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.598719] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.604877] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.613380] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.623576] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 51.632322] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 51.640993] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.651000] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 51.658372] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.665471] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.673326] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.680694] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 51.688600] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 51.696309] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.702675] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.709453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 51.717190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 51.724783] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.732299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.742614] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.755797] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.767638] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.778686] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 51.787651] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 51.794842] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 51.805435] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 51.813734] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.826694] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 51.833965] audit: type=1400 audit(1576626737.749:40): avc: denied { associate } for pid=7034 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 [ 51.861794] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.869842] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 51.879717] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 51.888067] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 51.895716] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.904186] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.912310] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 51.922445] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 51.928478] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.940557] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 51.956938] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 51.966731] audit: type=1400 audit(1576626737.889:41): avc: denied { write } for pid=7053 comm="syz-executor.3" 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 [ 51.967120] audit: type=1400 audit(1576626737.889:42): avc: denied { read } for pid=7053 comm="syz-executor.3" 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 [ 51.995908] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 52.024677] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.034441] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.042678] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.050119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.058265] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.077266] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.092994] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 52.118952] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.129601] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.139796] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.167414] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.179259] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.198070] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 52.223298] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.229685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.250057] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.277865] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.321826] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 52.355659] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.369298] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.397384] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 52.415954] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.459784] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 52.489513] 8021q: adding VLAN 0 to HW filter on device batadv0 2019/12/17 23:52:18 executed programs: 34 2019/12/17 23:52:23 executed programs: 336 2019/12/17 23:52:28 executed programs: 645 2019/12/17 23:52:33 executed programs: 957 2019/12/17 23:52:38 executed programs: 1270 2019/12/17 23:52:43 executed programs: 1574 2019/12/17 23:52:48 executed programs: 1883 2019/12/17 23:52:53 executed programs: 2187 2019/12/17 23:52:58 executed programs: 2495 2019/12/17 23:53:03 executed programs: 2797 2019/12/17 23:53:08 executed programs: 3103 2019/12/17 23:53:13 executed programs: 3405 2019/12/17 23:53:18 executed programs: 3700 2019/12/17 23:53:23 executed programs: 3999 2019/12/17 23:53:29 executed programs: 4302 2019/12/17 23:53:34 executed programs: 4607 2019/12/17 23:53:39 executed programs: 4911 2019/12/17 23:53:44 executed programs: 5201 2019/12/17 23:53:49 executed programs: 5497 2019/12/17 23:53:54 executed programs: 5786 2019/12/17 23:53:59 executed programs: 6099 2019/12/17 23:54:04 executed programs: 6397 2019/12/17 23:54:09 executed programs: 6690 2019/12/17 23:54:14 executed programs: 6979 2019/12/17 23:54:19 executed programs: 7267 2019/12/17 23:54:24 executed programs: 7557 2019/12/17 23:54:29 executed programs: 7860 2019/12/17 23:54:34 executed programs: 8149 2019/12/17 23:54:39 executed programs: 8436 2019/12/17 23:54:44 executed programs: 8713 2019/12/17 23:54:49 executed programs: 8991 2019/12/17 23:54:54 executed programs: 9272 2019/12/17 23:54:59 executed programs: 9568 2019/12/17 23:55:04 executed programs: 9862 2019/12/17 23:55:09 executed programs: 10146 2019/12/17 23:55:14 executed programs: 10431 2019/12/17 23:55:19 executed programs: 10712 2019/12/17 23:55:24 executed programs: 10989 2019/12/17 23:55:29 executed programs: 11286 2019/12/17 23:55:34 executed programs: 11576 2019/12/17 23:55:39 executed programs: 11861 [ 416.761210] INFO: task syz-executor.3:22552 blocked for more than 140 seconds. [ 416.768851] Not tainted 4.19.90-syzkaller #0 [ 416.782350] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 416.790511] syz-executor.3 D28424 22552 7034 0x00000004 [ 416.800170] Call Trace: [ 416.803693] __schedule+0x78c/0x1c10 [ 416.807427] ? pci_mmcfg_check_reserved+0x120/0x120 [ 416.816669] ? kasan_check_read+0x11/0x20 [ 416.820976] schedule+0x7f/0x1b0 [ 416.825335] schedule_preempt_disabled+0x13/0x20 [ 416.830098] __mutex_lock+0x806/0x1210 [ 416.838058] ? genl_rcv_msg+0x10e/0x140 [ 416.843837] ? mutex_trylock+0x1e0/0x1e0 [ 416.847971] ? netdev_pick_tx+0x2b0/0x2b0 [ 416.856143] ? memcpy+0x45/0x50 [ 416.859502] mutex_lock_nested+0x16/0x20 [ 416.864657] ? mutex_lock_nested+0x16/0x20 [ 416.868914] genl_rcv_msg+0x10e/0x140 [ 416.876591] netlink_rcv_skb+0x142/0x390 [ 416.880749] ? genl_family_rcv_msg+0xe80/0xe80 [ 416.886543] ? netlink_ack+0x990/0x990 [ 416.890435] genl_rcv+0x23/0x40 [ 416.897545] netlink_unicast+0x445/0x640 [ 416.902540] ? netlink_attachskb+0x6d0/0x6d0 [ 416.906973] netlink_sendmsg+0x765/0xc50 [ 416.915702] ? netlink_unicast+0x640/0x640 [ 416.920010] ? copy_msghdr_from_user+0x20b/0x3e0 [ 416.925788] ? selinux_socket_sendmsg+0x31/0x40 [ 416.930469] ? netlink_unicast+0x640/0x640 [ 416.938547] sock_sendmsg+0xb5/0xf0 [ 416.943123] ___sys_sendmsg+0x647/0x950 [ 416.947111] ? find_held_lock+0x36/0x1d0 [ 416.955132] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 416.959961] ? __fget+0x278/0x400 [ 416.964289] ? kasan_check_read+0x11/0x20 [ 416.968442] ? __fget+0x295/0x400 [ 416.976373] ? ksys_dup3+0x2e0/0x2e0 [ 416.980210] ? __fget_light+0x174/0x1e0 [ 416.985116] ? __fdget+0xe/0x10 [ 416.988403] ? lock_downgrade+0x860/0x860 [ 416.996503] __sys_sendmsg+0xd9/0x180 [ 417.000405] ? __ia32_sys_shutdown+0x70/0x70 [ 417.005879] ? __fd_install+0x179/0x4b0 [ 417.009878] ? fd_install+0x47/0x60 [ 417.017649] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 417.023975] __x64_sys_sendmsg+0x73/0xb0 [ 417.028049] do_syscall_64+0xd0/0x4e0 [ 417.035708] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 417.040904] RIP: 0033:0x413bf1 [ 417.045659] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 417.069640] RSP: 002b:00007f9699bca9c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 417.077601] RAX: ffffffffffffffda RBX: 00007f9699bcaa58 RCX: 0000000000413bf1 [ 417.089439] RDX: 0000000000000000 RSI: 00007f9699bcaa00 RDI: 0000000000000005 [ 417.096841] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 417.108810] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f9699bcaa40 [ 417.116207] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 417.128157] INFO: task syz-executor.3:22558 blocked for more than 140 seconds. [ 417.136096] Not tainted 4.19.90-syzkaller #0 [ 417.145619] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 417.153641] syz-executor.3 D27720 22558 7034 0x00000004 [ 417.159368] Call Trace: [ 417.166583] __schedule+0x78c/0x1c10 [ 417.170305] ? pci_mmcfg_check_reserved+0x120/0x120 [ 417.176071] ? kasan_check_read+0x11/0x20 [ 417.180238] schedule+0x7f/0x1b0 [ 417.188355] schedule_preempt_disabled+0x13/0x20 [ 417.193273] __mutex_lock+0x806/0x1210 [ 417.197158] ? genl_rcv_msg+0x10e/0x140 [ 417.205908] ? mutex_trylock+0x1e0/0x1e0 [ 417.210004] ? netdev_pick_tx+0x2b0/0x2b0 [ 417.214325] ? memcpy+0x45/0x50 [ 417.218045] mutex_lock_nested+0x16/0x20 [ 417.226683] ? mutex_lock_nested+0x16/0x20 [ 417.231017] genl_rcv_msg+0x10e/0x140 [ 417.234933] netlink_rcv_skb+0x142/0x390 [ 417.239011] ? genl_family_rcv_msg+0xe80/0xe80 [ 417.248162] ? netlink_ack+0x990/0x990 [ 417.252181] genl_rcv+0x23/0x40 [ 417.255454] netlink_unicast+0x445/0x640 [ 417.259514] ? netlink_attachskb+0x6d0/0x6d0 [ 417.268546] netlink_sendmsg+0x765/0xc50 [ 417.272721] ? netlink_unicast+0x640/0x640 [ 417.276949] ? copy_msghdr_from_user+0x20b/0x3e0 [ 417.286413] ? selinux_socket_sendmsg+0x31/0x40 [ 417.291422] ? netlink_unicast+0x640/0x640 [ 417.295681] sock_sendmsg+0xb5/0xf0 [ 417.299306] ___sys_sendmsg+0x647/0x950 [ 417.309512] ? find_held_lock+0x36/0x1d0 [ 417.313766] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 417.318532] ? __fget+0x278/0x400 [ 417.328373] ? kasan_check_read+0x11/0x20 [ 417.332775] ? __fget+0x295/0x400 [ 417.336240] ? ksys_dup3+0x2e0/0x2e0 [ 417.339955] ? __fget_light+0x174/0x1e0 [ 417.348660] ? __fdget+0xe/0x10 [ 417.352247] ? lock_downgrade+0x860/0x860 [ 417.356417] __sys_sendmsg+0xd9/0x180 [ 417.360213] ? __ia32_sys_shutdown+0x70/0x70 [ 417.369410] ? __fd_install+0x179/0x4b0 [ 417.373643] ? fd_install+0x47/0x60 [ 417.377285] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 417.387515] __x64_sys_sendmsg+0x73/0xb0 [ 417.391829] do_syscall_64+0xd0/0x4e0 [ 417.395678] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 417.400870] RIP: 0033:0x413bf1 [ 417.412487] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 417.437061] RSP: 002b:00007f9699ba99c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 417.444967] RAX: ffffffffffffffda RBX: 00007f9699ba9a58 RCX: 0000000000413bf1 [ 417.456854] RDX: 0000000000000000 RSI: 00007f9699ba9a00 RDI: 0000000000000005 [ 417.464320] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 417.476303] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f9699ba9a40 [ 417.483765] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 417.495928] INFO: task syz-executor.0:22548 blocked for more than 140 seconds. [ 417.503501] Not tainted 4.19.90-syzkaller #0 [ 417.508440] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 417.521090] syz-executor.0 D28424 22548 7038 0x00000004 [ 417.526734] Call Trace: [ 417.529322] __schedule+0x78c/0x1c10 [ 417.536864] ? pci_mmcfg_check_reserved+0x120/0x120 [ 417.542842] ? kasan_check_read+0x11/0x20 [ 417.547005] schedule+0x7f/0x1b0 [ 417.550370] schedule_preempt_disabled+0x13/0x20 [ 417.559111] __mutex_lock+0x806/0x1210 [ 417.564590] ? genl_rcv_msg+0x10e/0x140 [ 417.568602] ? mutex_trylock+0x1e0/0x1e0 [ 417.576699] ? netdev_pick_tx+0x2b0/0x2b0 [ 417.580871] ? memcpy+0x45/0x50 [ 417.585025] mutex_lock_nested+0x16/0x20 [ 417.589087] ? mutex_lock_nested+0x16/0x20 [ 417.597144] genl_rcv_msg+0x10e/0x140 [ 417.600996] netlink_rcv_skb+0x142/0x390 [ 417.605919] ? genl_family_rcv_msg+0xe80/0xe80 [ 417.610511] ? netlink_ack+0x990/0x990 [ 417.618423] genl_rcv+0x23/0x40 [ 417.622537] netlink_unicast+0x445/0x640 [ 417.626599] ? netlink_attachskb+0x6d0/0x6d0 [ 417.631003] netlink_sendmsg+0x765/0xc50 [ 417.639052] ? netlink_unicast+0x640/0x640 [ 417.646066] ? copy_msghdr_from_user+0x20b/0x3e0 [ 417.650845] ? selinux_socket_sendmsg+0x31/0x40 [ 417.659560] ? netlink_unicast+0x640/0x640 [ 417.664730] sock_sendmsg+0xb5/0xf0 [ 417.668392] ___sys_sendmsg+0x647/0x950 [ 417.676293] ? find_held_lock+0x36/0x1d0 [ 417.680370] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 417.686010] ? __fget+0x278/0x400 [ 417.689472] ? kasan_check_read+0x11/0x20 [ 417.698296] ? __fget+0x295/0x400 [ 417.703899] ? ksys_dup3+0x2e0/0x2e0 [ 417.707619] ? __fget_light+0x174/0x1e0 [ 417.715519] ? __fdget+0xe/0x10 [ 417.718806] ? lock_downgrade+0x860/0x860 [ 417.723839] __sys_sendmsg+0xd9/0x180 [ 417.727656] ? __ia32_sys_shutdown+0x70/0x70 [ 417.735965] ? __fd_install+0x179/0x4b0 [ 417.739951] ? fd_install+0x47/0x60 [ 417.744508] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 417.749878] __x64_sys_sendmsg+0x73/0xb0 [ 417.757822] do_syscall_64+0xd0/0x4e0 [ 417.762547] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 417.767747] RIP: 0033:0x413bf1 [ 417.770945] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 417.794728] RSP: 002b:00007f86ccd919c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 417.804334] RAX: ffffffffffffffda RBX: 00007f86ccd91a58 RCX: 0000000000413bf1 [ 417.815466] RDX: 0000000000000000 RSI: 00007f86ccd91a00 RDI: 0000000000000005 [ 417.824261] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 417.835690] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f86ccd91a40 [ 417.843982] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 417.855156] INFO: task syz-executor.0:22556 blocked for more than 140 seconds. [ 417.863504] Not tainted 4.19.90-syzkaller #0 [ 417.868576] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 417.880742] syz-executor.0 D27720 22556 7038 0x00000004 [ 417.888180] Call Trace: [ 417.890776] __schedule+0x78c/0x1c10 [ 417.906197] ? pci_mmcfg_check_reserved+0x120/0x120 [ 417.911486] ? kasan_check_read+0x11/0x20 [ 417.915634] schedule+0x7f/0x1b0 [ 417.918999] schedule_preempt_disabled+0x13/0x20 [ 417.928657] __mutex_lock+0x806/0x1210 [ 417.932878] ? genl_rcv_msg+0x10e/0x140 [ 417.936858] ? mutex_trylock+0x1e0/0x1e0 [ 417.940919] ? netdev_pick_tx+0x2b0/0x2b0 [ 417.950193] ? memcpy+0x45/0x50 [ 417.954490] mutex_lock_nested+0x16/0x20 [ 417.958549] ? mutex_lock_nested+0x16/0x20 [ 417.967700] genl_rcv_msg+0x10e/0x140 [ 417.971819] netlink_rcv_skb+0x142/0x390 [ 417.975883] ? genl_family_rcv_msg+0xe80/0xe80 [ 417.980468] ? netlink_ack+0x990/0x990 [ 417.989306] genl_rcv+0x23/0x40 [ 417.992816] netlink_unicast+0x445/0x640 [ 417.996903] ? netlink_attachskb+0x6d0/0x6d0 [ 418.006497] netlink_sendmsg+0x765/0xc50 [ 418.010612] ? netlink_unicast+0x640/0x640 [ 418.015194] ? copy_msghdr_from_user+0x20b/0x3e0 [ 418.020103] ? selinux_socket_sendmsg+0x31/0x40 [ 418.029673] ? netlink_unicast+0x640/0x640 [ 418.034153] sock_sendmsg+0xb5/0xf0 [ 418.037778] ___sys_sendmsg+0x647/0x950 [ 418.046960] ? find_held_lock+0x36/0x1d0 [ 418.051283] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 418.056041] ? __fget+0x278/0x400 [ 418.059492] ? kasan_check_read+0x11/0x20 [ 418.068748] ? __fget+0x295/0x400 [ 418.072520] ? ksys_dup3+0x2e0/0x2e0 [ 418.076274] ? __fget_light+0x174/0x1e0 [ 418.080258] ? __fdget+0xe/0x10 [ 418.089102] ? lock_downgrade+0x860/0x860 [ 418.093516] __sys_sendmsg+0xd9/0x180 [ 418.097778] ? __ia32_sys_shutdown+0x70/0x70 [ 418.106910] ? __fd_install+0x179/0x4b0 [ 418.110913] ? fd_install+0x47/0x60 [ 418.114981] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 418.120358] __x64_sys_sendmsg+0x73/0xb0 [ 418.129394] do_syscall_64+0xd0/0x4e0 [ 418.133423] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 418.138634] RIP: 0033:0x413bf1 [ 418.146678] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 418.170315] RSP: 002b:00007f86ccd709c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 418.178342] RAX: ffffffffffffffda RBX: 00007f86ccd70a58 RCX: 0000000000413bf1 [ 418.190480] RDX: 0000000000000000 RSI: 00007f86ccd70a00 RDI: 0000000000000005 [ 418.197996] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 418.210224] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f86ccd70a40 [ 418.218444] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 418.230673] INFO: task syz-executor.2:22550 blocked for more than 140 seconds. [ 418.238227] Not tainted 4.19.90-syzkaller #0 [ 418.247791] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 418.255959] syz-executor.2 D28424 22550 7032 0x00000004 [ 418.266262] Call Trace: [ 418.269295] __schedule+0x78c/0x1c10 [ 418.273230] ? pci_mmcfg_check_reserved+0x120/0x120 [ 418.278245] ? kasan_check_read+0x11/0x20 [ 418.287058] schedule+0x7f/0x1b0 [ 418.290430] schedule_preempt_disabled+0x13/0x20 [ 418.296204] __mutex_lock+0x806/0x1210 [ 418.300091] ? genl_rcv_msg+0x10e/0x140 [ 418.308940] ? mutex_trylock+0x1e0/0x1e0 [ 418.313220] ? netdev_pick_tx+0x2b0/0x2b0 [ 418.317395] ? memcpy+0x45/0x50 [ 418.320673] mutex_lock_nested+0x16/0x20 [ 418.329428] ? mutex_lock_nested+0x16/0x20 [ 418.333867] genl_rcv_msg+0x10e/0x140 [ 418.337666] netlink_rcv_skb+0x142/0x390 [ 418.347208] ? genl_family_rcv_msg+0xe80/0xe80 [ 418.351984] ? netlink_ack+0x990/0x990 [ 418.355873] genl_rcv+0x23/0x40 [ 418.359146] netlink_unicast+0x445/0x640 [ 418.369857] ? netlink_attachskb+0x6d0/0x6d0 [ 418.374598] netlink_sendmsg+0x765/0xc50 [ 418.378673] ? netlink_unicast+0x640/0x640 [ 418.387920] ? copy_msghdr_from_user+0x20b/0x3e0 [ 418.393026] ? selinux_socket_sendmsg+0x31/0x40 [ 418.397696] ? netlink_unicast+0x640/0x640 [ 418.406617] sock_sendmsg+0xb5/0xf0 [ 418.410253] ___sys_sendmsg+0x647/0x950 [ 418.414429] ? find_held_lock+0x36/0x1d0 [ 418.418486] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 418.427934] ? __fget+0x278/0x400 [ 418.431623] ? kasan_check_read+0x11/0x20 [ 418.435778] ? __fget+0x295/0x400 [ 418.439223] ? ksys_dup3+0x2e0/0x2e0 [ 418.447943] ? __fget_light+0x174/0x1e0 [ 418.452321] ? __fdget+0xe/0x10 [ 418.455620] ? lock_downgrade+0x860/0x860 [ 418.459773] __sys_sendmsg+0xd9/0x180 [ 418.468420] ? __ia32_sys_shutdown+0x70/0x70 [ 418.473707] ? __fd_install+0x179/0x4b0 [ 418.477680] ? fd_install+0x47/0x60 [ 418.486053] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 418.491634] __x64_sys_sendmsg+0x73/0xb0 [ 418.495691] do_syscall_64+0xd0/0x4e0 [ 418.499488] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 418.509462] RIP: 0033:0x413bf1 [ 418.512851] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 418.536828] RSP: 002b:00007fe747bc19c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 418.544764] RAX: ffffffffffffffda RBX: 00007fe747bc1a58 RCX: 0000000000413bf1 [ 418.556746] RDX: 0000000000000000 RSI: 00007fe747bc1a00 RDI: 0000000000000005 [ 418.564240] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 418.576308] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe747bc1a40 [ 418.583807] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 418.595848] INFO: task syz-executor.2:22559 blocked for more than 140 seconds. [ 418.604060] Not tainted 4.19.90-syzkaller #0 [ 418.608985] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 418.621667] syz-executor.2 D27720 22559 7032 0x00000004 [ 418.627303] Call Trace: [ 418.629891] __schedule+0x78c/0x1c10 [ 418.638033] ? pci_mmcfg_check_reserved+0x120/0x120 [ 418.644088] ? kasan_check_read+0x11/0x20 [ 418.648253] schedule+0x7f/0x1b0 [ 418.655818] schedule_preempt_disabled+0x13/0x20 [ 418.660692] __mutex_lock+0x806/0x1210 [ 418.665592] ? genl_rcv_msg+0x10e/0x140 [ 418.669567] ? mutex_trylock+0x1e0/0x1e0 [ 418.677553] ? netdev_pick_tx+0x2b0/0x2b0 [ 418.684803] ? memcpy+0x45/0x50 [ 418.688093] mutex_lock_nested+0x16/0x20 [ 418.696063] ? mutex_lock_nested+0x16/0x20 [ 418.700294] genl_rcv_msg+0x10e/0x140 [ 418.705041] netlink_rcv_skb+0x142/0x390 [ 418.709096] ? genl_family_rcv_msg+0xe80/0xe80 [ 418.717619] ? netlink_ack+0x990/0x990 [ 418.722552] genl_rcv+0x23/0x40 [ 418.725859] netlink_unicast+0x445/0x640 [ 418.729946] ? netlink_attachskb+0x6d0/0x6d0 [ 418.739339] netlink_sendmsg+0x765/0xc50 [ 418.744500] ? netlink_unicast+0x640/0x640 [ 418.748742] ? copy_msghdr_from_user+0x20b/0x3e0 [ 418.757703] ? selinux_socket_sendmsg+0x31/0x40 [ 418.763405] ? netlink_unicast+0x640/0x640 [ 418.767640] sock_sendmsg+0xb5/0xf0 [ 418.775248] ___sys_sendmsg+0x647/0x950 [ 418.779921] ? find_held_lock+0x36/0x1d0 [ 418.785040] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 418.789794] ? __fget+0x278/0x400 [ 418.797226] ? kasan_check_read+0x11/0x20 [ 418.802330] ? __fget+0x295/0x400 [ 418.805781] ? ksys_dup3+0x2e0/0x2e0 [ 418.809491] ? __fget_light+0x174/0x1e0 [ 418.817445] ? __fdget+0xe/0x10 [ 418.820747] ? lock_downgrade+0x860/0x860 [ 418.825902] __sys_sendmsg+0xd9/0x180 [ 418.829702] ? __ia32_sys_shutdown+0x70/0x70 [ 418.838031] ? __fd_install+0x179/0x4b0 [ 418.843813] ? fd_install+0x47/0x60 [ 418.847454] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 418.856797] __x64_sys_sendmsg+0x73/0xb0 [ 418.860862] do_syscall_64+0xd0/0x4e0 [ 418.866296] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 418.875547] RIP: 0033:0x413bf1 [ 418.878741] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 418.902586] RSP: 002b:00007fe747ba09c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 418.910311] RAX: ffffffffffffffda RBX: 00007fe747ba0a58 RCX: 0000000000413bf1 [ 418.920817] RDX: 0000000000000000 RSI: 00007fe747ba0a00 RDI: 0000000000000005 [ 418.930694] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 418.942752] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe747ba0a40 [ 418.950034] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 418.959949] INFO: task syz-executor.5:22554 blocked for more than 140 seconds. [ 418.969813] Not tainted 4.19.90-syzkaller #0 [ 418.978226] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 418.988643] syz-executor.5 D28424 22554 7041 0x00000004 [ 418.997513] Call Trace: [ 419.000109] __schedule+0x78c/0x1c10 [ 419.006346] ? pci_mmcfg_check_reserved+0x120/0x120 [ 419.013855] ? kasan_check_read+0x11/0x20 [ 419.018055] schedule+0x7f/0x1b0 [ 419.023859] schedule_preempt_disabled+0x13/0x20 [ 419.028615] __mutex_lock+0x806/0x1210 [ 419.034936] ? genl_rcv_msg+0x10e/0x140 [ 419.038912] ? mutex_trylock+0x1e0/0x1e0 [ 419.045423] ? netdev_pick_tx+0x2b0/0x2b0 [ 419.049595] ? memcpy+0x45/0x50 [ 419.055348] mutex_lock_nested+0x16/0x20 [ 419.059405] ? mutex_lock_nested+0x16/0x20 [ 419.066081] genl_rcv_msg+0x10e/0x140 [ 419.069887] netlink_rcv_skb+0x142/0x390 [ 419.076415] ? genl_family_rcv_msg+0xe80/0xe80 [ 419.080993] ? netlink_ack+0x990/0x990 [ 419.087430] genl_rcv+0x23/0x40 [ 419.090708] netlink_unicast+0x445/0x640 [ 419.097288] ? netlink_attachskb+0x6d0/0x6d0 [ 419.104167] netlink_sendmsg+0x765/0xc50 [ 419.108229] ? netlink_unicast+0x640/0x640 [ 419.114889] ? copy_msghdr_from_user+0x20b/0x3e0 [ 419.119645] ? selinux_socket_sendmsg+0x31/0x40 [ 419.128371] ? netlink_unicast+0x640/0x640 [ 419.135026] sock_sendmsg+0xb5/0xf0 [ 419.138745] ___sys_sendmsg+0x647/0x950 [ 419.146184] ? find_held_lock+0x36/0x1d0 [ 419.150267] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 419.157506] ? __fget+0x278/0x400 [ 419.164341] ? kasan_check_read+0x11/0x20 [ 419.168512] ? __fget+0x295/0x400 [ 419.174396] ? ksys_dup3+0x2e0/0x2e0 [ 419.178115] ? __fget_light+0x174/0x1e0 [ 419.184744] ? __fdget+0xe/0x10 [ 419.188044] ? lock_downgrade+0x860/0x860 [ 419.194680] __sys_sendmsg+0xd9/0x180 [ 419.198478] ? __ia32_sys_shutdown+0x70/0x70 [ 419.205570] ? __fd_install+0x179/0x4b0 [ 419.209568] ? fd_install+0x47/0x60 [ 419.215854] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.223739] __x64_sys_sendmsg+0x73/0xb0 [ 419.227803] do_syscall_64+0xd0/0x4e0 [ 419.234069] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.239261] RIP: 0033:0x413bf1 [ 419.244958] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 419.269342] RSP: 002b:00007fe4d74c99c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 419.277277] RAX: ffffffffffffffda RBX: 00007fe4d74c9a58 RCX: 0000000000413bf1 [ 419.289250] RDX: 0000000000000000 RSI: 00007fe4d74c9a00 RDI: 0000000000000005 [ 419.296818] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 419.308874] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe4d74c9a40 [ 419.316357] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 419.328368] INFO: task syz-executor.5:22560 blocked for more than 140 seconds. [ 419.335927] Not tainted 4.19.90-syzkaller #0 [ 419.340847] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 419.353811] syz-executor.5 D27720 22560 7041 0x00000004 [ 419.359466] Call Trace: [ 419.363902] __schedule+0x78c/0x1c10 [ 419.367666] ? pci_mmcfg_check_reserved+0x120/0x120 [ 419.376000] ? kasan_check_read+0x11/0x20 [ 419.380180] schedule+0x7f/0x1b0 [ 419.385391] schedule_preempt_disabled+0x13/0x20 [ 419.390152] __mutex_lock+0x806/0x1210 [ 419.397973] ? genl_rcv_msg+0x10e/0x140 [ 419.405454] ? mutex_trylock+0x1e0/0x1e0 [ 419.409528] ? netdev_pick_tx+0x2b0/0x2b0 [ 419.416935] ? memcpy+0x45/0x50 [ 419.420222] mutex_lock_nested+0x16/0x20 [ 419.426082] ? mutex_lock_nested+0x16/0x20 [ 419.430317] genl_rcv_msg+0x10e/0x140 [ 419.437542] netlink_rcv_skb+0x142/0x390 [ 419.443346] ? genl_family_rcv_msg+0xe80/0xe80 [ 419.447930] ? netlink_ack+0x990/0x990 [ 419.455044] genl_rcv+0x23/0x40 [ 419.458326] netlink_unicast+0x445/0x640 [ 419.464221] ? netlink_attachskb+0x6d0/0x6d0 [ 419.468676] netlink_sendmsg+0x765/0xc50 [ 419.476055] ? netlink_unicast+0x640/0x640 [ 419.480306] ? copy_msghdr_from_user+0x20b/0x3e0 [ 419.486916] ? selinux_socket_sendmsg+0x31/0x40 [ 419.494798] ? netlink_unicast+0x640/0x640 [ 419.499035] sock_sendmsg+0xb5/0xf0 [ 419.504465] ___sys_sendmsg+0x647/0x950 [ 419.508441] ? find_held_lock+0x36/0x1d0 [ 419.515782] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 419.520544] ? __fget+0x278/0x400 [ 419.526521] ? kasan_check_read+0x11/0x20 [ 419.530707] ? __fget+0x295/0x400 [ 419.537552] ? ksys_dup3+0x2e0/0x2e0 [ 419.543219] ? __fget_light+0x174/0x1e0 [ 419.547205] ? __fdget+0xe/0x10 [ 419.550480] ? lock_downgrade+0x860/0x860 [ 419.557867] __sys_sendmsg+0xd9/0x180 [ 419.563428] ? __ia32_sys_shutdown+0x70/0x70 [ 419.567850] ? __fd_install+0x179/0x4b0 [ 419.575151] ? fd_install+0x47/0x60 [ 419.578794] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.585895] __x64_sys_sendmsg+0x73/0xb0 [ 419.589971] do_syscall_64+0xd0/0x4e0 [ 419.597006] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.603895] RIP: 0033:0x413bf1 [ 419.607090] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 419.630765] RSP: 002b:00007fe4d74a89c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 419.638961] RAX: ffffffffffffffda RBX: 00007fe4d74a8a58 RCX: 0000000000413bf1 [ 419.652060] RDX: 0000000000000000 RSI: 00007fe4d74a8a00 RDI: 0000000000000005 [ 419.659334] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 419.670550] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe4d74a8a40 [ 419.678778] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 419.689956] INFO: task syz-executor.4:22557 blocked for more than 140 seconds. [ 419.698303] Not tainted 4.19.90-syzkaller #0 [ 419.707156] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 419.716310] syz-executor.4 D28168 22557 7039 0x00000004 [ 419.727777] Call Trace: [ 419.730395] __schedule+0x78c/0x1c10 [ 419.735205] ? pci_mmcfg_check_reserved+0x120/0x120 [ 419.740325] ? kasan_check_read+0x11/0x20 [ 419.748531] schedule+0x7f/0x1b0 [ 419.752891] schedule_preempt_disabled+0x13/0x20 [ 419.757640] __mutex_lock+0x806/0x1210 [ 419.765447] ? genl_rcv_msg+0x10e/0x140 [ 419.769422] ? mutex_trylock+0x1e0/0x1e0 [ 419.774431] ? netdev_pick_tx+0x2b0/0x2b0 [ 419.778614] ? memcpy+0x45/0x50 [ 419.786433] mutex_lock_nested+0x16/0x20 [ 419.790489] ? mutex_lock_nested+0x16/0x20 [ 419.795691] genl_rcv_msg+0x10e/0x140 [ 419.799520] netlink_rcv_skb+0x142/0x390 [ 419.807488] ? genl_family_rcv_msg+0xe80/0xe80 [ 419.813007] ? netlink_ack+0x990/0x990 [ 419.816896] genl_rcv+0x23/0x40 [ 419.820163] netlink_unicast+0x445/0x640 [ 419.828457] ? netlink_attachskb+0x6d0/0x6d0 [ 419.833900] netlink_sendmsg+0x765/0xc50 [ 419.837992] ? netlink_unicast+0x640/0x640 [ 419.846346] ? copy_msghdr_from_user+0x20b/0x3e0 [ 419.852110] ? selinux_socket_sendmsg+0x31/0x40 [ 419.856780] ? netlink_unicast+0x640/0x640 [ 419.865164] sock_sendmsg+0xb5/0xf0 [ 419.868806] ___sys_sendmsg+0x647/0x950 [ 419.873807] ? find_held_lock+0x36/0x1d0 [ 419.877876] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 419.887567] ? __fget+0x278/0x400 [ 419.892003] ? kasan_check_read+0x11/0x20 [ 419.896150] ? __fget+0x295/0x400 [ 419.899595] ? ksys_dup3+0x2e0/0x2e0 [ 419.907263] ? __fget_light+0x174/0x1e0 [ 419.912844] ? __fdget+0xe/0x10 [ 419.916121] ? lock_downgrade+0x860/0x860 [ 419.920260] __sys_sendmsg+0xd9/0x180 [ 419.928127] ? __ia32_sys_shutdown+0x70/0x70 [ 419.933537] ? __fd_install+0x179/0x4b0 [ 419.937607] ? fd_install+0x47/0x60 [ 419.945161] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.950528] __x64_sys_sendmsg+0x73/0xb0 [ 419.955614] do_syscall_64+0xd0/0x4e0 [ 419.959412] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.969500] RIP: 0033:0x413bf1 [ 419.973687] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 419.997278] RSP: 002b:00007fa3471829c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 420.005223] RAX: ffffffffffffffda RBX: 00007fa347182a58 RCX: 0000000000413bf1 [ 420.017172] RDX: 0000000000000000 RSI: 00007fa347182a00 RDI: 0000000000000005 [ 420.024659] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 420.036594] R10: 0000000000000004 R11: 0000000000000293 R12: 00007fa347182a40 [ 420.044793] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 420.056749] INFO: task syz-executor.4:22561 blocked for more than 140 seconds. [ 420.064284] Not tainted 4.19.90-syzkaller #0 [ 420.069206] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 420.081899] syz-executor.4 D27720 22561 7039 0x00000004 [ 420.087536] Call Trace: [ 420.090118] __schedule+0x78c/0x1c10 [ 420.096927] ? pci_mmcfg_check_reserved+0x120/0x120 [ 420.103524] ? kasan_check_read+0x11/0x20 [ 420.107673] schedule+0x7f/0x1b0 [ 420.114100] schedule_preempt_disabled+0x13/0x20 [ 420.118852] __mutex_lock+0x806/0x1210 [ 420.124506] ? genl_rcv_msg+0x10e/0x140 [ 420.128484] ? mutex_trylock+0x1e0/0x1e0 [ 420.135598] ? netdev_pick_tx+0x2b0/0x2b0 [ 420.139756] ? memcpy+0x45/0x50 [ 420.144637] mutex_lock_nested+0x16/0x20 [ 420.148693] ? mutex_lock_nested+0x16/0x20 [ 420.156048] genl_rcv_msg+0x10e/0x140 [ 420.159857] netlink_rcv_skb+0x142/0x390 [ 420.165760] ? genl_family_rcv_msg+0xe80/0xe80 [ 420.170351] ? netlink_ack+0x990/0x990 [ 420.177949] genl_rcv+0x23/0x40 [ 420.182961] netlink_unicast+0x445/0x640 [ 420.187089] ? netlink_attachskb+0x6d0/0x6d0 [ 420.194563] netlink_sendmsg+0x765/0xc50 [ 420.198722] ? netlink_unicast+0x640/0x640 [ 420.204553] ? copy_msghdr_from_user+0x20b/0x3e0 [ 420.209308] ? selinux_socket_sendmsg+0x31/0x40 [ 420.217176] ? netlink_unicast+0x640/0x640 [ 420.223053] sock_sendmsg+0xb5/0xf0 [ 420.226683] ___sys_sendmsg+0x647/0x950 [ 420.230647] ? find_held_lock+0x36/0x1d0 [ 420.237909] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 420.244254] ? __fget+0x278/0x400 [ 420.247711] ? kasan_check_read+0x11/0x20 [ 420.254935] ? __fget+0x295/0x400 [ 420.258396] ? ksys_dup3+0x2e0/0x2e0 [ 420.263706] ? __fget_light+0x174/0x1e0 [ 420.267708] ? __fdget+0xe/0x10 [ 420.270982] ? lock_downgrade+0x860/0x860 [ 420.278299] __sys_sendmsg+0xd9/0x180 [ 420.283746] ? __ia32_sys_shutdown+0x70/0x70 [ 420.288156] ? __fd_install+0x179/0x4b0 [ 420.295386] ? fd_install+0x47/0x60 [ 420.299031] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 420.306651] __x64_sys_sendmsg+0x73/0xb0 [ 420.310718] do_syscall_64+0xd0/0x4e0 [ 420.317598] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 420.324365] RIP: 0033:0x413bf1 [ 420.327556] Code: f8 ff 89 c3 66 41 89 84 24 c8 00 00 00 75 86 66 2e 0f 1f 84 00 00 00 00 00 ba 29 f8 ff ff eb 95 66 0f 1f 84 00 00 00 00 00 e8 73 ff ff 8b 18 ba 00 04 00 00 48 89 e6 48 89 c5 89 df e8 c7 c8 [ 420.351212] RSP: 002b:00007fa3471619c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 420.358940] RAX: ffffffffffffffda RBX: 00007fa347161a58 RCX: 0000000000413bf1 [ 420.370044] RDX: 0000000000000000 RSI: 00007fa347161a00 RDI: 0000000000000005 [ 420.378167] RBP: 0000000000000005 R08: 000000000000000b R09: 0000000000000000 [ 420.389433] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fa347161a40 [ 420.397667] R13: 00000000004d17d0 R14: 00000000004e0b68 R15: 00000000ffffffff [ 420.408789] [ 420.408789] Showing all locks held in the system: [ 420.415973] 1 lock held by khungtaskd/1039: [ 420.420293] #0: 00000000f7e68c15 (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x27a [ 420.434194] 1 lock held by rsyslogd/6789: [ 420.438350] #0: 000000004b78402d (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 [ 420.449531] 2 locks held by getty/6911: [ 420.456553] #0: 0000000082994582 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 420.466407] #1: 00000000ff8c4f9a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1910 [ 420.478394] 2 locks held by getty/6912: [ 420.483982] #0: 000000008873e601 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 420.495312] #1: 00000000990b1b75 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1910 [ 420.505890] 2 locks held by getty/6913: [ 420.509867] #0: 00000000899a7f67 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 420.522808] #1: 00000000c959ba02 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1910 [ 420.534006] 2 locks held by getty/6914: [ 420.537992] #0: 000000006bb81dba (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 420.548729] #1: 00000000a1b03adc (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1910 [ 420.560022] 2 locks held by getty/6915: [ 420.568144] #0: 0000000083733001 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 420.578722] #1: 00000000885c9912 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1910 [ 420.590990] 2 locks held by getty/6916: [ 420.597346] #0: 00000000b4921334 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 420.608342] #1: 000000008df3c36e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1910 [ 420.619792] 2 locks held by getty/6917: [ 420.626238] #0: 00000000509c20ef (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 420.636838] #1: 000000002c8c4ca8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x1910 [ 420.648023] 3 locks held by syz-executor.1/22540: [ 420.655189] 2 locks held by syz-executor.3/22552: [ 420.660027] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.669317] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.679516] 2 locks held by syz-executor.3/22558: [ 420.687491] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.697416] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.707476] 2 locks held by syz-executor.0/22548: [ 420.714683] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.724051] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.734142] 2 locks held by syz-executor.0/22556: [ 420.739007] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.748282] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.758334] 2 locks held by syz-executor.2/22550: [ 420.767191] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.776444] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.786524] 2 locks held by syz-executor.2/22559: [ 420.793797] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.800756] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.810922] 2 locks held by syz-executor.5/22554: [ 420.818147] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.828128] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.838193] 2 locks held by syz-executor.5/22560: [ 420.845386] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.854645] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.864693] 2 locks held by syz-executor.4/22557: [ 420.869527] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.878888] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.888937] 2 locks held by syz-executor.4/22561: [ 420.896127] #0: 0000000018aead69 (cb_lock){++++}, at: genl_rcv+0x14/0x40 [ 420.905636] #1: 000000008e69d004 (genl_mutex){+.+.}, at: genl_rcv_msg+0x10e/0x140 [ 420.915997] [ 420.917640] ============================================= [ 420.917640] [ 420.927912] NMI backtrace for cpu 0 [ 420.931611] CPU: 0 PID: 1039 Comm: khungtaskd Not tainted 4.19.90-syzkaller #0 [ 420.938959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 420.948305] Call Trace: [ 420.950942] dump_stack+0x123/0x177 [ 420.954565] nmi_cpu_backtrace.cold.4+0x3e/0x76 [ 420.959222] ? lapic_can_unplug_cpu.cold.29+0x3f/0x3f [ 420.964402] nmi_trigger_cpumask_backtrace+0xe6/0x11a [ 420.969580] arch_trigger_cpumask_backtrace+0x14/0x20 [ 420.974759] watchdog+0x5c3/0xb40 [ 420.978211] kthread+0x324/0x3e0 [ 420.981578] ? hungtask_pm_notify+0x40/0x40 [ 420.985891] ? kthread_cancel_delayed_work_sync+0x10/0x10 [ 420.991443] ret_from_fork+0x24/0x30 [ 420.995255] Sending NMI from CPU 0 to CPUs 1: [ 421.000291] NMI backtrace for cpu 1 [ 421.000293] CPU: 1 PID: 22540 Comm: syz-executor.1 Not tainted 4.19.90-syzkaller #0 [ 421.000295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 421.000296] RIP: 0010:check_memory_region+0x117/0x1b0 [ 421.000298] Code: 00 4d 85 c0 75 3e 4d 89 e0 49 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 <74> 08 e9 8c 00 00 00 48 89 d8 4c 39 c0 74 97 80 38 00 48 8d 58 01 [ 421.000300] RSP: 0018:ffff88808708ec58 EFLAGS: 00000246 [ 421.000302] RAX: ffffed1015d64733 RBX: 1ffff11015d64732 RCX: ffffffff81515ea1 [ 421.000303] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880aeb23990 [ 421.000305] RBP: ffff88808708ec70 R08: ffffed1015d64733 R09: ffffed1015d64732 [ 421.000306] R10: ffffed1015d64732 R11: ffff8880aeb23993 R12: ffffed1015d64733 [ 421.000307] R13: ffff88808708ed70 R14: ffff8880a0b80940 R15: ffff88808708f060 [ 421.000309] FS: 00007f156a3e8700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 421.000310] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 421.000311] CR2: ffffffffff600400 CR3: 000000008d79e000 CR4: 00000000001406e0 [ 421.000313] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 421.000314] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 421.000315] Call Trace: [ 421.000316] kasan_check_read+0x11/0x20 [ 421.000317] rcu_dynticks_curr_cpu_in_eqs+0x51/0xb0 [ 421.000318] rcu_is_watching+0x10/0x30 [ 421.000319] rcu_read_lock_held+0x87/0xc0 [ 421.000321] tipc_sk_lookup+0x60e/0x950 [ 421.000322] ? __lock_is_held+0xb5/0x140 [ 421.000323] ? __tipc_nl_add_sk+0x3e0/0x3e0 [ 421.000324] ? nla_parse+0x197/0x280 [ 421.000325] tipc_nl_publ_dump+0x1bf/0xcce [ 421.000326] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 421.000327] ? tipc_nl_sk_dump+0x20/0x20 [ 421.000329] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 421.000330] ? trace_hardirqs_on_caller+0x28/0x180 [ 421.000331] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 421.000332] __tipc_nl_compat_dumpit.isra.11+0x1e0/0x960 [ 421.000333] ? kasan_unpoison_shadow+0x35/0x50 [ 421.000334] ? kasan_kmalloc+0xc7/0xe0 [ 421.000336] ? __tipc_add_link_prop.isra.9+0x1c0/0x1c0 [ 421.000337] ? __nla_put+0x20/0x30 [ 421.000338] tipc_nl_compat_sk_dump+0x4ea/0x990 [ 421.000339] ? __tipc_nl_compat_dumpit.isra.11+0x960/0x960 [ 421.000340] ? find_held_lock+0x36/0x1d0 [ 421.000341] ? tipc_nl_sk_dump+0x20/0x20 [ 421.000342] ? tipc_tlv_sprintf+0x2c0/0x2c0 [ 421.000344] ? rhashtable_walk_stop+0x100/0x2b0 [ 421.000345] ? lock_downgrade+0x860/0x860 [ 421.000346] __tipc_nl_compat_dumpit.isra.11+0x2b0/0x960 [ 421.000347] ? kasan_unpoison_shadow+0x35/0x50 [ 421.000348] ? __tipc_add_link_prop.isra.9+0x1c0/0x1c0 [ 421.000349] ? mark_held_locks+0x130/0x130 [ 421.000351] tipc_nl_compat_dumpit+0x1e3/0x4c0 [ 421.000352] tipc_nl_compat_recv+0x460/0xa70 [ 421.000353] ? tipc_nl_compat_doit+0x540/0x540 [ 421.000354] ? genl_rcv_msg+0x10e/0x140 [ 421.000355] ? tipc_dump_start+0x90/0x90 [ 421.000356] ? __tipc_nl_compat_dumpit.isra.11+0x960/0x960 [ 421.000357] ? lock_acquire+0x173/0x3d0 [ 421.000358] ? genl_rcv_msg+0x10e/0x140 [ 421.000359] genl_family_rcv_msg+0x591/0xe80 [ 421.000361] ? genl_unregister_family+0x660/0x660 [ 421.000362] ? netdev_pick_tx+0x2b0/0x2b0 [ 421.000363] ? mark_held_locks+0x130/0x130 [ 421.000364] genl_rcv_msg+0xa7/0x140 [ 421.000365] netlink_rcv_skb+0x142/0x390 [ 421.000366] ? genl_family_rcv_msg+0xe80/0xe80 [ 421.000367] ? netlink_ack+0x990/0x990 [ 421.000368] genl_rcv+0x23/0x40 [ 421.000369] netlink_unicast+0x445/0x640 [ 421.000370] ? netlink_attachskb+0x6d0/0x6d0 [ 421.000372] netlink_sendmsg+0x765/0xc50 [ 421.000373] ? netlink_unicast+0x640/0x640 [ 421.000374] ? copy_msghdr_from_user+0x20b/0x3e0 [ 421.000375] ? selinux_socket_sendmsg+0x31/0x40 [ 421.000376] ? netlink_unicast+0x640/0x640 [ 421.000377] sock_sendmsg+0xb5/0xf0 [ 421.000378] ___sys_sendmsg+0x647/0x950 [ 421.000379] ? find_held_lock+0x36/0x1d0 [ 421.000381] ? copy_msghdr_from_user+0x3e0/0x3e0 [ 421.000382] ? __fget+0x278/0x400 [ 421.000383] ? kasan_check_read+0x11/0x20 [ 421.000384] ? __fget+0x295/0x400 [ 421.000385] ? ksys_dup3+0x2e0/0x2e0 [ 421.000386] ? find_held_lock+0x36/0x1d0 [ 421.000387] ? __fget_light+0x174/0x1e0 [ 421.000389] ? lock_downgrade+0x860/0x860 [ 421.000390] ? __fdget+0xe/0x10 [ 421.000391] __sys_sendmsg+0xd9/0x180 [ 421.000392] ? __ia32_sys_shutdown+0x70/0x70 [ 421.000393] ? kasan_check_read+0x11/0x20 [ 421.000394] ? _copy_to_user+0x91/0xb0 [ 421.000395] ? put_timespec64+0xa9/0x100 [ 421.000396] ? nsecs_to_jiffies+0x20/0x20 [ 421.000397] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 421.000399] __x64_sys_sendmsg+0x73/0xb0 [ 421.000400] do_syscall_64+0xd0/0x4e0 [ 421.000401] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 421.000402] RIP: 0033:0x459f39 [ 421.000404] 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 [ 421.000405] RSP: 002b:00007f156a3e7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 421.000408] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459f39 [ 421.000409] RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004 [ 421.000410] RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 [ 421.000412] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f156a3e86d4 [ 421.000413] R13: 00000000004cf980 R14: 00000000004de090 R15: 00000000ffffffff [ 421.006083] Kernel panic - not syncing: hung_task: blocked tasks [ 421.530283] CPU: 0 PID: 1039 Comm: khungtaskd Not tainted 4.19.90-syzkaller #0 [ 421.537634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 421.546976] Call Trace: [ 421.549560] dump_stack+0x123/0x177 [ 421.553186] panic+0x1cd/0x375 [ 421.556368] ? __warn_printk+0xd6/0xd6 [ 421.560252] watchdog+0x5d4/0xb40 [ 421.563709] kthread+0x324/0x3e0 [ 421.567067] ? hungtask_pm_notify+0x40/0x40 [ 421.571470] ? kthread_cancel_delayed_work_sync+0x10/0x10 [ 421.576999] ret_from_fork+0x24/0x30 [ 421.582397] Kernel Offset: disabled [ 421.586090] Rebooting in 86400 seconds..