[ 24.321819] audit: type=1800 audit(1539478907.970:21): pid=5201 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.352574] audit: type=1800 audit(1539478907.970:22): pid=5201 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 25.247369] sshd (5269) used greatest stack depth: 15496 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.18' (ECDSA) to the list of known hosts. 2018/10/14 01:03:21 parsed 1 programs 2018/10/14 01:03:23 executed programs: 0 syzkaller login: [ 119.961550] IPVS: ftp: loaded support on port[0] = 21 [ 119.965090] IPVS: ftp: loaded support on port[0] = 21 [ 119.968740] IPVS: ftp: loaded support on port[0] = 21 [ 119.977026] IPVS: ftp: loaded support on port[0] = 21 [ 119.993316] IPVS: ftp: loaded support on port[0] = 21 [ 120.004746] IPVS: ftp: loaded support on port[0] = 21 [ 120.842578] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.849166] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.856316] device bridge_slave_0 entered promiscuous mode [ 120.889873] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.896217] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.908053] device bridge_slave_1 entered promiscuous mode [ 120.918363] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.926750] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.933770] device bridge_slave_0 entered promiscuous mode [ 120.941666] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.948009] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.955508] device bridge_slave_0 entered promiscuous mode [ 120.964756] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.971971] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.978928] device bridge_slave_0 entered promiscuous mode [ 120.986180] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.992670] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.999709] device bridge_slave_0 entered promiscuous mode [ 121.007927] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.017677] bridge0: port 1(bridge_slave_0) entered disabled state [ 121.024742] device bridge_slave_0 entered promiscuous mode [ 121.032990] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.043186] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.050498] device bridge_slave_1 entered promiscuous mode [ 121.058616] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.065655] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.073084] device bridge_slave_1 entered promiscuous mode [ 121.079800] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 121.088690] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.096555] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.104665] device bridge_slave_1 entered promiscuous mode [ 121.112420] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.118761] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.127129] device bridge_slave_1 entered promiscuous mode [ 121.134207] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.143647] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.151220] device bridge_slave_1 entered promiscuous mode [ 121.157908] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 121.166056] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 121.175946] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 121.192542] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 121.203917] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 121.216993] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 121.225140] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 121.234860] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 121.260115] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 121.269739] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 121.344485] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 121.421631] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 121.465123] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 121.489280] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 121.514349] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 121.531373] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 121.543148] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 121.556476] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 121.573154] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 121.587565] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 121.613002] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 121.635288] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 121.648738] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 121.659061] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 121.670153] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 121.683805] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 121.702978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 121.713879] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 121.728117] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 121.738925] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 121.750273] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 121.760443] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 121.767373] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 121.779901] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 121.795151] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 121.804042] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 121.811242] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 121.820331] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 121.827888] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 121.864654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 121.872800] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 121.887082] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 121.895033] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 121.903314] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 121.924238] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 121.947391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 121.964043] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 122.026100] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 122.038976] team0: Port device team_slave_0 added [ 122.107984] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 122.120299] team0: Port device team_slave_0 added [ 122.128369] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 122.140861] team0: Port device team_slave_1 added [ 122.148897] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 122.157336] team0: Port device team_slave_0 added [ 122.165678] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 122.175578] team0: Port device team_slave_0 added [ 122.185682] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 122.199057] team0: Port device team_slave_0 added [ 122.207126] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 122.223713] team0: Port device team_slave_0 added [ 122.229093] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 122.243498] team0: Port device team_slave_1 added [ 122.253962] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 122.277506] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 122.286066] team0: Port device team_slave_1 added [ 122.293293] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 122.301038] team0: Port device team_slave_1 added [ 122.308000] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 122.317973] team0: Port device team_slave_1 added [ 122.328725] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 122.340830] team0: Port device team_slave_1 added [ 122.352044] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 122.383258] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 122.398472] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 122.425245] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 122.435108] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 122.450291] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 122.459119] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 122.468028] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 122.476163] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 122.487181] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 122.518422] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 122.529583] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 122.537457] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 122.559327] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 122.568017] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 122.576163] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 122.587358] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 122.595854] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 122.609863] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 122.621656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 122.633381] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 122.649855] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 122.659302] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 122.672829] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 122.685487] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 122.694466] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 122.703071] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 122.712124] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 122.720323] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 122.729779] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 122.739709] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 122.756926] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 122.770868] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 122.779281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 122.796290] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 122.804538] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 122.812690] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 122.820893] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 122.829124] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 122.839576] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 122.855505] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 122.875859] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 122.890105] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 122.899281] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 122.916067] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 122.926892] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 122.949996] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 123.455604] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.462130] bridge0: port 2(bridge_slave_1) entered forwarding state [ 123.469044] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.475468] bridge0: port 1(bridge_slave_0) entered forwarding state [ 123.491479] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 123.622973] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.629423] bridge0: port 2(bridge_slave_1) entered forwarding state [ 123.636113] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.642546] bridge0: port 1(bridge_slave_0) entered forwarding state [ 123.659962] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 123.669400] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.676735] bridge0: port 2(bridge_slave_1) entered forwarding state [ 123.683471] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.689889] bridge0: port 1(bridge_slave_0) entered forwarding state [ 123.698730] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 123.707578] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.714003] bridge0: port 2(bridge_slave_1) entered forwarding state [ 123.720732] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.727110] bridge0: port 1(bridge_slave_0) entered forwarding state [ 123.734702] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 123.741266] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.747634] bridge0: port 2(bridge_slave_1) entered forwarding state [ 123.754364] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.760744] bridge0: port 1(bridge_slave_0) entered forwarding state [ 123.768275] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 123.774951] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 123.782952] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 123.790824] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 123.797951] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 123.805327] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 123.978370] bridge0: port 2(bridge_slave_1) entered blocking state [ 123.984814] bridge0: port 2(bridge_slave_1) entered forwarding state [ 123.991538] bridge0: port 1(bridge_slave_0) entered blocking state [ 123.997903] bridge0: port 1(bridge_slave_0) entered forwarding state [ 124.011082] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 124.789706] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 126.492695] 8021q: adding VLAN 0 to HW filter on device bond0 [ 126.512592] 8021q: adding VLAN 0 to HW filter on device bond0 [ 126.543118] 8021q: adding VLAN 0 to HW filter on device bond0 [ 126.728420] 8021q: adding VLAN 0 to HW filter on device bond0 [ 126.768923] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 126.790205] 8021q: adding VLAN 0 to HW filter on device bond0 [ 126.799590] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 126.811818] 8021q: adding VLAN 0 to HW filter on device bond0 [ 126.823761] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 126.998816] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 127.056959] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 127.065318] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 127.072670] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 127.088812] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 127.105055] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 127.118254] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 127.131351] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 127.137531] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 127.146636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 127.157123] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 127.168558] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 127.310759] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 127.319978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 127.330862] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 127.366393] 8021q: adding VLAN 0 to HW filter on device team0 [ 127.407670] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 127.418482] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 127.428102] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 127.445168] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 127.454352] 8021q: adding VLAN 0 to HW filter on device team0 [ 127.465353] 8021q: adding VLAN 0 to HW filter on device team0 [ 127.475846] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 127.485689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 127.649773] 8021q: adding VLAN 0 to HW filter on device team0 [ 127.661406] 8021q: adding VLAN 0 to HW filter on device team0 [ 127.730025] 8021q: adding VLAN 0 to HW filter on device team0 2018/10/14 01:03:32 executed programs: 6 [ 288.629562] INFO: task syz-executor0:6925 blocked for more than 140 seconds. [ 288.636962] Not tainted 4.19.0-rc7+ #140 [ 288.643234] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 288.651658] syz-executor0 D24952 6925 5376 0x00000004 [ 288.657329] Call Trace: [ 288.666696] __schedule+0x86c/0x1ed0 [ 288.671057] ? print_usage_bug+0xc0/0xc0 [ 288.675155] ? __sched_text_start+0x8/0x8 [ 288.679330] ? print_usage_bug+0xc0/0xc0 [ 288.683980] ? graph_lock+0x170/0x170 [ 288.687796] ? graph_lock+0x170/0x170 [ 288.692135] ? graph_lock+0x170/0x170 [ 288.695960] ? graph_lock+0x170/0x170 [ 288.700287] ? find_held_lock+0x36/0x1c0 [ 288.704384] schedule+0xfe/0x460 [ 288.707772] ? __mutex_lock+0xbe2/0x1700 [ 288.712475] ? __schedule+0x1ed0/0x1ed0 [ 288.716513] ? kasan_check_read+0x11/0x20 [ 288.721177] ? do_raw_spin_unlock+0xa7/0x2f0 [ 288.725614] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 288.730714] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 288.736179] ? mutex_destroy+0x200/0x200 [ 288.740757] ? do_raw_spin_lock+0xc1/0x200 [ 288.745018] schedule_preempt_disabled+0x13/0x20 [ 288.750273] __mutex_lock+0xbe7/0x1700 [ 288.754179] ? __lock_acquire+0x7ec/0x4ec0 [ 288.758479] ? genl_rcv_msg+0x13a/0x168 [ 288.763044] ? mutex_trylock+0x2b0/0x2b0 [ 288.767134] ? mark_held_locks+0x130/0x130 [ 288.772972] ? plist_requeue+0x620/0x620 [ 288.777064] ? __netlink_lookup+0x5b6/0xa90 [ 288.781955] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 288.787511] ? __radix_tree_lookup+0x358/0x4c0 [ 288.792603] ? __radix_tree_insert+0x8f0/0x8f0 [ 288.797243] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 288.803579] ? lock_acquire+0x1ed/0x520 [ 288.807590] ? genl_rcv+0x19/0x40 [ 288.811683] mutex_lock_nested+0x16/0x20 [ 288.815775] ? mutex_lock_nested+0x16/0x20 [ 288.820593] genl_rcv_msg+0x13a/0x168 [ 288.824418] netlink_rcv_skb+0x172/0x440 [ 288.828501] ? genl_family_rcv_msg+0x1140/0x1140 [ 288.833857] ? netlink_ack+0xb80/0xb80 [ 288.837784] genl_rcv+0x28/0x40 [ 288.841532] netlink_unicast+0x5a5/0x760 [ 288.845620] ? netlink_attachskb+0x9a0/0x9a0 [ 288.850496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 288.856052] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 288.861552] netlink_sendmsg+0xa18/0xfc0 [ 288.865648] ? netlink_unicast+0x760/0x760 [ 288.870424] ? aa_sock_msg_perm.isra.12+0xba/0x160 [ 288.875379] ? apparmor_socket_sendmsg+0x29/0x30 [ 288.880622] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 288.886250] ? security_socket_sendmsg+0x94/0xc0 [ 288.891544] ? netlink_unicast+0x760/0x760 [ 288.895840] sock_sendmsg+0xd5/0x120 [ 288.901034] ___sys_sendmsg+0x7fd/0x930 [ 288.905041] ? copy_msghdr_from_user+0x580/0x580 [ 288.910303] ? __fd_install+0x2b5/0x8f0 [ 288.914310] ? __fget_light+0x2e9/0x430 [ 288.918299] ? fget_raw+0x20/0x20 [ 288.922299] ? lock_downgrade+0x900/0x900 [ 288.926474] ? lock_release+0x970/0x970 [ 288.931037] ? arch_local_save_flags+0x40/0x40 [ 288.935694] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 288.941730] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 288.947289] ? sockfd_lookup_light+0xc5/0x160 [ 288.952341] __sys_sendmsg+0x11d/0x280 [ 288.956259] ? __ia32_sys_shutdown+0x80/0x80 [ 288.961168] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 288.966788] ? put_timespec64+0x10f/0x1b0 [ 288.971480] ? do_syscall_64+0x9a/0x820 [ 288.975476] ? do_syscall_64+0x9a/0x820 [ 288.979957] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 288.985435] __x64_sys_sendmsg+0x78/0xb0 [ 288.989969] do_syscall_64+0x1b9/0x820 [ 288.993909] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 288.999289] ? syscall_return_slowpath+0x5e0/0x5e0 [ 289.004751] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 289.010072] ? trace_hardirqs_on_caller+0x310/0x310 [ 289.015122] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 289.020628] ? prepare_exit_to_usermode+0x291/0x3b0 [ 289.025672] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 289.032011] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 289.037220] RIP: 0033:0x457569 [ 289.040891] Code: Bad RIP value. [ 289.044267] RSP: 002b:00007f805f83dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 289.052589] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 289.060408] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 [ 289.067697] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 289.075579] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f805f83e6d4 [ 289.083333] R13: 00000000004c387d R14: 00000000004d56d0 R15: 00000000ffffffff [ 289.091097] INFO: task syz-executor5:6923 blocked for more than 140 seconds. [ 289.098293] Not tainted 4.19.0-rc7+ #140 [ 289.103262] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 289.111598] syz-executor5 D24952 6923 5384 0x00000004 [ 289.117252] Call Trace: [ 289.120318] __schedule+0x86c/0x1ed0 [ 289.124057] ? print_usage_bug+0xc0/0xc0 [ 289.128138] ? __sched_text_start+0x8/0x8 [ 289.132814] ? print_usage_bug+0xc0/0xc0 [ 289.136900] ? graph_lock+0x170/0x170 [ 289.141173] ? graph_lock+0x170/0x170 [ 289.145000] ? graph_lock+0x170/0x170 [ 289.148817] ? graph_lock+0x170/0x170 [ 289.153169] ? find_held_lock+0x36/0x1c0 [ 289.157267] schedule+0xfe/0x460 [ 289.162158] ? __mutex_lock+0xbe2/0x1700 [ 289.166248] ? __schedule+0x1ed0/0x1ed0 [ 289.170798] ? kasan_check_read+0x11/0x20 [ 289.174973] ? do_raw_spin_unlock+0xa7/0x2f0 [ 289.179951] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 289.184582] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 289.190564] ? mutex_destroy+0x200/0x200 [ 289.194650] ? do_raw_spin_lock+0xc1/0x200 [ 289.198905] schedule_preempt_disabled+0x13/0x20 [ 289.204211] __mutex_lock+0xbe7/0x1700 [ 289.208123] ? __lock_acquire+0x7ec/0x4ec0 [ 289.212851] ? genl_rcv_msg+0x13a/0x168 [ 289.216856] ? mutex_trylock+0x2b0/0x2b0 [ 289.221415] ? mark_held_locks+0x130/0x130 [ 289.225684] ? plist_requeue+0x620/0x620 [ 289.230270] ? __netlink_lookup+0x5b6/0xa90 [ 289.234624] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 289.240630] ? __radix_tree_lookup+0x358/0x4c0 [ 289.245380] ? __radix_tree_insert+0x8f0/0x8f0 [ 289.250443] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 289.256280] ? lock_acquire+0x1ed/0x520 [ 289.260724] ? genl_rcv+0x19/0x40 [ 289.264221] mutex_lock_nested+0x16/0x20 [ 289.268292] ? mutex_lock_nested+0x16/0x20 [ 289.273080] genl_rcv_msg+0x13a/0x168 [ 289.276905] netlink_rcv_skb+0x172/0x440 [ 289.281456] ? genl_family_rcv_msg+0x1140/0x1140 [ 289.286238] ? netlink_ack+0xb80/0xb80 [ 289.291740] genl_rcv+0x28/0x40 [ 289.295041] netlink_unicast+0x5a5/0x760 [ 289.299135] ? netlink_attachskb+0x9a0/0x9a0 [ 289.304123] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 289.310124] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 289.315195] netlink_sendmsg+0xa18/0xfc0 [ 289.319312] ? netlink_unicast+0x760/0x760 [ 289.324161] ? aa_sock_msg_perm.isra.12+0xba/0x160 [ 289.329116] ? apparmor_socket_sendmsg+0x29/0x30 [ 289.334344] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 289.340391] ? security_socket_sendmsg+0x94/0xc0 [ 289.345164] ? netlink_unicast+0x760/0x760 [ 289.349899] sock_sendmsg+0xd5/0x120 [ 289.354157] ___sys_sendmsg+0x7fd/0x930 [ 289.358152] ? copy_msghdr_from_user+0x580/0x580 [ 289.363423] ? __fd_install+0x2b5/0x8f0 [ 289.367430] ? __fget_light+0x2e9/0x430 [ 289.371903] ? fget_raw+0x20/0x20 [ 289.375382] ? lock_downgrade+0x900/0x900 [ 289.380015] ? lock_release+0x970/0x970 [ 289.384012] ? arch_local_save_flags+0x40/0x40 [ 289.388606] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 289.394571] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 289.400613] ? sockfd_lookup_light+0xc5/0x160 [ 289.405133] __sys_sendmsg+0x11d/0x280 [ 289.409035] ? __ia32_sys_shutdown+0x80/0x80 [ 289.413958] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 289.420974] ? put_timespec64+0x10f/0x1b0 [ 289.425148] ? do_syscall_64+0x9a/0x820 [ 289.429133] ? do_syscall_64+0x9a/0x820 [ 289.433630] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 289.439106] __x64_sys_sendmsg+0x78/0xb0 [ 289.443806] do_syscall_64+0x1b9/0x820 [ 289.447724] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 289.453612] ? syscall_return_slowpath+0x5e0/0x5e0 [ 289.458568] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 289.463890] ? trace_hardirqs_on_caller+0x310/0x310 [ 289.468927] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 289.474419] ? prepare_exit_to_usermode+0x291/0x3b0 [ 289.479912] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 289.484787] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 289.490441] RIP: 0033:0x457569 [ 289.493654] Code: Bad RIP value. [ 289.497022] RSP: 002b:00007f00193a4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 289.505211] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 289.513069] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 [ 289.520806] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 289.528090] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f00193a56d4 [ 289.535943] R13: 00000000004c387d R14: 00000000004d56d0 R15: 00000000ffffffff [ 289.543830] INFO: task syz-executor1:6930 blocked for more than 140 seconds. [ 289.552656] Not tainted 4.19.0-rc7+ #140 [ 289.557381] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 289.565735] syz-executor1 D24952 6930 5377 0x00000004 [ 289.571883] Call Trace: [ 289.574501] __schedule+0x86c/0x1ed0 [ 289.578229] ? print_usage_bug+0xc0/0xc0 [ 289.582898] ? __sched_text_start+0x8/0x8 [ 289.587075] ? print_usage_bug+0xc0/0xc0 [ 289.591600] ? graph_lock+0x170/0x170 [ 289.595423] ? graph_lock+0x170/0x170 [ 289.599239] ? graph_lock+0x170/0x170 [ 289.603524] ? graph_lock+0x170/0x170 [ 289.607350] ? find_held_lock+0x36/0x1c0 [ 289.611891] schedule+0xfe/0x460 [ 289.615275] ? __mutex_lock+0xbe2/0x1700 [ 289.619834] ? __schedule+0x1ed0/0x1ed0 [ 289.623835] ? kasan_check_read+0x11/0x20 [ 289.627998] ? do_raw_spin_unlock+0xa7/0x2f0 [ 289.632900] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 289.637501] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 289.643472] ? mutex_destroy+0x200/0x200 [ 289.647567] ? do_raw_spin_lock+0xc1/0x200 [ 289.652275] schedule_preempt_disabled+0x13/0x20 [ 289.657052] __mutex_lock+0xbe7/0x1700 [ 289.661425] ? __lock_acquire+0x7ec/0x4ec0 [ 289.665678] ? genl_rcv_msg+0x13a/0x168 [ 289.670151] ? mutex_trylock+0x2b0/0x2b0 [ 289.674243] ? mark_held_locks+0x130/0x130 [ 289.678514] ? plist_requeue+0x620/0x620 [ 289.684188] ? __netlink_lookup+0x5b6/0xa90 [ 289.688547] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 289.694558] ? __radix_tree_lookup+0x358/0x4c0 [ 289.699169] ? __radix_tree_insert+0x8f0/0x8f0 [ 289.704266] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 289.710589] ? lock_acquire+0x1ed/0x520 [ 289.714582] ? genl_rcv+0x19/0x40 [ 289.718063] mutex_lock_nested+0x16/0x20 [ 289.722665] ? mutex_lock_nested+0x16/0x20 [ 289.726945] genl_rcv_msg+0x13a/0x168 [ 289.731212] netlink_rcv_skb+0x172/0x440 [ 289.735301] ? genl_family_rcv_msg+0x1140/0x1140 [ 289.740530] ? netlink_ack+0xb80/0xb80 [ 289.744452] genl_rcv+0x28/0x40 [ 289.747748] netlink_unicast+0x5a5/0x760 [ 289.752363] ? netlink_attachskb+0x9a0/0x9a0 [ 289.756796] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 289.762975] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 289.768021] netlink_sendmsg+0xa18/0xfc0 [ 289.772601] ? netlink_unicast+0x760/0x760 [ 289.776881] ? aa_sock_msg_perm.isra.12+0xba/0x160 [ 289.782442] ? apparmor_socket_sendmsg+0x29/0x30 [ 289.787228] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 289.793259] ? security_socket_sendmsg+0x94/0xc0 [ 289.798039] ? netlink_unicast+0x760/0x760 [ 289.802775] sock_sendmsg+0xd5/0x120 [ 289.806513] ___sys_sendmsg+0x7fd/0x930 [ 289.812058] ? copy_msghdr_from_user+0x580/0x580 [ 289.816835] ? __fd_install+0x2b5/0x8f0 [ 289.821320] ? __fget_light+0x2e9/0x430 [ 289.825317] ? fget_raw+0x20/0x20 [ 289.828791] ? lock_downgrade+0x900/0x900 [ 289.833429] ? lock_release+0x970/0x970 [ 289.837423] ? arch_local_save_flags+0x40/0x40 [ 289.842494] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 289.848004] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 289.854022] ? sockfd_lookup_light+0xc5/0x160 [ 289.858542] __sys_sendmsg+0x11d/0x280 [ 289.862908] ? __ia32_sys_shutdown+0x80/0x80 [ 289.867340] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 289.873367] ? put_timespec64+0x10f/0x1b0 [ 289.877543] ? do_syscall_64+0x9a/0x820 [ 289.882013] ? do_syscall_64+0x9a/0x820 [ 289.886019] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 289.891955] __x64_sys_sendmsg+0x78/0xb0 [ 289.896043] do_syscall_64+0x1b9/0x820 [ 289.900402] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 289.905792] ? syscall_return_slowpath+0x5e0/0x5e0 [ 289.911197] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 289.916066] ? trace_hardirqs_on_caller+0x310/0x310 [ 289.921565] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 289.926607] ? prepare_exit_to_usermode+0x291/0x3b0 [ 289.932123] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 289.936999] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 289.943670] RIP: 0033:0x457569 [ 289.946894] Code: Bad RIP value. [ 289.950722] RSP: 002b:00007fc5ec984c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 289.958447] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 289.966179] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 [ 289.973956] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 289.981681] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc5ec9856d4 [ 289.988975] R13: 00000000004c387d R14: 00000000004d56d0 R15: 00000000ffffffff [ 289.996748] INFO: task syz-executor2:6940 blocked for more than 140 seconds. [ 290.004492] Not tainted 4.19.0-rc7+ #140 [ 290.009081] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 290.017428] syz-executor2 D24952 6940 5382 0x00000004 [ 290.023548] Call Trace: [ 290.026159] __schedule+0x86c/0x1ed0 [ 290.030440] ? print_usage_bug+0xc0/0xc0 [ 290.034529] ? __sched_text_start+0x8/0x8 [ 290.038709] ? print_usage_bug+0xc0/0xc0 [ 290.043288] ? graph_lock+0x170/0x170 [ 290.047110] ? graph_lock+0x170/0x170 [ 290.051380] ? graph_lock+0x170/0x170 [ 290.055208] ? graph_lock+0x170/0x170 [ 290.059038] ? find_held_lock+0x36/0x1c0 [ 290.063692] schedule+0xfe/0x460 [ 290.067087] ? __mutex_lock+0xbe2/0x1700 [ 290.072865] ? __schedule+0x1ed0/0x1ed0 [ 290.076868] ? kasan_check_read+0x11/0x20 [ 290.081495] ? do_raw_spin_unlock+0xa7/0x2f0 [ 290.085928] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 290.091031] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 290.096497] ? mutex_destroy+0x200/0x200 [ 290.101034] ? do_raw_spin_lock+0xc1/0x200 [ 290.105296] schedule_preempt_disabled+0x13/0x20 [ 290.110523] __mutex_lock+0xbe7/0x1700 [ 290.114430] ? __lock_acquire+0x7ec/0x4ec0 [ 290.118673] ? genl_rcv_msg+0x13a/0x168 [ 290.123148] ? mutex_trylock+0x2b0/0x2b0 [ 290.127241] ? mark_held_locks+0x130/0x130 [ 290.131975] ? plist_requeue+0x620/0x620 [ 290.136063] ? __netlink_lookup+0x5b6/0xa90 [ 290.140873] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 290.146428] ? __radix_tree_lookup+0x358/0x4c0 [ 290.151491] ? __radix_tree_insert+0x8f0/0x8f0 [ 290.156097] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 290.162372] ? lock_acquire+0x1ed/0x520 [ 290.166365] ? genl_rcv+0x19/0x40 [ 290.170309] mutex_lock_nested+0x16/0x20 [ 290.174391] ? mutex_lock_nested+0x16/0x20 [ 290.178632] genl_rcv_msg+0x13a/0x168 [ 290.182937] netlink_rcv_skb+0x172/0x440 [ 290.187021] ? genl_family_rcv_msg+0x1140/0x1140 [ 290.192285] ? netlink_ack+0xb80/0xb80 [ 290.196212] genl_rcv+0x28/0x40 [ 290.200985] netlink_unicast+0x5a5/0x760 [ 290.205075] ? netlink_attachskb+0x9a0/0x9a0 [ 290.209962] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 290.215519] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 290.221035] netlink_sendmsg+0xa18/0xfc0 [ 290.225126] ? netlink_unicast+0x760/0x760 [ 290.229844] ? aa_sock_msg_perm.isra.12+0xba/0x160 [ 290.234800] ? apparmor_socket_sendmsg+0x29/0x30 [ 290.240165] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 290.245744] ? security_socket_sendmsg+0x94/0xc0 [ 290.251023] ? netlink_unicast+0x760/0x760 [ 290.255284] sock_sendmsg+0xd5/0x120 [ 290.259010] ___sys_sendmsg+0x7fd/0x930 [ 290.263585] ? copy_msghdr_from_user+0x580/0x580 [ 290.268364] ? __fd_install+0x2b5/0x8f0 [ 290.272838] ? __fget_light+0x2e9/0x430 [ 290.276857] ? fget_raw+0x20/0x20 [ 290.280794] ? lock_downgrade+0x900/0x900 [ 290.284966] ? lock_release+0x970/0x970 [ 290.288953] ? arch_local_save_flags+0x40/0x40 [ 290.294031] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 290.299962] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 290.305523] ? sockfd_lookup_light+0xc5/0x160 [ 290.310615] __sys_sendmsg+0x11d/0x280 [ 290.314531] ? __ia32_sys_shutdown+0x80/0x80 [ 290.318953] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 290.325062] ? put_timespec64+0x10f/0x1b0 [ 290.329242] ? do_syscall_64+0x9a/0x820 [ 290.334680] ? do_syscall_64+0x9a/0x820 [ 290.338710] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 290.344654] __x64_sys_sendmsg+0x78/0xb0 [ 290.348771] do_syscall_64+0x1b9/0x820 [ 290.353135] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 290.358523] ? syscall_return_slowpath+0x5e0/0x5e0 [ 290.363924] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 290.368793] ? trace_hardirqs_on_caller+0x310/0x310 [ 290.374296] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 290.379781] ? prepare_exit_to_usermode+0x291/0x3b0 [ 290.384826] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 290.390150] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 290.395358] RIP: 0033:0x457569 [ 290.398558] Code: Bad RIP value. [ 290.402422] RSP: 002b:00007f988ec35c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 290.410619] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 290.417903] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 [ 290.425636] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 290.433365] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f988ec366d4 [ 290.441117] R13: 00000000004c387d R14: 00000000004d56d0 R15: 00000000ffffffff [ 290.448439] INFO: task syz-executor3:6942 blocked for more than 140 seconds. [ 290.456121] Not tainted 4.19.0-rc7+ #140 [ 290.462071] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 290.470975] syz-executor3 D23080 6942 5380 0x00000004 [ 290.476631] Call Trace: [ 290.479245] __schedule+0x86c/0x1ed0 [ 290.483630] ? lockdep_hardirqs_on+0x421/0x5c0 [ 290.488242] ? retint_kernel+0x2d/0x2d [ 290.492669] ? __sched_text_start+0x8/0x8 [ 290.496863] ? graph_lock+0x170/0x170 [ 290.501173] ? lock_downgrade+0x900/0x900 [ 290.505423] ? check_preemption_disabled+0x48/0x200 [ 290.511076] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 290.516895] ? kasan_check_read+0x11/0x20 [ 290.521556] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 290.526863] ? find_held_lock+0x36/0x1c0 [ 290.531410] schedule+0xfe/0x460 [ 290.534797] ? __mutex_lock+0xbe2/0x1700 [ 290.538874] ? __schedule+0x1ed0/0x1ed0 [ 290.543346] ? kasan_check_read+0x11/0x20 [ 290.547515] ? do_raw_spin_unlock+0xa7/0x2f0 [ 290.552666] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 290.557361] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 290.563292] ? mutex_destroy+0x200/0x200 [ 290.567378] ? do_raw_spin_lock+0xc1/0x200 [ 290.572207] schedule_preempt_disabled+0x13/0x20 [ 290.576992] __mutex_lock+0xbe7/0x1700 [ 290.581394] ? __lock_acquire+0x7ec/0x4ec0 [ 290.585649] ? genl_rcv_msg+0x13a/0x168 [ 290.591100] ? mutex_trylock+0x2b0/0x2b0 [ 290.595187] ? mark_held_locks+0x130/0x130 [ 290.599929] ? plist_requeue+0x620/0x620 [ 290.604018] ? __netlink_lookup+0x5b6/0xa90 [ 290.608368] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 290.614409] ? __radix_tree_lookup+0x358/0x4c0 [ 290.619026] ? __radix_tree_insert+0x8f0/0x8f0 [ 290.624106] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 290.630374] ? lock_acquire+0x1ed/0x520 [ 290.634370] ? genl_rcv+0x19/0x40 [ 290.637858] mutex_lock_nested+0x16/0x20 [ 290.642415] ? mutex_lock_nested+0x16/0x20 [ 290.646668] genl_rcv_msg+0x13a/0x168 [ 290.650976] netlink_rcv_skb+0x172/0x440 [ 290.655056] ? genl_family_rcv_msg+0x1140/0x1140 [ 290.660289] ? netlink_ack+0xb80/0xb80 [ 290.664219] genl_rcv+0x28/0x40 [ 290.667511] netlink_unicast+0x5a5/0x760 [ 290.672072] ? netlink_attachskb+0x9a0/0x9a0 [ 290.676503] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 290.682601] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 290.687633] netlink_sendmsg+0xa18/0xfc0 [ 290.692188] ? netlink_unicast+0x760/0x760 [ 290.696452] ? aa_sock_msg_perm.isra.12+0xba/0x160 [ 290.701869] ? apparmor_socket_sendmsg+0x29/0x30 [ 290.706645] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 290.712723] ? security_socket_sendmsg+0x94/0xc0 [ 290.717500] ? netlink_unicast+0x760/0x760 [ 290.723352] sock_sendmsg+0xd5/0x120 [ 290.727088] ___sys_sendmsg+0x7fd/0x930 [ 290.731570] ? copy_msghdr_from_user+0x580/0x580 [ 290.736348] ? __fd_install+0x2b5/0x8f0 [ 290.740962] ? __fget_light+0x2e9/0x430 [ 290.744963] ? fget_raw+0x20/0x20 [ 290.748437] ? lock_downgrade+0x900/0x900 [ 290.753181] ? lock_release+0x970/0x970 [ 290.757183] ? arch_local_save_flags+0x40/0x40 [ 290.762314] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 290.767798] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 290.773854] ? sockfd_lookup_light+0xc5/0x160 [ 290.778378] __sys_sendmsg+0x11d/0x280 [ 290.782751] ? __ia32_sys_shutdown+0x80/0x80 [ 290.787188] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 290.793322] ? put_timespec64+0x10f/0x1b0 [ 290.797502] ? do_syscall_64+0x9a/0x820 [ 290.802085] ? do_syscall_64+0x9a/0x820 [ 290.806092] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 290.812041] __x64_sys_sendmsg+0x78/0xb0 [ 290.816128] do_syscall_64+0x1b9/0x820 [ 290.820503] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 290.825895] ? syscall_return_slowpath+0x5e0/0x5e0 [ 290.831343] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 290.836212] ? trace_hardirqs_on_caller+0x310/0x310 [ 290.841786] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 290.846829] ? prepare_exit_to_usermode+0x291/0x3b0 [ 290.853419] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 290.858296] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 290.864027] RIP: 0033:0x457569 [ 290.867245] Code: Bad RIP value. [ 290.871085] RSP: 002b:00007f8ef4a35c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 290.878819] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 290.886874] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000004 [ 290.894665] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 290.902439] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8ef4a366d4 [ 290.910209] R13: 00000000004c387d R14: 00000000004d56d0 R15: 00000000ffffffff [ 290.917526] [ 290.917526] Showing all locks held in the system: [ 290.924408] 1 lock held by khungtaskd/982: [ 290.928650] #0: 000000000bcea75c (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 [ 290.937868] 1 lock held by rsyslogd/5240: [ 290.942488] #0: 00000000baacc0ba (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 [ 290.951032] 2 locks held by getty/5329: [ 290.955017] #0: 00000000da399000 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 290.963967] #1: 00000000078f6766 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 290.973471] 2 locks held by getty/5330: [ 290.977458] #0: 000000006658d2ab (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 290.987245] #1: 00000000a4e55645 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 290.996815] 2 locks held by getty/5331: [ 291.001252] #0: 00000000f3b48bf4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 291.010010] #1: 00000000e44b615e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 291.018911] 2 locks held by getty/5332: [ 291.023407] #0: 00000000005368f9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 291.032148] #1: 00000000717606d2 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 291.041551] 2 locks held by getty/5333: [ 291.045537] #0: 000000008f6095e9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 291.054311] #1: 00000000cbfa8653 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 291.063787] 2 locks held by getty/5334: [ 291.067767] #0: 00000000a7e4496b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 291.076508] #1: 00000000e3981645 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 291.085861] 2 locks held by getty/5335: [ 291.090288] #0: 000000009ff3ef1e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 291.098569] #1: 000000004c38513e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1ce0 [ 291.108004] 4 locks held by syz-executor4/6919: [ 291.114147] 2 locks held by syz-executor0/6925: [ 291.118827] #0: 00000000455a9b7b (cb_lock){++++}, at: genl_rcv+0x19/0x40 [ 291.126309] #1: 00000000f78598ee (genl_mutex){+.+.}, at: genl_rcv_msg+0x13a/0x168 [ 291.134524] 2 locks held by syz-executor5/6923: [ 291.139202] #0: 00000000455a9b7b (cb_lock){++++}, at: genl_rcv+0x19/0x40 [ 291.146645] #1: 00000000f78598ee (genl_mutex){+.+.}, at: genl_rcv_msg+0x13a/0x168 [ 291.154934] 2 locks held by syz-executor1/6930: [ 291.160093] #0: 00000000455a9b7b (cb_lock){++++}, at: genl_rcv+0x19/0x40 [ 291.167078] #1: 00000000f78598ee (genl_mutex){+.+.}, at: genl_rcv_msg+0x13a/0x168 [ 291.175353] 2 locks held by syz-executor2/6940: [ 291.180488] #0: 00000000455a9b7b (cb_lock){++++}, at: genl_rcv+0x19/0x40 [ 291.187475] #1: 00000000f78598ee (genl_mutex){+.+.}, at: genl_rcv_msg+0x13a/0x168 [ 291.195790] 2 locks held by syz-executor3/6942: [ 291.200920] #0: 00000000455a9b7b (cb_lock){++++}, at: genl_rcv+0x19/0x40 [ 291.207905] #1: 00000000f78598ee (genl_mutex){+.+.}, at: genl_rcv_msg+0x13a/0x168 [ 291.216229] [ 291.217871] ============================================= [ 291.217871] [ 291.225395] NMI backtrace for cpu 1 [ 291.229044] CPU: 1 PID: 982 Comm: khungtaskd Not tainted 4.19.0-rc7+ #140 [ 291.235979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 291.245396] Call Trace: [ 291.248045] dump_stack+0x1c4/0x2b4 [ 291.251698] ? dump_stack_print_info.cold.2+0x52/0x52 [ 291.256912] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 291.262477] nmi_cpu_backtrace.cold.3+0x63/0xa2 [ 291.267225] ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f [ 291.272455] nmi_trigger_cpumask_backtrace+0x1b3/0x1ed [ 291.277752] arch_trigger_cpumask_backtrace+0x14/0x20 [ 291.282961] watchdog+0xb3e/0x1050 [ 291.286533] ? reset_hung_task_detector+0xd0/0xd0 [ 291.291444] ? __kthread_parkme+0xce/0x1a0 [ 291.295715] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 291.300838] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 291.305955] ? lockdep_hardirqs_on+0x421/0x5c0 [ 291.310555] ? trace_hardirqs_on+0xbd/0x310 [ 291.314895] ? kasan_check_read+0x11/0x20 [ 291.319063] ? __kthread_parkme+0xce/0x1a0 [ 291.323319] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 291.328788] ? kasan_check_write+0x14/0x20 [ 291.333039] ? do_raw_spin_lock+0xc1/0x200 [ 291.337293] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 291.342413] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 291.347963] ? __kthread_parkme+0xfb/0x1a0 [ 291.352213] kthread+0x35a/0x420 [ 291.356071] ? reset_hung_task_detector+0xd0/0xd0 [ 291.360923] ? kthread_bind+0x40/0x40 [ 291.364743] ret_from_fork+0x3a/0x50 [ 291.368599] Sending NMI from CPU 1 to CPUs 0: [ 291.374963] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.662 msecs [ 291.375158] NMI backtrace for cpu 0 [ 291.375166] CPU: 0 PID: 6919 Comm: syz-executor4 Not tainted 4.19.0-rc7+ #140 [ 291.375174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 291.375179] RIP: 0010:tipc_sk_lookup+0x99e/0xff0 [ 291.375193] Code: 85 2b 06 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 03 4b 06 fa 0f b6 05 9c 06 76 02 31 ff 89 c6 88 85 d0 fd ff ff bd 4b 06 fa 0f b6 85 d0 fd ff ff 84 c0 0f 85 74 fc ff ff e8 d9 [ 291.375198] RSP: 0018:ffff8801cecde8c8 EFLAGS: 00000246 [ 291.375208] RAX: 0000000000000000 RBX: ffff8801cecdeb18 RCX: ffffffff87788ad8 [ 291.375222] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 291.375229] RBP: ffff8801cecdeb40 R08: ffff8801ce884040 R09: 1ffffffff1273965 [ 291.375235] R10: ffffed003b5c4732 R11: ffff8801dae23993 R12: ffff8801c89b2a00 [ 291.375242] R13: dffffc0000000000 R14: 0000000000000092 R15: 0000000000000001 [ 291.375249] FS: 00007fc2cfef9700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 291.375255] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 291.375261] CR2: ffffffffff600400 CR3: 00000001bc63a000 CR4: 00000000001406f0 [ 291.375265] Call Trace: [ 291.375270] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 291.375275] ? __tipc_nl_add_sk+0x400/0x400 [ 291.375279] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 291.375284] ? graph_lock+0x170/0x170 [ 291.375289] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 291.375294] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 291.375299] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 291.375303] ? validate_nla+0x2d9/0x7b0 [ 291.375308] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 291.375313] ? nla_parse+0x2f9/0x480 [ 291.375317] ? validate_nla+0x7b0/0x7b0 [ 291.375321] ? tipc_nlmsg_parse+0x16/0xf0 [ 291.375326] tipc_nl_publ_dump+0x22d/0xf9c [ 291.375331] ? tipc_nl_sk_dump+0x30/0x30 [ 291.375336] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 291.375341] ? lockdep_hardirqs_on+0x421/0x5c0 [ 291.375345] ? retint_kernel+0x2d/0x2d [ 291.375350] ? trace_hardirqs_on_caller+0xc0/0x310 [ 291.375355] ? trace_hardirqs_on_caller+0xc0/0x310 [ 291.375360] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 291.375364] ? trace_hardirqs_off+0x310/0x310 [ 291.375369] ? trace_hardirqs_off+0x310/0x310 [ 291.375374] ? trace_hardirqs_on+0x310/0x310 [ 291.375379] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 291.375384] ? __tipc_nl_compat_dumpit.isra.11+0x28a/0xb50 [ 291.375389] ? __tipc_nl_compat_dumpit.isra.11+0x5c4/0xb50 [ 291.375395] __tipc_nl_compat_dumpit.isra.11+0x25d/0xb50 [ 291.375399] ? __alloc_skb+0x4c6/0x770 [ 291.375404] ? __tipc_add_link_prop.isra.9+0x2d0/0x2d0 [ 291.375408] ? skb_put+0x17b/0x1e0 [ 291.375413] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 291.375417] ? skb_put+0x17b/0x1e0 [ 291.375421] ? nla_put+0x117/0x150 [ 291.375426] tipc_nl_compat_sk_dump+0x88e/0xc50 [ 291.375431] ? __tipc_nl_compat_dumpit.isra.11+0xb50/0xb50 [ 291.375436] ? rcu_bh_qs+0xc0/0xc0 [ 291.375440] ? graph_lock+0x170/0x170 [ 291.375445] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 291.375450] ? tipc_nl_sk_dump+0x30/0x30 [ 291.375454] ? tipc_tlv_sprintf+0x2e0/0x2e0 [ 291.375459] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 291.375464] ? validate_nla+0x2d9/0x7b0 [ 291.375469] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 291.375473] ? nla_parse+0x2f9/0x480 [ 291.375478] ? __tipc_nl_compat_dumpit.isra.11+0xb50/0xb50 [ 291.375484] __tipc_nl_compat_dumpit.isra.11+0x389/0xb50 [ 291.375489] ? __tipc_add_link_prop.isra.9+0x2d0/0x2d0 [ 291.375493] ? lock_release+0x970/0x970 [ 291.375498] ? arch_local_save_flags+0x40/0x40 [ 291.375503] ? check_preemption_disabled+0x48/0x200 [ 291.375508] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 291.375512] ? skb_put+0x17b/0x1e0 [ 291.375517] tipc_nl_compat_dumpit+0x1f4/0x440 [ 291.375522] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 291.375527] tipc_nl_compat_recv+0x12b3/0x19a0 [ 291.375531] ? tipc_nl_compat_doit+0x650/0x650 [ 291.375536] ? tipc_dump_start+0x90/0x90 [ 291.375541] ? __tipc_nl_compat_dumpit.isra.11+0xb50/0xb50 [ 291.375546] ? radix_tree_descend+0x13c/0x2e0 [ 291.375550] genl_family_rcv_msg+0x8a9/0x1140 [ 291.375555] ? genl_unregister_family+0x8a0/0x8a0 [ 291.375560] ? __radix_tree_insert+0x8f0/0x8f0 [ 291.375565] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 291.375569] ? lock_acquire+0x1ed/0x520 [ 291.375573] ? genl_rcv+0x19/0x40 [ 291.375578] genl_rcv_msg+0xc6/0x168 [ 291.375582] netlink_rcv_skb+0x172/0x440 [ 291.375587] ? genl_family_rcv_msg+0x1140/0x1140 [ 291.375591] ? netlink_ack+0xb80/0xb80 [ 291.375595] genl_rcv+0x28/0x40 [ 291.375600] netlink_unicast+0x5a5/0x760 [ 291.375604] ? netlink_attachskb+0x9a0/0x9a0 [ 291.375610] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 291.375615] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 291.375619] netlink_sendmsg+0xa18/0xfc0 [ 291.375624] ? netlink_unicast+0x760/0x760 [ 291.375628] ? aa_sock_msg_perm.isra.12+0xba/0x160 [ 291.375633] ? apparmor_socket_sendmsg+0x29/0x30 [ 291.375639] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 291.375643] ? security_socket_sendmsg+0x94/0xc0 [ 291.375648] ? netlink_unicast+0x760/0x760 [ 291.375652] sock_sendmsg+0xd5/0x120 [ 291.375656] ___sys_sendmsg+0x7fd/0x930 [ 291.375661] ? copy_msghdr_from_user+0x580/0x580 [ 291.375666] ? trace_hardirqs_on+0xbd/0x310 [ 291.375670] ? __fget_light+0x2e9/0x430 [ 291.375674] ? fget_raw+0x20/0x20 [ 291.375679] ? lock_downgrade+0x900/0x900 [ 291.375683] ? lock_release+0x970/0x970 [ 291.375688] ? arch_local_save_flags+0x40/0x40 [ 291.375693] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 291.375698] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 291.375715] ? sockfd_lookup_light+0xc5/0x160 [ 291.375720] __sys_sendmsg+0x11d/0x280 [ 291.375724] ? __ia32_sys_shutdown+0x80/0x80 [ 291.375729] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 291.375734] ? put_timespec64+0x10f/0x1b0 [ 291.375738] ? do_syscall_64+0x9a/0x820 [ 291.375743] ? do_syscall_64+0x9a/0x820 [ 291.375748] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 291.375752] __x64_sys_sendmsg+0x78/0xb0 [ 291.375757] do_syscall_64+0x1b9/0x820 [ 291.375762] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 291.375767] ? syscall_return_slowpath+0x5e0/0x5e0 [ 291.375772] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 291.375777] ? trace_hardirqs_on_caller+0x310/0x310 [ 291.375782] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 291.375787] ? prepare_exit_to_usermode+0x291/0x3b0 [ 291.375792] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 291.375797] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 291.375801] RIP: 0033:0x457569 [ 291.375814] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 291.375819] RSP: 002b:00007fc2cfef8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 291.375830] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 291.375836] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000006 [ 291.375843] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 291.375849] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc2cfef96d4 [ 291.375855] R13: 00000000004c387d R14: 00000000004d56d0 R15: 00000000ffffffff [ 291.384488] Kernel panic - not syncing: hung_task: blocked tasks [ 292.065753] CPU: 1 PID: 982 Comm: khungtaskd Not tainted 4.19.0-rc7+ #140 [ 292.072686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 292.082056] Call Trace: [ 292.084662] dump_stack+0x1c4/0x2b4 [ 292.088302] ? dump_stack_print_info.cold.2+0x52/0x52 [ 292.093585] panic+0x238/0x4e7 [ 292.096796] ? add_taint.cold.5+0x16/0x16 [ 292.100962] ? nmi_trigger_cpumask_backtrace+0x16a/0x1ed [ 292.106421] ? nmi_trigger_cpumask_backtrace+0x1c4/0x1ed [ 292.111884] ? nmi_trigger_cpumask_backtrace+0x173/0x1ed [ 292.117343] ? nmi_trigger_cpumask_backtrace+0x16a/0x1ed [ 292.122809] watchdog+0xb4f/0x1050 [ 292.126374] ? reset_hung_task_detector+0xd0/0xd0 [ 292.131236] ? __kthread_parkme+0xce/0x1a0 [ 292.135483] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 292.140600] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 292.145723] ? lockdep_hardirqs_on+0x421/0x5c0 [ 292.150323] ? trace_hardirqs_on+0xbd/0x310 [ 292.154654] ? kasan_check_read+0x11/0x20 [ 292.158815] ? __kthread_parkme+0xce/0x1a0 [ 292.163062] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 292.168525] ? kasan_check_write+0x14/0x20 [ 292.172773] ? do_raw_spin_lock+0xc1/0x200 [ 292.177027] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 292.182170] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 292.187725] ? __kthread_parkme+0xfb/0x1a0 [ 292.191976] kthread+0x35a/0x420 [ 292.195352] ? reset_hung_task_detector+0xd0/0xd0 [ 292.200205] ? kthread_bind+0x40/0x40 [ 292.204027] ret_from_fork+0x3a/0x50 [ 292.208771] Kernel Offset: disabled [ 292.212401] Rebooting in 86400 seconds..