[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 33.496237] audit: type=1800 audit(1539304563.333:25): pid=5648 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 33.522630] audit: type=1800 audit(1539304563.333:26): pid=5648 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 33.547110] audit: type=1800 audit(1539304563.333:27): pid=5648 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. 2018/10/12 00:40:59 parsed 1 programs 2018/10/12 00:41:01 executed programs: 0 syzkaller login: [ 331.218366] IPVS: ftp: loaded support on port[0] = 21 [ 331.226828] IPVS: ftp: loaded support on port[0] = 21 [ 331.230872] IPVS: ftp: loaded support on port[0] = 21 [ 331.241757] IPVS: ftp: loaded support on port[0] = 21 [ 331.249119] IPVS: ftp: loaded support on port[0] = 21 [ 331.260044] IPVS: ftp: loaded support on port[0] = 21 [ 331.846931] bridge0: port 1(bridge_slave_0) entered blocking state [ 331.853426] bridge0: port 1(bridge_slave_0) entered disabled state [ 331.863172] device bridge_slave_0 entered promiscuous mode [ 331.885528] bridge0: port 1(bridge_slave_0) entered blocking state [ 331.891855] bridge0: port 1(bridge_slave_0) entered disabled state [ 331.899993] device bridge_slave_0 entered promiscuous mode [ 331.910088] bridge0: port 2(bridge_slave_1) entered blocking state [ 331.917945] bridge0: port 2(bridge_slave_1) entered disabled state [ 331.924967] device bridge_slave_1 entered promiscuous mode [ 331.931817] bridge0: port 1(bridge_slave_0) entered blocking state [ 331.938791] bridge0: port 1(bridge_slave_0) entered disabled state [ 331.945815] device bridge_slave_0 entered promiscuous mode [ 331.957844] bridge0: port 2(bridge_slave_1) entered blocking state [ 331.964187] bridge0: port 2(bridge_slave_1) entered disabled state [ 331.971584] device bridge_slave_1 entered promiscuous mode [ 331.978473] bridge0: port 1(bridge_slave_0) entered blocking state [ 331.984815] bridge0: port 1(bridge_slave_0) entered disabled state [ 331.991981] device bridge_slave_0 entered promiscuous mode [ 331.998605] bridge0: port 1(bridge_slave_0) entered blocking state [ 332.004932] bridge0: port 1(bridge_slave_0) entered disabled state [ 332.012670] device bridge_slave_0 entered promiscuous mode [ 332.020001] bridge0: port 1(bridge_slave_0) entered blocking state [ 332.027077] bridge0: port 1(bridge_slave_0) entered disabled state [ 332.033933] device bridge_slave_0 entered promiscuous mode [ 332.041285] bridge0: port 2(bridge_slave_1) entered blocking state [ 332.048156] bridge0: port 2(bridge_slave_1) entered disabled state [ 332.055570] device bridge_slave_1 entered promiscuous mode [ 332.062511] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 332.070540] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 332.079762] bridge0: port 2(bridge_slave_1) entered blocking state [ 332.087808] bridge0: port 2(bridge_slave_1) entered disabled state [ 332.094649] device bridge_slave_1 entered promiscuous mode [ 332.102517] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 332.110291] bridge0: port 2(bridge_slave_1) entered blocking state [ 332.116991] bridge0: port 2(bridge_slave_1) entered disabled state [ 332.123886] device bridge_slave_1 entered promiscuous mode [ 332.131109] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 332.140118] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 332.147794] bridge0: port 2(bridge_slave_1) entered blocking state [ 332.154113] bridge0: port 2(bridge_slave_1) entered disabled state [ 332.161331] device bridge_slave_1 entered promiscuous mode [ 332.168351] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 332.177052] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 332.184870] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 332.203247] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 332.216707] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 332.224511] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 332.239079] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 332.288406] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 332.309789] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 332.333049] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 332.346943] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 332.356790] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 332.366979] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 332.377865] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 332.392625] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 332.402485] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 332.413221] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 332.430977] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 332.441741] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 332.646587] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 332.656049] team0: Port device team_slave_0 added [ 332.663216] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 332.671022] team0: Port device team_slave_0 added [ 332.678772] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 332.686374] team0: Port device team_slave_0 added [ 332.691576] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 332.699179] team0: Port device team_slave_0 added [ 332.723140] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 332.732902] team0: Port device team_slave_1 added [ 332.743884] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 332.754134] team0: Port device team_slave_1 added [ 332.762881] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 332.770619] team0: Port device team_slave_0 added [ 332.778473] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 332.786057] team0: Port device team_slave_0 added [ 332.792824] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 332.802483] team0: Port device team_slave_1 added [ 332.810076] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 332.822048] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 332.834014] team0: Port device team_slave_1 added [ 332.841488] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 332.852932] team0: Port device team_slave_1 added [ 332.858289] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 332.869132] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 332.877373] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 332.884881] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 332.892809] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 332.901630] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 332.908793] team0: Port device team_slave_1 added [ 332.916225] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 332.925001] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 332.933861] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 332.950730] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 332.961950] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 332.969453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 332.978897] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 332.986779] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 332.994531] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 333.002227] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 333.010207] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 333.017802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 333.025575] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 333.032958] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 333.040636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 333.050713] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 333.059699] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 333.069688] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 333.080632] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 333.091384] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 333.102222] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 333.110085] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 333.117897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 333.125594] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 333.134826] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 333.144113] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 333.157710] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 333.166230] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 333.176550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 333.184638] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 333.192243] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 333.200842] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 333.212468] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 333.220384] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 333.228434] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 333.236777] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 333.244511] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 333.259228] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 333.272504] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 333.284587] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 333.298275] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 333.306292] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 333.313939] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 333.321921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 333.329799] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 333.337224] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 333.344866] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 333.352878] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 333.361886] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 333.371275] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 333.383459] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 333.395178] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 333.412374] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 333.420357] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 333.428099] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 333.436025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 333.444176] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 333.456997] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 333.468134] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 333.481641] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 333.499703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 333.512944] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 333.944388] bridge0: port 2(bridge_slave_1) entered blocking state [ 333.950815] bridge0: port 2(bridge_slave_1) entered forwarding state [ 333.957510] bridge0: port 1(bridge_slave_0) entered blocking state [ 333.963869] bridge0: port 1(bridge_slave_0) entered forwarding state [ 333.972339] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 333.982462] bridge0: port 2(bridge_slave_1) entered blocking state [ 333.988868] bridge0: port 2(bridge_slave_1) entered forwarding state [ 333.995520] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.001884] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.010442] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 334.050690] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.057506] bridge0: port 2(bridge_slave_1) entered forwarding state [ 334.064140] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.070533] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.080214] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 334.089634] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.096026] bridge0: port 2(bridge_slave_1) entered forwarding state [ 334.102654] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.109036] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.116582] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 334.124839] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.131228] bridge0: port 2(bridge_slave_1) entered forwarding state [ 334.137901] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.144252] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.154416] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 334.164215] bridge0: port 2(bridge_slave_1) entered blocking state [ 334.170614] bridge0: port 2(bridge_slave_1) entered forwarding state [ 334.177257] bridge0: port 1(bridge_slave_0) entered blocking state [ 334.183604] bridge0: port 1(bridge_slave_0) entered forwarding state [ 334.192128] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 334.716263] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 334.723402] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 334.738712] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 334.746281] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 334.753255] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 334.760372] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 336.005585] 8021q: adding VLAN 0 to HW filter on device bond0 [ 336.079887] 8021q: adding VLAN 0 to HW filter on device bond0 [ 336.107139] 8021q: adding VLAN 0 to HW filter on device bond0 [ 336.155620] 8021q: adding VLAN 0 to HW filter on device bond0 [ 336.175684] 8021q: adding VLAN 0 to HW filter on device bond0 [ 336.210294] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 336.257706] 8021q: adding VLAN 0 to HW filter on device bond0 [ 336.290065] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 336.330799] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 336.349417] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 336.366605] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 336.416493] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 336.422636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 336.432163] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 336.512889] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 336.519349] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 336.526969] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 336.536599] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 336.548178] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 336.562263] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 336.571793] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 336.579166] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 336.589802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 336.597594] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 336.604748] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 336.612174] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 336.619282] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 336.677249] 8021q: adding VLAN 0 to HW filter on device team0 [ 336.750793] 8021q: adding VLAN 0 to HW filter on device team0 [ 336.760924] 8021q: adding VLAN 0 to HW filter on device team0 [ 336.772121] 8021q: adding VLAN 0 to HW filter on device team0 [ 336.780907] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 336.795988] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 336.805959] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 336.835932] 8021q: adding VLAN 0 to HW filter on device team0 [ 336.964860] 8021q: adding VLAN 0 to HW filter on device team0 2018/10/12 00:41:08 executed programs: 6 2018/10/12 00:41:13 executed programs: 41 2018/10/12 00:41:18 executed programs: 65 2018/10/12 00:41:23 executed programs: 96 2018/10/12 00:41:28 executed programs: 126 2018/10/12 00:41:34 executed programs: 151 2018/10/12 00:41:40 executed programs: 183 2018/10/12 00:41:45 executed programs: 208 2018/10/12 00:41:51 executed programs: 233 2018/10/12 00:41:57 executed programs: 260 2018/10/12 00:42:02 executed programs: 289 2018/10/12 00:42:08 executed programs: 315 2018/10/12 00:42:13 executed programs: 340 2018/10/12 00:42:18 executed programs: 365 [ 563.195561] INFO: task syz-executor5:9181 blocked for more than 140 seconds. [ 563.202917] Not tainted 4.19.0-rc7+ #278 [ 563.207577] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 563.215564] syz-executor5 D23568 9181 5830 0x00000004 [ 563.221256] Call Trace: [ 563.223909] __schedule+0x86c/0x1ed0 [ 563.227691] ? __switch_to_asm+0x34/0x70 [ 563.231761] ? __switch_to_asm+0x34/0x70 [ 563.235981] ? __sched_text_start+0x8/0x8 [ 563.240200] ? __switch_to_asm+0x40/0x70 [ 563.244248] ? __switch_to_asm+0x34/0x70 [ 563.248445] ? debug_object_active_state+0x2f5/0x4d0 [ 563.253562] ? schedule+0x108/0x460 [ 563.257259] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 563.262318] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 563.267114] schedule+0xfe/0x460 [ 563.270484] ? __mutex_lock+0xbe2/0x1700 [ 563.274538] ? __schedule+0x1ed0/0x1ed0 [ 563.278664] ? kasan_check_read+0x11/0x20 [ 563.283074] ? do_raw_spin_unlock+0xa7/0x2f0 [ 563.287536] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 563.292120] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 563.297746] ? mutex_destroy+0x200/0x200 [ 563.301814] ? do_raw_spin_lock+0xc1/0x200 [ 563.306092] schedule_preempt_disabled+0x13/0x20 [ 563.310852] __mutex_lock+0xbe7/0x1700 [ 563.314786] ? evdev_release+0xfe/0x1e0 [ 563.318904] ? __save_stack_trace+0x8d/0xf0 [ 563.323232] ? mutex_trylock+0x2b0/0x2b0 [ 563.327337] ? save_stack+0xa9/0xd0 [ 563.331008] ? kfree+0xcf/0x230 [ 563.334305] ? kvfree+0x61/0x70 [ 563.337626] ? evdev_release+0xf3/0x1e0 [ 563.341633] ? __fput+0x385/0xa30 [ 563.345073] ? ____fput+0x15/0x20 [ 563.348602] ? task_work_run+0x1e8/0x2a0 [ 563.352685] ? exit_to_usermode_loop+0x318/0x380 [ 563.357475] ? do_syscall_64+0x6be/0x820 [ 563.361538] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 563.366965] ? trace_hardirqs_off+0xb8/0x310 [ 563.371382] ? kasan_check_read+0x11/0x20 [ 563.375673] ? do_raw_spin_unlock+0xa7/0x2f0 [ 563.380088] ? trace_hardirqs_on+0x310/0x310 [ 563.384486] ? kasan_check_write+0x14/0x20 [ 563.388765] ? trace_hardirqs_off+0xb8/0x310 [ 563.393174] ? trace_hardirqs_on+0x310/0x310 [ 563.397617] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 563.403265] ? check_preemption_disabled+0x48/0x200 [ 563.408328] ? trace_hardirqs_on+0xbd/0x310 [ 563.412641] ? kvfree+0x61/0x70 [ 563.415936] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 563.421372] ? __kasan_slab_free+0x119/0x150 [ 563.425803] ? kvfree+0x61/0x70 [ 563.429078] mutex_lock_nested+0x16/0x20 [ 563.433123] ? mutex_lock_nested+0x16/0x20 [ 563.437397] evdev_release+0xfe/0x1e0 [ 563.441211] ? evdev_detach_client+0x290/0x290 [ 563.445873] __fput+0x385/0xa30 [ 563.449150] ? get_max_files+0x20/0x20 [ 563.453021] ? trace_hardirqs_on+0xbd/0x310 [ 563.457367] ? kasan_check_read+0x11/0x20 [ 563.461501] ? task_work_run+0x1af/0x2a0 [ 563.465609] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 563.471063] ? kasan_check_write+0x14/0x20 [ 563.475333] ? do_raw_spin_lock+0xc1/0x200 [ 563.479568] ____fput+0x15/0x20 [ 563.482836] task_work_run+0x1e8/0x2a0 [ 563.486767] ? task_work_cancel+0x240/0x240 [ 563.491148] ? copy_fd_bitmaps+0x210/0x210 [ 563.495445] exit_to_usermode_loop+0x318/0x380 [ 563.500027] ? syscall_slow_exit_work+0x520/0x520 [ 563.504856] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 563.510465] do_syscall_64+0x6be/0x820 [ 563.514354] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 563.519874] ? syscall_return_slowpath+0x5e0/0x5e0 [ 563.524896] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 563.529885] ? trace_hardirqs_on_caller+0x310/0x310 [ 563.535017] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 563.540093] ? prepare_exit_to_usermode+0x291/0x3b0 [ 563.545113] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 563.550121] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 563.555350] RIP: 0033:0x410ff1 [ 563.558533] Code: 30 48 89 4c 24 10 e8 8e 09 00 00 48 8b 44 24 28 48 89 04 24 48 8b 44 24 30 48 89 44 24 08 e8 36 5d 04 00 48 8b 6c 24 18 48 83 20 c3 cc cc cc cc cc cc cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff [ 563.577579] RSP: 002b:00007ffe8e640f90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 563.585432] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000410ff1 [ 563.592780] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 563.600175] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 563.607474] R10: 00007ffe8e640ec0 R11: 0000000000000293 R12: 0000000000000000 [ 563.614780] R13: 0000000000000001 R14: 0000000000000039 R15: 0000000000000005 [ 563.622142] INFO: task syz-executor3:9182 blocked for more than 140 seconds. [ 563.629353] Not tainted 4.19.0-rc7+ #278 [ 563.633961] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 563.642083] syz-executor3 D22160 9182 5826 0x00000004 [ 563.647753] Call Trace: [ 563.650335] __schedule+0x86c/0x1ed0 [ 563.654036] ? __switch_to_asm+0x34/0x70 [ 563.658149] ? __switch_to_asm+0x34/0x70 [ 563.662215] ? __sched_text_start+0x8/0x8 [ 563.666401] ? debug_object_active_state+0x2f5/0x4d0 [ 563.671527] ? schedule+0x108/0x460 [ 563.675139] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 563.680187] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 563.685004] schedule+0xfe/0x460 [ 563.688438] ? __mutex_lock+0xbe2/0x1700 [ 563.692500] ? __schedule+0x1ed0/0x1ed0 [ 563.696505] ? kasan_check_read+0x11/0x20 [ 563.700653] ? do_raw_spin_unlock+0xa7/0x2f0 [ 563.705043] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 563.709655] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 563.715108] ? mutex_destroy+0x200/0x200 [ 563.719223] ? do_raw_spin_lock+0xc1/0x200 [ 563.723461] schedule_preempt_disabled+0x13/0x20 [ 563.728247] __mutex_lock+0xbe7/0x1700 [ 563.732213] ? evdev_release+0xfe/0x1e0 [ 563.736244] ? __save_stack_trace+0x8d/0xf0 [ 563.740570] ? mutex_trylock+0x2b0/0x2b0 [ 563.744613] ? save_stack+0xa9/0xd0 [ 563.748285] ? kfree+0xcf/0x230 [ 563.751563] ? kvfree+0x61/0x70 [ 563.754822] ? evdev_release+0xf3/0x1e0 [ 563.758833] ? __fput+0x385/0xa30 [ 563.762283] ? ____fput+0x15/0x20 [ 563.765772] ? task_work_run+0x1e8/0x2a0 [ 563.769837] ? exit_to_usermode_loop+0x318/0x380 [ 563.774722] ? do_syscall_64+0x6be/0x820 [ 563.778871] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 563.784235] ? trace_hardirqs_off+0xb8/0x310 [ 563.788700] ? kasan_check_read+0x11/0x20 [ 563.792866] ? do_raw_spin_unlock+0xa7/0x2f0 [ 563.797328] ? trace_hardirqs_on+0x310/0x310 [ 563.801738] ? kasan_check_write+0x14/0x20 [ 563.806008] ? trace_hardirqs_off+0xb8/0x310 [ 563.810427] ? trace_hardirqs_on+0x310/0x310 [ 563.814826] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 563.820449] ? check_preemption_disabled+0x48/0x200 [ 563.825491] ? trace_hardirqs_on+0xbd/0x310 [ 563.829802] ? kvfree+0x61/0x70 [ 563.833064] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 563.838685] ? __kasan_slab_free+0x119/0x150 [ 563.843096] ? kvfree+0x61/0x70 [ 563.846428] mutex_lock_nested+0x16/0x20 [ 563.850487] ? mutex_lock_nested+0x16/0x20 [ 563.854712] evdev_release+0xfe/0x1e0 [ 563.858594] ? evdev_detach_client+0x290/0x290 [ 563.863179] __fput+0x385/0xa30 [ 563.866620] ? get_max_files+0x20/0x20 [ 563.870637] ? trace_hardirqs_on+0xbd/0x310 [ 563.874944] ? kasan_check_read+0x11/0x20 [ 563.879193] ? task_work_run+0x1af/0x2a0 [ 563.883256] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 563.888774] ? kasan_check_write+0x14/0x20 [ 563.893011] ? do_raw_spin_lock+0xc1/0x200 [ 563.897405] ____fput+0x15/0x20 [ 563.900703] task_work_run+0x1e8/0x2a0 [ 563.904584] ? task_work_cancel+0x240/0x240 [ 563.909001] ? copy_fd_bitmaps+0x210/0x210 [ 563.913242] exit_to_usermode_loop+0x318/0x380 [ 563.917900] ? syscall_slow_exit_work+0x520/0x520 [ 563.922756] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 563.928406] do_syscall_64+0x6be/0x820 [ 563.932310] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 563.937878] ? syscall_return_slowpath+0x5e0/0x5e0 [ 563.942816] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 563.947745] ? trace_hardirqs_on_caller+0x310/0x310 [ 563.952860] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 563.958115] ? prepare_exit_to_usermode+0x291/0x3b0 [ 563.963140] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 563.968077] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 563.973279] RIP: 0033:0x410ff1 [ 563.976579] Code: 30 48 89 4c 24 10 e8 8e 09 00 00 48 8b 44 24 28 48 89 04 24 48 8b 44 24 30 48 89 44 24 08 e8 36 5d 04 00 48 8b 6c 24 18 48 83 20 c3 cc cc cc cc cc cc cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff [ 563.996274] RSP: 002b:00007ffc0bbc2800 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 564.003981] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000410ff1 [ 564.011453] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 564.018770] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 564.026379] R10: 00007ffc0bbc2730 R11: 0000000000000293 R12: 0000000000000000 [ 564.033666] R13: 0000000000000001 R14: 000000000000003d R15: 0000000000000003 [ 564.041149] INFO: task syz-executor4:9191 blocked for more than 140 seconds. [ 564.048363] Not tainted 4.19.0-rc7+ #278 [ 564.052925] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 564.060958] syz-executor4 D23568 9191 5827 0x00000004 [ 564.066622] Call Trace: [ 564.069202] __schedule+0x86c/0x1ed0 [ 564.073072] ? __switch_to_asm+0x34/0x70 [ 564.077210] ? __switch_to_asm+0x34/0x70 [ 564.081275] ? __sched_text_start+0x8/0x8 [ 564.085479] ? debug_object_active_state+0x2f5/0x4d0 [ 564.090587] ? schedule+0x108/0x460 [ 564.094201] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 564.099314] ? bpf_prog_kallsyms_find+0xde/0x4a0 [ 564.104075] schedule+0xfe/0x460 [ 564.107524] ? __mutex_lock+0xbe2/0x1700 [ 564.111608] ? __schedule+0x1ed0/0x1ed0 [ 564.116230] ? kasan_check_read+0x11/0x20 [ 564.120385] ? do_raw_spin_unlock+0xa7/0x2f0 [ 564.124781] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 564.129460] ? __ww_mutex_add_waiter.part.15+0x120/0x120 [ 564.134922] ? mutex_destroy+0x200/0x200 [ 564.139061] ? do_raw_spin_lock+0xc1/0x200 [ 564.143291] schedule_preempt_disabled+0x13/0x20 [ 564.148093] __mutex_lock+0xbe7/0x1700 [ 564.151972] ? evdev_release+0xfe/0x1e0 [ 564.156084] ? __save_stack_trace+0x8d/0xf0 [ 564.160423] ? mutex_trylock+0x2b0/0x2b0 [ 564.164477] ? save_stack+0xa9/0xd0 [ 564.168320] ? kfree+0xcf/0x230 [ 564.171672] ? kvfree+0x61/0x70 [ 564.174941] ? evdev_release+0xf3/0x1e0 [ 564.179081] ? __fput+0x385/0xa30 [ 564.182541] ? ____fput+0x15/0x20 [ 564.186161] ? task_work_run+0x1e8/0x2a0 [ 564.190228] ? exit_to_usermode_loop+0x318/0x380 [ 564.194967] ? do_syscall_64+0x6be/0x820 [ 564.199094] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 564.204459] ? trace_hardirqs_off+0xb8/0x310 [ 564.209034] ? kasan_check_read+0x11/0x20 [ 564.213185] ? do_raw_spin_unlock+0xa7/0x2f0 [ 564.217648] ? trace_hardirqs_on+0x310/0x310 [ 564.222054] ? kasan_check_write+0x14/0x20 [ 564.226479] ? trace_hardirqs_off+0xb8/0x310 [ 564.230892] ? trace_hardirqs_on+0x310/0x310 [ 564.235557] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 564.241103] ? check_preemption_disabled+0x48/0x200 [ 564.246171] ? trace_hardirqs_on+0xbd/0x310 [ 564.250496] ? kvfree+0x61/0x70 [ 564.253760] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 564.259301] ? __kasan_slab_free+0x119/0x150 [ 564.263764] ? kvfree+0x61/0x70 [ 564.267125] mutex_lock_nested+0x16/0x20 [ 564.271188] ? mutex_lock_nested+0x16/0x20 [ 564.275497] evdev_release+0xfe/0x1e0 [ 564.279305] ? evdev_detach_client+0x290/0x290 [ 564.283981] __fput+0x385/0xa30 [ 564.287334] ? get_max_files+0x20/0x20 [ 564.291226] ? trace_hardirqs_on+0xbd/0x310 [ 564.295586] ? kasan_check_read+0x11/0x20 [ 564.299734] ? task_work_run+0x1af/0x2a0 [ 564.303780] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 564.309304] ? kasan_check_write+0x14/0x20 [ 564.313540] ? do_raw_spin_lock+0xc1/0x200 [ 564.317858] ____fput+0x15/0x20 [ 564.321214] task_work_run+0x1e8/0x2a0 [ 564.325091] ? task_work_cancel+0x240/0x240 [ 564.329503] ? copy_fd_bitmaps+0x210/0x210 [ 564.333806] exit_to_usermode_loop+0x318/0x380 [ 564.338486] ? syscall_slow_exit_work+0x520/0x520 [ 564.343349] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 564.348946] do_syscall_64+0x6be/0x820 [ 564.352822] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 564.358200] ? syscall_return_slowpath+0x5e0/0x5e0 [ 564.363168] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 564.368058] ? trace_hardirqs_on_caller+0x310/0x310 [ 564.373064] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 564.378099] ? prepare_exit_to_usermode+0x291/0x3b0 [ 564.383102] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 564.387980] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 564.393159] RIP: 0033:0x410ff1 [ 564.396384] Code: 30 48 89 4c 24 10 e8 8e 09 00 00 48 8b 44 24 28 48 89 04 24 48 8b 44 24 30 48 89 44 24 08 e8 36 5d 04 00 48 8b 6c 24 18 48 83 20 c3 cc cc cc cc cc cc cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff [ 564.415459] RSP: 002b:00007ffce18c6db0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 564.423157] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000410ff1 [ 564.430462] RDX: 0000000000000000 RSI: 00000000007304e8 RDI: 0000000000000004 [ 564.437809] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 564.445067] R10: 00007ffce18c6ce0 R11: 0000000000000293 R12: 0000000000000000 [ 564.452347] R13: 0000000000000001 R14: 0000000000000039 R15: 0000000000000004 [ 564.459630] INFO: lockdep is turned off. [ 564.463671] NMI backtrace for cpu 0 [ 564.467324] CPU: 0 PID: 977 Comm: khungtaskd Not tainted 4.19.0-rc7+ #278 [ 564.474237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 564.483612] Call Trace: [ 564.486258] dump_stack+0x1c4/0x2b4 [ 564.489874] ? dump_stack_print_info.cold.2+0x52/0x52 [ 564.495046] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 564.500564] nmi_cpu_backtrace.cold.3+0x63/0xa2 [ 564.505398] ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f [ 564.510585] nmi_trigger_cpumask_backtrace+0x1b3/0x1ed [ 564.515856] arch_trigger_cpumask_backtrace+0x14/0x20 [ 564.521035] watchdog+0xb3e/0x1050 [ 564.524563] ? reset_hung_task_detector+0xd0/0xd0 [ 564.529395] ? __kthread_parkme+0xce/0x1a0 [ 564.533621] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 564.538703] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 564.543789] ? lockdep_hardirqs_on+0x421/0x5c0 [ 564.548354] ? trace_hardirqs_on+0xbd/0x310 [ 564.552653] ? kasan_check_read+0x11/0x20 [ 564.556779] ? __kthread_parkme+0xce/0x1a0 [ 564.560994] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 564.566428] ? kasan_check_write+0x14/0x20 [ 564.570643] ? do_raw_spin_lock+0xc1/0x200 [ 564.574859] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 564.579942] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 564.585457] ? __kthread_parkme+0xfb/0x1a0 [ 564.589678] kthread+0x35a/0x420 [ 564.593024] ? reset_hung_task_detector+0xd0/0xd0 [ 564.597843] ? kthread_bind+0x40/0x40 [ 564.601625] ret_from_fork+0x3a/0x50 [ 564.605508] Sending NMI from CPU 0 to CPUs 1: [ 564.610058] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x6/0x10 [ 564.611209] Kernel panic - not syncing: hung_task: blocked tasks [ 564.623739] CPU: 0 PID: 977 Comm: khungtaskd Not tainted 4.19.0-rc7+ #278 [ 564.630642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 564.640012] Call Trace: [ 564.642589] dump_stack+0x1c4/0x2b4 [ 564.646196] ? dump_stack_print_info.cold.2+0x52/0x52 [ 564.651435] panic+0x238/0x4e7 [ 564.654618] ? add_taint.cold.5+0x16/0x16 [ 564.658747] ? nmi_trigger_cpumask_backtrace+0x16a/0x1ed [ 564.664176] ? nmi_trigger_cpumask_backtrace+0x1c4/0x1ed [ 564.669604] ? nmi_trigger_cpumask_backtrace+0x173/0x1ed [ 564.675079] ? nmi_trigger_cpumask_backtrace+0x16a/0x1ed [ 564.680525] watchdog+0xb4f/0x1050 [ 564.684051] ? reset_hung_task_detector+0xd0/0xd0 [ 564.688877] ? __kthread_parkme+0xce/0x1a0 [ 564.693199] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 564.698290] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 564.703375] ? lockdep_hardirqs_on+0x421/0x5c0 [ 564.707940] ? trace_hardirqs_on+0xbd/0x310 [ 564.712285] ? kasan_check_read+0x11/0x20 [ 564.716429] ? __kthread_parkme+0xce/0x1a0 [ 564.720713] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 564.726195] ? kasan_check_write+0x14/0x20 [ 564.730422] ? do_raw_spin_lock+0xc1/0x200 [ 564.734647] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 564.739732] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 564.745250] ? __kthread_parkme+0xfb/0x1a0 [ 564.749468] kthread+0x35a/0x420 [ 564.752815] ? reset_hung_task_detector+0xd0/0xd0 [ 564.757636] ? kthread_bind+0x40/0x40 [ 564.761476] ret_from_fork+0x3a/0x50 [ 564.766203] Kernel Offset: disabled [ 564.769829] Rebooting in 86400 seconds..