[ 30.337155] random: sshd: uninitialized urandom read (32 bytes read) [ 35.969436] random: sshd: uninitialized urandom read (32 bytes read) [ 37.226530] random: cc1: uninitialized urandom read (8 bytes read) [ 37.692970] IPVS: ftp: loaded support on port[0] = 21 [ 65.278362] can: request_module (can-proto-0) failed. [ 65.288290] can: request_module (can-proto-0) failed. [ 67.261950] syz-fuzzer (6746) used greatest stack depth: 14536 bytes left [ 67.291587] random: sshd: uninitialized urandom read (32 bytes read) [ 67.749783] random: sshd: uninitialized urandom read (32 bytes read) [ 67.930964] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts. 2019/11/21 19:36:51 parsed 1 programs 2019/11/21 19:36:51 executed programs: 0 [ 75.254522] IPVS: ftp: loaded support on port[0] = 21 [ 75.266610] IPVS: ftp: loaded support on port[0] = 21 [ 75.268791] IPVS: ftp: loaded support on port[0] = 21 [ 75.341031] IPVS: ftp: loaded support on port[0] = 21 [ 75.407454] IPVS: ftp: loaded support on port[0] = 21 [ 75.423604] IPVS: ftp: loaded support on port[0] = 21 [ 76.135489] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.146607] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.154035] device bridge_slave_0 entered promiscuous mode [ 76.195581] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.204800] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.222384] device bridge_slave_0 entered promiscuous mode [ 76.230018] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.236384] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.243706] device bridge_slave_1 entered promiscuous mode [ 76.262347] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.269567] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.277644] device bridge_slave_0 entered promiscuous mode [ 76.300419] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.307845] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.320335] device bridge_slave_1 entered promiscuous mode [ 76.327983] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 76.344777] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.352803] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.361045] device bridge_slave_1 entered promiscuous mode [ 76.372732] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 76.394964] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 76.415492] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 76.428347] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 76.439354] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.445802] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.457068] device bridge_slave_0 entered promiscuous mode [ 76.464053] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.470481] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.478235] device bridge_slave_0 entered promiscuous mode [ 76.509923] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.520688] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.528516] device bridge_slave_1 entered promiscuous mode [ 76.534827] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 76.545025] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.552943] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.560547] device bridge_slave_1 entered promiscuous mode [ 76.578625] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.584998] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.598873] device bridge_slave_0 entered promiscuous mode [ 76.610010] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 76.620592] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 76.631729] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 76.653494] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.665172] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.674180] device bridge_slave_1 entered promiscuous mode [ 76.683186] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 76.693473] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 76.702586] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 76.713347] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 76.724442] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 76.747995] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 76.755886] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 76.775976] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 76.814541] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 76.844631] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 76.865848] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 76.891669] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 76.901225] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 76.934556] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 76.945712] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 76.974311] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 76.990551] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.024697] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 77.036016] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 77.056412] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.065356] team0: Port device team_slave_0 added [ 77.071331] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 77.079528] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.087511] team0: Port device team_slave_0 added [ 77.094498] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 77.106095] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.117256] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 77.131367] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.139032] team0: Port device team_slave_0 added [ 77.146081] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 77.165455] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.175202] team0: Port device team_slave_1 added [ 77.183070] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.194180] team0: Port device team_slave_1 added [ 77.214513] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 77.232343] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.240186] team0: Port device team_slave_0 added [ 77.247014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.255502] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.262845] team0: Port device team_slave_1 added [ 77.288342] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.296241] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.310109] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.319315] team0: Port device team_slave_1 added [ 77.329867] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 77.339611] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.348157] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.358478] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.370938] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.390955] team0: Port device team_slave_0 added [ 77.398144] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 77.407674] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.415443] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.423922] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.436605] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 77.454423] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.467136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.475176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.487768] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.500793] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.508124] team0: Port device team_slave_1 added [ 77.514754] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 77.529547] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.540305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.554874] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.563439] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 77.582228] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.592485] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.605300] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.617387] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 77.625809] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 77.635526] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.645751] team0: Port device team_slave_0 added [ 77.656174] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.665203] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.678399] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.686155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.694220] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.708179] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 77.726169] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.737235] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.752261] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 77.766379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.774805] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.784011] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 77.800062] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.810676] team0: Port device team_slave_1 added [ 77.820296] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.838602] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.869157] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.903807] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 77.915275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 77.925306] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.946080] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 77.961560] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.972539] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 77.997641] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 78.004686] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.015206] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.194640] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.201327] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.208374] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.214729] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.228658] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 78.287465] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.294137] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.300779] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.307136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.317984] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 78.328518] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.334908] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.341593] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.347973] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.363324] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 78.392316] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.398752] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.405351] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.411748] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.419320] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 78.447738] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.454125] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.460758] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.467125] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.483637] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 78.616637] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.623118] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.629805] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.636165] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.653210] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 78.907672] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.917442] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.933695] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.942914] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.950502] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.958142] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 80.273447] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.282896] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.304416] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.355870] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.413171] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 80.449751] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.462799] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 80.509283] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 80.550085] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.558166] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 80.611249] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 80.620872] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.629190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.647318] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 80.675326] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 80.691247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.698968] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.708629] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 80.721313] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.745163] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.768182] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 80.774509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.782095] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.808931] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 80.827205] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.914774] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 80.923057] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 80.931561] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.941759] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.956379] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.995658] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 81.016207] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.031408] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.041971] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.099783] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.181166] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.879675] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 82.017901] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 82.058639] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 82.307320] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 82.356079] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 82.362501] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 2019/11/21 19:36:59 executed programs: 6 [ 82.736156] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 248.426969] INFO: task syz-executor0:8444 blocked for more than 140 seconds. [ 248.434451] Not tainted 4.19.0-rc4-syzkaller #0 [ 248.440273] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 248.448306] syz-executor0 D23160 8444 6837 0x00000004 [ 248.454071] Call Trace: [ 248.456812] __schedule+0x836/0x1e90 [ 248.460628] ? pci_mmcfg_check_reserved+0x120/0x120 [ 248.465627] ? _raw_spin_unlock_irqrestore+0x63/0xd0 [ 248.470829] ? trace_hardirqs_off+0x90/0x270 [ 248.475302] ? do_raw_spin_unlock+0x203/0x2f0 [ 248.479856] ? trace_hardirqs_on+0x280/0x280 [ 248.484316] ? rcu_read_lock+0x70/0x70 [ 248.488243] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 248.493367] ? try_to_wake_up+0x10a/0x12f0 [ 248.497646] ? graph_lock+0x170/0x170 [ 248.501440] schedule+0xfe/0x460 [ 248.504789] ? migrate_swap_stop+0x930/0x930 [ 248.509241] ? __schedule+0x1e90/0x1e90 [ 248.513242] ? find_held_lock+0x36/0x1c0 [ 248.517348] ? mark_held_locks+0xc7/0x130 [ 248.521492] schedule_timeout+0x197/0x220 [ 248.525641] ? _raw_spin_unlock_irq+0x27/0x80 [ 248.530196] ? usleep_range+0x190/0x190 [ 248.534183] ? do_raw_spin_unlock+0x203/0x2f0 [ 248.538727] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 248.544268] ? kasan_check_write+0x14/0x20 [ 248.548586] ? do_raw_spin_lock+0xc1/0x200 [ 248.552826] wait_for_completion+0x427/0x8a0 [ 248.557281] ? wait_for_completion_interruptible+0x840/0x840 [ 248.563786] ? wake_up_q+0x100/0x100 [ 248.568073] ? lockdep_hardirqs_on+0x421/0x5c0 [ 248.572676] ? _raw_spin_unlock_irq+0x27/0x80 [ 248.577211] ? trace_hardirqs_on+0x77/0x280 [ 248.581526] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 248.587011] ? kasan_check_write+0x14/0x20 [ 248.591263] ? do_raw_spin_lock+0xc1/0x200 [ 248.595572] __flush_work+0x4cb/0x8e0 [ 248.599477] ? try_to_grab_pending+0x687/0x970 [ 248.604102] ? __lock_acquire+0x7ec/0x4ec0 [ 248.608589] ? insert_work+0x510/0x510 [ 248.612503] ? mark_held_locks+0xc7/0x130 [ 248.616642] ? __cancel_work_timer+0x1f9/0x7b0 [ 248.621274] ? flush_workqueue_prep_pwqs+0x730/0x730 [ 248.626379] ? lock_downgrade+0x900/0x900 [ 248.630578] __cancel_work_timer+0x3fd/0x7b0 [ 248.634985] ? kasan_check_read+0x11/0x20 [ 248.639180] ? try_to_grab_pending+0x970/0x970 [ 248.643826] ? unwind_dump+0x190/0x190 [ 248.647815] ? is_bpf_text_address+0x7d/0xe0 [ 248.652225] ? kernel_text_address+0x79/0xf0 [ 248.656620] ? __kernel_text_address+0xd/0x40 [ 248.661175] ? unwind_get_return_address+0x61/0xa0 [ 248.666155] ? __save_stack_trace+0x8d/0xf0 [ 248.670679] ? save_stack+0xa9/0xd0 [ 248.674336] ? save_stack+0x43/0xd0 [ 248.677994] ? __kasan_slab_free+0x102/0x150 [ 248.682393] ? kasan_slab_free+0xe/0x10 [ 248.686381] ? kfree+0xcf/0x230 [ 248.689704] ? print_usage_bug+0xc0/0xc0 [ 248.693868] ? __sock_release+0xc7/0x230 [ 248.698489] ? sock_close+0x10/0x20 [ 248.702145] cancel_delayed_work_sync+0xe/0x10 [ 248.706854] tls_sw_free_resources_tx+0x1ce/0xc60 [ 248.711744] ? do_raw_spin_unlock+0x203/0x2f0 [ 248.716244] ? trace_hardirqs_on+0x280/0x280 [ 248.720714] ? kasan_check_write+0x14/0x20 [ 248.724946] ? tls_sw_poll+0x160/0x160 [ 248.728929] ? mark_held_locks+0xc7/0x130 [ 248.733074] ? kfree+0x107/0x230 [ 248.736422] ? tls_sk_proto_close+0x4a4/0x6e0 [ 248.740959] ? lockdep_hardirqs_on+0x421/0x5c0 [ 248.745552] ? kfree+0x107/0x230 [ 248.748955] ? trace_hardirqs_on+0x77/0x280 [ 248.753301] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 248.758795] ? __kasan_slab_free+0x119/0x150 [ 248.763231] ? tls_sk_proto_close+0x4a4/0x6e0 [ 248.767858] ? tcp_check_oom+0x520/0x520 [ 248.771937] tls_sk_proto_close+0x4ac/0x6e0 [ 248.776242] ? tls_push_pending_closed_record+0x250/0x250 [ 248.781860] ? down_write+0x8a/0x130 [ 248.785679] inet_release+0xde/0x1c0 [ 248.789483] inet6_release+0x46/0x60 [ 248.793201] __sock_release+0xc7/0x230 [ 248.797135] sock_close+0x10/0x20 [ 248.800642] __fput+0x303/0xab0 [ 248.803910] ? _raw_spin_unlock_irq+0x27/0x80 [ 248.808477] ? get_max_files+0x10/0x10 [ 248.812398] ? trace_hardirqs_on+0x77/0x280 [ 248.816782] ? do_raw_spin_unlock+0x203/0x2f0 [ 248.821282] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 248.827653] ? kasan_check_write+0x14/0x20 [ 248.831900] ? do_raw_spin_lock+0xc1/0x200 [ 248.836282] ____fput+0x9/0x10 [ 248.839681] task_work_run+0x19f/0x240 [ 248.843595] ? task_work_cancel+0x270/0x270 [ 248.848046] ? __close_fd+0x1fc/0x340 [ 248.851930] exit_to_usermode_loop+0x26e/0x300 [ 248.856508] ? syscall_slow_exit_work+0x380/0x380 [ 248.861417] do_syscall_64+0x587/0x700 [ 248.865309] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 248.870213] ? syscall_return_slowpath+0x4e0/0x4e0 [ 248.875150] ? trace_hardirqs_on_caller+0x250/0x250 [ 248.880247] ? prepare_exit_to_usermode+0x300/0x300 [ 248.885461] ? recalc_sigpending_tsk+0x130/0x130 [ 248.890319] ? prepare_exit_to_usermode+0x1a5/0x300 [ 248.895476] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 248.900520] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 248.905966] RIP: 0033:0x411211 [ 248.909447] Code: Bad RIP value. [ 248.912815] RSP: 002b:00007fff3b021d80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 248.920732] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 248.928038] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 248.935443] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 248.942882] R10: 00007fff3b021cb0 R11: 0000000000000293 R12: 0000000000000000 [ 248.950343] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 248.958238] INFO: task syz-executor1:8454 blocked for more than 140 seconds. [ 248.965557] Not tainted 4.19.0-rc4-syzkaller #0 [ 248.970795] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 248.979515] syz-executor1 D23160 8454 6836 0x00000004 [ 248.985249] Call Trace: [ 248.987946] __schedule+0x836/0x1e90 [ 248.991699] ? pci_mmcfg_check_reserved+0x120/0x120 [ 248.996773] ? lock_downgrade+0x900/0x900 [ 249.000925] ? _raw_spin_unlock_irqrestore+0x63/0xd0 [ 249.006049] ? trace_hardirqs_off+0x90/0x270 [ 249.010518] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.015280] ? trace_hardirqs_on+0x280/0x280 [ 249.019742] ? rcu_read_lock+0x70/0x70 [ 249.023636] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 249.028815] ? try_to_wake_up+0x10a/0x12f0 [ 249.033054] ? graph_lock+0x170/0x170 [ 249.036904] schedule+0xfe/0x460 [ 249.040272] ? migrate_swap_stop+0x930/0x930 [ 249.044667] ? __schedule+0x1e90/0x1e90 [ 249.048694] ? find_held_lock+0x36/0x1c0 [ 249.052774] ? mark_held_locks+0xc7/0x130 [ 249.056969] schedule_timeout+0x197/0x220 [ 249.061159] ? _raw_spin_unlock_irq+0x27/0x80 [ 249.065688] ? usleep_range+0x190/0x190 [ 249.069781] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.074426] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.080108] ? kasan_check_write+0x14/0x20 [ 249.084478] ? do_raw_spin_lock+0xc1/0x200 [ 249.089265] wait_for_completion+0x427/0x8a0 [ 249.093718] ? wait_for_completion_interruptible+0x840/0x840 [ 249.099566] ? wake_up_q+0x100/0x100 [ 249.103312] ? lockdep_hardirqs_on+0x421/0x5c0 [ 249.107936] ? _raw_spin_unlock_irq+0x27/0x80 [ 249.112471] ? trace_hardirqs_on+0x77/0x280 [ 249.116934] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.122390] ? kasan_check_write+0x14/0x20 [ 249.126649] ? do_raw_spin_lock+0xc1/0x200 [ 249.131368] __flush_work+0x4cb/0x8e0 [ 249.135320] ? try_to_grab_pending+0x687/0x970 [ 249.140392] ? __lock_acquire+0x7ec/0x4ec0 [ 249.144780] ? insert_work+0x510/0x510 [ 249.148802] ? mark_held_locks+0xc7/0x130 [ 249.152960] ? __cancel_work_timer+0x1f9/0x7b0 [ 249.157742] ? flush_workqueue_prep_pwqs+0x730/0x730 [ 249.162894] ? lock_downgrade+0x900/0x900 [ 249.167112] __cancel_work_timer+0x3fd/0x7b0 [ 249.171731] ? kasan_check_read+0x11/0x20 [ 249.176029] ? try_to_grab_pending+0x970/0x970 [ 249.180707] ? unwind_dump+0x190/0x190 [ 249.184810] ? is_bpf_text_address+0x7d/0xe0 [ 249.189341] ? kernel_text_address+0x79/0xf0 [ 249.193863] ? __kernel_text_address+0xd/0x40 [ 249.198546] ? unwind_get_return_address+0x61/0xa0 [ 249.203699] ? __save_stack_trace+0x8d/0xf0 [ 249.208082] ? save_stack+0xa9/0xd0 [ 249.211713] ? save_stack+0x43/0xd0 [ 249.215602] ? __kasan_slab_free+0x102/0x150 [ 249.220826] ? kasan_slab_free+0xe/0x10 [ 249.224818] ? kfree+0xcf/0x230 [ 249.228208] ? print_usage_bug+0xc0/0xc0 [ 249.232317] ? __sock_release+0xc7/0x230 [ 249.236375] ? sock_close+0x10/0x20 [ 249.240057] cancel_delayed_work_sync+0xe/0x10 [ 249.244642] tls_sw_free_resources_tx+0x1ce/0xc60 [ 249.249618] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.254128] ? trace_hardirqs_on+0x280/0x280 [ 249.258584] ? kasan_check_write+0x14/0x20 [ 249.262821] ? tls_sw_poll+0x160/0x160 [ 249.266770] ? mark_held_locks+0xc7/0x130 [ 249.270919] ? kfree+0x107/0x230 [ 249.274273] ? tls_sk_proto_close+0x4a4/0x6e0 [ 249.278830] ? lockdep_hardirqs_on+0x421/0x5c0 [ 249.283411] ? kfree+0x107/0x230 [ 249.286832] ? trace_hardirqs_on+0x77/0x280 [ 249.291153] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.296603] ? __kasan_slab_free+0x119/0x150 [ 249.301097] ? tls_sk_proto_close+0x4a4/0x6e0 [ 249.305855] ? tcp_check_oom+0x520/0x520 [ 249.310119] tls_sk_proto_close+0x4ac/0x6e0 [ 249.314713] ? tls_push_pending_closed_record+0x250/0x250 [ 249.320619] ? down_write+0x8a/0x130 [ 249.324345] inet_release+0xde/0x1c0 [ 249.328102] inet6_release+0x46/0x60 [ 249.331819] __sock_release+0xc7/0x230 [ 249.335736] sock_close+0x10/0x20 [ 249.339271] __fput+0x303/0xab0 [ 249.342560] ? _raw_spin_unlock_irq+0x27/0x80 [ 249.347642] ? get_max_files+0x10/0x10 [ 249.351675] ? trace_hardirqs_on+0x77/0x280 [ 249.356057] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.360638] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.366287] ? kasan_check_write+0x14/0x20 [ 249.370690] ? do_raw_spin_lock+0xc1/0x200 [ 249.374934] ____fput+0x9/0x10 [ 249.378251] task_work_run+0x19f/0x240 [ 249.382183] ? task_work_cancel+0x270/0x270 [ 249.386806] ? __close_fd+0x1fc/0x340 [ 249.390618] exit_to_usermode_loop+0x26e/0x300 [ 249.395211] ? syscall_slow_exit_work+0x380/0x380 [ 249.400116] do_syscall_64+0x587/0x700 [ 249.404009] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 249.409149] ? syscall_return_slowpath+0x4e0/0x4e0 [ 249.414089] ? trace_hardirqs_on_caller+0x250/0x250 [ 249.419372] ? prepare_exit_to_usermode+0x300/0x300 [ 249.424392] ? recalc_sigpending_tsk+0x130/0x130 [ 249.431018] ? prepare_exit_to_usermode+0x1a5/0x300 [ 249.436044] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 249.440958] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.446151] RIP: 0033:0x411211 [ 249.449573] Code: Bad RIP value. [ 249.453196] RSP: 002b:00007fff68b10a10 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 249.461024] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 249.468617] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 249.475911] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 249.483785] R10: 00007fff68b10940 R11: 0000000000000293 R12: 0000000000000000 [ 249.491114] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 249.498485] INFO: task syz-executor2:8474 blocked for more than 140 seconds. [ 249.505665] Not tainted 4.19.0-rc4-syzkaller #0 [ 249.510916] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 249.518927] syz-executor2 D23160 8474 6845 0x00000004 [ 249.524549] Call Trace: [ 249.527172] __schedule+0x836/0x1e90 [ 249.530887] ? pci_mmcfg_check_reserved+0x120/0x120 [ 249.535889] ? lock_downgrade+0x900/0x900 [ 249.540092] ? _raw_spin_unlock_irqrestore+0x63/0xd0 [ 249.545199] ? trace_hardirqs_off+0x90/0x270 [ 249.549648] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.554143] ? trace_hardirqs_on+0x280/0x280 [ 249.558594] ? rcu_read_lock+0x70/0x70 [ 249.562491] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 249.567638] ? try_to_wake_up+0x10a/0x12f0 [ 249.571938] ? graph_lock+0x170/0x170 [ 249.575729] schedule+0xfe/0x460 [ 249.579138] ? migrate_swap_stop+0x930/0x930 [ 249.583549] ? __schedule+0x1e90/0x1e90 [ 249.587563] ? find_held_lock+0x36/0x1c0 [ 249.591626] ? mark_held_locks+0xc7/0x130 [ 249.595870] schedule_timeout+0x197/0x220 [ 249.600237] ? _raw_spin_unlock_irq+0x27/0x80 [ 249.604767] ? usleep_range+0x190/0x190 [ 249.609319] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.613820] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.619324] ? kasan_check_write+0x14/0x20 [ 249.623561] ? do_raw_spin_lock+0xc1/0x200 [ 249.628184] wait_for_completion+0x427/0x8a0 [ 249.632629] ? wait_for_completion_interruptible+0x840/0x840 [ 249.638496] ? wake_up_q+0x100/0x100 [ 249.642212] ? lockdep_hardirqs_on+0x421/0x5c0 [ 249.646838] ? _raw_spin_unlock_irq+0x27/0x80 [ 249.651331] ? trace_hardirqs_on+0x77/0x280 [ 249.655638] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.661136] ? kasan_check_write+0x14/0x20 [ 249.665370] ? do_raw_spin_lock+0xc1/0x200 [ 249.669645] __flush_work+0x4cb/0x8e0 [ 249.673567] ? try_to_grab_pending+0x687/0x970 [ 249.678276] ? __lock_acquire+0x7ec/0x4ec0 [ 249.682510] ? insert_work+0x510/0x510 [ 249.686391] ? mark_held_locks+0xc7/0x130 [ 249.690581] ? __cancel_work_timer+0x1f9/0x7b0 [ 249.695162] ? flush_workqueue_prep_pwqs+0x730/0x730 [ 249.700318] ? lock_downgrade+0x900/0x900 [ 249.704495] __cancel_work_timer+0x3fd/0x7b0 [ 249.708939] ? kasan_check_read+0x11/0x20 [ 249.713100] ? try_to_grab_pending+0x970/0x970 [ 249.717899] ? unwind_dump+0x190/0x190 [ 249.721832] ? is_bpf_text_address+0x7d/0xe0 [ 249.726229] ? kernel_text_address+0x79/0xf0 [ 249.730696] ? __kernel_text_address+0xd/0x40 [ 249.735189] ? unwind_get_return_address+0x61/0xa0 [ 249.740706] ? __save_stack_trace+0x8d/0xf0 [ 249.745066] ? save_stack+0xa9/0xd0 [ 249.748727] ? save_stack+0x43/0xd0 [ 249.752359] ? __kasan_slab_free+0x102/0x150 [ 249.756808] ? kasan_slab_free+0xe/0x10 [ 249.760816] ? kfree+0xcf/0x230 [ 249.764081] ? print_usage_bug+0xc0/0xc0 [ 249.768186] ? __sock_release+0xc7/0x230 [ 249.772245] ? sock_close+0x10/0x20 [ 249.776010] cancel_delayed_work_sync+0xe/0x10 [ 249.780694] tls_sw_free_resources_tx+0x1ce/0xc60 [ 249.785674] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.790215] ? trace_hardirqs_on+0x280/0x280 [ 249.794691] ? kasan_check_write+0x14/0x20 [ 249.799043] ? tls_sw_poll+0x160/0x160 [ 249.802930] ? mark_held_locks+0xc7/0x130 [ 249.807117] ? kfree+0x107/0x230 [ 249.810488] ? tls_sk_proto_close+0x4a4/0x6e0 [ 249.814971] ? lockdep_hardirqs_on+0x421/0x5c0 [ 249.819591] ? kfree+0x107/0x230 [ 249.823027] ? trace_hardirqs_on+0x77/0x280 [ 249.827388] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.832971] ? __kasan_slab_free+0x119/0x150 [ 249.837445] ? tls_sk_proto_close+0x4a4/0x6e0 [ 249.841946] ? tcp_check_oom+0x520/0x520 [ 249.846000] tls_sk_proto_close+0x4ac/0x6e0 [ 249.850468] ? tls_push_pending_closed_record+0x250/0x250 [ 249.856006] ? down_write+0x8a/0x130 [ 249.859768] inet_release+0xde/0x1c0 [ 249.863596] inet6_release+0x46/0x60 [ 249.868038] __sock_release+0xc7/0x230 [ 249.871930] sock_close+0x10/0x20 [ 249.875367] __fput+0x303/0xab0 [ 249.878764] ? _raw_spin_unlock_irq+0x27/0x80 [ 249.883257] ? get_max_files+0x10/0x10 [ 249.887187] ? trace_hardirqs_on+0x77/0x280 [ 249.891519] ? do_raw_spin_unlock+0x203/0x2f0 [ 249.895997] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 249.901491] ? kasan_check_write+0x14/0x20 [ 249.905725] ? do_raw_spin_lock+0xc1/0x200 [ 249.910010] ____fput+0x9/0x10 [ 249.913371] task_work_run+0x19f/0x240 [ 249.917297] ? task_work_cancel+0x270/0x270 [ 249.921750] ? __close_fd+0x1fc/0x340 [ 249.925541] exit_to_usermode_loop+0x26e/0x300 [ 249.930181] ? syscall_slow_exit_work+0x380/0x380 [ 249.935032] do_syscall_64+0x587/0x700 [ 249.938956] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 249.943799] ? syscall_return_slowpath+0x4e0/0x4e0 [ 249.948893] ? trace_hardirqs_on_caller+0x250/0x250 [ 249.953915] ? prepare_exit_to_usermode+0x300/0x300 [ 249.959155] ? recalc_sigpending_tsk+0x130/0x130 [ 249.963959] ? prepare_exit_to_usermode+0x1a5/0x300 [ 249.969026] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 249.973873] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 249.979102] RIP: 0033:0x411211 [ 249.982304] Code: Bad RIP value. [ 249.985752] RSP: 002b:00007ffc72ea4f00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 249.993870] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 250.001607] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 250.008927] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 250.016432] R10: 00007ffc72ea4e30 R11: 0000000000000293 R12: 0000000000000000 [ 250.023942] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000002 [ 250.031465] INFO: task syz-executor4:8479 blocked for more than 140 seconds. [ 250.038808] Not tainted 4.19.0-rc4-syzkaller #0 [ 250.044114] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 250.052125] syz-executor4 D20456 8479 6846 0x00000004 [ 250.057786] Call Trace: [ 250.060368] __schedule+0x836/0x1e90 [ 250.064068] ? pci_mmcfg_check_reserved+0x120/0x120 [ 250.069149] ? lock_downgrade+0x900/0x900 [ 250.073299] ? _raw_spin_unlock_irqrestore+0x63/0xd0 [ 250.078459] ? trace_hardirqs_off+0x90/0x270 [ 250.082980] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.087517] ? trace_hardirqs_on+0x280/0x280 [ 250.091953] ? rcu_read_lock+0x70/0x70 [ 250.095829] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 250.100975] ? try_to_wake_up+0x10a/0x12f0 [ 250.105212] ? graph_lock+0x170/0x170 [ 250.109118] schedule+0xfe/0x460 [ 250.112493] ? migrate_swap_stop+0x930/0x930 [ 250.116987] ? __schedule+0x1e90/0x1e90 [ 250.121090] ? find_held_lock+0x36/0x1c0 [ 250.125142] ? mark_held_locks+0xc7/0x130 [ 250.129979] schedule_timeout+0x197/0x220 [ 250.134128] ? _raw_spin_unlock_irq+0x27/0x80 [ 250.138673] ? usleep_range+0x190/0x190 [ 250.142647] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.147187] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 250.152927] ? kasan_check_write+0x14/0x20 [ 250.157373] ? do_raw_spin_lock+0xc1/0x200 [ 250.161625] wait_for_completion+0x427/0x8a0 [ 250.166060] ? wait_for_completion_interruptible+0x840/0x840 [ 250.171922] ? wake_up_q+0x100/0x100 [ 250.175639] ? lockdep_hardirqs_on+0x421/0x5c0 [ 250.180375] ? _raw_spin_unlock_irq+0x27/0x80 [ 250.184884] ? trace_hardirqs_on+0x77/0x280 [ 250.189304] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 250.194761] ? kasan_check_write+0x14/0x20 [ 250.199041] ? do_raw_spin_lock+0xc1/0x200 [ 250.203279] __flush_work+0x4cb/0x8e0 [ 250.207121] ? try_to_grab_pending+0x687/0x970 [ 250.211762] ? __lock_acquire+0x7ec/0x4ec0 [ 250.215985] ? insert_work+0x510/0x510 [ 250.219917] ? mark_held_locks+0xc7/0x130 [ 250.224092] ? __cancel_work_timer+0x1f9/0x7b0 [ 250.228757] ? flush_workqueue_prep_pwqs+0x730/0x730 [ 250.233893] ? lock_downgrade+0x900/0x900 [ 250.238119] __cancel_work_timer+0x3fd/0x7b0 [ 250.242531] ? kasan_check_read+0x11/0x20 [ 250.246662] ? try_to_grab_pending+0x970/0x970 [ 250.251300] ? unwind_dump+0x190/0x190 [ 250.255191] ? is_bpf_text_address+0x7d/0xe0 [ 250.260141] ? kernel_text_address+0x79/0xf0 [ 250.264686] ? __kernel_text_address+0xd/0x40 [ 250.269225] ? unwind_get_return_address+0x61/0xa0 [ 250.274217] ? __save_stack_trace+0x8d/0xf0 [ 250.278744] ? save_stack+0xa9/0xd0 [ 250.282376] ? save_stack+0x43/0xd0 [ 250.286289] ? __kasan_slab_free+0x102/0x150 [ 250.290756] ? kasan_slab_free+0xe/0x10 [ 250.294728] ? kfree+0xcf/0x230 [ 250.298237] ? print_usage_bug+0xc0/0xc0 [ 250.302299] ? __sock_release+0xc7/0x230 [ 250.306347] ? sock_close+0x10/0x20 [ 250.310025] cancel_delayed_work_sync+0xe/0x10 [ 250.314773] tls_sw_free_resources_tx+0x1ce/0xc60 [ 250.319927] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.325034] ? trace_hardirqs_on+0x280/0x280 [ 250.329765] ? kasan_check_write+0x14/0x20 [ 250.334165] ? tls_sw_poll+0x160/0x160 [ 250.338240] ? mark_held_locks+0xc7/0x130 [ 250.342569] ? kfree+0x107/0x230 [ 250.346038] ? tls_sk_proto_close+0x4a4/0x6e0 [ 250.351510] ? lockdep_hardirqs_on+0x421/0x5c0 [ 250.356110] ? kfree+0x107/0x230 [ 250.359556] ? trace_hardirqs_on+0x77/0x280 [ 250.363879] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 250.369375] ? __kasan_slab_free+0x119/0x150 [ 250.373785] ? tls_sk_proto_close+0x4a4/0x6e0 [ 250.378405] ? tcp_check_oom+0x520/0x520 [ 250.382500] tls_sk_proto_close+0x4ac/0x6e0 [ 250.387367] ? tls_push_pending_closed_record+0x250/0x250 [ 250.392907] ? down_write+0x8a/0x130 [ 250.396608] inet_release+0xde/0x1c0 [ 250.400698] inet6_release+0x46/0x60 [ 250.404421] __sock_release+0xc7/0x230 [ 250.408356] sock_close+0x10/0x20 [ 250.411828] __fput+0x303/0xab0 [ 250.415098] ? _raw_spin_unlock_irq+0x27/0x80 [ 250.419646] ? get_max_files+0x10/0x10 [ 250.423551] ? trace_hardirqs_on+0x77/0x280 [ 250.427913] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.432468] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 250.437957] ? kasan_check_write+0x14/0x20 [ 250.442191] ? do_raw_spin_lock+0xc1/0x200 [ 250.446418] ____fput+0x9/0x10 [ 250.449653] task_work_run+0x19f/0x240 [ 250.453545] ? task_work_cancel+0x270/0x270 [ 250.458092] ? __close_fd+0x1fc/0x340 [ 250.461991] exit_to_usermode_loop+0x26e/0x300 [ 250.466585] ? syscall_slow_exit_work+0x380/0x380 [ 250.471517] do_syscall_64+0x587/0x700 [ 250.475411] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 250.480334] ? syscall_return_slowpath+0x4e0/0x4e0 [ 250.485267] ? trace_hardirqs_on_caller+0x250/0x250 [ 250.490486] ? prepare_exit_to_usermode+0x1a5/0x300 [ 250.495511] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 250.500414] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 250.505660] RIP: 0033:0x411211 [ 250.508922] Code: Bad RIP value. [ 250.512388] RSP: 002b:00007ffe30f202b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 250.520667] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 250.528140] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 250.535411] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 250.542742] R10: 00007ffe30f201e0 R11: 0000000000000293 R12: 0000000000000000 [ 250.550044] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000004 [ 250.557541] INFO: task syz-executor5:8482 blocked for more than 140 seconds. [ 250.564822] Not tainted 4.19.0-rc4-syzkaller #0 [ 250.570080] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 250.578350] syz-executor5 D23160 8482 6864 0x00000004 [ 250.583978] Call Trace: [ 250.586630] __schedule+0x836/0x1e90 [ 250.590398] ? pci_mmcfg_check_reserved+0x120/0x120 [ 250.595473] ? put_task_stack+0x67/0x200 [ 250.599591] ? lockdep_hardirqs_on+0x421/0x5c0 [ 250.604287] ? account_kernel_stack+0x25f/0x360 [ 250.609115] ? trace_hardirqs_on+0x77/0x280 [ 250.615048] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.619671] ? __free_pages+0x149/0x190 [ 250.623652] ? free_unref_page+0x960/0x960 [ 250.627932] ? graph_lock+0x170/0x170 [ 250.631732] schedule+0xfe/0x460 [ 250.635083] ? __schedule+0x1e90/0x1e90 [ 250.639107] ? __switch_to_asm+0x34/0x70 [ 250.643170] ? find_held_lock+0x36/0x1c0 [ 250.647781] ? mark_held_locks+0xc7/0x130 [ 250.651937] schedule_timeout+0x197/0x220 [ 250.656068] ? _raw_spin_unlock_irq+0x27/0x80 [ 250.660635] ? usleep_range+0x190/0x190 [ 250.664709] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.669418] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 250.674920] ? kasan_check_write+0x14/0x20 [ 250.679353] ? do_raw_spin_lock+0xc1/0x200 [ 250.683604] wait_for_completion+0x427/0x8a0 [ 250.688258] ? wait_for_completion_interruptible+0x840/0x840 [ 250.694294] ? wake_up_q+0x100/0x100 [ 250.698099] ? lockdep_hardirqs_on+0x421/0x5c0 [ 250.702688] ? preempt_schedule+0x4d/0x60 [ 250.706954] ? preempt_schedule_common+0x1f/0xd0 [ 250.711716] ? preempt_schedule+0x4d/0x60 [ 250.715857] ? ___preempt_schedule+0x16/0x18 [ 250.720338] __flush_work+0x4cb/0x8e0 [ 250.724140] ? try_to_grab_pending+0x687/0x970 [ 250.728776] ? __lock_acquire+0x7ec/0x4ec0 [ 250.733010] ? insert_work+0x510/0x510 [ 250.736945] ? mark_held_locks+0xc7/0x130 [ 250.741093] ? __cancel_work_timer+0x1f9/0x7b0 [ 250.745659] ? flush_workqueue_prep_pwqs+0x730/0x730 [ 250.750860] ? lock_downgrade+0x900/0x900 [ 250.755064] __cancel_work_timer+0x3fd/0x7b0 [ 250.759671] ? kasan_check_read+0x11/0x20 [ 250.763831] ? try_to_grab_pending+0x970/0x970 [ 250.768470] ? unwind_dump+0x190/0x190 [ 250.772366] ? is_bpf_text_address+0x7d/0xe0 [ 250.777479] ? kernel_text_address+0x79/0xf0 [ 250.782006] ? __kernel_text_address+0xd/0x40 [ 250.786488] ? unwind_get_return_address+0x61/0xa0 [ 250.791490] ? __save_stack_trace+0x8d/0xf0 [ 250.795819] ? save_stack+0xa9/0xd0 [ 250.799715] ? save_stack+0x43/0xd0 [ 250.803340] ? __kasan_slab_free+0x102/0x150 [ 250.807780] ? kasan_slab_free+0xe/0x10 [ 250.811958] ? kfree+0xcf/0x230 [ 250.815270] ? print_usage_bug+0xc0/0xc0 [ 250.819399] ? __sock_release+0xc7/0x230 [ 250.823462] ? sock_close+0x10/0x20 [ 250.827196] cancel_delayed_work_sync+0xe/0x10 [ 250.831779] tls_sw_free_resources_tx+0x1ce/0xc60 [ 250.836607] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.841199] ? trace_hardirqs_on+0x280/0x280 [ 250.845688] ? kasan_check_write+0x14/0x20 [ 250.849976] ? tls_sw_poll+0x160/0x160 [ 250.854231] ? mark_held_locks+0xc7/0x130 [ 250.858450] ? kfree+0x107/0x230 [ 250.861963] ? tls_sk_proto_close+0x4a4/0x6e0 [ 250.866661] ? lockdep_hardirqs_on+0x421/0x5c0 [ 250.871470] ? kfree+0x107/0x230 [ 250.875206] ? trace_hardirqs_on+0x77/0x280 [ 250.879718] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 250.885329] ? __kasan_slab_free+0x119/0x150 [ 250.889854] ? tls_sk_proto_close+0x4a4/0x6e0 [ 250.894355] ? tcp_check_oom+0x520/0x520 [ 250.898481] tls_sk_proto_close+0x4ac/0x6e0 [ 250.902814] ? tls_push_pending_closed_record+0x250/0x250 [ 250.908915] ? down_write+0x8a/0x130 [ 250.912631] inet_release+0xde/0x1c0 [ 250.916331] inet6_release+0x46/0x60 [ 250.920096] __sock_release+0xc7/0x230 [ 250.924020] sock_close+0x10/0x20 [ 250.927522] __fput+0x303/0xab0 [ 250.930805] ? _raw_spin_unlock_irq+0x27/0x80 [ 250.935287] ? get_max_files+0x10/0x10 [ 250.939240] ? trace_hardirqs_on+0x77/0x280 [ 250.943565] ? do_raw_spin_unlock+0x203/0x2f0 [ 250.948104] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 250.953695] ? kasan_check_write+0x14/0x20 [ 250.957973] ? do_raw_spin_lock+0xc1/0x200 [ 250.962212] ____fput+0x9/0x10 [ 250.965393] task_work_run+0x19f/0x240 [ 250.969326] ? task_work_cancel+0x270/0x270 [ 250.973650] ? __close_fd+0x1fc/0x340 [ 250.977494] exit_to_usermode_loop+0x26e/0x300 [ 250.982091] ? syscall_slow_exit_work+0x380/0x380 [ 250.987173] do_syscall_64+0x587/0x700 [ 250.991574] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 250.996403] ? syscall_return_slowpath+0x4e0/0x4e0 [ 251.001393] ? trace_hardirqs_on_caller+0x250/0x250 [ 251.006590] ? prepare_exit_to_usermode+0x300/0x300 [ 251.011787] ? recalc_sigpending_tsk+0x130/0x130 [ 251.016664] ? prepare_exit_to_usermode+0x1a5/0x300 [ 251.021754] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 251.026806] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 251.031997] RIP: 0033:0x411211 [ 251.035188] Code: Bad RIP value. [ 251.039139] RSP: 002b:00007fff66e8aaa0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 251.046920] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 251.054310] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 251.061640] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 251.069001] R10: 00007fff66e8a9d0 R11: 0000000000000293 R12: 0000000000000000 [ 251.076291] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000005 [ 251.083629] INFO: task syz-executor3:8493 blocked for more than 140 seconds. [ 251.091176] Not tainted 4.19.0-rc4-syzkaller #0 [ 251.096358] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 251.104687] syz-executor3 D22752 8493 6833 0x00000004 [ 251.110521] Call Trace: [ 251.113140] __schedule+0x836/0x1e90 [ 251.116919] ? pci_mmcfg_check_reserved+0x120/0x120 [ 251.122118] ? lock_downgrade+0x900/0x900 [ 251.126378] ? _raw_spin_unlock_irqrestore+0x63/0xd0 [ 251.131546] ? trace_hardirqs_off+0x90/0x270 [ 251.136083] ? do_raw_spin_unlock+0x203/0x2f0 [ 251.140681] ? trace_hardirqs_on+0x280/0x280 [ 251.145098] ? rcu_read_lock+0x70/0x70 [ 251.149206] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 251.154539] ? try_to_wake_up+0x10a/0x12f0 [ 251.159028] ? graph_lock+0x170/0x170 [ 251.162944] schedule+0xfe/0x460 [ 251.166302] ? migrate_swap_stop+0x930/0x930 [ 251.171286] ? __schedule+0x1e90/0x1e90 [ 251.175275] ? find_held_lock+0x36/0x1c0 [ 251.179386] ? mark_held_locks+0xc7/0x130 [ 251.183589] schedule_timeout+0x197/0x220 [ 251.187783] ? _raw_spin_unlock_irq+0x27/0x80 [ 251.192278] ? usleep_range+0x190/0x190 [ 251.196419] ? do_raw_spin_unlock+0x203/0x2f0 [ 251.200971] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 251.206458] ? kasan_check_write+0x14/0x20 [ 251.210748] ? do_raw_spin_lock+0xc1/0x200 [ 251.214989] wait_for_completion+0x427/0x8a0 [ 251.219681] ? wait_for_completion_interruptible+0x840/0x840 [ 251.225660] ? wake_up_q+0x100/0x100 [ 251.229500] ? lockdep_hardirqs_on+0x421/0x5c0 [ 251.234198] ? _raw_spin_unlock_irq+0x27/0x80 [ 251.239138] ? trace_hardirqs_on+0x77/0x280 [ 251.243636] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 251.249145] ? kasan_check_write+0x14/0x20 [ 251.253388] ? do_raw_spin_lock+0xc1/0x200 [ 251.257688] __flush_work+0x4cb/0x8e0 [ 251.261491] ? try_to_grab_pending+0x687/0x970 [ 251.266092] ? __lock_acquire+0x7ec/0x4ec0 [ 251.270517] ? insert_work+0x510/0x510 [ 251.274428] ? mark_held_locks+0xc7/0x130 [ 251.278647] ? __cancel_work_timer+0x1f9/0x7b0 [ 251.283239] ? flush_workqueue_prep_pwqs+0x730/0x730 [ 251.288407] ? lock_downgrade+0x900/0x900 [ 251.292715] __cancel_work_timer+0x3fd/0x7b0 [ 251.297758] ? kasan_check_read+0x11/0x20 [ 251.301917] ? try_to_grab_pending+0x970/0x970 [ 251.306539] ? unwind_dump+0x190/0x190 [ 251.310499] ? is_bpf_text_address+0x7d/0xe0 [ 251.315037] ? kernel_text_address+0x79/0xf0 [ 251.319744] ? __kernel_text_address+0xd/0x40 [ 251.324373] ? unwind_get_return_address+0x61/0xa0 [ 251.329380] ? __save_stack_trace+0x8d/0xf0 [ 251.333848] ? save_stack+0xa9/0xd0 [ 251.337605] ? save_stack+0x43/0xd0 [ 251.341240] ? __kasan_slab_free+0x102/0x150 [ 251.345640] ? kasan_slab_free+0xe/0x10 [ 251.349678] ? kfree+0xcf/0x230 [ 251.353072] ? print_usage_bug+0xc0/0xc0 [ 251.357185] ? __sock_release+0xc7/0x230 [ 251.361248] ? sock_close+0x10/0x20 [ 251.365012] cancel_delayed_work_sync+0xe/0x10 [ 251.369804] tls_sw_free_resources_tx+0x1ce/0xc60 [ 251.374648] ? do_raw_spin_unlock+0x203/0x2f0 [ 251.379463] ? trace_hardirqs_on+0x280/0x280 [ 251.383911] ? kasan_check_write+0x14/0x20 [ 251.388204] ? tls_sw_poll+0x160/0x160 [ 251.392125] ? mark_held_locks+0xc7/0x130 [ 251.396264] ? kfree+0x107/0x230 [ 251.399672] ? tls_sk_proto_close+0x4a4/0x6e0 [ 251.404215] ? lockdep_hardirqs_on+0x421/0x5c0 [ 251.409074] ? kfree+0x107/0x230 [ 251.412709] ? trace_hardirqs_on+0x77/0x280 [ 251.417110] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 251.422667] ? __kasan_slab_free+0x119/0x150 [ 251.427646] ? tls_sk_proto_close+0x4a4/0x6e0 [ 251.432337] ? tcp_check_oom+0x520/0x520 [ 251.436400] tls_sk_proto_close+0x4ac/0x6e0 [ 251.440975] ? tls_push_pending_closed_record+0x250/0x250 [ 251.446920] ? down_write+0x8a/0x130 [ 251.450632] inet_release+0xde/0x1c0 [ 251.454485] inet6_release+0x46/0x60 [ 251.458309] __sock_release+0xc7/0x230 [ 251.462314] sock_close+0x10/0x20 [ 251.465793] __fput+0x303/0xab0 [ 251.469237] ? _raw_spin_unlock_irq+0x27/0x80 [ 251.473854] ? get_max_files+0x10/0x10 [ 251.477872] ? trace_hardirqs_on+0x77/0x280 [ 251.482283] ? do_raw_spin_unlock+0x203/0x2f0 [ 251.486831] ? __bpf_trace_preemptirq_template+0x10/0x10 [ 251.492308] ? kasan_check_write+0x14/0x20 [ 251.496530] ? do_raw_spin_lock+0xc1/0x200 [ 251.500966] ____fput+0x9/0x10 [ 251.504158] task_work_run+0x19f/0x240 [ 251.508096] ? task_work_cancel+0x270/0x270 [ 251.512471] ? __close_fd+0x1fc/0x340 [ 251.516266] exit_to_usermode_loop+0x26e/0x300 [ 251.520897] ? syscall_slow_exit_work+0x380/0x380 [ 251.525752] do_syscall_64+0x587/0x700 [ 251.529804] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 251.534646] ? syscall_return_slowpath+0x4e0/0x4e0 [ 251.539635] ? trace_hardirqs_on_caller+0x250/0x250 [ 251.544770] ? prepare_exit_to_usermode+0x300/0x300 [ 251.549835] ? recalc_sigpending_tsk+0x130/0x130 [ 251.554594] ? prepare_exit_to_usermode+0x1a5/0x300 [ 251.560180] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 251.565031] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 251.570262] RIP: 0033:0x411211 [ 251.573527] Code: Bad RIP value. [ 251.576927] RSP: 002b:00007ffee1258f80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 251.584636] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 251.592041] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 251.599369] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 251.606630] R10: 00007ffee1258eb0 R11: 0000000000000293 R12: 0000000000000000 [ 251.613985] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000003 [ 251.621313] [ 251.621313] Showing all locks held in the system: [ 251.628082] 2 locks held by kworker/0:0/5: [ 251.632320] #0: 000000008cfdef9b ((wq_completion)"events"){+.+.}, at: process_one_work+0x9d6/0x1a20 [ 251.641740] #1: 00000000b47a6a1b ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0xa20/0x1a20 [ 251.653717] 2 locks held by kworker/0:1/14: [ 251.658259] #0: 000000008cfdef9b ((wq_completion)"events"){+.+.}, at: process_one_work+0x9d6/0x1a20 [ 251.667679] #1: 00000000c5d74f2c ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0xa20/0x1a20 [ 251.679708] 2 locks held by kworker/1:0/19: [ 251.684095] #0: 000000008cfdef9b ((wq_completion)"events"){+.+.}, at: process_one_work+0x9d6/0x1a20 [ 251.693967] #1: 0000000076e9f146 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0xa20/0x1a20 [ 251.705852] 2 locks held by kworker/1:1/24: [ 251.710214] #0: 000000008cfdef9b ((wq_completion)"events"){+.+.}, at: process_one_work+0x9d6/0x1a20 [ 251.719549] #1: 00000000b9ae2b87 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0xa20/0x1a20 [ 251.731500] 1 lock held by khungtaskd/1023: [ 251.735978] #0: 000000004a6a29d1 (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 [ 251.745193] 2 locks held by kworker/1:2/2726: [ 251.749730] #0: 000000008cfdef9b ((wq_completion)"events"){+.+.}, at: process_one_work+0x9d6/0x1a20 [ 251.759117] #1: 0000000034898476 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0xa20/0x1a20 [ 251.771114] 1 lock held by rsyslogd/6634: [ 251.775251] #0: 000000004b0513fb (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x170/0x1d0 [ 251.784111] 2 locks held by getty/6725: [ 251.788289] #0: 00000000c0d8f150 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.796582] #1: 00000000ad0ce7a1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x2fd/0x1b60 [ 251.805719] 2 locks held by getty/6726: [ 251.809732] #0: 0000000037b33ea8 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.818622] #1: 00000000c38fc073 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x2fd/0x1b60 [ 251.827611] 2 locks held by getty/6727: [ 251.831580] #0: 000000003161cc34 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.839868] #1: 0000000060229d69 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x2fd/0x1b60 [ 251.848886] 2 locks held by getty/6728: [ 251.852846] #0: 00000000801624f7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.861350] #1: 0000000023ad799e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x2fd/0x1b60 [ 251.870634] 2 locks held by getty/6729: [ 251.874640] #0: 00000000f09b7742 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.882967] #1: 0000000046992977 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x2fd/0x1b60 [ 251.891872] 2 locks held by getty/6730: [ 251.895833] #0: 000000006804bd48 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.904167] #1: 00000000722d9258 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x2fd/0x1b60 [ 251.913164] 2 locks held by getty/6731: [ 251.917474] #0: 000000009c88759f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 251.925731] #1: 0000000044498deb (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x2fd/0x1b60 [ 251.934683] 2 locks held by kworker/1:3/7288: [ 251.939242] #0: 000000008cfdef9b ((wq_completion)"events"){+.+.}, at: process_one_work+0x9d6/0x1a20 [ 251.949379] #1: 00000000b2f30e8e ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0xa20/0x1a20 [ 251.961506] 2 locks held by syz-executor0/8444: [ 251.966385] #0: 000000003267ee46 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x230 [ 251.975737] #1: 00000000bbcbb66e (sk_lock-AF_INET6){+.+.}, at: wait_on_pending_writer+0x260/0x550 [ 251.984937] 2 locks held by syz-executor1/8454: [ 251.989638] #0: 00000000dcf89476 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x230 [ 251.999161] #1: 00000000437b2e41 (sk_lock-AF_INET6){+.+.}, at: wait_on_pending_writer+0x260/0x550 [ 252.008364] 2 locks held by syz-executor2/8474: [ 252.013028] #0: 0000000033a1e2b9 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x230 [ 252.022433] #1: 00000000ba0404fc (sk_lock-AF_INET6){+.+.}, at: wait_on_pending_writer+0x260/0x550 [ 252.031696] 2 locks held by syz-executor4/8479: [ 252.036947] #0: 000000004256a71d (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x230 [ 252.047261] #1: 00000000a151b706 (sk_lock-AF_INET6){+.+.}, at: wait_on_pending_writer+0x260/0x550 [ 252.056377] 2 locks held by syz-executor5/8482: [ 252.061104] #0: 00000000765001e9 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x230 [ 252.070723] #1: 00000000cdf0379e (sk_lock-AF_INET6){+.+.}, at: wait_on_pending_writer+0x260/0x550 [ 252.080851] 2 locks held by syz-executor3/8493: [ 252.085656] #0: 00000000121ceb45 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x230 [ 252.095208] #1: 00000000e902cda0 (sk_lock-AF_INET6){+.+.}, at: wait_on_pending_writer+0x260/0x550 [ 252.104396] [ 252.106013] ============================================= [ 252.106013] [ 252.113119] NMI backtrace for cpu 0 [ 252.116968] CPU: 0 PID: 1023 Comm: khungtaskd Not tainted 4.19.0-rc4-syzkaller #0 [ 252.124581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 252.134155] Call Trace: [ 252.136817] dump_stack+0x16e/0x22a [ 252.140440] ? dump_stack_print_info.cold.2+0x48/0x48 [ 252.145652] ? __rcu_read_unlock+0x2e5/0x2f0 [ 252.150058] nmi_cpu_backtrace.cold.3+0x3e/0x76 [ 252.154761] ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f [ 252.159944] nmi_trigger_cpumask_backtrace+0xf5/0x119 [ 252.165148] arch_trigger_cpumask_backtrace+0x14/0x20 [ 252.170584] watchdog+0x749/0xc80 [ 252.174083] ? reset_hung_task_detector+0xd0/0xd0 [ 252.178928] ? __kthread_parkme+0xb9/0x190 [ 252.183161] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 252.188295] ? __kthread_parkme+0xb9/0x190 [ 252.192522] ? lockdep_hardirqs_on+0x421/0x5c0 [ 252.197093] ? trace_hardirqs_on+0x77/0x280 [ 252.201437] ? do_raw_spin_unlock+0x203/0x2f0 [ 252.205927] ? kasan_check_write+0x14/0x20 [ 252.210154] ? do_raw_spin_lock+0xc1/0x200 [ 252.214435] ? __kthread_parkme+0x47/0x190 [ 252.218792] ? __kthread_parkme+0xb9/0x190 [ 252.223028] ? _raw_spin_unlock_irqrestore+0xbb/0xd0 [ 252.228126] kthread+0x327/0x3f0 [ 252.231492] ? reset_hung_task_detector+0xd0/0xd0 [ 252.236355] ? kthread_bind+0x30/0x30 [ 252.240147] ret_from_fork+0x3a/0x50 [ 252.244029] Sending NMI from CPU 0 to CPUs 1: [ 252.248793] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x6/0x10 [ 252.250319] Kernel panic - not syncing: hung_task: blocked tasks [ 252.262878] CPU: 0 PID: 1023 Comm: khungtaskd Not tainted 4.19.0-rc4-syzkaller #0 [ 252.270846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 252.280290] Call Trace: [ 252.283082] dump_stack+0x16e/0x22a [ 252.286821] ? dump_stack_print_info.cold.2+0x48/0x48 [ 252.292034] ? vprintk_default+0x1a/0x20 [ 252.296286] ? preempt_schedule+0x4d/0x60 [ 252.300604] panic+0x1c6/0x37d [ 252.303787] ? add_taint.cold.5+0x11/0x11 [ 252.307931] watchdog+0x75a/0xc80 [ 252.311493] ? reset_hung_task_detector+0xd0/0xd0 [ 252.316506] ? __kthread_parkme+0xb9/0x190 [ 252.320836] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 252.326074] ? __kthread_parkme+0xb9/0x190 [ 252.330466] ? lockdep_hardirqs_on+0x421/0x5c0 [ 252.335043] ? trace_hardirqs_on+0x77/0x280 [ 252.339373] ? do_raw_spin_unlock+0x203/0x2f0 [ 252.343863] ? kasan_check_write+0x14/0x20 [ 252.348092] ? do_raw_spin_lock+0xc1/0x200 [ 252.352317] ? __kthread_parkme+0x47/0x190 [ 252.356545] ? __kthread_parkme+0xb9/0x190 [ 252.361212] ? _raw_spin_unlock_irqrestore+0xbb/0xd0 [ 252.366465] kthread+0x327/0x3f0 [ 252.369890] ? reset_hung_task_detector+0xd0/0xd0 [ 252.374810] ? kthread_bind+0x30/0x30 [ 252.378606] ret_from_fork+0x3a/0x50 [ 252.385971] Kernel Offset: disabled [ 252.389849] Rebooting in 86400 seconds..