Warning: Permanently added '10.128.0.98' (ECDSA) to the list of known hosts. 2020/02/12 00:20:25 parsed 1 programs 2020/02/12 00:20:26 executed programs: 0 [ 86.735500] IPVS: ftp: loaded support on port[0] = 21 [ 86.781622] IPVS: ftp: loaded support on port[0] = 21 [ 86.801471] IPVS: ftp: loaded support on port[0] = 21 [ 86.809144] IPVS: ftp: loaded support on port[0] = 21 [ 86.826361] IPVS: ftp: loaded support on port[0] = 21 [ 86.947930] IPVS: ftp: loaded support on port[0] = 21 [ 87.679772] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.686806] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.708561] device bridge_slave_0 entered promiscuous mode [ 87.754008] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.762270] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.769617] device bridge_slave_1 entered promiscuous mode [ 87.778335] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.786683] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.794078] device bridge_slave_0 entered promiscuous mode [ 87.824913] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.840847] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.847727] device bridge_slave_1 entered promiscuous mode [ 87.854481] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.861451] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.868439] device bridge_slave_0 entered promiscuous mode [ 87.918900] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.940335] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.947403] device bridge_slave_1 entered promiscuous mode [ 87.962449] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.968838] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.976723] device bridge_slave_0 entered promiscuous mode [ 87.992926] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.001510] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.008623] device bridge_slave_0 entered promiscuous mode [ 88.022447] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.028944] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.042322] device bridge_slave_0 entered promiscuous mode [ 88.052758] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.062732] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.070573] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.077740] device bridge_slave_1 entered promiscuous mode [ 88.091645] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.098142] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.106066] device bridge_slave_1 entered promiscuous mode [ 88.123440] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.135890] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.145298] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.155388] device bridge_slave_1 entered promiscuous mode [ 88.245739] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.270377] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.315230] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.331919] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.342749] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.365649] ip (7960) used greatest stack depth: 23232 bytes left [ 88.410814] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.424959] team0: Port device team_slave_0 added [ 88.435539] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.467975] team0: Port device team_slave_1 added [ 88.478805] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 88.503354] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.522649] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.536877] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 88.554074] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 88.580053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 88.591736] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.626241] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 88.641265] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 88.648856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 88.666396] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.692608] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 88.705886] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 88.723647] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.732875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 88.752304] team0: Port device team_slave_0 added [ 88.765547] team0: Port device team_slave_0 added [ 88.781584] team0: Port device team_slave_0 added [ 88.791688] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 88.808234] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.816551] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 88.839806] team0: Port device team_slave_1 added [ 88.854198] team0: Port device team_slave_1 added [ 88.870718] team0: Port device team_slave_1 added [ 88.884326] team0: Port device team_slave_0 added [ 88.922081] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.933215] team0: Port device team_slave_0 added [ 88.945638] team0: Port device team_slave_1 added [ 88.960477] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.987866] team0: Port device team_slave_1 added [ 89.000755] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 89.008612] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.036208] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.044809] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 89.052961] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.061763] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 89.080480] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.089982] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 89.097773] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.115164] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 89.130226] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.138020] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.151985] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 89.176173] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.213155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 89.221629] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.229468] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 89.238090] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.245906] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 89.253857] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.261368] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.269034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 89.287800] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.301453] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 89.331034] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.339029] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 89.377204] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.386946] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 89.614781] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.621299] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.628353] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.634766] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.722989] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.729435] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.736064] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.742492] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.902426] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.908826] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.915533] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.921931] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.936403] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.942816] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.949597] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.955958] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.976132] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.982574] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.989313] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.996132] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.024249] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.030677] bridge0: port 2(bridge_slave_1) entered forwarding state [ 90.037290] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.043687] bridge0: port 1(bridge_slave_0) entered forwarding state [ 90.539450] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 90.552853] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 90.566699] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 90.575076] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 90.582356] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 90.590481] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 91.853866] 8021q: adding VLAN 0 to HW filter on device bond0 [ 91.872906] 8021q: adding VLAN 0 to HW filter on device bond0 [ 91.976079] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.020284] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.032179] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.159624] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 92.166551] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.199450] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.238265] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 92.248176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.355288] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 92.363763] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.377285] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.388066] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 92.396663] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.457809] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.486884] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 92.497161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.570061] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.580829] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.615418] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 92.624602] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.698102] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.819144] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.591143] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 93.624174] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 93.799581] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 93.972302] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 94.058332] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 94.072987] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 2020/02/12 00:20:34 executed programs: 6 [ 94.441813] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 256.219588] INFO: task syz-executor0:9156 blocked for more than 143 seconds. [ 256.227459] Not tainted 5.5.0-syzkaller #0 [ 256.232381] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 256.240449] syz-executor0 D28048 9156 7579 0x00000004 [ 256.246112] Call Trace: [ 256.248737] __schedule+0x856/0x1910 [ 256.252572] ? __sched_text_start+0x8/0x8 [ 256.256834] ? __lock_acquire+0x2cd5/0x4ef0 [ 256.261697] schedule+0xc3/0x2b0 [ 256.265101] schedule_timeout+0x5c4/0xad0 [ 256.269358] ? __kasan_check_read+0x11/0x20 [ 256.273727] ? mark_lock+0xc5/0x11d0 [ 256.278200] ? usleep_range+0x130/0x130 [ 256.282227] ? mark_held_locks+0xb8/0x130 [ 256.286385] ? do_raw_spin_lock+0x132/0x2e0 [ 256.290819] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.295316] ? wait_for_completion+0x283/0x460 [ 256.300008] ? lockdep_hardirqs_on+0x42d/0x5d0 [ 256.304607] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.309122] ? trace_hardirqs_on+0x28/0x1b0 [ 256.313496] wait_for_completion+0x28b/0x460 [ 256.318013] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 256.323977] ? wake_up_q+0x120/0x120 [ 256.327829] ? __kasan_check_read+0x11/0x20 [ 256.332214] __flush_work+0x3ee/0x8b0 [ 256.336019] ? max_active_store+0x100/0x100 [ 256.340389] ? init_pwq+0x330/0x330 [ 256.344040] ? __cancel_work_timer+0x159/0x440 [ 256.348606] ? trace_hardirqs_on+0x28/0x1b0 [ 256.352976] __cancel_work_timer+0x308/0x440 [ 256.357385] ? mod_delayed_work_on+0x1a0/0x1a0 [ 256.362084] ? mark_held_locks+0x130/0x130 [ 256.366434] cancel_delayed_work_sync+0xe/0x10 [ 256.371151] tls_sw_cancel_work_tx+0x63/0x70 [ 256.375976] tls_sk_proto_close+0x400/0x9a0 [ 256.380424] ? __sock_release+0x7d/0x280 [ 256.384512] ? wait_on_pending_writer+0x3b0/0x3b0 [ 256.389924] ? __kasan_check_write+0x14/0x20 [ 256.394362] ? down_write+0xdc/0x150 [ 256.398304] inet_release+0xc6/0x1c0 [ 256.402143] inet6_release+0x46/0x60 [ 256.405864] __sock_release+0xc7/0x280 [ 256.409808] sock_close+0x13/0x20 [ 256.413262] __fput+0x25d/0x780 [ 256.416525] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.421097] ____fput+0x9/0x10 [ 256.424319] task_work_run+0x10e/0x190 [ 256.428261] exit_to_usermode_loop+0x1be/0x210 [ 256.432899] do_syscall_64+0x50b/0x600 [ 256.436910] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 256.442196] RIP: 0033:0x411211 [ 256.445386] Code: a5 fe ff ff 48 8d 3c 18 48 8d 7f f8 48 8b 07 48 85 c0 74 0d 90 48 8d 78 08 45 31 c0 e9 4b fe ff ff 48 89 d0 e9 56 ff ff ff 48 <89> 44 24 20 48 8b 4c 24 48 48 89 0c 24 48 89 54 24 08 48 89 44 24 [ 256.464476] RSP: 002b:00007ffcaf07c9c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 256.472435] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 256.480290] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 256.487558] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 256.494872] R10: 00007ffcaf07c8f0 R11: 0000000000000293 R12: 0000000000000000 [ 256.502186] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 256.509567] INFO: task syz-executor1:9200 blocked for more than 143 seconds. [ 256.516758] Not tainted 5.5.0-syzkaller #0 [ 256.522110] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 256.530145] syz-executor1 D28048 9200 7583 0x00000004 [ 256.535778] Call Trace: [ 256.538359] __schedule+0x856/0x1910 [ 256.542176] ? __sched_text_start+0x8/0x8 [ 256.546546] ? __lock_acquire+0x100f/0x4ef0 [ 256.550940] schedule+0xc3/0x2b0 [ 256.554315] schedule_timeout+0x5c4/0xad0 [ 256.558469] ? __kasan_check_read+0x11/0x20 [ 256.562854] ? mark_lock+0xc5/0x11d0 [ 256.566581] ? usleep_range+0x130/0x130 [ 256.570594] ? mark_held_locks+0xb8/0x130 [ 256.574736] ? do_raw_spin_lock+0x132/0x2e0 [ 256.579040] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.583611] ? wait_for_completion+0x283/0x460 [ 256.588238] ? lockdep_hardirqs_on+0x42d/0x5d0 [ 256.592870] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.597361] ? trace_hardirqs_on+0x28/0x1b0 [ 256.601741] wait_for_completion+0x28b/0x460 [ 256.606172] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 256.612065] ? wake_up_q+0x120/0x120 [ 256.615785] ? __kasan_check_read+0x11/0x20 [ 256.620182] __flush_work+0x3ee/0x8b0 [ 256.624009] ? max_active_store+0x100/0x100 [ 256.628360] ? init_pwq+0x330/0x330 [ 256.632042] ? __cancel_work_timer+0x159/0x440 [ 256.636659] ? trace_hardirqs_on+0x28/0x1b0 [ 256.641047] __cancel_work_timer+0x308/0x440 [ 256.645462] ? mod_delayed_work_on+0x1a0/0x1a0 [ 256.650620] ? mark_held_locks+0x130/0x130 [ 256.654852] cancel_delayed_work_sync+0xe/0x10 [ 256.659477] tls_sw_cancel_work_tx+0x63/0x70 [ 256.663883] tls_sk_proto_close+0x400/0x9a0 [ 256.668200] ? __sock_release+0x7d/0x280 [ 256.672309] ? wait_on_pending_writer+0x3b0/0x3b0 [ 256.677149] ? __kasan_check_write+0x14/0x20 [ 256.681606] ? down_write+0xdc/0x150 [ 256.685333] inet_release+0xc6/0x1c0 [ 256.689032] inet6_release+0x46/0x60 [ 256.692783] __sock_release+0xc7/0x280 [ 256.696673] sock_close+0x13/0x20 [ 256.700169] __fput+0x25d/0x780 [ 256.703491] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.708234] ____fput+0x9/0x10 [ 256.711461] task_work_run+0x10e/0x190 [ 256.715344] exit_to_usermode_loop+0x1be/0x210 [ 256.719976] do_syscall_64+0x50b/0x600 [ 256.723943] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 256.729112] RIP: 0033:0x411211 [ 256.732329] Code: a5 fe ff ff 48 8d 3c 18 48 8d 7f f8 48 8b 07 48 85 c0 74 0d 90 48 8d 78 08 45 31 c0 e9 4b fe ff ff 48 89 d0 e9 56 ff ff ff 48 <89> 44 24 20 48 8b 4c 24 48 48 89 0c 24 48 89 54 24 08 48 89 44 24 [ 256.751263] RSP: 002b:00007fff0ca2df00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 256.758958] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 256.766247] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 256.773540] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 256.782490] R10: 00007fff0ca2de30 R11: 0000000000000293 R12: 0000000000000000 [ 256.789819] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 256.797150] INFO: task syz-executor4:9222 blocked for more than 143 seconds. [ 256.804364] Not tainted 5.5.0-syzkaller #0 [ 256.809103] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 256.817097] syz-executor4 D28048 9222 7593 0x00000004 [ 256.822776] Call Trace: [ 256.825358] __schedule+0x856/0x1910 [ 256.829066] ? __sched_text_start+0x8/0x8 [ 256.833307] ? __lock_acquire+0x100f/0x4ef0 [ 256.837747] schedule+0xc3/0x2b0 [ 256.841156] schedule_timeout+0x5c4/0xad0 [ 256.845315] ? __kasan_check_read+0x11/0x20 [ 256.849682] ? mark_lock+0xc5/0x11d0 [ 256.853414] ? usleep_range+0x130/0x130 [ 256.857401] ? mark_held_locks+0xb8/0x130 [ 256.861576] ? do_raw_spin_lock+0x132/0x2e0 [ 256.865903] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.870437] ? wait_for_completion+0x283/0x460 [ 256.875025] ? lockdep_hardirqs_on+0x42d/0x5d0 [ 256.879630] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.884125] ? trace_hardirqs_on+0x28/0x1b0 [ 256.888441] wait_for_completion+0x28b/0x460 [ 256.892899] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 256.898703] ? wake_up_q+0x120/0x120 [ 256.902457] ? __kasan_check_read+0x11/0x20 [ 256.906775] __flush_work+0x3ee/0x8b0 [ 256.911146] ? max_active_store+0x100/0x100 [ 256.915467] ? init_pwq+0x330/0x330 [ 256.919103] ? __cancel_work_timer+0x159/0x440 [ 256.923749] ? trace_hardirqs_on+0x28/0x1b0 [ 256.928063] __cancel_work_timer+0x308/0x440 [ 256.932522] ? mod_delayed_work_on+0x1a0/0x1a0 [ 256.937117] ? mark_held_locks+0x130/0x130 [ 256.941386] cancel_delayed_work_sync+0xe/0x10 [ 256.945959] tls_sw_cancel_work_tx+0x63/0x70 [ 256.950417] tls_sk_proto_close+0x400/0x9a0 [ 256.954730] ? __sock_release+0x7d/0x280 [ 256.958779] ? wait_on_pending_writer+0x3b0/0x3b0 [ 256.963649] ? __kasan_check_write+0x14/0x20 [ 256.968059] ? down_write+0xdc/0x150 [ 256.971814] inet_release+0xc6/0x1c0 [ 256.975523] inet6_release+0x46/0x60 [ 256.979273] __sock_release+0xc7/0x280 [ 256.983164] sock_close+0x13/0x20 [ 256.986609] __fput+0x25d/0x780 [ 256.989918] ? _raw_spin_unlock_irq+0x22/0x80 [ 256.994428] ____fput+0x9/0x10 [ 256.997598] task_work_run+0x10e/0x190 [ 257.001524] exit_to_usermode_loop+0x1be/0x210 [ 257.006098] do_syscall_64+0x50b/0x600 [ 257.010026] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 257.015253] RIP: 0033:0x411211 [ 257.018430] Code: a5 fe ff ff 48 8d 3c 18 48 8d 7f f8 48 8b 07 48 85 c0 74 0d 90 48 8d 78 08 45 31 c0 e9 4b fe ff ff 48 89 d0 e9 56 ff ff ff 48 <89> 44 24 20 48 8b 4c 24 48 48 89 0c 24 48 89 54 24 08 48 89 44 24 [ 257.037506] RSP: 002b:00007fff126d4fc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 257.045797] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 257.053120] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 257.060405] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 257.067668] R10: 00007fff126d4ef0 R11: 0000000000000293 R12: 0000000000000000 [ 257.074978] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000004 [ 257.082284] INFO: task syz-executor5:9227 blocked for more than 144 seconds. [ 257.089498] Not tainted 5.5.0-syzkaller #0 [ 257.094252] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 257.102250] syz-executor5 D28048 9227 7587 0x00000004 [ 257.107887] Call Trace: [ 257.110520] __schedule+0x856/0x1910 [ 257.114232] ? __sched_text_start+0x8/0x8 [ 257.118376] ? __lock_acquire+0x100f/0x4ef0 [ 257.122747] schedule+0xc3/0x2b0 [ 257.126117] schedule_timeout+0x5c4/0xad0 [ 257.130349] ? __kasan_check_read+0x11/0x20 [ 257.134686] ? mark_lock+0xc5/0x11d0 [ 257.138397] ? usleep_range+0x130/0x130 [ 257.142437] ? mark_held_locks+0xb8/0x130 [ 257.146615] ? do_raw_spin_lock+0x132/0x2e0 [ 257.150989] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.155485] ? wait_for_completion+0x283/0x460 [ 257.160155] ? lockdep_hardirqs_on+0x42d/0x5d0 [ 257.164767] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.170012] ? trace_hardirqs_on+0x28/0x1b0 [ 257.174331] wait_for_completion+0x28b/0x460 [ 257.179203] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 257.185009] ? wake_up_q+0x120/0x120 [ 257.188706] ? __kasan_check_read+0x11/0x20 [ 257.193088] __flush_work+0x3ee/0x8b0 [ 257.196886] ? max_active_store+0x100/0x100 [ 257.201255] ? init_pwq+0x330/0x330 [ 257.204895] ? __cancel_work_timer+0x159/0x440 [ 257.209586] ? trace_hardirqs_on+0x28/0x1b0 [ 257.214023] __cancel_work_timer+0x308/0x440 [ 257.218439] ? mod_delayed_work_on+0x1a0/0x1a0 [ 257.223093] ? mark_held_locks+0x130/0x130 [ 257.227330] cancel_delayed_work_sync+0xe/0x10 [ 257.231970] tls_sw_cancel_work_tx+0x63/0x70 [ 257.236375] tls_sk_proto_close+0x400/0x9a0 [ 257.240734] ? __sock_release+0x7d/0x280 [ 257.244793] ? wait_on_pending_writer+0x3b0/0x3b0 [ 257.249681] ? __kasan_check_write+0x14/0x20 [ 257.254097] ? down_write+0xdc/0x150 [ 257.257814] inet_release+0xc6/0x1c0 [ 257.261632] inet6_release+0x46/0x60 [ 257.265364] __sock_release+0xc7/0x280 [ 257.269298] sock_close+0x13/0x20 [ 257.272747] __fput+0x25d/0x780 [ 257.276004] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.280541] ____fput+0x9/0x10 [ 257.283724] task_work_run+0x10e/0x190 [ 257.287600] exit_to_usermode_loop+0x1be/0x210 [ 257.292235] do_syscall_64+0x50b/0x600 [ 257.296120] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 257.301849] RIP: 0033:0x411211 [ 257.305033] Code: a5 fe ff ff 48 8d 3c 18 48 8d 7f f8 48 8b 07 48 85 c0 74 0d 90 48 8d 78 08 45 31 c0 e9 4b fe ff ff 48 89 d0 e9 56 ff ff ff 48 <89> 44 24 20 48 8b 4c 24 48 48 89 0c 24 48 89 54 24 08 48 89 44 24 [ 257.323996] RSP: 002b:00007ffcee1c05c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 257.331746] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 257.339015] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 257.346697] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 257.354007] R10: 00007ffcee1c04f0 R11: 0000000000000293 R12: 0000000000000000 [ 257.361299] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000005 [ 257.368568] INFO: task syz-executor2:9229 blocked for more than 144 seconds. [ 257.375812] Not tainted 5.5.0-syzkaller #0 [ 257.380605] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 257.388568] syz-executor2 D28048 9229 7589 0x00000004 [ 257.394230] Call Trace: [ 257.396822] __schedule+0x856/0x1910 [ 257.400709] ? __sched_text_start+0x8/0x8 [ 257.404855] ? __lock_acquire+0x100f/0x4ef0 [ 257.409236] schedule+0xc3/0x2b0 [ 257.412614] schedule_timeout+0x5c4/0xad0 [ 257.416742] ? __kasan_check_read+0x11/0x20 [ 257.421113] ? mark_lock+0xc5/0x11d0 [ 257.424820] ? usleep_range+0x130/0x130 [ 257.428777] ? mark_held_locks+0xb8/0x130 [ 257.433484] ? do_raw_spin_lock+0x132/0x2e0 [ 257.437805] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.442347] ? wait_for_completion+0x283/0x460 [ 257.446920] ? lockdep_hardirqs_on+0x42d/0x5d0 [ 257.451554] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.456041] ? trace_hardirqs_on+0x28/0x1b0 [ 257.460432] wait_for_completion+0x28b/0x460 [ 257.464841] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 257.470713] ? wake_up_q+0x120/0x120 [ 257.474521] ? __kasan_check_read+0x11/0x20 [ 257.479414] __flush_work+0x3ee/0x8b0 [ 257.483233] ? max_active_store+0x100/0x100 [ 257.487539] ? init_pwq+0x330/0x330 [ 257.491217] ? __cancel_work_timer+0x159/0x440 [ 257.495811] ? trace_hardirqs_on+0x28/0x1b0 [ 257.500304] __cancel_work_timer+0x308/0x440 [ 257.504717] ? mod_delayed_work_on+0x1a0/0x1a0 [ 257.510821] ? mark_held_locks+0x130/0x130 [ 257.515062] cancel_delayed_work_sync+0xe/0x10 [ 257.519719] tls_sw_cancel_work_tx+0x63/0x70 [ 257.524123] tls_sk_proto_close+0x400/0x9a0 [ 257.528462] ? __sock_release+0x7d/0x280 [ 257.532626] ? wait_on_pending_writer+0x3b0/0x3b0 [ 257.537656] ? __kasan_check_write+0x14/0x20 [ 257.542112] ? down_write+0xdc/0x150 [ 257.545825] inet_release+0xc6/0x1c0 [ 257.549579] inet6_release+0x46/0x60 [ 257.553284] __sock_release+0xc7/0x280 [ 257.557190] sock_close+0x13/0x20 [ 257.561234] __fput+0x25d/0x780 [ 257.564532] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.569015] ____fput+0x9/0x10 [ 257.572251] task_work_run+0x10e/0x190 [ 257.576610] exit_to_usermode_loop+0x1be/0x210 [ 257.581311] do_syscall_64+0x50b/0x600 [ 257.585202] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 257.590455] RIP: 0033:0x411211 [ 257.593653] Code: a5 fe ff ff 48 8d 3c 18 48 8d 7f f8 48 8b 07 48 85 c0 74 0d 90 48 8d 78 08 45 31 c0 e9 4b fe ff ff 48 89 d0 e9 56 ff ff ff 48 <89> 44 24 20 48 8b 4c 24 48 48 89 0c 24 48 89 54 24 08 48 89 44 24 [ 257.612790] RSP: 002b:00007ffcc3721000 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 257.621066] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 257.628423] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 257.635771] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 257.643079] R10: 00007ffcc3720f30 R11: 0000000000000293 R12: 0000000000000000 [ 257.650442] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000002 [ 257.657758] INFO: task syz-executor3:9238 blocked for more than 144 seconds. [ 257.665008] Not tainted 5.5.0-syzkaller #0 [ 257.669810] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 257.678154] syz-executor3 D28048 9238 7580 0x00000004 [ 257.683837] Call Trace: [ 257.686427] __schedule+0x856/0x1910 [ 257.690777] ? __sched_text_start+0x8/0x8 [ 257.695927] ? __lock_acquire+0x100f/0x4ef0 [ 257.700434] schedule+0xc3/0x2b0 [ 257.703793] schedule_timeout+0x5c4/0xad0 [ 257.707937] ? __kasan_check_read+0x11/0x20 [ 257.712318] ? mark_lock+0xc5/0x11d0 [ 257.716040] ? usleep_range+0x130/0x130 [ 257.720097] ? mark_held_locks+0xb8/0x130 [ 257.724370] ? do_raw_spin_lock+0x132/0x2e0 [ 257.728683] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.733262] ? wait_for_completion+0x283/0x460 [ 257.737997] ? lockdep_hardirqs_on+0x42d/0x5d0 [ 257.742629] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.747128] ? trace_hardirqs_on+0x28/0x1b0 [ 257.751529] wait_for_completion+0x28b/0x460 [ 257.755951] ? wait_for_completion_interruptible+0x4b0/0x4b0 [ 257.761879] ? wake_up_q+0x120/0x120 [ 257.765588] ? __kasan_check_read+0x11/0x20 [ 257.770016] __flush_work+0x3ee/0x8b0 [ 257.773830] ? max_active_store+0x100/0x100 [ 257.778144] ? init_pwq+0x330/0x330 [ 257.781833] ? __cancel_work_timer+0x159/0x440 [ 257.786441] ? trace_hardirqs_on+0x28/0x1b0 [ 257.790832] __cancel_work_timer+0x308/0x440 [ 257.795285] ? mod_delayed_work_on+0x1a0/0x1a0 [ 257.799921] ? mark_held_locks+0x130/0x130 [ 257.804153] cancel_delayed_work_sync+0xe/0x10 [ 257.808742] tls_sw_cancel_work_tx+0x63/0x70 [ 257.813240] tls_sk_proto_close+0x400/0x9a0 [ 257.817560] ? __sock_release+0x7d/0x280 [ 257.822149] ? wait_on_pending_writer+0x3b0/0x3b0 [ 257.826987] ? __kasan_check_write+0x14/0x20 [ 257.831455] ? down_write+0xdc/0x150 [ 257.835183] inet_release+0xc6/0x1c0 [ 257.838884] inet6_release+0x46/0x60 [ 257.842638] __sock_release+0xc7/0x280 [ 257.846607] sock_close+0x13/0x20 [ 257.850120] __fput+0x25d/0x780 [ 257.853399] ? _raw_spin_unlock_irq+0x22/0x80 [ 257.858047] ____fput+0x9/0x10 [ 257.861306] task_work_run+0x10e/0x190 [ 257.865196] exit_to_usermode_loop+0x1be/0x210 [ 257.869839] do_syscall_64+0x50b/0x600 [ 257.873815] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 257.878991] RIP: 0033:0x411211 [ 257.882221] Code: a5 fe ff ff 48 8d 3c 18 48 8d 7f f8 48 8b 07 48 85 c0 74 0d 90 48 8d 78 08 45 31 c0 e9 4b fe ff ff 48 89 d0 e9 56 ff ff ff 48 <89> 44 24 20 48 8b 4c 24 48 48 89 0c 24 48 89 54 24 08 48 89 44 24 [ 257.901186] RSP: 002b:00007ffe50c32da0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 257.908918] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411211 [ 257.916278] RDX: 0000000000000000 RSI: 0000000000740b80 RDI: 0000000000000004 [ 257.923610] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 257.930946] R10: 00007ffe50c32cd0 R11: 0000000000000293 R12: 0000000000000000 [ 257.938244] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000003 [ 257.945695] [ 257.945695] Showing all locks held in the system: [ 257.952568] 1 lock held by khungtaskd/1052: [ 257.956874] #0: ffffffff885a4b40 (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x275 [ 257.965611] 3 locks held by kworker/0:30/2778: [ 257.970220] #0: ffff8881da026d28 ((wq_completion)events){+.+.}, at: process_one_work+0x79e/0x1690 [ 257.979412] #1: ffff8881ce7f7de8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0x7cf/0x1690 [ 257.991259] #2: ffff8881d89998d0 (&ctx->tx_lock){+.+.}, at: tx_work_handler+0xf5/0x150 [ 257.999514] 3 locks held by kworker/1:37/2784: [ 258.004120] #0: ffff8881da026d28 ((wq_completion)events){+.+.}, at: process_one_work+0x79e/0x1690 [ 258.013299] #1: ffff8881ce00fde8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0x7cf/0x1690 [ 258.025158] #2: ffff8881c6bf04d0 (&ctx->tx_lock){+.+.}, at: tx_work_handler+0xf5/0x150 [ 258.033370] 3 locks held by kworker/0:32/2785: [ 258.037946] #0: ffff8881da026d28 ((wq_completion)events){+.+.}, at: process_one_work+0x79e/0x1690 [ 258.047091] #1: ffff8881ce03fde8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0x7cf/0x1690 [ 258.058920] #2: ffff8881c2aad0d0 (&ctx->tx_lock){+.+.}, at: tx_work_handler+0xf5/0x150 [ 258.067130] 3 locks held by kworker/0:33/2787: [ 258.071747] #0: ffff8881da026d28 ((wq_completion)events){+.+.}, at: process_one_work+0x79e/0x1690 [ 258.081610] #1: ffff8881ce047de8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0x7cf/0x1690 [ 258.093496] #2: ffff8881d2f76cd0 (&ctx->tx_lock){+.+.}, at: tx_work_handler+0xf5/0x150 [ 258.101854] 3 locks held by kworker/1:38/2791: [ 258.106424] #0: ffff8881da026d28 ((wq_completion)events){+.+.}, at: process_one_work+0x79e/0x1690 [ 258.115716] #1: ffff8881ce067de8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0x7cf/0x1690 [ 258.127558] #2: ffff8881ba7b90d0 (&ctx->tx_lock){+.+.}, at: tx_work_handler+0xf5/0x150 [ 258.135785] 3 locks held by kworker/0:34/2795: [ 258.140389] #0: ffff8881da026d28 ((wq_completion)events){+.+.}, at: process_one_work+0x79e/0x1690 [ 258.149583] #1: ffff8881ce0c7de8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}, at: process_one_work+0x7cf/0x1690 [ 258.161440] #2: ffff8881b35818d0 (&ctx->tx_lock){+.+.}, at: tx_work_handler+0xf5/0x150 [ 258.169737] 1 lock held by rsyslogd/7377: [ 258.173874] #0: ffff8881b5108de0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa3/0xc0 [ 258.181761] 2 locks held by getty/7468: [ 258.185804] #0: ffff8881d1c8b090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 258.194106] #1: ffffc90004c842e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 [ 258.203077] 2 locks held by getty/7469: [ 258.207160] #0: ffff8881d219b090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 258.216005] #1: ffffc90004cac2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 [ 258.225061] 2 locks held by getty/7470: [ 258.229023] #0: ffff8881d2193090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 258.237345] #1: ffffc90004ca82e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 [ 258.246252] 2 locks held by getty/7471: [ 258.250288] #0: ffff8881d21ab090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 258.258556] #1: ffffc90004cb02e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 [ 258.267474] 2 locks held by getty/7472: [ 258.271456] #0: ffff8881d7efe090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 258.279782] #1: ffffc90004ca42e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 [ 258.288624] 2 locks held by getty/7473: [ 258.292637] #0: ffff8881d2f82090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 258.300950] #1: ffffc90004cb42e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 [ 258.309836] 2 locks held by getty/7474: [ 258.313892] #0: ffff8881c488a090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 [ 258.322244] #1: ffffc90004c7c2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 [ 258.331155] 1 lock held by syz-executor0/9156: [ 258.335722] #0: ffff8881b2616200 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x280 [ 258.345632] 1 lock held by syz-executor1/9200: [ 258.350370] #0: ffff8881b25bb700 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x280 [ 258.359721] 1 lock held by syz-executor4/9222: [ 258.364298] #0: ffff8881befe1700 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x280 [ 258.373646] 1 lock held by syz-executor5/9227: [ 258.378304] #0: ffff8881cb73c280 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x280 [ 258.387733] 1 lock held by syz-executor2/9229: [ 258.392412] #0: ffff8881d2860280 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x280 [ 258.401752] 1 lock held by syz-executor3/9238: [ 258.406317] #0: ffff8881c0666c00 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x7d/0x280 [ 258.415668] [ 258.417293] ============================================= [ 258.417293] [ 258.424422] NMI backtrace for cpu 1 [ 258.428090] CPU: 1 PID: 1052 Comm: khungtaskd Not tainted 5.5.0-syzkaller #0 [ 258.435262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 258.444604] Call Trace: [ 258.447231] dump_stack+0x12d/0x187 [ 258.450843] nmi_cpu_backtrace.cold.7+0x4b/0x84 [ 258.455532] ? lapic_can_unplug_cpu.cold.29+0x3f/0x3f [ 258.460712] nmi_trigger_cpumask_backtrace+0x18b/0x1b7 [ 258.465983] arch_trigger_cpumask_backtrace+0x14/0x20 [ 258.471169] watchdog+0x611/0xc50 [ 258.474616] kthread+0x334/0x3f0 [ 258.478079] ? hungtask_pm_notify+0x40/0x40 [ 258.482387] ? kthread_mod_delayed_work+0x190/0x190 [ 258.487410] ret_from_fork+0x3a/0x50 [ 258.491233] Sending NMI from CPU 1 to CPUs 0: [ 258.496203] NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x12/0x20 [ 258.497644] Kernel panic - not syncing: hung_task: blocked tasks [ 258.509969] CPU: 1 PID: 1052 Comm: khungtaskd Not tainted 5.5.0-syzkaller #0 [ 258.517166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 258.526510] Call Trace: [ 258.529092] dump_stack+0x12d/0x187 [ 258.532729] panic+0x22a/0x4f5 [ 258.536269] ? add_taint.cold.7+0x11/0x11 [ 258.540407] ? ___preempt_schedule+0x16/0x18 [ 258.544805] watchdog+0x622/0xc50 [ 258.548255] kthread+0x334/0x3f0 [ 258.551602] ? hungtask_pm_notify+0x40/0x40 [ 258.555911] ? kthread_mod_delayed_work+0x190/0x190 [ 258.560912] ret_from_fork+0x3a/0x50 [ 258.567000] Kernel Offset: disabled [ 258.570647] Rebooting in 86400 seconds..