Warning: Permanently added '10.128.0.66' (ECDSA) to the list of known hosts.
2021/12/20 21:22:00 fuzzer started
2021/12/20 21:22:00 connecting to host at 10.128.0.169:40473
2021/12/20 21:22:00 checking machine...
2021/12/20 21:22:00 checking revisions...
2021/12/20 21:22:00 testing simple program...
syzkaller login: [   50.585764][ T3604] cgroup: Unknown subsys name 'net'
[   50.705172][ T3604] cgroup: Unknown subsys name 'rlimit'
[   52.025197][ T3606] chnl_net:caif_netlink_parms(): no params data found
[   52.070145][ T3606] bridge0: port 1(bridge_slave_0) entered blocking state
[   52.077735][ T3606] bridge0: port 1(bridge_slave_0) entered disabled state
[   52.085753][ T3606] device bridge_slave_0 entered promiscuous mode
[   52.094809][ T3606] bridge0: port 2(bridge_slave_1) entered blocking state
[   52.102035][ T3606] bridge0: port 2(bridge_slave_1) entered disabled state
[   52.109956][ T3606] device bridge_slave_1 entered promiscuous mode
[   52.130117][ T3606] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   52.140955][ T3606] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   52.164779][ T3606] team0: Port device team_slave_0 added
[   52.171957][ T3606] team0: Port device team_slave_1 added
[   52.189355][ T3606] batman_adv: batadv0: Adding interface: batadv_slave_0
[   52.196459][ T3606] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[   52.222483][ T3606] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   52.234949][ T3606] batman_adv: batadv0: Adding interface: batadv_slave_1
[   52.242102][ T3606] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[   52.269199][ T3606] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   52.295394][ T3606] device hsr_slave_0 entered promiscuous mode
[   52.302166][ T3606] device hsr_slave_1 entered promiscuous mode
[   52.383287][ T3606] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   52.393903][ T3606] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   52.403133][ T3606] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   52.412068][ T3606] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   52.432674][ T3606] bridge0: port 2(bridge_slave_1) entered blocking state
[   52.439853][ T3606] bridge0: port 2(bridge_slave_1) entered forwarding state
[   52.447456][ T3606] bridge0: port 1(bridge_slave_0) entered blocking state
[   52.454560][ T3606] bridge0: port 1(bridge_slave_0) entered forwarding state
[   52.504027][ T3606] 8021q: adding VLAN 0 to HW filter on device bond0
[   52.516159][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   52.526079][ T3268] bridge0: port 1(bridge_slave_0) entered disabled state
[   52.535043][ T3268] bridge0: port 2(bridge_slave_1) entered disabled state
[   52.543502][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   52.556461][ T3606] 8021q: adding VLAN 0 to HW filter on device team0
[   52.567765][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[   52.576697][ T3616] bridge0: port 1(bridge_slave_0) entered blocking state
[   52.583824][ T3616] bridge0: port 1(bridge_slave_0) entered forwarding state
[   52.594984][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   52.604360][ T3268] bridge0: port 2(bridge_slave_1) entered blocking state
[   52.611477][ T3268] bridge0: port 2(bridge_slave_1) entered forwarding state
[   52.630888][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   52.639501][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   52.651685][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   52.668428][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   52.676581][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   52.686402][ T3606] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   52.703894][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   52.711699][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   52.724487][ T3606] 8021q: adding VLAN 0 to HW filter on device batadv0
[   52.742631][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   52.760784][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   52.770117][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   52.778578][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   52.789136][ T3606] device veth0_vlan entered promiscuous mode
[   52.803168][ T3606] device veth1_vlan entered promiscuous mode
[   52.823866][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   52.832077][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   52.840501][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   52.851029][ T3606] device veth0_macvtap entered promiscuous mode
[   52.861226][ T3606] device veth1_macvtap entered promiscuous mode
[   52.879740][ T3606] batman_adv: batadv0: Interface activated: batadv_slave_0
[   52.887494][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   52.896729][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   52.909935][ T3606] batman_adv: batadv0: Interface activated: batadv_slave_1
[   52.920199][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   52.930387][ T3606] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   52.939790][ T3606] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   52.948974][ T3606] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   52.958717][ T3606] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   53.022027][   T10] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   53.039494][   T10] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   53.052731][ T3268] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   53.062660][    T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   53.070786][    T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   53.079973][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
2021/12/20 21:22:03 building call list...
[   53.333060][   T10] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
executing program
[   55.257353][ T3602] can: request_module (can-proto-0) failed.
[   55.279950][ T3602] can: request_module (can-proto-0) failed.
[   55.300887][ T3602] can: request_module (can-proto-0) failed.
[   55.500278][ T3602] ------------[ cut here ]------------
[   55.506008][ T3602] refcount_t: decrement hit 0; leaking memory.
[   55.513288][ T3602] WARNING: CPU: 1 PID: 3602 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0
[   55.523012][ T3602] Modules linked in:
[   55.526944][ T3602] CPU: 0 PID: 3602 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   55.536112][ T3602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.546615][ T3602] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   55.552994][ T3602] Code: 1d d1 db a0 09 31 ff 89 de e8 5d 6a 9b fd 84 db 75 e0 e8 74 66 9b fd 48 c7 c7 e0 0a 05 8a c6 05 b1 db a0 09 01 e8 cc 4b 27 05 <0f> 0b eb c4 e8 58 66 9b fd 0f b6 1d a0 db a0 09 31 ff 89 de e8 28
[   55.573444][ T3602] RSP: 0018:ffffc90001fb7ab0 EFLAGS: 00010286
[   55.579666][ T3602] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   55.587836][ T3602] RDX: ffff88801a7dd700 RSI: ffffffff815f1e28 RDI: fffff520003f6f48
[   55.595828][ T3602] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   55.604334][ T3602] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003f6f5b
[   55.612624][ T3602] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001fb7d10
[   55.620831][ T3602] FS:  000000c0001e4490(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   55.630246][ T3602] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.636944][ T3602] CR2: 0000000000efe470 CR3: 000000001cf2c000 CR4: 00000000003506f0
[   55.645378][ T3602] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   55.653767][ T3602] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   55.662329][ T3602] Call Trace:
[   55.665601][ T3602]  <TASK>
[   55.668765][ T3602]  ref_tracker_free+0x4fe/0x610
[   55.673615][ T3602]  ? ref_tracker_dir_exit+0x330/0x330
[   55.679368][ T3602]  ? bpf_sk_storage_free+0x333/0x3e0
[   55.684650][ T3602]  ? lock_downgrade+0x6e0/0x6e0
[   55.689942][ T3602]  ? kfree+0x1e1/0x560
[   55.694139][ T3602]  __sk_destruct+0x4a6/0x920
[   55.699107][ T3602]  sk_destruct+0xbd/0xe0
[   55.703518][ T3602]  __sk_free+0xef/0x3d0
[   55.707777][ T3602]  sk_free+0x78/0xa0
[   55.711830][ T3602]  __mptcp_close_ssk+0x435/0x590
[   55.716918][ T3602]  __mptcp_destroy_sock+0x35f/0x830
[   55.722965][ T3602]  ? __mptcp_close_ssk+0x590/0x590
[   55.728334][ T3602]  ? __local_bh_enable_ip+0xa0/0x120
[   55.733664][ T3602]  mptcp_close+0x5f8/0x7f0
[   55.738363][ T3602]  inet_release+0x12e/0x280
[   55.742887][ T3602]  inet6_release+0x4c/0x70
[   55.747301][ T3602]  __sock_release+0xcd/0x280
[   55.752093][ T3602]  sock_close+0x18/0x20
[   55.756387][ T3602]  __fput+0x286/0x9f0
[   55.760458][ T3602]  ? __sock_release+0x280/0x280
[   55.765319][ T3602]  task_work_run+0xdd/0x1a0
[   55.770377][ T3602]  exit_to_user_mode_prepare+0x27e/0x290
[   55.776031][ T3602]  syscall_exit_to_user_mode+0x19/0x60
[   55.782531][ T3602]  do_syscall_64+0x42/0xb0
[   55.786951][ T3602]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   55.793199][ T3602] RIP: 0033:0x4b12db
[   55.797114][ T3602] Code: fb ff eb bd e8 46 96 fb ff e9 61 ff ff ff cc e8 fb 61 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[   55.817251][ T3602] RSP: 002b:000000c0001df4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   55.826360][ T3602] RAX: 0000000000000000 RBX: 000000c00001c000 RCX: 00000000004b12db
[   55.834619][ T3602] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   55.843165][ T3602] RBP: 000000c0001df530 R08: 0000000000f0e001 R09: 00007fff85d5c080
[   55.851382][ T3602] R10: 00007fff85d5c090 R11: 0000000000000206 R12: 000000000000000d
[   55.861124][ T3602] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c000012500
[   55.871390][ T3602]  </TASK>
[   55.874487][ T3602] Kernel panic - not syncing: panic_on_warn set ...
[   55.881338][ T3602] CPU: 1 PID: 3602 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   55.889735][ T3602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.899777][ T3602] Call Trace:
[   55.903063][ T3602]  <TASK>
[   55.905996][ T3602]  dump_stack_lvl+0xcd/0x134
[   55.910587][ T3602]  panic+0x2b0/0x6dd
[   55.914488][ T3602]  ? __warn_printk+0xf3/0xf3
[   55.919163][ T3602]  ? __warn.cold+0x1a/0x44
[   55.923576][ T3602]  ? refcount_warn_saturate+0xbf/0x1e0
[   55.929164][ T3602]  __warn.cold+0x35/0x44
[   55.933489][ T3602]  ? wake_up_klogd.part.0+0x8e/0xd0
[   55.938774][ T3602]  ? refcount_warn_saturate+0xbf/0x1e0
[   55.944243][ T3602]  report_bug+0x1bd/0x210
[   55.948776][ T3602]  handle_bug+0x3c/0x60
[   55.952939][ T3602]  exc_invalid_op+0x14/0x40
[   55.957617][ T3602]  asm_exc_invalid_op+0x12/0x20
[   55.962840][ T3602] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   55.968900][ T3602] Code: 1d d1 db a0 09 31 ff 89 de e8 5d 6a 9b fd 84 db 75 e0 e8 74 66 9b fd 48 c7 c7 e0 0a 05 8a c6 05 b1 db a0 09 01 e8 cc 4b 27 05 <0f> 0b eb c4 e8 58 66 9b fd 0f b6 1d a0 db a0 09 31 ff 89 de e8 28
[   55.989234][ T3602] RSP: 0018:ffffc90001fb7ab0 EFLAGS: 00010286
[   55.995390][ T3602] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   56.003354][ T3602] RDX: ffff88801a7dd700 RSI: ffffffff815f1e28 RDI: fffff520003f6f48
[   56.011320][ T3602] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   56.019366][ T3602] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003f6f5b
[   56.027321][ T3602] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001fb7d10
[   56.035287][ T3602]  ? wake_up_klogd.part.0+0x8e/0xd0
[   56.040477][ T3602]  ? vprintk+0x88/0x90
[   56.044541][ T3602]  ref_tracker_free+0x4fe/0x610
[   56.049386][ T3602]  ? ref_tracker_dir_exit+0x330/0x330
[   56.055115][ T3602]  ? bpf_sk_storage_free+0x333/0x3e0
[   56.060392][ T3602]  ? lock_downgrade+0x6e0/0x6e0
[   56.065232][ T3602]  ? kfree+0x1e1/0x560
[   56.069304][ T3602]  __sk_destruct+0x4a6/0x920
[   56.073975][ T3602]  sk_destruct+0xbd/0xe0
[   56.078217][ T3602]  __sk_free+0xef/0x3d0
[   56.082364][ T3602]  sk_free+0x78/0xa0
[   56.086251][ T3602]  __mptcp_close_ssk+0x435/0x590
[   56.091266][ T3602]  __mptcp_destroy_sock+0x35f/0x830
[   56.096469][ T3602]  ? __mptcp_close_ssk+0x590/0x590
[   56.101583][ T3602]  ? __local_bh_enable_ip+0xa0/0x120
[   56.106871][ T3602]  mptcp_close+0x5f8/0x7f0
[   56.111403][ T3602]  inet_release+0x12e/0x280
[   56.115914][ T3602]  inet6_release+0x4c/0x70
[   56.120327][ T3602]  __sock_release+0xcd/0x280
[   56.125160][ T3602]  sock_close+0x18/0x20
[   56.129314][ T3602]  __fput+0x286/0x9f0
[   56.133298][ T3602]  ? __sock_release+0x280/0x280
[   56.138140][ T3602]  task_work_run+0xdd/0x1a0
[   56.142733][ T3602]  exit_to_user_mode_prepare+0x27e/0x290
[   56.148375][ T3602]  syscall_exit_to_user_mode+0x19/0x60
[   56.153844][ T3602]  do_syscall_64+0x42/0xb0
[   56.158335][ T3602]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   56.164220][ T3602] RIP: 0033:0x4b12db
[   56.168119][ T3602] Code: fb ff eb bd e8 46 96 fb ff e9 61 ff ff ff cc e8 fb 61 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[   56.187850][ T3602] RSP: 002b:000000c0001df4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   56.196258][ T3602] RAX: 0000000000000000 RBX: 000000c00001c000 RCX: 00000000004b12db
[   56.204326][ T3602] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   56.213154][ T3602] RBP: 000000c0001df530 R08: 0000000000f0e001 R09: 00007fff85d5c080
[   56.221122][ T3602] R10: 00007fff85d5c090 R11: 0000000000000206 R12: 000000000000000d
[   56.229102][ T3602] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c000012500
[   56.237070][ T3602]  </TASK>
[   56.240521][ T3602] Kernel Offset: disabled
[   56.245100][ T3602] Rebooting in 86400 seconds..