forked to background, child pid 3181
no interfaces have a carrier
[   32.099346][ T3182] 8021q: adding VLAN 0 to HW filter on device bond0
[   32.114863][ T3182] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.134' (ECDSA) to the list of known hosts.
2021/12/29 03:46:45 fuzzer started
2021/12/29 03:46:45 connecting to host at 10.128.0.169:36959
2021/12/29 03:46:45 checking machine...
2021/12/29 03:46:45 checking revisions...
2021/12/29 03:46:45 testing simple program...
syzkaller login: [   48.517242][ T3603] cgroup: Unknown subsys name 'net'
[   48.628531][ T3603] cgroup: Unknown subsys name 'rlimit'
[   49.936019][ T3605] chnl_net:caif_netlink_parms(): no params data found
[   49.980077][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state
[   49.987617][ T3605] bridge0: port 1(bridge_slave_0) entered disabled state
[   49.995834][ T3605] device bridge_slave_0 entered promiscuous mode
[   50.005178][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state
[   50.012547][ T3605] bridge0: port 2(bridge_slave_1) entered disabled state
[   50.020313][ T3605] device bridge_slave_1 entered promiscuous mode
[   50.041717][ T3605] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   50.053672][ T3605] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   50.077812][ T3605] team0: Port device team_slave_0 added
[   50.085239][ T3605] team0: Port device team_slave_1 added
[   50.102753][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_0
[   50.109887][ T3605] 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.
[   50.136343][ T3605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   50.148968][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_1
[   50.156152][ T3605] 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.
[   50.182403][ T3605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   50.209954][ T3605] device hsr_slave_0 entered promiscuous mode
[   50.217755][ T3605] device hsr_slave_1 entered promiscuous mode
[   50.297481][ T3605] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   50.309876][ T3605] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   50.319336][ T3605] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   50.328485][ T3605] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   50.350881][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state
[   50.358286][ T3605] bridge0: port 2(bridge_slave_1) entered forwarding state
[   50.366333][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state
[   50.373607][ T3605] bridge0: port 1(bridge_slave_0) entered forwarding state
[   50.420706][ T3605] 8021q: adding VLAN 0 to HW filter on device bond0
[   50.434732][  T135] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   50.445944][  T135] bridge0: port 1(bridge_slave_0) entered disabled state
[   50.456038][  T135] bridge0: port 2(bridge_slave_1) entered disabled state
[   50.464948][  T135] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   50.477808][ T3605] 8021q: adding VLAN 0 to HW filter on device team0
[   50.488863][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[   50.497957][ T3614] bridge0: port 1(bridge_slave_0) entered blocking state
[   50.505333][ T3614] bridge0: port 1(bridge_slave_0) entered forwarding state
[   50.524417][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   50.533118][ T3614] bridge0: port 2(bridge_slave_1) entered blocking state
[   50.540248][ T3614] bridge0: port 2(bridge_slave_1) entered forwarding state
[   50.560151][ T3605] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[   50.572717][ T3605] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[   50.586301][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   50.595350][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   50.604266][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   50.613641][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   50.622197][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   50.629992][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   50.653734][ T3605] 8021q: adding VLAN 0 to HW filter on device batadv0
[   50.663896][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   50.671950][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   50.695220][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   50.709668][ T3605] device veth0_vlan entered promiscuous mode
[   50.717340][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   50.731188][ T3605] device veth1_vlan entered promiscuous mode
[   50.739084][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   50.747466][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   50.755773][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   50.777386][ T3605] device veth0_macvtap entered promiscuous mode
[   50.784943][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   50.793907][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   50.803276][ T3614] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   50.814513][ T3605] device veth1_macvtap entered promiscuous mode
[   50.834024][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_0
[   50.842896][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   50.857467][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_1
[   50.865291][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   50.876695][ T3605] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   50.886347][ T3605] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   50.896337][ T3605] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   50.905370][ T3605] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   50.972313][   T10] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   50.980330][   T10] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   50.986339][    T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   50.996831][  T135] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   50.997290][    T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   51.017073][  T135] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
2021/12/29 03:46:47 building call list...
executing program
[   51.347043][   T10] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   53.301067][ T3599] can: request_module (can-proto-0) failed.
[   53.323584][ T3599] can: request_module (can-proto-0) failed.
[   53.344767][ T3599] can: request_module (can-proto-0) failed.
[   53.546964][ T3599] ------------[ cut here ]------------
[   53.553223][ T3599] refcount_t: decrement hit 0; leaking memory.
[   53.559622][ T3599] WARNING: CPU: 0 PID: 3599 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0
[   53.569673][ T3599] Modules linked in:
[   53.573785][ T3599] CPU: 0 PID: 3599 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   53.582600][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.593177][ T3599] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   53.599270][ T3599] 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
[   53.619271][ T3599] RSP: 0018:ffffc90001b0fab0 EFLAGS: 00010286
[   53.626088][ T3599] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   53.635824][ T3599] RDX: ffff88807ea58000 RSI: ffffffff815f1e28 RDI: fffff52000361f48
[   53.644537][ T3599] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   53.653230][ T3599] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000361f5b
[   53.661315][ T3599] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001b0fd10
[   53.669468][ T3599] FS:  000000c0001d7090(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   53.680019][ T3599] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   53.687049][ T3599] CR2: 0000000000efecf0 CR3: 0000000015ba3000 CR4: 00000000003506f0
[   53.695714][ T3599] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   53.703919][ T3599] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   53.712354][ T3599] Call Trace:
[   53.715653][ T3599]  <TASK>
[   53.718576][ T3599]  ref_tracker_free+0x4fe/0x610
[   53.723972][ T3599]  ? ref_tracker_dir_exit+0x330/0x330
[   53.729458][ T3599]  ? bpf_sk_storage_free+0x333/0x3e0
[   53.734981][ T3599]  ? lock_downgrade+0x6e0/0x6e0
[   53.740090][ T3599]  ? kfree+0x1e1/0x560
[   53.744579][ T3599]  __sk_destruct+0x4a6/0x920
[   53.749426][ T3599]  sk_destruct+0xbd/0xe0
[   53.753907][ T3599]  __sk_free+0xef/0x3d0
[   53.759461][ T3599]  sk_free+0x78/0xa0
[   53.763552][ T3599]  __mptcp_close_ssk+0x435/0x590
[   53.768520][ T3599]  __mptcp_destroy_sock+0x35f/0x830
[   53.773933][ T3599]  ? __mptcp_close_ssk+0x590/0x590
[   53.779164][ T3599]  ? __local_bh_enable_ip+0xa0/0x120
[   53.784526][ T3599]  mptcp_close+0x5f8/0x7f0
[   53.788981][ T3599]  inet_release+0x12e/0x280
[   53.793772][ T3599]  inet6_release+0x4c/0x70
[   53.798214][ T3599]  __sock_release+0xcd/0x280
[   53.802973][ T3599]  sock_close+0x18/0x20
[   53.807242][ T3599]  __fput+0x286/0x9f0
[   53.811498][ T3599]  ? __sock_release+0x280/0x280
[   53.816464][ T3599]  task_work_run+0xdd/0x1a0
[   53.821098][ T3599]  exit_to_user_mode_prepare+0x27e/0x290
[   53.826923][ T3599]  syscall_exit_to_user_mode+0x19/0x60
[   53.832561][ T3599]  do_syscall_64+0x42/0xb0
[   53.837104][ T3599]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   53.843252][ T3599] RIP: 0033:0x4b12db
[   53.847158][ T3599] 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
[   53.867254][ T3599] RSP: 002b:000000c0003874f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   53.876065][ T3599] RAX: 0000000000000000 RBX: 000000c00001e000 RCX: 00000000004b12db
[   53.884089][ T3599] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   53.895106][ T3599] RBP: 000000c000387530 R08: 0000000000f0e801 R09: 00007ffc10bf4080
[   53.904230][ T3599] R10: 00007ffc10bf4090 R11: 0000000000000206 R12: 0000000000000080
[   53.912928][ T3599] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c00026f7c0
[   53.921603][ T3599]  </TASK>
[   53.924661][ T3599] Kernel panic - not syncing: panic_on_warn set ...
[   53.925252][   T10] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   53.931422][ T3599] CPU: 1 PID: 3599 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   53.931464][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.931478][ T3599] Call Trace:
[   53.931486][ T3599]  <TASK>
[   53.931494][ T3599]  dump_stack_lvl+0xcd/0x134
[   53.931524][ T3599]  panic+0x2b0/0x6dd
[   53.931551][ T3599]  ? __warn_printk+0xf3/0xf3
[   53.980021][ T3599]  ? __warn.cold+0x1a/0x44
[   53.984448][ T3599]  ? refcount_warn_saturate+0xbf/0x1e0
[   53.989993][ T3599]  __warn.cold+0x35/0x44
[   53.994413][ T3599]  ? wake_up_klogd.part.0+0x8e/0xd0
[   53.999634][ T3599]  ? refcount_warn_saturate+0xbf/0x1e0
[   54.005115][ T3599]  report_bug+0x1bd/0x210
[   54.009464][ T3599]  handle_bug+0x3c/0x60
[   54.013620][ T3599]  exc_invalid_op+0x14/0x40
[   54.018122][ T3599]  asm_exc_invalid_op+0x12/0x20
[   54.022977][ T3599] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   54.029234][ T3599] 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
[   54.049194][ T3599] RSP: 0018:ffffc90001b0fab0 EFLAGS: 00010286
[   54.055435][ T3599] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   54.063439][ T3599] RDX: ffff88807ea58000 RSI: ffffffff815f1e28 RDI: fffff52000361f48
[   54.071497][ T3599] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   54.079489][ T3599] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000361f5b
[   54.088853][ T3599] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001b0fd10
[   54.096829][ T3599]  ? wake_up_klogd.part.0+0x8e/0xd0
[   54.102389][ T3599]  ? vprintk+0x88/0x90
[   54.106487][ T3599]  ref_tracker_free+0x4fe/0x610
[   54.111427][ T3599]  ? ref_tracker_dir_exit+0x330/0x330
[   54.116803][ T3599]  ? bpf_sk_storage_free+0x333/0x3e0
[   54.122269][ T3599]  ? lock_downgrade+0x6e0/0x6e0
[   54.127546][ T3599]  ? kfree+0x1e1/0x560
[   54.131736][ T3599]  __sk_destruct+0x4a6/0x920
[   54.136333][ T3599]  sk_destruct+0xbd/0xe0
[   54.140584][ T3599]  __sk_free+0xef/0x3d0
[   54.144746][ T3599]  sk_free+0x78/0xa0
[   54.148668][ T3599]  __mptcp_close_ssk+0x435/0x590
[   54.153597][ T3599]  __mptcp_destroy_sock+0x35f/0x830
[   54.158976][ T3599]  ? __mptcp_close_ssk+0x590/0x590
[   54.164362][ T3599]  ? __local_bh_enable_ip+0xa0/0x120
[   54.169760][ T3599]  mptcp_close+0x5f8/0x7f0
[   54.174295][ T3599]  inet_release+0x12e/0x280
[   54.178796][ T3599]  inet6_release+0x4c/0x70
[   54.183579][ T3599]  __sock_release+0xcd/0x280
[   54.188269][ T3599]  sock_close+0x18/0x20
[   54.192537][ T3599]  __fput+0x286/0x9f0
[   54.196794][ T3599]  ? __sock_release+0x280/0x280
[   54.201768][ T3599]  task_work_run+0xdd/0x1a0
[   54.206504][ T3599]  exit_to_user_mode_prepare+0x27e/0x290
[   54.212913][ T3599]  syscall_exit_to_user_mode+0x19/0x60
[   54.218630][ T3599]  do_syscall_64+0x42/0xb0
[   54.223034][ T3599]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   54.228920][ T3599] RIP: 0033:0x4b12db
[   54.232807][ T3599] 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
[   54.252840][ T3599] RSP: 002b:000000c0003874f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   54.261336][ T3599] RAX: 0000000000000000 RBX: 000000c00001e000 RCX: 00000000004b12db
[   54.269309][ T3599] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   54.277358][ T3599] RBP: 000000c000387530 R08: 0000000000f0e801 R09: 00007ffc10bf4080
[   54.285410][ T3599] R10: 00007ffc10bf4090 R11: 0000000000000206 R12: 0000000000000080
[   54.293374][ T3599] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c00026f7c0
[   54.302317][ T3599]  </TASK>
[   54.305773][ T3599] Kernel Offset: disabled
[   54.310470][ T3599] Rebooting in 86400 seconds..