DUID 00:04:ac:d3:e9:6f:d6:cf:30:00:cb:75:86:98:6a:d5:8e:9b
forked to background, child pid 3181
[   33.480442][ T3182] 8021q: adding VLAN 0 to HW filter on device bond0
[   33.521550][ T3182] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.49' (ECDSA) to the list of known hosts.
2021/12/15 07:45:18 fuzzer started
2021/12/15 07:45:18 connecting to host at 10.128.0.169:32841
2021/12/15 07:45:18 checking machine...
2021/12/15 07:45:18 checking revisions...
2021/12/15 07:45:19 testing simple program...
syzkaller login: [   51.831539][ T3606] cgroup: Unknown subsys name 'net'
[   51.948146][ T3606] cgroup: Unknown subsys name 'rlimit'
[   53.243162][ T3609] chnl_net:caif_netlink_parms(): no params data found
[   53.289033][ T3609] bridge0: port 1(bridge_slave_0) entered blocking state
[   53.297551][ T3609] bridge0: port 1(bridge_slave_0) entered disabled state
[   53.305987][ T3609] device bridge_slave_0 entered promiscuous mode
[   53.316616][ T3609] bridge0: port 2(bridge_slave_1) entered blocking state
[   53.324198][ T3609] bridge0: port 2(bridge_slave_1) entered disabled state
[   53.332716][ T3609] device bridge_slave_1 entered promiscuous mode
[   53.352455][ T3609] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   53.365196][ T3609] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   53.387770][ T3609] team0: Port device team_slave_0 added
[   53.396318][ T3609] team0: Port device team_slave_1 added
[   53.413323][ T3609] batman_adv: batadv0: Adding interface: batadv_slave_0
[   53.420277][ T3609] 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.
[   53.446907][ T3609] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   53.459756][ T3609] batman_adv: batadv0: Adding interface: batadv_slave_1
[   53.467415][ T3609] 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.
[   53.494749][ T3609] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   53.522576][ T3609] device hsr_slave_0 entered promiscuous mode
[   53.530265][ T3609] device hsr_slave_1 entered promiscuous mode
[   53.610031][ T3609] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   53.622271][ T3609] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   53.631279][ T3609] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   53.640510][ T3609] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   53.663220][ T3609] bridge0: port 2(bridge_slave_1) entered blocking state
[   53.670420][ T3609] bridge0: port 2(bridge_slave_1) entered forwarding state
[   53.678339][ T3609] bridge0: port 1(bridge_slave_0) entered blocking state
[   53.685980][ T3609] bridge0: port 1(bridge_slave_0) entered forwarding state
[   53.734516][ T3609] 8021q: adding VLAN 0 to HW filter on device bond0
[   53.747689][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   53.758711][    T5] bridge0: port 1(bridge_slave_0) entered disabled state
[   53.769060][    T5] bridge0: port 2(bridge_slave_1) entered disabled state
[   53.778056][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   53.792297][ T3609] 8021q: adding VLAN 0 to HW filter on device team0
[   53.805182][   T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[   53.813928][   T25] bridge0: port 1(bridge_slave_0) entered blocking state
[   53.821370][   T25] bridge0: port 1(bridge_slave_0) entered forwarding state
[   53.832664][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   53.842111][    T5] bridge0: port 2(bridge_slave_1) entered blocking state
[   53.849198][    T5] bridge0: port 2(bridge_slave_1) entered forwarding state
[   53.873529][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   53.883102][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   53.891696][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   53.903772][ T3609] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[   53.917727][ T3609] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   53.926226][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   53.934615][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   53.957635][ T3609] 8021q: adding VLAN 0 to HW filter on device batadv0
[   53.966102][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   53.974200][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   53.991453][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   54.011687][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   54.020520][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   54.029204][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   54.039573][ T3609] device veth0_vlan entered promiscuous mode
[   54.050754][ T3609] device veth1_vlan entered promiscuous mode
[   54.074253][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   54.082511][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   54.091478][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   54.101929][ T3609] device veth0_macvtap entered promiscuous mode
[   54.113191][ T3609] device veth1_macvtap entered promiscuous mode
[   54.129468][ T3609] batman_adv: batadv0: Interface activated: batadv_slave_0
[   54.138227][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   54.147548][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   54.160737][ T3609] batman_adv: batadv0: Interface activated: batadv_slave_1
[   54.170438][ T3609] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   54.179900][ T3609] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   54.190131][ T3609] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   54.198954][ T3609] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   54.210067][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   54.275018][    T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   54.290679][    T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   54.303393][   T25] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   54.313773][   T54] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   54.323169][   T54] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   54.334272][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
2021/12/15 07:45:21 building call list...
[   54.589477][   T54] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
executing program
[   56.538345][ T3602] can: request_module (can-proto-0) failed.
[   56.560587][ T3602] can: request_module (can-proto-0) failed.
[   56.584150][ T3602] can: request_module (can-proto-0) failed.
[   56.789502][ T3602] ------------[ cut here ]------------
[   56.795378][ T3602] refcount_t: decrement hit 0; leaking memory.
[   56.802255][ T3602] WARNING: CPU: 1 PID: 3602 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0
[   56.811826][ T3602] Modules linked in:
[   56.815724][ T3602] CPU: 1 PID: 3602 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   56.824648][ T3602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.835905][ T3602] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   56.842271][ T3602] Code: 1d b1 99 a1 09 31 ff 89 de e8 5d 3a 9c fd 84 db 75 e0 e8 74 36 9c fd 48 c7 c7 60 00 05 8a c6 05 91 99 a1 09 01 e8 cc 4b 27 05 <0f> 0b eb c4 e8 58 36 9c fd 0f b6 1d 80 99 a1 09 31 ff 89 de e8 28
[   56.863368][ T3602] RSP: 0018:ffffc90001f5fab0 EFLAGS: 00010286
[   56.869463][ T3602] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   56.877817][ T3602] RDX: ffff888076c51d00 RSI: ffffffff815f1e28 RDI: fffff520003ebf48
[   56.886932][ T3602] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000001
[   56.895311][ T3602] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003ebf5b
[   56.904473][ T3602] R13: 00000000ffffffef R14: ffffffff8d2fcd94 R15: ffffc90001f5fd10
[   56.913245][ T3602] FS:  000000c00017fc90(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   56.922818][ T3602] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.929424][ T3602] CR2: 00007ff5ed126690 CR3: 0000000021957000 CR4: 00000000003506e0
[   56.938633][ T3602] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   56.947080][ T3602] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   56.955350][ T3602] Call Trace:
[   56.958640][ T3602]  <TASK>
[   56.961952][ T3602]  ref_tracker_free+0x4fe/0x610
[   56.966830][ T3602]  ? ref_tracker_dir_exit+0x330/0x330
[   56.972360][ T3602]  ? bpf_sk_storage_free+0x333/0x3e0
[   56.977796][ T3602]  ? lock_downgrade+0x6e0/0x6e0
[   56.982990][ T3602]  ? kfree+0x1e1/0x560
[   56.987091][ T3602]  __sk_destruct+0x4a6/0x920
[   56.991807][ T3602]  sk_destruct+0xbd/0xe0
[   56.996219][ T3602]  __sk_free+0xef/0x3d0
[   57.001090][ T3602]  sk_free+0x78/0xa0
[   57.005091][ T3602]  __mptcp_close_ssk+0x435/0x590
[   57.010217][ T3602]  __mptcp_destroy_sock+0x35f/0x830
[   57.015729][ T3602]  ? __mptcp_close_ssk+0x590/0x590
[   57.021123][ T3602]  ? __local_bh_enable_ip+0xa0/0x120
[   57.026449][ T3602]  mptcp_close+0x5f8/0x7f0
[   57.031015][ T3602]  inet_release+0x12e/0x280
[   57.035779][ T3602]  inet6_release+0x4c/0x70
[   57.040596][ T3602]  __sock_release+0xcd/0x280
[   57.045813][ T3602]  sock_close+0x18/0x20
[   57.050005][ T3602]  __fput+0x286/0x9f0
[   57.054075][ T3602]  ? __sock_release+0x280/0x280
[   57.058953][ T3602]  task_work_run+0xdd/0x1a0
[   57.063630][ T3602]  exit_to_user_mode_prepare+0x27e/0x290
[   57.069283][ T3602]  syscall_exit_to_user_mode+0x19/0x60
[   57.074856][ T3602]  do_syscall_64+0x42/0xb0
[   57.079372][ T3602]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   57.085343][ T3602] RIP: 0033:0x4b12db
[   57.089383][ 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
[   57.110448][ T3602] RSP: 002b:000000c0002cd4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   57.119072][ T3602] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004b12db
[   57.127258][ T3602] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   57.135403][ T3602] RBP: 000000c0002cd530 R08: 0000000000f0ae01 R09: 00007ffcc24c0080
[   57.143713][ T3602] R10: 00007ffcc24c0090 R11: 0000000000000206 R12: 000000000000000c
[   57.151944][ T3602] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0001b06e0
[   57.160041][ T3602]  </TASK>
[   57.163179][ T3602] Kernel panic - not syncing: panic_on_warn set ...
[   57.169762][ T3602] CPU: 1 PID: 3602 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   57.178074][ T3602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.188126][ T3602] Call Trace:
[   57.191421][ T3602]  <TASK>
[   57.194346][ T3602]  dump_stack_lvl+0xcd/0x134
[   57.199017][ T3602]  panic+0x2b0/0x6dd
[   57.202993][ T3602]  ? __warn_printk+0xf3/0xf3
[   57.207615][ T3602]  ? __warn.cold+0x1a/0x44
[   57.212097][ T3602]  ? refcount_warn_saturate+0xbf/0x1e0
[   57.217573][ T3602]  __warn.cold+0x35/0x44
[   57.221824][ T3602]  ? wake_up_klogd.part.0+0x8e/0xd0
[   57.227132][ T3602]  ? refcount_warn_saturate+0xbf/0x1e0
[   57.232595][ T3602]  report_bug+0x1bd/0x210
[   57.236933][ T3602]  handle_bug+0x3c/0x60
[   57.241100][ T3602]  exc_invalid_op+0x14/0x40
[   57.245698][ T3602]  asm_exc_invalid_op+0x12/0x20
[   57.250620][ T3602] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   57.256697][ T3602] Code: 1d b1 99 a1 09 31 ff 89 de e8 5d 3a 9c fd 84 db 75 e0 e8 74 36 9c fd 48 c7 c7 60 00 05 8a c6 05 91 99 a1 09 01 e8 cc 4b 27 05 <0f> 0b eb c4 e8 58 36 9c fd 0f b6 1d 80 99 a1 09 31 ff 89 de e8 28
[   57.278188][ T3602] RSP: 0018:ffffc90001f5fab0 EFLAGS: 00010286
[   57.284259][ T3602] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   57.292225][ T3602] RDX: ffff888076c51d00 RSI: ffffffff815f1e28 RDI: fffff520003ebf48
[   57.300200][ T3602] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000001
[   57.308294][ T3602] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003ebf5b
[   57.316264][ T3602] R13: 00000000ffffffef R14: ffffffff8d2fcd94 R15: ffffc90001f5fd10
[   57.324230][ T3602]  ? wake_up_klogd.part.0+0x8e/0xd0
[   57.329427][ T3602]  ? vprintk+0x88/0x90
[   57.333517][ T3602]  ref_tracker_free+0x4fe/0x610
[   57.338409][ T3602]  ? ref_tracker_dir_exit+0x330/0x330
[   57.343895][ T3602]  ? bpf_sk_storage_free+0x333/0x3e0
[   57.349185][ T3602]  ? lock_downgrade+0x6e0/0x6e0
[   57.354028][ T3602]  ? kfree+0x1e1/0x560
[   57.358102][ T3602]  __sk_destruct+0x4a6/0x920
[   57.362687][ T3602]  sk_destruct+0xbd/0xe0
[   57.366919][ T3602]  __sk_free+0xef/0x3d0
[   57.371072][ T3602]  sk_free+0x78/0xa0
[   57.374962][ T3602]  __mptcp_close_ssk+0x435/0x590
[   57.379983][ T3602]  __mptcp_destroy_sock+0x35f/0x830
[   57.385170][ T3602]  ? __mptcp_close_ssk+0x590/0x590
[   57.390268][ T3602]  ? __local_bh_enable_ip+0xa0/0x120
[   57.395545][ T3602]  mptcp_close+0x5f8/0x7f0
[   57.399950][ T3602]  inet_release+0x12e/0x280
[   57.404443][ T3602]  inet6_release+0x4c/0x70
[   57.408849][ T3602]  __sock_release+0xcd/0x280
[   57.413429][ T3602]  sock_close+0x18/0x20
[   57.417573][ T3602]  __fput+0x286/0x9f0
[   57.421639][ T3602]  ? __sock_release+0x280/0x280
[   57.426483][ T3602]  task_work_run+0xdd/0x1a0
[   57.430975][ T3602]  exit_to_user_mode_prepare+0x27e/0x290
[   57.436595][ T3602]  syscall_exit_to_user_mode+0x19/0x60
[   57.442040][ T3602]  do_syscall_64+0x42/0xb0
[   57.446474][ T3602]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   57.452353][ T3602] RIP: 0033:0x4b12db
[   57.456231][ 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
[   57.475839][ T3602] RSP: 002b:000000c0002cd4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   57.484237][ T3602] RAX: 0000000000000000 RBX: 000000c00001e800 RCX: 00000000004b12db
[   57.492284][ T3602] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   57.500242][ T3602] RBP: 000000c0002cd530 R08: 0000000000f0ae01 R09: 00007ffcc24c0080
[   57.508202][ T3602] R10: 00007ffcc24c0090 R11: 0000000000000206 R12: 000000000000000c
[   57.516178][ T3602] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0001b06e0
[   57.524150][ T3602]  </TASK>
[   57.527539][ T3602] Kernel Offset: disabled
[   57.531954][ T3602] Rebooting in 86400 seconds..