DUID 00:04:ac:d3:e9:6f:d6:cf:30:00:cb:75:86:98:6a:d5:8e:9b
forked to background, child pid 3180
[   31.367474][ T3181] 8021q: adding VLAN 0 to HW filter on device bond0
[   31.384146][ T3181] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.10.15' (ECDSA) to the list of known hosts.
2021/12/16 20:42:31 fuzzer started
2021/12/16 20:42:31 connecting to host at 10.128.0.169:33167
2021/12/16 20:42:31 checking machine...
2021/12/16 20:42:31 checking revisions...
2021/12/16 20:42:31 testing simple program...
syzkaller login: [   51.946909][ T3608] cgroup: Unknown subsys name 'net'
[   52.086953][ T3608] cgroup: Unknown subsys name 'rlimit'
[   53.393046][ T3610] chnl_net:caif_netlink_parms(): no params data found
[   53.435915][ T3610] bridge0: port 1(bridge_slave_0) entered blocking state
[   53.443467][ T3610] bridge0: port 1(bridge_slave_0) entered disabled state
[   53.451399][ T3610] device bridge_slave_0 entered promiscuous mode
[   53.460788][ T3610] bridge0: port 2(bridge_slave_1) entered blocking state
[   53.467906][ T3610] bridge0: port 2(bridge_slave_1) entered disabled state
[   53.475732][ T3610] device bridge_slave_1 entered promiscuous mode
[   53.496065][ T3610] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   53.506940][ T3610] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   53.528939][ T3610] team0: Port device team_slave_0 added
[   53.536904][ T3610] team0: Port device team_slave_1 added
[   53.553696][ T3610] batman_adv: batadv0: Adding interface: batadv_slave_0
[   53.560966][ T3610] 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.
[   53.588274][ T3610] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   53.601449][ T3610] batman_adv: batadv0: Adding interface: batadv_slave_1
[   53.608389][ T3610] 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.
[   53.634384][ T3610] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   53.660460][ T3610] device hsr_slave_0 entered promiscuous mode
[   53.667595][ T3610] device hsr_slave_1 entered promiscuous mode
[   53.745887][ T3610] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   53.756529][ T3610] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   53.765898][ T3610] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   53.776847][ T3610] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   53.797863][ T3610] bridge0: port 2(bridge_slave_1) entered blocking state
[   53.805059][ T3610] bridge0: port 2(bridge_slave_1) entered forwarding state
[   53.812802][ T3610] bridge0: port 1(bridge_slave_0) entered blocking state
[   53.819882][ T3610] bridge0: port 1(bridge_slave_0) entered forwarding state
[   53.867028][ T3610] 8021q: adding VLAN 0 to HW filter on device bond0
[   53.878835][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   53.889213][    T7] bridge0: port 1(bridge_slave_0) entered disabled state
[   53.898602][    T7] bridge0: port 2(bridge_slave_1) entered disabled state
[   53.907136][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   53.921615][ T3610] 8021q: adding VLAN 0 to HW filter on device team0
[   53.931760][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[   53.941602][    T7] bridge0: port 1(bridge_slave_0) entered blocking state
[   53.948734][    T7] bridge0: port 1(bridge_slave_0) entered forwarding state
[   53.961048][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   53.970558][ T3621] bridge0: port 2(bridge_slave_1) entered blocking state
[   53.977632][ T3621] bridge0: port 2(bridge_slave_1) entered forwarding state
[   53.997922][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   54.006418][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   54.017859][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   54.029308][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   54.042003][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   54.053893][ T3610] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   54.069251][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   54.076843][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   54.089069][ T3610] 8021q: adding VLAN 0 to HW filter on device batadv0
[   54.106652][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   54.124872][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   54.134180][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   54.142308][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   54.154073][ T3610] device veth0_vlan entered promiscuous mode
[   54.166116][ T3610] device veth1_vlan entered promiscuous mode
[   54.185548][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   54.193927][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   54.202560][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   54.213349][ T3610] device veth0_macvtap entered promiscuous mode
[   54.223746][ T3610] device veth1_macvtap entered promiscuous mode
[   54.239027][ T3610] batman_adv: batadv0: Interface activated: batadv_slave_0
[   54.246774][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   54.257450][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   54.268842][ T3610] batman_adv: batadv0: Interface activated: batadv_slave_1
[   54.277076][ T3622] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   54.287788][ T3610] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   54.297547][ T3610] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   54.306415][ T3610] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   54.315142][ T3610] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   54.374706][   T10] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   54.383643][   T10] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   54.399400][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   54.411737][   T10] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   54.420083][   T10] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   54.428487][    T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
2021/12/16 20:42:34 building call list...
[   54.701809][    T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
executing program
[   56.613896][ T3627] can: request_module (can-proto-0) failed.
[   56.635812][ T3627] can: request_module (can-proto-0) failed.
[   56.661387][ T3627] can: request_module (can-proto-0) failed.
[   56.856428][ T3627] ------------[ cut here ]------------
[   56.862567][ T3627] refcount_t: decrement hit 0; leaking memory.
[   56.868955][ T3627] WARNING: CPU: 0 PID: 3627 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0
[   56.878632][ T3627] Modules linked in:
[   56.883656][ T3627] CPU: 1 PID: 3627 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   56.892076][ T3627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.902340][ T3627] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   56.908426][ T3627] 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
[   56.928656][ T3627] RSP: 0018:ffffc9000282fab0 EFLAGS: 00010286
[   56.936102][ T3627] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   56.944239][ T3627] RDX: ffff888021783a00 RSI: ffffffff815f1e28 RDI: fffff52000505f48
[   56.953094][ T3627] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   56.961189][ T3627] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000505f5b
[   56.969738][ T3627] R13: 00000000ffffffef R14: ffffffff8d2fcd94 R15: ffffc9000282fd10
[   56.977730][ T3627] FS:  000000c00042c890(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   56.986860][ T3627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.993483][ T3627] CR2: 00007f1d9bb0f300 CR3: 0000000074bab000 CR4: 00000000003506e0
[   57.001518][ T3627] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   57.009666][ T3627] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   57.017765][ T3627] Call Trace:
[   57.021413][ T3627]  <TASK>
[   57.024344][ T3627]  ref_tracker_free+0x4fe/0x610
[   57.029191][ T3627]  ? ref_tracker_dir_exit+0x330/0x330
[   57.034840][ T3627]  ? bpf_sk_storage_free+0x333/0x3e0
[   57.040625][ T3627]  ? lock_downgrade+0x6e0/0x6e0
[   57.045507][ T3627]  ? kfree+0x1e1/0x560
[   57.049669][ T3627]  __sk_destruct+0x4a6/0x920
[   57.054475][ T3627]  sk_destruct+0xbd/0xe0
[   57.058717][ T3627]  __sk_free+0xef/0x3d0
[   57.062960][ T3627]  sk_free+0x78/0xa0
[   57.067027][ T3627]  __mptcp_close_ssk+0x435/0x590
[   57.072163][ T3627]  __mptcp_destroy_sock+0x35f/0x830
[   57.077382][ T3627]  ? __mptcp_close_ssk+0x590/0x590
[   57.082699][ T3627]  ? __local_bh_enable_ip+0xa0/0x120
[   57.088235][ T3627]  mptcp_close+0x5f8/0x7f0
[   57.092803][ T3627]  inet_release+0x12e/0x280
[   57.097428][ T3627]  inet6_release+0x4c/0x70
[   57.102183][ T3627]  __sock_release+0xcd/0x280
[   57.107930][ T3627]  sock_close+0x18/0x20
[   57.112253][ T3627]  __fput+0x286/0x9f0
[   57.116371][ T3627]  ? __sock_release+0x280/0x280
[   57.121358][ T3627]  task_work_run+0xdd/0x1a0
[   57.126345][ T3627]  exit_to_user_mode_prepare+0x27e/0x290
[   57.132223][ T3627]  syscall_exit_to_user_mode+0x19/0x60
[   57.137785][ T3627]  do_syscall_64+0x42/0xb0
[   57.142400][ T3627]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   57.148313][ T3627] RIP: 0033:0x4b12db
[   57.152584][ T3627] 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
[   57.172371][ T3627] RSP: 002b:000000c0004914f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   57.181374][ T3627] RAX: 0000000000000000 RBX: 000000c00001e000 RCX: 00000000004b12db
[   57.189502][ T3627] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   57.197557][ T3627] RBP: 000000c000491530 R08: 0000000000f0ae01 R09: 00007ffd7737f080
[   57.205604][ T3627] R10: 00007ffd7737f090 R11: 0000000000000206 R12: 000000000000000a
[   57.213736][ T3627] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0003b01e0
[   57.222037][ T3627]  </TASK>
[   57.225155][ T3627] Kernel panic - not syncing: panic_on_warn set ...
[   57.231722][ T3627] CPU: 0 PID: 3627 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   57.240037][ T3627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.250178][ T3627] Call Trace:
[   57.253444][ T3627]  <TASK>
[   57.256359][ T3627]  dump_stack_lvl+0xcd/0x134
[   57.260949][ T3627]  panic+0x2b0/0x6dd
[   57.264918][ T3627]  ? __warn_printk+0xf3/0xf3
[   57.269514][ T3627]  ? __warn.cold+0x1a/0x44
[   57.273929][ T3627]  ? refcount_warn_saturate+0xbf/0x1e0
[   57.279379][ T3627]  __warn.cold+0x35/0x44
[   57.283800][ T3627]  ? wake_up_klogd.part.0+0x8e/0xd0
[   57.289193][ T3627]  ? refcount_warn_saturate+0xbf/0x1e0
[   57.294645][ T3627]  report_bug+0x1bd/0x210
[   57.298985][ T3627]  handle_bug+0x3c/0x60
[   57.303143][ T3627]  exc_invalid_op+0x14/0x40
[   57.307649][ T3627]  asm_exc_invalid_op+0x12/0x20
[   57.312589][ T3627] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   57.318846][ T3627] 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
[   57.338467][ T3627] RSP: 0018:ffffc9000282fab0 EFLAGS: 00010286
[   57.344534][ T3627] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   57.352501][ T3627] RDX: ffff888021783a00 RSI: ffffffff815f1e28 RDI: fffff52000505f48
[   57.360731][ T3627] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   57.368782][ T3627] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000505f5b
[   57.377008][ T3627] R13: 00000000ffffffef R14: ffffffff8d2fcd94 R15: ffffc9000282fd10
[   57.385243][ T3627]  ? wake_up_klogd.part.0+0x8e/0xd0
[   57.390451][ T3627]  ? vprintk+0x88/0x90
[   57.394526][ T3627]  ref_tracker_free+0x4fe/0x610
[   57.399385][ T3627]  ? ref_tracker_dir_exit+0x330/0x330
[   57.404844][ T3627]  ? bpf_sk_storage_free+0x333/0x3e0
[   57.410130][ T3627]  ? lock_downgrade+0x6e0/0x6e0
[   57.414982][ T3627]  ? kfree+0x1e1/0x560
[   57.419068][ T3627]  __sk_destruct+0x4a6/0x920
[   57.423664][ T3627]  sk_destruct+0xbd/0xe0
[   57.427914][ T3627]  __sk_free+0xef/0x3d0
[   57.432158][ T3627]  sk_free+0x78/0xa0
[   57.436052][ T3627]  __mptcp_close_ssk+0x435/0x590
[   57.440992][ T3627]  __mptcp_destroy_sock+0x35f/0x830
[   57.446286][ T3627]  ? __mptcp_close_ssk+0x590/0x590
[   57.451399][ T3627]  ? __local_bh_enable_ip+0xa0/0x120
[   57.456777][ T3627]  mptcp_close+0x5f8/0x7f0
[   57.461194][ T3627]  inet_release+0x12e/0x280
[   57.465700][ T3627]  inet6_release+0x4c/0x70
[   57.470554][ T3627]  __sock_release+0xcd/0x280
[   57.475202][ T3627]  sock_close+0x18/0x20
[   57.479418][ T3627]  __fput+0x286/0x9f0
[   57.483408][ T3627]  ? __sock_release+0x280/0x280
[   57.488545][ T3627]  task_work_run+0xdd/0x1a0
[   57.493056][ T3627]  exit_to_user_mode_prepare+0x27e/0x290
[   57.498693][ T3627]  syscall_exit_to_user_mode+0x19/0x60
[   57.504153][ T3627]  do_syscall_64+0x42/0xb0
[   57.508574][ T3627]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   57.514558][ T3627] RIP: 0033:0x4b12db
[   57.518519][ T3627] 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
[   57.538998][ T3627] RSP: 002b:000000c0004914f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   57.547467][ T3627] RAX: 0000000000000000 RBX: 000000c00001e000 RCX: 00000000004b12db
[   57.555448][ T3627] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   57.563527][ T3627] RBP: 000000c000491530 R08: 0000000000f0ae01 R09: 00007ffd7737f080
[   57.571495][ T3627] R10: 00007ffd7737f090 R11: 0000000000000206 R12: 000000000000000a
[   57.579465][ T3627] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0003b01e0
[   57.587543][ T3627]  </TASK>
[   57.593678][ T3627] Kernel Offset: disabled
[   57.598108][ T3627] Rebooting in 86400 seconds..