DUID 00:04:1e:62:2e:d3:28:4c:47:2c:f6:06:4a:96:1e:52:1a:b0
forked to background, child pid 3181
[   30.566154][ T3182] 8021q: adding VLAN 0 to HW filter on device bond0
[   30.584161][ T3182] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.1.66' (ECDSA) to the list of known hosts.
2021/12/30 08:27:51 fuzzer started
2021/12/30 08:27:51 connecting to host at 10.128.0.169:45951
2021/12/30 08:27:51 checking machine...
2021/12/30 08:27:51 checking revisions...
2021/12/30 08:27:51 testing simple program...
syzkaller login: [   50.811457][ T3609] cgroup: Unknown subsys name 'net'
[   50.931725][ T3609] cgroup: Unknown subsys name 'rlimit'
[   52.210314][ T3612] chnl_net:caif_netlink_parms(): no params data found
[   52.256473][ T3612] bridge0: port 1(bridge_slave_0) entered blocking state
[   52.263901][ T3612] bridge0: port 1(bridge_slave_0) entered disabled state
[   52.272040][ T3612] device bridge_slave_0 entered promiscuous mode
[   52.280879][ T3612] bridge0: port 2(bridge_slave_1) entered blocking state
[   52.288272][ T3612] bridge0: port 2(bridge_slave_1) entered disabled state
[   52.296208][ T3612] device bridge_slave_1 entered promiscuous mode
[   52.316513][ T3612] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   52.327938][ T3612] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   52.351531][ T3612] team0: Port device team_slave_0 added
[   52.358856][ T3612] team0: Port device team_slave_1 added
[   52.376892][ T3612] batman_adv: batadv0: Adding interface: batadv_slave_0
[   52.384090][ T3612] 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.
[   52.410613][ T3612] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   52.424424][ T3612] batman_adv: batadv0: Adding interface: batadv_slave_1
[   52.431395][ T3612] 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.
[   52.457690][ T3612] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   52.484820][ T3612] device hsr_slave_0 entered promiscuous mode
[   52.491480][ T3612] device hsr_slave_1 entered promiscuous mode
[   52.568764][ T3612] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   52.579410][ T3612] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   52.589233][ T3612] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   52.598196][ T3612] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   52.618937][ T3612] bridge0: port 2(bridge_slave_1) entered blocking state
[   52.626582][ T3612] bridge0: port 2(bridge_slave_1) entered forwarding state
[   52.634486][ T3612] bridge0: port 1(bridge_slave_0) entered blocking state
[   52.634583][ T3612] bridge0: port 1(bridge_slave_0) entered forwarding state
[   52.687060][ T3612] 8021q: adding VLAN 0 to HW filter on device bond0
[   52.701086][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   52.712798][ T3267] bridge0: port 1(bridge_slave_0) entered disabled state
[   52.722095][ T3267] bridge0: port 2(bridge_slave_1) entered disabled state
[   52.730963][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   52.745488][ T3612] 8021q: adding VLAN 0 to HW filter on device team0
[   52.756529][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[   52.765852][ T3621] bridge0: port 1(bridge_slave_0) entered blocking state
[   52.772960][ T3621] bridge0: port 1(bridge_slave_0) entered forwarding state
[   52.796478][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   52.805785][ T3621] bridge0: port 2(bridge_slave_1) entered blocking state
[   52.812830][ T3621] bridge0: port 2(bridge_slave_1) entered forwarding state
[   52.821548][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   52.831018][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   52.839567][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   52.853748][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   52.861967][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   52.872749][ T3612] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   52.889170][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   52.897302][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   52.909034][ T3612] 8021q: adding VLAN 0 to HW filter on device batadv0
[   52.928989][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   52.949693][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   52.958183][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   52.966552][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   52.975689][ T3612] device veth0_vlan entered promiscuous mode
[   52.988476][ T3612] device veth1_vlan entered promiscuous mode
[   53.007155][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   53.015482][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   53.023493][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   53.034977][ T3612] device veth0_macvtap entered promiscuous mode
[   53.043879][ T3612] device veth1_macvtap entered promiscuous mode
[   53.059757][ T3612] batman_adv: batadv0: Interface activated: batadv_slave_0
[   53.068327][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   53.077843][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   53.089979][ T3612] batman_adv: batadv0: Interface activated: batadv_slave_1
[   53.098187][    T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   53.108899][ T3612] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   53.118188][ T3612] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   53.128324][ T3612] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   53.137346][ T3612] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   53.200669][    T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   53.217129][    T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   53.230262][ T1086] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   53.233026][ T3621] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   53.238685][ T1086] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   53.256216][ T3267] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
2021/12/30 08:27:54 building call list...
[   53.509720][    T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
executing program
[   55.413716][ T3627] can: request_module (can-proto-0) failed.
[   55.435723][ T3627] can: request_module (can-proto-0) failed.
[   55.456726][ T3627] can: request_module (can-proto-0) failed.
[   55.651257][ T3627] ------------[ cut here ]------------
[   55.656967][ T3627] refcount_t: decrement hit 0; leaking memory.
[   55.663454][ T3627] WARNING: CPU: 1 PID: 3627 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0
[   55.673071][ T3627] Modules linked in:
[   55.677373][ T3627] CPU: 1 PID: 3627 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   55.688317][ T3627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.700852][ T3627] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   55.710687][ T3627] Code: 1d d1 d6 a0 09 31 ff 89 de e8 5d 65 9b fd 84 db 75 e0 e8 74 61 9b fd 48 c7 c7 20 0b 05 8a c6 05 b1 d6 a0 09 01 e8 cc 56 27 05 <0f> 0b eb c4 e8 58 61 9b fd 0f b6 1d a0 d6 a0 09 31 ff 89 de e8 28
[   55.731680][ T3627] RSP: 0018:ffffc9000208fab0 EFLAGS: 00010286
[   55.738677][ T3627] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   55.747109][ T3627] RDX: ffff88801a013a00 RSI: ffffffff815f1e28 RDI: fffff52000411f48
[   55.755371][ T3627] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   55.763355][ T3627] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000411f5b
[   55.771436][ T3627] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc9000208fd10
[   55.780216][ T3627] FS:  000000c0004a6890(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   55.789368][ T3627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.796395][ T3627] CR2: 00007f89b486b300 CR3: 0000000019689000 CR4: 00000000003506f0
[   55.804571][ T3627] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   55.812555][ T3627] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   55.820569][ T3627] Call Trace:
[   55.823850][ T3627]  <TASK>
[   55.826917][ T3627]  ref_tracker_free+0x4fe/0x610
[   55.831786][ T3627]  ? ref_tracker_dir_exit+0x330/0x330
[   55.837293][ T3627]  ? bpf_sk_storage_free+0x333/0x3e0
[   55.842595][ T3627]  ? lock_downgrade+0x6e0/0x6e0
[   55.847524][ T3627]  ? kfree+0x1e1/0x560
[   55.851700][ T3627]  __sk_destruct+0x4a6/0x920
[   55.856427][ T3627]  sk_destruct+0xbd/0xe0
[   55.860692][ T3627]  __sk_free+0xef/0x3d0
[   55.865125][ T3627]  sk_free+0x78/0xa0
[   55.869040][ T3627]  __mptcp_close_ssk+0x435/0x590
[   55.873999][ T3627]  __mptcp_destroy_sock+0x35f/0x830
[   55.879278][ T3627]  ? __mptcp_close_ssk+0x590/0x590
[   55.884541][ T3627]  ? __local_bh_enable_ip+0xa0/0x120
[   55.889965][ T3627]  mptcp_close+0x5f8/0x7f0
[   55.894586][ T3627]  inet_release+0x12e/0x280
[   55.899128][ T3627]  inet6_release+0x4c/0x70
[   55.903550][ T3627]  __sock_release+0xcd/0x280
[   55.908238][ T3627]  sock_close+0x18/0x20
[   55.912429][ T3627]  __fput+0x286/0x9f0
[   55.916597][ T3627]  ? __sock_release+0x280/0x280
[   55.921464][ T3627]  task_work_run+0xdd/0x1a0
[   55.926161][ T3627]  exit_to_user_mode_prepare+0x27e/0x290
[   55.931990][ T3627]  syscall_exit_to_user_mode+0x19/0x60
[   55.937553][ T3627]  do_syscall_64+0x42/0xb0
[   55.941984][ T3627]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   55.948016][ T3627] RIP: 0033:0x4b12db
[   55.951921][ 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
[   55.971874][ T3627] RSP: 002b:000000c00029f4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   55.980408][ T3627] RAX: 0000000000000000 RBX: 000000c00001c000 RCX: 00000000004b12db
[   55.988669][ T3627] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   55.996891][ T3627] RBP: 000000c00029f530 R08: 0000000000f0e801 R09: 00007ffd9abfa080
[   56.004978][ T3627] R10: 00007ffd9abfa090 R11: 0000000000000206 R12: 000000000000000b
[   56.012958][ T3627] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0004163c0
[   56.021124][ T3627]  </TASK>
[   56.024149][ T3627] Kernel panic - not syncing: panic_on_warn set ...
[   56.030720][ T3627] CPU: 0 PID: 3627 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   56.039037][ T3627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   56.049074][ T3627] Call Trace:
[   56.052335][ T3627]  <TASK>
[   56.055251][ T3627]  dump_stack_lvl+0xcd/0x134
[   56.059829][ T3627]  panic+0x2b0/0x6dd
[   56.063713][ T3627]  ? __warn_printk+0xf3/0xf3
[   56.068296][ T3627]  ? __warn.cold+0x1a/0x44
[   56.072701][ T3627]  ? refcount_warn_saturate+0xbf/0x1e0
[   56.078145][ T3627]  __warn.cold+0x35/0x44
[   56.082371][ T3627]  ? wake_up_klogd.part.0+0x8e/0xd0
[   56.087554][ T3627]  ? refcount_warn_saturate+0xbf/0x1e0
[   56.092997][ T3627]  report_bug+0x1bd/0x210
[   56.097319][ T3627]  handle_bug+0x3c/0x60
[   56.101461][ T3627]  exc_invalid_op+0x14/0x40
[   56.105950][ T3627]  asm_exc_invalid_op+0x12/0x20
[   56.110782][ T3627] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   56.116848][ T3627] Code: 1d d1 d6 a0 09 31 ff 89 de e8 5d 65 9b fd 84 db 75 e0 e8 74 61 9b fd 48 c7 c7 20 0b 05 8a c6 05 b1 d6 a0 09 01 e8 cc 56 27 05 <0f> 0b eb c4 e8 58 61 9b fd 0f b6 1d a0 d6 a0 09 31 ff 89 de e8 28
[   56.136615][ T3627] RSP: 0018:ffffc9000208fab0 EFLAGS: 00010286
[   56.142663][ T3627] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   56.150615][ T3627] RDX: ffff88801a013a00 RSI: ffffffff815f1e28 RDI: fffff52000411f48
[   56.158567][ T3627] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   56.166520][ T3627] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000411f5b
[   56.174565][ T3627] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc9000208fd10
[   56.182529][ T3627]  ? wake_up_klogd.part.0+0x8e/0xd0
[   56.187720][ T3627]  ? vprintk+0x88/0x90
[   56.191783][ T3627]  ref_tracker_free+0x4fe/0x610
[   56.196632][ T3627]  ? ref_tracker_dir_exit+0x330/0x330
[   56.202003][ T3627]  ? bpf_sk_storage_free+0x333/0x3e0
[   56.207371][ T3627]  ? lock_downgrade+0x6e0/0x6e0
[   56.212211][ T3627]  ? kfree+0x1e1/0x560
[   56.216286][ T3627]  __sk_destruct+0x4a6/0x920
[   56.220873][ T3627]  sk_destruct+0xbd/0xe0
[   56.225104][ T3627]  __sk_free+0xef/0x3d0
[   56.229244][ T3627]  sk_free+0x78/0xa0
[   56.233125][ T3627]  __mptcp_close_ssk+0x435/0x590
[   56.238051][ T3627]  __mptcp_destroy_sock+0x35f/0x830
[   56.243237][ T3627]  ? __mptcp_close_ssk+0x590/0x590
[   56.248334][ T3627]  ? __local_bh_enable_ip+0xa0/0x120
[   56.253631][ T3627]  mptcp_close+0x5f8/0x7f0
[   56.258038][ T3627]  inet_release+0x12e/0x280
[   56.262527][ T3627]  inet6_release+0x4c/0x70
[   56.266930][ T3627]  __sock_release+0xcd/0x280
[   56.271502][ T3627]  sock_close+0x18/0x20
[   56.275639][ T3627]  __fput+0x286/0x9f0
[   56.279608][ T3627]  ? __sock_release+0x280/0x280
[   56.284440][ T3627]  task_work_run+0xdd/0x1a0
[   56.288946][ T3627]  exit_to_user_mode_prepare+0x27e/0x290
[   56.294568][ T3627]  syscall_exit_to_user_mode+0x19/0x60
[   56.300044][ T3627]  do_syscall_64+0x42/0xb0
[   56.304448][ T3627]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   56.310326][ T3627] RIP: 0033:0x4b12db
[   56.314206][ 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
[   56.333884][ T3627] RSP: 002b:000000c00029f4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   56.342388][ T3627] RAX: 0000000000000000 RBX: 000000c00001c000 RCX: 00000000004b12db
[   56.350352][ T3627] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   56.358308][ T3627] RBP: 000000c00029f530 R08: 0000000000f0e801 R09: 00007ffd9abfa080
[   56.366271][ T3627] R10: 00007ffd9abfa090 R11: 0000000000000206 R12: 000000000000000b
[   56.374252][ T3627] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0004163c0
[   56.382227][ T3627]  </TASK>
[   56.385732][ T3627] Kernel Offset: disabled
[   56.390130][ T3627] Rebooting in 86400 seconds..