DUID 00:04:1e:62:2e:d3:28:4c:47:2c:f6:06:4a:96:1e:52:1a:b0
forked to background, child pid 3182
[   33.950900][ T3183] 8021q: adding VLAN 0 to HW filter on device bond0
[   33.960880][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.129' (ECDSA) to the list of known hosts.
2021/12/29 17:11:34 fuzzer started
2021/12/29 17:11:35 connecting to host at 10.128.0.169:32775
2021/12/29 17:11:35 checking machine...
2021/12/29 17:11:35 checking revisions...
2021/12/29 17:11:35 testing simple program...
syzkaller login: [   50.078590][ T3611] cgroup: Unknown subsys name 'net'
[   50.192697][ T3611] cgroup: Unknown subsys name 'rlimit'
[   51.490761][ T3613] chnl_net:caif_netlink_parms(): no params data found
[   51.536620][ T3613] bridge0: port 1(bridge_slave_0) entered blocking state
[   51.544295][ T3613] bridge0: port 1(bridge_slave_0) entered disabled state
[   51.552384][ T3613] device bridge_slave_0 entered promiscuous mode
[   51.562025][ T3613] bridge0: port 2(bridge_slave_1) entered blocking state
[   51.569440][ T3613] bridge0: port 2(bridge_slave_1) entered disabled state
[   51.577575][ T3613] device bridge_slave_1 entered promiscuous mode
[   51.598120][ T3613] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[   51.609214][ T3613] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[   51.632728][ T3613] team0: Port device team_slave_0 added
[   51.640289][ T3613] team0: Port device team_slave_1 added
[   51.657754][ T3613] batman_adv: batadv0: Adding interface: batadv_slave_0
[   51.665469][ T3613] 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.
[   51.691892][ T3613] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[   51.705250][ T3613] batman_adv: batadv0: Adding interface: batadv_slave_1
[   51.712198][ T3613] 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.
[   51.738165][ T3613] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[   51.765397][ T3613] device hsr_slave_0 entered promiscuous mode
[   51.772537][ T3613] device hsr_slave_1 entered promiscuous mode
[   51.850807][ T3613] netdevsim netdevsim0 netdevsim0: renamed from eth0
[   51.862208][ T3613] netdevsim netdevsim0 netdevsim1: renamed from eth1
[   51.871318][ T3613] netdevsim netdevsim0 netdevsim2: renamed from eth2
[   51.880986][ T3613] netdevsim netdevsim0 netdevsim3: renamed from eth3
[   51.901902][ T3613] bridge0: port 2(bridge_slave_1) entered blocking state
[   51.909109][ T3613] bridge0: port 2(bridge_slave_1) entered forwarding state
[   51.916806][ T3613] bridge0: port 1(bridge_slave_0) entered blocking state
[   51.923992][ T3613] bridge0: port 1(bridge_slave_0) entered forwarding state
[   51.970881][ T3613] 8021q: adding VLAN 0 to HW filter on device bond0
[   51.984061][ T1135] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   51.995188][ T1135] bridge0: port 1(bridge_slave_0) entered disabled state
[   52.005564][ T1135] bridge0: port 2(bridge_slave_1) entered disabled state
[   52.015448][ T1135] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   52.028490][ T3613] 8021q: adding VLAN 0 to HW filter on device team0
[   52.047133][ T1135] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[   52.056562][ T1135] bridge0: port 1(bridge_slave_0) entered blocking state
[   52.063902][ T1135] bridge0: port 1(bridge_slave_0) entered forwarding state
[   52.071859][ T1135] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[   52.081742][ T1135] bridge0: port 2(bridge_slave_1) entered blocking state
[   52.089048][ T1135] bridge0: port 2(bridge_slave_1) entered forwarding state
[   52.111846][ T1135] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   52.121233][ T1135] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   52.154724][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   52.165539][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[   52.173979][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[   52.184672][ T3613] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[   52.207688][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[   52.218046][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[   52.231902][ T3613] 8021q: adding VLAN 0 to HW filter on device batadv0
[   52.250209][ T1135] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[   52.270572][ T3613] device veth0_vlan entered promiscuous mode
[   52.277751][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[   52.286773][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[   52.295462][ T3626] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[   52.308075][ T3613] device veth1_vlan entered promiscuous mode
[   52.329244][ T3613] device veth0_macvtap entered promiscuous mode
[   52.337113][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[   52.345621][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[   52.354282][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[   52.362746][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[   52.375280][ T3613] device veth1_macvtap entered promiscuous mode
[   52.392484][ T3613] batman_adv: batadv0: Interface activated: batadv_slave_0
[   52.400945][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[   52.414891][ T3613] batman_adv: batadv0: Interface activated: batadv_slave_1
[   52.424885][ T3613] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[   52.435013][ T3613] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[   52.444349][ T3613] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[   52.453063][ T3613] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[   52.464170][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[   52.529284][    T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   52.544181][    T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   52.556867][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   52.566660][    T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   52.575034][    T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   52.586021][ T3324] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
2021/12/29 17:11:37 building call list...
[   52.894885][ T1302] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
executing program
[   54.769427][ T3608] can: request_module (can-proto-0) failed.
[   54.791311][ T3608] can: request_module (can-proto-0) failed.
[   54.812419][ T3608] can: request_module (can-proto-0) failed.
[   55.015608][ T3608] ------------[ cut here ]------------
[   55.021212][ T3608] refcount_t: decrement hit 0; leaking memory.
[   55.028731][ T3608] WARNING: CPU: 0 PID: 3608 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0
[   55.038818][ T3608] Modules linked in:
[   55.042747][ T3608] CPU: 1 PID: 3608 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   55.051508][ T3608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.061739][ T3608] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   55.068728][ T3608] 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
[   55.088833][ T3608] RSP: 0018:ffffc90001f2fab0 EFLAGS: 00010286
[   55.094997][ T3608] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   55.102977][ T3608] RDX: ffff88801d1c9d00 RSI: ffffffff815f1e28 RDI: fffff520003e5f48
[   55.111152][ T3608] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   55.119169][ T3608] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003e5f5b
[   55.127186][ T3608] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001f2fd10
[   55.135195][ T3608] FS:  000000c00009c890(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   55.144220][ T3608] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.150856][ T3608] CR2: 0000000000efecf0 CR3: 000000001c85c000 CR4: 00000000003506e0
[   55.158996][ T3608] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   55.167366][ T3608] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   55.175401][ T3608] Call Trace:
[   55.178695][ T3608]  <TASK>
[   55.181613][ T3608]  ref_tracker_free+0x4fe/0x610
[   55.186513][ T3608]  ? ref_tracker_dir_exit+0x330/0x330
[   55.191896][ T3608]  ? bpf_sk_storage_free+0x333/0x3e0
[   55.197256][ T3608]  ? lock_downgrade+0x6e0/0x6e0
[   55.202114][ T3608]  ? kfree+0x1e1/0x560
[   55.206456][ T3608]  __sk_destruct+0x4a6/0x920
[   55.211043][ T3608]  sk_destruct+0xbd/0xe0
[   55.215550][ T3608]  __sk_free+0xef/0x3d0
[   55.219728][ T3608]  sk_free+0x78/0xa0
[   55.223795][ T3608]  __mptcp_close_ssk+0x435/0x590
[   55.228752][ T3608]  __mptcp_destroy_sock+0x35f/0x830
[   55.233992][ T3608]  ? __mptcp_close_ssk+0x590/0x590
[   55.239123][ T3608]  ? __local_bh_enable_ip+0xa0/0x120
[   55.244461][ T3608]  mptcp_close+0x5f8/0x7f0
[   55.248900][ T3608]  inet_release+0x12e/0x280
[   55.253483][ T3608]  inet6_release+0x4c/0x70
[   55.257911][ T3608]  __sock_release+0xcd/0x280
[   55.262487][ T3608]  sock_close+0x18/0x20
[   55.266689][ T3608]  __fput+0x286/0x9f0
[   55.270685][ T3608]  ? __sock_release+0x280/0x280
[   55.275700][ T3608]  task_work_run+0xdd/0x1a0
[   55.280243][ T3608]  exit_to_user_mode_prepare+0x27e/0x290
[   55.285938][ T3608]  syscall_exit_to_user_mode+0x19/0x60
[   55.291414][ T3608]  do_syscall_64+0x42/0xb0
[   55.295904][ T3608]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   55.301819][ T3608] RIP: 0033:0x4b12db
[   55.305802][ T3608] 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
[   55.325648][ T3608] RSP: 002b:000000c0002bf4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   55.334163][ T3608] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db
[   55.342137][ T3608] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   55.350181][ T3608] RBP: 000000c0002bf530 R08: 0000000000f0e801 R09: 00007fffb6f0d080
[   55.358222][ T3608] R10: 00007fffb6f0d090 R11: 0000000000000206 R12: 000000000000000c
[   55.366313][ T3608] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c000578000
[   55.374471][ T3608]  </TASK>
[   55.377575][ T3608] Kernel panic - not syncing: panic_on_warn set ...
[   55.384150][ T3608] CPU: 1 PID: 3608 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0
[   55.392752][ T3608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.402880][ T3608] Call Trace:
[   55.406145][ T3608]  <TASK>
[   55.409062][ T3608]  dump_stack_lvl+0xcd/0x134
[   55.413645][ T3608]  panic+0x2b0/0x6dd
[   55.417527][ T3608]  ? __warn_printk+0xf3/0xf3
[   55.422126][ T3608]  ? __warn.cold+0x1a/0x44
[   55.426537][ T3608]  ? refcount_warn_saturate+0xbf/0x1e0
[   55.431980][ T3608]  __warn.cold+0x35/0x44
[   55.436223][ T3608]  ? wake_up_klogd.part.0+0x8e/0xd0
[   55.441430][ T3608]  ? refcount_warn_saturate+0xbf/0x1e0
[   55.446973][ T3608]  report_bug+0x1bd/0x210
[   55.451311][ T3608]  handle_bug+0x3c/0x60
[   55.455450][ T3608]  exc_invalid_op+0x14/0x40
[   55.459936][ T3608]  asm_exc_invalid_op+0x12/0x20
[   55.464771][ T3608] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0
[   55.470820][ T3608] 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
[   55.490409][ T3608] RSP: 0018:ffffc90001f2fab0 EFLAGS: 00010286
[   55.496458][ T3608] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   55.504422][ T3608] RDX: ffff88801d1c9d00 RSI: ffffffff815f1e28 RDI: fffff520003e5f48
[   55.512373][ T3608] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
[   55.520326][ T3608] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003e5f5b
[   55.528283][ T3608] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001f2fd10
[   55.536241][ T3608]  ? wake_up_klogd.part.0+0x8e/0xd0
[   55.541433][ T3608]  ? vprintk+0x88/0x90
[   55.545749][ T3608]  ref_tracker_free+0x4fe/0x610
[   55.550593][ T3608]  ? ref_tracker_dir_exit+0x330/0x330
[   55.555948][ T3608]  ? bpf_sk_storage_free+0x333/0x3e0
[   55.561220][ T3608]  ? lock_downgrade+0x6e0/0x6e0
[   55.566054][ T3608]  ? kfree+0x1e1/0x560
[   55.570121][ T3608]  __sk_destruct+0x4a6/0x920
[   55.574701][ T3608]  sk_destruct+0xbd/0xe0
[   55.578931][ T3608]  __sk_free+0xef/0x3d0
[   55.583160][ T3608]  sk_free+0x78/0xa0
[   55.587055][ T3608]  __mptcp_close_ssk+0x435/0x590
[   55.591983][ T3608]  __mptcp_destroy_sock+0x35f/0x830
[   55.597165][ T3608]  ? __mptcp_close_ssk+0x590/0x590
[   55.602261][ T3608]  ? __local_bh_enable_ip+0xa0/0x120
[   55.607535][ T3608]  mptcp_close+0x5f8/0x7f0
[   55.611940][ T3608]  inet_release+0x12e/0x280
[   55.616431][ T3608]  inet6_release+0x4c/0x70
[   55.620836][ T3608]  __sock_release+0xcd/0x280
[   55.625415][ T3608]  sock_close+0x18/0x20
[   55.629557][ T3608]  __fput+0x286/0x9f0
[   55.633529][ T3608]  ? __sock_release+0x280/0x280
[   55.638367][ T3608]  task_work_run+0xdd/0x1a0
[   55.642859][ T3608]  exit_to_user_mode_prepare+0x27e/0x290
[   55.648479][ T3608]  syscall_exit_to_user_mode+0x19/0x60
[   55.653942][ T3608]  do_syscall_64+0x42/0xb0
[   55.658430][ T3608]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   55.664322][ T3608] RIP: 0033:0x4b12db
[   55.668234][ T3608] 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
[   55.687829][ T3608] RSP: 002b:000000c0002bf4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003
[   55.696225][ T3608] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db
[   55.704180][ T3608] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[   55.712138][ T3608] RBP: 000000c0002bf530 R08: 0000000000f0e801 R09: 00007fffb6f0d080
[   55.722349][ T3608] R10: 00007fffb6f0d090 R11: 0000000000000206 R12: 000000000000000c
[   55.730308][ T3608] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c000578000
[   55.738275][ T3608]  </TASK>
[   55.741710][ T3608] Kernel Offset: disabled
[   55.746271][ T3608] Rebooting in 86400 seconds..