Warning: Permanently added '10.128.0.176' (ECDSA) to the list of known hosts. 2021/12/29 12:10:51 fuzzer started 2021/12/29 12:10:51 connecting to host at 10.128.0.169:38745 2021/12/29 12:10:51 checking machine... 2021/12/29 12:10:51 checking revisions... 2021/12/29 12:10:51 testing simple program... syzkaller login: [ 50.866014][ T3603] cgroup: Unknown subsys name 'net' [ 50.997093][ T3603] cgroup: Unknown subsys name 'rlimit' [ 52.285008][ T3605] chnl_net:caif_netlink_parms(): no params data found [ 52.329319][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.337088][ T3605] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.345318][ T3605] device bridge_slave_0 entered promiscuous mode [ 52.355015][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.362518][ T3605] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.370787][ T3605] device bridge_slave_1 entered promiscuous mode [ 52.392282][ T3605] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.403350][ T3605] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.425718][ T3605] team0: Port device team_slave_0 added [ 52.442482][ T3605] team0: Port device team_slave_1 added [ 52.465981][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.473420][ 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. [ 52.499682][ T3605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.513922][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.521063][ 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. [ 52.547751][ T3605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.586967][ T3605] device hsr_slave_0 entered promiscuous mode [ 52.594051][ T3605] device hsr_slave_1 entered promiscuous mode [ 52.693752][ T3605] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.705294][ T3605] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.714436][ T3605] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.724030][ T3605] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.745673][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.752889][ T3605] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.760857][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.768016][ T3605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.816675][ T3605] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.828367][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.838903][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.848801][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.857614][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.871212][ T3605] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.883110][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.893113][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.900203][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.912063][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.920830][ T20] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.928082][ T20] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.947328][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.956274][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.967424][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.980217][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.992227][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.004194][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.022600][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.031524][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.043947][ T3605] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.061787][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.079211][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.088729][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.096953][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.108895][ T3605] device veth0_vlan entered promiscuous mode [ 53.120930][ T3605] device veth1_vlan entered promiscuous mode [ 53.141032][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.149003][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.157570][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.168199][ T3605] device veth0_macvtap entered promiscuous mode [ 53.177520][ T3605] device veth1_macvtap entered promiscuous mode [ 53.195459][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.203210][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.213229][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.225189][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.233581][ T1134] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.245665][ T3605] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.255410][ T3605] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.264522][ T3605] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.273556][ T3605] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.340409][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.348522][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.361453][ T3617] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 53.383287][ T44] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.393295][ T44] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.403137][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/12/29 12:10:54 building call list... [ 53.652758][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 55.589167][ T3599] can: request_module (can-proto-0) failed. [ 55.611962][ T3599] can: request_module (can-proto-0) failed. [ 55.633130][ T3599] can: request_module (can-proto-0) failed. [ 55.828249][ T3599] ------------[ cut here ]------------ [ 55.833946][ T3599] refcount_t: decrement hit 0; leaking memory. [ 55.841278][ T3599] WARNING: CPU: 1 PID: 3599 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 [ 55.851564][ T3599] Modules linked in: [ 55.855824][ T3599] CPU: 0 PID: 3599 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 55.864467][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.875717][ T3599] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 55.881939][ 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 [ 55.901650][ T3599] RSP: 0018:ffffc90001f3fab0 EFLAGS: 00010286 [ 55.907741][ T3599] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.916824][ T3599] RDX: ffff88801d22ba00 RSI: ffffffff815f1e28 RDI: fffff520003e7f48 [ 55.924906][ T3599] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 55.933089][ T3599] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003e7f5b [ 55.941235][ T3599] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001f3fd10 [ 55.950117][ T3599] FS: 000000c000031090(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 55.959179][ T3599] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.965931][ T3599] CR2: 00007f8df2442300 CR3: 000000001ee8e000 CR4: 00000000003506e0 [ 55.974553][ T3599] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.982569][ T3599] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.990746][ T3599] Call Trace: [ 55.994026][ T3599] [ 55.996943][ T3599] ref_tracker_free+0x4fe/0x610 [ 56.002035][ T3599] ? ref_tracker_dir_exit+0x330/0x330 [ 56.007513][ T3599] ? bpf_sk_storage_free+0x333/0x3e0 [ 56.012886][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 56.017929][ T3599] ? kfree+0x1e1/0x560 [ 56.022079][ T3599] __sk_destruct+0x4a6/0x920 [ 56.026683][ T3599] sk_destruct+0xbd/0xe0 [ 56.030958][ T3599] __sk_free+0xef/0x3d0 [ 56.035123][ T3599] sk_free+0x78/0xa0 [ 56.039097][ T3599] __mptcp_close_ssk+0x435/0x590 [ 56.044088][ T3599] __mptcp_destroy_sock+0x35f/0x830 [ 56.049311][ T3599] ? __mptcp_close_ssk+0x590/0x590 [ 56.054699][ T3599] ? __local_bh_enable_ip+0xa0/0x120 [ 56.060624][ T3599] mptcp_close+0x5f8/0x7f0 [ 56.065072][ T3599] inet_release+0x12e/0x280 [ 56.069806][ T3599] inet6_release+0x4c/0x70 [ 56.074303][ T3599] __sock_release+0xcd/0x280 [ 56.078889][ T3599] sock_close+0x18/0x20 [ 56.083103][ T3599] __fput+0x286/0x9f0 [ 56.087136][ T3599] ? __sock_release+0x280/0x280 [ 56.092032][ T3599] task_work_run+0xdd/0x1a0 [ 56.096547][ T3599] exit_to_user_mode_prepare+0x27e/0x290 [ 56.102231][ T3599] syscall_exit_to_user_mode+0x19/0x60 [ 56.107724][ T3599] do_syscall_64+0x42/0xb0 [ 56.112177][ T3599] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.118080][ T3599] RIP: 0033:0x4b12db [ 56.122149][ 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 [ 56.141810][ T3599] RSP: 002b:000000c0004c34f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 56.150260][ T3599] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db [ 56.158670][ T3599] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 56.166717][ T3599] RBP: 000000c0004c3530 R08: 0000000000f0e801 R09: 00007ffdc1bb3080 [ 56.174834][ T3599] R10: 00007ffdc1bb3090 R11: 0000000000000206 R12: 000000000000000b [ 56.182895][ T3599] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0000a7360 [ 56.190929][ T3599] [ 56.193955][ T3599] Kernel panic - not syncing: panic_on_warn set ... [ 56.200706][ T3599] CPU: 1 PID: 3599 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 56.209138][ T3599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.219197][ T3599] Call Trace: [ 56.222464][ T3599] [ 56.225379][ T3599] dump_stack_lvl+0xcd/0x134 [ 56.229978][ T3599] panic+0x2b0/0x6dd [ 56.233880][ T3599] ? __warn_printk+0xf3/0xf3 [ 56.238479][ T3599] ? __warn.cold+0x1a/0x44 [ 56.242898][ T3599] ? refcount_warn_saturate+0xbf/0x1e0 [ 56.248349][ T3599] __warn.cold+0x35/0x44 [ 56.252584][ T3599] ? wake_up_klogd.part.0+0x8e/0xd0 [ 56.257810][ T3599] ? refcount_warn_saturate+0xbf/0x1e0 [ 56.263281][ T3599] report_bug+0x1bd/0x210 [ 56.267656][ T3599] handle_bug+0x3c/0x60 [ 56.271813][ T3599] exc_invalid_op+0x14/0x40 [ 56.276301][ T3599] asm_exc_invalid_op+0x12/0x20 [ 56.281224][ T3599] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 56.287291][ 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 [ 56.308112][ T3599] RSP: 0018:ffffc90001f3fab0 EFLAGS: 00010286 [ 56.314196][ T3599] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 56.322344][ T3599] RDX: ffff88801d22ba00 RSI: ffffffff815f1e28 RDI: fffff520003e7f48 [ 56.330603][ T3599] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 56.338772][ T3599] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920003e7f5b [ 56.346946][ T3599] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001f3fd10 [ 56.355979][ T3599] ? wake_up_klogd.part.0+0x8e/0xd0 [ 56.361802][ T3599] ? vprintk+0x88/0x90 [ 56.365919][ T3599] ref_tracker_free+0x4fe/0x610 [ 56.370952][ T3599] ? ref_tracker_dir_exit+0x330/0x330 [ 56.376418][ T3599] ? bpf_sk_storage_free+0x333/0x3e0 [ 56.382159][ T3599] ? lock_downgrade+0x6e0/0x6e0 [ 56.387300][ T3599] ? kfree+0x1e1/0x560 [ 56.391467][ T3599] __sk_destruct+0x4a6/0x920 [ 56.396083][ T3599] sk_destruct+0xbd/0xe0 [ 56.400366][ T3599] __sk_free+0xef/0x3d0 [ 56.404528][ T3599] sk_free+0x78/0xa0 [ 56.408437][ T3599] __mptcp_close_ssk+0x435/0x590 [ 56.413385][ T3599] __mptcp_destroy_sock+0x35f/0x830 [ 56.418616][ T3599] ? __mptcp_close_ssk+0x590/0x590 [ 56.423965][ T3599] ? __local_bh_enable_ip+0xa0/0x120 [ 56.429291][ T3599] mptcp_close+0x5f8/0x7f0 [ 56.433818][ T3599] inet_release+0x12e/0x280 [ 56.438339][ T3599] inet6_release+0x4c/0x70 [ 56.442765][ T3599] __sock_release+0xcd/0x280 [ 56.447727][ T3599] sock_close+0x18/0x20 [ 56.451889][ T3599] __fput+0x286/0x9f0 [ 56.456323][ T3599] ? __sock_release+0x280/0x280 [ 56.461266][ T3599] task_work_run+0xdd/0x1a0 [ 56.465792][ T3599] exit_to_user_mode_prepare+0x27e/0x290 [ 56.471861][ T3599] syscall_exit_to_user_mode+0x19/0x60 [ 56.477336][ T3599] do_syscall_64+0x42/0xb0 [ 56.481767][ T3599] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.487670][ T3599] RIP: 0033:0x4b12db [ 56.491661][ 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 [ 56.511444][ T3599] RSP: 002b:000000c0004c34f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 56.519859][ T3599] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db [ 56.527839][ T3599] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 56.535812][ T3599] RBP: 000000c0004c3530 R08: 0000000000f0e801 R09: 00007ffdc1bb3080 [ 56.543868][ T3599] R10: 00007ffdc1bb3090 R11: 0000000000000206 R12: 000000000000000b [ 56.551836][ T3599] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0000a7360 [ 56.559913][ T3599] [ 56.563310][ T3599] Kernel Offset: disabled [ 56.567727][ T3599] Rebooting in 86400 seconds..