Warning: Permanently added '10.128.0.130' (ECDSA) to the list of known hosts. 2021/12/20 19:39:30 fuzzer started 2021/12/20 19:39:30 connecting to host at 10.128.0.169:33821 2021/12/20 19:39:30 checking machine... 2021/12/20 19:39:30 checking revisions... 2021/12/20 19:39:30 testing simple program... syzkaller login: [ 50.410430][ T3605] cgroup: Unknown subsys name 'net' [ 50.534204][ T3605] cgroup: Unknown subsys name 'rlimit' [ 51.842651][ T3607] chnl_net:caif_netlink_parms(): no params data found [ 51.887568][ T3607] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.895193][ T3607] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.903037][ T3607] device bridge_slave_0 entered promiscuous mode [ 51.912249][ T3607] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.920068][ T3607] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.928206][ T3607] device bridge_slave_1 entered promiscuous mode [ 51.949309][ T3607] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.961007][ T3607] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.985980][ T3607] team0: Port device team_slave_0 added [ 51.993513][ T3607] team0: Port device team_slave_1 added [ 52.011376][ T3607] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.018626][ T3607] 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. [ 52.045360][ T3607] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.058579][ T3607] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.065607][ T3607] 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. [ 52.092778][ T3607] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.119753][ T3607] device hsr_slave_0 entered promiscuous mode [ 52.127637][ T3607] device hsr_slave_1 entered promiscuous mode [ 52.209406][ T3607] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.221162][ T3607] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.230561][ T3607] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.239409][ T3607] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.261173][ T3607] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.268465][ T3607] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.276192][ T3607] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.283280][ T3607] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.330866][ T3607] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.343550][ T1739] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.353979][ T1739] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.363638][ T1739] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.372039][ T1739] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.388725][ T3607] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.402201][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.412705][ T922] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.420527][ T922] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.449122][ T1146] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.458129][ T1146] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.465259][ T1146] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.496393][ T1739] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.507575][ T1739] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.516674][ T1739] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.535910][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.545404][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.556296][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.584116][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.593005][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.606884][ T3607] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.624508][ T1739] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.643116][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.652860][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.661149][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.672479][ T3607] device veth0_vlan entered promiscuous mode [ 52.684854][ T3607] device veth1_vlan entered promiscuous mode [ 52.704692][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.713198][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.722642][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.733526][ T3607] device veth0_macvtap entered promiscuous mode [ 52.744083][ T3607] device veth1_macvtap entered promiscuous mode [ 52.760579][ T3607] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.768720][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.783988][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.796623][ T3607] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.806297][ T922] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.816744][ T3607] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.827314][ T3607] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.836289][ T3607] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.845854][ T3607] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.911294][ T50] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.920767][ T50] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.934035][ T1739] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.956390][ T50] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.964854][ T50] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.976408][ T1146] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/12/20 19:39:33 building call list... executing program [ 53.249400][ T973] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.202017][ T3595] can: request_module (can-proto-0) failed. [ 55.225069][ T3595] can: request_module (can-proto-0) failed. [ 55.246931][ T3595] can: request_module (can-proto-0) failed. [ 55.443346][ T3595] ------------[ cut here ]------------ [ 55.450367][ T3595] refcount_t: decrement hit 0; leaking memory. [ 55.457279][ T3595] WARNING: CPU: 0 PID: 3595 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 [ 55.467327][ T3595] Modules linked in: [ 55.471419][ T3595] CPU: 0 PID: 3595 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 55.480477][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.490785][ T3595] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 55.497204][ T3595] 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 [ 55.518399][ T3595] RSP: 0018:ffffc90001acfab0 EFLAGS: 00010286 [ 55.525609][ T3595] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.533622][ T3595] RDX: ffff8880779cd700 RSI: ffffffff815f1e28 RDI: fffff52000359f48 [ 55.542260][ T3595] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000001 [ 55.550729][ T3595] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000359f5b [ 55.559254][ T3595] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001acfd10 [ 55.567534][ T3595] FS: 000000000186e830(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 55.576958][ T3595] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.583647][ T3595] CR2: 0000000000efe470 CR3: 0000000018b6c000 CR4: 00000000003506f0 [ 55.592257][ T3595] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.601276][ T3595] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.609317][ T3595] Call Trace: [ 55.612628][ T3595] [ 55.615970][ T3595] ref_tracker_free+0x4fe/0x610 [ 55.620858][ T3595] ? ref_tracker_dir_exit+0x330/0x330 [ 55.626534][ T3595] ? bpf_sk_storage_free+0x333/0x3e0 [ 55.631926][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 55.637435][ T3595] ? kfree+0x1e1/0x560 [ 55.641540][ T3595] __sk_destruct+0x4a6/0x920 [ 55.646481][ T3595] sk_destruct+0xbd/0xe0 [ 55.650777][ T3595] __sk_free+0xef/0x3d0 [ 55.655135][ T3595] sk_free+0x78/0xa0 [ 55.659103][ T3595] __mptcp_close_ssk+0x435/0x590 [ 55.664138][ T3595] __mptcp_destroy_sock+0x35f/0x830 [ 55.669586][ T3595] ? __mptcp_close_ssk+0x590/0x590 [ 55.675139][ T3595] ? __local_bh_enable_ip+0xa0/0x120 [ 55.680458][ T3595] mptcp_close+0x5f8/0x7f0 [ 55.684942][ T3595] inet_release+0x12e/0x280 [ 55.689462][ T3595] inet6_release+0x4c/0x70 [ 55.694113][ T3595] __sock_release+0xcd/0x280 [ 55.698822][ T3595] sock_close+0x18/0x20 [ 55.703015][ T3595] __fput+0x286/0x9f0 [ 55.707111][ T3595] ? __sock_release+0x280/0x280 [ 55.711996][ T3595] task_work_run+0xdd/0x1a0 [ 55.716707][ T3595] exit_to_user_mode_prepare+0x27e/0x290 [ 55.722398][ T3595] syscall_exit_to_user_mode+0x19/0x60 [ 55.728101][ T3595] do_syscall_64+0x42/0xb0 [ 55.732645][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.739512][ T3595] RIP: 0033:0x4b12db [ 55.743526][ T3595] 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 [ 55.764547][ T3595] RSP: 002b:000000c0000e14f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 55.773089][ T3595] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db [ 55.782286][ T3595] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 55.790350][ T3595] RBP: 000000c0000e1530 R08: 0000000000f0e001 R09: 00007ffc855fa080 [ 55.798634][ T3595] R10: 00007ffc855fa090 R11: 0000000000000206 R12: 000000000000000b [ 55.806954][ T3595] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c00019dc20 [ 55.815813][ T3595] [ 55.819013][ T3595] Kernel panic - not syncing: panic_on_warn set ... [ 55.825856][ T3595] CPU: 1 PID: 3595 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 55.834455][ T3595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.844755][ T3595] Call Trace: [ 55.848040][ T3595] [ 55.851323][ T3595] dump_stack_lvl+0xcd/0x134 [ 55.856320][ T3595] panic+0x2b0/0x6dd [ 55.860224][ T3595] ? __warn_printk+0xf3/0xf3 [ 55.864831][ T3595] ? __warn.cold+0x1a/0x44 [ 55.869716][ T3595] ? refcount_warn_saturate+0xbf/0x1e0 [ 55.875454][ T3595] __warn.cold+0x35/0x44 [ 55.879914][ T3595] ? wake_up_klogd.part.0+0x8e/0xd0 [ 55.885464][ T3595] ? refcount_warn_saturate+0xbf/0x1e0 [ 55.890939][ T3595] report_bug+0x1bd/0x210 [ 55.895279][ T3595] handle_bug+0x3c/0x60 [ 55.899651][ T3595] exc_invalid_op+0x14/0x40 [ 55.904145][ T3595] asm_exc_invalid_op+0x12/0x20 [ 55.908990][ T3595] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 55.915167][ T3595] 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 [ 55.935408][ T3595] RSP: 0018:ffffc90001acfab0 EFLAGS: 00010286 [ 55.941568][ T3595] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.949722][ T3595] RDX: ffff8880779cd700 RSI: ffffffff815f1e28 RDI: fffff52000359f48 [ 55.958145][ T3595] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000001 [ 55.966124][ T3595] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff92000359f5b [ 55.974099][ T3595] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001acfd10 [ 55.982084][ T3595] ? wake_up_klogd.part.0+0x8e/0xd0 [ 55.987369][ T3595] ? vprintk+0x88/0x90 [ 55.991553][ T3595] ref_tracker_free+0x4fe/0x610 [ 55.996527][ T3595] ? ref_tracker_dir_exit+0x330/0x330 [ 56.002109][ T3595] ? bpf_sk_storage_free+0x333/0x3e0 [ 56.007506][ T3595] ? lock_downgrade+0x6e0/0x6e0 [ 56.012370][ T3595] ? kfree+0x1e1/0x560 [ 56.016540][ T3595] __sk_destruct+0x4a6/0x920 [ 56.021135][ T3595] sk_destruct+0xbd/0xe0 [ 56.025393][ T3595] __sk_free+0xef/0x3d0 [ 56.029680][ T3595] sk_free+0x78/0xa0 [ 56.033586][ T3595] __mptcp_close_ssk+0x435/0x590 [ 56.038556][ T3595] __mptcp_destroy_sock+0x35f/0x830 [ 56.044065][ T3595] ? __mptcp_close_ssk+0x590/0x590 [ 56.050226][ T3595] ? __local_bh_enable_ip+0xa0/0x120 [ 56.055790][ T3595] mptcp_close+0x5f8/0x7f0 [ 56.060411][ T3595] inet_release+0x12e/0x280 [ 56.065031][ T3595] inet6_release+0x4c/0x70 [ 56.069535][ T3595] __sock_release+0xcd/0x280 [ 56.074130][ T3595] sock_close+0x18/0x20 [ 56.078289][ T3595] __fput+0x286/0x9f0 [ 56.082286][ T3595] ? __sock_release+0x280/0x280 [ 56.087338][ T3595] task_work_run+0xdd/0x1a0 [ 56.091849][ T3595] exit_to_user_mode_prepare+0x27e/0x290 [ 56.097681][ T3595] syscall_exit_to_user_mode+0x19/0x60 [ 56.103229][ T3595] do_syscall_64+0x42/0xb0 [ 56.108176][ T3595] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.114105][ T3595] RIP: 0033:0x4b12db [ 56.118128][ T3595] 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 [ 56.138131][ T3595] RSP: 002b:000000c0000e14f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 56.146563][ T3595] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db [ 56.154727][ T3595] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 56.162813][ T3595] RBP: 000000c0000e1530 R08: 0000000000f0e001 R09: 00007ffc855fa080 [ 56.171091][ T3595] R10: 00007ffc855fa090 R11: 0000000000000206 R12: 000000000000000b [ 56.179169][ T3595] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c00019dc20 [ 56.187437][ T3595] [ 56.191376][ T3595] Kernel Offset: disabled [ 56.195891][ T3595] Rebooting in 86400 seconds..