DUID 00:04:99:cf:64:81:91:3a:f8:b3:88:a8:0e:05:2a:78:8a:13 forked to background, child pid 3181 [ 29.189542][ T3182] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.203279][ T3182] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.43' (ECDSA) to the list of known hosts. 2021/12/14 23:02:44 fuzzer started 2021/12/14 23:02:45 connecting to host at 10.128.0.169:32979 2021/12/14 23:02:45 checking machine... 2021/12/14 23:02:45 checking revisions... 2021/12/14 23:02:45 testing simple program... syzkaller login: [ 50.185454][ T3602] cgroup: Unknown subsys name 'net' [ 50.288815][ T3602] cgroup: Unknown subsys name 'rlimit' [ 51.516840][ T3605] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.524758][ T3605] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.532234][ T3605] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.540213][ T3605] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.547817][ T3605] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.555074][ T3605] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.639420][ T3604] chnl_net:caif_netlink_parms(): no params data found [ 51.682184][ T3604] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.689675][ T3604] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.697795][ T3604] device bridge_slave_0 entered promiscuous mode [ 51.706568][ T3604] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.713827][ T3604] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.721718][ T3604] device bridge_slave_1 entered promiscuous mode [ 51.742120][ T3604] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.752950][ T3604] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.776956][ T3604] team0: Port device team_slave_0 added [ 51.784138][ T3604] team0: Port device team_slave_1 added [ 51.801196][ T3604] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.808423][ T3604] 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. [ 51.834610][ T3604] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.848358][ T3604] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.855295][ T3604] 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. [ 51.881831][ T3604] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.907423][ T3604] device hsr_slave_0 entered promiscuous mode [ 51.914603][ T3604] device hsr_slave_1 entered promiscuous mode [ 51.993762][ T3604] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.004075][ T3604] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.013295][ T3604] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.022446][ T3604] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.042946][ T3604] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.050226][ T3604] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.057792][ T3604] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.064853][ T3604] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.110313][ T3604] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.121953][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.132641][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.141285][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.150708][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.163230][ T3604] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.174226][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.183093][ T141] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.190168][ T141] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.201579][ T3613] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.210147][ T3613] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.217223][ T3613] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.239734][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.255626][ T3604] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 52.266392][ T3604] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 52.280113][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.288328][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.297127][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.305681][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.315073][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 52.330308][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 52.337767][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 52.351139][ T3604] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.367542][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 52.385292][ T3604] device veth0_vlan entered promiscuous mode [ 52.393421][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 52.401804][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 52.410159][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 52.423820][ T3604] device veth1_vlan entered promiscuous mode [ 52.440931][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 52.449585][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 52.457938][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 52.469228][ T3604] device veth0_macvtap entered promiscuous mode [ 52.478644][ T3604] device veth1_macvtap entered promiscuous mode [ 52.494906][ T3604] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.502601][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 52.511993][ T3615] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 52.523144][ T3604] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.531941][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 52.542966][ T3604] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.551945][ T3604] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.560944][ T3604] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.569949][ T3604] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.629459][ T972] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.645135][ T972] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.650221][ T54] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 52.656573][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 52.660963][ T54] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 52.675723][ T3613] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/12/14 23:02:47 building call list... [ 52.922865][ T972] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 54.859936][ T3601] can: request_module (can-proto-0) failed. [ 54.882453][ T3601] can: request_module (can-proto-0) failed. [ 54.902924][ T3601] can: request_module (can-proto-0) failed. [ 55.097779][ T3601] ------------[ cut here ]------------ [ 55.103442][ T3601] refcount_t: decrement hit 0; leaking memory. [ 55.110487][ T3601] WARNING: CPU: 0 PID: 3601 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 [ 55.120468][ T3601] Modules linked in: [ 55.124432][ T3601] CPU: 1 PID: 3601 Comm: syz-fuzzer Not tainted 5.16.0-rc5-next-20211214-syzkaller #0 [ 55.134439][ T3601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.144880][ T3601] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 55.151483][ T3601] Code: 1d 06 e6 95 09 31 ff 89 de e8 4d f8 8f fd 84 db 75 e0 e8 64 f4 8f fd 48 c7 c7 a0 4d 05 8a c6 05 e6 e5 95 09 01 e8 26 ac 28 05 <0f> 0b eb c4 e8 48 f4 8f fd 0f b6 1d d5 e5 95 09 31 ff 89 de e8 18 [ 55.171422][ T3601] RSP: 0018:ffffc900027dfab8 EFLAGS: 00010282 [ 55.177709][ T3601] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.185700][ T3601] RDX: ffff88801f7b57c0 RSI: ffffffff815f4648 RDI: fffff520004fbf49 [ 55.194173][ T3601] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 55.202333][ T3601] R10: ffffffff815ee3ae R11: 0000000000000000 R12: 1ffff920004fbf5c [ 55.210458][ T3601] R13: 00000000ffffffef R14: ffffffff8d309554 R15: ffffc900027dfd10 [ 55.218563][ T3601] FS: 000000c0002e6090(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 55.227620][ T3601] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.234207][ T3601] CR2: 00007f374900b300 CR3: 0000000072481000 CR4: 00000000003506f0 [ 55.242821][ T3601] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.250911][ T3601] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.259127][ T3601] Call Trace: [ 55.262409][ T3601] [ 55.265328][ T3601] ref_tracker_free+0x4fe/0x610 [ 55.270278][ T3601] ? ref_tracker_dir_exit+0x330/0x330 [ 55.275659][ T3601] ? bpf_sk_storage_free+0x333/0x3e0 [ 55.281071][ T3601] ? lock_downgrade+0x6e0/0x6e0 [ 55.285940][ T3601] ? kfree+0x1ea/0x4b0 [ 55.290332][ T3601] __sk_destruct+0x3cd/0x710 [ 55.294933][ T3601] sk_destruct+0xbd/0xe0 [ 55.299336][ T3601] __sk_free+0xef/0x3d0 [ 55.303514][ T3601] sk_free+0x78/0xa0 [ 55.307694][ T3601] __mptcp_close_ssk+0x435/0x590 [ 55.312659][ T3601] __mptcp_destroy_sock+0x35f/0x830 [ 55.318525][ T3601] ? __mptcp_close_ssk+0x590/0x590 [ 55.323666][ T3601] ? __local_bh_enable_ip+0xa0/0x120 [ 55.329127][ T3601] mptcp_close+0x5f8/0x7f0 [ 55.333569][ T3601] inet_release+0x12e/0x280 [ 55.338146][ T3601] inet6_release+0x4c/0x70 [ 55.342581][ T3601] __sock_release+0xcd/0x280 [ 55.347644][ T3601] sock_close+0x18/0x20 [ 55.351838][ T3601] __fput+0x286/0x9f0 [ 55.355821][ T3601] ? __sock_release+0x280/0x280 [ 55.362558][ T3601] task_work_run+0xdd/0x1a0 [ 55.367235][ T3601] exit_to_user_mode_prepare+0x27e/0x290 [ 55.372900][ T3601] syscall_exit_to_user_mode+0x19/0x60 [ 55.378777][ T3601] do_syscall_64+0x42/0xb0 [ 55.383217][ T3601] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.389430][ T3601] RIP: 0033:0x4b12db [ 55.393318][ T3601] 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 [ 55.413296][ T3601] RSP: 002b:000000c00018d4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 55.421938][ T3601] RAX: 0000000000000000 RBX: 000000c00001e000 RCX: 00000000004b12db [ 55.430303][ T3601] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 55.438683][ T3601] RBP: 000000c00018d530 R08: 0000000000f0ae01 R09: 00007ffdfdb59080 [ 55.446927][ T3601] R10: 00007ffdfdb59090 R11: 0000000000000206 R12: 000000000000000b [ 55.455022][ T3601] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0000925a0 [ 55.463268][ T3601] [ 55.466280][ T3601] Kernel panic - not syncing: panic_on_warn set ... [ 55.472852][ T3601] CPU: 0 PID: 3601 Comm: syz-fuzzer Not tainted 5.16.0-rc5-next-20211214-syzkaller #0 [ 55.482466][ T3601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.492535][ T3601] Call Trace: [ 55.495801][ T3601] [ 55.498717][ T3601] dump_stack_lvl+0xcd/0x134 [ 55.503312][ T3601] panic+0x2b0/0x6dd [ 55.507199][ T3601] ? __warn_printk+0xf3/0xf3 [ 55.511796][ T3601] ? __warn.cold+0x1d1/0x2cf [ 55.516905][ T3601] ? refcount_warn_saturate+0xbf/0x1e0 [ 55.522378][ T3601] __warn.cold+0x1ec/0x2cf [ 55.526786][ T3601] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 55.533029][ T3601] ? refcount_warn_saturate+0xbf/0x1e0 [ 55.538479][ T3601] report_bug+0x1bd/0x210 [ 55.542803][ T3601] handle_bug+0x3c/0x60 [ 55.546950][ T3601] exc_invalid_op+0x14/0x40 [ 55.551472][ T3601] asm_exc_invalid_op+0x12/0x20 [ 55.556334][ T3601] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 55.562406][ T3601] Code: 1d 06 e6 95 09 31 ff 89 de e8 4d f8 8f fd 84 db 75 e0 e8 64 f4 8f fd 48 c7 c7 a0 4d 05 8a c6 05 e6 e5 95 09 01 e8 26 ac 28 05 <0f> 0b eb c4 e8 48 f4 8f fd 0f b6 1d d5 e5 95 09 31 ff 89 de e8 18 [ 55.582011][ T3601] RSP: 0018:ffffc900027dfab8 EFLAGS: 00010282 [ 55.588080][ T3601] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 55.596047][ T3601] RDX: ffff88801f7b57c0 RSI: ffffffff815f4648 RDI: fffff520004fbf49 [ 55.604013][ T3601] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 55.611978][ T3601] R10: ffffffff815ee3ae R11: 0000000000000000 R12: 1ffff920004fbf5c [ 55.619943][ T3601] R13: 00000000ffffffef R14: ffffffff8d309554 R15: ffffc900027dfd10 [ 55.627917][ T3601] ? wake_up_klogd.part.0+0x8e/0xd0 [ 55.633122][ T3601] ? vprintk+0x88/0x90 [ 55.637196][ T3601] ? refcount_warn_saturate+0xbf/0x1e0 [ 55.642663][ T3601] ref_tracker_free+0x4fe/0x610 [ 55.647514][ T3601] ? ref_tracker_dir_exit+0x330/0x330 [ 55.652880][ T3601] ? bpf_sk_storage_free+0x333/0x3e0 [ 55.658174][ T3601] ? lock_downgrade+0x6e0/0x6e0 [ 55.663030][ T3601] ? kfree+0x1ea/0x4b0 [ 55.667138][ T3601] __sk_destruct+0x3cd/0x710 [ 55.671954][ T3601] sk_destruct+0xbd/0xe0 [ 55.676213][ T3601] __sk_free+0xef/0x3d0 [ 55.680380][ T3601] sk_free+0x78/0xa0 [ 55.684285][ T3601] __mptcp_close_ssk+0x435/0x590 [ 55.689244][ T3601] __mptcp_destroy_sock+0x35f/0x830 [ 55.694461][ T3601] ? __mptcp_close_ssk+0x590/0x590 [ 55.699594][ T3601] ? __local_bh_enable_ip+0xa0/0x120 [ 55.704898][ T3601] mptcp_close+0x5f8/0x7f0 [ 55.709334][ T3601] inet_release+0x12e/0x280 [ 55.713849][ T3601] inet6_release+0x4c/0x70 [ 55.718285][ T3601] __sock_release+0xcd/0x280 [ 55.722884][ T3601] sock_close+0x18/0x20 [ 55.727046][ T3601] __fput+0x286/0x9f0 [ 55.731045][ T3601] ? __sock_release+0x280/0x280 [ 55.735995][ T3601] task_work_run+0xdd/0x1a0 [ 55.740507][ T3601] exit_to_user_mode_prepare+0x27e/0x290 [ 55.746151][ T3601] syscall_exit_to_user_mode+0x19/0x60 [ 55.751619][ T3601] do_syscall_64+0x42/0xb0 [ 55.756034][ T3601] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.761939][ T3601] RIP: 0033:0x4b12db [ 55.765828][ T3601] 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 [ 55.785443][ T3601] RSP: 002b:000000c00018d4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 55.793854][ T3601] RAX: 0000000000000000 RBX: 000000c00001e000 RCX: 00000000004b12db [ 55.801817][ T3601] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 55.809781][ T3601] RBP: 000000c00018d530 R08: 0000000000f0ae01 R09: 00007ffdfdb59080 [ 55.818181][ T3601] R10: 00007ffdfdb59090 R11: 0000000000000206 R12: 000000000000000b [ 55.826153][ T3601] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0000925a0 [ 55.834138][ T3601] [ 55.837614][ T3601] Kernel Offset: disabled [ 55.842014][ T3601] Rebooting in 86400 seconds..