DUID 00:04:1b:66:36:25:cc:bb:2d:eb:42:73:ce:96:f3:b7:d0:c0 forked to background, child pid 3182 [ 32.359175][ T3183] 8021q: adding VLAN 0 to HW filter on device bond0 [ 32.372615][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.113' (ECDSA) to the list of known hosts. 2021/12/30 09:54:18 fuzzer started 2021/12/30 09:54:18 connecting to host at 10.128.0.169:38585 2021/12/30 09:54:18 checking machine... 2021/12/30 09:54:18 checking revisions... 2021/12/30 09:54:18 testing simple program... syzkaller login: [ 47.970799][ T3601] cgroup: Unknown subsys name 'net' [ 48.108719][ T3601] cgroup: Unknown subsys name 'rlimit' [ 49.386241][ T3605] chnl_net:caif_netlink_parms(): no params data found [ 49.432914][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.440484][ T3605] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.448979][ T3605] device bridge_slave_0 entered promiscuous mode [ 49.457845][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.465178][ T3605] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.472973][ T3605] device bridge_slave_1 entered promiscuous mode [ 49.494170][ T3605] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.505153][ T3605] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.528008][ T3605] team0: Port device team_slave_0 added [ 49.535287][ T3605] team0: Port device team_slave_1 added [ 49.552827][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.559900][ 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. [ 49.586380][ T3605] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.599196][ T3605] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.606226][ 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. [ 49.632777][ T3605] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.659674][ T3605] device hsr_slave_0 entered promiscuous mode [ 49.666323][ T3605] device hsr_slave_1 entered promiscuous mode [ 49.747491][ T3605] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.758922][ T3605] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.767495][ T3605] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.776722][ T3605] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.799349][ T3605] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.806912][ T3605] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.814764][ T3605] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.821918][ T3605] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.868138][ T3605] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.881509][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.891909][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.901019][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.910213][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.922469][ T3605] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.940106][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.948644][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.955703][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.963648][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.972533][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.979764][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.996208][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.005124][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.016613][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.030030][ T3616] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.041837][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.053493][ T3605] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.071321][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 50.079104][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 50.092538][ T3605] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.111293][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 50.132413][ T3605] device veth0_vlan entered promiscuous mode [ 50.140051][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 50.148748][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 50.156456][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 50.170989][ T3605] device veth1_vlan entered promiscuous mode [ 50.190712][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 50.198741][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 50.206812][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 50.218227][ T3605] device veth0_macvtap entered promiscuous mode [ 50.227625][ T3605] device veth1_macvtap entered promiscuous mode [ 50.245176][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 50.253031][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 50.262605][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 50.274237][ T3605] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 50.281926][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 50.293491][ T3605] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.302559][ T3605] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.312964][ T3605] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.322004][ T3605] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.382388][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.401107][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.411380][ T10] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.414435][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 50.429733][ T10] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.440480][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/12/30 09:54:21 building call list... [ 50.749565][ T46] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 52.731098][ T3594] can: request_module (can-proto-0) failed. [ 52.753453][ T3594] can: request_module (can-proto-0) failed. [ 52.774456][ T3594] can: request_module (can-proto-0) failed. [ 52.972233][ T3594] ------------[ cut here ]------------ [ 52.978223][ T3594] refcount_t: decrement hit 0; leaking memory. [ 52.984876][ T3594] WARNING: CPU: 0 PID: 3594 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 [ 52.994758][ T3594] Modules linked in: [ 52.999794][ T3594] CPU: 1 PID: 3594 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 53.008515][ T3594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.019258][ T3594] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 53.025353][ T3594] 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 [ 53.045938][ T3594] RSP: 0018:ffffc90001a6fab0 EFLAGS: 00010286 [ 53.053082][ T3594] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 53.061244][ T3594] RDX: ffff88801c1dba00 RSI: ffffffff815f1e28 RDI: fffff5200034df48 [ 53.069413][ T3594] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 53.077405][ T3594] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff9200034df5b [ 53.085812][ T3594] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001a6fd10 [ 53.094694][ T3594] FS: 000000c000030490(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 53.103970][ T3594] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.110701][ T3594] CR2: 0000000000efecf0 CR3: 000000007231e000 CR4: 00000000003506f0 [ 53.118783][ T3594] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.126752][ T3594] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.134777][ T3594] Call Trace: [ 53.138100][ T3594] [ 53.141025][ T3594] ref_tracker_free+0x4fe/0x610 [ 53.145876][ T3594] ? ref_tracker_dir_exit+0x330/0x330 [ 53.151440][ T3594] ? bpf_sk_storage_free+0x333/0x3e0 [ 53.156876][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 53.161809][ T3594] ? kfree+0x1e1/0x560 [ 53.165907][ T3594] __sk_destruct+0x4a6/0x920 [ 53.170618][ T3594] sk_destruct+0xbd/0xe0 [ 53.174873][ T3594] __sk_free+0xef/0x3d0 [ 53.179286][ T3594] sk_free+0x78/0xa0 [ 53.183200][ T3594] __mptcp_close_ssk+0x435/0x590 [ 53.188249][ T3594] __mptcp_destroy_sock+0x35f/0x830 [ 53.193510][ T3594] ? __mptcp_close_ssk+0x590/0x590 [ 53.198668][ T3594] ? __local_bh_enable_ip+0xa0/0x120 [ 53.204199][ T3594] mptcp_close+0x5f8/0x7f0 [ 53.208957][ T3594] inet_release+0x12e/0x280 [ 53.213491][ T3594] inet6_release+0x4c/0x70 [ 53.217978][ T3594] __sock_release+0xcd/0x280 [ 53.222670][ T3594] sock_close+0x18/0x20 [ 53.226822][ T3594] __fput+0x286/0x9f0 [ 53.230873][ T3594] ? __sock_release+0x280/0x280 [ 53.235735][ T3594] task_work_run+0xdd/0x1a0 [ 53.240380][ T3594] exit_to_user_mode_prepare+0x27e/0x290 [ 53.246135][ T3594] syscall_exit_to_user_mode+0x19/0x60 [ 53.251768][ T3594] do_syscall_64+0x42/0xb0 [ 53.256194][ T3594] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.262149][ T3594] RIP: 0033:0x4b12db [ 53.266054][ T3594] 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 [ 53.285932][ T3594] RSP: 002b:000000c0002fd4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 53.294714][ T3594] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db [ 53.303002][ T3594] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 53.311208][ T3594] RBP: 000000c0002fd530 R08: 0000000000f0e801 R09: 00007ffca74fc080 [ 53.319272][ T3594] R10: 00007ffca74fc090 R11: 0000000000000206 R12: 000000000000000e [ 53.327259][ T3594] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c000510be0 [ 53.335338][ T3594] [ 53.338817][ T3594] Kernel panic - not syncing: panic_on_warn set ... [ 53.345438][ T3594] CPU: 0 PID: 3594 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 53.353751][ T3594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.363788][ T3594] Call Trace: [ 53.367056][ T3594] [ 53.369993][ T3594] dump_stack_lvl+0xcd/0x134 [ 53.374575][ T3594] panic+0x2b0/0x6dd [ 53.378463][ T3594] ? __warn_printk+0xf3/0xf3 [ 53.383066][ T3594] ? __warn.cold+0x1a/0x44 [ 53.387484][ T3594] ? refcount_warn_saturate+0xbf/0x1e0 [ 53.393018][ T3594] __warn.cold+0x35/0x44 [ 53.397247][ T3594] ? wake_up_klogd.part.0+0x8e/0xd0 [ 53.402437][ T3594] ? refcount_warn_saturate+0xbf/0x1e0 [ 53.407943][ T3594] report_bug+0x1bd/0x210 [ 53.412274][ T3594] handle_bug+0x3c/0x60 [ 53.416414][ T3594] exc_invalid_op+0x14/0x40 [ 53.420901][ T3594] asm_exc_invalid_op+0x12/0x20 [ 53.425740][ T3594] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 53.431801][ T3594] 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 [ 53.451496][ T3594] RSP: 0018:ffffc90001a6fab0 EFLAGS: 00010286 [ 53.457574][ T3594] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 53.465625][ T3594] RDX: ffff88801c1dba00 RSI: ffffffff815f1e28 RDI: fffff5200034df48 [ 53.473594][ T3594] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 53.481555][ T3594] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff9200034df5b [ 53.489528][ T3594] R13: 00000000ffffffef R14: ffffffff8d2fdf54 R15: ffffc90001a6fd10 [ 53.497520][ T3594] ? wake_up_klogd.part.0+0x8e/0xd0 [ 53.502727][ T3594] ? vprintk+0x88/0x90 [ 53.506801][ T3594] ref_tracker_free+0x4fe/0x610 [ 53.511740][ T3594] ? ref_tracker_dir_exit+0x330/0x330 [ 53.517201][ T3594] ? bpf_sk_storage_free+0x333/0x3e0 [ 53.522517][ T3594] ? lock_downgrade+0x6e0/0x6e0 [ 53.527396][ T3594] ? kfree+0x1e1/0x560 [ 53.531479][ T3594] __sk_destruct+0x4a6/0x920 [ 53.536088][ T3594] sk_destruct+0xbd/0xe0 [ 53.540333][ T3594] __sk_free+0xef/0x3d0 [ 53.544751][ T3594] sk_free+0x78/0xa0 [ 53.548649][ T3594] __mptcp_close_ssk+0x435/0x590 [ 53.553681][ T3594] __mptcp_destroy_sock+0x35f/0x830 [ 53.558880][ T3594] ? __mptcp_close_ssk+0x590/0x590 [ 53.563996][ T3594] ? __local_bh_enable_ip+0xa0/0x120 [ 53.569293][ T3594] mptcp_close+0x5f8/0x7f0 [ 53.573716][ T3594] inet_release+0x12e/0x280 [ 53.578228][ T3594] inet6_release+0x4c/0x70 [ 53.582651][ T3594] __sock_release+0xcd/0x280 [ 53.587246][ T3594] sock_close+0x18/0x20 [ 53.591401][ T3594] __fput+0x286/0x9f0 [ 53.595416][ T3594] ? __sock_release+0x280/0x280 [ 53.600296][ T3594] task_work_run+0xdd/0x1a0 [ 53.604816][ T3594] exit_to_user_mode_prepare+0x27e/0x290 [ 53.610460][ T3594] syscall_exit_to_user_mode+0x19/0x60 [ 53.615925][ T3594] do_syscall_64+0x42/0xb0 [ 53.620342][ T3594] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 53.626239][ T3594] RIP: 0033:0x4b12db [ 53.630133][ T3594] 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 [ 53.649734][ T3594] RSP: 002b:000000c0002fd4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 53.658318][ T3594] RAX: 0000000000000000 RBX: 000000c000020800 RCX: 00000000004b12db [ 53.666288][ T3594] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 53.674256][ T3594] RBP: 000000c0002fd530 R08: 0000000000f0e801 R09: 00007ffca74fc080 [ 53.682490][ T3594] R10: 00007ffca74fc090 R11: 0000000000000206 R12: 000000000000000e [ 53.690455][ T3594] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c000510be0 [ 53.698525][ T3594] [ 53.701988][ T3594] Kernel Offset: disabled [ 53.706409][ T3594] Rebooting in 86400 seconds..