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 [ 30.578619][ T3183] 8021q: adding VLAN 0 to HW filter on device bond0 [ 30.594806][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.35' (ECDSA) to the list of known hosts. 2021/12/15 07:45:15 fuzzer started 2021/12/15 07:45:15 connecting to host at 10.128.0.169:39557 2021/12/15 07:45:15 checking machine... 2021/12/15 07:45:15 checking revisions... 2021/12/15 07:45:15 testing simple program... syzkaller login: [ 47.199751][ T3609] cgroup: Unknown subsys name 'net' [ 47.336249][ T3609] cgroup: Unknown subsys name 'rlimit' [ 48.677222][ T3613] chnl_net:caif_netlink_parms(): no params data found [ 48.720597][ T3613] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.728188][ T3613] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.736280][ T3613] device bridge_slave_0 entered promiscuous mode [ 48.745269][ T3613] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.752698][ T3613] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.760582][ T3613] device bridge_slave_1 entered promiscuous mode [ 48.781699][ T3613] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.792653][ T3613] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.815384][ T3613] team0: Port device team_slave_0 added [ 48.822959][ T3613] team0: Port device team_slave_1 added [ 48.840242][ T3613] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.847187][ 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. [ 48.873413][ T3613] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.886925][ T3613] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 48.894887][ 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. [ 48.921644][ T3613] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 48.947655][ T3613] device hsr_slave_0 entered promiscuous mode [ 48.954983][ T3613] device hsr_slave_1 entered promiscuous mode [ 49.035871][ T3613] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.046716][ T3613] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.055657][ T3613] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.066111][ T3613] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.086871][ T3613] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.094069][ T3613] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.101819][ T3613] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.108870][ T3613] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.153679][ T3613] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.165620][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.176544][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.185417][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.194704][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.208167][ T3613] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.218474][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.227525][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.234694][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.245489][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.254523][ T3624] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.261745][ T3624] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.280999][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.298596][ T3613] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.309433][ T3613] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.321557][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.329995][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.338447][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.347706][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.357138][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.376899][ T3613] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.385822][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.393427][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.412229][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.431177][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.439735][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.447378][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.458249][ T3613] device veth0_vlan entered promiscuous mode [ 49.469638][ T3613] device veth1_vlan entered promiscuous mode [ 49.491672][ T3613] device veth0_macvtap entered promiscuous mode [ 49.498597][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 49.506680][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 49.514888][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.523991][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.535278][ T3613] device veth1_macvtap entered promiscuous mode [ 49.550988][ T3613] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.558415][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.573372][ T3613] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.581651][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.593255][ T3613] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.603111][ T3613] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.611908][ T3613] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.621545][ T3613] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.683545][ T90] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 49.696990][ T90] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.711330][ T3624] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 49.723200][ T966] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 49.731160][ T966] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 49.741282][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/12/15 07:45:18 building call list... [ 50.003231][ T90] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 51.984143][ T3610] can: request_module (can-proto-0) failed. [ 52.007121][ T3610] can: request_module (can-proto-0) failed. [ 52.029054][ T3610] can: request_module (can-proto-0) failed. [ 52.224758][ T3610] ------------[ cut here ]------------ [ 52.231170][ T3610] refcount_t: decrement hit 0; leaking memory. [ 52.237772][ T3610] WARNING: CPU: 0 PID: 3610 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 [ 52.247525][ T3610] Modules linked in: [ 52.251595][ T3610] CPU: 1 PID: 3610 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 52.260351][ T3610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.270559][ T3610] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 52.276916][ T3610] Code: 1d b1 99 a1 09 31 ff 89 de e8 5d 3a 9c fd 84 db 75 e0 e8 74 36 9c fd 48 c7 c7 60 00 05 8a c6 05 91 99 a1 09 01 e8 cc 4b 27 05 <0f> 0b eb c4 e8 58 36 9c fd 0f b6 1d 80 99 a1 09 31 ff 89 de e8 28 [ 52.296758][ T3610] RSP: 0018:ffffc9000275fab0 EFLAGS: 00010286 [ 52.302867][ T3610] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 52.310915][ T3610] RDX: ffff88801c1c8000 RSI: ffffffff815f1e28 RDI: fffff520004ebf48 [ 52.318884][ T3610] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 52.327043][ T3610] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920004ebf5b [ 52.335061][ T3610] R13: 00000000ffffffef R14: ffffffff8d2fcd94 R15: ffffc9000275fd10 [ 52.343467][ T3610] FS: 000000c0002d4490(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 52.352590][ T3610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.359182][ T3610] CR2: 00007fe6c4b4b300 CR3: 0000000071eb6000 CR4: 00000000003506f0 [ 52.367240][ T3610] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.375287][ T3610] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.383390][ T3610] Call Trace: [ 52.386675][ T3610] [ 52.389680][ T3610] ref_tracker_free+0x4fe/0x610 [ 52.394552][ T3610] ? ref_tracker_dir_exit+0x330/0x330 [ 52.400021][ T3610] ? bpf_sk_storage_free+0x333/0x3e0 [ 52.405321][ T3610] ? lock_downgrade+0x6e0/0x6e0 [ 52.410218][ T3610] ? kfree+0x1e1/0x560 [ 52.414304][ T3610] __sk_destruct+0x4a6/0x920 [ 52.418888][ T3610] sk_destruct+0xbd/0xe0 [ 52.423187][ T3610] __sk_free+0xef/0x3d0 [ 52.427357][ T3610] sk_free+0x78/0xa0 [ 52.431295][ T3610] __mptcp_close_ssk+0x435/0x590 [ 52.436245][ T3610] __mptcp_destroy_sock+0x35f/0x830 [ 52.441783][ T3610] ? __mptcp_close_ssk+0x590/0x590 [ 52.446933][ T3610] ? __local_bh_enable_ip+0xa0/0x120 [ 52.452306][ T3610] mptcp_close+0x5f8/0x7f0 [ 52.456741][ T3610] inet_release+0x12e/0x280 [ 52.461321][ T3610] inet6_release+0x4c/0x70 [ 52.465752][ T3610] __sock_release+0xcd/0x280 [ 52.470450][ T3610] sock_close+0x18/0x20 [ 52.474619][ T3610] __fput+0x286/0x9f0 [ 52.478591][ T3610] ? __sock_release+0x280/0x280 [ 52.483516][ T3610] task_work_run+0xdd/0x1a0 [ 52.488039][ T3610] exit_to_user_mode_prepare+0x27e/0x290 [ 52.493724][ T3610] syscall_exit_to_user_mode+0x19/0x60 [ 52.499196][ T3610] do_syscall_64+0x42/0xb0 [ 52.503670][ T3610] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.509652][ T3610] RIP: 0033:0x4b12db [ 52.513572][ T3610] 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 [ 52.533354][ T3610] RSP: 002b:000000c0001bf4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 52.541867][ T3610] RAX: 0000000000000000 RBX: 000000c00001c000 RCX: 00000000004b12db [ 52.550136][ T3610] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 52.558140][ T3610] RBP: 000000c0001bf530 R08: 0000000000f0ae01 R09: 00007ffdc4adf080 [ 52.566176][ T3610] R10: 00007ffdc4adf090 R11: 0000000000000206 R12: 0000000000000007 [ 52.574189][ T3610] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0000d7860 [ 52.582229][ T3610] [ 52.585253][ T3610] Kernel panic - not syncing: panic_on_warn set ... [ 52.591819][ T3610] CPU: 0 PID: 3610 Comm: syz-fuzzer Not tainted 5.16.0-rc4-syzkaller #0 [ 52.600126][ T3610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.610163][ T3610] Call Trace: [ 52.613425][ T3610] [ 52.616340][ T3610] dump_stack_lvl+0xcd/0x134 [ 52.621093][ T3610] panic+0x2b0/0x6dd [ 52.624975][ T3610] ? __warn_printk+0xf3/0xf3 [ 52.629563][ T3610] ? __warn.cold+0x1a/0x44 [ 52.633965][ T3610] ? refcount_warn_saturate+0xbf/0x1e0 [ 52.639415][ T3610] __warn.cold+0x35/0x44 [ 52.643646][ T3610] ? wake_up_klogd.part.0+0x8e/0xd0 [ 52.648832][ T3610] ? refcount_warn_saturate+0xbf/0x1e0 [ 52.654368][ T3610] report_bug+0x1bd/0x210 [ 52.658690][ T3610] handle_bug+0x3c/0x60 [ 52.662840][ T3610] exc_invalid_op+0x14/0x40 [ 52.667327][ T3610] asm_exc_invalid_op+0x12/0x20 [ 52.672250][ T3610] RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 [ 52.678512][ T3610] Code: 1d b1 99 a1 09 31 ff 89 de e8 5d 3a 9c fd 84 db 75 e0 e8 74 36 9c fd 48 c7 c7 60 00 05 8a c6 05 91 99 a1 09 01 e8 cc 4b 27 05 <0f> 0b eb c4 e8 58 36 9c fd 0f b6 1d 80 99 a1 09 31 ff 89 de e8 28 [ 52.698116][ T3610] RSP: 0018:ffffc9000275fab0 EFLAGS: 00010286 [ 52.704171][ T3610] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 52.712125][ T3610] RDX: ffff88801c1c8000 RSI: ffffffff815f1e28 RDI: fffff520004ebf48 [ 52.720078][ T3610] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 [ 52.728032][ T3610] R10: ffffffff815ebbce R11: 0000000000000000 R12: 1ffff920004ebf5b [ 52.735990][ T3610] R13: 00000000ffffffef R14: ffffffff8d2fcd94 R15: ffffc9000275fd10 [ 52.743960][ T3610] ? wake_up_klogd.part.0+0x8e/0xd0 [ 52.749439][ T3610] ? vprintk+0x88/0x90 [ 52.753506][ T3610] ref_tracker_free+0x4fe/0x610 [ 52.758554][ T3610] ? ref_tracker_dir_exit+0x330/0x330 [ 52.763913][ T3610] ? bpf_sk_storage_free+0x333/0x3e0 [ 52.769188][ T3610] ? lock_downgrade+0x6e0/0x6e0 [ 52.774028][ T3610] ? kfree+0x1e1/0x560 [ 52.778093][ T3610] __sk_destruct+0x4a6/0x920 [ 52.782671][ T3610] sk_destruct+0xbd/0xe0 [ 52.786901][ T3610] __sk_free+0xef/0x3d0 [ 52.791175][ T3610] sk_free+0x78/0xa0 [ 52.795056][ T3610] __mptcp_close_ssk+0x435/0x590 [ 52.799981][ T3610] __mptcp_destroy_sock+0x35f/0x830 [ 52.805164][ T3610] ? __mptcp_close_ssk+0x590/0x590 [ 52.810259][ T3610] ? __local_bh_enable_ip+0xa0/0x120 [ 52.815545][ T3610] mptcp_close+0x5f8/0x7f0 [ 52.819947][ T3610] inet_release+0x12e/0x280 [ 52.824826][ T3610] inet6_release+0x4c/0x70 [ 52.829245][ T3610] __sock_release+0xcd/0x280 [ 52.833842][ T3610] sock_close+0x18/0x20 [ 52.837994][ T3610] __fput+0x286/0x9f0 [ 52.841965][ T3610] ? __sock_release+0x280/0x280 [ 52.846805][ T3610] task_work_run+0xdd/0x1a0 [ 52.851307][ T3610] exit_to_user_mode_prepare+0x27e/0x290 [ 52.857036][ T3610] syscall_exit_to_user_mode+0x19/0x60 [ 52.862481][ T3610] do_syscall_64+0x42/0xb0 [ 52.866987][ T3610] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 52.872877][ T3610] RIP: 0033:0x4b12db [ 52.876767][ T3610] 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 [ 52.896366][ T3610] RSP: 002b:000000c0001bf4f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000003 [ 52.904764][ T3610] RAX: 0000000000000000 RBX: 000000c00001c000 RCX: 00000000004b12db [ 52.912720][ T3610] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 [ 52.920683][ T3610] RBP: 000000c0001bf530 R08: 0000000000f0ae01 R09: 00007ffdc4adf080 [ 52.928723][ T3610] R10: 00007ffdc4adf090 R11: 0000000000000206 R12: 0000000000000007 [ 52.936687][ T3610] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000c0000d7860 [ 52.944659][ T3610] [ 52.947940][ T3610] Kernel Offset: disabled [ 52.952634][ T3610] Rebooting in 86400 seconds..