Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.107' (ECDSA) to the list of known hosts. 2021/05/03 03:11:48 fuzzer started 2021/05/03 03:11:48 connecting to host at 10.128.0.169:42243 2021/05/03 03:11:48 checking machine... 2021/05/03 03:11:48 checking revisions... 2021/05/03 03:11:48 testing simple program... syzkaller login: [ 75.173874][ T8458] chnl_net:caif_netlink_parms(): no params data found [ 75.227547][ T8458] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.238949][ T8458] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.251519][ T8458] device bridge_slave_0 entered promiscuous mode [ 75.262534][ T8458] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.273057][ T8458] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.282427][ T8458] device bridge_slave_1 entered promiscuous mode [ 75.307071][ T8458] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.320030][ T8458] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.351414][ T8458] team0: Port device team_slave_0 added [ 75.363263][ T8458] team0: Port device team_slave_1 added [ 75.386359][ T8458] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.394401][ T8458] 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. [ 75.430843][ T8458] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.445694][ T8458] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.454536][ T8458] 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. [ 75.482290][ T8458] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.513562][ T8458] device hsr_slave_0 entered promiscuous mode [ 75.520691][ T8458] device hsr_slave_1 entered promiscuous mode [ 75.635056][ T8458] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.647597][ T8458] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.663179][ T8458] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.674531][ T8458] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.707958][ T8458] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.716112][ T8458] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.726571][ T8458] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.734868][ T8458] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.786258][ T8458] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.802987][ T4870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.816279][ T4870] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.827521][ T4870] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.837852][ T4870] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.852772][ T8458] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.866981][ T4870] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.877376][ T4870] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.885987][ T4870] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.916713][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.927422][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.939603][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.950375][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.961439][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.982276][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.991416][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.001822][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.014821][ T8458] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.037593][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.046617][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.062149][ T8458] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.085785][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.107862][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.118622][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.129024][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.143483][ T8458] device veth0_vlan entered promiscuous mode [ 76.159448][ T8458] device veth1_vlan entered promiscuous mode [ 76.186876][ T3162] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.196201][ T3162] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.207635][ T8458] device veth0_macvtap entered promiscuous mode [ 76.223344][ T8458] device veth1_macvtap entered promiscuous mode [ 76.244490][ T8458] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.253940][ T3162] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.264119][ T3162] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.273825][ T3162] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.283395][ T3162] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.295923][ T8458] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.307153][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.318325][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.331884][ T8458] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 76.343169][ T8458] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.353008][ T8458] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.362390][ T8458] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.468278][ T82] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.487714][ T82] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.511719][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.539978][ T82] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.549154][ T82] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.562534][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/03 03:11:51 building call list... [ 77.244717][ T82] ------------[ cut here ]------------ [ 77.252305][ T82] hook not found, pf 3 num 0 [ 77.269327][ T82] WARNING: CPU: 0 PID: 82 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.287801][ T82] Modules linked in: [ 77.288061][ T82] CPU: 0 PID: 82 Comm: kworker/u4:2 Not tainted 5.12.0-next-20210503-syzkaller #0 [ 77.288091][ T82] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.288111][ T82] Workqueue: netns cleanup_net [ 77.288338][ T82] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.288372][ T82] Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 11 04 00 00 8b 53 1c 89 ee 48 c7 c7 c0 4d 6e 8a e8 18 71 8a 01 <0f> 0b e9 e5 00 00 00 e8 c9 d2 2c fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.288580][ T82] RSP: 0018:ffffc9000108fbc0 EFLAGS: 00010286 [ 77.288606][ T82] RAX: 0000000000000000 RBX: ffff8881442f7500 RCX: 0000000000000000 [ 77.288623][ T82] RDX: ffff888012858000 RSI: ffffffff815cc9f5 RDI: fffff52000211f6a [ 77.288642][ T82] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.288659][ T82] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff88801af70f20 [ 77.288677][ T82] R13: 0000000000000000 R14: ffff8880259c3500 R15: 0000000000000001 [ 77.288695][ T82] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 77.288729][ T82] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.288748][ T82] CR2: 000000c000a00000 CR3: 00000000148d5000 CR4: 00000000001506e0 [ 77.288774][ T82] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.288791][ T82] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.288808][ T82] Call Trace: [ 77.288829][ T82] nf_unregister_net_hooks+0x117/0x160 [ 77.288865][ T82] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.288922][ T82] ? arptable_filter_net_exit+0x20/0x20 [ 77.288950][ T82] cleanup_net+0x451/0xb10 [ 77.288983][ T82] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.289026][ T82] process_one_work+0x98d/0x1600 [ 77.289072][ T82] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.289118][ T82] ? rwlock_bug.part.0+0x90/0x90 [ 77.289143][ T82] ? _raw_spin_lock_irq+0x41/0x50 [ 77.289184][ T82] worker_thread+0x64c/0x1120 [ 77.289232][ T82] ? process_one_work+0x1600/0x1600 [ 77.289267][ T82] kthread+0x3b1/0x4a0 [ 77.289294][ T82] ? __kthread_bind_mask+0xc0/0xc0 [ 77.289325][ T82] ret_from_fork+0x1f/0x30 [ 77.289378][ T82] Kernel panic - not syncing: panic_on_warn set ... [ 77.289389][ T82] CPU: 1 PID: 82 Comm: kworker/u4:2 Not tainted 5.12.0-next-20210503-syzkaller #0 [ 77.289414][ T82] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.289429][ T82] Workqueue: netns cleanup_net [ 77.289454][ T82] Call Trace: [ 77.289463][ T82] dump_stack+0x141/0x1d7 [ 77.289497][ T82] panic+0x306/0x73d [ 77.289528][ T82] ? __warn_printk+0xf3/0xf3 [ 77.289566][ T82] ? __warn.cold+0x1a/0x44 [ 77.289598][ T82] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.289625][ T82] __warn.cold+0x35/0x44 [ 77.289652][ T82] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.289681][ T82] report_bug+0x1bd/0x210 [ 77.289717][ T82] handle_bug+0x3c/0x60 [ 77.289747][ T82] exc_invalid_op+0x14/0x40 [ 77.289779][ T82] asm_exc_invalid_op+0x12/0x20 [ 77.289806][ T82] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.289835][ T82] Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 11 04 00 00 8b 53 1c 89 ee 48 c7 c7 c0 4d 6e 8a e8 18 71 8a 01 <0f> 0b e9 e5 00 00 00 e8 c9 d2 2c fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.289859][ T82] RSP: 0018:ffffc9000108fbc0 EFLAGS: 00010286 [ 77.289880][ T82] RAX: 0000000000000000 RBX: ffff8881442f7500 RCX: 0000000000000000 [ 77.289897][ T82] RDX: ffff888012858000 RSI: ffffffff815cc9f5 RDI: fffff52000211f6a [ 77.289914][ T82] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.289930][ T82] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff88801af70f20 [ 77.289947][ T82] R13: 0000000000000000 R14: ffff8880259c3500 R15: 0000000000000001 [ 77.289971][ T82] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.290008][ T82] ? vprintk+0x95/0x260 [ 77.290052][ T82] nf_unregister_net_hooks+0x117/0x160 [ 77.290085][ T82] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.290126][ T82] ? arptable_filter_net_exit+0x20/0x20 [ 77.290152][ T82] cleanup_net+0x451/0xb10 [ 77.290182][ T82] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.290224][ T82] process_one_work+0x98d/0x1600 [ 77.290278][ T82] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.290317][ T82] ? rwlock_bug.part.0+0x90/0x90 [ 77.290340][ T82] ? _raw_spin_lock_irq+0x41/0x50 [ 77.290380][ T82] worker_thread+0x64c/0x1120 [ 77.290427][ T82] ? process_one_work+0x1600/0x1600 [ 77.290462][ T82] kthread+0x3b1/0x4a0 [ 77.290487][ T82] ? __kthread_bind_mask+0xc0/0xc0 [ 77.290519][ T82] ret_from_fork+0x1f/0x30 [ 77.292217][ T82] Kernel Offset: disabled [ 77.800923][ T82] Rebooting in 86400 seconds..