Starting Load/Save RF Kill Switch Status... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.253' (ECDSA) to the list of known hosts. 2021/05/04 00:30:12 fuzzer started 2021/05/04 00:30:13 connecting to host at 10.128.0.169:46087 2021/05/04 00:30:13 checking machine... 2021/05/04 00:30:13 checking revisions... 2021/05/04 00:30:13 testing simple program... syzkaller login: [ 75.178914][ T8447] chnl_net:caif_netlink_parms(): no params data found [ 75.256913][ T8447] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.265659][ T8447] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.275395][ T8447] device bridge_slave_0 entered promiscuous mode [ 75.286345][ T8447] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.294608][ T8447] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.304067][ T8447] device bridge_slave_1 entered promiscuous mode [ 75.329761][ T8447] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.342715][ T8447] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.369745][ T8447] team0: Port device team_slave_0 added [ 75.380028][ T8447] team0: Port device team_slave_1 added [ 75.402563][ T8447] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.410114][ T8447] 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. [ 75.439101][ T8447] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.453810][ T8447] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.464664][ T8447] 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. [ 75.494594][ T8447] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.523798][ T8447] device hsr_slave_0 entered promiscuous mode [ 75.531568][ T8447] device hsr_slave_1 entered promiscuous mode [ 75.642266][ T8447] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.657973][ T8447] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.667243][ T8447] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.679036][ T8447] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.723852][ T8447] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.731770][ T8447] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.740596][ T8447] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.748137][ T8447] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.797219][ T8447] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.812882][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.825980][ T3792] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.836927][ T3792] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.847031][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.863105][ T8447] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.875124][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.886900][ T4856] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.895246][ T4856] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.913273][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.922757][ T4856] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.931089][ T4856] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.956263][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.967167][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.976237][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.985826][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.998482][ T8447] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.012525][ T8447] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.024539][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.049600][ T8447] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.058003][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.068217][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.089805][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.111933][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.123024][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.131224][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.143367][ T8447] device veth0_vlan entered promiscuous mode [ 76.160011][ T8447] device veth1_vlan entered promiscuous mode [ 76.185328][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 76.196015][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.209295][ T8447] device veth0_macvtap entered promiscuous mode [ 76.221948][ T8447] device veth1_macvtap entered promiscuous mode [ 76.242331][ T8447] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.250095][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.261085][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 76.269804][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.280816][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.294671][ T8447] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.303132][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.312831][ T3792] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.325509][ T8447] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.336124][ T8447] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.345813][ T8447] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.355921][ T8447] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 76.462561][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.497624][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.502554][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.519807][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.535172][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.548949][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/04 00:30:16 building call list... [ 77.165700][ T9] ------------[ cut here ]------------ [ 77.172071][ T9] hook not found, pf 3 num 0 [ 77.172728][ T9] WARNING: CPU: 1 PID: 9 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.189214][ T9] Modules linked in: [ 77.193626][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 77.203560][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.215470][ T9] Workqueue: netns cleanup_net [ 77.221318][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.228693][ T9] 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 78 6d 8a e8 50 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.255532][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 77.263005][ T9] RAX: 0000000000000000 RBX: ffff888147146a00 RCX: 0000000000000000 [ 77.272644][ T9] RDX: ffff888011d88000 RSI: ffffffff815c8ba5 RDI: fffff5200019cf6a [ 77.302134][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.310601][ T9] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801a300f20 [ 77.319368][ T9] R13: 0000000000000000 R14: ffff8880220c8f00 R15: 0000000000000001 [ 77.328195][ T9] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 77.338521][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.345620][ T9] CR2: 00007fc3fb8fb000 CR3: 000000000bc8e000 CR4: 00000000001506f0 [ 77.355032][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.365659][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.375003][ T9] Call Trace: [ 77.378583][ T9] nf_unregister_net_hooks+0x117/0x160 [ 77.386496][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.393523][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 77.399225][ T9] cleanup_net+0x451/0xb10 [ 77.405053][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.411500][ T9] process_one_work+0x98d/0x1600 [ 77.416502][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.431174][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 77.436474][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 77.446498][ T9] worker_thread+0x64c/0x1120 [ 77.452065][ T9] ? process_one_work+0x1600/0x1600 [ 77.457829][ T9] kthread+0x3b1/0x4a0 [ 77.463440][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 77.469236][ T9] ret_from_fork+0x1f/0x30 [ 77.474990][ T9] Kernel panic - not syncing: panic_on_warn set ... [ 77.481803][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 77.490431][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.500868][ T9] Workqueue: netns cleanup_net [ 77.506029][ T9] Call Trace: [ 77.509328][ T9] dump_stack+0x141/0x1d7 [ 77.513689][ T9] panic+0x306/0x73d [ 77.517821][ T9] ? __warn_printk+0xf3/0xf3 [ 77.522686][ T9] ? __warn.cold+0x1a/0x44 [ 77.527331][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.533404][ T9] __warn.cold+0x35/0x44 [ 77.537889][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.543646][ T9] report_bug+0x1bd/0x210 [ 77.548214][ T9] handle_bug+0x3c/0x60 [ 77.552762][ T9] exc_invalid_op+0x14/0x40 [ 77.557407][ T9] asm_exc_invalid_op+0x12/0x20 [ 77.562699][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.569672][ T9] 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 78 6d 8a e8 50 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.591437][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 77.597893][ T9] RAX: 0000000000000000 RBX: ffff888147146a00 RCX: 0000000000000000 [ 77.606525][ T9] RDX: ffff888011d88000 RSI: ffffffff815c8ba5 RDI: fffff5200019cf6a [ 77.615192][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.623350][ T9] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801a300f20 [ 77.631430][ T9] R13: 0000000000000000 R14: ffff8880220c8f00 R15: 0000000000000001 [ 77.642131][ T9] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.648156][ T9] ? vprintk+0x95/0x260 [ 77.652886][ T9] nf_unregister_net_hooks+0x117/0x160 [ 77.658655][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.664864][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 77.670871][ T9] cleanup_net+0x451/0xb10 [ 77.675768][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.681364][ T9] process_one_work+0x98d/0x1600 [ 77.686434][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.692672][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 77.698150][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 77.703337][ T9] worker_thread+0x64c/0x1120 [ 77.708303][ T9] ? process_one_work+0x1600/0x1600 [ 77.713556][ T9] kthread+0x3b1/0x4a0 [ 77.718121][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 77.723470][ T9] ret_from_fork+0x1f/0x30 [ 77.729642][ T9] Kernel Offset: disabled [ 77.734692][ T9] Rebooting in 86400 seconds..