Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.90' (ECDSA) to the list of known hosts. 2021/04/28 14:03:44 fuzzer started 2021/04/28 14:03:44 connecting to host at 10.128.0.169:43875 2021/04/28 14:03:44 checking machine... 2021/04/28 14:03:44 checking revisions... 2021/04/28 14:03:44 testing simple program... syzkaller login: [ 73.262798][ T8459] chnl_net:caif_netlink_parms(): no params data found [ 73.317570][ T8459] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.326673][ T8459] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.335695][ T8459] device bridge_slave_0 entered promiscuous mode [ 73.345642][ T8459] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.353829][ T8459] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.362790][ T8459] device bridge_slave_1 entered promiscuous mode [ 73.390650][ T8459] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.403099][ T8459] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.427442][ T8459] team0: Port device team_slave_0 added [ 73.435738][ T8459] team0: Port device team_slave_1 added [ 73.455248][ T8459] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.462230][ T8459] 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. [ 73.490086][ T8459] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.505048][ T8459] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.512253][ T8459] 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. [ 73.539401][ T8459] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.566817][ T8459] device hsr_slave_0 entered promiscuous mode [ 73.575204][ T8459] device hsr_slave_1 entered promiscuous mode [ 73.677631][ T8459] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.688588][ T8459] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.700579][ T8459] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.710504][ T8459] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.737674][ T8459] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.745261][ T8459] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.753338][ T8459] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.760473][ T8459] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.806173][ T8459] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.821053][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.832789][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.842139][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.851331][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.866132][ T8459] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.877679][ T8680] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.887242][ T8680] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.894483][ T8680] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.907581][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.916291][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.923504][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.943757][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.953585][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.974497][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.983301][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.992789][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.006350][ T8459] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.025699][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.033226][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.048893][ T8459] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.069405][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.090870][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.100407][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.109266][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.121473][ T8459] device veth0_vlan entered promiscuous mode [ 74.134173][ T8459] device veth1_vlan entered promiscuous mode [ 74.156432][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.166091][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.175615][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.187948][ T8459] device veth0_macvtap entered promiscuous mode [ 74.199045][ T8459] device veth1_macvtap entered promiscuous mode [ 74.217073][ T8459] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.226897][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.238144][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.251222][ T8459] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.259929][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.269008][ T8679] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.281614][ T8459] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.291736][ T8459] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.305809][ T8459] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.314889][ T8459] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.427956][ T8416] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.439218][ T8416] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.466323][ T3890] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 74.483662][ T8416] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.493686][ T8416] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.507510][ T3890] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/04/28 14:03:47 building call list... [ 75.169390][ T191] ------------[ cut here ]------------ [ 75.185201][ T191] hook not found, pf 3 num 0 [ 75.185846][ T191] WARNING: CPU: 1 PID: 191 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 75.214247][ T191] Modules linked in: [ 75.218202][ T191] CPU: 1 PID: 191 Comm: kworker/u4:4 Not tainted 5.12.0-next-20210428-syzkaller #0 [ 75.233927][ T191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.245407][ T191] Workqueue: netns cleanup_net [ 75.252950][ T191] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 75.267974][ T191] 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 c8 62 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 04 2d fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 75.290766][ T191] RSP: 0000:ffffc900016dfbc0 EFLAGS: 00010286 [ 75.299219][ T191] RAX: 0000000000000000 RBX: ffff888144521600 RCX: 0000000000000000 [ 75.311445][ T191] RDX: ffff888012c3d580 RSI: ffffffff815cc9f5 RDI: fffff520002dbf6a [ 75.321700][ T191] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 75.332575][ T191] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff888033d58f20 [ 75.342970][ T191] R13: 0000000000000000 R14: ffff88801f05ed00 R15: 0000000000000001 [ 75.352236][ T191] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 75.362314][ T191] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.370519][ T191] CR2: 00007f78715c4000 CR3: 0000000013ec4000 CR4: 00000000001506e0 [ 75.379766][ T191] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.389120][ T191] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.398155][ T191] Call Trace: [ 75.401473][ T191] nf_unregister_net_hooks+0x117/0x160 [ 75.409237][ T191] arpt_unregister_table_pre_exit+0x67/0x80 [ 75.418311][ T191] ? arptable_filter_net_exit+0x20/0x20 [ 75.426044][ T191] cleanup_net+0x451/0xb10 [ 75.431338][ T191] ? ops_free_list.part.0+0x3d0/0x3d0 [ 75.438402][ T191] process_one_work+0x98d/0x1600 [ 75.444920][ T191] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.450536][ T191] ? rwlock_bug.part.0+0x90/0x90 [ 75.457175][ T191] ? _raw_spin_lock_irq+0x41/0x50 [ 75.462337][ T191] worker_thread+0x64c/0x1120 [ 75.469846][ T191] ? __kthread_parkme+0x13f/0x1e0 [ 75.476033][ T191] ? process_one_work+0x1600/0x1600 [ 75.481281][ T191] kthread+0x3b1/0x4a0 [ 75.487062][ T191] ? __kthread_bind_mask+0xc0/0xc0 [ 75.492635][ T191] ret_from_fork+0x1f/0x30 [ 75.501088][ T191] Kernel panic - not syncing: panic_on_warn set ... [ 75.507987][ T191] CPU: 1 PID: 191 Comm: kworker/u4:4 Not tainted 5.12.0-next-20210428-syzkaller #0 [ 75.517655][ T191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.527805][ T191] Workqueue: netns cleanup_net [ 75.532572][ T191] Call Trace: [ 75.536032][ T191] dump_stack+0x141/0x1d7 [ 75.540366][ T191] panic+0x306/0x73d [ 75.544257][ T191] ? __warn_printk+0xf3/0xf3 [ 75.548867][ T191] ? __warn.cold+0x1a/0x44 [ 75.553291][ T191] ? __nf_unregister_net_hook+0x1eb/0x610 [ 75.559024][ T191] __warn.cold+0x35/0x44 [ 75.563631][ T191] ? __nf_unregister_net_hook+0x1eb/0x610 [ 75.569453][ T191] report_bug+0x1bd/0x210 [ 75.573784][ T191] handle_bug+0x3c/0x60 [ 75.577937][ T191] exc_invalid_op+0x14/0x40 [ 75.582524][ T191] asm_exc_invalid_op+0x12/0x20 [ 75.587468][ T191] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 75.593891][ T191] 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 c8 62 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 04 2d fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 75.613568][ T191] RSP: 0000:ffffc900016dfbc0 EFLAGS: 00010286 [ 75.619635][ T191] RAX: 0000000000000000 RBX: ffff888144521600 RCX: 0000000000000000 [ 75.627603][ T191] RDX: ffff888012c3d580 RSI: ffffffff815cc9f5 RDI: fffff520002dbf6a [ 75.635658][ T191] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 75.643709][ T191] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff888033d58f20 [ 75.651779][ T191] R13: 0000000000000000 R14: ffff88801f05ed00 R15: 0000000000000001 [ 75.659749][ T191] ? wake_up_klogd.part.0+0x8e/0xd0 [ 75.664955][ T191] ? vprintk+0x95/0x260 [ 75.669206][ T191] nf_unregister_net_hooks+0x117/0x160 [ 75.674752][ T191] arpt_unregister_table_pre_exit+0x67/0x80 [ 75.680759][ T191] ? arptable_filter_net_exit+0x20/0x20 [ 75.686515][ T191] cleanup_net+0x451/0xb10 [ 75.691001][ T191] ? ops_free_list.part.0+0x3d0/0x3d0 [ 75.696569][ T191] process_one_work+0x98d/0x1600 [ 75.701607][ T191] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.707067][ T191] ? rwlock_bug.part.0+0x90/0x90 [ 75.712085][ T191] ? _raw_spin_lock_irq+0x41/0x50 [ 75.717112][ T191] worker_thread+0x64c/0x1120 [ 75.721796][ T191] ? __kthread_parkme+0x13f/0x1e0 [ 75.727004][ T191] ? process_one_work+0x1600/0x1600 [ 75.732289][ T191] kthread+0x3b1/0x4a0 [ 75.738295][ T191] ? __kthread_bind_mask+0xc0/0xc0 [ 75.743422][ T191] ret_from_fork+0x1f/0x30 [ 75.749318][ T191] Kernel Offset: disabled [ 75.753976][ T191] Rebooting in 86400 seconds..