Warning: Permanently added '10.128.10.47' (ECDSA) to the list of known hosts. 2021/05/07 10:12:05 fuzzer started 2021/05/07 10:12:05 connecting to host at 10.128.0.169:39457 2021/05/07 10:12:05 checking machine... 2021/05/07 10:12:05 checking revisions... 2021/05/07 10:12:05 testing simple program... syzkaller login: [ 77.481549][ T8425] chnl_net:caif_netlink_parms(): no params data found [ 77.533418][ T8425] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.542991][ T8425] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.552319][ T8425] device bridge_slave_0 entered promiscuous mode [ 77.562221][ T8425] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.570132][ T8425] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.579265][ T8425] device bridge_slave_1 entered promiscuous mode [ 77.600630][ T8425] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.612319][ T8425] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.638041][ T8425] team0: Port device team_slave_0 added [ 77.646204][ T8425] team0: Port device team_slave_1 added [ 77.663412][ T8425] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.670613][ T8425] 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. [ 77.697366][ T8425] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.711713][ T8425] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.719234][ T8425] 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. [ 77.746123][ T8425] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.772834][ T8425] device hsr_slave_0 entered promiscuous mode [ 77.779752][ T8425] device hsr_slave_1 entered promiscuous mode [ 77.886470][ T8425] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.897966][ T8425] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.908927][ T8425] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.919798][ T8425] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.948124][ T8425] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.955333][ T8425] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.963414][ T8425] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.971300][ T8425] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.020800][ T8425] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.037598][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.049885][ T4808] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.059616][ T4808] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.068629][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.080882][ T8425] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.094685][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.104172][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.111332][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.123836][ T8646] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.132822][ T8646] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.140761][ T8646] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.164272][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.173674][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.187626][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.200307][ T8646] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.212599][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.225292][ T8425] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.244632][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.252521][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.269036][ T8425] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.289675][ T8648] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.313437][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.322681][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.332069][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.344263][ T8425] device veth0_vlan entered promiscuous mode [ 78.357945][ T8425] device veth1_vlan entered promiscuous mode [ 78.382213][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.391068][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.403088][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.417758][ T8425] device veth0_macvtap entered promiscuous mode [ 78.426990][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.438839][ T8425] device veth1_macvtap entered promiscuous mode [ 78.457577][ T8425] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.465965][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.474823][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.488890][ T8425] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.498212][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.507969][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.520962][ T8425] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.531008][ T8425] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.541291][ T8425] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.550628][ T8425] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.646894][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.679410][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.698000][ T8646] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.698483][ T486] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.725744][ T486] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.746684][ T4843] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program 2021/05/07 10:12:08 building call list... [ 79.411402][ T25] ------------[ cut here ]------------ [ 79.423631][ T25] hook not found, pf 3 num 0 [ 79.424234][ T25] WARNING: CPU: 1 PID: 25 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 79.444153][ T25] Modules linked in: [ 79.448410][ T25] CPU: 1 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 79.461963][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.472830][ T25] Workqueue: netns cleanup_net [ 79.479332][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 79.485983][ T25] 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 d8 6d 8a e8 40 4d 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 19 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 79.508204][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 79.514314][ T25] RAX: 0000000000000000 RBX: ffff88814a25d600 RCX: 0000000000000000 [ 79.523954][ T25] RDX: ffff888015561c40 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 79.534262][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 79.544978][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888016470f20 [ 79.553096][ T25] R13: 0000000000000000 R14: ffff888017feea00 R15: 0000000000000001 [ 79.569370][ T25] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 79.581173][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.588415][ T25] CR2: 000055a788997160 CR3: 00000000121f5000 CR4: 00000000001506e0 [ 79.597434][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.606370][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.614661][ T25] Call Trace: [ 79.629419][ T25] nf_unregister_net_hooks+0x117/0x160 [ 79.635776][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 79.641931][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 79.648942][ T25] cleanup_net+0x451/0xb10 [ 79.653436][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 79.659414][ T25] process_one_work+0x98d/0x1600 [ 79.664408][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.670463][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 79.676070][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 79.681262][ T25] worker_thread+0x64c/0x1120 [ 79.686679][ T25] ? process_one_work+0x1600/0x1600 [ 79.691916][ T25] kthread+0x3b1/0x4a0 [ 79.697245][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 79.702497][ T25] ret_from_fork+0x1f/0x30 [ 79.709031][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 79.715862][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 79.723968][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.734136][ T25] Workqueue: netns cleanup_net [ 79.739330][ T25] Call Trace: [ 79.742624][ T25] dump_stack+0x141/0x1d7 [ 79.746977][ T25] panic+0x306/0x73d [ 79.751047][ T25] ? __warn_printk+0xf3/0xf3 [ 79.755667][ T25] ? __warn.cold+0x1a/0x44 [ 79.760113][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 79.765852][ T25] __warn.cold+0x35/0x44 [ 79.770112][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 79.775853][ T25] report_bug+0x1bd/0x210 [ 79.780203][ T25] handle_bug+0x3c/0x60 [ 79.784475][ T25] exc_invalid_op+0x14/0x40 [ 79.789234][ T25] asm_exc_invalid_op+0x12/0x20 [ 79.794285][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 79.800722][ T25] 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 d8 6d 8a e8 40 4d 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 19 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 79.820786][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 79.827056][ T25] RAX: 0000000000000000 RBX: ffff88814a25d600 RCX: 0000000000000000 [ 79.835389][ T25] RDX: ffff888015561c40 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 79.843634][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 79.851815][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888016470f20 [ 79.859810][ T25] R13: 0000000000000000 R14: ffff888017feea00 R15: 0000000000000001 [ 79.868285][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 79.873518][ T25] ? vprintk+0x95/0x260 [ 79.877982][ T25] nf_unregister_net_hooks+0x117/0x160 [ 79.884204][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 79.890122][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 79.895685][ T25] cleanup_net+0x451/0xb10 [ 79.900231][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 79.905739][ T25] process_one_work+0x98d/0x1600 [ 79.911025][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.916518][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 79.921567][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 79.926885][ T25] worker_thread+0x64c/0x1120 [ 79.931741][ T25] ? process_one_work+0x1600/0x1600 [ 79.937240][ T25] kthread+0x3b1/0x4a0 [ 79.941326][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 79.946640][ T25] ret_from_fork+0x1f/0x30 [ 79.952866][ T25] Kernel Offset: disabled [ 79.957539][ T25] Rebooting in 86400 seconds..