Warning: Permanently added '10.128.0.186' (ECDSA) to the list of known hosts. 2021/05/06 22:08:23 fuzzer started 2021/05/06 22:08:23 connecting to host at 10.128.0.169:42677 2021/05/06 22:08:23 checking machine... 2021/05/06 22:08:23 checking revisions... 2021/05/06 22:08:23 testing simple program... syzkaller login: [ 90.011201][ T37] audit: type=1400 audit(1620338903.620:8): avc: denied { execmem } for pid=8446 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 91.482363][ T8447] chnl_net:caif_netlink_parms(): no params data found [ 91.569702][ T8447] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.577773][ T8447] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.585864][ T8447] device bridge_slave_0 entered promiscuous mode [ 91.597865][ T8447] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.605203][ T8447] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.613524][ T8447] device bridge_slave_1 entered promiscuous mode [ 91.635241][ T8447] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 91.648906][ T8447] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 91.673983][ T8447] team0: Port device team_slave_0 added [ 91.682745][ T8447] team0: Port device team_slave_1 added [ 91.703129][ T8447] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 91.710950][ 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. [ 91.738927][ T8447] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 91.752165][ T8447] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 91.760066][ 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. [ 91.787160][ T8447] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 91.819177][ T8447] device hsr_slave_0 entered promiscuous mode [ 91.826762][ T8447] device hsr_slave_1 entered promiscuous mode [ 91.948795][ T8447] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 91.961996][ T8447] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 91.973301][ T8447] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 91.983385][ T8447] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.017186][ T8447] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.024947][ T8447] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.033532][ T8447] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.041216][ T8447] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.090327][ T8447] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.107388][ T8666] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.123075][ T8666] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.134079][ T8666] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.143796][ T8666] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 92.161963][ T8447] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.174291][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.184822][ T2940] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.192688][ T2940] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.220430][ T8666] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.231762][ T8666] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.238937][ T8666] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.247455][ T8666] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.257378][ T8666] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.270119][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 92.281761][ T4834] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.296331][ T8447] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 92.310419][ T8447] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 92.329813][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.341596][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 92.350688][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 92.365041][ T8447] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 92.387752][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 92.412958][ T8447] device veth0_vlan entered promiscuous mode [ 92.421018][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 92.430228][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 92.439491][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 92.454512][ T8447] device veth1_vlan entered promiscuous mode [ 92.483139][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 92.492159][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 92.504233][ T8447] device veth0_macvtap entered promiscuous mode [ 92.516183][ T8447] device veth1_macvtap entered promiscuous mode [ 92.536014][ T8447] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 92.544736][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 92.554387][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 92.563037][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 92.572215][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 92.584819][ T8447] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 92.593890][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 92.602947][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 92.616212][ T8447] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.626380][ T8447] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 92.636607][ T8447] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.648024][ T8447] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.756241][ T233] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 92.765103][ T233] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.819941][ T4834] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 92.834555][ T160] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 92.843002][ T160] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 92.854189][ T4834] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/06 22:08:26 building call list... [ 93.565466][ T160] ------------[ cut here ]------------ [ 93.577331][ T160] hook not found, pf 3 num 0 [ 93.591789][ T160] WARNING: CPU: 1 PID: 160 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 93.606911][ T160] Modules linked in: [ 93.613377][ T160] CPU: 1 PID: 160 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 93.623091][ T160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.635630][ T160] Workqueue: netns cleanup_net [ 93.641748][ T160] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 93.650433][ T160] 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 0b 6e 8a e8 c0 39 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 27 2a fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 93.707515][ T160] RSP: 0018:ffffc90001127bc0 EFLAGS: 00010286 [ 93.713756][ T160] RAX: 0000000000000000 RBX: ffff888147b66c00 RCX: 0000000000000000 [ 93.724144][ T160] RDX: ffff8880149fe340 RSI: ffffffff815be065 RDI: fffff52000224f6a [ 93.733772][ T160] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 93.747299][ T160] R10: ffffffff815b7e9e R11: 0000000000000000 R12: ffff88802fa80f60 [ 93.757000][ T160] R13: 0000000000000000 R14: ffff88801da24700 R15: 0000000000000001 [ 93.766783][ T160] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 93.777469][ T160] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.784180][ T160] CR2: 00007f3af01e4018 CR3: 000000001946a000 CR4: 00000000001506e0 [ 93.793935][ T160] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.803241][ T160] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.812336][ T160] Call Trace: [ 93.815648][ T160] nf_unregister_net_hooks+0x117/0x160 [ 93.823547][ T160] arpt_unregister_table_pre_exit+0x67/0x80 [ 93.833226][ T160] ? arptable_filter_net_exit+0x20/0x20 [ 93.839807][ T160] cleanup_net+0x451/0xb10 [ 93.844262][ T160] ? ops_free_list.part.0+0x3d0/0x3d0 [ 93.851586][ T160] process_one_work+0x98d/0x1600 [ 93.856562][ T160] ? pwq_dec_nr_in_flight+0x320/0x320 [ 93.865375][ T160] ? rwlock_bug.part.0+0x90/0x90 [ 93.871437][ T160] ? _raw_spin_lock_irq+0x41/0x50 [ 93.876523][ T160] worker_thread+0x64c/0x1120 [ 93.887510][ T160] ? process_one_work+0x1600/0x1600 [ 93.893721][ T160] kthread+0x3b1/0x4a0 [ 93.901992][ T160] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 93.909237][ T160] ret_from_fork+0x1f/0x30 [ 93.913705][ T160] Kernel panic - not syncing: panic_on_warn set ... [ 93.920661][ T160] CPU: 1 PID: 160 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 93.929010][ T160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.939178][ T160] Workqueue: netns cleanup_net [ 93.944491][ T160] Call Trace: [ 93.948025][ T160] dump_stack+0x141/0x1d7 [ 93.952439][ T160] panic+0x306/0x73d [ 93.956329][ T160] ? __warn_printk+0xf3/0xf3 [ 93.960913][ T160] ? __warn.cold+0x1a/0x44 [ 93.965505][ T160] ? __nf_unregister_net_hook+0x1eb/0x610 [ 93.971309][ T160] __warn.cold+0x35/0x44 [ 93.975643][ T160] ? __nf_unregister_net_hook+0x1eb/0x610 [ 93.981361][ T160] report_bug+0x1bd/0x210 [ 93.985969][ T160] handle_bug+0x3c/0x60 [ 93.990134][ T160] exc_invalid_op+0x14/0x40 [ 93.994717][ T160] asm_exc_invalid_op+0x12/0x20 [ 93.999593][ T160] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 94.006538][ T160] 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 0b 6e 8a e8 c0 39 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 27 2a fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 94.026340][ T160] RSP: 0018:ffffc90001127bc0 EFLAGS: 00010286 [ 94.032568][ T160] RAX: 0000000000000000 RBX: ffff888147b66c00 RCX: 0000000000000000 [ 94.040542][ T160] RDX: ffff8880149fe340 RSI: ffffffff815be065 RDI: fffff52000224f6a [ 94.048704][ T160] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 94.056938][ T160] R10: ffffffff815b7e9e R11: 0000000000000000 R12: ffff88802fa80f60 [ 94.065023][ T160] R13: 0000000000000000 R14: ffff88801da24700 R15: 0000000000000001 [ 94.073075][ T160] ? wake_up_klogd.part.0+0x8e/0xd0 [ 94.078286][ T160] ? vprintk+0x95/0x260 [ 94.082525][ T160] nf_unregister_net_hooks+0x117/0x160 [ 94.088330][ T160] arpt_unregister_table_pre_exit+0x67/0x80 [ 94.094516][ T160] ? arptable_filter_net_exit+0x20/0x20 [ 94.100058][ T160] cleanup_net+0x451/0xb10 [ 94.104471][ T160] ? ops_free_list.part.0+0x3d0/0x3d0 [ 94.109932][ T160] process_one_work+0x98d/0x1600 [ 94.114964][ T160] ? pwq_dec_nr_in_flight+0x320/0x320 [ 94.120504][ T160] ? rwlock_bug.part.0+0x90/0x90 [ 94.125525][ T160] ? _raw_spin_lock_irq+0x41/0x50 [ 94.130634][ T160] worker_thread+0x64c/0x1120 [ 94.135307][ T160] ? process_one_work+0x1600/0x1600 [ 94.140612][ T160] kthread+0x3b1/0x4a0 [ 94.144675][ T160] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 94.150562][ T160] ret_from_fork+0x1f/0x30 [ 94.156453][ T160] Kernel Offset: disabled [ 94.161056][ T160] Rebooting in 86400 seconds..