Warning: Permanently added '10.128.0.28' (ECDSA) to the list of known hosts. 2023/03/15 11:44:21 fuzzer started 2023/03/15 11:44:21 connecting to host at 10.128.0.169:33003 2023/03/15 11:44:21 checking machine... 2023/03/15 11:44:21 checking revisions... 2023/03/15 11:44:21 testing simple program... syzkaller login: [ 60.262573][ T5086] cgroup: Unknown subsys name 'net' [ 60.421594][ T5086] cgroup: Unknown subsys name 'rlimit' [ 60.557172][ T5085] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5085 'syz-fuzzer' [ 60.684795][ T5091] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.693513][ T5091] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.702101][ T5091] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.710829][ T5091] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.718554][ T5091] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.726179][ T5091] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 60.866458][ T5088] chnl_net:caif_netlink_parms(): no params data found [ 60.893867][ T5088] [ 60.896240][ T5088] ============================= [ 60.901182][ T5088] WARNING: suspicious RCU usage [ 60.906081][ T5088] 6.3.0-rc2-next-20230315-syzkaller #0 Not tainted [ 60.912769][ T5088] ----------------------------- [ 60.917649][ T5088] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 60.925959][ T5088] [ 60.925959][ T5088] other info that might help us debug this: [ 60.925959][ T5088] [ 60.936335][ T5088] [ 60.936335][ T5088] rcu_scheduler_active = 2, debug_locks = 1 [ 60.944555][ T5088] 1 lock held by syz-executor.0/5088: [ 60.950078][ T5088] #0: ffffffff8e10a2c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 60.959586][ T5088] [ 60.959586][ T5088] stack backtrace: [ 60.965552][ T5088] CPU: 1 PID: 5088 Comm: syz-executor.0 Not tainted 6.3.0-rc2-next-20230315-syzkaller #0 [ 60.975393][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 60.985479][ T5088] Call Trace: [ 60.988775][ T5088] [ 60.991714][ T5088] dump_stack_lvl+0x136/0x150 [ 60.996434][ T5088] lockdep_rcu_suspicious+0x208/0x3a0 [ 61.001845][ T5088] veth_set_xdp_features+0x1c7/0x250 [ 61.007177][ T5088] veth_newlink+0x729/0x9d0 [ 61.011719][ T5088] ? veth_set_features+0x1e0/0x1e0 [ 61.016854][ T5088] ? __rtnl_newlink+0xfd4/0x1840 [ 61.021804][ T5088] ? rtnl_newlink+0x68/0xa0 [ 61.026315][ T5088] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 61.031430][ T5088] ? netlink_rcv_skb+0x165/0x440 [ 61.036627][ T5088] ? netlink_unicast+0x547/0x7f0 [ 61.041631][ T5088] ? netlink_sendmsg+0x925/0xe30 [ 61.047040][ T5088] ? sock_sendmsg+0xde/0x190 [ 61.051910][ T5088] ? __sys_sendto+0x23a/0x340 [ 61.056616][ T5088] ? __x64_sys_sendto+0xe1/0x1b0 [ 61.061580][ T5088] ? do_syscall_64+0x39/0xb0 [ 61.066373][ T5088] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.072965][ T5088] ? find_held_lock+0x2d/0x110 [ 61.077799][ T5088] ? __kmem_cache_alloc_node+0x48/0x320 [ 61.083590][ T5088] ? kvmalloc_node+0xa2/0x1a0 [ 61.088322][ T5088] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.093987][ T5088] ? trace_kmalloc+0xae/0x100 [ 61.099048][ T5088] ? __kmalloc_node+0x77/0xd0 [ 61.103968][ T5088] ? __xdp_rxq_info_reg+0x18d/0x340 [ 61.109594][ T5088] ? alloc_netdev_mqs+0xdce/0x1250 [ 61.115232][ T5088] ? rtnl_create_link+0x9d8/0xee0 [ 61.120834][ T5088] ? veth_set_features+0x1e0/0x1e0 [ 61.126005][ T5088] __rtnl_newlink+0x10c2/0x1840 [ 61.132456][ T5088] ? find_held_lock+0x2d/0x110 [ 61.138277][ T5088] ? rtnl_link_unregister+0x250/0x250 [ 61.143701][ T5088] ? __kmem_cache_alloc_node+0x48/0x320 [ 61.149511][ T5088] rtnl_newlink+0x68/0xa0 [ 61.153886][ T5088] ? __rtnl_newlink+0x1840/0x1840 [ 61.158975][ T5088] rtnetlink_rcv_msg+0x43d/0xd50 [ 61.163977][ T5088] ? rtnl_stats_set+0x4d0/0x4d0 [ 61.168862][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 61.175102][ T5088] ? lock_downgrade+0x690/0x690 [ 61.180079][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 61.186214][ T5088] netlink_rcv_skb+0x165/0x440 [ 61.191036][ T5088] ? rtnl_stats_set+0x4d0/0x4d0 [ 61.196039][ T5088] ? netlink_ack+0x1360/0x1360 [ 61.200954][ T5088] ? netlink_deliver_tap+0x1b1/0xcf0 [ 61.206591][ T5088] netlink_unicast+0x547/0x7f0 [ 61.211424][ T5088] ? netlink_attachskb+0x890/0x890 [ 61.216584][ T5088] ? __virt_addr_valid+0x61/0x2e0 [ 61.221650][ T5088] ? __phys_addr_symbol+0x30/0x70 [ 61.226703][ T5088] ? __check_object_size+0x333/0x6e0 [ 61.232180][ T5088] netlink_sendmsg+0x925/0xe30 [ 61.236987][ T5088] ? netlink_unicast+0x7f0/0x7f0 [ 61.241939][ T5088] ? __might_fault+0xb2/0x190 [ 61.246687][ T5088] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 61.252129][ T5088] ? netlink_unicast+0x7f0/0x7f0 [ 61.257124][ T5088] sock_sendmsg+0xde/0x190 [ 61.261578][ T5088] __sys_sendto+0x23a/0x340 [ 61.266163][ T5088] ? __ia32_sys_getpeername+0xb0/0xb0 [ 61.271802][ T5088] ? xfd_validate_state+0x5d/0x180 [ 61.277254][ T5088] __x64_sys_sendto+0xe1/0x1b0 [ 61.282056][ T5088] ? syscall_enter_from_user_mode+0x26/0xb0 [ 61.288018][ T5088] do_syscall_64+0x39/0xb0 [ 61.292647][ T5088] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.298612][ T5088] RIP: 0033:0x7f6dd4e3e12c [ 61.303080][ T5088] Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b [ 61.322846][ T5088] RSP: 002b:00007ffd5366b7c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 61.331495][ T5088] RAX: ffffffffffffffda RBX: 00007f6dd5ad4620 RCX: 00007f6dd4e3e12c [ 61.339514][ T5088] RDX: 000000000000002c RSI: 00007f6dd5ad4670 RDI: 0000000000000003 [ 61.347773][ T5088] RBP: 0000000000000000 R08: 00007ffd5366b814 R09: 000000000000000c [ 61.355771][ T5088] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 61.363760][ T5088] R13: 00007f6dd5ad4670 R14: 0000000000000003 R15: 0000000000000000 [ 61.371876][ T5088] [ 61.407530][ T5088] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.415645][ T5088] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.423427][ T5088] bridge_slave_0: entered allmulticast mode [ 61.431712][ T5088] bridge_slave_0: entered promiscuous mode [ 61.441302][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.449045][ T5088] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.457588][ T5088] bridge_slave_1: entered allmulticast mode [ 61.464647][ T5088] bridge_slave_1: entered promiscuous mode [ 61.488357][ T5088] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.501536][ T5088] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.525929][ T5088] team0: Port device team_slave_0 added [ 61.533539][ T5088] team0: Port device team_slave_1 added [ 61.555270][ T5088] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.562322][ T5088] 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. [ 61.588523][ T5088] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.602624][ T5088] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.609706][ T5088] 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. [ 61.636194][ T5088] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.667847][ T5088] hsr_slave_0: entered promiscuous mode [ 61.675115][ T5088] hsr_slave_1: entered promiscuous mode [ 61.767495][ T5088] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.778367][ T5088] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.787957][ T5088] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.797681][ T5088] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.821081][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.828481][ T5088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.836479][ T5088] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.843853][ T5088] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.861855][ T4747] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.871067][ T4747] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.913714][ T5088] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.925865][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.934965][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.948720][ T5088] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.958946][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.968579][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.977307][ T1115] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.984601][ T1115] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.996421][ T4747] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.005881][ T4747] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.014501][ T4747] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.021724][ T4747] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.034445][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.048898][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.058615][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.068097][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.084920][ T5088] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 62.095709][ T5088] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.108630][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.116818][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.125515][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.134054][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.142596][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.151870][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.161496][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.170230][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.311735][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.320917][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.333143][ T5088] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.349749][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 62.359408][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 62.378575][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 62.387081][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 62.396569][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 62.404786][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 62.414362][ T5088] veth0_vlan: entered promiscuous mode [ 62.428079][ T5088] veth1_vlan: entered promiscuous mode [ 62.448544][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 62.457283][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 62.465647][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 62.474425][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 62.485694][ T5088] veth0_macvtap: entered promiscuous mode [ 62.496868][ T5088] veth1_macvtap: entered promiscuous mode [ 62.512382][ T5088] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 62.521041][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 62.531908][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 62.539994][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 62.548760][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 62.561472][ T5088] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.571145][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.580122][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.592105][ T5088] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.603334][ T5088] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.613800][ T5088] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.623415][ T5088] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.693724][ T961] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.707580][ T961] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.722973][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.732855][ T961] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.742114][ T961] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.751716][ T1115] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2023/03/15 11:44:24 building call list... [ 62.821497][ T5091] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 64.831697][ T5083] damon-dbgfs: DAMON debugfs interface is deprecated, so users should move to DAMON_SYSFS. If you cannot, please report your usecase to damon@lists.linux.dev and linux-mm@kvack.org. [ 65.000038][ T5083] can: request_module (can-proto-0) failed. [ 65.039414][ T5083] can: request_module (can-proto-0) failed. [ 65.076377][ T5083] can: request_module (can-proto-0) failed. [ 65.857635][ T961] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program