Warning: Permanently added '10.128.0.158' (ECDSA) to the list of known hosts. 2023/03/14 00:55:46 fuzzer started 2023/03/14 00:55:46 connecting to host at 10.128.0.169:42513 2023/03/14 00:55:46 checking machine... 2023/03/14 00:55:46 checking revisions... 2023/03/14 00:55:46 testing simple program... syzkaller login: [ 62.252506][ T5091] cgroup: Unknown subsys name 'net' [ 62.351026][ T5091] cgroup: Unknown subsys name 'rlimit' [ 62.461334][ T5082] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5082 'syz-fuzzer' [ 62.581821][ T48] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 62.590197][ T48] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 62.598381][ T48] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 62.606467][ T48] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 62.615008][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 62.622411][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 62.745377][ T5093] chnl_net:caif_netlink_parms(): no params data found [ 62.769943][ T5093] [ 62.772549][ T5093] ============================= [ 62.779223][ T5093] WARNING: suspicious RCU usage [ 62.784987][ T5093] 6.3.0-rc1-syzkaller-00150-g512dd354718b #0 Not tainted [ 62.792335][ T5093] ----------------------------- [ 62.797380][ T5093] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 62.806332][ T5093] [ 62.806332][ T5093] other info that might help us debug this: [ 62.806332][ T5093] [ 62.817080][ T5093] [ 62.817080][ T5093] rcu_scheduler_active = 2, debug_locks = 1 [ 62.825246][ T5093] 1 lock held by syz-executor.0/5093: [ 62.830631][ T5093] #0: ffffffff8e102ec8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 62.840205][ T5093] [ 62.840205][ T5093] stack backtrace: [ 62.846288][ T5093] CPU: 0 PID: 5093 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller-00150-g512dd354718b #0 [ 62.857619][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 62.868131][ T5093] Call Trace: [ 62.871512][ T5093] [ 62.874455][ T5093] dump_stack_lvl+0x136/0x150 [ 62.879255][ T5093] lockdep_rcu_suspicious+0x208/0x3a0 [ 62.884748][ T5093] veth_set_xdp_features+0x1c7/0x250 [ 62.890163][ T5093] veth_newlink+0x729/0x9d0 [ 62.894740][ T5093] ? veth_set_features+0x1e0/0x1e0 [ 62.899877][ T5093] ? __rtnl_newlink+0xfd4/0x1840 [ 62.904924][ T5093] ? rtnl_newlink+0x68/0xa0 [ 62.909571][ T5093] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 62.914714][ T5093] ? netlink_rcv_skb+0x165/0x440 [ 62.919667][ T5093] ? netlink_unicast+0x547/0x7f0 [ 62.924638][ T5093] ? netlink_sendmsg+0x925/0xe30 [ 62.929880][ T5093] ? sock_sendmsg+0xde/0x190 [ 62.934587][ T5093] ? __sys_sendto+0x23a/0x340 [ 62.939289][ T5093] ? __x64_sys_sendto+0xe1/0x1b0 [ 62.944248][ T5093] ? do_syscall_64+0x39/0xb0 [ 62.948899][ T5093] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.955007][ T5093] ? find_held_lock+0x2d/0x110 [ 62.959813][ T5093] ? __kmem_cache_alloc_node+0x48/0x320 [ 62.965671][ T5093] ? kvmalloc_node+0xa2/0x1a0 [ 62.970723][ T5093] ? rcu_read_lock_sched_held+0x3e/0x70 [ 62.976654][ T5093] ? trace_kmalloc+0xb4/0x110 [ 62.981351][ T5093] ? __kmalloc_node+0x77/0xd0 [ 62.986756][ T5093] ? __xdp_rxq_info_reg+0x18d/0x340 [ 62.991976][ T5093] ? alloc_netdev_mqs+0xdce/0x1250 [ 62.997199][ T5093] ? rtnl_create_link+0x9d8/0xee0 [ 63.002255][ T5093] ? veth_set_features+0x1e0/0x1e0 [ 63.007393][ T5093] __rtnl_newlink+0x10c2/0x1840 [ 63.012281][ T5093] ? find_held_lock+0x2d/0x110 [ 63.017249][ T5093] ? rtnl_link_unregister+0x250/0x250 [ 63.022689][ T5093] ? __kmem_cache_alloc_node+0x48/0x320 [ 63.028386][ T5093] rtnl_newlink+0x68/0xa0 [ 63.032823][ T5093] ? __rtnl_newlink+0x1840/0x1840 [ 63.038224][ T5093] rtnetlink_rcv_msg+0x43d/0xd50 [ 63.043487][ T5093] ? rtnl_stats_set+0x4d0/0x4d0 [ 63.048548][ T5093] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.054574][ T5093] ? do_syscall_64+0x39/0xb0 [ 63.059438][ T5093] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.065533][ T5093] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.071690][ T5093] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.077778][ T5093] netlink_rcv_skb+0x165/0x440 [ 63.082647][ T5093] ? rtnl_stats_set+0x4d0/0x4d0 [ 63.087601][ T5093] ? netlink_ack+0x1360/0x1360 [ 63.092580][ T5093] ? netlink_deliver_tap+0x1b1/0xcf0 [ 63.097887][ T5093] netlink_unicast+0x547/0x7f0 [ 63.102672][ T5093] ? netlink_attachskb+0x890/0x890 [ 63.107968][ T5093] ? __virt_addr_valid+0x61/0x2e0 [ 63.113009][ T5093] ? __phys_addr_symbol+0x30/0x70 [ 63.118135][ T5093] ? __check_object_size+0x333/0x6e0 [ 63.123523][ T5093] netlink_sendmsg+0x925/0xe30 [ 63.128312][ T5093] ? netlink_unicast+0x7f0/0x7f0 [ 63.133356][ T5093] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 63.138943][ T5093] ? netlink_unicast+0x7f0/0x7f0 [ 63.144020][ T5093] sock_sendmsg+0xde/0x190 [ 63.148465][ T5093] __sys_sendto+0x23a/0x340 [ 63.153166][ T5093] ? __ia32_sys_getpeername+0xb0/0xb0 [ 63.158681][ T5093] ? restore_fpregs_from_fpstate+0xc1/0x1c0 [ 63.164698][ T5093] __x64_sys_sendto+0xe1/0x1b0 [ 63.169483][ T5093] ? syscall_enter_from_user_mode+0x26/0xb0 [ 63.175566][ T5093] do_syscall_64+0x39/0xb0 [ 63.180021][ T5093] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.186391][ T5093] RIP: 0033:0x7fc5eb63e12c [ 63.190900][ T5093] 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 [ 63.210826][ T5093] RSP: 002b:00007fff531ddb10 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 63.219277][ T5093] RAX: ffffffffffffffda RBX: 00007fc5ec2d4620 RCX: 00007fc5eb63e12c [ 63.227362][ T5093] RDX: 000000000000002c RSI: 00007fc5ec2d4670 RDI: 0000000000000003 [ 63.236221][ T5093] RBP: 0000000000000000 R08: 00007fff531ddb64 R09: 000000000000000c [ 63.244222][ T5093] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 63.252420][ T5093] R13: 00007fc5ec2d4670 R14: 0000000000000003 R15: 0000000000000000 [ 63.260550][ T5093] [ 63.293985][ T5093] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.302342][ T5093] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.310577][ T5093] bridge_slave_0: entered allmulticast mode [ 63.317789][ T5093] bridge_slave_0: entered promiscuous mode [ 63.327810][ T5093] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.335319][ T5093] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.342636][ T5093] bridge_slave_1: entered allmulticast mode [ 63.349547][ T5093] bridge_slave_1: entered promiscuous mode [ 63.375767][ T5093] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.387828][ T5093] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.413667][ T5093] team0: Port device team_slave_0 added [ 63.422118][ T5093] team0: Port device team_slave_1 added [ 63.443477][ T5093] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.450473][ T5093] 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. [ 63.477130][ T5093] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.490539][ T5093] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.497736][ T5093] 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. [ 63.524672][ T5093] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.557574][ T5093] hsr_slave_0: entered promiscuous mode [ 63.564279][ T5093] hsr_slave_1: entered promiscuous mode [ 63.666144][ T5093] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.680314][ T5093] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.689855][ T5093] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.700030][ T5093] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.726032][ T5093] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.733712][ T5093] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.741981][ T5093] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.749185][ T5093] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.760630][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.770010][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.822782][ T5093] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.837968][ T2072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.850748][ T2072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.863839][ T5093] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.874705][ T4748] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.884951][ T4748] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.894885][ T4748] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.902131][ T4748] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.916413][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.925671][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.935672][ T5104] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.942887][ T5104] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.956534][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.975836][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.984863][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.994823][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.004951][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.015708][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.025596][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.037037][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.046572][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.060736][ T5093] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.072986][ T5093] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.082305][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.091099][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.234494][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.242895][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.255698][ T5093] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.275944][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 64.285733][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.310179][ T5093] veth0_vlan: entered promiscuous mode [ 64.323935][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 64.332510][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.344723][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.353751][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.362580][ T5093] veth1_vlan: entered promiscuous mode [ 64.383896][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.392331][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.401290][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 64.410323][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.420489][ T5093] veth0_macvtap: entered promiscuous mode [ 64.431412][ T5093] veth1_macvtap: entered promiscuous mode [ 64.448366][ T5093] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.458025][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.467433][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 64.475966][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.486516][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.498640][ T5093] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.506345][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.515810][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.529432][ T5093] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.539315][ T5093] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.548802][ T5093] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.560890][ T5093] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.634648][ T4401] Bluetooth: hci0: command 0x0409 tx timeout [ 64.642123][ T1233] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.651431][ T1233] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.663502][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.681793][ T1233] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.691118][ T1233] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.701393][ T5104] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2023/03/14 00:55:49 building call list... executing program [ 66.702629][ T5088] 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. [ 66.883479][ T5088] can: request_module (can-proto-0) failed. [ 66.920742][ T5088] can: request_module (can-proto-0) failed. [ 66.958065][ T5088] can: request_module (can-proto-0) failed. [ 67.531828][ T2857] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program