Warning: Permanently added '10.128.1.18' (ECDSA) to the list of known hosts. 2023/03/15 07:29:54 fuzzer started 2023/03/15 07:29:55 connecting to host at 10.128.0.169:40167 2023/03/15 07:29:55 checking machine... 2023/03/15 07:29:55 checking revisions... 2023/03/15 07:29:55 testing simple program... syzkaller login: [ 54.089075][ T5081] cgroup: Unknown subsys name 'net' [ 54.194498][ T5081] cgroup: Unknown subsys name 'rlimit' [ 54.352772][ T5075] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5075 'syz-fuzzer' [ 54.463832][ T5085] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.472206][ T5085] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.480144][ T5085] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.488260][ T5085] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.496285][ T5085] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.503788][ T5085] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.619990][ T5083] chnl_net:caif_netlink_parms(): no params data found [ 54.641413][ T5083] [ 54.643764][ T5083] ============================= [ 54.649274][ T5083] WARNING: suspicious RCU usage [ 54.654145][ T5083] 6.3.0-rc1-syzkaller-00152-g248401cb2c46 #0 Not tainted [ 54.661624][ T5083] ----------------------------- [ 54.666541][ T5083] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 54.674544][ T5083] [ 54.674544][ T5083] other info that might help us debug this: [ 54.674544][ T5083] [ 54.684956][ T5083] [ 54.684956][ T5083] rcu_scheduler_active = 2, debug_locks = 1 [ 54.693080][ T5083] 1 lock held by syz-executor.0/5083: [ 54.698748][ T5083] #0: ffffffff8e102ec8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 54.708437][ T5083] [ 54.708437][ T5083] stack backtrace: [ 54.714318][ T5083] CPU: 0 PID: 5083 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller-00152-g248401cb2c46 #0 [ 54.724629][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 54.734759][ T5083] Call Trace: [ 54.738034][ T5083] [ 54.740955][ T5083] dump_stack_lvl+0x136/0x150 [ 54.745632][ T5083] lockdep_rcu_suspicious+0x208/0x3a0 [ 54.750997][ T5083] veth_set_xdp_features+0x1c7/0x250 [ 54.756374][ T5083] veth_newlink+0x729/0x9d0 [ 54.760917][ T5083] ? veth_set_features+0x1e0/0x1e0 [ 54.766042][ T5083] ? __rtnl_newlink+0xfd4/0x1840 [ 54.771021][ T5083] ? rtnl_newlink+0x68/0xa0 [ 54.775583][ T5083] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 54.780794][ T5083] ? netlink_rcv_skb+0x165/0x440 [ 54.785751][ T5083] ? netlink_unicast+0x547/0x7f0 [ 54.790729][ T5083] ? netlink_sendmsg+0x925/0xe30 [ 54.795669][ T5083] ? sock_sendmsg+0xde/0x190 [ 54.800261][ T5083] ? __sys_sendto+0x23a/0x340 [ 54.804969][ T5083] ? __x64_sys_sendto+0xe1/0x1b0 [ 54.809913][ T5083] ? do_syscall_64+0x39/0xb0 [ 54.814497][ T5083] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.820591][ T5083] ? find_held_lock+0x2d/0x110 [ 54.825382][ T5083] ? __kmem_cache_alloc_node+0x48/0x320 [ 54.830979][ T5083] ? kvmalloc_node+0xa2/0x1a0 [ 54.835863][ T5083] ? rcu_read_lock_sched_held+0x3e/0x70 [ 54.841433][ T5083] ? trace_kmalloc+0xb4/0x110 [ 54.846296][ T5083] ? __kmalloc_node+0x77/0xd0 [ 54.850982][ T5083] ? __xdp_rxq_info_reg+0x18d/0x340 [ 54.856229][ T5083] ? alloc_netdev_mqs+0xdce/0x1250 [ 54.861530][ T5083] ? rtnl_create_link+0x9d8/0xee0 [ 54.866569][ T5083] ? veth_set_features+0x1e0/0x1e0 [ 54.871687][ T5083] __rtnl_newlink+0x10c2/0x1840 [ 54.876647][ T5083] ? find_held_lock+0x2d/0x110 [ 54.881515][ T5083] ? rtnl_link_unregister+0x250/0x250 [ 54.886902][ T5083] ? __kmem_cache_alloc_node+0x48/0x320 [ 54.892490][ T5083] rtnl_newlink+0x68/0xa0 [ 54.896836][ T5083] ? __rtnl_newlink+0x1840/0x1840 [ 54.901875][ T5083] rtnetlink_rcv_msg+0x43d/0xd50 [ 54.906835][ T5083] ? rtnl_stats_set+0x4d0/0x4d0 [ 54.911720][ T5083] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.917808][ T5083] ? do_syscall_64+0x39/0xb0 [ 54.922588][ T5083] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.928678][ T5083] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.934661][ T5083] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.940660][ T5083] netlink_rcv_skb+0x165/0x440 [ 54.945438][ T5083] ? rtnl_stats_set+0x4d0/0x4d0 [ 54.950307][ T5083] ? netlink_ack+0x1360/0x1360 [ 54.955104][ T5083] ? netlink_deliver_tap+0x1b1/0xcf0 [ 54.960417][ T5083] netlink_unicast+0x547/0x7f0 [ 54.965199][ T5083] ? netlink_attachskb+0x890/0x890 [ 54.970423][ T5083] ? __virt_addr_valid+0x61/0x2e0 [ 54.975469][ T5083] ? __phys_addr_symbol+0x30/0x70 [ 54.980763][ T5083] ? __check_object_size+0x333/0x6e0 [ 54.986093][ T5083] netlink_sendmsg+0x925/0xe30 [ 54.990877][ T5083] ? netlink_unicast+0x7f0/0x7f0 [ 54.995855][ T5083] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 55.001150][ T5083] ? netlink_unicast+0x7f0/0x7f0 [ 55.006202][ T5083] sock_sendmsg+0xde/0x190 [ 55.010650][ T5083] __sys_sendto+0x23a/0x340 [ 55.015167][ T5083] ? __ia32_sys_getpeername+0xb0/0xb0 [ 55.020587][ T5083] ? restore_fpregs_from_fpstate+0xc1/0x1c0 [ 55.026534][ T5083] __x64_sys_sendto+0xe1/0x1b0 [ 55.031400][ T5083] ? syscall_enter_from_user_mode+0x26/0xb0 [ 55.037312][ T5083] do_syscall_64+0x39/0xb0 [ 55.041743][ T5083] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.047650][ T5083] RIP: 0033:0x7fa09263e12c [ 55.052069][ T5083] 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 [ 55.072547][ T5083] RSP: 002b:00007ffe19879890 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 55.080978][ T5083] RAX: ffffffffffffffda RBX: 00007fa0932d4620 RCX: 00007fa09263e12c [ 55.088955][ T5083] RDX: 000000000000002c RSI: 00007fa0932d4670 RDI: 0000000000000003 [ 55.096937][ T5083] RBP: 0000000000000000 R08: 00007ffe198798e4 R09: 000000000000000c [ 55.104908][ T5083] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 55.112882][ T5083] R13: 00007fa0932d4670 R14: 0000000000000003 R15: 0000000000000000 [ 55.120867][ T5083] [ 55.151335][ T5083] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.159279][ T5083] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.166653][ T5083] bridge_slave_0: entered allmulticast mode [ 55.173241][ T5083] bridge_slave_0: entered promiscuous mode [ 55.182447][ T5083] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.189923][ T5083] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.197266][ T5083] bridge_slave_1: entered allmulticast mode [ 55.203760][ T5083] bridge_slave_1: entered promiscuous mode [ 55.224899][ T5083] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.236321][ T5083] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.260100][ T5083] team0: Port device team_slave_0 added [ 55.267671][ T5083] team0: Port device team_slave_1 added [ 55.285731][ T5083] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.292679][ T5083] 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. [ 55.318633][ T5083] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.331411][ T5083] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.338455][ T5083] 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. [ 55.364380][ T5083] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.395761][ T5083] hsr_slave_0: entered promiscuous mode [ 55.402055][ T5083] hsr_slave_1: entered promiscuous mode [ 55.491054][ T5083] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.501543][ T5083] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.511556][ T5083] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.520874][ T5083] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.542921][ T5083] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.550139][ T5083] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.557972][ T5083] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.565152][ T5083] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.614916][ T5083] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.626798][ T5084] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.636156][ T5084] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.644930][ T5084] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 55.662458][ T5083] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.670494][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.679074][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.690016][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.699453][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.709866][ T5096] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.717078][ T5096] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.735904][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.744644][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.753709][ T5096] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.761250][ T5096] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.769053][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.778370][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.788782][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.797854][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.807173][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.820833][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.829475][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.840628][ T2169] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 55.850199][ T2169] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.864035][ T5083] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 55.876554][ T5083] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.885075][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 55.894346][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.024289][ T5083] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.032640][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.040741][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.058681][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 56.068508][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.087764][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 56.096713][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.106368][ T5083] veth0_vlan: entered promiscuous mode [ 56.117305][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.125889][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.135049][ T5083] veth1_vlan: entered promiscuous mode [ 56.157484][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.166625][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.175761][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 56.184384][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.194898][ T5083] veth0_macvtap: entered promiscuous mode [ 56.212050][ T5083] veth1_macvtap: entered promiscuous mode [ 56.227556][ T5083] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.235173][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.244016][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 56.252178][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 56.260804][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.273906][ T5083] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.281394][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 56.290743][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 56.302060][ T5083] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.312003][ T5083] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.321130][ T5083] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.330048][ T5083] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.390222][ T75] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.406426][ T75] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.418750][ T2169] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 56.433745][ T75] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.444447][ T75] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.453589][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2023/03/15 07:29:57 building call list... [ 56.586153][ T4399] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 58.439054][ T5075] 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. [ 58.600214][ T5075] can: request_module (can-proto-0) failed. [ 58.634029][ T5075] can: request_module (can-proto-0) failed. [ 58.668077][ T5075] can: request_module (can-proto-0) failed. [ 59.532753][ T50] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program