Warning: Permanently added '10.128.1.89' (ECDSA) to the list of known hosts. 2023/03/14 00:55:47 fuzzer started 2023/03/14 00:55:47 connecting to host at 10.128.0.169:42917 2023/03/14 00:55:47 checking machine... 2023/03/14 00:55:47 checking revisions... 2023/03/14 00:55:48 testing simple program... syzkaller login: [ 54.169262][ T5085] cgroup: Unknown subsys name 'net' [ 54.299311][ T5085] cgroup: Unknown subsys name 'rlimit' [ 54.409671][ T5079] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5079 'syz-fuzzer' [ 54.527857][ T5090] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.536216][ T5090] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.544034][ T5090] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.551987][ T5090] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.560048][ T48] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.568482][ T48] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.692840][ T5088] chnl_net:caif_netlink_parms(): no params data found [ 54.715516][ T5088] [ 54.717895][ T5088] ============================= [ 54.723492][ T5088] WARNING: suspicious RCU usage [ 54.728372][ T5088] 6.3.0-rc1-syzkaller-00150-g512dd354718b #0 Not tainted [ 54.735789][ T5088] ----------------------------- [ 54.740761][ T5088] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 54.748913][ T5088] [ 54.748913][ T5088] other info that might help us debug this: [ 54.748913][ T5088] [ 54.759343][ T5088] [ 54.759343][ T5088] rcu_scheduler_active = 2, debug_locks = 1 [ 54.767498][ T5088] 1 lock held by syz-executor.0/5088: [ 54.772970][ T5088] #0: ffffffff8e102ec8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 54.782958][ T5088] [ 54.782958][ T5088] stack backtrace: [ 54.788886][ T5088] CPU: 1 PID: 5088 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller-00150-g512dd354718b #0 [ 54.799233][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 54.809290][ T5088] Call Trace: [ 54.812580][ T5088] [ 54.815631][ T5088] dump_stack_lvl+0x136/0x150 [ 54.820344][ T5088] lockdep_rcu_suspicious+0x208/0x3a0 [ 54.825756][ T5088] veth_set_xdp_features+0x1c7/0x250 [ 54.831093][ T5088] veth_newlink+0x729/0x9d0 [ 54.835615][ T5088] ? veth_set_features+0x1e0/0x1e0 [ 54.840759][ T5088] ? __rtnl_newlink+0xfd4/0x1840 [ 54.845840][ T5088] ? rtnl_newlink+0x68/0xa0 [ 54.850368][ T5088] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 54.855599][ T5088] ? netlink_rcv_skb+0x165/0x440 [ 54.860547][ T5088] ? netlink_unicast+0x547/0x7f0 [ 54.865495][ T5088] ? netlink_sendmsg+0x925/0xe30 [ 54.870444][ T5088] ? sock_sendmsg+0xde/0x190 [ 54.875134][ T5088] ? __sys_sendto+0x23a/0x340 [ 54.879823][ T5088] ? __x64_sys_sendto+0xe1/0x1b0 [ 54.884971][ T5088] ? do_syscall_64+0x39/0xb0 [ 54.889584][ T5088] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.895698][ T5088] ? find_held_lock+0x2d/0x110 [ 54.900501][ T5088] ? __kmem_cache_alloc_node+0x48/0x320 [ 54.906522][ T5088] ? kvmalloc_node+0xa2/0x1a0 [ 54.911291][ T5088] ? rcu_read_lock_sched_held+0x3e/0x70 [ 54.916841][ T5088] ? trace_kmalloc+0xb4/0x110 [ 54.921523][ T5088] ? __kmalloc_node+0x77/0xd0 [ 54.926384][ T5088] ? __xdp_rxq_info_reg+0x18d/0x340 [ 54.931596][ T5088] ? alloc_netdev_mqs+0xdce/0x1250 [ 54.936723][ T5088] ? rtnl_create_link+0x9d8/0xee0 [ 54.941767][ T5088] ? veth_set_features+0x1e0/0x1e0 [ 54.946984][ T5088] __rtnl_newlink+0x10c2/0x1840 [ 54.951877][ T5088] ? rtnl_link_unregister+0x250/0x250 [ 54.957321][ T5088] rtnl_newlink+0x68/0xa0 [ 54.961845][ T5088] ? __rtnl_newlink+0x1840/0x1840 [ 54.966883][ T5088] rtnetlink_rcv_msg+0x43d/0xd50 [ 54.971837][ T5088] ? rtnl_stats_set+0x4d0/0x4d0 [ 54.976701][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.982692][ T5088] ? do_syscall_64+0x39/0xb0 [ 54.987291][ T5088] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.993461][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.999536][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 55.005538][ T5088] netlink_rcv_skb+0x165/0x440 [ 55.010373][ T5088] ? rtnl_stats_set+0x4d0/0x4d0 [ 55.015380][ T5088] ? netlink_ack+0x1360/0x1360 [ 55.020189][ T5088] ? netlink_deliver_tap+0x1b1/0xcf0 [ 55.025516][ T5088] netlink_unicast+0x547/0x7f0 [ 55.030330][ T5088] ? netlink_attachskb+0x890/0x890 [ 55.035556][ T5088] ? __virt_addr_valid+0x61/0x2e0 [ 55.040778][ T5088] ? __phys_addr_symbol+0x30/0x70 [ 55.045815][ T5088] ? __check_object_size+0x333/0x6e0 [ 55.051124][ T5088] netlink_sendmsg+0x925/0xe30 [ 55.055996][ T5088] ? netlink_unicast+0x7f0/0x7f0 [ 55.061213][ T5088] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 55.066693][ T5088] ? netlink_unicast+0x7f0/0x7f0 [ 55.071649][ T5088] sock_sendmsg+0xde/0x190 [ 55.076082][ T5088] __sys_sendto+0x23a/0x340 [ 55.080730][ T5088] ? __ia32_sys_getpeername+0xb0/0xb0 [ 55.086180][ T5088] ? restore_fpregs_from_fpstate+0xc1/0x1c0 [ 55.092216][ T5088] __x64_sys_sendto+0xe1/0x1b0 [ 55.097089][ T5088] ? syscall_enter_from_user_mode+0x26/0xb0 [ 55.103002][ T5088] do_syscall_64+0x39/0xb0 [ 55.107438][ T5088] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.113366][ T5088] RIP: 0033:0x7fa18703e12c [ 55.117896][ 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 [ 55.137888][ T5088] RSP: 002b:00007fff0bf92be0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 55.146675][ T5088] RAX: ffffffffffffffda RBX: 00007fa187cd4620 RCX: 00007fa18703e12c [ 55.154649][ T5088] RDX: 000000000000002c RSI: 00007fa187cd4670 RDI: 0000000000000003 [ 55.162649][ T5088] RBP: 0000000000000000 R08: 00007fff0bf92c34 R09: 000000000000000c [ 55.170644][ T5088] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 55.178615][ T5088] R13: 00007fa187cd4670 R14: 0000000000000003 R15: 0000000000000000 [ 55.186616][ T5088] [ 55.217408][ T5088] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.225237][ T5088] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.232685][ T5088] bridge_slave_0: entered allmulticast mode [ 55.241480][ T5088] bridge_slave_0: entered promiscuous mode [ 55.250252][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.257878][ T5088] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.265141][ T5088] bridge_slave_1: entered allmulticast mode [ 55.271792][ T5088] bridge_slave_1: entered promiscuous mode [ 55.293284][ T5088] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.305226][ T5088] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.328542][ T5088] team0: Port device team_slave_0 added [ 55.336214][ T5088] team0: Port device team_slave_1 added [ 55.356006][ T5088] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.363047][ 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. [ 55.389445][ T5088] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.403051][ T5088] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.410130][ 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. [ 55.436125][ T5088] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.467183][ T5088] hsr_slave_0: entered promiscuous mode [ 55.473961][ T5088] hsr_slave_1: entered promiscuous mode [ 55.562987][ T5088] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.574228][ T5088] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.583876][ T5088] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.593471][ T5088] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.616083][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.623423][ T5088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.631609][ T5088] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.639153][ T5088] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.689526][ T5088] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.702007][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.713646][ T900] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.722551][ T900] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.730901][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 55.745287][ T5088] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.755861][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.765028][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.774151][ T900] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.781343][ T900] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.803064][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.811752][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.820404][ T900] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.827535][ T900] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.835508][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.844961][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.853865][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.864236][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.872791][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.882564][ T900] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.895417][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.906338][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 55.916171][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.928892][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 55.938541][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.949397][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.082957][ T5088] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.090844][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.099152][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.117273][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 56.126066][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.146211][ T5088] veth0_vlan: entered promiscuous mode [ 56.154096][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 56.162932][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.171762][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.180082][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.195354][ T5088] veth1_vlan: entered promiscuous mode [ 56.213998][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 56.222273][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 56.230618][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 56.240311][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 56.253214][ T5088] veth0_macvtap: entered promiscuous mode [ 56.262016][ T5088] veth1_macvtap: entered promiscuous mode [ 56.283474][ T5088] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.291062][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 56.300431][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 56.308929][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 56.319475][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 56.335057][ T5088] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.342504][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 56.351150][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 56.363504][ T5088] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.372581][ T5088] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.381547][ T5088] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.390644][ T5088] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.455980][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.474689][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.486306][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 56.496704][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.506892][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.517205][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2023/03/14 00:55:50 building call list... [ 56.583174][ T48] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 58.431762][ 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. [ 58.601950][ T5083] can: request_module (can-proto-0) failed. [ 58.636965][ T5083] can: request_module (can-proto-0) failed. [ 58.671412][ T5083] can: request_module (can-proto-0) failed. [ 59.808994][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program