Warning: Permanently added '10.128.1.183' (ECDSA) to the list of known hosts. 2023/03/11 10:07:40 fuzzer started 2023/03/11 10:07:40 connecting to host at 10.128.0.169:38177 2023/03/11 10:07:40 checking machine... 2023/03/11 10:07:40 checking revisions... 2023/03/11 10:07:40 testing simple program... syzkaller login: [ 56.851715][ T5084] cgroup: Unknown subsys name 'net' [ 57.027388][ T5084] cgroup: Unknown subsys name 'rlimit' [ 57.126929][ T5079] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5079 'syz-fuzzer' [ 57.257944][ T5088] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 57.266171][ T5088] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 57.274730][ T5088] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 57.283379][ T5088] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 57.291626][ T5088] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 57.299012][ T5088] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 57.431767][ T5086] chnl_net:caif_netlink_parms(): no params data found [ 57.456518][ T5086] [ 57.459113][ T5086] ============================= [ 57.463984][ T5086] WARNING: suspicious RCU usage [ 57.468895][ T5086] 6.3.0-rc1-syzkaller-00144-g064d70527aaa #0 Not tainted [ 57.475977][ T5086] ----------------------------- [ 57.480891][ T5086] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 57.488943][ T5086] [ 57.488943][ T5086] other info that might help us debug this: [ 57.488943][ T5086] [ 57.499514][ T5086] [ 57.499514][ T5086] rcu_scheduler_active = 2, debug_locks = 1 [ 57.507600][ T5086] 1 lock held by syz-executor.0/5086: [ 57.513016][ T5086] #0: ffffffff8e102ec8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 57.522621][ T5086] [ 57.522621][ T5086] stack backtrace: [ 57.528575][ T5086] CPU: 1 PID: 5086 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller-00144-g064d70527aaa #0 [ 57.538943][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 57.549069][ T5086] Call Trace: [ 57.552469][ T5086] [ 57.555440][ T5086] dump_stack_lvl+0x136/0x150 [ 57.560198][ T5086] lockdep_rcu_suspicious+0x208/0x3a0 [ 57.565711][ T5086] veth_set_xdp_features+0x1c7/0x250 [ 57.571075][ T5086] veth_newlink+0x729/0x9d0 [ 57.575601][ T5086] ? veth_set_features+0x1e0/0x1e0 [ 57.580724][ T5086] ? __rtnl_newlink+0xfd4/0x1840 [ 57.585857][ T5086] ? rtnl_newlink+0x68/0xa0 [ 57.590377][ T5086] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 57.595504][ T5086] ? netlink_rcv_skb+0x165/0x440 [ 57.600472][ T5086] ? netlink_unicast+0x547/0x7f0 [ 57.605421][ T5086] ? netlink_sendmsg+0x925/0xe30 [ 57.610408][ T5086] ? sock_sendmsg+0xde/0x190 [ 57.615020][ T5086] ? __sys_sendto+0x23a/0x340 [ 57.619720][ T5086] ? __x64_sys_sendto+0xe1/0x1b0 [ 57.624674][ T5086] ? do_syscall_64+0x39/0xb0 [ 57.629381][ T5086] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.635482][ T5086] ? find_held_lock+0x2d/0x110 [ 57.640271][ T5086] ? __kmem_cache_alloc_node+0x48/0x320 [ 57.645863][ T5086] ? kvmalloc_node+0xa2/0x1a0 [ 57.650569][ T5086] ? rcu_read_lock_sched_held+0x3e/0x70 [ 57.656573][ T5086] ? trace_kmalloc+0xb4/0x110 [ 57.661277][ T5086] ? __kmalloc_node+0x77/0xd0 [ 57.665994][ T5086] ? __xdp_rxq_info_reg+0x18d/0x340 [ 57.671232][ T5086] ? alloc_netdev_mqs+0xdce/0x1250 [ 57.676421][ T5086] ? rtnl_create_link+0x9d8/0xee0 [ 57.681508][ T5086] ? veth_set_features+0x1e0/0x1e0 [ 57.686647][ T5086] __rtnl_newlink+0x10c2/0x1840 [ 57.691536][ T5086] ? find_held_lock+0x2d/0x110 [ 57.696335][ T5086] ? rtnl_link_unregister+0x250/0x250 [ 57.701725][ T5086] ? __kmem_cache_alloc_node+0x48/0x320 [ 57.707475][ T5086] rtnl_newlink+0x68/0xa0 [ 57.711892][ T5086] ? __rtnl_newlink+0x1840/0x1840 [ 57.717057][ T5086] rtnetlink_rcv_msg+0x43d/0xd50 [ 57.722036][ T5086] ? rtnl_stats_set+0x4d0/0x4d0 [ 57.726918][ T5086] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 57.732909][ T5086] ? do_syscall_64+0x39/0xb0 [ 57.737620][ T5086] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.743702][ T5086] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 57.750223][ T5086] netlink_rcv_skb+0x165/0x440 [ 57.755024][ T5086] ? rtnl_stats_set+0x4d0/0x4d0 [ 57.759979][ T5086] ? netlink_ack+0x1360/0x1360 [ 57.764772][ T5086] ? netlink_deliver_tap+0x1b1/0xcf0 [ 57.770181][ T5086] netlink_unicast+0x547/0x7f0 [ 57.775228][ T5086] ? netlink_attachskb+0x890/0x890 [ 57.780349][ T5086] ? __virt_addr_valid+0x61/0x2e0 [ 57.785495][ T5086] ? __phys_addr_symbol+0x30/0x70 [ 57.790535][ T5086] ? __check_object_size+0x333/0x6e0 [ 57.795844][ T5086] netlink_sendmsg+0x925/0xe30 [ 57.800631][ T5086] ? netlink_unicast+0x7f0/0x7f0 [ 57.805640][ T5086] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 57.811111][ T5086] ? netlink_unicast+0x7f0/0x7f0 [ 57.816166][ T5086] sock_sendmsg+0xde/0x190 [ 57.820606][ T5086] __sys_sendto+0x23a/0x340 [ 57.825169][ T5086] ? __ia32_sys_getpeername+0xb0/0xb0 [ 57.830583][ T5086] ? restore_fpregs_from_fpstate+0xc1/0x1c0 [ 57.836543][ T5086] __x64_sys_sendto+0xe1/0x1b0 [ 57.841370][ T5086] ? syscall_enter_from_user_mode+0x26/0xb0 [ 57.847322][ T5086] do_syscall_64+0x39/0xb0 [ 57.851764][ T5086] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.857779][ T5086] RIP: 0033:0x7f00d843e12c [ 57.862245][ T5086] 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 [ 57.881985][ T5086] RSP: 002b:00007ffce7d565d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 57.890617][ T5086] RAX: ffffffffffffffda RBX: 00007f00d90d4620 RCX: 00007f00d843e12c [ 57.898594][ T5086] RDX: 000000000000002c RSI: 00007f00d90d4670 RDI: 0000000000000003 [ 57.907350][ T5086] RBP: 0000000000000000 R08: 00007ffce7d56624 R09: 000000000000000c [ 57.915619][ T5086] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 57.923700][ T5086] R13: 00007f00d90d4670 R14: 0000000000000003 R15: 0000000000000000 [ 57.931716][ T5086] [ 57.966490][ T5086] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.974380][ T5086] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.982680][ T5086] bridge_slave_0: entered allmulticast mode [ 57.990490][ T5086] bridge_slave_0: entered promiscuous mode [ 58.001296][ T5086] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.008816][ T5086] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.016183][ T5086] bridge_slave_1: entered allmulticast mode [ 58.023058][ T5086] bridge_slave_1: entered promiscuous mode [ 58.045988][ T5086] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.057567][ T5086] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.081801][ T5086] team0: Port device team_slave_0 added [ 58.090594][ T5086] team0: Port device team_slave_1 added [ 58.111856][ T5086] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.119332][ T5086] 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. [ 58.145296][ T5086] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.158530][ T5086] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.165521][ T5086] 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. [ 58.192085][ T5086] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.225733][ T5086] hsr_slave_0: entered promiscuous mode [ 58.232689][ T5086] hsr_slave_1: entered promiscuous mode [ 58.336621][ T5086] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.347723][ T5086] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.357789][ T5086] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.367985][ T5086] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.391421][ T5086] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.399032][ T5086] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.406999][ T5086] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.414238][ T5086] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.451761][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.462210][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.490158][ T5086] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.504162][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.513663][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.526795][ T5086] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.537839][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.548321][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.556885][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.564376][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.579573][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.588537][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.597000][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.604150][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.612142][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.625688][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.637010][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.646570][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.661748][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.669887][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.679085][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.694462][ T5097] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.703118][ T5097] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.712389][ T5097] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.720881][ T5097] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.732700][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.871497][ T5086] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.879126][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.886675][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.906139][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.915409][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.936341][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 58.944683][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.956316][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.964485][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.973533][ T5086] veth0_vlan: entered promiscuous mode [ 58.984425][ T5086] veth1_vlan: entered promiscuous mode [ 59.006250][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.014894][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.023806][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.033909][ T5096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.045555][ T5086] veth0_macvtap: entered promiscuous mode [ 59.056836][ T5086] veth1_macvtap: entered promiscuous mode [ 59.073197][ T5086] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.080784][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.090522][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.099899][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.109345][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.121547][ T5086] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.130361][ T2019] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.139853][ T2019] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.151529][ T5086] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.160793][ T5086] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.170355][ T5086] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.179638][ T5086] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.255447][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.275299][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.284757][ T51] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.287584][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.294260][ T51] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.311066][ T4748] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.329384][ T4401] Bluetooth: hci0: command 0x0409 tx timeout 2023/03/11 10:07:43 building call list... executing program [ 61.291957][ T5078] 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. [ 61.507998][ T5078] can: request_module (can-proto-0) failed. [ 61.549965][ T5078] can: request_module (can-proto-0) failed. [ 61.587393][ T5078] can: request_module (can-proto-0) failed. [ 62.448906][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program