Warning: Permanently added '10.128.10.24' (ECDSA) to the list of known hosts. 2023/03/13 23:32:03 fuzzer started 2023/03/13 23:32:03 connecting to host at 10.128.0.169:34993 2023/03/13 23:32:03 checking machine... 2023/03/13 23:32:03 checking revisions... 2023/03/13 23:32:03 testing simple program... syzkaller login: [ 59.668559][ T5085] cgroup: Unknown subsys name 'net' [ 59.805272][ T5085] cgroup: Unknown subsys name 'rlimit' [ 59.905677][ T5077] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5077 'syz-fuzzer' [ 60.037617][ T5089] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.046487][ T5089] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.054797][ T5089] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.064855][ T5089] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.073925][ T5089] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.082068][ T5089] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 60.218262][ T5087] chnl_net:caif_netlink_parms(): no params data found [ 60.242099][ T5087] [ 60.244476][ T5087] ============================= [ 60.249749][ T5087] WARNING: suspicious RCU usage [ 60.254873][ T5087] 6.3.0-rc1-syzkaller-00146-g22a825c541d7 #0 Not tainted [ 60.262055][ T5087] ----------------------------- [ 60.266998][ T5087] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 60.275089][ T5087] [ 60.275089][ T5087] other info that might help us debug this: [ 60.275089][ T5087] [ 60.285621][ T5087] [ 60.285621][ T5087] rcu_scheduler_active = 2, debug_locks = 1 [ 60.293886][ T5087] 1 lock held by syz-executor.0/5087: [ 60.299417][ T5087] #0: ffffffff8e102ec8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 60.308934][ T5087] [ 60.308934][ T5087] stack backtrace: [ 60.314898][ T5087] CPU: 1 PID: 5087 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller-00146-g22a825c541d7 #0 [ 60.325241][ T5087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 60.335575][ T5087] Call Trace: [ 60.339119][ T5087] [ 60.342319][ T5087] dump_stack_lvl+0x136/0x150 [ 60.347099][ T5087] lockdep_rcu_suspicious+0x208/0x3a0 [ 60.352739][ T5087] veth_set_xdp_features+0x1c7/0x250 [ 60.358220][ T5087] veth_newlink+0x729/0x9d0 [ 60.362722][ T5087] ? veth_set_features+0x1e0/0x1e0 [ 60.367841][ T5087] ? __rtnl_newlink+0xfd4/0x1840 [ 60.373266][ T5087] ? rtnl_newlink+0x68/0xa0 [ 60.377849][ T5087] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 60.382977][ T5087] ? netlink_rcv_skb+0x165/0x440 [ 60.387999][ T5087] ? netlink_unicast+0x547/0x7f0 [ 60.393666][ T5087] ? netlink_sendmsg+0x925/0xe30 [ 60.398614][ T5087] ? sock_sendmsg+0xde/0x190 [ 60.403213][ T5087] ? __sys_sendto+0x23a/0x340 [ 60.407894][ T5087] ? __x64_sys_sendto+0xe1/0x1b0 [ 60.412832][ T5087] ? do_syscall_64+0x39/0xb0 [ 60.417427][ T5087] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.423550][ T5087] ? find_held_lock+0x2d/0x110 [ 60.428517][ T5087] ? __kmem_cache_alloc_node+0x48/0x320 [ 60.434189][ T5087] ? kvmalloc_node+0xa2/0x1a0 [ 60.438893][ T5087] ? rcu_read_lock_sched_held+0x3e/0x70 [ 60.444632][ T5087] ? trace_kmalloc+0xb4/0x110 [ 60.449320][ T5087] ? __kmalloc_node+0x77/0xd0 [ 60.454108][ T5087] ? __xdp_rxq_info_reg+0x18d/0x340 [ 60.459495][ T5087] ? alloc_netdev_mqs+0xdce/0x1250 [ 60.464732][ T5087] ? rtnl_create_link+0x9d8/0xee0 [ 60.469863][ T5087] ? veth_set_features+0x1e0/0x1e0 [ 60.475084][ T5087] __rtnl_newlink+0x10c2/0x1840 [ 60.480235][ T5087] ? find_held_lock+0x2d/0x110 [ 60.485189][ T5087] ? rtnl_link_unregister+0x250/0x250 [ 60.490678][ T5087] ? __kmem_cache_alloc_node+0x48/0x320 [ 60.496264][ T5087] rtnl_newlink+0x68/0xa0 [ 60.500617][ T5087] ? __rtnl_newlink+0x1840/0x1840 [ 60.505654][ T5087] rtnetlink_rcv_msg+0x43d/0xd50 [ 60.510607][ T5087] ? rtnl_stats_set+0x4d0/0x4d0 [ 60.515646][ T5087] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.521633][ T5087] ? do_syscall_64+0x39/0xb0 [ 60.526252][ T5087] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.532356][ T5087] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.538353][ T5087] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.544350][ T5087] netlink_rcv_skb+0x165/0x440 [ 60.549131][ T5087] ? rtnl_stats_set+0x4d0/0x4d0 [ 60.554034][ T5087] ? netlink_ack+0x1360/0x1360 [ 60.559177][ T5087] ? netlink_deliver_tap+0x1b1/0xcf0 [ 60.564662][ T5087] netlink_unicast+0x547/0x7f0 [ 60.569832][ T5087] ? netlink_attachskb+0x890/0x890 [ 60.575041][ T5087] ? __virt_addr_valid+0x61/0x2e0 [ 60.580178][ T5087] ? __phys_addr_symbol+0x30/0x70 [ 60.585214][ T5087] ? __check_object_size+0x333/0x6e0 [ 60.590519][ T5087] netlink_sendmsg+0x925/0xe30 [ 60.595324][ T5087] ? netlink_unicast+0x7f0/0x7f0 [ 60.600284][ T5087] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 60.605670][ T5087] ? netlink_unicast+0x7f0/0x7f0 [ 60.610621][ T5087] sock_sendmsg+0xde/0x190 [ 60.615055][ T5087] __sys_sendto+0x23a/0x340 [ 60.619584][ T5087] ? __ia32_sys_getpeername+0xb0/0xb0 [ 60.625172][ T5087] ? restore_fpregs_from_fpstate+0xc1/0x1c0 [ 60.631102][ T5087] __x64_sys_sendto+0xe1/0x1b0 [ 60.636060][ T5087] ? syscall_enter_from_user_mode+0x26/0xb0 [ 60.642056][ T5087] do_syscall_64+0x39/0xb0 [ 60.646480][ T5087] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.652393][ T5087] RIP: 0033:0x7f80f3c3e12c [ 60.656989][ T5087] 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 [ 60.677655][ T5087] RSP: 002b:00007ffdd35c8e10 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 60.686344][ T5087] RAX: ffffffffffffffda RBX: 00007f80f48d4620 RCX: 00007f80f3c3e12c [ 60.694327][ T5087] RDX: 000000000000002c RSI: 00007f80f48d4670 RDI: 0000000000000003 [ 60.702385][ T5087] RBP: 0000000000000000 R08: 00007ffdd35c8e64 R09: 000000000000000c [ 60.710486][ T5087] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 60.718490][ T5087] R13: 00007f80f48d4670 R14: 0000000000000003 R15: 0000000000000000 [ 60.726590][ T5087] [ 60.758900][ T5087] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.766950][ T5087] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.774779][ T5087] bridge_slave_0: entered allmulticast mode [ 60.781849][ T5087] bridge_slave_0: entered promiscuous mode [ 60.792429][ T5087] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.800358][ T5087] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.807956][ T5087] bridge_slave_1: entered allmulticast mode [ 60.814647][ T5087] bridge_slave_1: entered promiscuous mode [ 60.837358][ T5087] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.850283][ T5087] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.874702][ T5087] team0: Port device team_slave_0 added [ 60.882767][ T5087] team0: Port device team_slave_1 added [ 60.901066][ T5087] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.908224][ T5087] 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. [ 60.934839][ T5087] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.950289][ T5087] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.961104][ T5087] 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. [ 60.987576][ T5087] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.018963][ T5087] hsr_slave_0: entered promiscuous mode [ 61.026164][ T5087] hsr_slave_1: entered promiscuous mode [ 61.127259][ T5087] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.139476][ T5087] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.150204][ T5087] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.160120][ T5087] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.187159][ T5087] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.194757][ T5087] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.203299][ T5087] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.210734][ T5087] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.223837][ T26] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.233229][ T26] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.285032][ T5087] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.299631][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.310308][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.321676][ T5087] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.334280][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.343283][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.352880][ T14] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.360430][ T14] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.379180][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.388485][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.398106][ T26] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.405424][ T26] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.414107][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.422939][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.432426][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.443261][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.453369][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.465040][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.475643][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.491300][ T5087] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.503173][ T5087] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.516195][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.525740][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.535922][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.544798][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.554051][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.691249][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.699766][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.712625][ T5087] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.730171][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.739870][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.768365][ T5087] veth0_vlan: entered promiscuous mode [ 61.775153][ T4462] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.784120][ T4462] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.794417][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.802921][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.816445][ T5087] veth1_vlan: entered promiscuous mode [ 61.836745][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.845631][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.854345][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.863669][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.875655][ T5087] veth0_macvtap: entered promiscuous mode [ 61.885099][ T5087] veth1_macvtap: entered promiscuous mode [ 61.901779][ T5087] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.910953][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.920758][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 61.929703][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 61.939127][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.951856][ T5087] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.960999][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.970936][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 61.983857][ T5087] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.995181][ T5087] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.004995][ T5087] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.014592][ T5087] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 62.084031][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.092578][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.106279][ T4462] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 62.122604][ T1022] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 62.131103][ T1022] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 62.141000][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 62.148887][ T5089] Bluetooth: hci0: command 0x0409 tx timeout 2023/03/13 23:32:06 building call list... executing program [ 64.192312][ 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. [ 64.399372][ T5078] can: request_module (can-proto-0) failed. [ 64.435705][ T5078] can: request_module (can-proto-0) failed. [ 64.470682][ T5078] can: request_module (can-proto-0) failed. [ 65.229089][ T9] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program