Warning: Permanently added '10.128.1.146' (ECDSA) to the list of known hosts. 2023/03/14 15:43:18 fuzzer started 2023/03/14 15:43:18 connecting to host at 10.128.0.169:46153 2023/03/14 15:43:18 checking machine... 2023/03/14 15:43:18 checking revisions... 2023/03/14 15:43:18 testing simple program... syzkaller login: [ 52.968610][ T5087] cgroup: Unknown subsys name 'net' [ 53.068560][ T5087] cgroup: Unknown subsys name 'rlimit' [ 53.178797][ T5082] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5082 'syz-fuzzer' [ 53.299138][ T5092] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 53.307017][ T5092] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 53.314729][ T5092] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 53.323228][ T5092] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 53.330991][ T5092] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 53.339176][ T5092] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.456075][ T5090] chnl_net:caif_netlink_parms(): no params data found [ 53.478298][ T5090] [ 53.480650][ T5090] ============================= [ 53.486150][ T5090] WARNING: suspicious RCU usage [ 53.490996][ T5090] 6.3.0-rc1-syzkaller-00151-g28e8cabe80f3 #0 Not tainted [ 53.498515][ T5090] ----------------------------- [ 53.503411][ T5090] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 53.511461][ T5090] [ 53.511461][ T5090] other info that might help us debug this: [ 53.511461][ T5090] [ 53.521819][ T5090] [ 53.521819][ T5090] rcu_scheduler_active = 2, debug_locks = 1 [ 53.529901][ T5090] 1 lock held by syz-executor.0/5090: [ 53.535340][ T5090] #0: ffffffff8e102ec8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 53.545277][ T5090] [ 53.545277][ T5090] stack backtrace: [ 53.551153][ T5090] CPU: 0 PID: 5090 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller-00151-g28e8cabe80f3 #0 [ 53.561465][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 53.571949][ T5090] Call Trace: [ 53.575224][ T5090] [ 53.578147][ T5090] dump_stack_lvl+0x136/0x150 [ 53.582847][ T5090] lockdep_rcu_suspicious+0x208/0x3a0 [ 53.588229][ T5090] veth_set_xdp_features+0x1c7/0x250 [ 53.593507][ T5090] veth_newlink+0x729/0x9d0 [ 53.598116][ T5090] ? veth_set_features+0x1e0/0x1e0 [ 53.603225][ T5090] ? __rtnl_newlink+0xfd4/0x1840 [ 53.608185][ T5090] ? rtnl_newlink+0x68/0xa0 [ 53.612691][ T5090] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 53.618014][ T5090] ? netlink_rcv_skb+0x165/0x440 [ 53.623037][ T5090] ? netlink_unicast+0x547/0x7f0 [ 53.628069][ T5090] ? netlink_sendmsg+0x925/0xe30 [ 53.633091][ T5090] ? sock_sendmsg+0xde/0x190 [ 53.637784][ T5090] ? __sys_sendto+0x23a/0x340 [ 53.642485][ T5090] ? __x64_sys_sendto+0xe1/0x1b0 [ 53.647522][ T5090] ? do_syscall_64+0x39/0xb0 [ 53.652115][ T5090] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.658309][ T5090] ? find_held_lock+0x2d/0x110 [ 53.663075][ T5090] ? __kmem_cache_alloc_node+0x48/0x320 [ 53.668733][ T5090] ? kvmalloc_node+0xa2/0x1a0 [ 53.673422][ T5090] ? rcu_read_lock_sched_held+0x3e/0x70 [ 53.678962][ T5090] ? trace_kmalloc+0xb4/0x110 [ 53.683650][ T5090] ? __kmalloc_node+0x77/0xd0 [ 53.688325][ T5090] ? __xdp_rxq_info_reg+0x18d/0x340 [ 53.693566][ T5090] ? alloc_netdev_mqs+0xdce/0x1250 [ 53.698714][ T5090] ? rtnl_create_link+0x9d8/0xee0 [ 53.704087][ T5090] ? veth_set_features+0x1e0/0x1e0 [ 53.709222][ T5090] __rtnl_newlink+0x10c2/0x1840 [ 53.714098][ T5090] ? find_held_lock+0x2d/0x110 [ 53.718871][ T5090] ? rtnl_link_unregister+0x250/0x250 [ 53.724265][ T5090] ? __kmem_cache_alloc_node+0x48/0x320 [ 53.729939][ T5090] rtnl_newlink+0x68/0xa0 [ 53.734277][ T5090] ? __rtnl_newlink+0x1840/0x1840 [ 53.739303][ T5090] rtnetlink_rcv_msg+0x43d/0xd50 [ 53.744248][ T5090] ? rtnl_stats_set+0x4d0/0x4d0 [ 53.749147][ T5090] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.755227][ T5090] ? do_syscall_64+0x39/0xb0 [ 53.759856][ T5090] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.766111][ T5090] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.772094][ T5090] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.778077][ T5090] netlink_rcv_skb+0x165/0x440 [ 53.782843][ T5090] ? rtnl_stats_set+0x4d0/0x4d0 [ 53.787719][ T5090] ? netlink_ack+0x1360/0x1360 [ 53.792507][ T5090] ? netlink_deliver_tap+0x1b1/0xcf0 [ 53.797880][ T5090] netlink_unicast+0x547/0x7f0 [ 53.802661][ T5090] ? netlink_attachskb+0x890/0x890 [ 53.807793][ T5090] ? __virt_addr_valid+0x61/0x2e0 [ 53.812818][ T5090] ? __phys_addr_symbol+0x30/0x70 [ 53.817839][ T5090] ? __check_object_size+0x333/0x6e0 [ 53.823122][ T5090] netlink_sendmsg+0x925/0xe30 [ 53.828017][ T5090] ? netlink_unicast+0x7f0/0x7f0 [ 53.833001][ T5090] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 53.838282][ T5090] ? netlink_unicast+0x7f0/0x7f0 [ 53.843222][ T5090] sock_sendmsg+0xde/0x190 [ 53.847640][ T5090] __sys_sendto+0x23a/0x340 [ 53.852160][ T5090] ? __ia32_sys_getpeername+0xb0/0xb0 [ 53.857661][ T5090] ? restore_fpregs_from_fpstate+0xc1/0x1c0 [ 53.863567][ T5090] __x64_sys_sendto+0xe1/0x1b0 [ 53.868346][ T5090] ? syscall_enter_from_user_mode+0x26/0xb0 [ 53.874280][ T5090] do_syscall_64+0x39/0xb0 [ 53.878689][ T5090] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.884586][ T5090] RIP: 0033:0x7ffa9e43e12c [ 53.888990][ T5090] 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 [ 53.909138][ T5090] RSP: 002b:00007ffc2e310390 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 53.917545][ T5090] RAX: ffffffffffffffda RBX: 00007ffa9f0d4620 RCX: 00007ffa9e43e12c [ 53.925599][ T5090] RDX: 000000000000002c RSI: 00007ffa9f0d4670 RDI: 0000000000000003 [ 53.933558][ T5090] RBP: 0000000000000000 R08: 00007ffc2e3103e4 R09: 000000000000000c [ 53.941693][ T5090] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 53.949652][ T5090] R13: 00007ffa9f0d4670 R14: 0000000000000003 R15: 0000000000000000 [ 53.957729][ T5090] [ 53.987240][ T5090] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.994454][ T5090] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.002630][ T5090] bridge_slave_0: entered allmulticast mode [ 54.009190][ T5090] bridge_slave_0: entered promiscuous mode [ 54.017628][ T5090] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.025655][ T5090] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.033032][ T5090] bridge_slave_1: entered allmulticast mode [ 54.039683][ T5090] bridge_slave_1: entered promiscuous mode [ 54.060458][ T5090] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.071540][ T5090] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.095542][ T5090] team0: Port device team_slave_0 added [ 54.104246][ T5090] team0: Port device team_slave_1 added [ 54.121987][ T5090] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.128947][ T5090] 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. [ 54.154946][ T5090] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.167627][ T5090] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.174780][ T5090] 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. [ 54.200879][ T5090] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.232098][ T5090] hsr_slave_0: entered promiscuous mode [ 54.238292][ T5090] hsr_slave_1: entered promiscuous mode [ 54.326116][ T5090] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.336705][ T5090] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.346676][ T5090] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.356153][ T5090] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.378023][ T5090] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.385270][ T5090] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.393594][ T5090] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.401087][ T5090] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.448053][ T5090] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.460983][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.471672][ T5088] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.480364][ T5088] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.490431][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.504760][ T5090] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.515986][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.525058][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.533656][ T5088] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.540967][ T5088] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.562432][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.570995][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.580163][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.587412][ T5088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.595316][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 54.604553][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 54.613584][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 54.623799][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 54.632293][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 54.641471][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.650153][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 54.658567][ T5088] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.670278][ T5090] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.685632][ T5090] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.695216][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.703292][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 54.711953][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.845089][ T5090] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.852976][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.860392][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.877647][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 54.887550][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.905154][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 54.914667][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.924857][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.933371][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.942706][ T5090] veth0_vlan: entered promiscuous mode [ 54.953954][ T5090] veth1_vlan: entered promiscuous mode [ 54.972328][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.980408][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.989590][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 54.998314][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 55.009694][ T5090] veth0_macvtap: entered promiscuous mode [ 55.018908][ T5090] veth1_macvtap: entered promiscuous mode [ 55.033888][ T5090] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 55.041313][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 55.052604][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 55.060689][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 55.070714][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 55.081206][ T5090] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 55.092193][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 55.100720][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 55.110753][ T5090] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.120173][ T5090] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.129273][ T5090] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.138795][ T5090] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.203983][ T2845] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.219360][ T2845] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.232466][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 55.241291][ T2845] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.250315][ T2845] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.261490][ T5101] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2023/03/14 15:43:21 building call list... [ 55.362751][ T4399] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 57.200302][ T5080] 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. [ 57.378538][ T5080] can: request_module (can-proto-0) failed. [ 57.415366][ T5080] can: request_module (can-proto-0) failed. [ 57.449750][ T5080] can: request_module (can-proto-0) failed. [ 58.047710][ T11] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program