Warning: Permanently added '10.128.0.140' (ECDSA) to the list of known hosts. 2023/03/14 08:43:14 fuzzer started 2023/03/14 08:43:14 connecting to host at 10.128.0.169:43211 2023/03/14 08:43:14 checking machine... 2023/03/14 08:43:14 checking revisions... 2023/03/14 08:43:14 testing simple program... syzkaller login: [ 62.406011][ T5085] cgroup: Unknown subsys name 'net' [ 62.575917][ T5085] cgroup: Unknown subsys name 'rlimit' [ 62.677888][ T5080] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5080 'syz-fuzzer' [ 62.812839][ T5091] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 62.821491][ T5091] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 62.830021][ T5091] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 62.839044][ T5091] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 62.847080][ T5091] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 62.854836][ T5091] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 62.997313][ T5088] chnl_net:caif_netlink_parms(): no params data found [ 63.025051][ T5088] [ 63.027725][ T5088] ============================= [ 63.033825][ T5088] WARNING: suspicious RCU usage [ 63.038799][ T5088] 6.3.0-rc2-next-20230314-syzkaller #0 Not tainted [ 63.045453][ T5088] ----------------------------- [ 63.050707][ T5088] drivers/net/veth.c:1265 suspicious rcu_dereference_check() usage! [ 63.059804][ T5088] [ 63.059804][ T5088] other info that might help us debug this: [ 63.059804][ T5088] [ 63.070495][ T5088] [ 63.070495][ T5088] rcu_scheduler_active = 2, debug_locks = 1 [ 63.079394][ T5088] 1 lock held by syz-executor.0/5088: [ 63.084874][ T5088] #0: ffffffff8e109e48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 [ 63.094597][ T5088] [ 63.094597][ T5088] stack backtrace: [ 63.100695][ T5088] CPU: 1 PID: 5088 Comm: syz-executor.0 Not tainted 6.3.0-rc2-next-20230314-syzkaller #0 [ 63.110658][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 63.121701][ T5088] Call Trace: [ 63.124983][ T5088] [ 63.127923][ T5088] dump_stack_lvl+0x136/0x150 [ 63.132610][ T5088] lockdep_rcu_suspicious+0x208/0x3a0 [ 63.138032][ T5088] veth_set_xdp_features+0x1c7/0x250 [ 63.143348][ T5088] veth_newlink+0x729/0x9d0 [ 63.148340][ T5088] ? veth_set_features+0x1e0/0x1e0 [ 63.153488][ T5088] ? __rtnl_newlink+0xfd4/0x1840 [ 63.158547][ T5088] ? rtnl_newlink+0x68/0xa0 [ 63.163084][ T5088] ? rtnetlink_rcv_msg+0x43d/0xd50 [ 63.168291][ T5088] ? netlink_rcv_skb+0x165/0x440 [ 63.173230][ T5088] ? netlink_unicast+0x547/0x7f0 [ 63.178210][ T5088] ? netlink_sendmsg+0x925/0xe30 [ 63.183358][ T5088] ? sock_sendmsg+0xde/0x190 [ 63.187996][ T5088] ? __sys_sendto+0x23a/0x340 [ 63.192687][ T5088] ? __x64_sys_sendto+0xe1/0x1b0 [ 63.197663][ T5088] ? do_syscall_64+0x39/0xb0 [ 63.202312][ T5088] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.209895][ T5088] ? find_held_lock+0x2d/0x110 [ 63.214676][ T5088] ? __kmem_cache_alloc_node+0x48/0x320 [ 63.220343][ T5088] ? kvmalloc_node+0xa2/0x1a0 [ 63.225059][ T5088] ? rcu_read_lock_sched_held+0x3e/0x70 [ 63.230631][ T5088] ? trace_kmalloc+0xae/0x100 [ 63.235432][ T5088] ? __kmalloc_node+0x77/0xd0 [ 63.240151][ T5088] ? __xdp_rxq_info_reg+0x18d/0x340 [ 63.245425][ T5088] ? alloc_netdev_mqs+0xdce/0x1250 [ 63.250576][ T5088] ? rtnl_create_link+0x9d8/0xee0 [ 63.255620][ T5088] ? veth_set_features+0x1e0/0x1e0 [ 63.260837][ T5088] __rtnl_newlink+0x10c2/0x1840 [ 63.265713][ T5088] ? find_held_lock+0x2d/0x110 [ 63.270486][ T5088] ? rtnl_link_unregister+0x250/0x250 [ 63.275858][ T5088] ? __kmem_cache_alloc_node+0x48/0x320 [ 63.281444][ T5088] rtnl_newlink+0x68/0xa0 [ 63.285775][ T5088] ? __rtnl_newlink+0x1840/0x1840 [ 63.290903][ T5088] rtnetlink_rcv_msg+0x43d/0xd50 [ 63.295931][ T5088] ? rtnl_stats_set+0x4d0/0x4d0 [ 63.300819][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.306902][ T5088] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.313023][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.320676][ T5088] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.326864][ T5088] ? print_usage_bug.part.0+0x660/0x660 [ 63.332468][ T5088] netlink_rcv_skb+0x165/0x440 [ 63.337273][ T5088] ? rtnl_stats_set+0x4d0/0x4d0 [ 63.342168][ T5088] ? netlink_ack+0x1360/0x1360 [ 63.346988][ T5088] ? netlink_deliver_tap+0x1b1/0xcf0 [ 63.352435][ T5088] netlink_unicast+0x547/0x7f0 [ 63.357213][ T5088] ? netlink_attachskb+0x890/0x890 [ 63.362420][ T5088] ? __virt_addr_valid+0x61/0x2e0 [ 63.367487][ T5088] ? __phys_addr_symbol+0x30/0x70 [ 63.372520][ T5088] ? __check_object_size+0x333/0x6e0 [ 63.377820][ T5088] netlink_sendmsg+0x925/0xe30 [ 63.382621][ T5088] ? netlink_unicast+0x7f0/0x7f0 [ 63.387564][ T5088] ? __might_fault+0xb2/0x190 [ 63.392351][ T5088] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 63.397812][ T5088] ? netlink_unicast+0x7f0/0x7f0 [ 63.402807][ T5088] sock_sendmsg+0xde/0x190 [ 63.407238][ T5088] __sys_sendto+0x23a/0x340 [ 63.411860][ T5088] ? __ia32_sys_getpeername+0xb0/0xb0 [ 63.417382][ T5088] ? xfd_validate_state+0x5d/0x180 [ 63.422512][ T5088] __x64_sys_sendto+0xe1/0x1b0 [ 63.427281][ T5088] ? syscall_enter_from_user_mode+0x26/0xb0 [ 63.433197][ T5088] do_syscall_64+0x39/0xb0 [ 63.437721][ T5088] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 63.443709][ T5088] RIP: 0033:0x7fcfe5c3e12c [ 63.449088][ 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 [ 63.468886][ T5088] RSP: 002b:00007ffd169fba70 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 63.477311][ T5088] RAX: ffffffffffffffda RBX: 00007fcfe68d4620 RCX: 00007fcfe5c3e12c [ 63.485492][ T5088] RDX: 000000000000002c RSI: 00007fcfe68d4670 RDI: 0000000000000003 [ 63.493778][ T5088] RBP: 0000000000000000 R08: 00007ffd169fbac4 R09: 000000000000000c [ 63.501763][ T5088] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 63.509940][ T5088] R13: 00007fcfe68d4670 R14: 0000000000000003 R15: 0000000000000000 [ 63.518118][ T5088] [ 63.551256][ T5088] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.559613][ T5088] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.567242][ T5088] bridge_slave_0: entered allmulticast mode [ 63.574323][ T5088] bridge_slave_0: entered promiscuous mode [ 63.583448][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.590985][ T5088] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.598313][ T5088] bridge_slave_1: entered allmulticast mode [ 63.605096][ T5088] bridge_slave_1: entered promiscuous mode [ 63.631247][ T5088] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.643233][ T5088] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.669792][ T5088] team0: Port device team_slave_0 added [ 63.679411][ T5088] team0: Port device team_slave_1 added [ 63.701083][ T5088] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.708374][ 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. [ 63.735285][ T5088] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.749108][ T5088] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.756235][ 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. [ 63.782507][ T5088] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.815560][ T5088] hsr_slave_0: entered promiscuous mode [ 63.822815][ T5088] hsr_slave_1: entered promiscuous mode [ 63.923614][ T5088] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.935562][ T5088] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.947190][ T5088] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.958700][ T5088] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.985264][ T5088] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.992555][ T5088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.001009][ T5088] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.008193][ T5088] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.023259][ T2082] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.032827][ T2082] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.092657][ T5088] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.106804][ T2082] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.117251][ T2082] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.133486][ T5088] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.143640][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.154205][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.163987][ T5099] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.171174][ T5099] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.185641][ T2082] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.194666][ T2082] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.204802][ T2082] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.211988][ T2082] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.237015][ T5088] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.248075][ T5088] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.263832][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.273663][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.282906][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.292064][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.302117][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.312454][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.321436][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.330439][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.340588][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.349661][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.364409][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.373729][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.515761][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.524531][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.536980][ T5088] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.556684][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 64.566660][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.592214][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 64.602213][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.612135][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.620664][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.630693][ T5088] veth0_vlan: entered promiscuous mode [ 64.644503][ T5088] veth1_vlan: entered promiscuous mode [ 64.666266][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.675188][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.684784][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 64.693818][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.705788][ T5088] veth0_macvtap: entered promiscuous mode [ 64.719856][ T5088] veth1_macvtap: entered promiscuous mode [ 64.736220][ T5088] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.746677][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.755653][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 64.764074][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 64.773605][ T5100] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.786609][ T5088] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.795219][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.805527][ T5099] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.817976][ T5088] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.826981][ T5088] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.837067][ T5088] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.847614][ T5088] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.889289][ T4400] Bluetooth: hci0: command 0x0409 tx timeout [ 64.925335][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.936897][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.960289][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.971509][ T75] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.981301][ T75] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.990473][ T898] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2023/03/14 08:43:17 building call list... executing program [ 67.129118][ 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. [ 67.313815][ T5083] can: request_module (can-proto-0) failed. [ 67.352567][ T5083] can: request_module (can-proto-0) failed. [ 67.387766][ T5083] can: request_module (can-proto-0) failed. [ 68.129648][ T46] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program