Warning: Permanently added '10.128.1.45' (ECDSA) to the list of known hosts. 2020/08/08 14:53:48 parsed 1 programs 2020/08/08 14:53:48 executed programs: 0 [ 54.254856] audit: type=1400 audit(1596898428.753:10): avc: denied { execmem } for pid=5872 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 54.348363] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 54.360294] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 54.384935] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 54.396091] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 54.397284] IPVS: Creating netns size=2712 id=2 [ 54.397420] IPVS: ftp: loaded support on port[0] = 21 [ 54.421934] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 54.440725] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 54.514514] IPVS: Creating netns size=2712 id=3 [ 54.520484] IPVS: ftp: loaded support on port[0] = 21 [ 54.689005] chnl_net:caif_netlink_parms(): no params data found [ 54.724342] IPVS: Creating netns size=2712 id=4 [ 54.731082] IPVS: ftp: loaded support on port[0] = 21 [ 54.954873] chnl_net:caif_netlink_parms(): no params data found [ 54.995525] IPVS: Creating netns size=2712 id=5 [ 55.000912] IPVS: ftp: loaded support on port[0] = 21 [ 55.150575] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.159452] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.174001] device bridge_slave_0 entered promiscuous mode [ 55.205054] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.211903] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.223946] device bridge_slave_1 entered promiscuous mode [ 55.337814] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.373989] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.420467] IPVS: Creating netns size=2712 id=6 [ 55.428093] IPVS: ftp: loaded support on port[0] = 21 [ 55.479859] chnl_net:caif_netlink_parms(): no params data found [ 55.606300] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.615255] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.626810] device bridge_slave_0 entered promiscuous mode [ 55.685156] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.693031] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.705746] device bridge_slave_1 entered promiscuous mode [ 55.870068] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 55.891728] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.904915] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 55.915573] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 55.926514] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 55.930953] IPVS: Creating netns size=2712 id=7 [ 55.931088] IPVS: ftp: loaded support on port[0] = 21 [ 55.980298] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 56.170864] chnl_net:caif_netlink_parms(): no params data found [ 56.209100] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 56.247568] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 56.477074] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.487176] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.499111] device bridge_slave_0 entered promiscuous mode [ 56.520407] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.554046] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.562014] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.572107] device bridge_slave_1 entered promiscuous mode [ 56.611954] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.677908] chnl_net:caif_netlink_parms(): no params data found [ 56.739398] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 56.754875] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 56.885135] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 56.894485] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 57.098701] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.106991] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.118546] device bridge_slave_0 entered promiscuous mode [ 57.183094] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.189797] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.201501] device bridge_slave_1 entered promiscuous mode [ 57.336557] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 57.379650] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 57.390756] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 57.402278] chnl_net:caif_netlink_parms(): no params data found [ 57.465800] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 57.620589] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.630982] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.644364] device bridge_slave_0 entered promiscuous mode [ 57.655469] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.664698] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.676283] device bridge_slave_1 entered promiscuous mode [ 57.808661] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 57.892892] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 57.904746] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 57.957758] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 57.970039] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 58.028057] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 58.040043] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 58.224491] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 58.304853] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 58.329686] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.338198] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.348468] device bridge_slave_0 entered promiscuous mode [ 58.382275] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 58.403787] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.411082] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.423562] device bridge_slave_1 entered promiscuous mode [ 58.545297] ------------[ cut here ]------------ [ 58.551655] WARNING: CPU: 1 PID: 5876 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x7b/0xa0 [ 58.561151] sysfs: cannot create duplicate filename '/class/macvtap/tap50' [ 58.569189] Kernel panic - not syncing: panic_on_warn set ... [ 58.569189] [ 58.577003] CPU: 1 PID: 5876 Comm: syz-executor.0 Not tainted 4.6.0-syzkaller #0 [ 58.585438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.595683] 0000000000000000 ffff8800b9e5efc8 ffffffff82c65e52 ffffffff85c81040 [ 58.605072] ffff8800b9e5f0a0 ffffffff85d2bb80 ffffffff8191bd7b 0000000000000009 [ 58.614181] ffff8800b9e5f090 ffffffff8160d884 0000000041b58ab3 ffffffff868f8c5a [ 58.623749] Call Trace: [ 58.626488] [] dump_stack+0x136/0x1d4 [ 58.632202] [] ? sysfs_warn_dup+0x7b/0xa0 [ 58.638331] [] panic+0x1af/0x348 [ 58.643655] [] ? to_vmem_altmap+0x125/0x125 [ 58.650449] [] ? sysfs_warn_dup+0x7b/0xa0 [ 58.656502] [] __warn+0x18d/0x1b0 [ 58.662090] [] warn_slowpath_fmt+0x92/0xb0 [ 58.669142] [] ? __warn+0x1b0/0x1b0 [ 58.674709] [] ? kernfs_path_from_node+0x4a/0x60 [ 58.681758] [] sysfs_warn_dup+0x7b/0xa0 [ 58.687895] [] sysfs_do_create_link_sd.isra.0+0xd1/0xf0 [ 58.695277] [] sysfs_create_link+0x43/0xb0 [ 58.701511] [] device_add+0x677/0x1350 [ 58.707851] [] ? device_private_init+0x180/0x180 [ 58.714973] [] ? kfree_const+0x1d/0x20 [ 58.721584] [] ? kobject_set_name_vargs+0xb4/0x130 [ 58.729332] [] device_create_groups_vargs+0x1c8/0x220 [ 58.737110] [] device_create+0x88/0xa0 [ 58.742828] [] ? device_create_vargs+0x20/0x20 [ 58.749212] [] ? macvlan_set_mac_address+0x150/0x150 [ 58.756324] [] macvtap_device_event+0x1c4/0x2a0 [ 58.762702] [] notifier_call_chain+0x8b/0x170 [ 58.768890] [] raw_notifier_call_chain+0x11/0x20 [ 58.775354] [] call_netdevice_notifiers_info+0x47/0x80 [ 58.782385] [] register_netdevice+0x8e8/0xd00 [ 58.789366] [] ? netdev_change_features+0x80/0x80 [ 58.795887] [] ? dev_get_nest_level+0x10c/0x1a0 [ 58.802229] [] macvlan_common_newlink+0x8b9/0x1090 [ 58.808803] [] macvtap_newlink+0xbf/0x110 [ 58.815352] [] ? __netlink_ns_capable+0xc7/0xf0 [ 58.821862] [] rtnl_newlink+0xd4b/0x1230 [ 58.827821] [] ? rtnl_link_ops_get+0x5d/0x90 [ 58.835675] [] ? rtnl_newlink+0x319/0x1230 [ 58.841612] [] ? load_balance+0x967/0x1ef0 [ 58.847517] [] ? rtnl_setlink+0x2f0/0x2f0 [ 58.853408] [] ? avc_has_perm_noaudit+0x148/0x270 [ 58.859898] [] ? avc_has_perm_noaudit+0x165/0x270 [ 58.868214] [] ? avc_has_perm_noaudit+0x69/0x270 [ 58.874738] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 58.881790] [] ? cred_has_capability.isra.35+0xe9/0x1d0 [ 58.889364] [] ? __netlink_ns_capable+0xc7/0xf0 [ 58.895958] [] rtnetlink_rcv_msg+0x222/0x680 [ 58.902441] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 58.910389] [] ? rtnetlink_rcv+0x30/0x30 [ 58.916112] [] ? mutex_lock_nested+0x5fd/0xb30 [ 58.922379] [] ? rtnetlink_rcv+0x16/0x30 [ 58.928293] [] ? netlink_seq_start+0xe0/0xe0 [ 58.935081] [] netlink_rcv_skb+0x242/0x350 [ 58.946342] [] ? rtnetlink_rcv+0x30/0x30 [ 58.952083] [] rtnetlink_rcv+0x25/0x30 [ 58.957799] [] netlink_unicast+0x3da/0x560 [ 58.963739] [] ? netlink_sendskb+0x40/0x40 [ 58.969764] [] netlink_sendmsg+0x9bb/0xb40 [ 58.975678] [] ? nlmsg_notify+0xf0/0xf0 [ 58.981318] [] ? selinux_socket_sendmsg+0x3a/0x50 [ 58.987857] [] ? security_socket_sendmsg+0x6a/0xa0 [ 58.994467] [] ? nlmsg_notify+0xf0/0xf0 [ 59.000132] [] sock_sendmsg+0xb5/0xf0 [ 59.005654] [] SyS_sendto+0x1ca/0x290 [ 59.011263] [] ? SyS_getpeername+0x240/0x240 [ 59.017351] [] ? mntput_no_expire+0xce/0x600 [ 59.024187] [] ? mnt_get_count+0x1c0/0x1c0 [ 59.030359] [] ? mntput+0x52/0x70 [ 59.035839] [] ? task_work_run+0x14a/0x200 [ 59.041820] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 59.048970] [] ? trace_hardirqs_on_thunk+0x1b/0x1d [ 59.055737] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 59.064131] Kernel Offset: disabled