[ 30.134377] bridge0: port 2(bridge_slave_1) entered disabled state [ 30.144405] device bridge_slave_0 left promiscuous mode [ 30.150793] bridge0: port 1(bridge_slave_0) entered disabled state [ 30.160346] device veth1_macvtap left promiscuous mode [ 30.165645] device veth0_macvtap left promiscuous mode [ 30.171367] device veth1_vlan left promiscuous mode [ 30.177345] device veth0_vlan left promiscuous mode [ 30.311013] bond0 (unregistering): Releasing backup interface bond_slave_1 [ 30.323532] bond0 (unregistering): Releasing backup interface bond_slave_0 [ 30.357542] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.15.202' (ECDSA) to the list of known hosts. 2021/01/15 09:34:29 parsed 1 programs 2021/01/15 09:34:29 executed programs: 0 [ 37.110295] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 37.146093] IPVS: Creating netns size=2712 id=2 [ 37.147425] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 37.154673] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 37.155970] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 37.158212] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 37.160630] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 37.190163] IPVS: ftp: loaded support on port[0] = 21 [ 37.245803] IPVS: Creating netns size=2712 id=3 [ 37.250597] IPVS: ftp: loaded support on port[0] = 21 [ 37.333079] chnl_net:caif_netlink_parms(): no params data found [ 37.368675] IPVS: Creating netns size=2712 id=4 [ 37.375583] IPVS: ftp: loaded support on port[0] = 21 [ 37.492952] chnl_net:caif_netlink_parms(): no params data found [ 37.498090] IPVS: Creating netns size=2712 id=5 [ 37.498157] IPVS: ftp: loaded support on port[0] = 21 [ 37.575239] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.581952] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.590639] device bridge_slave_0 entered promiscuous mode [ 37.621872] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.629060] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.638528] device bridge_slave_1 entered promiscuous mode [ 37.706526] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 37.721970] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 37.727691] IPVS: Creating netns size=2712 id=6 [ 37.727750] IPVS: ftp: loaded support on port[0] = 21 [ 37.795329] chnl_net:caif_netlink_parms(): no params data found [ 37.891073] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.898687] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.908335] device bridge_slave_0 entered promiscuous mode [ 37.920635] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 37.929071] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.935879] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.944245] device bridge_slave_1 entered promiscuous mode [ 37.994596] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 38.028617] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 38.053165] IPVS: Creating netns size=2712 id=7 [ 38.058776] IPVS: ftp: loaded support on port[0] = 21 [ 38.071935] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 38.080741] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 38.119066] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 38.140422] chnl_net:caif_netlink_parms(): no params data found [ 38.241056] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 38.252113] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 38.378598] chnl_net:caif_netlink_parms(): no params data found [ 38.397546] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 38.406445] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.413280] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.421129] device bridge_slave_0 entered promiscuous mode [ 38.449628] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 38.457609] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.464702] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.473292] device bridge_slave_1 entered promiscuous mode [ 38.586641] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 38.630236] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 38.663780] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.670625] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.678921] device bridge_slave_0 entered promiscuous mode [ 38.702605] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 38.709882] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.716393] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.724759] device bridge_slave_1 entered promiscuous mode [ 38.746659] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 38.789190] chnl_net:caif_netlink_parms(): no params data found [ 38.852610] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 38.894539] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 38.920593] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 38.928948] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 38.964809] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.971196] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.979534] device bridge_slave_0 entered promiscuous mode [ 38.998719] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 39.038207] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.046068] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.054205] device bridge_slave_1 entered promiscuous mode [ 39.108591] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 39.119435] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.157523] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.217298] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 39.316237] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.323331] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.332108] device bridge_slave_0 entered promiscuous mode [ 39.339570] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 39.367385] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 39.374987] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.382208] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.390249] device bridge_slave_1 entered promiscuous mode [ 39.397475] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.475811] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 39.506285] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 39.514871] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.528791] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.536402] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 39.555720] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.591867] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.628447] ------------[ cut here ]------------ [ 39.634151] WARNING: CPU: 0 PID: 7915 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x7b/0xa0 [ 39.643373] sysfs: cannot create duplicate filename '/class/macvtap/tap50' [ 39.650755] Kernel panic - not syncing: panic_on_warn set ... [ 39.650755] [ 39.658300] CPU: 0 PID: 7915 Comm: syz-executor.1 Not tainted 4.6.0-syzkaller #0 [ 39.665821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.675259] 0000000000000000 ffff8801365e6fc8 ffffffff82da4dd2 ffffffff8667aec0 [ 39.683384] ffff8801365e70a0 ffffffff8672c8c0 ffffffff818db72b 0000000000000009 [ 39.691508] ffff8801365e7090 ffffffff815c7a54 0000000041b58ab3 ffffffff87779893 [ 39.699951] Call Trace: [ 39.702527] [] dump_stack+0x136/0x1d4 [ 39.708475] [] ? sysfs_warn_dup+0x7b/0xa0 [ 39.714642] [] panic+0x1af/0x348 [ 39.719778] [] ? to_vmem_altmap+0x125/0x125 [ 39.725767] [] ? sysfs_warn_dup+0x7b/0xa0 [ 39.731675] [] __warn+0x18d/0x1b0 [ 39.736899] [] warn_slowpath_fmt+0x92/0xb0 [ 39.742937] [] ? __warn+0x1b0/0x1b0 [ 39.748213] [] ? kernfs_path_from_node+0x4a/0x60 [ 39.754703] [] sysfs_warn_dup+0x7b/0xa0 [ 39.760694] [] sysfs_do_create_link_sd.isra.0+0xd1/0xf0 [ 39.768374] [] sysfs_create_link+0x43/0xb0 [ 39.775097] [] device_add+0x6a1/0x1400 [ 39.781008] [] ? device_private_init+0x180/0x180 [ 39.787793] [] ? kfree_const+0x1d/0x20 [ 39.793649] [] ? kobject_set_name_vargs+0xb4/0x130 [ 39.800653] [] device_create_groups_vargs+0x1c8/0x220 [ 39.807614] [] device_create+0x88/0xa0 [ 39.813245] [] ? device_create_vargs+0x20/0x20 [ 39.819466] [] ? macvlan_set_mac_address+0x150/0x150 [ 39.826327] [] macvtap_device_event+0x1c4/0x2a0 [ 39.832723] [] notifier_call_chain+0x8b/0x170 [ 39.839015] [] raw_notifier_call_chain+0x11/0x20 [ 39.845398] [] call_netdevice_notifiers_info+0x47/0x80 [ 39.853038] [] register_netdevice+0x8e8/0xd00 [ 39.859193] [] ? netdev_change_features+0x80/0x80 [ 39.865980] [] ? dev_get_nest_level+0x10c/0x1a0 [ 39.872291] [] macvlan_common_newlink+0x8b9/0x1090 [ 39.878983] [] macvtap_newlink+0xbf/0x110 [ 39.885054] [] ? __netlink_ns_capable+0xc7/0xf0 [ 39.891481] [] rtnl_newlink+0xd4b/0x1230 [ 39.897512] [] ? rtnl_link_ops_get+0x5d/0x90 [ 39.903806] [] ? rtnl_newlink+0x319/0x1230 [ 39.909779] [] ? load_balance+0x967/0x1ee0 [ 39.916617] [] ? rtnl_setlink+0x2f0/0x2f0 [ 39.922411] [] ? find_busiest_group+0x2510/0x2510 [ 39.929378] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.936558] [] ? __netlink_ns_capable+0xc7/0xf0 [ 39.942917] [] rtnetlink_rcv_msg+0x222/0x680 [ 39.948996] [] ? rtnetlink_rcv+0x30/0x30 [ 39.954787] [] ? mutex_lock_nested+0x5fd/0xb30 [ 39.961092] [] ? rtnetlink_rcv+0x16/0x30 [ 39.966883] [] ? netlink_seq_start+0xe0/0xe0 [ 39.973284] [] netlink_rcv_skb+0x242/0x350 [ 39.979332] [] ? rtnetlink_rcv+0x30/0x30 [ 39.985529] [] rtnetlink_rcv+0x25/0x30 [ 39.991127] [] netlink_unicast+0x3da/0x560 [ 39.997075] [] ? netlink_sendskb+0x40/0x40 [ 40.003114] [] netlink_sendmsg+0x9bb/0xb40 [ 40.008972] [] ? nlmsg_notify+0xf0/0xf0 [ 40.014620] [] ? __might_fault+0xf1/0x1b0 [ 40.020481] [] ? security_socket_sendmsg+0x6a/0xa0 [ 40.027156] [] ? nlmsg_notify+0xf0/0xf0 [ 40.033015] [] sock_sendmsg+0xb5/0xf0 [ 40.038613] [] SyS_sendto+0x1ca/0x290 [ 40.047272] [] ? SyS_getpeername+0x240/0x240 [ 40.053511] [] ? mntput_no_expire+0xce/0x600 [ 40.059646] [] ? mnt_get_count+0x1c0/0x1c0 [ 40.065894] [] ? mntput+0x52/0x70 [ 40.071076] [] ? task_work_run+0x14a/0x200 [ 40.077111] [] ? trace_hardirqs_off+0xd/0x10 [ 40.083495] [] ? exit_to_usermode_loop+0x112/0x1c0 [ 40.090304] [] ? trace_hardirqs_on_thunk+0x1b/0x1d [ 40.096870] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 40.103559] Kernel Offset: disabled