[ 31.799284] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.810385] device bridge_slave_0 left promiscuous mode [ 31.816229] bridge0: port 1(bridge_slave_0) entered disabled state [ 31.829951] device veth1_macvtap left promiscuous mode [ 31.835879] device veth0_macvtap left promiscuous mode [ 31.842068] device veth1_vlan left promiscuous mode [ 31.848105] device veth0_vlan left promiscuous mode [ 31.985145] bond0 (unregistering): Releasing backup interface bond_slave_1 [ 31.998925] bond0 (unregistering): Releasing backup interface bond_slave_0 [ 32.043492] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. 2021/01/07 23:17:38 parsed 1 programs 2021/01/07 23:17:38 executed programs: 0 [ 39.353304] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 39.373008] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 39.381756] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 39.392631] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 39.400682] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 39.409832] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 39.424586] IPVS: Creating netns size=2712 id=2 [ 39.429555] IPVS: ftp: loaded support on port[0] = 21 [ 39.492008] IPVS: Creating netns size=2712 id=3 [ 39.503644] IPVS: ftp: loaded support on port[0] = 21 [ 39.587665] chnl_net:caif_netlink_parms(): no params data found [ 39.629374] IPVS: Creating netns size=2712 id=4 [ 39.640999] IPVS: ftp: loaded support on port[0] = 21 [ 39.771864] chnl_net:caif_netlink_parms(): no params data found [ 39.810972] IPVS: Creating netns size=2712 id=5 [ 39.823941] IPVS: ftp: loaded support on port[0] = 21 [ 39.857580] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.864319] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.873710] device bridge_slave_0 entered promiscuous mode [ 39.888631] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.895097] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.903885] device bridge_slave_1 entered promiscuous mode [ 40.001808] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.013444] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.081206] IPVS: Creating netns size=2712 id=6 [ 40.097578] IPVS: ftp: loaded support on port[0] = 21 [ 40.100699] chnl_net:caif_netlink_parms(): no params data found [ 40.231870] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.240602] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.249819] device bridge_slave_0 entered promiscuous mode [ 40.289100] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.296783] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.305233] device bridge_slave_1 entered promiscuous mode [ 40.337134] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 40.345671] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 40.380577] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 40.400413] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.410271] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 40.421793] chnl_net:caif_netlink_parms(): no params data found [ 40.436650] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.486695] IPVS: Creating netns size=2712 id=7 [ 40.491623] IPVS: ftp: loaded support on port[0] = 21 [ 40.642380] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.649412] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.658373] device bridge_slave_0 entered promiscuous mode [ 40.666677] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 40.692667] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.699870] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.710424] device bridge_slave_1 entered promiscuous mode [ 40.733623] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 40.832345] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.841669] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 40.850605] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 40.885715] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.987492] chnl_net:caif_netlink_parms(): no params data found [ 41.000550] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.007724] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.016215] device bridge_slave_0 entered promiscuous mode [ 41.052770] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.059857] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.069284] device bridge_slave_1 entered promiscuous mode [ 41.082740] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 41.165944] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 41.198467] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.231372] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.257061] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.293095] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.387197] chnl_net:caif_netlink_parms(): no params data found [ 41.407961] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 41.461531] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 41.593315] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.601236] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.610476] device bridge_slave_0 entered promiscuous mode [ 41.639876] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.647238] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.656668] device bridge_slave_1 entered promiscuous mode [ 41.663622] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.720582] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.746648] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.762454] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 41.802523] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.901755] ------------[ cut here ]------------ [ 41.907242] WARNING: CPU: 0 PID: 7843 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x7b/0xa0 [ 41.916219] sysfs: cannot create duplicate filename '/class/macvtap/tap50' [ 41.924079] Kernel panic - not syncing: panic_on_warn set ... [ 41.924079] [ 41.931775] CPU: 0 PID: 7843 Comm: syz-executor.2 Not tainted 4.6.0-syzkaller #0 [ 41.939731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.949502] 0000000000000000 ffff8800b2146fc8 ffffffff82dab352 ffffffff8667aec0 [ 41.958505] ffff8800b21470a0 ffffffff8672c880 ffffffff818db72b 0000000000000009 [ 41.967656] ffff8800b2147090 ffffffff815c7a54 0000000041b58ab3 ffffffff8777b6e3 [ 41.976607] Call Trace: [ 41.979400] [] dump_stack+0x136/0x1d4 [ 41.985112] [] ? sysfs_warn_dup+0x7b/0xa0 [ 41.991066] [] panic+0x1af/0x348 [ 41.996452] [] ? to_vmem_altmap+0x125/0x125 [ 42.002830] [] ? sysfs_warn_dup+0x7b/0xa0 [ 42.009272] [] __warn+0x18d/0x1b0 [ 42.014556] [] warn_slowpath_fmt+0x92/0xb0 [ 42.020933] [] ? __warn+0x1b0/0x1b0 [ 42.026289] [] ? kernfs_path_from_node+0x4a/0x60 [ 42.033289] [] sysfs_warn_dup+0x7b/0xa0 [ 42.039125] [] sysfs_do_create_link_sd.isra.0+0xd1/0xf0 [ 42.047985] [] sysfs_create_link+0x43/0xb0 [ 42.054394] [] device_add+0x6a1/0x1400 [ 42.060022] [] ? device_private_init+0x180/0x180 [ 42.066735] [] ? kfree_const+0x1d/0x20 [ 42.072264] [] ? kobject_set_name_vargs+0xb4/0x130 [ 42.079947] [] device_create_groups_vargs+0x1c8/0x220 [ 42.087343] [] device_create+0x88/0xa0 [ 42.093230] [] ? device_create_vargs+0x20/0x20 [ 42.099940] [] ? macvlan_set_mac_address+0x150/0x150 [ 42.106920] [] macvtap_device_event+0x1c4/0x2a0 [ 42.113406] [] notifier_call_chain+0x8b/0x170 [ 42.120256] [] raw_notifier_call_chain+0x11/0x20 [ 42.127288] [] call_netdevice_notifiers_info+0x47/0x80 [ 42.135329] [] register_netdevice+0x8e8/0xd00 [ 42.141996] [] ? netdev_change_features+0x80/0x80 [ 42.148897] [] ? dev_get_nest_level+0x10c/0x1a0 [ 42.155404] [] macvlan_common_newlink+0x8b9/0x1090 [ 42.162090] [] macvtap_newlink+0xbf/0x110 [ 42.169298] [] ? __netlink_ns_capable+0xc7/0xf0 [ 42.176557] [] rtnl_newlink+0xd4b/0x1230 [ 42.183638] [] ? rtnl_link_ops_get+0x5d/0x90 [ 42.190543] [] ? rtnl_newlink+0x319/0x1230 [ 42.197229] [] ? rtnl_setlink+0x2f0/0x2f0 [ 42.203502] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.210504] [] ? deactivate_slab+0x51e/0x790 [ 42.216805] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 42.223683] [] ? deactivate_slab+0x74b/0x790 [ 42.229982] [] ? do_raw_spin_unlock+0x163/0x250 [ 42.236378] [] ? __lock_acquire+0x15c3/0x5990 [ 42.242782] [] ? __lock_acquire+0x9c9/0x5990 [ 42.248923] [] ? __netlink_ns_capable+0xc7/0xf0 [ 42.255665] [] rtnetlink_rcv_msg+0x222/0x680 [ 42.262221] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 42.270045] [] ? rtnetlink_rcv+0x30/0x30 [ 42.275990] [] ? mutex_lock_nested+0x5fd/0xb30 [ 42.283195] [] ? rtnetlink_rcv+0x16/0x30 [ 42.289198] [] ? netlink_seq_start+0xe0/0xe0 [ 42.295653] [] ? netlink_deliver_tap+0x73/0x850 [ 42.302066] [] netlink_rcv_skb+0x242/0x350 [ 42.308126] [] ? rtnetlink_rcv+0x30/0x30 [ 42.314177] [] rtnetlink_rcv+0x25/0x30 [ 42.319704] [] netlink_unicast+0x3da/0x560 [ 42.325671] [] ? netlink_sendskb+0x40/0x40 [ 42.331809] [] netlink_sendmsg+0x9bb/0xb40 [ 42.337845] [] ? nlmsg_notify+0xf0/0xf0 [ 42.344080] [] ? __might_fault+0xf1/0x1b0 [ 42.350269] [] ? nlmsg_notify+0xf0/0xf0 [ 42.356517] [] sock_sendmsg+0xb5/0xf0 [ 42.362060] [] SyS_sendto+0x1ca/0x290 [ 42.367534] [] ? SyS_getpeername+0x240/0x240 [ 42.373932] [] ? mntput_no_expire+0xce/0x600 [ 42.380249] [] ? mnt_get_count+0x1c0/0x1c0 [ 42.386522] [] ? mntput+0x52/0x70 [ 42.392123] [] ? task_work_run+0x14a/0x200 [ 42.398409] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 42.405809] [] ? trace_hardirqs_on_thunk+0x1b/0x1d [ 42.412684] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 42.421169] Kernel Offset: disabled