[ 33.119843] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.130148] device bridge_slave_0 left promiscuous mode [ 33.135587] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.147413] device veth1_macvtap left promiscuous mode [ 33.153096] device veth0_macvtap left promiscuous mode [ 33.159053] device veth1_vlan left promiscuous mode [ 33.164182] device veth0_vlan left promiscuous mode [ 33.286500] bond0 (unregistering): Releasing backup interface bond_slave_1 [ 33.304234] bond0 (unregistering): Releasing backup interface bond_slave_0 [ 33.341524] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.10.39' (ECDSA) to the list of known hosts. 2020/12/05 16:51:09 parsed 1 programs 2020/12/05 16:51:09 executed programs: 0 [ 40.548082] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 40.573292] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 40.594598] IPVS: Creating netns size=2712 id=2 [ 40.599335] IPVS: ftp: loaded support on port[0] = 21 [ 40.606815] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 40.615486] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 40.628398] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 40.635526] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 40.683182] IPVS: Creating netns size=2712 id=3 [ 40.687930] IPVS: ftp: loaded support on port[0] = 21 [ 40.791539] chnl_net:caif_netlink_parms(): no params data found [ 40.802723] IPVS: Creating netns size=2712 id=4 [ 40.807944] IPVS: ftp: loaded support on port[0] = 21 [ 40.944089] chnl_net:caif_netlink_parms(): no params data found [ 40.973739] IPVS: Creating netns size=2712 id=5 [ 40.984293] IPVS: ftp: loaded support on port[0] = 21 [ 41.132637] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.138970] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.147116] device bridge_slave_0 entered promiscuous mode [ 41.163217] chnl_net:caif_netlink_parms(): no params data found [ 41.175197] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.181759] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.189479] device bridge_slave_1 entered promiscuous mode [ 41.218950] IPVS: Creating netns size=2712 id=6 [ 41.230888] IPVS: ftp: loaded support on port[0] = 21 [ 41.302267] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.308605] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.317684] device bridge_slave_0 entered promiscuous mode [ 41.326848] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.354328] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.360824] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.368617] device bridge_slave_1 entered promiscuous mode [ 41.389373] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.455489] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.486964] IPVS: Creating netns size=2712 id=7 [ 41.492539] IPVS: ftp: loaded support on port[0] = 21 [ 41.521243] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.607214] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.613713] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.623062] device bridge_slave_0 entered promiscuous mode [ 41.688878] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.695309] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.703455] device bridge_slave_1 entered promiscuous mode [ 41.722546] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 41.730787] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 41.772001] chnl_net:caif_netlink_parms(): no params data found [ 41.784684] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.824090] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.838980] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.849279] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.974883] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.045844] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.053678] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.084095] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.116524] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.157140] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.244315] chnl_net:caif_netlink_parms(): no params data found [ 42.255983] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.263232] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.343695] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.350372] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.358092] device bridge_slave_0 entered promiscuous mode [ 42.365792] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.372668] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.381053] device bridge_slave_1 entered promiscuous mode [ 42.387213] chnl_net:caif_netlink_parms(): no params data found [ 42.405184] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.458198] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.531956] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.575307] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.746804] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.754458] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.762804] device bridge_slave_0 entered promiscuous mode [ 42.803637] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.810112] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.817941] device bridge_slave_1 entered promiscuous mode [ 42.896284] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.923326] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.931260] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.937615] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.945481] device bridge_slave_0 entered promiscuous mode [ 42.968520] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.976184] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.996975] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.006558] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.012994] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.021011] device bridge_slave_1 entered promiscuous mode [ 43.032923] ------------[ cut here ]------------ [ 43.037668] WARNING: CPU: 0 PID: 7877 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x7b/0xa0 [ 43.045599] sysfs: cannot create duplicate filename '/class/macvtap/tap50' [ 43.053002] Kernel panic - not syncing: panic_on_warn set ... [ 43.053002] [ 43.060340] CPU: 0 PID: 7877 Comm: syz-executor.2 Not tainted 4.6.0-syzkaller #0 [ 43.067842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.077168] 0000000000000000 ffff8800b6a46fc8 ffffffff82dab352 ffffffff8667aec0 [ 43.086622] ffff8800b6a470a0 ffffffff8672c8c0 ffffffff818db72b 0000000000000009 [ 43.094596] ffff8800b6a47090 ffffffff815c7a54 0000000041b58ab3 ffffffff8778fdc3 [ 43.102574] Call Trace: [ 43.105132] [] dump_stack+0x136/0x1d4 [ 43.110553] [] ? sysfs_warn_dup+0x7b/0xa0 [ 43.116320] [] panic+0x1af/0x348 [ 43.121305] [] ? to_vmem_altmap+0x125/0x125 [ 43.127244] [] ? sysfs_warn_dup+0x7b/0xa0 [ 43.133046] [] __warn+0x18d/0x1b0 [ 43.138143] [] warn_slowpath_fmt+0x92/0xb0 [ 43.144056] [] ? __warn+0x1b0/0x1b0 [ 43.149314] [] ? kernfs_path_from_node+0x4a/0x60 [ 43.155698] [] sysfs_warn_dup+0x7b/0xa0 [ 43.161293] [] sysfs_do_create_link_sd.isra.0+0xd1/0xf0 [ 43.168277] [] sysfs_create_link+0x43/0xb0 [ 43.174135] [] device_add+0x6a1/0x1400 [ 43.179650] [] ? device_private_init+0x180/0x180 [ 43.186025] [] ? kfree_const+0x1d/0x20 [ 43.191533] [] ? kobject_set_name_vargs+0xb4/0x130 [ 43.198081] [] device_create_groups_vargs+0x1c8/0x220 [ 43.204933] [] device_create+0x88/0xa0 [ 43.210538] [] ? device_create_vargs+0x20/0x20 [ 43.216745] [] ? macvlan_set_mac_address+0x150/0x150 [ 43.223477] [] macvtap_device_event+0x1c4/0x2a0 [ 43.229767] [] notifier_call_chain+0x8b/0x170 [ 43.235879] [] raw_notifier_call_chain+0x11/0x20 [ 43.242264] [] call_netdevice_notifiers_info+0x47/0x80 [ 43.249172] [] register_netdevice+0x8e8/0xd00 [ 43.255293] [] ? netdev_change_features+0x80/0x80 [ 43.261755] [] ? dev_get_nest_level+0x10c/0x1a0 [ 43.268042] [] macvlan_common_newlink+0x8b9/0x1090 [ 43.274591] [] macvtap_newlink+0xbf/0x110 [ 43.280361] [] ? __netlink_ns_capable+0xc7/0xf0 [ 43.286649] [] rtnl_newlink+0xd4b/0x1230 [ 43.292329] [] ? rtnl_link_ops_get+0x5d/0x90 [ 43.298388] [] ? rtnl_newlink+0x319/0x1230 [ 43.304242] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 43.310971] [] ? rtnl_setlink+0x2f0/0x2f0 [ 43.316736] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 43.323457] [] ? __lock_acquire+0x15c3/0x5990 [ 43.329586] [] ? cpuacct_charge+0x189/0x300 [ 43.335527] [] ? cpuacct_css_alloc+0x160/0x160 [ 43.341726] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.348715] [] ? __netlink_ns_capable+0xc7/0xf0 [ 43.355009] [] rtnetlink_rcv_msg+0x222/0x680 [ 43.361036] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 43.367841] [] ? rtnetlink_rcv+0x30/0x30 [ 43.373538] [] ? mutex_lock_nested+0x5fd/0xb30 [ 43.379747] [] ? rtnetlink_rcv+0x16/0x30 [ 43.385426] [] ? netlink_seq_start+0xe0/0xe0 [ 43.391464] [] netlink_rcv_skb+0x242/0x350 [ 43.397315] [] ? rtnetlink_rcv+0x30/0x30 [ 43.402996] [] rtnetlink_rcv+0x25/0x30 [ 43.408500] [] netlink_unicast+0x3da/0x560 [ 43.414363] [] ? netlink_sendskb+0x40/0x40 [ 43.420223] [] netlink_sendmsg+0x9bb/0xb40 [ 43.426077] [] ? nlmsg_notify+0xf0/0xf0 [ 43.431674] [] ? __might_fault+0xf1/0x1b0 [ 43.437444] [] ? nlmsg_notify+0xf0/0xf0 [ 43.443055] [] sock_sendmsg+0xb5/0xf0 [ 43.448476] [] SyS_sendto+0x1ca/0x290 [ 43.453899] [] ? SyS_getpeername+0x240/0x240 [ 43.459987] [] ? mntput_no_expire+0xce/0x600 [ 43.466016] [] ? mnt_get_count+0x1c0/0x1c0 [ 43.471871] [] ? mntput+0x52/0x70 [ 43.476945] [] ? task_work_run+0x14a/0x200 [ 43.482812] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 43.489620] [] ? trace_hardirqs_on_thunk+0x1b/0x1d [ 43.496206] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 43.503554] Kernel Offset: disabled