[ 32.393216] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.410121] device bridge_slave_0 left promiscuous mode [ 32.416155] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.429639] device veth1_macvtap left promiscuous mode [ 32.436169] device veth0_macvtap left promiscuous mode [ 32.441885] device veth1_vlan left promiscuous mode [ 32.447535] device veth0_vlan left promiscuous mode [ 32.577602] bond0 (unregistering): Releasing backup interface bond_slave_1 [ 32.593331] bond0 (unregistering): Releasing backup interface bond_slave_0 [ 32.635537] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.10.27' (ECDSA) to the list of known hosts. 2021/01/07 02:47:32 parsed 1 programs 2021/01/07 02:47:32 executed programs: 0 [ 40.135244] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 40.154612] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 40.169005] IPVS: Creating netns size=2712 id=2 [ 40.169086] IPVS: ftp: loaded support on port[0] = 21 [ 40.184189] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 40.192885] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 40.204715] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 40.214318] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 40.269058] IPVS: Creating netns size=2712 id=3 [ 40.276712] IPVS: ftp: loaded support on port[0] = 21 [ 40.369244] chnl_net:caif_netlink_parms(): no params data found [ 40.411152] IPVS: Creating netns size=2712 id=4 [ 40.421962] IPVS: ftp: loaded support on port[0] = 21 [ 40.546475] chnl_net:caif_netlink_parms(): no params data found [ 40.594018] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.600809] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.610045] device bridge_slave_0 entered promiscuous mode [ 40.618012] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.624771] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.630923] IPVS: Creating netns size=2712 id=5 [ 40.631023] IPVS: ftp: loaded support on port[0] = 21 [ 40.646096] device bridge_slave_1 entered promiscuous mode [ 40.734519] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.745984] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.853297] IPVS: Creating netns size=2712 id=6 [ 40.858420] IPVS: ftp: loaded support on port[0] = 21 [ 40.941174] chnl_net:caif_netlink_parms(): no params data found [ 40.953190] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.959857] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.968728] device bridge_slave_0 entered promiscuous mode [ 41.006082] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.012887] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.021348] device bridge_slave_1 entered promiscuous mode [ 41.100165] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 41.137874] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 41.158161] chnl_net:caif_netlink_parms(): no params data found [ 41.175755] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.184762] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.192737] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.208934] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.256024] IPVS: Creating netns size=2712 id=7 [ 41.264197] IPVS: ftp: loaded support on port[0] = 21 [ 41.396999] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 41.454511] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 41.533603] chnl_net:caif_netlink_parms(): no params data found [ 41.578784] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.587533] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.594867] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.604122] device bridge_slave_0 entered promiscuous mode [ 41.612406] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.619068] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.628114] device bridge_slave_1 entered promiscuous mode [ 41.635081] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.642318] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.650445] device bridge_slave_0 entered promiscuous mode [ 41.663080] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.710295] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.717837] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.726680] device bridge_slave_1 entered promiscuous mode [ 41.825811] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.903697] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.929481] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.939078] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 41.973488] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.982475] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.101955] chnl_net:caif_netlink_parms(): no params data found [ 42.132827] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.139521] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.148807] device bridge_slave_0 entered promiscuous mode [ 42.228028] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.235908] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.245372] device bridge_slave_1 entered promiscuous mode [ 42.333708] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.350057] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.359167] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.374492] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.396684] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.405386] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.503972] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.535695] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.593261] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.655013] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.663240] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.669946] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.679995] device bridge_slave_0 entered promiscuous mode [ 42.704860] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.712480] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.719330] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.728365] device bridge_slave_1 entered promiscuous mode [ 42.735752] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.771471] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.849491] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.897558] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.944110] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.988808] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.997269] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 43.071861] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.120678] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 43.138933] ------------[ cut here ]------------ [ 43.143993] WARNING: CPU: 0 PID: 7934 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x7b/0xa0 [ 43.154083] sysfs: cannot create duplicate filename '/class/macvtap/tap50' [ 43.161443] Kernel panic - not syncing: panic_on_warn set ... [ 43.161443] [ 43.169082] CPU: 0 PID: 7934 Comm: syz-executor.0 Not tainted 4.6.0-syzkaller #0 [ 43.176602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.186328] 0000000000000000 ffff88013757efc8 ffffffff82dab352 ffffffff8667aec0 [ 43.194707] ffff88013757f0a0 ffffffff8672c880 ffffffff818db72b 0000000000000009 [ 43.203220] ffff88013757f090 ffffffff815c7a54 0000000041b58ab3 ffffffff8777b6e3 [ 43.211496] Call Trace: [ 43.215590] [] dump_stack+0x136/0x1d4 [ 43.221305] [] ? sysfs_warn_dup+0x7b/0xa0 [ 43.227460] [] panic+0x1af/0x348 [ 43.232565] [] ? to_vmem_altmap+0x125/0x125 [ 43.238609] [] ? sysfs_warn_dup+0x7b/0xa0 [ 43.244483] [] __warn+0x18d/0x1b0 [ 43.249573] [] warn_slowpath_fmt+0x92/0xb0 [ 43.255763] [] ? __warn+0x1b0/0x1b0 [ 43.261263] [] ? kernfs_path_from_node+0x4a/0x60 [ 43.268072] [] sysfs_warn_dup+0x7b/0xa0 [ 43.273871] [] sysfs_do_create_link_sd.isra.0+0xd1/0xf0 [ 43.281656] [] sysfs_create_link+0x43/0xb0 [ 43.287863] [] device_add+0x6a1/0x1400 [ 43.293589] [] ? device_private_init+0x180/0x180 [ 43.300211] [] ? kfree_const+0x1d/0x20 [ 43.306099] [] ? kobject_set_name_vargs+0xb4/0x130 [ 43.312662] [] device_create_groups_vargs+0x1c8/0x220 [ 43.319497] [] device_create+0x88/0xa0 [ 43.325432] [] ? device_create_vargs+0x20/0x20 [ 43.331877] [] ? macvlan_set_mac_address+0x150/0x150 [ 43.339208] [] macvtap_device_event+0x1c4/0x2a0 [ 43.345532] [] notifier_call_chain+0x8b/0x170 [ 43.352313] [] raw_notifier_call_chain+0x11/0x20 [ 43.358793] [] call_netdevice_notifiers_info+0x47/0x80 [ 43.367922] [] register_netdevice+0x8e8/0xd00 [ 43.374402] [] ? netdev_change_features+0x80/0x80 [ 43.381077] [] ? dev_get_nest_level+0x10c/0x1a0 [ 43.387932] [] macvlan_common_newlink+0x8b9/0x1090 [ 43.395292] [] macvtap_newlink+0xbf/0x110 [ 43.401537] [] ? __netlink_ns_capable+0xc7/0xf0 [ 43.408310] [] rtnl_newlink+0xd4b/0x1230 [ 43.414288] [] ? rtnl_link_ops_get+0x5d/0x90 [ 43.420693] [] ? rtnl_newlink+0x319/0x1230 [ 43.426652] [] ? load_balance+0x967/0x1ee0 [ 43.432867] [] ? rtnl_setlink+0x2f0/0x2f0 [ 43.438747] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 43.445613] [] ? __lock_acquire+0x15c3/0x5990 [ 43.452327] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.459453] [] ? __netlink_ns_capable+0xc7/0xf0 [ 43.466151] [] rtnetlink_rcv_msg+0x222/0x680 [ 43.472445] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 43.479437] [] ? rtnetlink_rcv+0x30/0x30 [ 43.485332] [] ? mutex_lock_nested+0x5fd/0xb30 [ 43.492459] [] ? rtnetlink_rcv+0x16/0x30 [ 43.498337] [] ? netlink_seq_start+0xe0/0xe0 [ 43.504685] [] netlink_rcv_skb+0x242/0x350 [ 43.510898] [] ? rtnetlink_rcv+0x30/0x30 [ 43.516771] [] rtnetlink_rcv+0x25/0x30 [ 43.522303] [] netlink_unicast+0x3da/0x560 [ 43.528281] [] ? netlink_sendskb+0x40/0x40 [ 43.534249] [] netlink_sendmsg+0x9bb/0xb40 [ 43.540440] [] ? nlmsg_notify+0xf0/0xf0 [ 43.546331] [] ? __might_fault+0xf1/0x1b0 [ 43.552865] [] ? nlmsg_notify+0xf0/0xf0 [ 43.558815] [] sock_sendmsg+0xb5/0xf0 [ 43.564351] [] SyS_sendto+0x1ca/0x290 [ 43.569918] [] ? SyS_getpeername+0x240/0x240 [ 43.576187] [] ? mntput_no_expire+0xce/0x600 [ 43.582234] [] ? mnt_get_count+0x1c0/0x1c0 [ 43.588449] [] ? mntput+0x52/0x70 [ 43.593541] [] ? task_work_run+0x14a/0x200 [ 43.599938] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 43.607027] [] ? trace_hardirqs_on_thunk+0x1b/0x1d [ 43.613941] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 43.622426] Kernel Offset: disabled