Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts. 2020/04/17 13:36:23 parsed 1 programs 2020/04/17 13:36:23 executed programs: 0 [ 54.155556] audit: type=1400 audit(1587130583.419:10): avc: denied { execmem } for pid=5865 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 54.227367] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 54.250566] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 54.260228] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 54.273510] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 54.282286] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 54.291099] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 54.310040] IPVS: Creating netns size=2712 id=2 [ 54.315247] IPVS: ftp: loaded support on port[0] = 21 [ 54.394497] IPVS: Creating netns size=2712 id=3 [ 54.400697] IPVS: ftp: loaded support on port[0] = 21 [ 54.580617] chnl_net:caif_netlink_parms(): no params data found [ 54.580683] IPVS: Creating netns size=2712 id=4 [ 54.580809] IPVS: ftp: loaded support on port[0] = 21 [ 54.825096] IPVS: Creating netns size=2712 id=5 [ 54.837068] IPVS: ftp: loaded support on port[0] = 21 [ 54.874427] chnl_net:caif_netlink_parms(): no params data found [ 55.150688] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.158423] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.160819] IPVS: Creating netns size=2712 id=6 [ 55.160950] IPVS: ftp: loaded support on port[0] = 21 [ 55.180221] device bridge_slave_0 entered promiscuous mode [ 55.226052] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.233568] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.243563] device bridge_slave_1 entered promiscuous mode [ 55.265700] chnl_net:caif_netlink_parms(): no params data found [ 55.371087] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.491779] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 55.585790] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.593098] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.602881] device bridge_slave_0 entered promiscuous mode [ 55.651881] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.659768] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.671657] device bridge_slave_1 entered promiscuous mode [ 55.679852] chnl_net:caif_netlink_parms(): no params data found [ 55.693103] IPVS: Creating netns size=2712 id=7 [ 55.698118] IPVS: ftp: loaded support on port[0] = 21 [ 55.851249] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 55.911147] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 55.936769] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 56.000504] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 56.082783] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.089440] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.100449] device bridge_slave_0 entered promiscuous mode [ 56.108955] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.140185] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.146652] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.158676] device bridge_slave_1 entered promiscuous mode [ 56.165726] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.412106] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 56.424963] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 56.451395] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 56.462353] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 56.495089] chnl_net:caif_netlink_parms(): no params data found [ 56.625679] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 56.664692] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.672142] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.683304] device bridge_slave_0 entered promiscuous mode [ 56.692512] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 56.752521] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.759791] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.770547] device bridge_slave_1 entered promiscuous mode [ 57.046225] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 57.056110] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 57.095864] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 57.129265] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 57.137454] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 57.223728] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 57.233365] chnl_net:caif_netlink_parms(): no params data found [ 57.511760] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 57.552159] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.560221] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.571177] device bridge_slave_0 entered promiscuous mode [ 57.614902] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 57.645599] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.653318] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.663720] device bridge_slave_1 entered promiscuous mode [ 57.710336] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 57.764642] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 57.827934] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 57.880087] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 57.923239] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 58.020411] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 58.169569] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.176362] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.185315] device bridge_slave_0 entered promiscuous mode [ 58.208805] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 58.274931] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.282642] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.294114] device bridge_slave_1 entered promiscuous mode [ 58.424080] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 58.474877] ------------[ cut here ]------------ [ 58.479844] WARNING: CPU: 0 PID: 5868 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x7b/0xa0 [ 58.487937] sysfs: cannot create duplicate filename '/class/macvtap/tap50' [ 58.495239] Kernel panic - not syncing: panic_on_warn set ... [ 58.495239] [ 58.502697] CPU: 0 PID: 5868 Comm: syz-executor.4 Not tainted 4.6.0-syzkaller #0 [ 58.510248] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.522137] 0000000000000000 ffff8800b1146fc8 ffffffff82c65932 ffffffff85c81040 [ 58.530442] ffff8800b11470a0 ffffffff85d2bb00 ffffffff8191b86b 0000000000000009 [ 58.538479] ffff8800b1147090 ffffffff8160d374 0000000041b58ab3 ffffffff868f058a [ 58.547341] Call Trace: [ 58.550972] [] dump_stack+0x136/0x1d4 [ 58.557123] [] ? sysfs_warn_dup+0x7b/0xa0 [ 58.563210] [] panic+0x1af/0x348 [ 58.568532] [] ? to_vmem_altmap+0x125/0x125 [ 58.574785] [] ? sysfs_warn_dup+0x7b/0xa0 [ 58.581354] [] __warn+0x18d/0x1b0 [ 58.586885] [] warn_slowpath_fmt+0x92/0xb0 [ 58.592860] [] ? __warn+0x1b0/0x1b0 [ 58.599107] [] ? kernfs_path_from_node+0x4a/0x60 [ 58.605955] [] sysfs_warn_dup+0x7b/0xa0 [ 58.611853] [] sysfs_do_create_link_sd.isra.0+0xd1/0xf0 [ 58.620240] [] sysfs_create_link+0x43/0xb0 [ 58.628969] [] device_add+0x677/0x1350 [ 58.635160] [] ? device_private_init+0x180/0x180 [ 58.643087] [] ? kfree_const+0x1d/0x20 [ 58.649002] [] ? kobject_set_name_vargs+0xb4/0x130 [ 58.657139] [] device_create_groups_vargs+0x1c8/0x220 [ 58.664328] [] device_create+0x88/0xa0 [ 58.670694] [] ? device_create_vargs+0x20/0x20 [ 58.677219] [] ? macvlan_set_mac_address+0x150/0x150 [ 58.684668] [] macvtap_device_event+0x1c4/0x2a0 [ 58.691009] [] notifier_call_chain+0x8b/0x170 [ 58.697164] [] raw_notifier_call_chain+0x11/0x20 [ 58.703732] [] call_netdevice_notifiers_info+0x47/0x80 [ 58.710946] [] register_netdevice+0x8e8/0xd00 [ 58.717518] [] ? netdev_change_features+0x80/0x80 [ 58.725879] [] ? dev_get_nest_level+0x10c/0x1a0 [ 58.732297] [] macvlan_common_newlink+0x8b9/0x1090 [ 58.738867] [] macvtap_newlink+0xbf/0x110 [ 58.744742] [] ? __netlink_ns_capable+0xc7/0xf0 [ 58.751172] [] rtnl_newlink+0xd4b/0x1230 [ 58.757249] [] ? rtnl_link_ops_get+0x5d/0x90 [ 58.763392] [] ? rtnl_newlink+0x319/0x1230 [ 58.769271] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 58.776015] [] ? rtnl_setlink+0x2f0/0x2f0 [ 58.781809] [] ? avc_has_perm_noaudit+0x148/0x270 [ 58.788506] [] ? avc_has_perm_noaudit+0x165/0x270 [ 58.796075] [] ? avc_has_perm_noaudit+0x69/0x270 [ 58.802480] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 58.809486] [] ? cred_has_capability.isra.35+0xe9/0x1d0 [ 58.818902] [] ? __netlink_ns_capable+0xc7/0xf0 [ 58.825300] [] rtnetlink_rcv_msg+0x222/0x680 [ 58.831532] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 58.838565] [] ? rtnetlink_rcv+0x30/0x30 [ 58.844482] [] ? mutex_lock_nested+0x5fd/0xb30 [ 58.852214] [] ? rtnetlink_rcv+0x16/0x30 [ 58.858730] [] ? netlink_seq_start+0xe0/0xe0 [ 58.864786] [] netlink_rcv_skb+0x242/0x350 [ 58.870662] [] ? rtnetlink_rcv+0x30/0x30 [ 58.876370] [] rtnetlink_rcv+0x25/0x30 [ 58.884456] [] netlink_unicast+0x3da/0x560 [ 58.891851] [] ? netlink_sendskb+0x40/0x40 [ 58.898284] [] netlink_sendmsg+0x9bb/0xb40 [ 58.904370] [] ? nlmsg_notify+0xf0/0xf0 [ 58.909986] [] ? selinux_socket_sendmsg+0x3a/0x50 [ 58.916674] [] ? security_socket_sendmsg+0x6a/0xa0 [ 58.923246] [] ? nlmsg_notify+0xf0/0xf0 [ 58.928955] [] sock_sendmsg+0xb5/0xf0 [ 58.934522] [] SyS_sendto+0x1ca/0x290 [ 58.939999] [] ? SyS_getpeername+0x240/0x240 [ 58.946158] [] ? mntput_no_expire+0xce/0x600 [ 58.952215] [] ? mnt_get_count+0x1c0/0x1c0 [ 58.958109] [] ? mntput+0x52/0x70 [ 58.963291] [] ? task_work_run+0x14a/0x200 [ 58.969184] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 58.977056] [] ? trace_hardirqs_on_thunk+0x1b/0x1d [ 58.983632] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 58.991999] Kernel Offset: disabled