Warning: Permanently added '10.128.1.19' (ECDSA) to the list of known hosts. 2020/07/28 21:47:15 parsed 1 programs 2020/07/28 21:47:15 executed programs: 0 [ 50.383331] audit: type=1400 audit(1595972835.156:10): avc: denied { execmem } for pid=5863 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.423280] IPv6: ADDRCONF(NETDEV_CHANGE): nr3: link becomes ready [ 50.463540] IPv6: ADDRCONF(NETDEV_CHANGE): nr4: link becomes ready [ 50.475533] IPVS: Creating netns size=2712 id=2 [ 50.476523] IPv6: ADDRCONF(NETDEV_CHANGE): nr5: link becomes ready [ 50.481188] IPv6: ADDRCONF(NETDEV_CHANGE): nr1: link becomes ready [ 50.489018] IPv6: ADDRCONF(NETDEV_CHANGE): nr2: link becomes ready [ 50.494969] IPv6: ADDRCONF(NETDEV_CHANGE): nr0: link becomes ready [ 50.509488] IPVS: ftp: loaded support on port[0] = 21 [ 50.574794] IPVS: Creating netns size=2712 id=3 [ 50.580129] IPVS: ftp: loaded support on port[0] = 21 [ 50.714191] chnl_net:caif_netlink_parms(): no params data found [ 50.752285] IPVS: Creating netns size=2712 id=4 [ 50.757094] IPVS: ftp: loaded support on port[0] = 21 [ 50.939915] chnl_net:caif_netlink_parms(): no params data found [ 50.968718] IPVS: Creating netns size=2712 id=5 [ 50.974015] IPVS: ftp: loaded support on port[0] = 21 [ 51.084713] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.091526] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.101586] device bridge_slave_0 entered promiscuous mode [ 51.178736] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.185279] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.194600] device bridge_slave_1 entered promiscuous mode [ 51.274483] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 51.306007] IPVS: Creating netns size=2712 id=6 [ 51.308219] chnl_net:caif_netlink_parms(): no params data found [ 51.321623] IPVS: ftp: loaded support on port[0] = 21 [ 51.332262] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 51.463895] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.470746] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.479861] device bridge_slave_0 entered promiscuous mode [ 51.519945] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.526368] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.536057] device bridge_slave_1 entered promiscuous mode [ 51.708161] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 51.727317] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 51.748859] batman_adv: Unable to register the batman interface 'batadv0': -12 [ 51.766876] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 51.816128] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 51.833509] chnl_net:caif_netlink_parms(): no params data found [ 51.868337] IPVS: Creating netns size=2712 id=7 [ 51.874241] IPVS: ftp: loaded support on port[0] = 21 [ 51.883534] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.029794] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.036180] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.045864] device bridge_slave_0 entered promiscuous mode [ 52.152439] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.159892] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.188182] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.195383] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.205058] device bridge_slave_1 entered promiscuous mode [ 52.284418] chnl_net:caif_netlink_parms(): no params data found [ 52.349972] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.360160] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 52.370931] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.425025] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 52.606114] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.613142] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.622813] device bridge_slave_0 entered promiscuous mode [ 52.674018] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.681086] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.690763] device bridge_slave_1 entered promiscuous mode [ 52.698018] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 52.826273] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 52.932147] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 52.940671] chnl_net:caif_netlink_parms(): no params data found [ 52.984817] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 52.994115] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.071058] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.132215] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.139684] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.149571] device bridge_slave_0 entered promiscuous mode [ 53.188887] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.196482] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.205730] device bridge_slave_1 entered promiscuous mode [ 53.267624] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.333028] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.375057] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.389902] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 53.451242] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 53.559931] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.621093] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 53.707220] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.713746] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.723350] device bridge_slave_0 entered promiscuous mode [ 53.779607] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.786007] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.795452] device bridge_slave_1 entered promiscuous mode [ 53.875739] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 53.912991] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 53.944970] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 53.954884] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 53.966714] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 53.989536] ------------[ cut here ]------------ [ 53.994305] WARNING: CPU: 1 PID: 5876 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x7b/0xa0 [ 54.002794] sysfs: cannot create duplicate filename '/class/macvtap/tap50' [ 54.010361] Kernel panic - not syncing: panic_on_warn set ... [ 54.010361] [ 54.017708] CPU: 1 PID: 5876 Comm: syz-executor.5 Not tainted 4.6.0-syzkaller #0 [ 54.025581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.034930] 0000000000000000 ffff8800b10eefc8 ffffffff82c65e52 ffffffff85c81040 [ 54.042964] ffff8800b10ef0a0 ffffffff85d2bb80 ffffffff8191bd7b 0000000000000009 [ 54.050963] ffff8800b10ef090 ffffffff8160d884 0000000041b58ab3 ffffffff868f3a9a [ 54.058972] Call Trace: [ 54.061535] [] dump_stack+0x136/0x1d4 [ 54.066959] [] ? sysfs_warn_dup+0x7b/0xa0 [ 54.072747] [] panic+0x1af/0x348 [ 54.077740] [] ? to_vmem_altmap+0x125/0x125 [ 54.083696] [] ? sysfs_warn_dup+0x7b/0xa0 [ 54.090893] [] __warn+0x18d/0x1b0 [ 54.095974] [] warn_slowpath_fmt+0x92/0xb0 [ 54.101858] [] ? __warn+0x1b0/0x1b0 [ 54.107113] [] ? kernfs_path_from_node+0x4a/0x60 [ 54.113507] [] sysfs_warn_dup+0x7b/0xa0 [ 54.119104] [] sysfs_do_create_link_sd.isra.0+0xd1/0xf0 [ 54.126107] [] sysfs_create_link+0x43/0xb0 [ 54.132003] [] device_add+0x677/0x1350 [ 54.137518] [] ? device_private_init+0x180/0x180 [ 54.143919] [] ? kfree_const+0x1d/0x20 [ 54.149448] [] ? kobject_set_name_vargs+0xb4/0x130 [ 54.156003] [] device_create_groups_vargs+0x1c8/0x220 [ 54.162822] [] device_create+0x88/0xa0 [ 54.168339] [] ? device_create_vargs+0x20/0x20 [ 54.174552] [] ? macvlan_set_mac_address+0x150/0x150 [ 54.181292] [] macvtap_device_event+0x1c4/0x2a0 [ 54.187597] [] notifier_call_chain+0x8b/0x170 [ 54.193767] [] raw_notifier_call_chain+0x11/0x20 [ 54.200151] [] call_netdevice_notifiers_info+0x47/0x80 [ 54.207052] [] register_netdevice+0x8e8/0xd00 [ 54.213174] [] ? netdev_change_features+0x80/0x80 [ 54.219639] [] ? dev_get_nest_level+0x10c/0x1a0 [ 54.225960] [] macvlan_common_newlink+0x8b9/0x1090 [ 54.232520] [] macvtap_newlink+0xbf/0x110 [ 54.242052] [] ? __netlink_ns_capable+0xc7/0xf0 [ 54.248356] [] rtnl_newlink+0xd4b/0x1230 [ 54.254047] [] ? rtnl_link_ops_get+0x5d/0x90 [ 54.260092] [] ? rtnl_newlink+0x319/0x1230 [ 54.265961] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 54.272700] [] ? rtnl_setlink+0x2f0/0x2f0 [ 54.278571] [] ? avc_has_perm_noaudit+0x148/0x270 [ 54.285055] [] ? avc_has_perm_noaudit+0x165/0x270 [ 54.291531] [] ? avc_has_perm_noaudit+0x69/0x270 [ 54.297944] [] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 54.304940] [] ? cred_has_capability.isra.35+0xe9/0x1d0 [ 54.311935] [] ? __netlink_ns_capable+0xc7/0xf0 [ 54.318235] [] rtnetlink_rcv_msg+0x222/0x680 [ 54.324282] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 54.331096] [] ? rtnetlink_rcv+0x30/0x30 [ 54.336787] [] ? mutex_lock_nested+0x5fd/0xb30 [ 54.343000] [] ? rtnetlink_rcv+0x16/0x30 [ 54.348684] [] ? netlink_seq_start+0xe0/0xe0 [ 54.354712] [] netlink_rcv_skb+0x242/0x350 [ 54.360579] [] ? rtnetlink_rcv+0x30/0x30 [ 54.366380] [] rtnetlink_rcv+0x25/0x30 [ 54.371898] [] netlink_unicast+0x3da/0x560 [ 54.377758] [] ? netlink_sendskb+0x40/0x40 [ 54.383635] [] netlink_sendmsg+0x9bb/0xb40 [ 54.389491] [] ? nlmsg_notify+0xf0/0xf0 [ 54.395086] [] ? selinux_socket_sendmsg+0x3a/0x50 [ 54.402159] [] ? security_socket_sendmsg+0x6a/0xa0 [ 54.408712] [] ? nlmsg_notify+0xf0/0xf0 [ 54.414320] [] sock_sendmsg+0xb5/0xf0 [ 54.419742] [] SyS_sendto+0x1ca/0x290 [ 54.425162] [] ? SyS_getpeername+0x240/0x240 [ 54.431192] [] ? mntput_no_expire+0xce/0x600 [ 54.437220] [] ? mnt_get_count+0x1c0/0x1c0 [ 54.443074] [] ? mntput+0x52/0x70 [ 54.448154] [] ? task_work_run+0x14a/0x200 [ 54.455095] [] ? trace_hardirqs_on_caller+0x49e/0x5c0 [ 54.461929] [] ? trace_hardirqs_on_thunk+0x1b/0x1d [ 54.468601] [] entry_SYSCALL_64_fastpath+0x23/0xc1 [ 54.476500] Kernel Offset: disabled