Warning: Permanently added '10.128.0.93' (ECDSA) to the list of known hosts. 2020/05/26 23:47:53 parsed 1 programs 2020/05/26 23:47:54 executed programs: 0 syzkaller login: [ 32.250243] audit: type=1400 audit(1590536874.175:8): avc: denied { execmem } for pid=6339 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 32.528232] IPVS: ftp: loaded support on port[0] = 21 [ 33.340064] chnl_net:caif_netlink_parms(): no params data found [ 33.412481] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.419280] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.426156] device bridge_slave_0 entered promiscuous mode [ 33.433509] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.440103] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.447081] device bridge_slave_1 entered promiscuous mode [ 33.463321] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 33.471971] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 33.489482] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 33.496855] team0: Port device team_slave_0 added [ 33.502202] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 33.509566] team0: Port device team_slave_1 added [ 33.524623] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 33.530890] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 33.556368] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 33.567885] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 33.574100] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 33.599356] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 33.609948] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 33.617502] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 33.668514] device hsr_slave_0 entered promiscuous mode [ 33.696211] device hsr_slave_1 entered promiscuous mode [ 33.747720] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 33.754666] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 33.816599] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.823018] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.829867] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.836272] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.863261] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 33.869891] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.879547] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 33.888365] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.896736] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.903590] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.913154] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 33.919421] 8021q: adding VLAN 0 to HW filter on device team0 [ 33.928381] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 33.936365] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.942694] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.956527] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 33.964040] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.970413] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.978518] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 33.987058] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 33.995026] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 34.007236] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 34.017157] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 34.028230] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 34.034447] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 34.042380] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 34.050056] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 34.061410] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 34.070098] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 34.077129] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 34.088534] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 34.136759] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 34.146492] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 34.174792] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 34.182282] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 34.189285] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 34.198514] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 34.207039] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 34.213932] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 34.222826] device veth0_vlan entered promiscuous mode [ 34.230971] device veth1_vlan entered promiscuous mode [ 34.237302] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 34.247025] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 34.258075] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 34.267784] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 34.274873] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 34.282514] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 34.292398] device veth0_macvtap entered promiscuous mode [ 34.298765] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 34.306762] device veth1_macvtap entered promiscuous mode [ 34.314853] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 34.324406] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 34.331889] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 34.339457] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 34.348961] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 34.356608] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 34.363235] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 34.371103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 34.381569] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 34.389923] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 34.396880] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 34.404427] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 35.754933] BUG: spinlock recursion on CPU#0, syz-executor.0/6575 [ 35.761192] lock: 0xffff888087004b28, .magic: dead4ead, .owner: syz-executor.0/6575, .owner_cpu: 0 [ 35.770376] CPU: 0 PID: 6575 Comm: syz-executor.0 Not tainted 4.14.181-syzkaller #0 [ 35.778149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.787488] Call Trace: [ 35.790090] dump_stack+0x1b2/0x283 [ 35.793729] do_raw_spin_lock+0x1cd/0x230 [ 35.797852] dev_mc_sync+0x10b/0x1c0 [ 35.801560] ? vlan_dev_set_mac_address+0x5c0/0x5c0 [ 35.806562] vlan_dev_set_rx_mode+0x38/0x80 [ 35.810857] __dev_set_rx_mode+0x191/0x2a0 [ 35.815067] dev_uc_unsync+0x16c/0x1c0 [ 35.818929] bond_hw_addr_flush+0x5c/0xe0 [ 35.823048] ? bond_do_fail_over_mac+0xd00/0xd00 [ 35.827778] bond_enslave+0x2811/0x49b0 [ 35.831727] ? bond_update_slave_arr+0x6c0/0x6c0 [ 35.836462] ? rtmsg_ifinfo_event.part.0+0x9a/0xc0 [ 35.841364] ? rtmsg_ifinfo+0x64/0x80 [ 35.845135] ? __dev_notify_flags+0x110/0x210 [ 35.849601] ? dev_change_name+0x970/0x970 [ 35.853808] ? bond_update_slave_arr+0x6c0/0x6c0 [ 35.858536] do_set_master+0x19e/0x200 [ 35.862395] rtnl_newlink+0x1319/0x1720 [ 35.866362] ? quarantine_put+0xc9/0x190 [ 35.870412] ? rtnl_link_unregister+0x1f0/0x1f0 [ 35.875058] ? avc_has_perm_noaudit+0x157/0x2a0 [ 35.879725] ? lock_acquire+0x170/0x3f0 [ 35.883676] ? lock_acquire+0x170/0x3f0 [ 35.887636] ? lock_acquire+0x170/0x3f0 [ 35.891581] ? lock_downgrade+0x6e0/0x6e0 [ 35.895715] ? rtnl_link_unregister+0x1f0/0x1f0 [ 35.900368] rtnetlink_rcv_msg+0x3be/0xb10 [ 35.904586] ? rtnl_calcit.isra.0+0x3a0/0x3a0 [ 35.909074] ? netdev_pick_tx+0x2e0/0x2e0 [ 35.913207] netlink_rcv_skb+0x127/0x370 [ 35.917248] ? memcpy+0x35/0x50 [ 35.920500] ? rtnl_calcit.isra.0+0x3a0/0x3a0 [ 35.924972] ? netlink_ack+0x970/0x970 [ 35.928834] netlink_unicast+0x437/0x610 [ 35.932868] ? netlink_sendskb+0x50/0x50 [ 35.936919] netlink_sendmsg+0x64a/0xbb0 [ 35.940966] ? nlmsg_notify+0x160/0x160 [ 35.944927] ? move_addr_to_kernel.part.0+0xf0/0xf0 [ 35.949916] ? security_socket_sendmsg+0x83/0xb0 [ 35.954649] ? nlmsg_notify+0x160/0x160 [ 35.958594] sock_sendmsg+0xb5/0x100 [ 35.962282] ___sys_sendmsg+0x70a/0x840 [ 35.966232] ? trace_hardirqs_on+0x10/0x10 [ 35.970443] ? copy_msghdr_from_user+0x380/0x380 [ 35.975171] ? trace_hardirqs_on+0x10/0x10 [ 35.979379] ? trace_hardirqs_on+0x10/0x10 [ 35.983588] ? lock_acquire+0x170/0x3f0 [ 35.987533] ? lock_downgrade+0x6e0/0x6e0 [ 35.991675] ? __fget+0x226/0x360 [ 35.995129] ? __fget_light+0x199/0x1f0 [ 35.999095] ? sockfd_lookup_light+0xb2/0x160 [ 36.003563] __sys_sendmsg+0xa3/0x120 [ 36.007338] ? SyS_shutdown+0x160/0x160 [ 36.011289] ? SyS_clock_gettime+0xf5/0x180 [ 36.015586] ? SyS_clock_settime+0x1a0/0x1a0 [ 36.020013] SyS_sendmsg+0x27/0x40 [ 36.023535] ? __sys_sendmsg+0x120/0x120 [ 36.027570] do_syscall_64+0x1d5/0x640 [ 36.031465] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 36.036628] RIP: 0033:0x45ca29 [ 36.039823] RSP: 002b:00007ff8f610ec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 36.047500] RAX: ffffffffffffffda RBX: 0000000000500f40 RCX: 000000000045ca29 [ 36.054786] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000010 [ 36.062029] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 36.069332] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 36.076594] R13: 0000000000000a04 R14: 00000000004ccdcc R15: 00007ff8f610f6d4