netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. rcu: INFO: rcu_sched self-detected stall on CPU rcu: 1-....: (104999 ticks this GP) idle=65e/1/0x4000000000000002 softirq=269174/269174 fqs=26229 rcu: (t=105000 jiffies g=543945 q=183) NMI backtrace for cpu 1 CPU: 1 PID: 10701 Comm: syz-executor5 Not tainted 4.18.0-rc8-next-20180806+ #32 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x48/0x88 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:162 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340 print_cpu_stall.cold.78+0x2fb/0x59c kernel/rcu/tree.c:1478 check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3276 [inline] rcu_pending kernel/rcu/tree.c:3319 [inline] rcu_check_callbacks+0xd93/0x1660 kernel/rcu/tree.c:2665 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x3eb/0x10c0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1028 [inline] smp_apic_timer_interrupt+0x165/0x730 arch/x86/kernel/apic/apic.c:1053 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:867 RIP: 0010:__preempt_count_add arch/x86/include/asm/preempt.h:76 [inline] RIP: 0010:kvm_clock_read arch/x86/kernel/kvmclock.c:99 [inline] RIP: 0010:kvm_clock_get_cycles+0x8/0x30 arch/x86/kernel/kvmclock.c:107 Code: 3d a5 9c cc 7e e8 f8 17 00 00 65 ff 0d 21 97 cc 7e 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 55 65 ff 05 08 97 cc 7e <48> 89 e5 65 48 8b 3d 75 9c cc 7e e8 c8 17 00 00 65 ff 0d f1 96 cc RSP: 0018:ffff8801ad9f75c8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: ffffffff813556c0 RBX: dffffc0000000000 RCX: ffffc90004819000 RDX: 0000000000040000 RSI: ffffffff816c1099 RDI: ffffffff87f1ae40 RBP: ffff8801ad9f76e0 R08: ffff88019b982680 R09: 0000000000000001 R10: fffffbfff11a3609 R11: 0000000000000000 R12: 000000000015958a R13: ffff8801ad9f76b8 R14: ffffffff87f1b360 R15: ffffffff87f1ae40 ktime_get_real include/linux/timekeeping.h:79 [inline] ccid3_hc_tx_send_packet+0x68/0x880 net/dccp/ccids/ccid3.c:284 ccid_hc_tx_send_packet net/dccp/ccid.h:170 [inline] dccp_write_xmit+0xb1/0x1f0 net/dccp/output.c:353 dccp_sendmsg+0x8db/0x1030 net/dccp/proto.c:816 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:632 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2115 __sys_sendmsg+0x11d/0x290 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456cb9 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f08303bcc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f08303bd6d4 RCX: 0000000000456cb9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000016 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d3720 R14: 00000000004c843d R15: 0000000000000001 dccp_close: ABORT with 1061 bytes unread 9pnet: p9_fd_create_tcp (10784): problem connecting socket to 127.0.0.1 hfsplus: invalid session number or type of track hfsplus: unable to find HFS+ superblock 9pnet: p9_fd_create_tcp (10791): problem connecting socket to 127.0.0.1 9pnet: p9_fd_create_tcp (10810): problem connecting socket to 127.0.0.1 9pnet: p9_fd_create_tcp (10813): problem connecting socket to 127.0.0.1 hfsplus: invalid session number or type of track hfsplus: unable to find HFS+ superblock device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state IPVS: ftp: loaded support on port[0] = 21 team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves IPVS: ftp: loaded support on port[0] = 21 bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered disabled state device bridge_slave_0 entered promiscuous mode bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered disabled state device bridge_slave_0 entered promiscuous mode bond0: Enslaving bond_slave_0 as an active interface with an up link bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_1 entered promiscuous mode bond0: Enslaving bond_slave_1 as an active interface with an up link IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready bond0: Enslaving bond_slave_0 as an active interface with an up link IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready team0: Port device team_slave_0 added bond0: Enslaving bond_slave_1 as an active interface with an up link IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready team0: Port device team_slave_1 added IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready team0: Port device team_slave_0 added IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready team0: Port device team_slave_1 added IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready