netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'.
BUG: unable to handle kernel paging request at 00000000300b7fb1
IP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002
PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 
Oops: 0002 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 8733 Comm: syz-executor5 Not tainted 4.15.0-rc1-next-20171201+ #57
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 00000000c73e680b task.stack: 0000000061f48b2a
RIP: 0010:lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002
RSP: 0018:ffff8801db407a30 EFLAGS: 00010046
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8801c96cc140 RSI: 0000000000000000 RDI: ffff8801c96cc9c4
RBP: ffff8801db407b28 R08: 0000000000000001 R09: 0000000000000000
R10: 1ffff1003b680f4c R11: ffffed0039575f44 R12: 1ffff1003b680f4c
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
FS:  00007effa24ef700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff8 CR3: 00000001d14b4000 CR4: 00000000001426f0
Call Trace:
 <IRQ>
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:159
 __wake_up_common_lock+0x190/0x310 kernel/sched/wait.c:124
 __wake_up+0xe/0x10 kernel/sched/wait.c:149
 wake_up_klogd_work_func+0x4a/0x70 kernel/printk/printk.c:2699
 irq_work_run_list+0x184/0x240 kernel/irq_work.c:155
 irq_work_run+0x31/0x50 kernel/irq_work.c:171
 flush_smp_call_function_queue+0x288/0x570 kernel/smp.c:257
 generic_smp_call_function_single_interrupt+0x13/0x30 kernel/smp.c:192
 smp_call_function_single_interrupt+0x103/0x640 arch/x86/kernel/smp.c:295
 call_function_single_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:929
 </IRQ>
RIP: 0010:ipv6_sock_ac_join+0x137/0x790 net/ipv6/anycast.c:60
RSP: 0018:ffff8801cabaf7a8 EFLAGS: 00010246 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: ffff8801cabafa10 RCX: ffffffff84685ee0
RDX: 1ffff10038a2c921 RSI: ffffc9000386f000 RDI: ffff8801c5164908
RBP: ffff8801cabaf860 R08: bb05000000000000 R09: ffffed0039575f45
R10: 0000000000000003 R11: ffffed0039575f44 R12: ffff8801c151cc40
R13: ffff8801c51640c0 R14: ffff8801cabafa10 R15: 1ffff10039575efa
 do_ipv6_setsockopt.isra.9+0x321f/0x39c0 net/ipv6/ipv6_sockglue.c:662
 ipv6_setsockopt+0xd7/0x150 net/ipv6/ipv6_sockglue.c:921
 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2871
 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2968
 SYSC_setsockopt net/socket.c:1851 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1830
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x4529d9
RSP: 002b:00007effa24eec58 EFLAGS: 00000212 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00000000007580d8 RCX: 00000000004529d9
RDX: 000000000000001b RSI: 0000000000000029 RDI: 0000000000000016
RBP: 0000000000000048 R08: 0000000000000020 R09: 0000000000000000
R10: 000000002026d000 R11: 0000000000000212 R12: 00000000006ed760
R13: 00000000ffffffff R14: 00007effa24ef6d4 R15: 0000000000000008
Code: df 48 89 f9 48 c1 e9 03 0f b6 0c 01 48 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 fe 02 00 00 c7 82 84 08 00 00 01 00 00 00 <cc> 1f 44 00 00 65 8b 05 b1 c9 aa 7e 89 c0 48 0f a3 05 37 5f 08 
RIP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 RSP: ffff8801db407a30
CR2: fffffffffffffff8
---[ end trace 53044d0465e4d29f ]---