netlink: 3 bytes leftover after parsing attributes in process `syz-executor5'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 22989 Comm: syz-executor1 Not tainted 4.14.0-rc5+ #90
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c0cf2240 task.stack: ffff8801ccb80000
RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline]
RIP: 0010:do_raw_spin_lock+0x23/0x1e0 kernel/locking/spinlock_debug.c:112
RSP: 0018:ffff8801ccb87120 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: 0000000000000018 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 000000000000001c
RBP: ffff8801ccb87140 R08: ffffffff84318073 R09: 0000000000000000
R10: ffff8801ccb87028 R11: 0000000000000030 R12: ffff8801c9df80e0
R13: dffffc0000000000 R14: ffff8801c1d96540 R15: ffff8801c9d82d90
FS:  00007f5a4934c700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020fc7000 CR3: 00000001c48dc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x39/0x40 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:321 [inline]
 rt6_select net/ipv6/route.c:786 [inline]
 ip6_pol_route+0x1be3/0x3ae0 net/ipv6/route.c:1662
 ip6_nh_lookup_table net/ipv6/route.c:2453 [inline]
 ip6_route_info_create+0x1be1/0x24c0 net/ipv6/route.c:2671
 ip6_route_add+0xa2/0x1a0 net/ipv6/route.c:2761
 ipv6_route_ioctl+0x4cf/0x690 net/ipv6/route.c:3281
 inet6_ioctl+0xef/0x1e0 net/ipv6/af_inet6.c:521
 sock_do_ioctl+0x65/0xb0 net/socket.c:961
 sock_ioctl+0x2c2/0x440 net/socket.c:1058
 vfs_ioctl fs/ioctl.c:45 [inline]
 do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:685
 SYSC_ioctl fs/ioctl.c:700 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x452869
RSP: 002b:00007f5a4934bbe8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452869
RDX: 0000000020fc7000 RSI: 000000000000890b RDI: 0000000000000016
RBP: 00000000000003d9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f3cf8
R13: 00000000ffffffff R14: 00007f5a4934c6d4 R15: 0000000000000000
Code: 0f 1f 84 00 00 00 00 00 55 48 b8 00 00 00 00 00 fc ff df 48 89 e5 41 56 41 55 41 54 53 48 89 fb 48 83 c7 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 
RIP: debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline] RSP: ffff8801ccb87120
RIP: do_raw_spin_lock+0x23/0x1e0 kernel/locking/spinlock_debug.c:112 RSP: ffff8801ccb87120
---[ end trace 77081a96b695f610 ]---