------------[ cut here ]------------
WARNING: CPU: 0 PID: 18516 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3548
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 18516 Comm: syz-executor2 Not tainted 4.9.59-g1f46cae #78
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801a76371f0 ffffffff81d911c9 ffffffff83a46ba0 ffff8801a76372c8
 ffffffff83aa3c00 ffffffff81451a56 0000000000000009 ffff8801a76372b8
 ffffffff8142e1f1 0000000041b58ab3 ffffffff84185ad0 ffffffff8142e035
Call Trace:
 [<ffffffff81d911c9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d911c9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8142e1f1>] panic+0x1bc/0x3a8 kernel/panic.c:179
 [<ffffffff811321e4>] __warn+0x1c4/0x1e0 kernel/panic.c:542
 [<ffffffff8113244c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff81451a56>] __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3548
 [<ffffffff814529eb>] __alloc_pages_nodemask+0x33b/0x6b0 mm/page_alloc.c:3855
 [<ffffffff814a5d9a>] __alloc_pages include/linux/gfp.h:433 [inline]
 [<ffffffff814a5d9a>] __alloc_pages_node include/linux/gfp.h:446 [inline]
 [<ffffffff814a5d9a>] alloc_pages_node include/linux/gfp.h:460 [inline]
 [<ffffffff814a5d9a>] kmalloc_order+0x2a/0x70 mm/slab_common.c:1041
 [<ffffffff814a5dff>] kmalloc_order_trace+0x1f/0x190 mm/slab_common.c:1052
 [<ffffffff81537a1d>] kmalloc_large include/linux/slab.h:422 [inline]
 [<ffffffff81537a1d>] __kmalloc+0x19d/0x310 mm/slub.c:3730
 [<ffffffff8340d444>] kmalloc include/linux/slab.h:495 [inline]
 [<ffffffff8340d444>] kzalloc include/linux/slab.h:636 [inline]
 [<ffffffff8340d444>] ip6_setup_cork+0x194/0x1200 net/ipv6/ip6_output.c:1226
 [<ffffffff83421238>] ip6_make_skb+0x1b8/0x440 net/ipv6/ip6_output.c:1802
 [<ffffffff8348718d>] udpv6_sendmsg+0x1b1d/0x2540 net/ipv6/udp.c:1240
 [<ffffffff832e8c6c>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:753
 [<ffffffff82eceb9a>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82eceb9a>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ecfaf8>] SYSC_sendto+0x2c8/0x340 net/socket.c:1670
 [<ffffffff82ed1fa0>] SyS_sendto+0x40/0x50 net/socket.c:1638
 [<ffffffff838aa0c5>] entry_SYSCALL_64_fastpath+0x23/0xc6
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..