------------[ cut here ]------------
WARNING: CPU: 0 PID: 3795 at mm/page_alloc.c:3544 __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3544
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 3795 Comm: syzkaller914711 Not tainted 4.9.80-g20c8a00 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d7937118 ffffffff81d94b69 ffffffff83a47c40 ffff8801d79371f0
 ffffffff83aa4e00 ffffffff81452f16 0000000000000009 ffff8801d79371e0
 ffffffff8142f541 0000000041b58ab3 ffffffff8418ab20 ffffffff8142f385
Call Trace:
 [<ffffffff81d94b69>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d94b69>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8142f541>] panic+0x1bc/0x3a8 kernel/panic.c:179
 [<ffffffff81131174>] __warn+0x1c4/0x1e0 kernel/panic.c:542
 [<ffffffff811313dc>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff81452f16>] __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3544
 [<ffffffff81453eab>] __alloc_pages_nodemask+0x33b/0x6b0 mm/page_alloc.c:3851
 [<ffffffff814a75aa>] __alloc_pages include/linux/gfp.h:433 [inline]
 [<ffffffff814a75aa>] __alloc_pages_node include/linux/gfp.h:446 [inline]
 [<ffffffff814a75aa>] alloc_pages_node include/linux/gfp.h:460 [inline]
 [<ffffffff814a75aa>] kmalloc_order+0x2a/0x70 mm/slab_common.c:1043
 [<ffffffff814a760f>] kmalloc_order_trace+0x1f/0x190 mm/slab_common.c:1054
 [<ffffffff815397ad>] kmalloc_large include/linux/slab.h:422 [inline]
 [<ffffffff815397ad>] __kmalloc+0x19d/0x310 mm/slub.c:3730
 [<ffffffff833fa75a>] kmalloc include/linux/slab.h:495 [inline]
 [<ffffffff833fa75a>] kzalloc include/linux/slab.h:636 [inline]
 [<ffffffff833fa75a>] xfrm_alloc_replay_state_esn net/xfrm/xfrm_user.c:442 [inline]
 [<ffffffff833fa75a>] xfrm_state_construct net/xfrm/xfrm_user.c:601 [inline]
 [<ffffffff833fa75a>] xfrm_add_sa+0x19ea/0x2e40 net/xfrm/xfrm_user.c:639
 [<ffffffff833eacd3>] xfrm_user_rcv_msg+0x413/0x6a0 net/xfrm/xfrm_user.c:2525
 [<ffffffff8309537e>] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2351
 [<ffffffff833e71cf>] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533
 [<ffffffff83093f01>] netlink_unicast_kernel net/netlink/af_netlink.c:1275 [inline]
 [<ffffffff83093f01>] netlink_unicast+0x511/0x750 net/netlink/af_netlink.c:1301
 [<ffffffff83094a28>] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847
 [<ffffffff82ed7baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82edb8bd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff838b34ee>] entry_SYSCALL_64_fastpath+0x29/0xe8
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..