------------[ cut here ]------------
WARNING: CPU: 1 PID: 3341 at mm/page_alloc.c:3550 __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3550
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 3341 Comm: syzkaller148824 Not tainted 4.9.75-gb54d99a #8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801c92df118 ffffffff81d93049 ffffffff83a47180 ffff8801c92df1f0
 ffffffff83aa4400 ffffffff81451c26 0000000000000009 ffff8801c92df1e0
 ffffffff8142e281 0000000041b58ab3 ffffffff84189648 ffffffff8142e0c5
Call Trace:
 [<ffffffff81d93049>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d93049>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8142e281>] panic+0x1bc/0x3a8 kernel/panic.c:179
 [<ffffffff81130054>] __warn+0x1c4/0x1e0 kernel/panic.c:542
 [<ffffffff811302bc>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff81451c26>] __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3550
 [<ffffffff81452bbb>] __alloc_pages_nodemask+0x33b/0x6b0 mm/page_alloc.c:3857
 [<ffffffff814a5f8a>] __alloc_pages include/linux/gfp.h:433 [inline]
 [<ffffffff814a5f8a>] __alloc_pages_node include/linux/gfp.h:446 [inline]
 [<ffffffff814a5f8a>] alloc_pages_node include/linux/gfp.h:460 [inline]
 [<ffffffff814a5f8a>] kmalloc_order+0x2a/0x70 mm/slab_common.c:1043
 [<ffffffff814a5fef>] kmalloc_order_trace+0x1f/0x190 mm/slab_common.c:1054
 [<ffffffff8153816d>] kmalloc_large include/linux/slab.h:422 [inline]
 [<ffffffff8153816d>] __kmalloc+0x19d/0x310 mm/slub.c:3730
 [<ffffffff833f811a>] kmalloc include/linux/slab.h:495 [inline]
 [<ffffffff833f811a>] kzalloc include/linux/slab.h:636 [inline]
 [<ffffffff833f811a>] xfrm_alloc_replay_state_esn net/xfrm/xfrm_user.c:442 [inline]
 [<ffffffff833f811a>] xfrm_state_construct net/xfrm/xfrm_user.c:601 [inline]
 [<ffffffff833f811a>] xfrm_add_sa+0x19ea/0x2e40 net/xfrm/xfrm_user.c:639
 [<ffffffff833e8693>] xfrm_user_rcv_msg+0x413/0x6a0 net/xfrm/xfrm_user.c:2525
 [<ffffffff830931de>] netlink_rcv_skb+0x13e/0x370 net/netlink/af_netlink.c:2351
 [<ffffffff833e4b8f>] xfrm_netlink_rcv+0x6f/0x90 net/xfrm/xfrm_user.c:2533
 [<ffffffff83091d61>] netlink_unicast_kernel net/netlink/af_netlink.c:1275 [inline]
 [<ffffffff83091d61>] netlink_unicast+0x511/0x750 net/netlink/af_netlink.c:1301
 [<ffffffff83092888>] netlink_sendmsg+0x8e8/0xc50 net/netlink/af_netlink.c:1847
 [<ffffffff82ed5baa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82ed5baa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82ed77a1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82ed97d6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82ed98bd>] SYSC_sendmsg net/socket.c:2014 [inline]
 [<ffffffff82ed98bd>] SyS_sendmsg+0x2d/0x50 net/socket.c:2010
 [<ffffffff838b0aa8>] entry_SYSCALL_64_fastpath+0x23/0xe2
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..