cifs: Fix smbencrypt() to stop pointing a scatterlist at the stack

smbencrypt() points a scatterlist to the stack, which is breaks if
CONFIG_VMAP_STACK=y.

Fix it by switching to crypto_cipher_encrypt_one().  The new code
should be considerably faster as an added benefit.

This code is nearly identical to some code that Eric Biggers
suggested.

Cc: stable@vger.kernel.org # 4.9 only
Reported-by: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

path: root/proto_ipv6_in_ipv4.c

/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2012 Markus Amend <markus@netsniff-ng.org>, Deutsche Flugsicherung GmbH
 * Subject to the GPL, version 2.
 *
 * IPv6 in IPv4 encapsulation described in RFC3056
 */

#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h>    /* for ntohs() */

#include "proto.h"
#include "protos.h"
#include "dissector_eth.h"
#include "built_in.h"

extern void ipv6(struct pkt_buff *pkt);
extern void ipv6_less(struct pkt_buff *pkt);

struct protocol ipv6_in_ipv4_ops = {
	.key = 0x29,
	.print_full = ipv6,
	.print_less = ipv6_less,
};