diff options
Diffstat (limited to 'net/xfrm/xfrm_policy.c')
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 6affe5cd85d8..66e07de2de35 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2489,6 +2489,12 @@ xfrm_tmpl_resolve_one(struct xfrm_policy *policy, const struct flowi *fl, x = xfrm_state_find(remote, local, fl, tmpl, policy, &error, family, policy->if_id); + if (x && x->dir && x->dir != XFRM_SA_DIR_OUT) { + XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEDIRERROR); + xfrm_state_put(x); + error = -EINVAL; + goto fail; + } if (x && x->km.state == XFRM_STATE_VALID) { xfrm[nx++] = x; @@ -2598,8 +2604,7 @@ static void xfrm_init_path(struct xfrm_dst *path, struct dst_entry *dst, int nfheader_len) { if (dst->ops->family == AF_INET6) { - struct rt6_info *rt = (struct rt6_info *)dst; - path->path_cookie = rt6_get_cookie(rt); + path->path_cookie = rt6_get_cookie(dst_rt6_info(dst)); path->u.rt6.rt6i_nfheader_len = nfheader_len; } } @@ -3593,6 +3598,8 @@ xfrm_policy *xfrm_in_fwd_icmp(struct sk_buff *skb, return pol; pol = xfrm_policy_lookup(net, &fl1, family, XFRM_POLICY_FWD, if_id); + if (IS_ERR(pol)) + pol = NULL; } return pol; @@ -3903,15 +3910,10 @@ static void xfrm_link_failure(struct sk_buff *skb) /* Impossible. Such dst must be popped before reaches point of failure. */ } -static struct dst_entry *xfrm_negative_advice(struct dst_entry *dst) +static void xfrm_negative_advice(struct sock *sk, struct dst_entry *dst) { - if (dst) { - if (dst->obsolete) { - dst_release(dst); - dst = NULL; - } - } - return dst; + if (dst->obsolete) + sk_dst_reset(sk); } static void xfrm_init_pmtu(struct xfrm_dst **bundle, int nr) |