diff options
Diffstat (limited to 'accel-pptpd/ppp/lcp_opt_mru.c')
| -rw-r--r-- | accel-pptpd/ppp/lcp_opt_mru.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/accel-pptpd/ppp/lcp_opt_mru.c b/accel-pptpd/ppp/lcp_opt_mru.c index f13b014..096c0d5 100644 --- a/accel-pptpd/ppp/lcp_opt_mru.c +++ b/accel-pptpd/ppp/lcp_opt_mru.c @@ -86,6 +86,9 @@ static int mru_recv_conf_req(struct ppp_lcp_t *lcp, struct lcp_option_t *opt, ui struct mru_option_t *mru_opt = container_of(opt,typeof(*mru_opt),opt); struct lcp_opt16_t *opt16 = (struct lcp_opt16_t*)ptr; + if (!ptr) + return LCP_OPT_NAK; + if (ntohs(opt16->val) < conf_min_mtu || ntohs(opt16->val) > lcp->ppp->ctrl->max_mtu) return LCP_OPT_NAK; |