--- ip_fragment.c.orig Wed Aug 7 07:00:08 1996 +++ ip_fragment.c Sat Oct 19 20:33:42 1996 @@ -47,6 +47,8 @@ atomic_t ip_frag_mem = 0; /* Memory used for fragments */ +char *in_ntoa(unsigned long in); + /* * Memory Tracking Functions */ @@ -366,7 +368,7 @@ { NETDEBUG(printk("Invalid fragment list: Fragment over size.\n")); ip_free(qp); - frag_kfree_skb(skb,FREE_WRITE); + kfree_skb(skb,FREE_WRITE); ip_statistics.IpReasmFails++; return NULL; } @@ -466,6 +468,19 @@ return NULL; } } + + /* + * Attempt to construct an oversize packet. + */ + + if(ntohs(iph->tot_len)+(int)offset>65535) + { + skb->sk = NULL; + printk("Oversized packet received from %s\n",in_ntoa(qp->iph->saddr)); + frag_kfree_skb(skb, FREE_READ); + ip_statistics.IpReasmFails++; + return NULL; + } /* * Determine the position of this fragment.