diff options
| author | Paul Mackerras <paulus@samba.org> | 2006-08-31 15:45:48 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-08-31 15:45:48 +1000 |
| commit | aa43f77939c97bf9d3580c6a5e71a5a40290e451 (patch) | |
| tree | 095c0b8b3da4b6554a3f8ef4b39240a5d9216d4d /net/ipx | |
| parent | 2818c5dec5e28d65d52afbb7695bbbafe6377ee5 (diff) | |
| parent | 4c15343167b5febe7bb0ba96aad5bef42ae94d3b (diff) | |
Merge branch 'merge'
Diffstat (limited to 'net/ipx')
| -rw-r--r-- | net/ipx/af_ipx.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c index aa34ff4b707..bef3f61569f 100644 --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1642,13 +1642,17 @@ static int ipx_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_ty if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) goto out; - ipx = ipx_hdr(skb); - ipx_pktsize = ntohs(ipx->ipx_pktsize); + if (!pskb_may_pull(skb, sizeof(struct ipxhdr))) + goto drop; + + ipx_pktsize = ntohs(ipx_hdr(skb)->ipx_pktsize); /* Too small or invalid header? */ - if (ipx_pktsize < sizeof(struct ipxhdr) || ipx_pktsize > skb->len) + if (ipx_pktsize < sizeof(struct ipxhdr) || + !pskb_may_pull(skb, ipx_pktsize)) goto drop; + ipx = ipx_hdr(skb); if (ipx->ipx_checksum != IPX_NO_CHECKSUM && ipx->ipx_checksum != ipx_cksum(ipx, ipx_pktsize)) goto drop; |