diff options
| author | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-08-27 21:59:59 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-08-27 21:59:59 -0500 |
| commit | 8ce7a9c159c8c4eb480f0a65c6af753dbf9a1a70 (patch) | |
| tree | be59573c0af3617d0cd8a7d61f0ed119e58b1156 /net/ipx/af_ipx.c | |
| parent | d2afb3ae04e36dbc6e9eb2d8bd54406ff7b6b3bd (diff) | |
| parent | 01da5fd83d6b2c5e36b77539f6cbdd8f49849225 (diff) | |
Merge ../linux-2.6
Diffstat (limited to 'net/ipx/af_ipx.c')
| -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; |