diff options
| author | Stephen Hemminger <shemminger@osdl.org> | 2006-08-07 16:36:02 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-08-23 14:13:31 -0700 |
| commit | 5a4ceb2adfc3f7d35fa07420582f626c8402e605 (patch) | |
| tree | 05dcd93b5bae0c3b4e711824a98b1335925871a3 /net | |
| parent | a80b26d5597e62094c165c26e77fde4d4ab2e37e (diff) | |
ipx: header length validation needed
This patch will linearize and check there is enough data.
It handles the pprop case as well as avoiding a whole audit of
the routing code.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipx/af_ipx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c index 811d998725b..e6a50e82603 100644 --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1647,7 +1647,8 @@ static int ipx_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_ty ipx_pktsize = ntohs(ipx->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; if (ipx->ipx_checksum != IPX_NO_CHECKSUM && |