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Phonet: refuse to send bigger than MTU packets

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Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rémi Denis-Courmont
2008-11-16 19:48:49 -08:00
committed by David S. Miller
parent eb7c3adb1c
commit ebfe92ca65
1 changed files with 2 additions and 2 deletions
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4
net/phonet/af_phonet.c
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@@ -144,8 +144,8 @@ static int pn_send(struct sk_buff *skb, struct net_device *dev,
struct phonethdr *ph; struct phonethdr *ph;
int err; int err;
if (skb->len + 2 > 0xffff) { if (skb->len + 2 > 0xffff /* Phonet length field limit */ ||
/* Phonet length field would overflow */ skb->len + sizeof(struct phonethdr) > dev->mtu) {
err = -EMSGSIZE; err = -EMSGSIZE;
goto drop; goto drop;
} }