提交 ebfe92ca 编写于 作者: R Rémi Denis-Courmont 提交者: David S. Miller

Phonet: refuse to send bigger than MTU packets

Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 eb7c3adb
...@@ -144,8 +144,8 @@ static int pn_send(struct sk_buff *skb, struct net_device *dev, ...@@ -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;
} }
......
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