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path: root/net/phonet/af_phonet.c
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Diffstat (limited to 'net/phonet/af_phonet.c')
-rw-r--r--net/phonet/af_phonet.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index b9d97effebe..7ab30f668b5 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -144,8 +144,8 @@ static int pn_send(struct sk_buff *skb, struct net_device *dev,
struct phonethdr *ph;
int err;
- if (skb->len + 2 > 0xffff) {
- /* Phonet length field would overflow */
+ if (skb->len + 2 > 0xffff /* Phonet length field limit */ ||
+ skb->len + sizeof(struct phonethdr) > dev->mtu) {
err = -EMSGSIZE;
goto drop;
}
@@ -261,6 +261,8 @@ static inline int can_respond(struct sk_buff *skb)
return 0; /* we are not the destination */
if (ph->pn_res == PN_PREFIX && !pskb_may_pull(skb, 5))
return 0;
+ if (ph->pn_res == PN_COMMGR) /* indications */
+ return 0;
ph = pn_hdr(skb); /* re-acquires the pointer */
pm = pn_msg(skb);
@@ -309,7 +311,8 @@ static int send_reset_indications(struct sk_buff *rskb)
return pn_raw_send(data, sizeof(data), rskb->dev,
pn_object(oph->pn_sdev, 0x00),
- pn_object(oph->pn_rdev, oph->pn_robj), 0x10);
+ pn_object(oph->pn_rdev, oph->pn_robj),
+ PN_COMMGR);
}