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af_packet: Don't send zero-byte data in packet_sendmsg_spkt().
[platform/kernel/linux-rpi.git]
/
net
/
packet
/
af_packet.c
diff --git
a/net/packet/af_packet.c
b/net/packet/af_packet.c
index
6080c0d
..
640d94e
100644
(file)
--- a/
net/packet/af_packet.c
+++ b/
net/packet/af_packet.c
@@
-2033,7
+2033,7
@@
retry:
goto retry;
}
- if (!dev_validate_header(dev, skb->data, len)) {
+ if (!dev_validate_header(dev, skb->data, len)
|| !skb->len
) {
err = -EINVAL;
goto out_unlock;
}