[NET]: skb_trim audit
I found a few more spots where pskb_trim_rcsum could be used but were not.
This patch changes them to use it.
Also, sk_filter can get paged skb data. Therefore we must use pskb_trim
instead of skb_trim.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sock.h b/include/net/sock.h
index 75b0e97..96565ff 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -873,10 +873,7 @@
if (filter) {
unsigned int pkt_len = sk_run_filter(skb, filter->insns,
filter->len);
- if (!pkt_len)
- err = -EPERM;
- else
- skb_trim(skb, pkt_len);
+ err = pkt_len ? pskb_trim(skb, pkt_len) : -EPERM;
}
if (needlock)