[PATCH 1/4] ax25 check error on memcpy_fromiovec (resend)

[Chris Wright <chrisw@xxxxxxxx>]

Check the return value on memcpy_fromiovec().

 net/ax25/af_ax25.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletion(-)

===== net/ax25/af_ax25.c 1.36 vs edited =====
--- 1.36/net/ax25/af_ax25.c     Fri Jan  9 01:53:04 2004
+++ edited/net/ax25/af_ax25.c   Fri Jan 16 14:13:54 2004
@@ -1526,7 +1526,12 @@
        SOCK_DEBUG(sk, "AX.25: Appending user data\n");
 
        /* User data follows immediately after the AX.25 data */
-       memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
+       if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
+               err = -EFAULT;
+               kfree_skb(skb);
+               goto out;
+       }
+
        skb->nh.raw = skb->data;
 
        /* Add the PID if one is not supplied by the user in the skb */