netrom: fix info leak via msg_name in nr_recvmsg()

[cascardo/linux.git] / net / netrom / af_netrom.c

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index d1fa1d9..7fcb307 100644 (file)
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1173,6 +1173,7 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
        }
 
        if (sax != NULL) {
+               memset(sax, 0, sizeof(sax));
                sax->sax25_family = AF_NETROM;
                skb_copy_from_linear_data_offset(skb, 7, sax->sax25_call.ax25_call,
                              AX25_ADDR_LEN);