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netrom: fix info leak via msg_name in nr_recvmsg()
[firefly-linux-kernel-4.4.55.git]
/
net
/
netrom
/
af_netrom.c
diff --git
a/net/netrom/af_netrom.c
b/net/netrom/af_netrom.c
index d1fa1d9ffd2e82450d1a6c73fbfb55419cebe0c5..7fcb307dea47516502e74b28c83df403ef5a54e6 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);