[238/289] DECnet: dont leak uninitialized stack byte

Greg KH
2010-12-08T01:14:37Z

From: Dan Rosenberg <drosenberg@vsecurity.com>

commit 3c6f27bf33052ea6ba9d82369fb460726fb779c0 upstream.

A single uninitialized padding byte is leaked to userspace.

Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
net/decnet/af_decnet.c | 2 ++
1 file changed, 2 insertions(+)

--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1556,6 +1556,8 @@ static int __dn_getsockopt(struct socket
if (r_len > sizeof(struct linkinfo_dn))
r_len = sizeof(struct linkinfo_dn);

+ memset(&link, 0, sizeof(link));
+
switch(sock->state) {
case SS_CONNECTING:
link.idn_linkstate = LL_CONNECTING;