From: Loganaden Velvindron <logan@elandsys.com>
To: netdev@vger.kernel.org
Subject: [PATCH net-next ] net: ipv4: memset addr before calling copy_to_user()
Date: Sun, 8 Nov 2015 22:52:36 -0800 [thread overview]
Message-ID: <20151109065236.GA2271@mx.elandsys.com> (raw)
zero addr before calling copy_to_user()
Signed-off-by: Loganaden Velvindron <logan@elandsys.com>
---
net/ipv4/ip_sockglue.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index c3c359a..d7a5a8b 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1373,6 +1373,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
case IP_MULTICAST_IF:
{
struct in_addr addr;
+ memset(&addr, 0, sizeof(addr));
len = min_t(unsigned int, len, sizeof(struct in_addr));
addr.s_addr = inet->mc_addr;
release_sock(sk);
--
2.6.2
next reply other threads:[~2015-11-09 6:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-09 6:52 Loganaden Velvindron [this message]
2015-11-09 10:09 ` [PATCH net-next ] net: ipv4: memset addr before calling copy_to_user() Hannes Frederic Sowa
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