zero addr before calling copy_to_user()
Signed-off-by: Loganaden Velvindron <[email protected]>
---
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
--
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