From: Eric Dumazet <eric.dumazet@gmail.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: Linux Netdev List <netdev@vger.kernel.org>
Subject: [PATCH] netrom: Fix nr_getname() leak
Date: Thu, 06 Aug 2009 15:31:07 +0200 [thread overview]
Message-ID: <4A7ADB1B.2040401@gmail.com> (raw)
nr_getname() can leak kernel memory to user.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
---
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index ce51ce0..ce1a34b 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -847,6 +847,7 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
sax->fsa_ax25.sax25_family = AF_NETROM;
sax->fsa_ax25.sax25_ndigis = 1;
sax->fsa_ax25.sax25_call = nr->user_addr;
+ memset(sax->fsa_digipeater, 0, sizeof(sax->fsa_digipeater));
sax->fsa_digipeater[0] = nr->dest_addr;
*uaddr_len = sizeof(struct full_sockaddr_ax25);
} else {
next reply other threads:[~2009-08-06 13:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-06 13:31 Eric Dumazet [this message]
2009-08-06 20:09 ` [PATCH] netrom: Fix nr_getname() leak David Miller
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