From 5520d20f68310fc158dcbbecfd5eac5cdfc5a241 Mon Sep 17 00:00:00 2001
From: Vasiliy Kulikov <segooon@gmail.com>
Date: Sat, 30 Oct 2010 18:26:21 +0400
Subject: [PATCH] Bluetooth: bnep: fix information leak to userland
Structure bnep_conninfo is copied to userland with the field "device"
that has the last elements unitialized. It leads to leaking of
contents of kernel stack memory.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
---
net/bluetooth/bnep/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index f10b41fb05a0..5868597534e5 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -648,6 +648,7 @@ int bnep_del_connection(struct bnep_conndel_req *req)
static void __bnep_copy_ci(struct bnep_conninfo *ci, struct bnep_session *s)
{
+ memset(ci, 0, sizeof(*ci));
memcpy(ci->dst, s->eh.h_source, ETH_ALEN);
strcpy(ci->device, s->dev->name);
ci->flags = s->flags;