From: Vasiliy Kulikov <segooon@gmail.com>
Date: Sat, 30 Oct 2010 14:26:26 +0000 (+0400)
Subject: Bluetooth: cmtp: fix information leak to userland
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3185fbd9d7bb166992f072440b3329f58bf2c60a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

Bluetooth: cmtp: fix information leak to userland

Structure cmtp_conninfo is copied to userland with some padding fields
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>
---

diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index ec0a1347f933..8e5f292529ac 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -78,6 +78,7 @@ static void __cmtp_unlink_session(struct cmtp_session *session)
 
 static void __cmtp_copy_session(struct cmtp_session *session, struct cmtp_conninfo *ci)
 {
+	memset(ci, 0, sizeof(*ci));
 	bacpy(&ci->bdaddr, &session->bdaddr);
 
 	ci->flags = session->flags;