Return-Path: From: Vasiliy Kulikov To: kernel-janitors@vger.kernel.org Cc: Marcel Holtmann , "Gustavo F. Padovan" , "David S. Miller" , Eric Dumazet , linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] bluetooth: cmtp: fix information leak to userland Date: Sat, 30 Oct 2010 18:26:26 +0400 Message-Id: <1288448787-5848-1-git-send-email-segooon@gmail.com> List-ID: 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 --- Compile tested. net/bluetooth/cmtp/core.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c index ec0a134..8e5f292 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; -- 1.7.0.4