From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754696Ab0J3O2D (ORCPT ); Sat, 30 Oct 2010 10:28:03 -0400 Received: from mail-ew0-f46.google.com ([209.85.215.46]:40880 "EHLO mail-ew0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754091Ab0J3O0c (ORCPT ); Sat, 30 Oct 2010 10:26:32 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer; b=UzU4fNOAycC47fYqh5dIcGVqCedxRRcoov162VVES06EpE+6gNHyiQNfyKbJb5hf73 LLHQLQY2w9qQqU2+wsY1adCf/iONG0tTwueFs6y6tzLh5gspyp1O2qVYFHUdkAF+1INf ykKtvspSLhBJZPGfcOHAjjjgbfTQPynjFDhdI= 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> X-Mailer: git-send-email 1.7.0.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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