From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 11 Sep 2013 07:38:00 +0000
Subject: [patch -resend] cpqarray: info leak in ida_locked_ioctl()
Message-Id: <20130911073800.GA25349@mwanda>
List-Id: <kernel-janitors.vger.kernel.org>
In-Reply-To: <20130603092516.GC16171@debian>
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To: Chirag Kantharia <chirag.kantharia@hp.com>, Andrew Morton <akpm@linux-foundation.org>
Cc: iss_storagedev@hp.com, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Moritz Muehlenhoff <jmm@debian.org>

The pciinfo struct has a two byte hole after ->dev_fn so stack
information could be leaked to the user.

This was assigned CVE-2013-2147.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 639d26b..2b94403 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -1193,6 +1193,7 @@ out_passthru:
 		ida_pci_info_struct pciinfo;
 
 		if (!arg) return -EINVAL;
+		memset(&pciinfo, 0, sizeof(pciinfo));
 		pciinfo.bus = host->pci_dev->bus->number;
 		pciinfo.dev_fn = host->pci_dev->devfn;
 		pciinfo.board_id = host->board_id;