From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Date: Mon, 03 Jun 2013 09:25:16 +0000 Subject: [patch] cpqarray: info leak in ida_locked_ioctl() Message-Id: <20130603092516.GC16171@debian> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Chirag Kantharia Cc: iss_storagedev@hp.com, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org The pciinfo struct has a two byte hole after ->dev_fn so stack information could be leaked to the user. Signed-off-by: Dan Carpenter 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;