From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Coquelin Subject: Re: [PATCH v2] examples/vhost_scsi: fix buffer not terminated Date: Thu, 12 Oct 2017 13:09:00 +0200 Message-ID: <3e38ad76-40c5-078c-8784-7ea08714c625@redhat.com> References: <20170922130734.7256-1-michalx.k.jastrzebski@intel.com> <1507790695-10449-1-git-send-email-jacekx.piasecki@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: changpeng.liu@intel.com, deepak.k.jain@intel.com, michalx.k.jastrzebski@intel.com, stable@dpdk.org To: Jacek Piasecki , dev@dpdk.org Return-path: In-Reply-To: <1507790695-10449-1-git-send-email-jacekx.piasecki@intel.com> Content-Language: en-US List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 10/12/2017 08:44 AM, Jacek Piasecki wrote: > Use snprintf instead strncpy to get safe null string termination. > There was possible to get not terminated string after strncpy operation. > > Coverity issue: 158631 > Fixes: db75c7af19bb ("examples/vhost_scsi: introduce a new sample app") > Cc: changpeng.liu@intel.com > Cc: stable@dpdk.org > > Signed-off-by: Jacek Piasecki > --- > v2: > * use snprintf instead strncpy > > examples/vhost_scsi/scsi.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/examples/vhost_scsi/scsi.c b/examples/vhost_scsi/scsi.c > index 54d3104..c0f3187 100644 > --- a/examples/vhost_scsi/scsi.c > +++ b/examples/vhost_scsi/scsi.c > @@ -307,7 +307,8 @@ > strncpy((char *)inqdata->t10_vendor_id, "INTEL", 8); > > /* PRODUCT IDENTIFICATION */ > - strncpy((char *)inqdata->product_id, bdev->product_name, 16); > + snprintf((char *)inqdata->product_id, > + ARRAY_SIZE(inqdata->product_id), "%s", bdev->product_name); > > /* PRODUCT REVISION LEVEL */ > strncpy((char *)inqdata->product_rev, "0001", 4); > Acked-by: Maxime Coquelin