From: "Richardson, Bruce" <bruce.richardson@intel.com>
To: "Mcnamara, John" <john.mcnamara@intel.com>,
"Zhang, Roy Fan" <roy.fan.zhang@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] example/ip_pipeline: fix copy into fixed size buffer defect
Date: Fri, 11 Dec 2015 16:16:45 +0000 [thread overview]
Message-ID: <59AF69C657FD0841A61C55336867B5B035991156@IRSMSX103.ger.corp.intel.com> (raw)
In-Reply-To: <B27915DBBA3421428155699D51E4CFE2024035FD@IRSMSX103.ger.corp.intel.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Mcnamara, John
> Sent: Friday, December 11, 2015 3:37 PM
> To: Zhang, Roy Fan <roy.fan.zhang@intel.com>; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] example/ip_pipeline: fix copy into fixed
> size buffer defect
>
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Fan Zhang
> > Sent: Friday, December 11, 2015 11:29 AM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] [PATCH] example/ip_pipeline: fix copy into fixed
> > size buffer defect
> >
> > Coverity issue: 107133
> > Fixes: eb32fe7c5574 ("examples/ip_pipeline: rework initialization
> > parameters")
> >
> > Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
> > Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
> > ---
> > examples/ip_pipeline/init.c | 5 ++++-
> > 1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/examples/ip_pipeline/init.c b/examples/ip_pipeline/init.c
> > index bc6d6d9..5bcb420 100644
> > --- a/examples/ip_pipeline/init.c
> > +++ b/examples/ip_pipeline/init.c
> > @@ -1068,7 +1068,10 @@ static void app_pipeline_params_get(struct
> > app_params *app,
> > uint32_t i;
> > uint32_t mempool_id;
> >
> > - strcpy(p_out->name, p_in->name);
> > + if (sizeof(p_in->name) > PIPELINE_NAME_SIZE)
> > + strncpy(p_out->name, p_in->name, PIPELINE_NAME_SIZE);
> > + else
> > + strcpy(p_out->name, p_in->name);
> >
> > p_out->socket_id = (int) p_in->socket_id;
> >
>
> Hi Fan,
>
> I think there could still be issues here (depending of the size/types of
> p_out->name and p_in->name). Probably better as something like:
>
> strncpy(p_out->name, p_in->name, PIPELINE_NAME_SIZE);
> p_out->name[PIPELINE_NAME_SIZE -1] = '\0';
>
> John.
> --
Use snprintf to avoid having to explicitly null terminate, perhaps?
/Bruce
next prev parent reply other threads:[~2015-12-11 16:16 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-11 11:29 [dpdk-dev] [PATCH] example/ip_pipeline: fix buffer size warning Fan Zhang
2015-12-11 11:29 ` [dpdk-dev] [PATCH] example/ip_pipeline: fix copy into fixed size buffer defect Fan Zhang
2015-12-11 15:37 ` Mcnamara, John
2015-12-11 16:16 ` Richardson, Bruce [this message]
2015-12-11 11:29 ` [dpdk-dev] [PATCH] example/ip_pipeline: fix copy-paste error Fan Zhang
2015-12-11 15:20 ` Mcnamara, John
2015-12-11 11:29 ` [dpdk-dev] [PATCH] example/ip_pipeline: fix logically deadnode defect Fan Zhang
2015-12-11 15:22 ` Mcnamara, John
2015-12-11 11:29 ` [dpdk-dev] [PATCH] example/ip_pipeline: fix overrunning byffer defect Fan Zhang
2015-12-11 15:25 ` Mcnamara, John
2015-12-11 11:29 ` [dpdk-dev] [PATCH] example/ip_pipeline: fix value overwrite Fan Zhang
2015-12-11 15:44 ` Mcnamara, John
2015-12-11 14:59 ` [dpdk-dev] [PATCH] example/ip_pipeline: fix buffer size warning Mcnamara, John
2015-12-13 1:34 ` Thomas Monjalon
2015-12-11 16:01 [dpdk-dev] [PATCH] example/ip_pipeline: fix copy into fixed size buffer defect Fan Zhang
2015-12-11 16:27 ` Mcnamara, John
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