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From: Aaron Conole <aconole@redhat.com>
To: Pallantla Poornima <pallantlax.poornima@intel.com>
Cc: dev@dpdk.org, reshma.pattan@intel.com, nikhil.rao@intel.com,
	stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] test/eventdev: fix sprintf with snprintf
Date: Fri, 08 Feb 2019 16:19:42 -0500	[thread overview]
Message-ID: <f7to97mdlld.fsf@dhcp-25.97.bos.redhat.com> (raw)
In-Reply-To: <1549449822-412-1-git-send-email-pallantlax.poornima@intel.com> (Pallantla Poornima's message of "Wed, 6 Feb 2019 10:43:42 +0000")

Pallantla Poornima <pallantlax.poornima@intel.com> writes:

> sprintf function is not secure as it doesn't check the length of string.
> More secure function snprintf is used.
>
> Fixes: 2a9c83ae3b ("test/eventdev: add multi-ports test")
> Cc: stable@dpdk.org
>
> Signed-off-by: Pallantla Poornima <pallantlax.poornima@intel.com>
> ---
>  test/test/test_event_eth_rx_adapter.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/test/test/test_event_eth_rx_adapter.c b/test/test/test_event_eth_rx_adapter.c
> index 1d3be82b5..38f5c039f 100644
> --- a/test/test/test_event_eth_rx_adapter.c
> +++ b/test/test/test_event_eth_rx_adapter.c
> @@ -479,7 +479,8 @@ adapter_multi_eth_add_del(void)
>  	/* add the max port for rx_adapter */
>  	port_index = rte_eth_dev_count_total();
>  	for (; port_index < RTE_MAX_ETHPORTS; port_index += 1) {
> -		sprintf(driver_name, "%s%u", "net_null", drv_id);
> +		snprintf(driver_name, sizeof(driver_name), "%s%u", "net_null",
> +				drv_id);
>  		err = rte_vdev_init(driver_name, NULL);
>  		TEST_ASSERT(err == 0, "Failed driver %s got %d",
>  		driver_name, err);

You call this a fix, but it's not possible for the value of drv_id to
exceed '32' and the buffer size is plenty accommodating for that.  Did I
miss something?  What is this fixing?

  reply	other threads:[~2019-02-08 21:19 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-06 10:43 Pallantla Poornima
2019-02-08 21:19 ` Aaron Conole [this message]
     [not found]   ` <7AE31235A30B41498D1C31348DC858BD5B534A73@IRSMSX103.ger.corp.intel.com>
2019-03-12  7:41     ` Parthasarathy, JananeeX M
2019-03-12 14:44       ` Aaron Conole
2019-03-13 11:04         ` [dpdk-dev] [dpdk-stable] " Ferruh Yigit
2019-03-13 13:43           ` Aaron Conole
2019-03-13 14:07             ` Ferruh Yigit
2019-03-13 14:35               ` Aaron Conole
2019-03-30 14:15                 ` Jerin Jacob Kollanukkaran
2019-03-30 14:15                   ` Jerin Jacob Kollanukkaran
2019-04-01 20:37                   ` Aaron Conole
2019-04-01 20:37                     ` Aaron Conole
2019-04-02  1:35                     ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-04-02  1:35                       ` Jerin Jacob Kollanukkaran

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