From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Andy Green <andy@warmcat.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v6 10/16] net/qede: solve broken strncpy
Date: Mon, 14 May 2018 21:20:42 +0100 [thread overview]
Message-ID: <e4d6e9b6-005e-8181-e98d-72241e2fe4b6@intel.com> (raw)
In-Reply-To: <152627404220.52758.3218252976578778714.stgit@localhost.localdomain>
On 5/14/2018 6:00 AM, Andy Green wrote:
> /home/agreen/projects/dpdk/drivers/net/qede/qede_main.c: In function
> ‘qed_slowpath_start’:
> /home/agreen/projects/dpdk/drivers/net/qede/qede_main.c:307:3:
> error: ‘strncpy’ output may be truncated copying 12 bytes from a
> string of length 127 [-Werror=stringop-truncation]
> strncpy((char *)drv_version.name, (const char *)params->name,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> MCP_DRV_VER_STR_SIZE - 4);
> ~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Signed-off-by: Andy Green <andy@warmcat.com>
> Fixes: 86a2265e59d7 ("qede: add SRIOV support")
> Cc: stable@dpdk.org
> ---
> drivers/net/qede/qede_main.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/qede/qede_main.c b/drivers/net/qede/qede_main.c
> index 2333ca073..fcfc32d0d 100644
> --- a/drivers/net/qede/qede_main.c
> +++ b/drivers/net/qede/qede_main.c
> @@ -9,6 +9,7 @@
> #include <limits.h>
> #include <time.h>
> #include <rte_alarm.h>
> +#include <rte_string_fns.h>
>
> #include "qede_ethdev.h"
>
> @@ -303,9 +304,9 @@ static int qed_slowpath_start(struct ecore_dev *edev,
> drv_version.version = (params->drv_major << 24) |
> (params->drv_minor << 16) |
> (params->drv_rev << 8) | (params->drv_eng);
> - /* TBD: strlcpy() */
> - strncpy((char *)drv_version.name, (const char *)params->name,
> - MCP_DRV_VER_STR_SIZE - 4);
> + strlcpy((char *)drv_version.name, (const char *)params->name,
> + sizeof(drv_version.name));
> + drv_version.name[sizeof(drv_version.name) - 1] = '\0';
Why set '\0'? doesn't strlcpy assures it?
> rc = ecore_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
> &drv_version);
> if (rc) {
>
next prev parent reply other threads:[~2018-05-14 20:20 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-12 1:47 [dpdk-dev] [PATCH v5 00/16] Fix default build on gcc8.0.1 Andy Green
2018-05-12 1:47 ` [dpdk-dev] [PATCH v5 01/16] devtools/check-git: provide more generic grep pattern Andy Green
2018-05-12 1:47 ` [dpdk-dev] [PATCH v5 02/16] net/nfp: solve buffer overflow Andy Green
2018-05-12 1:47 ` [dpdk-dev] [PATCH v5 03/16] bus/pci: replace strncpy dangerous code Andy Green
2018-05-15 6:12 ` Yao, Lei A
2018-05-15 7:31 ` [dpdk-dev] [PATCH] bus/pci: correct the earlier strlcpy conversion Andy Green
2018-05-15 10:51 ` Andrew Rybchenko
2018-05-15 13:19 ` Thomas Monjalon
2018-05-15 7:32 ` [dpdk-dev] [PATCH v5 03/16] bus/pci: replace strncpy dangerous code Andy Green
2018-05-15 8:18 ` Yao, Lei A
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 04/16] bus/dpaa: solve inconsistent struct alignment Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 05/16] net/axgbe: solve broken eeprom string comp Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 06/16] net/nfp/nfpcore: solve strncpy misuse Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 07/16] net/nfp/nfpcore: off-by-one and no NUL on strncpy use Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 08/16] net/nfp: don't memcpy out of source range Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 09/16] net/qede: strncpy length constant and NUL Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 10/16] net/qede: solve broken strncpy Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 11/16] net/sfc: make sure that copied stats name is NUL-terminated Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 12/16] net/vdev_netvsc: readlink inputs cannot be aliased Andy Green
2018-05-13 7:20 ` Matan Azrad
2018-05-14 4:54 ` Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 13/16] net/vdev_netvsc: 3 x strncpy misuse Andy Green
2018-05-13 7:47 ` Matan Azrad
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 14/16] app/proc-info: sprintf overrun bug Andy Green
2018-05-12 1:48 ` [dpdk-dev] [PATCH v5 15/16] app/test-bbdev: strcpy ok for allocated string Andy Green
2018-05-12 1:49 ` [dpdk-dev] [PATCH v5 16/16] " Andy Green
2018-05-14 4:59 ` [dpdk-dev] [PATCH v6 00/16] Fix default build on gcc8.0.1 Andy Green
2018-05-14 4:59 ` [dpdk-dev] [PATCH v6 01/16] devtools/check-git: provide more generic grep pattern Andy Green
2018-05-14 16:28 ` Ferruh Yigit
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 02/16] net/nfp: solve buffer overflow Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 03/16] bus/pci: replace strncpy dangerous code Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 04/16] bus/dpaa: solve inconsistent struct alignment Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 05/16] net/axgbe: solve broken eeprom string comp Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 06/16] net/nfp/nfpcore: solve strncpy misuse Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 07/16] net/nfp/nfpcore: off-by-one and no NUL on strncpy use Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 08/16] net/nfp: don't memcpy out of source range Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 09/16] net/qede: strncpy length constant and NUL Andy Green
2018-05-14 20:16 ` Ferruh Yigit
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 10/16] net/qede: solve broken strncpy Andy Green
2018-05-14 20:20 ` Ferruh Yigit [this message]
2018-05-14 21:14 ` Ferruh Yigit
2018-05-14 23:04 ` Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 11/16] net/sfc: make sure that copied stats name is NUL-terminated Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 12/16] net/vdev_netvsc: readlink inputs cannot be aliased Andy Green
2018-05-14 5:00 ` [dpdk-dev] [PATCH v6 13/16] net/vdev_netvsc: convert snprintf to strlcpy Andy Green
2018-05-14 5:01 ` [dpdk-dev] [PATCH v6 14/16] app/proc-info: sprintf overrun bug Andy Green
2018-05-14 20:31 ` Ferruh Yigit
2018-05-14 5:01 ` [dpdk-dev] [PATCH v6 15/16] app/test-bbdev: strcpy ok for allocated string Andy Green
2018-05-14 20:42 ` Ferruh Yigit
2018-05-14 20:56 ` Ferruh Yigit
2018-05-14 21:01 ` Ferruh Yigit
2018-05-14 5:01 ` [dpdk-dev] [PATCH v6 16/16] " Andy Green
2018-05-14 21:03 ` Ferruh Yigit
2018-05-14 21:29 ` [dpdk-dev] [PATCH v6 00/16] Fix default build on gcc8.0.1 Ferruh Yigit
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