[dpdk-dev] [PATCH 1/4] ena_config_host_info: improve safety of string handling
John W. Linville
linville at tuxdriver.com
Wed Sep 28 21:20:01 CEST 2016
Use sizeof dest rather than sizeof src for limiting copy length,
and replace strncpy with snprintf to ensure NULL termination.
Coverity: 127795
Signed-off-by: John W. Linville <linville at tuxdriver.com>
---
drivers/net/ena/ena_ethdev.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index d106f5f39dce..649cb17d4a06 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -342,11 +342,13 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev)
host_info->os_type = ENA_ADMIN_OS_DPDK;
host_info->kernel_ver = RTE_VERSION;
- strncpy((char *)host_info->kernel_ver_str, rte_version(),
- strlen(rte_version()));
+ snprintf((char *)host_info->kernel_ver_str,
+ sizeof(host_info->kernel_ver_str),
+ "%s", rte_version());
host_info->os_dist = RTE_VERSION;
- strncpy((char *)host_info->os_dist_str, rte_version(),
- strlen(rte_version()));
+ snprintf((char *)host_info->os_dist_str,
+ sizeof(host_info->os_dist_str),
+ "%s", rte_version());
host_info->driver_version =
(DRV_MODULE_VER_MAJOR) |
(DRV_MODULE_VER_MINOR << ENA_ADMIN_HOST_INFO_MINOR_SHIFT) |
--
2.7.4
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