[dpdk-dev] [PATCH v2] lib/bitratestats: add NULL sanity checks

[Remy Horton]

If rte_stats_bitrate_reg() or rte_stats_bitrate_calc() are
passed NULL as the parameter for the stats structure, the
result is a crash. Fixed by adding a sanity check that makes
sure the passed-in pointer is not NULL.

Fixes: 2ad7ba9a6567 ("bitrate: add bitrate statistics library")

Signed-off-by: Remy Horton <remy.hor...@intel.com>
---
 lib/librte_bitratestats/rte_bitrate.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/librte_bitratestats/rte_bitrate.c 
b/lib/librte_bitratestats/rte_bitrate.c
index 964e3c3..c4b28f6 100644
--- a/lib/librte_bitratestats/rte_bitrate.c
+++ b/lib/librte_bitratestats/rte_bitrate.c
@@ -47,6 +47,9 @@ rte_stats_bitrate_reg(struct rte_stats_bitrates *bitrate_data)
        };
        int return_value;
 
+       if (bitrate_data == NULL)
+               return -EINVAL;
+
        return_value = rte_metrics_reg_names(&names[0], ARRAY_SIZE(names));
        if (return_value >= 0)
                bitrate_data->id_stats_set = return_value;
@@ -65,6 +68,9 @@ rte_stats_bitrate_calc(struct rte_stats_bitrates 
*bitrate_data,
        const int64_t alpha_percent = 20;
        uint64_t values[6];
 
+       if (bitrate_data == NULL)
+               return -EINVAL;
+
        ret_code = rte_eth_stats_get(port_id, &eth_stats);
        if (ret_code != 0)
                return ret_code;
-- 
2.9.5