[dpdk-dev] [PATCH] net/softnic: fix integer overflow

Jasvinder Singh jasvinder.singh at intel.com
Thu Oct 19 11:39:45 CEST 2017


Fixed integer overflow by casting hard_rate to uint64_t type.

CID 195020 (#1 of 1): Unintentional integer overflow
(OVERFLOW_BEFORE_WIDEN)

Fixes: 8316b9816b79 ("net/softnic: support traffic management")

Signed-off-by: Jasvinder Singh <jasvinder.singh at intel.com>
---
 drivers/net/softnic/rte_eth_softnic_tm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/softnic/rte_eth_softnic_tm.c b/drivers/net/softnic/rte_eth_softnic_tm.c
index 682cc4d..dbb2514 100644
--- a/drivers/net/softnic/rte_eth_softnic_tm.c
+++ b/drivers/net/softnic/rte_eth_softnic_tm.c
@@ -47,7 +47,7 @@
 int
 tm_params_check(struct pmd_params *params, uint32_t hard_rate)
 {
-	uint64_t hard_rate_bytes_per_sec = hard_rate * BYTES_IN_MBPS;
+	uint64_t hard_rate_bytes_per_sec = (uint64_t)hard_rate * BYTES_IN_MBPS;
 	uint32_t i;
 
 	/* rate */
-- 
2.9.3



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