[dpdk-dev] [PATCH v2] net/i40e: fix out of bounds read issue

Chenxu Di chenxux.di at intel.com
Thu May 7 11:49:41 CEST 2020


This patch fixes (out-of-bounds read) coverity issue.

Coverity issue: 357699
Coverity issue: 357694
Fixes: feaae285b342 ("net/i40e: support hash configuration in RSS flow")

Signed-off-by: Chenxu Di <chenxux.di at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 749d85f54..c2d5c6835 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -13179,6 +13179,9 @@ i40e_rss_config_hash_function(struct i40e_pf *pf,
 				break;
 		}
 
+		if (i == UINT64_BIT)
+			return 0;
+
 		for (j = I40E_FILTER_PCTYPE_INVALID + 1;
 		     j < I40E_FILTER_PCTYPE_MAX; j++) {
 			if (pf->adapter->pctypes_tbl[i] & (1ULL << j))
@@ -13311,6 +13314,9 @@ i40e_rss_clear_hash_function(struct i40e_pf *pf,
 				break;
 		}
 
+		if (i == UINT64_BIT)
+			return 0;
+
 		for (j = I40E_FILTER_PCTYPE_INVALID + 1;
 		     j < I40E_FILTER_PCTYPE_MAX; j++) {
 			if (pf->adapter->pctypes_tbl[i] & (1ULL << j))
-- 
2.17.1



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