[dpdk-dev] [PATCH v4] net/i40e: fix out of bounds read issue

[Ye Xiaolong]

Minor nit: 'issue' doesn't need to be mentioned in the commit title, since the
'fix' implies something is broken.

On 05/14, Chenxu Di wrote:
>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>
>---
>v4:
>-Updated the return value.
>---
> 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..91dcd0ebf 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 -EINVAL;
>+
> 		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 -EINVAL;
>+
> 		for (j = I40E_FILTER_PCTYPE_INVALID + 1;
> 		     j < I40E_FILTER_PCTYPE_MAX; j++) {
> 			if (pf->adapter->pctypes_tbl[i] & (1ULL << j))
>-- 
>2.17.1
>

Applied to dpdk-next-net-intel, Thanks.