netdev - [PATCH net 3/8] i40e: fix idx validation in config queues msg

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Message-ID: <20250919184959.656681-4-anthony.l.nguyen@intel.com>
Date: Fri, 19 Sep 2025 11:49:53 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	andrew+netdev@...n.ch,
	netdev@...r.kernel.org
Cc: Lukasz Czapnik <lukasz.czapnik@...el.com>,
	anthony.l.nguyen@...el.com,
	przemyslaw.kitszel@...el.com,
	leszek.pepiak@...el.com,
	jeremiah.kyle@...el.com,
	gregkh@...uxfoundation.org,
	stable@...r.kernel.org,
	Aleksandr Loktionov <aleksandr.loktionov@...el.com>,
	Simon Horman <horms@...nel.org>,
	Kamakshi Nellore <nellorex.kamakshi@...el.com>
Subject: [PATCH net 3/8] i40e: fix idx validation in config queues msg

From: Lukasz Czapnik <lukasz.czapnik@...el.com>

Ensure idx is within range of active/initialized TCs when iterating over
vf->ch[idx] in i40e_vc_config_queues_msg().

Fixes: c27eac48160d ("i40e: Enable ADq and create queue channel/s on VF")
Cc: stable@...r.kernel.org
Signed-off-by: Lukasz Czapnik <lukasz.czapnik@...el.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Tested-by: Kamakshi Nellore <nellorex.kamakshi@...el.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 1c4f86221255..b6db4d78c02d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -2395,7 +2395,7 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
 		}
 
 		if (vf->adq_enabled) {
-			if (idx >= ARRAY_SIZE(vf->ch)) {
+			if (idx >= vf->num_tc) {
 				aq_ret = -ENODEV;
 				goto error_param;
 			}
@@ -2416,7 +2416,7 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
 		 * to its appropriate VSIs based on TC mapping
 		 */
 		if (vf->adq_enabled) {
-			if (idx >= ARRAY_SIZE(vf->ch)) {
+			if (idx >= vf->num_tc) {
 				aq_ret = -ENODEV;
 				goto error_param;
 			}
-- 
2.47.1