[PATCH 6.1 13/69] scsi: qla2xxx: Fix off by one in qla_edif_app_getstats()

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6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit 4406e4176f47177f5e51b4cc7e6a7a2ff3dbfbbd ]

The app_reply->elem[] array is allocated earlier in this function and it
has app_req.num_ports elements.  Thus this > comparison needs to be >= to
prevent memory corruption.

Fixes: 7878f22a2e03 ("scsi: qla2xxx: edif: Add getfcinfo and statistic bsgs")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Link: https://lore.kernel.org/r/5c125b2f-92dd-412b-9b6f-fc3a3207bd60@moroto.mountain
Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/scsi/qla2xxx/qla_edif.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c
index 7aee4d093969a..969008071decd 100644
--- a/drivers/scsi/qla2xxx/qla_edif.c
+++ b/drivers/scsi/qla2xxx/qla_edif.c
@@ -1058,7 +1058,7 @@ qla_edif_app_getstats(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
 
 		list_for_each_entry_safe(fcport, tf, &vha->vp_fcports, list) {
 			if (fcport->edif.enable) {
-				if (pcnt > app_req.num_ports)
+				if (pcnt >= app_req.num_ports)
 					break;
 
 				app_reply->elem[pcnt].rekey_count =
-- 
2.43.0







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