From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 19 Sep 2018 13:35:29 +0300
Subject: ixgbevf: off by one in ixgbevf_ipsec_tx()
Patch-mainline: v4.20-rc1
Git-commit: 617cc646a7a09c7abf507981a81f441fc79b0511
References: bsc#1113994 FATE#326315 FATE#326317

The ipsec->tx_tbl[] array has IXGBE_IPSEC_MAX_SA_COUNT elements so the >
should be a >=.

Fixes: 0062e7cc955e ("ixgbevf: add VF IPsec offload code")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ixgbevf/ipsec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/intel/ixgbevf/ipsec.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ipsec.c
@@ -467,7 +467,7 @@ int ixgbevf_ipsec_tx(struct ixgbevf_ring
 	}
 
 	sa_idx = xs->xso.offload_handle - IXGBE_IPSEC_BASE_TX_INDEX;
-	if (unlikely(sa_idx > IXGBE_IPSEC_MAX_SA_COUNT)) {
+	if (unlikely(sa_idx >= IXGBE_IPSEC_MAX_SA_COUNT)) {
 		netdev_err(tx_ring->netdev, "%s: bad sa_idx=%d handle=%lu\n",
 			   __func__, sa_idx, xs->xso.offload_handle);
 		return 0;