patch 'net/bnxt: fix crash by validating pointer' has been queued to stable release 21.11.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/26/22. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/b74a60df81cdcf29eabb9596d4a000769d6b041e

Thanks.

Kevin

---
>From b74a60df81cdcf29eabb9596d4a000769d6b041e Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde at broadcom.com>
Date: Tue, 4 Jan 2022 14:08:22 +0530
Subject: [PATCH] net/bnxt: fix crash by validating pointer

[ upstream commit 79fc1c531e0ae8a1f750639c82f7272d3117a220 ]

Validate the pointers in rxq before accessing them.
Otherwise it can cause a segfault.

Fixes: 657c2a7f1dd4 ("net/bnxt: create aggregation rings when needed")

Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
---
 drivers/net/bnxt/bnxt_rxq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index 9f1d1d4dba..cd3bb1446f 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -215,5 +215,7 @@ void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq)
 	}
 	/* Free up mbufs in Agg ring */
-	if (!bnxt_need_agg_ring(rxq->bp->eth_dev))
+	if (rxq->bp == NULL ||
+	    rxq->bp->eth_dev == NULL ||
+	    !bnxt_need_agg_ring(rxq->bp->eth_dev))
 		return;
 
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-02-21 15:22:46.030714711 +0000
+++ 0063-net-bnxt-fix-crash-by-validating-pointer.patch	2022-02-21 15:22:44.143704243 +0000
@@ -1 +1 @@
-From 79fc1c531e0ae8a1f750639c82f7272d3117a220 Mon Sep 17 00:00:00 2001
+From b74a60df81cdcf29eabb9596d4a000769d6b041e Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 79fc1c531e0ae8a1f750639c82f7272d3117a220 ]
+
@@ -10 +11,0 @@
-Cc: stable at dpdk.org