patch 'net/ena/base: fix unsafe memcpy on invalid memory' has been queued to stable release 22.11.11

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 22.11.11

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 10/29/25. 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/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/dc02906bd29022033d42eb96823010b852f4d100

Thanks.

Luca Boccassi

---
>From dc02906bd29022033d42eb96823010b852f4d100 Mon Sep 17 00:00:00 2001
From: Shai Brandes <shaibran at amazon.com>
Date: Wed, 15 Oct 2025 15:12:30 +0300
Subject: [PATCH] net/ena/base: fix unsafe memcpy on invalid memory

[ upstream commit b70db0912a6a181ecf513a4eef61153d1063c0ae ]

The return status check was placed after a memcpy operation,
which could result in copying from an invalid memory region
if the feature fetch failed.

Fixes: b68309be44c0 ("net/ena/base: update communication layer for the ENAv2")

Signed-off-by: Shai Brandes <shaibran at amazon.com>
Reviewed-by: Amit Bernstein <amitbern at amazon.com>
Reviewed-by: Yosef Raisman <yraisman at amazon.com>
---
 drivers/net/ena/base/ena_com.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ena/base/ena_com.c b/drivers/net/ena/base/ena_com.c
index 98035f3cd4..4e22b5f563 100644
--- a/drivers/net/ena/base/ena_com.c
+++ b/drivers/net/ena/base/ena_com.c
@@ -2014,13 +2014,13 @@ int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,
 	} else {
 		rc = ena_com_get_feature(ena_dev, &get_resp,
 					 ENA_ADMIN_MAX_QUEUES_NUM, 0);
+		if (rc)
+			return rc;
+
 		memcpy(&get_feat_ctx->max_queues, &get_resp.u.max_queue,
 		       sizeof(get_resp.u.max_queue));
 		ena_dev->tx_max_header_size =
 			get_resp.u.max_queue.max_header_size;
-
-		if (rc)
-			return rc;
 	}
 
 	rc = ena_com_get_feature(ena_dev, &get_resp,
-- 
2.47.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-10-27 15:54:37.305959051 +0000
+++ 0069-net-ena-base-fix-unsafe-memcpy-on-invalid-memory.patch	2025-10-27 15:54:34.843950754 +0000
@@ -1 +1 @@
-From b70db0912a6a181ecf513a4eef61153d1063c0ae Mon Sep 17 00:00:00 2001
+From dc02906bd29022033d42eb96823010b852f4d100 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit b70db0912a6a181ecf513a4eef61153d1063c0ae ]
+
@@ -11 +12,0 @@
-Cc: stable at dpdk.org
@@ -21 +22 @@
-index ede3c06139..f0936a6262 100644
+index 98035f3cd4..4e22b5f563 100644
@@ -24 +25 @@
-@@ -2453,13 +2453,13 @@ int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,
+@@ -2014,13 +2014,13 @@ int ena_com_get_dev_attr_feat(struct ena_com_dev *ena_dev,