patch 'ring: fix overflow in memory size calculation' has been queued to stable release 20.11.5

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/20/22. 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/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/19746aaeabb2a7865a02e95d76f454529839a480

Thanks.

Luca Boccassi

---
>From 19746aaeabb2a7865a02e95d76f454529839a480 Mon Sep 17 00:00:00 2001
From: Zhihong Wang <wangzhihong.wzh at bytedance.com>
Date: Tue, 14 Dec 2021 11:30:16 +0800
Subject: [PATCH] ring: fix overflow in memory size calculation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ upstream commit 0e4dc6af06228c8504a5538512cb31ed7bf6cc23 ]

Parameters count and esize are both unsigned int, and their product can
legaly exceed unsigned int and lead to runtime access violation.

Fixes: cc4b218790f6 ("ring: support configurable element size")

Signed-off-by: Zhihong Wang <wangzhihong.wzh at bytedance.com>
Reviewed-by: Liang Ma <liangma at liangbit.com>
Reviewed-by: Morten Brørup <mb at smartsharesystems.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
---
 lib/librte_ring/rte_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_ring/rte_ring.c b/lib/librte_ring/rte_ring.c
index 185f9be798..6a94a038c4 100644
--- a/lib/librte_ring/rte_ring.c
+++ b/lib/librte_ring/rte_ring.c
@@ -75,7 +75,7 @@ rte_ring_get_memsize_elem(unsigned int esize, unsigned int count)
 		return -EINVAL;
 	}
 
-	sz = sizeof(struct rte_ring) + count * esize;
+	sz = sizeof(struct rte_ring) + (ssize_t)count * esize;
 	sz = RTE_ALIGN(sz, RTE_CACHE_LINE_SIZE);
 	return sz;
 }
-- 
2.30.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-02-18 12:37:40.828207500 +0000
+++ 0075-ring-fix-overflow-in-memory-size-calculation.patch	2022-02-18 12:37:37.750793260 +0000
@@ -1 +1 @@
-From 0e4dc6af06228c8504a5538512cb31ed7bf6cc23 Mon Sep 17 00:00:00 2001
+From 19746aaeabb2a7865a02e95d76f454529839a480 Mon Sep 17 00:00:00 2001
@@ -8,0 +9,2 @@
+[ upstream commit 0e4dc6af06228c8504a5538512cb31ed7bf6cc23 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org
@@ -20 +21 @@
- lib/ring/rte_ring.c | 2 +-
+ lib/librte_ring/rte_ring.c | 2 +-
@@ -23 +24 @@
-diff --git a/lib/ring/rte_ring.c b/lib/ring/rte_ring.c
+diff --git a/lib/librte_ring/rte_ring.c b/lib/librte_ring/rte_ring.c
@@ -25,2 +26,2 @@
---- a/lib/ring/rte_ring.c
-+++ b/lib/ring/rte_ring.c
+--- a/lib/librte_ring/rte_ring.c
++++ b/lib/librte_ring/rte_ring.c