patch 'vhost: check GSO size validity' has been queued to stable release 22.11.8

[luca.boccassi@gmail.com]

Hi,

FYI, your patch has been queued to stable release 22.11.8

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/19/25. 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/63bff5d105c47713a59c84753a0af0185cc34759

Thanks.

Luca Boccassi

---
From 63bff5d105c47713a59c84753a0af0185cc34759 Mon Sep 17 00:00:00 2001
From: Yunjian Wang <wangyunjian@huawei.com>
Date: Fri, 20 Dec 2024 11:45:09 +0800
Subject: [PATCH] vhost: check GSO size validity

[ upstream commit 7023f3e532787eec7be674efb7a4aa54f1626b6c ]

The value of tso_segsz cannot be 0, instead check that value of
gso_size was set.

Fixes: d0cf91303d73 ("vhost: add Tx offload capabilities")

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/vhost/virtio_net.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/vhost/virtio_net.c b/lib/vhost/virtio_net.c
index 9c9d05d4d9..f16b7c45da 100644
--- a/lib/vhost/virtio_net.c
+++ b/lib/vhost/virtio_net.c
@@ -2503,6 +2503,9 @@ vhost_dequeue_offload_legacy(struct virtio_net *dev, struct virtio_net_hdr *hdr,
 	}
 
 	if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) {
+		if (hdr->gso_size == 0)
+			goto error;
+
 		switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
 		case VIRTIO_NET_HDR_GSO_TCPV4:
 		case VIRTIO_NET_HDR_GSO_TCPV6:
-- 
2.47.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-02-17 16:13:17.020932861 +0000
+++ 0003-vhost-check-GSO-size-validity.patch	2025-02-17 16:13:16.782441593 +0000
@@ -1 +1 @@
-From 7023f3e532787eec7be674efb7a4aa54f1626b6c Mon Sep 17 00:00:00 2001
+From 63bff5d105c47713a59c84753a0af0185cc34759 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 7023f3e532787eec7be674efb7a4aa54f1626b6c ]
+
@@ -10 +11,0 @@
-Cc: stable@dpdk.org
@@ -19 +20 @@
-index 69901ab3b5..2ac5bc29a3 100644
+index 9c9d05d4d9..f16b7c45da 100644
@@ -22 +23 @@
-@@ -2733,6 +2733,9 @@ vhost_dequeue_offload_legacy(struct virtio_net *dev, struct virtio_net_hdr *hdr,
+@@ -2503,6 +2503,9 @@ vhost_dequeue_offload_legacy(struct virtio_net *dev, struct virtio_net_hdr *hdr,