patch 'net/gve: validate buffer ID before processing Rx packet' has been queued to stable release 25.11.3

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 25.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/04/26. 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/da9c5259ebf87ffc5cb1190d6320233bc7c6e096

Thanks.

Kevin

---
>From da9c5259ebf87ffc5cb1190d6320233bc7c6e096 Mon Sep 17 00:00:00 2001
From: Joshua Washington <joshwash at google.com>
Date: Wed, 8 Jul 2026 21:07:32 -0700
Subject: [PATCH] net/gve: validate buffer ID before processing Rx packet

[ upstream commit e2422b23a6a3cce9537b534503179a09438fec22 ]

The buffer id is part of the RX completion descriptor for packets in the
DQ format. This value can technically go up to 64K, while the max RX
ring size is 4K, meaning that there could similarly be an expected 4K RX
buffer IDs. Validate that the RX buffer ID is valid before attempting to
access it in the sw_ring to prevent a potential out of bounds in the
event of a hardware error.

Fixes: 1aed73b23ac0 ("net/gve: support out-of-order completions on DQ Rx")

Signed-off-by: Joshua Washington <joshwash at google.com>
Reviewed-by: Jasper Tran O'Leary <jtranoleary at google.com>
---
 drivers/net/gve/gve_rx_dqo.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/gve/gve_rx_dqo.c b/drivers/net/gve/gve_rx_dqo.c
index a0ef21bc8e..c1544418b9 100644
--- a/drivers/net/gve/gve_rx_dqo.c
+++ b/drivers/net/gve/gve_rx_dqo.c
@@ -188,4 +188,9 @@ gve_rx_burst_dqo(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 
 		rx_buf_id = rte_le_to_cpu_16(rx_desc->buf_id);
+		if (unlikely(rx_buf_id >= rxq->nb_rx_desc)) {
+			PMD_DRV_DP_LOG(ERR, "Invalid buf_id %d", rx_buf_id);
+			continue;
+		}
+
 		rxm = rxq->sw_ring[rx_buf_id];
 		gve_completed_buf_list_push(rxq, rx_buf_id);
-- 
2.55.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2026-07-30 10:16:02.801408278 +0100
+++ 0045-net-gve-validate-buffer-ID-before-processing-Rx-pack.patch	2026-07-30 10:16:01.483291819 +0100
@@ -1 +1 @@
-From e2422b23a6a3cce9537b534503179a09438fec22 Mon Sep 17 00:00:00 2001
+From da9c5259ebf87ffc5cb1190d6320233bc7c6e096 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit e2422b23a6a3cce9537b534503179a09438fec22 ]
+
@@ -14 +15,0 @@
-Cc: stable at dpdk.org
@@ -23 +24 @@
-index cc343f3fd8..c4e2d32067 100644
+index a0ef21bc8e..c1544418b9 100644
@@ -26 +27 @@
-@@ -201,4 +201,9 @@ gve_rx_burst_dqo(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
+@@ -188,4 +188,9 @@ gve_rx_burst_dqo(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)