patch 'examples/ipsec-secgw: fix crash with IPv6' has been queued to stable release 23.11.5

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 23.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/10/25. 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://git.dpdk.org/dpdk-stable/log/?h=23.11-staging

This queued commit can be viewed at:
https://git.dpdk.org/dpdk-stable/commit/?h=23.11-staging&id=e00f818f69338496e90f518ff6af83433e4e6484

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From e00f818f69338496e90f518ff6af83433e4e6484 Mon Sep 17 00:00:00 2001
From: Rakesh Kudurumalla <rkudurumalla at marvell.com>
Date: Thu, 27 Mar 2025 12:33:00 +0530
Subject: [PATCH] examples/ipsec-secgw: fix crash with IPv6
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit d03869e8e9c7c46bf7637d221ca6921516764109 ]

While running ipsec-secgw application if IPv6 rules are not
configured in IPsec configuration, LPM look up fails and
destination port is updated as BAD_PORT. During process_packet
ethernet_hdr is updated resulting in crash due to out of bound.
This patch fixes the same.

Fixes: 6eb3ba03995c ("examples/ipsec-secgw: support poll mode NEON LPM lookup")

Signed-off-by: Rakesh Kudurumalla <rkudurumalla at marvell.com>
---
 examples/ipsec-secgw/ipsec_neon.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/examples/ipsec-secgw/ipsec_neon.h b/examples/ipsec-secgw/ipsec_neon.h
index 8b93b4b52e..fc04000336 100644
--- a/examples/ipsec-secgw/ipsec_neon.h
+++ b/examples/ipsec-secgw/ipsec_neon.h
@@ -23,6 +23,7 @@ processx4_step3(struct rte_mbuf *pkts[FWDSTEP], uint16_t dst_port[FWDSTEP],
 	uint32x4_t ve[FWDSTEP];
 	uint32_t *p[FWDSTEP];
 	struct rte_mbuf *pkt;
+	uint16_t port;
 	uint32_t val;
 	uint8_t i;
 
@@ -34,7 +35,8 @@ processx4_step3(struct rte_mbuf *pkts[FWDSTEP], uint16_t dst_port[FWDSTEP],
 			*l_pkt |= 1;
 
 		p[i] = rte_pktmbuf_mtod(pkt, uint32_t *);
-		ve[i] = vreinterpretq_u32_s32(val_eth[dst_port[i]]);
+		port = (dst_port[i] == BAD_PORT) ? 0 : dst_port[i];
+		ve[i] = vreinterpretq_u32_s32(val_eth[port]);
 		te[i] = vld1q_u32(p[i]);
 
 		/* Update last 4 bytes */
@@ -76,6 +78,7 @@ process_packet(struct rte_mbuf *pkt, uint16_t *dst_port, uint64_t tx_offloads,
 {
 	struct rte_ether_hdr *eth_hdr;
 	uint32x4_t te, ve;
+	uint16_t port;
 	uint32_t val;
 
 	/* Check if it is a large packet */
@@ -85,7 +88,8 @@ process_packet(struct rte_mbuf *pkt, uint16_t *dst_port, uint64_t tx_offloads,
 	eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
 
 	te = vld1q_u32((uint32_t *)eth_hdr);
-	ve = vreinterpretq_u32_s32(val_eth[dst_port[0]]);
+	port = (dst_port[0] == BAD_PORT) ? 0 : dst_port[0];
+	ve = vreinterpretq_u32_s32(val_eth[port]);
 
 	val = vgetq_lane_u32(te, 3);
 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-07-30 15:02:13.069972929 +0800
+++ 0008-examples-ipsec-secgw-fix-crash-with-IPv6.patch	2025-07-30 15:02:12.774913471 +0800
@@ -1 +1 @@
-From d03869e8e9c7c46bf7637d221ca6921516764109 Mon Sep 17 00:00:00 2001
+From e00f818f69338496e90f518ff6af83433e4e6484 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit d03869e8e9c7c46bf7637d221ca6921516764109 ]
@@ -13 +15,0 @@
-Cc: stable at dpdk.org