patch 'net/af_packet: fix crash in secondary process' has been queued to stable release 22.11.11

[luca.boccassi@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/1abf7e31f268f3ec07df0ef96f612cc9f6a9d332

Thanks.

Luca Boccassi

---
From 1abf7e31f268f3ec07df0ef96f612cc9f6a9d332 Mon Sep 17 00:00:00 2001
From: Kerem Aksu <kerem.aksu@i2i-systems.com>
Date: Fri, 12 Sep 2025 14:35:25 +0300
Subject: [PATCH] net/af_packet: fix crash in secondary process

[ upstream commit d57124f60ef60b24cd39e895cf6d211b93b897ae ]

dumpcap crashes when trying to capture from af_packet devices. This is
caused by allocating interface name with
strdup (i.e. malloc). Interface name is not accessible from secondary
process and causes segmentation fault. Use rte_malloc instead of
strdup to fix the issue.

Bugzilla ID: 1786
Fixes: 1b93c2aa81b4 ("net/af_packet: add interface name to internals")

Signed-off-by: Kerem Aksu <kerem.aksu@i2i-systems.com>
---
 .mailmap                                  | 1 +
 drivers/net/af_packet/rte_eth_af_packet.c | 7 ++++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/.mailmap b/.mailmap
index fb9c3d74f9..3ff821f286 100644
--- a/.mailmap
+++ b/.mailmap
@@ -729,6 +729,7 @@ Kefu Chai <tchaikov@gmail.com>
 Keiichi Watanabe <keiichiw@chromium.org>
 Keith Wiles <keith.wiles@intel.com> <keith.wiles@windriver.com>
 Kent Wires <kent.wires@intel.com>
+Kerem Aksu <kerem.aksu@i2i-systems.com>
 Keunhong Lee <dlrmsghd@gmail.com>
 Kevin Laatz <kevin.laatz@intel.com>
 Kevin Lampis <klampis@solarflare.com>
diff --git a/drivers/net/af_packet/rte_eth_af_packet.c b/drivers/net/af_packet/rte_eth_af_packet.c
index 0b059bfd0b..6803502c74 100644
--- a/drivers/net/af_packet/rte_eth_af_packet.c
+++ b/drivers/net/af_packet/rte_eth_af_packet.c
@@ -462,7 +462,7 @@ eth_dev_close(struct rte_eth_dev *dev)
 		rte_free(internals->rx_queue[q].rd);
 		rte_free(internals->tx_queue[q].rd);
 	}
-	free(internals->if_name);
+	rte_free(internals->if_name);
 	rte_free(internals->rx_queue);
 	rte_free(internals->tx_queue);
 
@@ -752,9 +752,10 @@ rte_pmd_init_internals(struct rte_vdev_device *dev,
 		PMD_LOG_ERRNO(ERR, "%s: ioctl failed (SIOCGIFINDEX)", name);
 		goto free_internals;
 	}
-	(*internals)->if_name = strdup(pair->value);
+	(*internals)->if_name = rte_malloc_socket(name, ifnamelen + 1, 0, numa_node);
 	if ((*internals)->if_name == NULL)
 		goto free_internals;
+	strlcpy((*internals)->if_name, pair->value, ifnamelen + 1);
 	(*internals)->if_index = ifr.ifr_ifindex;
 
 	if (ioctl(sockfd, SIOCGIFHWADDR, &ifr) == -1) {
@@ -941,7 +942,7 @@ error:
 free_internals:
 	rte_free((*internals)->rx_queue);
 	rte_free((*internals)->tx_queue);
-	free((*internals)->if_name);
+	rte_free((*internals)->if_name);
 	rte_free(*internals);
 	return -1;
 }
-- 
2.47.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-10-27 15:54:36.827302727 +0000
+++ 0055-net-af_packet-fix-crash-in-secondary-process.patch	2025-10-27 15:54:34.831950453 +0000
@@ -1 +1 @@
-From d57124f60ef60b24cd39e895cf6d211b93b897ae Mon Sep 17 00:00:00 2001
+From 1abf7e31f268f3ec07df0ef96f612cc9f6a9d332 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit d57124f60ef60b24cd39e895cf6d211b93b897ae ]
+
@@ -14 +15,0 @@
-Cc: stable@dpdk.org
@@ -23 +24 @@
-index ff13bf09fb..ff873856cb 100644
+index fb9c3d74f9..3ff821f286 100644
@@ -26 +27 @@
-@@ -830,6 +830,7 @@ Kefu Chai <tchaikov@gmail.com>
+@@ -729,6 +729,7 @@ Kefu Chai <tchaikov@gmail.com>
@@ -35 +36 @@
-index 85bc1201b4..de7ff63527 100644
+index 0b059bfd0b..6803502c74 100644
@@ -38 +39 @@
-@@ -525,7 +525,7 @@ eth_dev_close(struct rte_eth_dev *dev)
+@@ -462,7 +462,7 @@ eth_dev_close(struct rte_eth_dev *dev)
@@ -47 +48 @@
-@@ -875,9 +875,10 @@ rte_pmd_init_internals(struct rte_vdev_device *dev,
+@@ -752,9 +752,10 @@ rte_pmd_init_internals(struct rte_vdev_device *dev,
@@ -59 +60 @@
-@@ -1063,7 +1064,7 @@ error:
+@@ -941,7 +942,7 @@ error: