From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
stable@dpdk.org, Byron Marohn <byron.marohn@intel.com>,
Yipeng Wang <yipeng1.wang@intel.com>,
Pablo de Lara <pablo.de.lara.guarch@intel.com>,
Saikrishna Edupuganti <saikrishna.edupuganti@intel.com>,
Christian Maciocco <christian.maciocco@intel.com>
Subject: [PATCH 1/3] examples/server_node_efd: fix format overflow
Date: Mon, 10 Nov 2025 10:19:33 -0800 [thread overview]
Message-ID: <20251110182209.104087-2-stephen@networkplumber.org> (raw)
In-Reply-To: <20251110182209.104087-1-stephen@networkplumber.org>
If format-truncation is enabled, the compiler detects a string overflow
since the snprintf() is putting ethernet address and new line
in buffer only sized for the address.
Fixes: 39aad0e88c58 ("examples/flow_distributor: new example to demonstrate EFD")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
examples/server_node_efd/efd_server/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/examples/server_node_efd/efd_server/main.c b/examples/server_node_efd/efd_server/main.c
index 75ff0ea532..62c3f4a16d 100644
--- a/examples/server_node_efd/efd_server/main.c
+++ b/examples/server_node_efd/efd_server/main.c
@@ -68,7 +68,7 @@ static const char *
get_printable_mac_addr(uint16_t port)
{
static const char err_address[] = "00:00:00:00:00:00";
- static char addresses[RTE_MAX_ETHPORTS][sizeof(err_address)];
+ static char addresses[RTE_MAX_ETHPORTS][RTE_ETHER_ADDR_FMT_SIZE + 1];
struct rte_ether_addr mac;
int ret;
--
2.51.0
next parent reply other threads:[~2025-11-10 18:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20251110182209.104087-1-stephen@networkplumber.org>
2025-11-10 18:19 ` Stephen Hemminger [this message]
2025-11-10 18:19 ` [PATCH 2/3] examples/vdpa: fix format overflow warning Stephen Hemminger
[not found] ` <20251111221857.443752-1-stephen@networkplumber.org>
2025-11-11 22:17 ` [PATCH v2 1/7] examples/server_node_efd: fix format overflow Stephen Hemminger
2025-11-11 22:17 ` [PATCH v2 2/7] examples/vdpa: fix format overflow warning Stephen Hemminger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251110182209.104087-2-stephen@networkplumber.org \
--to=stephen@networkplumber.org \
--cc=byron.marohn@intel.com \
--cc=christian.maciocco@intel.com \
--cc=dev@dpdk.org \
--cc=pablo.de.lara.guarch@intel.com \
--cc=saikrishna.edupuganti@intel.com \
--cc=stable@dpdk.org \
--cc=yipeng1.wang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).