From: Andrew Goodbody <andrew.goodbody@linaro.org>
Date: Thu, 17 Jul 2025 11:09:15 +0000 (+0100)
Subject: sandbox: eth-raw: Prevent possible buffer overflow
X-Git-Tag: v2025.10-rc1~16
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c0827eededc8392472823d8e3e50cd0f5fad47b;p=thirdparty%2Fu-boot.git

sandbox: eth-raw: Prevent possible buffer overflow

Instead of strcpy which is unbounded use strlcpy to ensure that the
receiving buffer cannot be overflowed.

This issue found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
---

diff --git a/drivers/net/sandbox-raw-bus.c b/drivers/net/sandbox-raw-bus.c
index 15670d6d24a..c698a07c784 100644
--- a/drivers/net/sandbox-raw-bus.c
+++ b/drivers/net/sandbox-raw-bus.c
@@ -42,7 +42,7 @@ static int eth_raw_bus_post_bind(struct udevice *dev)
 		device_probe(child);
 		priv = dev_get_priv(child);
 		if (priv) {
-			strcpy(priv->host_ifname, i->if_name);
+			strlcpy(priv->host_ifname, i->if_name, IFNAMSIZ);
 			priv->host_ifindex = i->if_index;
 			priv->local = local;
 		}