From 23add15a3f66ace513e3b8b3f434d135d33b2e7b Mon Sep 17 00:00:00 2001
From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Thu, 28 May 2026 02:10:50 +0200
Subject: [PATCH] wifi: cfg80211: use strscpy in cfg80211_wext_giwname

strcpy() has been deprecated [1] because it performs no bounds checking
on the destination buffer, which can lead to buffer overflows.

While the current code works correctly, replace strcpy() with the safer
strscpy() to follow secure coding best practices.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260528001049.1394078-2-thorsten.blum@linux.dev
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/wext-compat.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index c3aa56977243..5dbf3ef4b257 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -16,6 +16,7 @@
 #include <linux/if_arp.h>
 #include <linux/etherdevice.h>
 #include <linux/slab.h>
+#include <linux/string.h>
 #include <net/iw_handler.h>
 #include <net/cfg80211.h>
 #include <net/cfg80211-wext.h>
@@ -27,7 +28,7 @@ int cfg80211_wext_giwname(struct net_device *dev,
 			  struct iw_request_info *info,
 			  union iwreq_data *wrqu, char *extra)
 {
-	strcpy(wrqu->name, "IEEE 802.11");
+	strscpy(wrqu->name, "IEEE 802.11");
 	return 0;
 }