linux-kernel - [PATCH] kdb: Replace deprecated strcpy() with strscpy()

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Message-ID: <20250718213725.348363-2-thorsten.blum@linux.dev>
Date: Fri, 18 Jul 2025 23:37:23 +0200
From: Thorsten Blum <thorsten.blum@...ux.dev>
To: Jason Wessel <jason.wessel@...driver.com>,
	Daniel Thompson <danielt@...nel.org>,
	Douglas Anderson <dianders@...omium.org>,
	"Dr. David Alan Gilbert" <linux@...blig.org>,
	Zhang Heng <zhangheng@...inos.cn>
Cc: linux-hardening@...r.kernel.org,
	Thorsten Blum <thorsten.blum@...ux.dev>,
	kgdb-bugreport@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: [PATCH] kdb: Replace deprecated strcpy() with strscpy()

strcpy() is deprecated; use strscpy() instead.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
---
 kernel/debug/kdb/kdb_support.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
index 05b137e7dcb9..158430a890b6 100644
--- a/kernel/debug/kdb/kdb_support.c
+++ b/kernel/debug/kdb/kdb_support.c
@@ -23,6 +23,7 @@
 #include <linux/uaccess.h>
 #include <linux/kdb.h>
 #include <linux/slab.h>
+#include <linux/string.h>
 #include <linux/ctype.h>
 #include "kdb_private.h"
 
@@ -250,7 +251,8 @@ char *kdb_strdup(const char *str, gfp_t type)
 	char *s = kmalloc(n, type);
 	if (!s)
 		return NULL;
-	return strcpy(s, str);
+	strscpy(s, str, n);
+	return s;
 }
 
 /*
-- 
2.50.1