From: David Laight <david.laight.linux@gmail.com>
Date: Sat, 6 Jun 2026 20:25:57 +0000 (+0100)
Subject: gpiolib: Replace strcpy() with memcpy()
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=25afa211ae336569ddd0043f77e25e1b9b48c4d8;p=thirdparty%2Flinux.git

gpiolib: Replace strcpy() with memcpy()

The length of the string is calculated in order to allocate the correct
sized memory block, use the same length to copy the string.

Signed-off-by: David Laight <david.laight.linux@gmail.com>
Link: https://patch.msgid.link/20260606202633.5018-3-david.laight.linux@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
---

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index ac2779dbe42b5..7bb6f114d64d9 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -143,13 +143,15 @@ static void desc_free_label(struct rcu_head *rh)
 static int desc_set_label(struct gpio_desc *desc, const char *label)
 {
 	struct gpio_desc_label *new = NULL, *old;
+	size_t len;
 
 	if (label) {
-		new = kzalloc_flex(*new, str, strlen(label) + 1);
+		len = strlen(label);
+		new = kzalloc_flex(*new, str, len + 1);
 		if (!new)
 			return -ENOMEM;
 
-		strcpy(new->str, label);
+		memcpy(new->str, label, len);
 	}
 
 	old = rcu_replace_pointer(desc->label, new, 1);