linux-kernel - [PATCH] ata: Replace deprecated strcpy with strscpy in it821x_display

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Message-ID: <20251018105146.29808-1-thorsten.blum@linux.dev>
Date: Sat, 18 Oct 2025 12:51:45 +0200
From: Thorsten Blum <thorsten.blum@...ux.dev>
To: Damien Le Moal <dlemoal@...nel.org>,
	Niklas Cassel <cassel@...nel.org>
Cc: linux-hardening@...r.kernel.org,
	Thorsten Blum <thorsten.blum@...ux.dev>,
	linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] ata: Replace deprecated strcpy with strscpy in it821x_display_disk

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

Replace the hard-coded buffer size 8 with sizeof(mbuf) when using
snprintf() while we're at it.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
---
 drivers/ata/pata_it821x.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 042f6ad1f7c6..fc762dcc61bf 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -75,6 +75,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/string.h>
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
 
@@ -632,9 +633,9 @@ static void it821x_display_disk(struct ata_port *ap, int n, u8 *buf)
 		cbl = "";
 
 	if (mode)
-		snprintf(mbuf, 8, "%5s%d", mtype, mode - 1);
+		snprintf(mbuf, sizeof(mbuf), "%5s%d", mtype, mode - 1);
 	else
-		strcpy(mbuf, "PIO");
+		strscpy(mbuf, "PIO");
 	if (buf[52] == 4)
 		ata_port_info(ap, "%d: %-6s %-8s          %s %s\n",
 				n, mbuf, types[buf[52]], id, cbl);
-- 
2.51.0