linux-kernel - [PATCH v4 5/5] mm: huge_memory: Use strscpy() instead of strcpy()

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Message-ID: <20241101164313.1073238-7-mcanal@igalia.com>
Date: Fri,  1 Nov 2024 13:38:46 -0300
From: Maíra Canal <mcanal@...lia.com>
To: Jonathan Corbet <corbet@....net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>,
	Barry Song <baohua@...nel.org>,
	David Hildenbrand <david@...hat.com>,
	Ryan Roberts <ryan.roberts@....com>,
	Baolin Wang <baolin.wang@...ux.alibaba.com>,
	Lance Yang <ioworker0@...il.com>
Cc: linux-mm@...ck.org,
	dri-devel@...ts.freedesktop.org,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel-dev@...lia.com,
	Maíra Canal <mcanal@...lia.com>
Subject: [PATCH v4 5/5] mm: huge_memory: Use strscpy() instead of strcpy()

Replace strcpy() with strscpy() in mm/huge_memory.c

strcpy() has been deprecated because it is generally unsafe, so help to
eliminate it from the kernel source.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Maíra Canal <mcanal@...lia.com>
Reviewed-by: Lance Yang <ioworker0@...il.com>
---
 mm/huge_memory.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index a6edbd8c4f49..1ebe18ec4560 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -969,7 +969,7 @@ static int __init setup_thp_anon(char *str)
 
 	if (!str || strlen(str) + 1 > PAGE_SIZE)
 		goto err;
-	strcpy(str_dup, str);
+	strscpy(str_dup, str);
 
 	always = huge_anon_orders_always;
 	madvise = huge_anon_orders_madvise;
@@ -4167,7 +4167,7 @@ static ssize_t split_huge_pages_write(struct file *file, const char __user *buf,
 
 		tok = strsep(&buf, ",");
 		if (tok) {
-			strcpy(file_path, tok);
+			strscpy(file_path, tok);
 		} else {
 			ret = -EINVAL;
 			goto out;
-- 
2.46.2