From: Stephen Zhang <stephenzhangzsd@gmail.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Stephen Zhang <stephenzhangzsd@gmail.com>
Subject: [PATCH] mm/memfd: replace strcpy() by strscpy()
Date: Sun, 24 Jan 2021 10:23:37 +0800 [thread overview]
Message-ID: <1611455017-2210-1-git-send-email-stephenzhangzsd@gmail.com> (raw)
The strcpy() function is being deprecated. Replace it by the safer
strscpy().
Signed-off-by: Stephen Zhang <stephenzhangzsd@gmail.com>
---
mm/memfd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memfd.c b/mm/memfd.c
index 2647c89..bb90862 100644
--- a/mm/memfd.c
+++ b/mm/memfd.c
@@ -278,7 +278,7 @@ long memfd_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
if (!name)
return -ENOMEM;
- strcpy(name, MFD_NAME_PREFIX);
+ strscpy(name, MFD_NAME_PREFIX, len + MFD_NAME_PREFIX_LEN);
if (copy_from_user(&name[MFD_NAME_PREFIX_LEN], uname, len)) {
error = -EFAULT;
goto err_name;
--
1.8.3.1
next reply other threads:[~2021-01-24 2:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-24 2:23 Stephen Zhang [this message]
2021-01-24 4:06 ` [PATCH] mm/memfd: replace strcpy() by strscpy() Matthew Wilcox
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