[PATCH linux-next] vboxfs: use strscpy() is more robust and safer

yang.yang29@zte.com.cn posted 1 patch 3 years, 4 months ago
fs/vboxsf/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH linux-next] vboxfs: use strscpy() is more robust and safer
Posted by yang.yang29@zte.com.cn 3 years, 4 months ago
From: Xu Panda <xu.panda@zte.com.cn>

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
---
 fs/vboxsf/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/vboxsf/super.c b/fs/vboxsf/super.c
index d2f6df69f611..1fb8f4df60cb 100644
--- a/fs/vboxsf/super.c
+++ b/fs/vboxsf/super.c
@@ -176,7 +176,7 @@ static int vboxsf_fill_super(struct super_block *sb, struct fs_context *fc)
 	}
 	folder_name->size = size;
 	folder_name->length = size - 1;
-	strlcpy(folder_name->string.utf8, fc->source, size);
+	strscpy(folder_name->string.utf8, fc->source, size);
 	err = vboxsf_map_folder(folder_name, &sbi->root);
 	kfree(folder_name);
 	if (err) {
-- 
2.15.2
Re: [PATCH linux-next] vboxfs: use strscpy() is more robust and safer
Posted by Hans de Goede 3 years, 4 months ago
Hi,

On 11/22/22 01:58, yang.yang29@zte.com.cn wrote:
> From: Xu Panda <xu.panda@zte.com.cn>
> 
> The implementation of strscpy() is more robust and safer.
> That's now the recommended way to copy NUL terminated strings.
> 
> Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
> Signed-off-by: Yang Yang <yang.yang29@zte.com>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@redhat.com>

Regards,

Hans



> ---
>  fs/vboxsf/super.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/vboxsf/super.c b/fs/vboxsf/super.c
> index d2f6df69f611..1fb8f4df60cb 100644
> --- a/fs/vboxsf/super.c
> +++ b/fs/vboxsf/super.c
> @@ -176,7 +176,7 @@ static int vboxsf_fill_super(struct super_block *sb, struct fs_context *fc)
>  	}
>  	folder_name->size = size;
>  	folder_name->length = size - 1;
> -	strlcpy(folder_name->string.utf8, fc->source, size);
> +	strscpy(folder_name->string.utf8, fc->source, size);
>  	err = vboxsf_map_folder(folder_name, &sbi->root);
>  	kfree(folder_name);
>  	if (err) {