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

Message ID 202211220858139474929@zte.com.cn
State New
Headers
Series [linux-next] vboxfs: use strscpy() is more robust and safer |

Commit Message

Yang Yang Nov. 22, 2022, 12:58 a.m. UTC
  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(-)
  

Comments

Hans de Goede Nov. 22, 2022, 2:44 p.m. UTC | #1
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) {
  

Patch

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) {