Re: [PATCH] efi, pstore: Cocci spatch "memdup.spatch"

From: Kees Cook
Date: Sat Jun 01 2013 - 13:11:47 EST


On Sat, Jun 1, 2013 at 2:40 AM, Thomas Meyer <thomas@xxxxxxxx> wrote:
>
> Signed-off-by: Thomas Meyer <thomas@xxxxxxxx>

Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>

Thanks!

-Kees

> ---
>
> diff -u -p a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
> --- a/drivers/firmware/efi/efi-pstore.c
> +++ b/drivers/firmware/efi/efi-pstore.c
> @@ -79,10 +79,9 @@ static int efi_pstore_read_func(struct e
> &entry->var.DataSize, entry->var.Data);
> size = entry->var.DataSize;
>
> - *cb_data->buf = kmalloc(size, GFP_KERNEL);
> + *cb_data->buf = kmemdup(entry->var.Data, size, GFP_KERNEL);
> if (*cb_data->buf == NULL)
> return -ENOMEM;
> - memcpy(*cb_data->buf, entry->var.Data, size);
> return size;
> }
>
>
>
>



--
Kees Cook
Chrome OS Security
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