Re: [PATCH] dma-buf: free dmabuf->name in dma_buf_release()

[Andrew Morton]

On Tue, 25 Feb 2020 12:44:46 -0800 Cong Wang <xiyou.wangcong@xxxxxxxxx> wrote:

> dma-buff name can be set via DMA_BUF_SET_NAME ioctl, but once set
> it never gets freed.
> 
> Free it in dma_buf_release().
> 
> ...
>
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -108,6 +108,7 @@ static int dma_buf_release(struct inode *inode, struct file *file)
>  		dma_resv_fini(dmabuf->resv);
>  
>  	module_put(dmabuf->owner);
> +	kfree(dmabuf->name);
>  	kfree(dmabuf);
>  	return 0;
>  }

ow.  Is that ioctl privileged?