On Tue, 25 Feb 2020 12:44:46 -0800 Cong Wang xiyou.wangcong@gmail.com 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?