Re: [PATCH v4] block: Fix use-after-free in blkdev_get()

From: Sedat Dilek
Date: Mon Jun 08 2020 - 02:47:27 EST


On Mon, Jun 8, 2020 at 8:18 AM Christoph Hellwig <hch@xxxxxx> wrote:
>
> Looks good,
>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
>
> Can you dig into the history for a proper fixes tag?

[ CC Dan ]

Dan gave the hint for the Fixes: tag in reply to the first patch:

> The Fixes tag is a good idea though:
>
> Fixes: 89e524c04fa9 ("loop: Fix mount(2) failure due to race with LOOP_SET_FD")

> It broke last July. Before that, we used to check if __blkdev_get()
> failed before dereferencing "bdev".

- Sedat -