On Tue, Jun 16, 2020 at 07:24:07PM +0800, Jason Yan wrote: > This commit added accessing bdev->bd_mutex before checking res, which will > cause use-after-free. So I think the fixes tag should be: > > Fixes: 77ea887e433a ("implement in-kernel gendisk events handling") Yeah. That looks right. I'm surprised it goes back so far. regards, dan carpenter