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SubjectRe: KASAN: null-ptr-deref Read in css_task_iter_advance
Hello, Hillf.

On Tue, Jun 11, 2019 at 12:59:23AM +0800, Hillf Danton wrote:
> >syzbot will keep track of this bug report. See:
> >https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> >
> Ignore my noise if you have no interest seeing the syzbot report.

They're awesome.

> The following tiny diff, made in the hope that it may help you perhaps
> reproduce the crash, waits css lock holders and then pick task off
> the list of dying tasks.

I already posted a fix. Well, at least I think it's the fix.

https://www.spinics.net/lists/cgroups/msg22468.html

Thanks.

--
tejun

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