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SubjectRe: mm: BUG in resv_map_release
On Thu, 23 Mar 2017 11:19:38 +0100 Dmitry Vyukov <dvyukov@google.com> wrote:

> Hello,
>
> I've got the following BUG while running syzkaller fuzzer.
> Note the injected kmalloc failure, most likely it's the root cause.
>

Yes, probably the logic(?) in region_chg() leaked a
resv->adds_in_progress++, although I'm not sure how. And afaict that
code can leak the memory at *nrg if the `trg' allocation attempt failed
on the second or later pass around the retry loop.

Blah. Does someone want to take a look at it?

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