Messages in this thread | | | Date | Tue, 28 Mar 2017 16:38:23 -0700 | From | Andrew Morton <> | Subject | Re: mm: BUG in resv_map_release |
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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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