timeout in mmo_get_symbols

[Alan Modra]

On Wed, Aug 17, 2022 at 07:29:03AM -0400, Hans-Peter Nilsson wrote:
> Thanks for the fuzzer mmo fixes.
> I have to ask, about the subject, "timeout"?
> Did this bug perhaps cause an infinite loop with some fuzzed
> object?

Yes.  https://oss-fuzz.com/testcase-detail/5712821022752768
(That link might not work until their next build when it should be
seen to be fixed and thus open to the public.)

Testcase attached too.

-- 
Alan Modra
Australia Development Lab, IBM
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