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Binary fuzzer fails for required fields #209

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vishwacs111 opened this issue Jul 7, 2022 · 0 comments

vishwacs111 commented Jul 7, 2022

The binary format parser uses ParsePartialFromString while parsing the message:

libprotobuf-mutator/src/binary_format.cc

Line 28 in a304ec4

if (!output->ParsePartialFromString(data)) {

However the LoadProtoInput calls mutator fix which expects an initialized message (i.e. with all the required fields set).

I think the binary format parser should use ParseFromString instead of ParsePartialFromString.

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