avast / avast/retdec

Bug in bin2llvmir Decoder

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Dominant language
C++
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Description

I try to translate the following ELF file using the least 4.0 release version:

[3_cbv700_0_EP.elf.zip](https://github.com/avast/retdec/files/6645777/3_cbv700_0_EP.elf.zip)

But in the decoder phase, the retdec just gets an error and exits:

屏幕快照 2021-06-14 13 17 48

Contributor guide

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Research direction

Start by running bin2llvmir from the least 4.0 release against the attached 3_cbv700_0_EP.elf file and capture the decoder error shown in the report. Read the decoder entry point and relevant diagnostics to identify why this ELF fails; done means the file translates past the decoder phase without the reported error.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
reverse-engineering
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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