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NationalSecurityAgency / ghidra

Ghidra is a software reverse engineering (SRE) framework
https://www.nsa.gov/ghidra
Apache License 2.0
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Ghidra cannot recognize pointer type in decompiler #5829

Open b00tkitism opened 1 year ago

b00tkitism commented 1 year ago

Describe the bug I analyzed a single function in both IDA and Ghidra, IDA can recognize pointer type of a variable, but Ghidra can't, both of them know that type exists.

To Reproduce unfortunately I don't know how you can reproduce this, I analyzed a malware

Expected behavior Ghidra should recognize pointer type and cast that value to that type

Environment (please complete the following information):

ryanmkurtz commented 1 year ago

There is not enough information here for us to be able to act on anything. We would need some screen shots of the difference and the binary attached to proceed.

b00tkitism commented 1 year ago

@ryanmkurtz I cannot attach the binary, because it's somehow private. But I'll share the screenshots.

b00tkitism commented 1 year ago

Ghidra: image image

IDA pro: image image

b00tkitism commented 1 year ago

Any thoughts on this ?

astrelsky commented 1 year ago

The poor decompilation is the result of user error because the type of m_pCoverEntity is probably not defined. However, if this information should have come from debug information then there may be a bug in that processing.