WinAFL Internal Crash at PC 0x5a1a456e about winafl HOT 6 OPEN

Such errors usually indicate either incorrect usage or incompatibility between the target and DynamoRIO.

To diagnose the first type of issue, use debug mode as explained in https://github.com/googleprojectzero/winafl/blob/master/readme_dr.md

For the second type of issue, try using TinyInst mode instead of DynamoRIO (note: some flags have different names in TinyInst mode)

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Ah, sorry, I see this is an error already with the Debug mode. Would try TinyInst and see if that runs without issues.

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I will try with TinyInst.

What would cause an incompatibility issue between the target and DynamoRIO?

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I faced a similar issue, but I resolved it by using a different version of DynamoRIO.
This is the version I use most often with the latest winafl.

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@J-jaeyoung I tried this and am no longer seeing the pop up but in the command prompt I am seeing a similar error of:
WinAFL internal crash at PC 0x5ad958ff.

Have you had similar issues?

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If you encounter similar errors while using drrun.exe -t drcov -- <options>, it might be an issue with DynamoRIO.
If that's the case, I recommend not using DynamoRIO and considering alternatives like TinyInst or Intel PT.

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