Entrypoint trap trimed out: the forkserver injection failed, or the target process never reached its entrypoint. about winnie HOT 6 OPEN

Could you compile in Debug mode and run it? There should be some more output I think

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I'm having the same issue. The only additional information that came out of compiling in debug mode is:

TRACE: Watchdog timeout

Otherwise, it is identical to OP's output above.

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Hi, I am facing the same problem.

cmd: toy_example.exe out.cur_input
PEB=0x000000000028B000, Base address=0x0000000000030000
Binname: toy_example.exe, OEP: 0000000000001438
Entrypoint = 0000000000031438
TRACE: Watchdog timeout

[-] PROGRAM ABORT : Entrypoint trap trimed out: the forkserver injection failed, or the target process never reached its entrypoint.

     Location : spawn_child_with_injection(), e:\winnie\afl-fuzz\forkserver.c:448

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@HE-UMU @kmackinley @newuser54
I figured it out. It is because the DLL injection works only when 32bit injects 32 exe or 64 bit inject 64bit. In this repo, the author by default sets the toy_example project to x86. Recompile both afl-fuzzer and toy_example.exe with x64 works.

However, I am facing another bug: "Failed to set process affinity" pops up in the forkserver.exe. Still working on this issue.

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Ohhhh, finally it worked. I configured the virtual machine to contain 4 cores rather than one core and the problem solved. This is really a damn awesome project!

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@LeoLiu-2020 Thank you!

I will update the documentation to specify the machine must be multicore.

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