linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Issues related to VMProtect
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

Program protected by vmp 3.1.2 will crash in c5 series instance. No matter what kind of linux system: CentOS 、Ubuntu. Only show "Segmentation fault".

However, the program protected by vmp 3.1.2 can run in c4 / m4 series instances, without any problem.

Please help to fix this problem.
Thank you
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

If you need a server to test, I can allocate an test instance for you.
Admin
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Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by Admin »

What about VMProtect 3.2?
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

VMProtect 3.2 is the same phenomenon as VMProtect 3.1.2

demo.c:

Code: Select all

#include <stdio.h>
int main()
{
    printf("This is a test.\n");
    printf("Test done.\n");
    return 0;
}

gcc demo.c -o demo

./demo
This is a test.
Test done.

./demo_vmp
Segmentation fault
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

Is it due to certain characteristics of the CPU?
The only difference between C4 and C5 instance is the CPU.
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

Why do you close this report? @Admin

This is a really serious bug ! Is there any solution?
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

If you need a server to test, I can allocate an test instance for you. You can contact me by my register mail, and I will allocate an C5 instance in AWS for you.
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

I found the other report : https://techreport.com/forums/viewtopic.php?t=121397
Looks like the same problem.

Intel Xeon(Skylake) Platinum 、intel Xeon(skylake)Gold CPU .
Admin
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Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by Admin »

Unfortunately we have no idea what happens in c5 series instance of AWS.
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

1) My client asked to run my program on c5 series 's machine, which is a very urgent question
2) This is sure to be a bug in VMProtect, the source code is there for you, why not help debugging it?
I am a paying user, it is your responsibility to solve such bugs, and if you need the environment I can provide.
Looking forward to your reply
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

In addition, my program protected by upx can run on c5 series instance of AWS.
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Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by Admin »

Could we connect to such instance with remote debugger?
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

Please send an email to supermilg@qq.com with your email. I will send you the SSH login private key of the machine, and then you can operate the machine at will.
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

I haven't received your email so far. so, what happened?
supermilg
Posts: 28
Joined: Sat Oct 21, 2017 3:46 pm

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Post by supermilg »

An email including ssh key has sent to you. Check. Thank you!
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