[panda-users] Question for file_taint

[Andrew Fasano]

Have you tried apt install libz3-dev? Perhaps the install_ubuntu.sh script
missed that one for some reason.

If you run `ldd
/home/duo/qemu/panda/build/x86_64-softmmu/panda/plugins/panda_taint2.so`
you'll see all the libraries that shared object is trying to load, on my
system I have libz3.so.4 => /lib/x86_64-linux-gnu/libz3.so.4 which provides
the symbol you're missing. That's the library you'll need to install.

If that doesn't help, please open an issue
<https://github.com/panda-re/panda/issues/new/choose> on our Github and
provide some additional details about what os/version you're running and
how you installed panda.
Or you can just use our docker container which has PANDA set up and ready
to use: https://hub.docker.com/r/pandare/panda.

Andrew

On Mon, Jul 19, 2021 at 11:56 AM Duo Zhang <duozhang at iastate.edu> wrote:

> Hi Andrew,
>
> Thanks for your replay. I tried install_ubuntu.sh script to install panda,
> and also success. However, the error still persists when I use the
> file_taint. My experiment is based on this one:
> https://github.com/panda-re/panda/issues/607
>
> Thanks,
> Duo
>
> On Mon, Jul 19, 2021 at 8:52 AM Andrew Fasano <fasano at mit.edu> wrote:
>
>> Hi Duo,
>>
>> It looks like you're missing a library for the Z3 SAT solver used by the
>> taint plugin. I suspect the missing package is libz3-dev - can you try
>> installing that from apt if you don't have it already?
>>
>> If you're using Ubuntu, did you set up PANDA with our install_ubuntu.sh
>> script? If so, that should have automatically set up all the dependencies
>> for you (by installing the packages listed in the panda/dependencies/[os
>> name:version]_*.txt files). If you used the install script and still ran
>> into this issue we might have a bug in that script that we should fix.
>>
>> Cheers,
>> Andrew
>>
>> On Thu, Jul 15, 2021 at 4:06 PM Duo Zhang <duozhang at iastate.edu> wrote:
>>
>>> Hello developers,
>>>
>>> I tried the latest version of PANDA with the file_taint plugin but it
>>> failed with the image you provided online. I list the error information
>>> below:
>>>
>>> ./x86_64-softmmu/panda-system-x86_64 -m 4G
>>> /home/duo/bionic-server-cloudimg-amd64-noaslr-nokaslr.qcow2 -replay foo1
>>> -os linux-64-ubuntu:my_info -panda file_taint:filename=test.sh
>>> PANDA[core]:os_familyno=2 bits=64 os_details=ubuntu:my_info
>>> PANDA[file_taint]:adding argument filename=test.sh.
>>> PANDA[core]:initializing file_taint
>>> PANDA[core]:loading required plugin syscalls2
>>> PANDA[core]:initializing syscalls2
>>> PANDA[syscalls2]:using profile for linux x64 64-bit
>>> PANDA[core]:loading required plugin hooks
>>> PANDA[core]:initializing hooks
>>> PANDA[core]:loading required plugin osi
>>> PANDA[core]:initializing osi
>>> PANDA[core]:loading required plugin osi_linux
>>> PANDA[core]:initializing osi_linux
>>> PANDA[osi_linux]:W> failed to read task.start_time_offset
>>> PANDA[osi_linux]:W> failed to read task.switch_task_hook_addr
>>> PANDA[osi_linux]:W> kernelinfo bytes [20-23] not read
>>> PANDA[core]:loading required plugin syscalls2
>>> PANDA[core]:/home/duo/qemu/panda/build/x86_64-softmmu/panda/plugins/panda_syscalls2.so
>>> already loaded
>>> PANDA[core]:loading required plugin taint2
>>> Failed to load
>>> /home/duo/qemu/panda/build/x86_64-softmmu/panda/plugins/panda_taint2.so:
>>> /home/duo/qemu/panda/build/x86_64-softmmu/panda/plugins/panda_taint2.so:
>>> undefined symbol: Z3_mk_seq_concat
>>> PANDA[core]:FAILED to load required plugin taint2 from
>>> /home/duo/qemu/panda/build/x86_64-softmmu/panda/plugins/panda_taint2.so
>>> Aborted (core dumped)
>>>
>>> Can anyone help me solve the problem?
>>>
>>> Thanks,
>>> Duo
>>> _______________________________________________
>>> panda-users mailing list
>>> panda-users at mit.edu
>>> http://mailman.mit.edu/mailman/listinfo/panda-users
>>>
>>
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