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Currently I develop a custom fuzzer based on LibFuzzer using DynamoRIO for coverage extantion. Before this bug used Fedora Linux system 38-39. This Summer I moved to the Kubuntu and tried to run my project there, but I faced the bug.
My client just cannot start and crashed before any commands in main function.
I run my program under the GDB and here is the result:
on Fedora 40 and Kubuntu 24.04.1 where it does not works.
As well as with command
./DynamoRIO_Linux_10/bin64/drrun -c ./bin/libclient.so -- ls
Without client it works fine:
./DynamoRIO_Linux_10/bin64/drrun ./bin/fuzz_app
or
./DynamoRIO_Linux_10/bin64/drrun ls
There is no difference when I run client with debug option.
So I guess it's only DR client running problem. As I discovered some bad things happening when DR tries to handle the threads to tun client.
Expected behavior
here is a screenshot of correct fuzzer work:
Versions
I use the latest release of DynamoRIO from here https://dynamorio.org/page_releases.html
I work on such systems:
Fedora 40 (in container)
Kubuntu 24.04.1 (main system)
The text was updated successfully, but these errors were encountered:
As for the floating-point fault, that is almost certainly due to recent glibc bad designs with hidden dependencies: #5437. Probably the latest weekly build at /~https://github.com/DynamoRIO/dynamorio/releases fixes it; if not please update #5437.
Often it is a good idea to first ask questions on the users list.
Thanks. I've seen this issue before asked this question, but I guessed, that my problem was not related to this question closely enough. I also apologize, if this issue seems garbagelike)
Describe the bug
Currently I develop a custom fuzzer based on LibFuzzer using DynamoRIO for coverage extantion. Before this bug used Fedora Linux system 38-39. This Summer I moved to the Kubuntu and tried to run my project there, but I faced the bug.

My client just cannot start and crashed before any commands in main function.
I run my program under the GDB and here is the result:

To Reproduce
I run command
on Fedora 40 and Kubuntu 24.04.1 where it does not works.
As well as with command
Without client it works fine:
or
There is no difference when I run client with debug option.
So I guess it's only DR client running problem. As I discovered some bad things happening when DR tries to handle the threads to tun client.
Expected behavior
here is a screenshot of correct fuzzer work:

Versions
I use the latest release of DynamoRIO from here https://dynamorio.org/page_releases.html


I work on such systems:
Fedora 40 (in container)
Kubuntu 24.04.1 (main system)
The text was updated successfully, but these errors were encountered: