- The patched binary won’t run?
A. Because we modified the dynamic loader(ld) from libc, the patched binary will not run normally unless for fuzzing with PTrix.
- How to fuzz a shared library?
A. Since we configure iPT to only trace the .text section of the fuzzed binary, if you need to fuzz a shared library please statically link to library into your harness binary.
- Can I run PTrix in a VM or Docker container?
A. Short answer is no. The current virtualization tools don't support virtualizing iPT yet, lets wait for the updates from Xen and Hyper-V, they should be out soon. As for Docker, we didn't test, but if your container host is Ubuntu 14.04 and the docker image is 14.04 too it might work.
- How to check whether Intel PT is support in your envrionment?
A. grep intel_pt /proc/cpuinfo or run reinstall_ptmod.sh