Instrumented binary segfaults upon writing env var info

trailofbits / polytracker

An LLVM-based instrumentation tool for universal taint tracking, dataflow analysis, and tracing.

Apache License 2.0

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Instrumented binary segfaults upon writing env var info #6480

Closed surovic closed 2 years ago

surovic commented 2 years ago

If POLYTRACKER_STDOUT_SINK or POLYTRACKER_STDERR_SINK env var is not set the instrumented binary does a nullptr dereference here because of this.