OpenEXR ScanLineProcess::run_fill NULL Pointer Write In "reduceMemory" Mode

SummaryWhen reading a deep scanline image with a large sample count in reduceMemory mode, it is possible to crash a target application with a NULL pointer dereference in a write operation. DetailsIn the ScanLineProcess::runfillfunction, implemented in src/lib/OpenEXR/ImfDeepScanLineInputFile.cpp,...