The Deep Scanline Input code has recently been rewritten to make use of the EXR core library. As a result a bug was introduced when using the overloads of readPixels() and readPixelSampleCounts() that use externally provided framebuffers as parameters and a hard crash is occuring. According to the comment on the header of these functions, when these overloads are used the InputFile's frameBuffer is not used.

However both these functions call into readMemData(), which does use the InputFile's member framebuffer, which has not been allocated, resulting into a segmentation fault.

I have raised a pull request that I believe fixes this issue: #2019