graphicsmagick/coder_DPX_fuzzer: Use-of-uninitialized-value in WriteDPXImage

Project:
http://hg.code.sf.net/p/graphicsmagick/code

Detailed report: https://oss-fuzz.com/testcase?key=4986470885490688

Project: graphicsmagick
Fuzzer: libFuzzer_graphicsmagick_coder_DPX_fuzzer
Fuzz target binary: coder_DPX_fuzzer
Job Type: libfuzzer_msan_graphicsmagick
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address:
Crash State:
WriteDPXImage
WriteImage
ImageToBlob

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4986470885490688

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for more information.

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