Fix potential vulnerable cloned function #475
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…for reading multipart files with no parts
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Hi again,
I identified another potential vulnerability in a clone function MultiPartInputFile::initialize() in
libraries/openexr/IlmImf/ImfMultiPartInputFile.cppsourced from AcademySoftwareFoundation/openexr. This issue, originally reported in CVE-2021-20299, was resolved in the repository via this commit AcademySoftwareFoundation/openexr@25e9515.This PR applies the corresponding patch to fix the potential null pointer dereference in this codebase.
Please review at your convenience. Thank you!