OSV-2020-1260 Negative-size-param in heif::HeifPixelImage::fill_RGB_16bit

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13563 Crash type: Negative-size-param Crash state: heif::HeifPixelImage::fillRGB16bit heif::HeifContext::decodeoverlayimage heif::HeifContext::decodeimage...

imagemagick/encoder_heic_fuzzer: Use-of-uninitialized-value in heif::HeifContext::decode_overlay_image

Project: https://github.com/imagemagick/imagemagick.git Detailed report: https://oss-fuzz.com/testcase?key=5171925214035968 Project: imagemagick Fuzzer: libFuzzerimagemagickencoderheicfuzzer Fuzz target binary: encoderheicfuzzer Job Type: libfuzzermsanimagemagick Platform Id: linux Crash Type:...