OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20321
Crash type: Global-buffer-overflow READ 1
Crash state:
hb_array_t<OT::IntType<unsigned char, 1u> const> hb_array_t<OT::IntType<unsigned
OT::UnsizedArrayOf<OT::IntType<unsigned char, 1u> >::copy
OT::SBIXGlyph::copy