OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19386
Crash type: Stack-buffer-overflow WRITE {*}
Crash state:
ot::MeshCoP::Commissioner::GeneratePskc
ot::Ncp::NcpBase::HandlePropertySet_SPINEL_PROP_MESHCOP_COMMISSIONER_GENERATE_PS
ot::Ncp::NcpBase::HandlePropertySetForSpecialProperties