OSV-2020-1463 Segv on unknown address in llvm::detail::IEEEFloat::roundSignificandWithExponent

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19171 Crash type: Segv on unknown address Crash state: llvm::detail::IEEEFloat::roundSignificandWithExponent llvm::detail::IEEEFloat::convertFromDecimalString llvm::detail::IEEEFloat::convertFromString...

llvm:clang-fuzzer: Segv on unknown address in llvm::detail::IEEEFloat::roundSignificandWithExponent

Detailed Report: https://oss-fuzz.com/testcase?key=5706795951849472 Project: llvm Fuzzing Engine: libFuzzer Fuzz Target: clang-fuzzer Job Type: libfuzzermsanllvm Platform Id: linux Crash Type: Segv on unknown address Crash Address: Crash State: llvm::detail::IEEEFloat::roundSignificandWithExponen...