OSV-2017-114 Use-of-uninitialized-value in __gxx_personality_v0

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=4310 Crash type: Use-of-uninitialized-value Crash state: gxxpersonalityv0 UnwindRaiseException ErrorHandler::Throw...