OSV-2020-2074 UNKNOWN READ in WelsDec::WelsMarkAsRef

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26356 Crash type: UNKNOWN READ Crash state: WelsDec::WelsMarkAsRef WelsDec::MarkECFrameAsRef WelsDec::CheckAndFinishLastPic...

openh264:decoder_fuzzer: Crash in WelsDec::WelsMarkAsRef

Project: https://github.com/cisco/openh264.git Detailed Report: https://oss-fuzz.com/testcase?key=5731532414910464 Project: openh264 Fuzzing Engine: libFuzzer Fuzz Target: decoderfuzzer Job Type: libfuzzerasanopenh264 Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x7f0ac8de0c30 Crash...