libarchive: Heap-buffer-overflow in archive_mstring_copy_mbs

Project: https://github.com/libarchive/libarchive.git Detailed report: https://clusterfuzz-external.appspot.com/testcase?key=6462609050042368 Project: libarchive Fuzzer: libFuzzerlibarchivefuzzer Fuzz target binary: libarchivefuzzer Job Type: libfuzzerasanlibarchive Platform Id: linux Crash Type:...