Project: freetype2

Language c++
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 33
Lines of code 104421
Lines covered 67198
Code coverage 64.35%
Code coverage report Report link
Static reachability 11.24%
Fuzz Introspector report Report link (from 2025-03-27)
Fuzzer Code coverage (lines) Latest Report Comments
bdf 26.41% (avg: 26.42%, max: 26.43%) 2025-03-27
bdf-render 26.29% (avg: 26.29%, max: 26.3%) 2025-03-27
bzip2 1.63% (avg: 1.63%, max: 1.63%) 2025-03-27
cff 33.76% (avg: 34.06%, max: 34.18%) 2025-03-27
cff-ftengine 31.38% (avg: 31.6%, max: 31.66%) 2025-03-27
cff-render 38.74% (avg: 38.79%, max: 38.88%) 2025-03-27
cff-render-ftengine 37.92% (avg: 38.03%, max: 38.14%) 2025-03-27
cidtype1 26.6% (avg: 26.75%, max: 26.77%) 2025-03-27
cidtype1-ftengine 26.51% (avg: 26.72%, max: 26.77%) 2025-03-27
cidtype1-render 34.29% (avg: 34.35%, max: 34.47%) 2025-03-27
cidtype1-render-ftengine 32.84% (avg: 32.87%, max: 32.9%) 2025-03-27
colrv1 26.65% (avg: 26.88%, max: 27.0%) 2025-03-27
ftfuzzer 55.0% (avg: 54.54%, max: 55.0%) 2025-03-27
glyphs-bitmaps-pcf 27.41% (avg: 27.78%, max: 27.82%) 2025-03-27
glyphs-outlines 26.25% (avg: 26.28%, max: 27.03%) 2025-03-27
gzip 2.08% (avg: 2.09%, max: 2.09%) 2025-03-27
lzw 1.16% (avg: 1.16%, max: 1.16%) 2025-03-27
pcf 26.79% (avg: 27.07%, max: 27.13%) 2025-03-27
pcf-render 27.06% (avg: 27.2%, max: 27.22%) 2025-03-27
truetype 34.68% (avg: 34.97%, max: 35.02%) 2025-03-27
truetype-render 23.1% (avg: 25.41%, max: 27.03%) 2025-03-27
truetype-render-i35 41.93% (avg: 42.01%, max: 42.06%) 2025-03-27
type1 31.63% (avg: 31.6%, max: 31.74%) 2025-03-27
type1-ftengine 28.01% (avg: 28.29%, max: 28.32%) 2025-03-27
type1-render 37.26% (avg: 37.46%, max: 37.5%) 2025-03-27
type1-render-ftengine 35.5% (avg: 35.52%, max: 35.59%) 2025-03-27
type1-render-tar 31.95% (avg: 31.62%, max: 31.68%) 2025-03-27
type1-tar 26.6% (avg: 26.68%, max: 26.78%) 2025-03-27
type42 28.25% (avg: 28.37%, max: 28.39%) 2025-03-27
type42-render 38.14% (avg: 38.13%, max: 38.16%) 2025-03-27
windowsfnt 26.42% (avg: 26.54%, max: 26.57%) 2025-03-27
windowsfnt-render 26.31% (avg: 26.43%, max: 26.46%) 2025-03-27

Historical Progression

Per Fuzzer Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
OSS_FUZZ_png_read_png /src/freetype2-testing/external/libpng/build/../pngread.c 2326 0.0%
OSS_FUZZ_png_image_finish_read /src/freetype2-testing/external/libpng/build/../pngread.c 1798 0.0%
demangling_terminate_handler() /src/freetype2-testing/external/llvm-project/libcxxabi/src/cxa_default_handlers.cpp 1645 0.0%
png_image_read_direct /src/freetype2-testing/external/libpng/build/../pngread.c 1609 0.0%
__cxa_demangle /src/freetype2-testing/external/llvm-project/libcxxabi/src/cxa_demangle.cpp 1597 0.0%
(anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::parse() /src/freetype2-testing/external/llvm-project/libcxxabi/src/demangle/ItaniumDemangle.h 1541 0.0%
(anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::parseClassEnumType() /src/freetype2-testing/external/llvm-project/libcxxabi/src/demangle/ItaniumDemangle.h 1519 0.0%
(anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::parseName((anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::NameState*) /src/freetype2-testing/external/llvm-project/libcxxabi/src/demangle/ItaniumDemangle.h 1519 0.0%
(anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::parseNestedName((anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::NameState*) /src/freetype2-testing/external/llvm-project/libcxxabi/src/demangle/ItaniumDemangle.h 1519 0.0%
(anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::parseLocalName((anonymousnamespace)::itanium_demangle::AbstractManglingParser<(anonymousnamespace)::itanium_demangle::ManglingParser<(anonymousnamespace)::DefaultAllocator>,(anonymousnamespace)::DefaultAllocator>::NameState*) /src/freetype2-testing/external/llvm-project/libcxxabi/src/demangle/ItaniumDemangle.h 1519 0.0%