kc3-lang/harfbuzz/test/fuzzing

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  • Hash : a89c36e0
    Author : Behdad Esfahbod
    Date : 2025-09-02T13:05:11 

    [GPOS/kerx] Support attaching marks to bases after them (#5520)

See comments. Fuzzer found. I'm surprised this was not discovered
before though. I hope I have not missed anything.

Fixes https://oss-fuzz.com/testcase-detail/6399443634290688

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  • Git HTTP https://git.kmx.io/kc3-lang/harfbuzz.git
    Git SSH git@git.kmx.io:kc3-lang/harfbuzz.git
    Public access ? public
    Description

    HarfBuzz text shaping engine
    Users
    		 thodg_m kc3_lang_org thodg_w www_kmx_io thodg_l thodg
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  • README.md

  • To build the fuzzers with libFuzzer to perform actual fuzzing, build with:

    CXX=clang++ CXXFLAGS="-fsanitize=address,fuzzer-no-link" meson fuzzbuild --default-library=static -Dfuzzer_ldflags="-fsanitize=address,fuzzer"

ninja -Cfuzzbuild

    Then, run the fuzzer like this:

    fuzzbuild/test/fuzzing/hb-{shape,draw,subset,set}-fuzzer [-max_len=2048] [CORPUS_DIR]

    Where max_len specifies the maximal length of font files to handle. The smaller the faster.

    For more details consult the following locations:

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