Fuzz introspector: zxc_fuzzer_decompress
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
3 5 zxc_decompress call site: 00005 zxc_decompress_frame
3 31 zxc_decompress_frame call site: 00031 zxc_huf_dict_tree_build
3 35 zxc_pivco_tree_build call site: 00035 zxc_cctx_free
1 9 zxc_decompress_frame call site: 00009 zxc_dict_id
1 18 zxc_decompress_frame call site: 00018 zxc_read_block_header
1 20 zxc_decompress_frame call site: 00020 zxc_cctx_free
1 24 zxc_cctx_init call site: 00024 zxc_dctx_entropy_sizes
1 29 zxc_cctx_init_in_workspace call site: 00029 zxc_aligned_free

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 zxc_get_decompressed_size [function] [call site] 00001
2 zxc_read_frame_envelope [function] [call site] 00002
3 zxc_read_file_header [function] [call site] 00003
1 zxc_decompress [function] [call site] 00004
2 zxc_probe_without_dst [function] [call site] 00005
3 zxc_probe_reject_payload [function] [call site] 00006
4 zxc_read_frame_envelope [function] [call site] 00007
3 zxc_decompress_frame [function] [call site] 00008
4 zxc_read_file_header [function] [call site] 00009
4 zxc_dict_id [function] [call site] 00010
4 zxc_cctx_free [function] [call site] 00011
5 zxc_aligned_free [function] [call site] 00012
5 zxc_aligned_free [function] [call site] 00013
4 zxc_read_block_header [function] [call site] 00014
4 zxc_cctx_free [function] [call site] 00015
4 zxc_cctx_free [function] [call site] 00016
4 zxc_cctx_free [function] [call site] 00017
4 zxc_cctx_free [function] [call site] 00018
4 zxc_read_block_header [function] [call site] 00019
4 zxc_cctx_free [function] [call site] 00020
4 zxc_cctx_free [function] [call site] 00021
4 zxc_cctx_free [function] [call site] 00022
4 zxc_cctx_init [function] [call site] 00023
5 compute_cctx_layout [function] [call site] 00024
6 zxc_dctx_entropy_sizes [function] [call site] 00025
5 zxc_aligned_malloc [function] [call site] 00026
6 posix_memalign [call site] 00027
5 zxc_cctx_init_in_workspace [function] [call site] 00028
6 compute_cctx_layout [function] [call site] 00029
5 zxc_aligned_free [function] [call site] 00030
4 zxc_cctx_attach_dict_huf [function] [call site] 00031
5 zxc_huf_dict_tree_build [function] [call site] 00032
6 zxc_huf_unpack_lengths_default [function] [call site] 00033
6 zxc_pivco_tree_build [function] [call site] 00034
7 zxc_pivco_bitrev_permute [function] [call site] 00035
6 zxc_pivco_codes [function] [call site] 00036
4 zxc_cctx_free [function] [call site] 00037
4 zxc_decompress_chunk_wrapper [function] [call site] 00038
4 zxc_decompress_chunk_wrapper [function] [call site] 00039
4 zxc_decompress_chunk_wrapper [function] [call site] 00040
4 zxc_cctx_free [function] [call site] 00041
4 zxc_cctx_free [function] [call site] 00042
4 zxc_cctx_free [function] [call site] 00043
2 zxc_decompress_frame [function] [call site] 00044