Fuzz introspector
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues
Project coverage
Per-fuzzer coverage

Table of contents

Project overview: c-blosc
High level conclusions
Reachability and coverage overview
Fuzzers overview
Project functions overview
Fuzzer details
Fuzzer: decompress_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: compress_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Analyses and suggestions
Optimal target analysis
Remaining optimal interesting functions
All functions overview
Fuzz engine guidance
tests/fuzz/fuzz_decompress.c
Dictionary
Fuzzer function priority
tests/fuzz/fuzz_compress.c
Dictionary
Fuzzer function priority
Runtime coverage analysis
Complex functions with low coverage
Files and Directories in report
Files in report
Directories in report
Metadata section
Sink analyser for CWEs
Report generation date: 2024-05-21

Project overview: c-blosc

High level conclusions

Reachability and coverage overview

Functions statically reachable by fuzzers
39.0%
484 / 1237
Cyclomatic complexity statically reachable by fuzzers
30.0%
4719 / 15679
Runtime code coverage of functions
43.0%
531 / 1237

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

Fuzzers overview

Fuzzer Fuzzer filename Functions Reached Functions unreached Fuzzer depth Files reached Basic blocks reached Cyclomatic complexity Details
decompress_fuzzer tests/fuzz/fuzz_decompress.c 497 775 27 43 11118 4661 fuzz_decompress.c
compress_fuzzer tests/fuzz/fuzz_compress.c 509 763 27 43 11400 4777 fuzz_compress.c

Project functions overview

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name Functions filename Args Function call depth Reached by Fuzzers Fuzzers runtime hit Func lines hit % I Count BB Count Cyclomatic complexity Functions reached Reached by functions Accumulated cyclomatic complexity Undiscovered complexity

Fuzzer details

Fuzzer: decompress_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 968 89.5%
gold [1:9] 9 0.83%
yellow [10:29] 0 0.0%
greenyellow [30:49] 0 0.0%
lawngreen 50+ 104 9.62%
All colors 1081 100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
4575 4575 1 :

['parallel_blosc']

4575 4575 do_job call site: 00043 /src/c-blosc/blosc/blosc.c:913
468 468 2 :

['ZSTD_getOffsetInfo', 'ZSTD_decompressSequencesLong']

468 977 ZSTD_decompressBlock_internal call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_decompress_block.c:2143
372 767 6 :

['crc32', 'adler32', 'inflate_table', 'updatewindow', 'inflate_fast', 'fixedtables']

372 767 inflate call site: 00000 /src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c:817
0 0 None 4626 9243 blosc_decompress call site: 00018 /src/c-blosc/blosc/blosc.c:1537
0 0 None 4455 4658 serial_blosc call site: 00045 /src/c-blosc/blosc/blosc.c:818
0 0 None 4455 4658 serial_blosc call site: 00046 /src/c-blosc/blosc/blosc.c:827
0 0 None 372 767 inflate call site: 00000 /src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c:623
0 0 None 372 767 inflate call site: 00000 /src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c:629
0 0 None 372 767 inflate call site: 00000 /src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c:638
0 0 None 372 767 inflate call site: 00000 /src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c:656
0 0 None 372 767 inflate call site: 00000 /src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c:1137
0 0 None 372 767 inflate call site: 00000 /src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c:1138

Runtime coverage analysis

Covered functions
250
Functions that are reachable but not covered
419
Reachable functions
497
Percentage of reachable functions covered
15.69%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
tests/fuzz/fuzz_decompress.c 1
blosc/blosc.c 29
blosc/fastcopy.c 14
blosc/shuffle.c 8
blosc/blosclz.c 5
internal-complibs/lz4-1.9.4/lz4.c 8
internal-complibs/lz4-1.9.4/lz4hc.c 14
internal-complibs/zlib-1.3.1/compress.c 1
internal-complibs/zlib-1.3.1/deflate.c 16
internal-complibs/zlib-1.3.1/crc32.c 3
internal-complibs/zlib-1.3.1/adler32.c 2
internal-complibs/zlib-1.3.1/trees.c 19
internal-complibs/zstd-1.5.6/compress/zstd_compress.c 106
internal-complibs/zstd-1.5.6/compress/../common/zstd_internal.h 3
internal-complibs/zstd-1.5.6/compress/../common/cpu.h 2
internal-complibs/zstd-1.5.6/compress/../common/allocations.h 2
internal-complibs/zstd-1.5.6/compress/zstd_cwksp.h 28
internal-complibs/zstd-1.5.6/compress/../common/bits.h 5
internal-complibs/zstd-1.5.6/compress/zstd_ldm.c 20
internal-complibs/zstd-1.5.6/compress/zstd_compress_internal.h 33
internal-complibs/zstd-1.5.6/compress/../common/error_private.h 1
internal-complibs/zstd-1.5.6/common/xxhash.h 9
internal-complibs/zstd-1.5.6/compress/zstd_fast.c 3
internal-complibs/zstd-1.5.6/compress/zstd_double_fast.c 3
internal-complibs/zstd-1.5.6/compress/zstd_lazy.c 3
internal-complibs/zstd-1.5.6/compress/zstd_opt.c 2
internal-complibs/zstd-1.5.6/compress/huf_compress.c 29
internal-complibs/zstd-1.5.6/common/entropy_common.c 9
internal-complibs/zstd-1.5.6/common/fse_decompress.c 4
internal-complibs/zstd-1.5.6/common/bits.h 3
internal-complibs/zstd-1.5.6/common/error_private.h 1
internal-complibs/zstd-1.5.6/common/mem.h 1
internal-complibs/zstd-1.5.6/common/bitstream.h 2
internal-complibs/zstd-1.5.6/common/fse.h 1
internal-complibs/zstd-1.5.6/compress/fse_compress.c 11
internal-complibs/zstd-1.5.6/compress/../common/mem.h 8
internal-complibs/zstd-1.5.6/compress/zstd_compress_superblock.c 13
internal-complibs/zstd-1.5.6/compress/hist.c 4
internal-complibs/zstd-1.5.6/compress/zstd_compress_sequences.c 11
internal-complibs/zstd-1.5.6/compress/../common/fse.h 3
internal-complibs/zstd-1.5.6/compress/zstd_compress_literals.c 5
internal-complibs/zstd-1.5.6/compress/../common/bitstream.h 1
internal-complibs/zstd-1.5.6/common/zstd_common.c 1

Fuzzer: compress_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 606 52.9%
gold [1:9] 9 0.78%
yellow [10:29] 2 0.17%
greenyellow [30:49] 13 1.13%
lawngreen 50+ 515 44.9%
All colors 1145 100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
4575 4575 1 :

['parallel_blosc']

4575 4575 do_job call site: 00083 /src/c-blosc/blosc/blosc.c:913
1366 1368 3 :

['ZSTD_loadZstdDictionary', 'ZSTD_loadDictionaryContent', 'ZSTD_reset_compressedBlockState']

1366 1368 ZSTD_compress_insertDictionary call site: 00471 /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_compress.c:5081
1231 1231 1 :

['LZ4HC_compress_generic_dictCtx']

1231 1231 LZ4HC_compress_generic call site: 00174 /src/c-blosc/internal-complibs/lz4-1.9.4/lz4hc.c:917
671 671 2 :

['HUF_decompress4X_usingDTable', 'HUF_decompress1X_usingDTable']

671 671 ZSTD_decodeLiteralsBlock call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_decompress_block.c:200
468 468 2 :

['ZSTD_getOffsetInfo', 'ZSTD_decompressSequencesLong']

803 977 ZSTD_decompressBlock_internal call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_decompress_block.c:2143
335 335 1 :

['ZSTD_decompressSequencesSplitLitBuffer']

335 335 ZSTD_decompressBlock_internal call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_decompress_block.c:2174
332 332 4 :

['ZSTD_compressBlock_fast_noDict_4_1', 'ZSTD_compressBlock_fast_noDict_6_1', 'ZSTD_compressBlock_fast_noDict_7_1', 'ZSTD_compressBlock_fast_noDict_5_1']

332 332 ZSTD_compressBlock_fast call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_fast.c:433
288 288 2 :

['ZSTD_ldm_blockCompress', 'ZSTD_ldm_generateSequences']

288 292 ZSTD_buildSeqStore call site: 00656 /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_compress.c:3264
100 100 1 :

['ZSTD_compressBlock_doubleFast_noDict_6']

100 100 ZSTD_compressBlock_doubleFast call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_double_fast.c:565
100 100 1 :

['ZSTD_compressBlock_doubleFast_noDict_7']

100 100 ZSTD_compressBlock_doubleFast call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_double_fast.c:565
83 83 1 :

['ZSTD_compressBlock_fast_noDict_4_0']

83 83 ZSTD_compressBlock_fast call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_fast.c:447
83 83 1 :

['ZSTD_compressBlock_fast_noDict_7_0']

83 83 ZSTD_compressBlock_fast call site: 00000 /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_fast.c:447

Runtime coverage analysis

Covered functions
589
Functions that are reachable but not covered
169
Reachable functions
509
Percentage of reachable functions covered
66.8%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
tests/fuzz/fuzz_compress.c 1
blosc/blosc.c 40
blosc/fastcopy.c 14
blosc/shuffle.c 8
blosc/blosclz.c 5
internal-complibs/lz4-1.9.4/lz4.c 8
internal-complibs/lz4-1.9.4/lz4hc.c 14
internal-complibs/zlib-1.3.1/compress.c 1
internal-complibs/zlib-1.3.1/deflate.c 16
internal-complibs/zlib-1.3.1/crc32.c 3
internal-complibs/zlib-1.3.1/adler32.c 2
internal-complibs/zlib-1.3.1/trees.c 19
internal-complibs/zstd-1.5.6/compress/zstd_compress.c 106
internal-complibs/zstd-1.5.6/compress/../common/zstd_internal.h 3
internal-complibs/zstd-1.5.6/compress/../common/cpu.h 2
internal-complibs/zstd-1.5.6/compress/../common/allocations.h 2
internal-complibs/zstd-1.5.6/compress/zstd_cwksp.h 28
internal-complibs/zstd-1.5.6/compress/../common/bits.h 5
internal-complibs/zstd-1.5.6/compress/zstd_ldm.c 20
internal-complibs/zstd-1.5.6/compress/zstd_compress_internal.h 33
internal-complibs/zstd-1.5.6/compress/../common/error_private.h 1
internal-complibs/zstd-1.5.6/common/xxhash.h 9
internal-complibs/zstd-1.5.6/compress/zstd_fast.c 3
internal-complibs/zstd-1.5.6/compress/zstd_double_fast.c 3
internal-complibs/zstd-1.5.6/compress/zstd_lazy.c 3
internal-complibs/zstd-1.5.6/compress/zstd_opt.c 2
internal-complibs/zstd-1.5.6/compress/huf_compress.c 29
internal-complibs/zstd-1.5.6/common/entropy_common.c 9
internal-complibs/zstd-1.5.6/common/fse_decompress.c 4
internal-complibs/zstd-1.5.6/common/bits.h 3
internal-complibs/zstd-1.5.6/common/error_private.h 1
internal-complibs/zstd-1.5.6/common/mem.h 1
internal-complibs/zstd-1.5.6/common/bitstream.h 2
internal-complibs/zstd-1.5.6/common/fse.h 1
internal-complibs/zstd-1.5.6/compress/fse_compress.c 11
internal-complibs/zstd-1.5.6/compress/../common/mem.h 8
internal-complibs/zstd-1.5.6/compress/zstd_compress_superblock.c 13
internal-complibs/zstd-1.5.6/compress/hist.c 4
internal-complibs/zstd-1.5.6/compress/zstd_compress_sequences.c 11
internal-complibs/zstd-1.5.6/compress/../common/fse.h 3
internal-complibs/zstd-1.5.6/compress/zstd_compress_literals.c 5
internal-complibs/zstd-1.5.6/compress/../common/bitstream.h 1
internal-complibs/zstd-1.5.6/common/zstd_common.c 1

Analyses and suggestions

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name Functions filename Arg count Args Function depth hitcount instr count bb count cyclomatic complexity Reachable functions Incoming references total cyclomatic complexity Unreached complexity
ZSTD_decompressStream_simpleArgs /src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_decompress.c 7 ['N/A', 'N/A', 'size_t', 'N/A', 'N/A', 'size_t', 'N/A'] 15 0 44 3 2 162 0 2295 1984
LZ4_decompress_safe_continue /src/c-blosc/internal-complibs/lz4-1.9.4/lz4.c 5 ['N/A', 'N/A', 'N/A', 'int', 'int'] 2 0 1904 316 125 5 0 525 523
zlib_wrap_decompress /src/c-blosc/blosc/blosc.c 4 ['N/A', 'int', 'N/A', 'int'] 8 0 40 6 3 19 0 530 474
ZSTD_compressBlock_lazy2_dedicatedDictSearch_row /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_lazy.c 5 ['N/A', 'N/A', 'N/A', 'N/A', 'size_t'] 5 0 1772 256 43 30 0 527 463
LZ4_decompress_safe_partial_usingDict /src/c-blosc/internal-complibs/lz4-1.9.4/lz4.c 7 ['N/A', 'N/A', 'int', 'int', 'int', 'N/A', 'int'] 2 0 49 10 5 5 0 399 397
ZSTD_compressBlock_fast_extDict /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_fast.c 5 ['N/A', 'N/A', 'N/A', 'N/A', 'size_t'] 6 0 43 8 9 32 0 459 396
LZ4_compress_continue /src/c-blosc/internal-complibs/lz4-1.9.4/lz4.c 4 ['N/A', 'N/A', 'N/A', 'int'] 3 0 17 3 2 7 0 389 379
ZSTD_compressBlock_lazy2_dictMatchState_row /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_lazy.c 5 ['N/A', 'N/A', 'N/A', 'N/A', 'size_t'] 5 0 1770 256 43 30 0 446 376
ZSTD_compressBlock_lazy2_extDict_row /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_lazy.c 5 ['N/A', 'N/A', 'N/A', 'N/A', 'size_t'] 5 0 1772 260 45 28 0 391 324
ZSTD_compressBlock_doubleFast_extDict /src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_double_fast.c 5 ['N/A', 'N/A', 'N/A', 'N/A', 'size_t'] 6 0 43 8 9 28 0 358 292

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers
56.0%
691 / 1237
Cyclomatic complexity statically reachable by fuzzers
66.0%
10323 / 15679

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name Functions filename Args Function call depth Reached by Fuzzers Fuzzers runtime hit Func lines hit % I Count BB Count Cyclomatic complexity Functions reached Reached by functions Accumulated cyclomatic complexity Undiscovered complexity

Fuzz engine guidance

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

tests/fuzz/fuzz_decompress.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['ZSTD_XXH64_update', 'ZSTD_highbit32', 'blosc_get_cpu_features', 'adler32', 'HUF_readStats_body_bmi2', 'serial_blosc', 'blosc_decompress', 'ZSTD_cpuSupportsBmi2', 'FSE_initDState', 'chunk_memcpy']

tests/fuzz/fuzz_compress.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['serial_blosc', 'ZSTD_compress_frameChunk', 'ZSTD_safecopyLiterals', 'ZSTD_buildSequencesStatistics', 'FSE_initCState2', 'ZSTD_entropyCompressSeqStore', 'blosc_init', 'ZSTD_hash5Ptr', 'FSE_buildCTable_wksp', 'deflate']

Runtime coverage analysis

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name Function total lines Lines covered at runtime percentage covered Reached by fuzzers
copy_match 88 36 40.90% []
chunk_memcpy 57 21 36.84% ['decompress_fuzzer', 'compress_fuzzer']
get_shuffle_implementation 32 13 40.62% ['decompress_fuzzer', 'compress_fuzzer']
blosc_internal_bshuf_trans_byte_elem_sse2 44 7 15.90% []
blosc_compress 96 33 34.37% ['compress_fuzzer']
compute_blocksize 73 25 34.24% ['compress_fuzzer']
deflate 257 79 30.73% ['decompress_fuzzer', 'compress_fuzzer']
ZSTD_buildSeqStore 130 37 28.46% ['decompress_fuzzer', 'compress_fuzzer']
ZSTD_compressBlock_fast 31 14 45.16% []
ZSTD_opt_getNextMatchAndUpdateSeqStore 35 10 28.57% []
ZSTD_rescaleFreqs 97 49 50.51% []

Files and Directories in report

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file Reached by Covered by
[] []
/src/c-blosc/blosc/shuffle.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/../common/bitstream.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/blosc/shuffle-sse2.c [] []
/src/c-blosc/blosc/blosclz.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/compiler.h [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_fast.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_compress_sequences.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/blosc/shuffle-generic.h [] []
/src/c-blosc/blosc/bitshuffle-sse2.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/common/bitstream.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zlib-1.3.1/deflate.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/huf_decompress.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_compress_internal.h ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/bitstream.h [] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_opt.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zlib-1.3.1/inflate.c [] []
/src/c-blosc/blosc/blosc.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/../common/fse.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zlib-1.3.1/adler32.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zlib-1.3.1/zutil.c [] []
/src/c-blosc/internal-complibs/zlib-1.3.1/compress.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/cpu.h [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_ldm.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zlib-1.3.1/inftrees.c [] []
/src/c-blosc/blosc/bitshuffle-generic.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/fse_compress.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_ddict.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/../common/zstd_internal.h ['decompress_fuzzer', 'compress_fuzzer'] []
/src/c-blosc/internal-complibs/zlib-1.3.1/trees.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/blosc/fastcopy.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/common/fse.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zlib-1.3.1/inffast.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_decompress_block.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/allocations.h [] []
/src/c-blosc/internal-complibs/zlib-1.3.1/crc32.c ['decompress_fuzzer', 'compress_fuzzer'] []
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/mem.h [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_compress.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/huf_compress.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/zstd_decompress.c [] []
/src/c-blosc/internal-complibs/lz4-1.9.4/lz4.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/common/error_private.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_double_fast.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/common/entropy_common.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/lz4-1.9.4/lz4hc.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/../common/mem.h ['decompress_fuzzer', 'compress_fuzzer'] []
/src/c-blosc/blosc/bitshuffle-avx2.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/common/error_private.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/error_private.h [] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/hist.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/zstd_internal.h [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_lazy.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/blosc/shuffle-avx2.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/common/xxhash.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/blosc/shuffle-generic.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_compress_superblock.c ['decompress_fuzzer', 'compress_fuzzer'] []
/src/c-blosc/internal-complibs/zstd-1.5.6/common/bits.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_cwksp.h ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/zstd_compress_literals.c ['decompress_fuzzer', 'compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/common/zstd_common.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/bits.h [] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/tests/fuzz/fuzz_compress.c ['compress_fuzzer'] ['compress_fuzzer']
/src/c-blosc/internal-complibs/zlib-1.3.1/uncompr.c [] []
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/../common/bits.h ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/internal-complibs/zstd-1.5.6/common/fse_decompress.c ['decompress_fuzzer', 'compress_fuzzer'] ['decompress_fuzzer', 'compress_fuzzer']
/src/c-blosc/tests/fuzz/fuzz_decompress.c ['decompress_fuzzer'] ['decompress_fuzzer']

Directories in report

Directory
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/
/src/c-blosc/blosc/
/src/c-blosc/internal-complibs/zlib-1.3.1/
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/../common/
/src/c-blosc/tests/fuzz/
/src/c-blosc/internal-complibs/zstd-1.5.6/common/
/src/c-blosc/internal-complibs/zstd-1.5.6/compress/../common/
/src/c-blosc/internal-complibs/lz4-1.9.4/
/src/c-blosc/internal-complibs/zstd-1.5.6/decompress/

Metadata section

This sections shows the raw data that is used to produce this report. This is mainly used for further processing and developer debugging.

Fuzzer Calltree file Program data file Coverage file
decompress_fuzzer fuzzerLogFile-0-Gl6Ap26zeN.data fuzzerLogFile-0-Gl6Ap26zeN.data.yaml decompress_fuzzer.covreport
compress_fuzzer fuzzerLogFile-0-LeREsL8noJ.data fuzzerLogFile-0-LeREsL8noJ.data.yaml compress_fuzzer.covreport