High level conclusions

Fuzzers reach 33.61% of cyclomatic complexity.

Fuzzers reach 21.16% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

232 / 1096

Cyclomatic complexity statically reachable by fuzzers

1804 / 5367

Runtime code coverage of functions

212 / 1096

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	Runtime reached by Fuzzers	Combined 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: tests/fuzz/fuzz_compress_chunk.c

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	747	68.8%
gold	[1:9]	33	3.04%
yellow	[10:29]	1	0.09%
greenyellow	[30:49]	1	0.09%
lawngreen	50+	303	27.9%
All colors	1085	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
80	801	zstd_wrap_decompress	call site: 00801	zfp_getcell
46	883	blosc_compress_context	call site: 00883	blosc_compress_context_without_dict
42	63	my_free	call site: 00063	init_callback_threads
39	583	flags_to_filters	call site: 00583	sframe_open_chunk
38	124	free_thread_context	call site: 00124	check_nthreads
34	624	blosc2_stdio_open	call site: 00624	set_compressor_thread
32	1043	read_lazy_chunk_bytes	call site: 01043	set_compressor_thread
30	410	blosc2_bitshuffle	call site: 00410	fill_filter
30	751	chunk_memcpy_unaligned	call site: 00751	chunk_memcpy_unaligned
23	306	load_lib	call site: 00306	dlopen
18	933	blosc2_free_ctx	call site: 00933	fill_tuner
17	534	fill_codec	call site: 00534	blosc2_compcode_to_compname

Runtime coverage analysis

Covered functions

1039

Functions that are reachable but not covered

158

Reachable functions

287

Percentage of reachable functions covered

44.95%

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_chunk.c	10
blosc/blosc2.c	190
plugins/codecs/codecs-registry.c	1
plugins/filters/filters-registry.c	1
plugins/tuners/tuners-registry.c	1
bench/b2bench.c	1
blosc/blosc-private.h	21
blosc/stune.c	5
blosc/timestamp.c	3
blosc/shuffle.c	3
blosc/delta.c	1
blosc/trunc-prec.c	4
blosc/blosclz.c	24
blosc/sframe.c	8
tests/test_udio.c	4
blosc/blosc2-stdio.c	6
tests/test_race.c	1
blosc/fastcopy.c	21
plugins/codecs/zfp/blosc2-zfp.c	25
include/blosc2.h	4

Fuzzer: tests/fuzz/fuzz_compress_frame.c

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1352	73.1%
gold	[1:9]	62	3.35%
yellow	[10:29]	7	0.37%
greenyellow	[30:49]	2	0.10%
lawngreen	50+	425	22.9%
All colors	1848	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
116	948	blosc_compress_context	call site: 00948	blosc_compress_context_without_dict
96	1450	blosc_run_decompression_with_context	call site: 01450	create_regular_schunk
80	866	zstd_wrap_decompress	call site: 00866	zfp_getcell
60	1576	blosc2_schunk_free	call site: 01576	blosc2_schunk_open
56	272	blosc2_create_dctx	call site: 00272	frame_from_schunk
45	1108	get_header_info	call site: 01108	frame_from_schunk
41	1312	schunk_get_chunk_nbytes	call site: 01312	frame_get_lazychunk
39	433	create_thread_context	call site: 00433	attach_shared_pool
37	650	blosc_d	call site: 00650	sframe_open_chunk
36	1676	frame_to_schunk	call site: 01676	frame_get_chunk
36	1787	frame_to_schunk	call site: 01787	frame_update_trailer
35	76	my_free	call site: 00076	destroy_shared_pool

Runtime coverage analysis

Covered functions

1039

Functions that are reachable but not covered

186

Reachable functions

337

Percentage of reachable functions covered

44.81%

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_frame.c	12
blosc/blosc2.c	183
plugins/codecs/codecs-registry.c	1
plugins/filters/filters-registry.c	1
plugins/tuners/tuners-registry.c	1
bench/b2bench.c	1
blosc/stune.c	5
blosc/blosc-private.h	21
blosc/schunk.c	38
blosc/frame.c	63
blosc/timestamp.c	3
blosc/shuffle.c	3
blosc/delta.c	1
blosc/trunc-prec.c	4
blosc/blosclz.c	24
blosc/sframe.c	14
tests/test_udio.c	6
blosc/blosc2-stdio.c	14
tests/test_race.c	1
blosc/fastcopy.c	21
plugins/codecs/zfp/blosc2-zfp.c	25
include/blosc2.h	4
tests/test_api.c	3
tests/test_schunk_get_sparse.c	13
blosc/directories.c	13
tests/test_shared_pool.c	4

Fuzzer: tests/fuzz/fuzz_decompress_frame.c

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	945	65.9%
gold	[1:9]	63	4.39%
yellow	[10:29]	7	0.48%
greenyellow	[30:49]	2	0.13%
lawngreen	50+	415	28.9%
All colors	1432	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
80	930	zstd_wrap_decompress	call site: 00930	zfp_getcell
50	1239	blosc_compress_context	call site: 01239	blosc_compress_context_without_dict
42	63	my_free	call site: 00063	init_callback_threads
38	124	free_thread_context	call site: 00124	check_nthreads
36	751	blosc_d	call site: 00751	set_compressor_thread
32	542	read_lazy_chunk_bytes	call site: 00542	set_compressor_thread
30	605	blosc2_bitshuffle	call site: 00605	fill_filter
30	880	chunk_memcpy_unaligned	call site: 00880	chunk_memcpy_unaligned
26	1355	frame_get_vlmetalayers	call site: 01355	set_compressor_thread
23	381	load_lib	call site: 00381	dlopen
22	177	get_header_info	call site: 00177	sframe_open_index
21	1302	blosc2_schunk_free	call site: 01302	frame_get_chunk

Runtime coverage analysis

Covered functions

1039

Functions that are reachable but not covered

161

Reachable functions

312

Percentage of reachable functions covered

48.4%

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_decompress_frame.c	10
blosc/blosc2.c	183
plugins/codecs/codecs-registry.c	1
plugins/filters/filters-registry.c	1
plugins/tuners/tuners-registry.c	1
bench/b2bench.c	1
blosc/schunk.c	15
blosc/frame.c	46
blosc/sframe.c	13
tests/test_udio.c	4
blosc/blosc2-stdio.c	6
tests/test_race.c	1
blosc/blosc-private.h	21
blosc/timestamp.c	3
blosc/shuffle.c	3
blosc/delta.c	1
blosc/trunc-prec.c	4
blosc/blosclz.c	24
blosc/fastcopy.c	21
plugins/codecs/zfp/blosc2-zfp.c	25
include/blosc2.h	4
blosc/stune.c	5
tests/test_api.c	3
tests/test_shared_pool.c	4

Fuzzer: tests/fuzz/fuzz_decompress_chunk.c

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	599	68.2%
gold	[1:9]	33	3.75%
yellow	[10:29]	1	0.11%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	245	27.9%
All colors	878	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
80	789	zstd_wrap_decompress	call site: 00789	zfp_getcell
42	63	my_free	call site: 00063	init_callback_threads
38	124	free_thread_context	call site: 00124	check_nthreads
36	610	blosc_d	call site: 00610	set_compressor_thread
31	402	blosc1_set_compressor	call site: 00402	read_lazy_chunk_bytes
30	464	blosc2_bitshuffle	call site: 00464	fill_filter
30	739	chunk_memcpy_unaligned	call site: 00739	chunk_memcpy_unaligned
29	238	load_lib	call site: 00238	dlopen
17	588	fill_codec	call site: 00588	blosc2_compcode_to_compname
16	346	read_lazy_chunk_bytes	call site: 00346	sframe_open_chunk
11	170	read_chunk_header	call site: 00170	BLOSC_TRACE_ERROR
11	388	blosc2_compname_to_compcode	call site: 00388	BLOSC_ERROR

Runtime coverage analysis

Covered functions

1039

Functions that are reachable but not covered

140

Reachable functions

255

Percentage of reachable functions covered

45.1%

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_decompress_chunk.c	9
blosc/blosc2.c	164
plugins/codecs/codecs-registry.c	1
plugins/filters/filters-registry.c	1
plugins/tuners/tuners-registry.c	1
bench/b2bench.c	1
blosc/blosc-private.h	21
blosc/stune.c	1
blosc/sframe.c	8
tests/test_udio.c	4
blosc/blosc2-stdio.c	6
tests/test_race.c	1
blosc/timestamp.c	3
blosc/shuffle.c	3
blosc/delta.c	1
blosc/trunc-prec.c	4
blosc/blosclz.c	24
blosc/fastcopy.c	21
plugins/codecs/zfp/blosc2-zfp.c	25
include/blosc2.h	4

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
b2nd_concatenate	/src/c-blosc2/blosc/b2nd.c	6	['b2nd_context_t*', 'b2nd_array_t*', 'b2nd_array_t*', 'int8_t', 'bool', 'b2nd_array_t**']	20	0	88	13	27	384	0	2176	626
check_sparse_regular	/src/c-blosc2/tests/test_schunk_get_sparse.c	7	['bool', 'int32_t', 'int', 'int16_t', 'int64_t', 'int64_t*', 'int64_t']	15	0	18	3	3	365	7	1897	183
ndlz_compress	/src/c-blosc2/plugins/codecs/ndlz/ndlz.c	7	['uint8_t*', 'int32_t', 'uint8_t*', 'int32_t', 'uint8_t', 'blosc2_cparams*', 'void*']	5	0	14	4	1	21	0	195	181
run_lazy_vldecompress_block_ctx_dict_test	/src/c-blosc2/tests/test_vlblocks.c	2	['int', 'char*']	15	0	20	2	3	347	2	1660	102
ndlz_decompress	/src/c-blosc2/plugins/codecs/ndlz/ndlz.c	7	['uint8_t*', 'int32_t', 'uint8_t*', 'int32_t', 'uint8_t', 'blosc2_dparams*', 'void*']	2	0	14	4	1	11	0	79	74
pipeline_backward	/src/c-blosc2/blosc/blosc2.c	9	['struct thread_context*', 'int32_t', 'uint8_t*', 'int32_t', 'uint8_t*', 'uint8_t*', 'uint8_t*', 'int', 'int32_t']	5	0	102	24	34	38	0	94	62
iter_chunk	/src/c-blosc2/blosc/b2nd.c	12	['b2nd_array_t*', 'int8_t', 'int64_t*', 'b2nd_selection_t**', 'b2nd_selection_t**', 'b2nd_selection_t**', 'uint8_t*', 'int64_t*', 'int64_t*', 'bool', 'uint8_t*', 'int32_t']	16	0	62	8	15	322	5	1474	60
test_create_sframe_frame	/src/c-blosc2/bench/sframe_bench.c	1	['char*']	16	0	86	9	11	358	0	1792	53
XXH64_hash_t::XXH3_64bits_digest	/src/c-blosc2/plugins/codecs/ndlz/xxhash.h	1	['XXH_NOESCAPE']	8	0	9	3	2	40	0	52	52
shared_pool_worker	/src/c-blosc2/blosc/blosc2.c	1	['void*']	10	0	37	5	10	194	0	583	47

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

Functions statically reachable by fuzzers

370 / 1096

Cyclomatic complexity statically reachable by fuzzers

3229 / 5367

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	Runtime reached by Fuzzers	Combined 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

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_compress_chunk.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_wrap_decompress', 'blosc_compress_context', 'my_free', 'flags_to_filters', 'free_thread_context', 'blosc2_stdio_open', 'read_lazy_chunk_bytes', 'blosc2_bitshuffle', 'chunk_memcpy_unaligned', 'load_lib']

tests/fuzz/fuzz_compress_frame.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=['blosc_compress_context', 'blosc_run_decompression_with_context', 'zstd_wrap_decompress', 'blosc2_schunk_free', 'blosc2_create_dctx', 'get_header_info', 'schunk_get_chunk_nbytes', 'create_thread_context', 'blosc_d', 'frame_to_schunk']

tests/fuzz/fuzz_decompress_frame.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_wrap_decompress', 'blosc_compress_context', 'my_free', 'free_thread_context', 'blosc_d', 'read_lazy_chunk_bytes', 'blosc2_bitshuffle', 'chunk_memcpy_unaligned', 'frame_get_vlmetalayers', 'load_lib']

tests/fuzz/fuzz_decompress_chunk.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_wrap_decompress', 'my_free', 'free_thread_context', 'blosc_d', 'blosc1_set_compressor', 'blosc2_bitshuffle', 'chunk_memcpy_unaligned', 'load_lib', 'fill_codec', 'read_lazy_chunk_bytes']

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
zng_inflate	621	315	50.72%
BIT_initDStream	37	13	35.13%
ZSTD_getFrameHeader_advanced	89	43	48.31%
ZSTD_decodeLiteralsBlock	183	90	49.18%
ZSTD_execSequenceSplitLitBuffer(op,oend,litPtr+sequences[(seqNb-ADVANCED_SEQS)&STORED_SEQS_MASK].litLength-WILDCOPY_OVERLENGTH,sequences[(seqNb-ADVANCED_SEQS)&STORED_SEQS_MASK],&litPtr,litBufferEnd,prefixStart,dictStart,dictEnd)	57	31	54.38%
ZSTD_findFrameSizeInfoLegacy	41	15	36.58%
HUFv05_decompress4X2_usingDTable	73	33	45.20%
HUFv05_readDTableX4	60	16	26.66%
HUFv06_readDTableX4	59	16	27.11%
ZSTDv06_findFrameSizeInfoLegacy	40	20	50.0%
ZSTDv06_decodeLiteralsBlock	113	52	46.01%
ZSTDv06_loadEntropy	37	4	10.81%
HUFv07_decompress4X2_usingDTable_internal	71	35	49.29%
ZSTDv07_decodeLiteralsBlock	114	58	50.87%
bshuf_trans_byte_bitrow_AVX	75	10	13.33%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
read_chunk_header	98	34	34.69%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
pipeline_backward	119	38	31.93%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
check_nthreads	37	11	29.72%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_decompress	40	17	42.5%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_free_ctx	74	22	29.72%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_error_string	78	6	7.692%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
initialize_context_decompression	194	46	23.71%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc_d	381	128	33.59%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
release_thread_backend	48	7	14.58%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
copy_match	88	36	40.90%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
chunk_memcpy	57	21	36.84%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
get_shuffle_implementation	45	17	37.77%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_meta_get	36	5	13.88%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
ndmean_backward	114	16	14.03%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
load_lib	31	14	45.16%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_create_cctx	187	57	30.48%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
initialize_context_compression	125	48	38.4%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
load_lazy_chunk_dict	46	10	21.73%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
read_lazy_chunk_bytes	63	29	46.03%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
get_coffsets	112	37	33.03%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
frame_get_metalayers	69	22	31.88%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
frame_get_vlmetalayers	96	28	29.16%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
frame_to_schunk	284	84	29.57%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
frame_get_chunk	113	55	48.67%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
get_coffsets_nbytes	72	26	36.11%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
get_meta_from_header	101	31	30.69%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_schunk_free	60	31	51.66%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
zfp_acc_decompress	82	5	6.097%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
zfp_prec_decompress	105	5	4.761%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
ndcell_backward	119	16	13.44%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
zng_deflate	238	82	34.45%
ZSTD_buildSeqStore	131	38	29.00%
ZSTD_compressBlock_fast	32	12	37.5%
ZSTD_opt_getNextMatchAndUpdateSeqStore	35	10	28.57%
ZSTD_rescaleFreqs	97	49	50.51%
bshuf_trans_byte_elem_SSE	47	7	14.89%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_compname_to_compcode	31	7	22.58%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
pipeline_forward	105	32	30.47%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_compress	160	49	30.62%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc_c	217	100	46.08%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_compress_ctx	133	17	12.78%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']
blosc2_schunk_new	64	13	20.31%	['/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c']

New fuzzers

The below fuzzers are templates and suggestions for how to target the set of optimal functions above

b2nd.c

Target file: /src/c-blosc2/blosc/b2nd.c
Target functions: b2nd_concatenate, iter_chunk

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target b2nd_concatenate */
  UNKNOWN_TYPE unknown_0;
  UNKNOWN_TYPE unknown_1;
  UNKNOWN_TYPE unknown_2;
  UNKNOWN_TYPE unknown_3;
  UNKNOWN_TYPE unknown_4;
  UNKNOWN_TYPE unknown_5;
  b2nd_concatenate(unknown_0, unknown_1, unknown_2, unknown_3, unknown_4, unknown_5);

  /* target iter_chunk */
  UNKNOWN_TYPE unknown_38;
  UNKNOWN_TYPE unknown_39;
  UNKNOWN_TYPE unknown_40;
  UNKNOWN_TYPE unknown_41;
  UNKNOWN_TYPE unknown_42;
  UNKNOWN_TYPE unknown_43;
  UNKNOWN_TYPE unknown_44;
  UNKNOWN_TYPE unknown_45;
  UNKNOWN_TYPE unknown_46;
  UNKNOWN_TYPE unknown_47;
  UNKNOWN_TYPE unknown_48;
  UNKNOWN_TYPE unknown_49;
  iter_chunk(unknown_38, unknown_39, unknown_40, unknown_41, unknown_42, unknown_43, unknown_44, unknown_45, unknown_46, unknown_47, unknown_48, unknown_49);

  af_safe_gb_cleanup();
}

test_schunk_get_sparse.c

Target file: /src/c-blosc2/tests/test_schunk_get_sparse.c
Target functions: check_sparse_regular

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target check_sparse_regular */
  UNKNOWN_TYPE unknown_6;
  UNKNOWN_TYPE unknown_7;
  int new_var8 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_9;
  UNKNOWN_TYPE unknown_10;
  UNKNOWN_TYPE unknown_11;
  UNKNOWN_TYPE unknown_12;
  check_sparse_regular(unknown_6, unknown_7, new_var8, unknown_9, unknown_10, unknown_11, unknown_12);

  af_safe_gb_cleanup();
}

ndlz.c

Target file: /src/c-blosc2/plugins/codecs/ndlz/ndlz.c
Target functions: ndlz_compress, ndlz_decompress

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target ndlz_compress */
  UNKNOWN_TYPE unknown_13;
  UNKNOWN_TYPE unknown_14;
  UNKNOWN_TYPE unknown_15;
  UNKNOWN_TYPE unknown_16;
  UNKNOWN_TYPE unknown_17;
  UNKNOWN_TYPE unknown_18;
  UNKNOWN_TYPE unknown_19;
  ndlz_compress(unknown_13, unknown_14, unknown_15, unknown_16, unknown_17, unknown_18, unknown_19);

  /* target ndlz_decompress */
  UNKNOWN_TYPE unknown_22;
  UNKNOWN_TYPE unknown_23;
  UNKNOWN_TYPE unknown_24;
  UNKNOWN_TYPE unknown_25;
  UNKNOWN_TYPE unknown_26;
  UNKNOWN_TYPE unknown_27;
  UNKNOWN_TYPE unknown_28;
  ndlz_decompress(unknown_22, unknown_23, unknown_24, unknown_25, unknown_26, unknown_27, unknown_28);

  af_safe_gb_cleanup();
}

test_vlblocks.c

Target file: /src/c-blosc2/tests/test_vlblocks.c
Target functions: run_lazy_vldecompress_block_ctx_dict_test

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target run_lazy_vldecompress_block_ctx_dict_test */
  int new_var20 = ada_safe_get_int();
  char *new_var21 = ada_safe_get_char_p();
  run_lazy_vldecompress_block_ctx_dict_test(new_var20, new_var21);

  af_safe_gb_cleanup();
}

blosc2.c

Target file: /src/c-blosc2/blosc/blosc2.c
Target functions: pipeline_backward, shared_pool_worker

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target pipeline_backward */
  structthread_context* new_var29 = calloc(sizeof(structthread_context), 1);
  UNKNOWN_TYPE unknown_30;
  UNKNOWN_TYPE unknown_31;
  UNKNOWN_TYPE unknown_32;
  UNKNOWN_TYPE unknown_33;
  UNKNOWN_TYPE unknown_34;
  UNKNOWN_TYPE unknown_35;
  int new_var36 = ada_safe_get_int();
  UNKNOWN_TYPE unknown_37;
  pipeline_backward(new_var29, unknown_30, unknown_31, unknown_32, unknown_33, unknown_34, unknown_35, new_var36, unknown_37);

  /* target shared_pool_worker */
  UNKNOWN_TYPE unknown_52;
  shared_pool_worker(unknown_52);

  af_safe_gb_cleanup();
}

sframe_bench.c

Target file: /src/c-blosc2/bench/sframe_bench.c
Target functions: test_create_sframe_frame

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target test_create_sframe_frame */
  char *new_var50 = ada_safe_get_char_p();
  test_create_sframe_frame(new_var50);

  af_safe_gb_cleanup();
}

xxhash.h

Target file: /src/c-blosc2/plugins/codecs/ndlz/xxhash.h
Target functions: XXH64_hash_t::XXH3_64bits_digest

#include "ada_fuzz_header.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  af_safe_gb_init(data, size);

  /* target XXH64_hash_t::XXH3_64bits_digest */
  UNKNOWN_TYPE unknown_51;
  XXH64_hash_t::XXH3_64bits_digest(unknown_51);

  af_safe_gb_cleanup();
}

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-blosc2/tests/test_frame_trailer_neg_nvlmeta.c	[]	[]
/src/c-blosc2/tests/test_frame_malformed_trailer_len.c	[]	[]
/src/c-blosc2/tests/test_mmap.c	[]	[]
/src/c-blosc2/tests/test_postfilter.c	[]	[]
/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c	['tests/fuzz/fuzz_compress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c']
/src/c-blosc2/examples/schunk_postfilter.c	[]	[]
/src/c-blosc2/tests/test_insert_chunk.c	[]	[]
/src/c-blosc2/tests/test_shared_pool.c	['tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c']	[]
/src/c-blosc2/tests/test_shuffle_roundtrip_sse2.c	[]	[]
/src/c-blosc2/tests/test_compressor.c	[]	[]
/src/c-blosc2/blosc/sframe.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	[]
/src/c-blosc2/tests/test_getitem_overflow.c	[]	[]
/src/c-blosc2/tests/test_prefilter.c	[]	[]
/src/c-blosc2/tests/test_stdio_validation.c	[]	[]
/src/c-blosc2/examples/b2nd/example_frame_generator.c	[]	[]
/src/c-blosc2/plugins/codecs/zfp/test_zfp_prec_float.c	[]	[]
/src/c-blosc2/blosc/bitshuffle-neon.c	[]	[]
/src/c-blosc2/include/blosc2.h	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/test_shuffle_roundtrip_altivec.c	[]	[]
/src/c-blosc2/plugins/codecs/ndlz/ndlz4x4.c	[]	[]
/src/c-blosc2/tests/test_sframe.c	[]	[]
/src/c-blosc2/blosc/schunk.c	['tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c']	['tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c']
/src/c-blosc2/tests/test_getitem.c	[]	[]
/src/c-blosc2/plugins/codecs/codecs-registry.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/blosc/transpose-altivec.h	[]	[]
/src/c-blosc2/tests/b2nd/test_b2nd_resize.c	[]	[]
/src/c-blosc2/blosc/fastcopy.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/test_frame_metalayer_overflow.c	[]	[]
/src/c-blosc2/tests/test_shuffle_roundtrip_generic.c	[]	[]
/src/c-blosc2/tests/test_maskout.c	[]	[]
/src/c-blosc2/tests/test_frame.c	[]	[]
/src/c-blosc2/bench/sframe_bench.c	[]	[]
/src/c-blosc2/tests/test_reorder_offsets.c	[]	[]
/src/c-blosc2/plugins/codecs/zfp/test_zfp_rate_float.c	[]	[]
/src/c-blosc2/examples/b2nd/example_print_meta.c	[]	[]
/src/c-blosc2/tests/test_common.h	[]	[]
/src/c-blosc2/blosc/blosc2-stdio.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/compat/filegen.c	[]	[]
/src/c-blosc2/bench/trunc_prec_schunk.c	[]	[]
/src/c-blosc2/blosc/shuffle-neon.c	[]	[]
/src/c-blosc2/plugins/codecs/ndlz/ndlz-private.h	[]	[]
/src/c-blosc2/blosc/frame.c	['tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c']	['tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c']
/src/c-blosc2/tests/test_schunk_negative_index.c	[]	[]
/src/c-blosc2/plugins/filters/ndmean/test_ndmean_mean.c	[]	[]
/src/c-blosc2/tests/test_get_slice_buffer.c	[]	[]
/src/c-blosc2/tests/b2nd/test_b2nd_orthogonal_selection.c	[]	[]
/src/c-blosc2/tests/test_dict_schunk.c	[]	[]
/src/c-blosc2/plugins/filters/ndcell/ndcell.c	[]	[]
/src/c-blosc2/bench/b2bench.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	[]
/src/c-blosc2/tests/test_vlblocks.c	[]	[]
/src/c-blosc2/blosc/shuffle-avx2.c	[]	[]
/src/c-blosc2/plugins/codecs/zfp/zfp-private.h	[]	[]
/src/c-blosc2/bench/get_sparse.c	[]	[]
/src/c-blosc2/blosc/bitshuffle-altivec.c	[]	[]
/src/c-blosc2/tests/test_delete_chunk.c	[]	[]
/src/c-blosc2/blosc/blosclz.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/blosc/blosc2.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/plugins/codecs/ndlz/ndlz.c	[]	[]
/src/c-blosc2/tests/test_shuffle_roundtrip.c	[]	[]
/src/c-blosc2/tests/test_race.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	[]
/src/c-blosc2/tests/b2nd/test_b2nd_concatenate.c	[]	[]
/src/c-blosc2/plugins/filters/bytedelta/test_bytedelta.c	[]	[]
/src/c-blosc2/tests/test_set_slice_buffer.c	[]	[]
/src/c-blosc2/examples/find_roots.c	[]	[]
/src/c-blosc2/tests/test_update_chunk.c	[]	[]
/src/c-blosc2/tests/test_schunk_frame.c	[]	[]
/src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c	[]	[]
/src/c-blosc2/examples/urfilters.c	[]	[]
/src/c-blosc2/tests/test_schunk_header.c	[]	[]
/src/c-blosc2/blosc/context.h	[]	[]
/src/c-blosc2/tests/test_lazychunk.c	[]	[]
/src/c-blosc2/tests/b2nd/cutest.h	[]	[]
/src/c-blosc2/examples/urcodecs.c	[]	[]
/src/c-blosc2/blosc/stune.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/include/blosc2/blosc2-common.h	[]	[]
/src/c-blosc2/blosc/delta.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/b2nd/test_b2nd_zero_chunkshape_nonzero_shape.c	[]	[]
/src/c-blosc2/tests/b2nd/test_common.h	[]	[]
/src/c-blosc2/plugins/filters/int_trunc/test_int_trunc.c	[]	[]
/src/c-blosc2/tests/test_frame_lazychunk_malformed_cbytes.c	[]	[]
/src/c-blosc2/blosc/win32/threading.c	[]	[]
/src/c-blosc2/tests/test_schunk.c	[]	[]
/src/c-blosc2/tests/test_special_chunk_copy.c	[]	[]
/src/c-blosc2/plugins/codecs/zfp/blosc2-zfp.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/test_compress_roundtrip.c	[]	[]
/src/c-blosc2/blosc/bitshuffle-avx2.c	[]	[]
/src/c-blosc2/tests/test_insert_chunk_reopen.c	[]	[]
/src/c-blosc2/tests/test_blosc1_compat.c	[]	[]
/src/c-blosc2/tests/test_lazychunk_memcpyed.c	[]	[]
/src/c-blosc2/tests/test_nthreads.c	[]	[]
/src/c-blosc2/tests/test_vl_block_overflow.c	[]	[]
/src/c-blosc2/bench/zero_runlen.c	[]	[]
/src/c-blosc2/tests/b2nd/test_b2nd_stringshuffle.c	[]	[]
/src/c-blosc2/plugins/tuners/tuners-registry.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/test_urfilter_delta.c	[]	[]
/src/c-blosc2/tests/test_shuffle_roundtrip_neon.c	[]	[]
/src/c-blosc2/plugins/codecs/ndlz/xxhash.h	[]	[]
/src/c-blosc2/blosc/shuffle-generic.c	[]	[]
/src/c-blosc2/tests/test_bitshuffle_roundtrip.c	[]	[]
/src/c-blosc2/blosc/shuffle-generic.h	[]	[]
/src/c-blosc2/tests/test_nolock.c	[]	[]
/src/c-blosc2/examples/vlblocks.c	[]	[]
/src/c-blosc2/blosc/shuffle-altivec.c	[]	[]
/src/c-blosc2/plugins/codecs/zfp/test_zfp_rate_getitem.c	[]	[]
/src/c-blosc2/tests/test_schunk_get_sparse.c	['tests/fuzz/fuzz_compress_frame.c']	[]
/src/c-blosc2/blosc/shuffle-sse2.c	[]	[]
/src/c-blosc2/compat/filegen-vl.c	[]	[]
/src/c-blosc2/blosc/bitshuffle-avx512.c	[]	[]
/src/c-blosc2/blosc/bitshuffle-sse2.c	[]	[]
/src/c-blosc2/tests/test_maxout.c	[]	[]
/src/c-blosc2/plugins/filters/filters-registry.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/test_shared_thread_pool.c	[]	[]
/src/c-blosc2/tests/fuzz/fuzz_decompress_chunk.c	['tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/test_api.c	['tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c']	[]
/src/c-blosc2/bench/b2nd/bench_zfp_getitem.c	[]	[]
/src/c-blosc2/tests/test_shuffle_roundtrip_avx2.c	[]	[]
/src/c-blosc2/tests/b2nd/test_b2nd_get_sparse.c	[]	[]
/src/c-blosc2/plugins/filters/ndcell/test_ndcell.c	[]	[]
/src/c-blosc2/blosc/shuffle.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/plugins/filters/bytedelta/bytedelta.c	[]	[]
/src/c-blosc2/plugins/codecs/zfp/test_zfp_acc_float.c	[]	[]
/src/c-blosc2/blosc/b2nd_utils.c	[]	[]
/src/c-blosc2/blosc/threading.h	[]	[]
/src/c-blosc2/tests/test_urcodecs.c	[]	[]
/src/c-blosc2/blosc/b2nd.c	[]	[]
/src/c-blosc2/blosc/bitshuffle-generic.c	[]	[]
/src/c-blosc2/tests/test_udio.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	[]
/src/c-blosc2/tests/test_get_slice_nchunks.c	[]	[]
/src/c-blosc2/bench/create_frame.c	[]	[]
/src/c-blosc2/blosc/timestamp.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/tests/fuzz/fuzz_compress_frame.c	['tests/fuzz/fuzz_compress_frame.c']	['tests/fuzz/fuzz_compress_frame.c']
/src/c-blosc2/tests/test_frame_malformed_offsets.c	[]	[]
/src/c-blosc2/blosc/blosc-private.h	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']
/src/c-blosc2/blosc/directories.c	['tests/fuzz/fuzz_compress_frame.c']	[]
/src/c-blosc2/tests/fuzz/fuzz_decompress_frame.c	['tests/fuzz/fuzz_decompress_frame.c']	['tests/fuzz/fuzz_decompress_frame.c']
/src/c-blosc2/blosc/bitshuffle-generic.h	[]	[]
/src/c-blosc2/plugins/codecs/ndlz/test_ndlz.c	[]	[]
/src/c-blosc2/tests/b2nd/test_b2nd_save_append.c	[]	[]
/src/c-blosc2/blosc/trunc-prec.c	['tests/fuzz/fuzz_compress_chunk.c', 'tests/fuzz/fuzz_compress_frame.c', 'tests/fuzz/fuzz_decompress_frame.c', 'tests/fuzz/fuzz_decompress_chunk.c']	[]
/src/c-blosc2/tests/test_empty_buffer.c	[]	[]
/src/c-blosc2/plugins/filters/ndmean/ndmean.c	[]	[]
/src/c-blosc2/plugins/filters/int_trunc/int_trunc.c	[]	[]
/src/c-blosc2/tests/test_urfilters.c	[]	[]
/src/c-blosc2/tests/test_variable_chunks.c	[]	[]
/src/c-blosc2/tests/test_bitshuffle_leftovers.c	[]	[]
/src/c-blosc2/include/b2nd.h	[]	[]

Directories in report

Directory
/src/c-blosc2/plugins/filters/bytedelta/
/src/c-blosc2/plugins/tuners/
/src/c-blosc2/blosc/win32/
/src/c-blosc2/tests/
/src/c-blosc2/examples/b2nd/
/src/c-blosc2/plugins/codecs/zfp/
/src/c-blosc2/compat/
/src/c-blosc2/include/
/src/c-blosc2/plugins/codecs/
/src/c-blosc2/tests/b2nd/
/src/c-blosc2/plugins/filters/
/src/c-blosc2/plugins/filters/ndcell/
/src/c-blosc2/blosc/
/src/c-blosc2/plugins/codecs/ndlz/
/src/c-blosc2/include/blosc2/
/src/c-blosc2/bench/b2nd/
/src/c-blosc2/bench/
/src/c-blosc2/examples/
/src/c-blosc2/plugins/filters/int_trunc/
/src/c-blosc2/tests/fuzz/
/src/c-blosc2/plugins/filters/ndmean/

This section shows a list of 3rd party function calls and their relative coverage information. By static analysis of the target project code, all of the 3rd party function call and their caller information, including the source file and line number that initiate the call are captured. The caller source code file and line number are shown in column 2 while column 1 is the function name of the 3rd party function call. Each occurrent of the 3rd party function call will occuply a separate row. Column 3 of each row indicate if the 3rd party call in the source file line is unreachable. Column 4 lists all fuzzers that have covered that particular system call in that specific location (source file and line)during their dynamic fuzzing.

Function in each files in report

Target sink	Callsite location	Reached by fuzzer	Covered by Fuzzers