High level conclusions

Fuzzers reach 33.37% of cyclomatic complexity.

Fuzzers reach 21.07% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

232 / 1101

Cyclomatic complexity statically reachable by fuzzers

1804 / 5405

Runtime code coverage of functions

199 / 1101

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	744	68.5%
gold	[1:9]	92	8.47%
yellow	[10:29]	4	0.36%
greenyellow	[30:49]	3	0.27%
lawngreen	50+	242	22.3%
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
81	801	zstd_wrap_decompress	call site: 00801	do_job
46	883	blosc_compress_context	call site: 00883	blosc_compress_context_without_dict
41	64	destroy_thread_context	call site: 00064	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	751	chunk_memcpy_unaligned	call site: 00751	chunk_memcpy_unaligned
32	1043	read_lazy_chunk_bytes	call site: 01043	set_compressor_thread
30	410	blosc2_bitshuffle	call site: 00410	fill_filter
23	306	load_lib	call site: 00306	dlopen
17	534	fill_codec	call site: 00534	blosc2_compcode_to_compname
14	1015	initialize_context_decompression	call site: 01015	load_lazy_chunk_dict

Runtime coverage analysis

Covered functions

1064

Functions that are reachable but not covered

160

Reachable functions

287

Percentage of reachable functions covered

44.25%

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_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	598	68.1%
gold	[1:9]	88	10.0%
yellow	[10:29]	4	0.45%
greenyellow	[30:49]	1	0.11%
lawngreen	50+	187	21.2%
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
41	64	destroy_thread_context	call site: 00064	init_callback_threads
38	124	free_thread_context	call site: 00124	check_nthreads
36	610	blosc_d	call site: 00610	set_compressor_thread
32	739	chunk_memcpy_unaligned	call site: 00739	chunk_memcpy_unaligned
31	402	blosc1_set_compressor	call site: 00402	read_lazy_chunk_bytes
30	464	blosc2_bitshuffle	call site: 00464	fill_filter
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	449	last_filter	call site: 00449	pipeline_forward

Runtime coverage analysis

Covered functions

1064

Functions that are reachable but not covered

141

Reachable functions

255

Percentage of reachable functions covered

44.71%

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

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	980	66.8%
gold	[1:9]	121	8.24%
yellow	[10:29]	10	0.68%
greenyellow	[30:49]	4	0.27%
lawngreen	50+	352	23.9%
All colors	1467	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	1229	blosc_compress_context	call site: 01229	blosc_compress_context_without_dict
41	64	destroy_thread_context	call site: 00064	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
32	880	chunk_memcpy_unaligned	call site: 00880	chunk_memcpy_unaligned
30	605	blosc2_bitshuffle	call site: 00605	fill_filter
29	1154	frame_special_chunk	call site: 01154	set_compressor_thread
26	1390	frame_get_vlmetalayers	call site: 01390	set_compressor_thread
23	381	load_lib	call site: 00381	dlopen
22	177	get_header_info	call site: 00177	sframe_open_index

Runtime coverage analysis

Covered functions

1064

Functions that are reachable but not covered

164

Reachable functions

314

Percentage of reachable functions covered

47.77%

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	49
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_shared_pool.c	4
tests/test_api.c	3

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	1376	74.4%
gold	[1:9]	120	6.49%
yellow	[10:29]	10	0.54%
greenyellow	[30:49]	4	0.21%
lawngreen	50+	338	18.2%
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
98	1450	blosc_run_decompression_with_context	call site: 01450	create_regular_schunk
81	866	zstd_wrap_decompress	call site: 00866	do_job
65	1308	frame_get_chunk	call site: 01308	frame_append_chunk
60	1576	blosc2_schunk_free	call site: 01576	blosc2_schunk_open
56	272	blosc2_create_dctx	call site: 00272	frame_from_schunk
53	1108	get_header_info	call site: 01108	blosc2_schunk_append_buffer
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
35	1787	frame_to_schunk	call site: 01787	frame_update_trailer
34	77	destroy_thread_context	call site: 00077	destroy_shared_pool

Runtime coverage analysis

Covered functions

1064

Functions that are reachable but not covered

194

Reachable functions

337

Percentage of reachable functions covered

42.43%

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

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	197	183
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	13	0	81	76
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
expect_rejected	/src/c-blosc2/plugins/codecs/zfp/test_zfp_oversized_blockshape.c	4	['char*', 'int32_t', 'int32_t', 'int32_t']	15	0	14	3	4	322	0	1226	56
test_create_sframe_frame	/src/c-blosc2/bench/sframe_bench.c	1	['char*']	15	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

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

Functions statically reachable by fuzzers

375 / 1101

Cyclomatic complexity statically reachable by fuzzers

3242 / 5405

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', 'destroy_thread_context', 'flags_to_filters', 'free_thread_context', 'blosc2_stdio_open', 'chunk_memcpy_unaligned', 'read_lazy_chunk_bytes', 'blosc2_bitshuffle', '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', 'destroy_thread_context', 'free_thread_context', 'blosc_d', 'chunk_memcpy_unaligned', 'blosc1_set_compressor', 'blosc2_bitshuffle', 'load_lib', 'fill_codec', 'read_lazy_chunk_bytes']

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', 'destroy_thread_context', 'free_thread_context', 'blosc_d', 'read_lazy_chunk_bytes', 'chunk_memcpy_unaligned', 'blosc2_bitshuffle', 'frame_special_chunk', 'frame_get_vlmetalayers']

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', 'frame_get_chunk', 'blosc2_schunk_free', 'blosc2_create_dctx', 'get_header_info', 'create_thread_context', 'blosc_d', 'frame_to_schunk']

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_decompress4X4_usingDTable	73	35	47.94%
HUFv06_decompress4X4_usingDTable	72	32	44.44%
ZSTDv06_findFrameSizeInfoLegacy	40	20	50.0%
bshuf_trans_byte_bitrow_AVX	75	10	13.33%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
load_lib	31	14	45.16%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
read_chunk_header	98	29	29.59%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
pipeline_backward	119	35	29.41%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
check_nthreads	37	11	29.72%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc2_decompress	40	17	42.5%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc2_free_ctx	74	26	35.13%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc2_error_string	78	6	7.692%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
initialize_context_decompression	194	46	23.71%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
load_lazy_chunk_dict	46	10	21.73%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
read_lazy_chunk_bytes	63	29	46.03%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc_d	381	121	31.75%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
release_thread_backend	48	7	14.58%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
copy_match	88	29	32.95%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
chunk_memcpy	57	21	36.84%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
get_shuffle_implementation	45	17	37.77%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc2_meta_get	36	5	13.88%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
zfp_acc_decompress	88	5	5.681%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
zfp_prec_decompress	111	5	4.504%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
zfp_rate_decompress	89	5	5.617%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
ndcell_backward	119	16	13.44%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
ndmean_backward	128	16	12.5%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc2_create_cctx	187	67	35.82%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
initialize_context_compression	125	52	41.6%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
get_coffsets	112	37	33.03%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
frame_get_metalayers	69	22	31.88%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
frame_get_vlmetalayers	96	28	29.16%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
frame_to_schunk	284	84	29.57%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
frame_get_chunk	113	55	48.67%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
get_coffsets_nbytes	72	26	36.11%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
get_meta_from_header	101	31	30.69%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc2_schunk_decompress_chunk	39	17	43.58%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc_stune_next_blocksize	95	26	27.36%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_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_compress_chunk.c', '/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_frame.c']
pipeline_forward	105	29	27.61%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc2_compress	160	49	30.62%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_frame.c']
blosc_compress_context	85	39	45.88%	['/src/c-blosc2/tests/fuzz/fuzz_compress_chunk.c', '/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_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

#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);

  af_safe_gb_cleanup();
}

test_zfp_oversized_blockshape.c

Target file: /src/c-blosc2/plugins/codecs/zfp/test_zfp_oversized_blockshape.c
Target functions: expect_rejected

#include "ada_fuzz_header.h"

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

  /* target expect_rejected */
  char *new_var50 = ada_safe_get_char_p();
  UNKNOWN_TYPE unknown_51;
  UNKNOWN_TYPE unknown_52;
  UNKNOWN_TYPE unknown_53;
  expect_rejected(new_var50, unknown_51, unknown_52, unknown_53);

  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_var54 = ada_safe_get_char_p();
  test_create_sframe_frame(new_var54);

  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_55;
  XXH64_hash_t::XXH3_64bits_digest(unknown_55);

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

Directories in report

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

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