High level conclusions

Fuzzer write_fuzzer is blocked:

The runtime code coverage of write_fuzzer covers 27.30% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer tiff_read_rgba_fuzzer is blocked:

The runtime code coverage of tiff_read_rgba_fuzzer covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer tiff_decode_fuzzer is blocked:

The runtime code coverage of tiff_decode_fuzzer covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzers reach 23.90% of cyclomatic complexity.

Fuzzers reach 24.68% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

392 / 1588

Cyclomatic complexity statically reachable by fuzzers

3468 / 14507

Runtime code coverage of functions

145 / 1588

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: tiff_decode_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	2072	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	2072	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
2071	0	EP	call site: 00000	TIFFClientOpen

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

378

Reachable functions

378

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/libtiff/contrib/oss-fuzz/tiff_decode_fuzzer.cc	3
/src/libtiff/libtiff/tif_error.c	4
/src/libtiff/libtiff/tif_warning.c	2
/src/libtiff/libtiff/tif_stream.cxx	16
/src/libtiff/libtiff/tif_open.c	11
/src/libtiff/libtiff/tif_unix.c	7
/src/libtiff/libtiff/tif_dir.c	13
/src/libtiff/libtiff/tif_compress.c	3
/src/libtiff/libtiff/tif_swab.c	9
/src/libtiff/libtiff/tif_dirinfo.c	12
/src/libtiff/libtiff/tif_aux.c	13
/src/libtiff/libtiff/tif_dirread.c	114
/src/libtiff/libtiff/tif_hash_set.c	13
/src/libtiff/libtiff/tif_codec.c	1
/src/libtiff/libtiff/tif_strip.c	8
/src/libtiff/libtiff/tif_tile.c	5
/src/libtiff/libtiff/tif_write.c	3
/src/libtiff/libtiff/tif_close.c	3
/src/libtiff/libtiff/tif_flush.c	3
/src/libtiff/libtiff/tif_dirwrite.c	69
/src/libtiff/libtiff/tif_read.c	14
/src/libtiff/libtiff/tif_getimage.c	19
/src/libtiff/libtiff/tif_color.c	3

Fuzzer: tiff_read_rgba_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	2086	100.%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	0	0.0%
All colors	2086	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
2085	0	EP	call site: 00000	TIFFClientOpen

Runtime coverage analysis

Covered functions

0

Functions that are reachable but not covered

399

Reachable functions

399

Percentage of reachable functions covered

0.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/libtiff/contrib/oss-fuzz/tiff_read_rgba_fuzzer.cc	2
/src/libtiff/libtiff/tif_error.c	4
/src/libtiff/libtiff/tif_warning.c	2
/src/libtiff/libtiff/tif_stream.cxx	16
/src/libtiff/libtiff/tif_open.c	11
/src/libtiff/libtiff/tif_unix.c	7
/src/libtiff/libtiff/tif_dir.c	13
/src/libtiff/libtiff/tif_compress.c	3
/src/libtiff/libtiff/tif_swab.c	9
/src/libtiff/libtiff/tif_dirinfo.c	12
/src/libtiff/libtiff/tif_aux.c	14
/src/libtiff/libtiff/tif_dirread.c	114
/src/libtiff/libtiff/tif_hash_set.c	13
/src/libtiff/libtiff/tif_codec.c	1
/src/libtiff/libtiff/tif_strip.c	7
/src/libtiff/libtiff/tif_tile.c	5
/src/libtiff/libtiff/tif_write.c	3
/src/libtiff/libtiff/tif_close.c	3
/src/libtiff/libtiff/tif_flush.c	3
/src/libtiff/libtiff/tif_dirwrite.c	69
/src/libtiff/libtiff/tif_getimage.c	20
/src/libtiff/libtiff/tif_color.c	3
/src/libtiff/libtiff/tif_read.c	11
/src/libtiff/libtiff/tif_jpeg.c	6
/src/libjpeg-turbo/src/jerror.c	1
/src/libjpeg-turbo/src/jdapimin.c	5
/src/libjpeg-turbo/src/jmemmgr.c	1
/src/libjpeg-turbo/src/jmemnobs.c	3
/src/libjpeg-turbo/src/jdmarker.c	2
/src/libjpeg-turbo/src/jdinput.c	1
/src/libjpeg-turbo/src/jcomapi.c	2

Fuzzer: tiff_packbits_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1663	89.3%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	198	10.6%
All colors	1861	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
563	1214	TIFFStripSize	call site: 01214	TIFFCleanup
286	640	TIFFReadDirEntryLong8ArrayWithLimit	call site: 00640	TIFFReadDirEntryByteArray
243	382	TIFFFetchNormalTag	call site: 00382	TIFFReadDirEntryByteArray
62	268	EvaluateIFDdatasizeReading	call site: 00268	TIFFReadDirEntryByte
52	1052	TIFFReadDirectory	call site: 01052	EstimateStripByteCounts
36	231	TIFFReadDirEntryArrayWithLimit	call site: 00231	EvaluateIFDdatasizeReading
24	1127	TIFFGetStrileByteCountWithErr	call site: 01127	_TIFFFillStriles
23	154	TIFFFetchDirectory	call site: 00154	_TIFFCheckMalloc
22	961	TIFFFetchStripThing	call site: 00961	TIFFFetchStripThing
19	1030	TIFFReadDirectory	call site: 01030	TIFFSetupStrips
18	1164	TIFFReadDirectory	call site: 01164	ChopUpSingleUncompressedStrip
18	1184	TIFFVStripSize64	call site: 01184	TryChopUpUncompressedBigTiff

Runtime coverage analysis

Covered functions

111

Functions that are reachable but not covered

224

Reachable functions

323

Percentage of reachable functions covered

30.65%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/libtiff/contrib/oss-fuzz/tiff_packbits_fuzzer.cc	5
/src/libtiff/libtiff/tif_error.c	4
/src/libtiff/libtiff/tif_warning.c	2
/src/libtiff/libtiff/tif_open.c	10
/src/libtiff/libtiff/tif_unix.c	7
/src/libtiff/libtiff/tif_dir.c	13
/src/libtiff/libtiff/tif_compress.c	3
/src/libtiff/libtiff/tif_swab.c	9
/src/libtiff/libtiff/tif_dirinfo.c	12
/src/libtiff/libtiff/tif_aux.c	13
/src/libtiff/libtiff/tif_dirread.c	114
/src/libtiff/libtiff/tif_hash_set.c	13
/src/libtiff/libtiff/tif_codec.c	1
/src/libtiff/libtiff/tif_strip.c	8
/src/libtiff/libtiff/tif_tile.c	5
/src/libtiff/libtiff/tif_write.c	3
/src/libtiff/libtiff/tif_close.c	3
/src/libtiff/libtiff/tif_flush.c	3
/src/libtiff/libtiff/tif_dirwrite.c	69
/src/libtiff/libtiff/tif_read.c	10

Fuzzer: write_fuzzer

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1677	89.2%
gold	[1:9]	2	0.10%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	2	0.10%
lawngreen	50+	197	10.4%
All colors	1878	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
721	199	TIFFFreeDirectory	call site: 00199	TIFFFetchNormalTag
223	1419	TIFFWriteDirectorySec	call site: 01419	TIFFWriteDirectoryTagLongLong8Array
90	1645	TIFFWriteDirectorySec	call site: 01645	TIFFRewriteDirectorySec
84	947	_TIFFFillStriles	call site: 00947	TIFFFetchNormalTag
60	1112	_TIFFStrileSize64	call site: 01112	ChopUpSingleUncompressedStrip
55	1039	TIFFSetupStrips	call site: 01039	EstimateStripByteCounts
50	1217	TIFFAppendToStrip	call site: 01217	TIFFForceStrileArrayWriting
48	132	_TIFFCheckDirNumberAndOffset	call site: 00132	TIFFFetchDirectory
45	1268	WriteAsLong4	call site: 01268	_TIFFRewriteField
25	921	TIFFFieldWithTag	call site: 00921	TIFFFetchNormalTag
20	1341	TIFFWriteDirectorySec	call site: 01341	TIFFWriteDirectoryTagRational
19	1174	TIFFVStripSize64	call site: 01174	TryChopUpUncompressedBigTiff

Runtime coverage analysis

Covered functions

97

Functions that are reachable but not covered

237

Reachable functions

326

Percentage of reachable functions covered

27.3%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
/src/libtiff/contrib/oss-fuzz/write_fuzzer.cc	1
/src/libtiff/libtiff/tif_unix.c	17
/src/libtiff/libtiff/tif_open.c	9
/src/libtiff/libtiff/tif_error.c	3
/src/libtiff/libtiff/tif_dir.c	13
/src/libtiff/libtiff/tif_compress.c	2
/src/libtiff/libtiff/tif_warning.c	1
/src/libtiff/libtiff/tif_swab.c	9
/src/libtiff/libtiff/tif_dirinfo.c	12
/src/libtiff/libtiff/tif_aux.c	13
/src/libtiff/libtiff/tif_dirread.c	114
/src/libtiff/libtiff/tif_hash_set.c	13
/src/libtiff/libtiff/tif_codec.c	1
/src/libtiff/libtiff/tif_strip.c	7
/src/libtiff/libtiff/tif_tile.c	5
/src/libtiff/libtiff/tif_write.c	8
/src/libtiff/libtiff/tif_close.c	3
/src/libtiff/libtiff/tif_flush.c	3
/src/libtiff/libtiff/tif_dirwrite.c	69

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
OJPEGPreDecode	/src/libtiff/libtiff/tif_ojpeg.c	2	['N/A', 'short']	16	0	371	52	20	165	0	1464	1055
JPEGPreEncode	/src/libtiff/libtiff/tif_jpeg.c	2	['N/A', 'short']	9	0	475	67	24	96	0	862	672
encode_mcu_huff	/src/libjpeg-turbo/src/jchuff.c	2	['N/A', 'N/A']	3	0	228	33	14	5	0	592	592
PixarLogEncode	/src/libtiff/libtiff/tif_pixarlog.c	4	['N/A', 'N/A', 'size_t', 'short']	6	0	350	44	9	54	0	585	498
PixarLogDecode	/src/libtiff/libtiff/tif_pixarlog.c	4	['N/A', 'N/A', 'size_t', 'short']	4	0	627	72	18	25	0	435	379
read_markers	/src/libjpeg-turbo/src/jdmarker.c	1	['N/A']	2	0	830	187	34	12	0	245	241
Fax3Decode2D	/src/libtiff/libtiff/tif_fax3.c	4	['N/A', 'N/A', 'size_t', 'short']	2	0	5618	860	211	8	0	247	231
_TIFFVSetField	/src/libtiff/libtiff/tif_dir.c	3	['N/A', 'int', 'N/A']	6	0	4362	611	182	37	0	398	219
decode_mcu	/src/libjpeg-turbo/src/jdhuff.c	2	['N/A', 'N/A']	3	0	135	30	13	5	0	183	183
gtTileSeparate	/src/libtiff/libtiff/tif_getimage.c	4	['N/A', 'N/A', 'int', 'int']	16	0	865	120	41	88	0	755	138

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

Functions statically reachable by fuzzers

653 / 1588

Cyclomatic complexity statically reachable by fuzzers

7670 / 14507

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.

/src/libtiff/contrib/oss-fuzz/tiff_decode_fuzzer.cc

Dictionary

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

/src/libtiff/contrib/oss-fuzz/tiff_read_rgba_fuzzer.cc

Dictionary

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

/src/libtiff/contrib/oss-fuzz/tiff_packbits_fuzzer.cc

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=['TIFFStripSize', 'TIFFReadDirEntryLong8ArrayWithLimit', 'TIFFFetchNormalTag', 'EvaluateIFDdatasizeReading', 'TIFFReadDirectory', 'TIFFReadDirEntryArrayWithLimit', 'TIFFGetStrileByteCountWithErr', 'TIFFFetchDirectory', 'TIFFFetchStripThing']

/src/libtiff/contrib/oss-fuzz/write_fuzzer.cc

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=['TIFFFreeDirectory', 'TIFFWriteDirectorySec', '_TIFFFillStriles', '_TIFFStrileSize64', 'TIFFSetupStrips', 'TIFFAppendToStrip', '_TIFFCheckDirNumberAndOffset', 'WriteAsLong4', 'TIFFFieldWithTag']

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
TIFFCleanup	52	26	50.0%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
_TIFFVSetField	804	70	8.706%	['tiff_packbits_fuzzer', 'write_fuzzer']
_TIFFCheckFieldIsValidForCodec	110	6	5.454%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFReadDirectory	681	239	35.09%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
_TIFFCheckDirNumberAndOffset	126	34	26.98%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFReadDirEntryShort	84	10	11.90%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
EvaluateIFDdatasizeReading	47	8	17.02%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFReadDirEntryArrayWithLimit	101	36	35.64%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
CalcFinalIFDdatasizeReading	51	3	5.882%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFFetchDirectory	269	67	24.90%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFFetchNormalTag	1388	46	3.314%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFReadDirEntryLong	83	11	13.25%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFReadDirEntryLong8ArrayWithLimit	174	49	28.16%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFFetchStripThing	63	10	15.87%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
_TIFFGetStrileOffsetOrByteCountValue	50	10	20.0%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFHashSetInsert	37	15	40.54%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
_TIFFreallocExt	37	5	13.51%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFClientOpenExt	337	130	38.57%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFReadEncodedStrip	33	15	45.45%	['tiff_packbits_fuzzer', 'tiff_decode_fuzzer']
TIFFFillStrip	136	39	28.67%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer']
TIFFReadAndRealloc	81	35	43.20%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer']
_TIFFStrileSize64	58	15	25.86%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFScanlineSize64	68	26	38.23%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
_TIFFFillStrilesInternal	35	5	14.28%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFRewriteDirectorySec	138	4	2.898%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFWriteDirectorySec	876	239	27.28%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFLinkDirectory	199	22	11.05%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']
TIFFWriteEncodedStrip	72	29	40.27%	['write_fuzzer']
TIFFWriteCheck	53	20	37.73%	['write_fuzzer']
TIFFAppendToStrip	133	35	26.31%	['tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'tiff_decode_fuzzer', 'write_fuzzer']

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/libjpeg-turbo/src/wrapper/../jidctflt.c	[]	[]
/src/libjpeg-turbo/src/jcinit.c	[]	[]
/src/libtiff/libtiff/tif_fax3.c	[]	[]
/src/libtiff/libtiff/tif_color.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer']	[]
/src/libjpeg-turbo/src/wrapper/../jquant2.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdcoefct.c	[]	[]
/src/libtiff/libtiff/tif_dumpmode.c	[]	[]
/src/libjpeg-turbo/src/jchuff.c	[]	[]
/src/libjpeg-turbo/src/jerror.c	['tiff_read_rgba_fuzzer']	[]
/src/libtiff/libtiff/tif_write.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['write_fuzzer']
/src/libjpeg-turbo/src/jmemmgr.c	['tiff_read_rgba_fuzzer']	[]
/src/libjpeg-turbo/src/wrapper/../jddctmgr.c	[]	[]
/src/libjpeg-turbo/src/jfdctflt.c	[]	[]
/src/libtiff/libtiff/tif_dirread.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libtiff/libtiff/tif_tile.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	[]
/src/libjpeg-turbo/src/jcapimin.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdapistd.c	[]	[]
/src/libjpeg-turbo/src/jdinput.c	['tiff_read_rgba_fuzzer']	[]
/src/zlib/crc32.c	[]	[]
/src/libtiff/libtiff/tif_codec.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	[]
/src/libjpeg-turbo/src/wrapper/../jfdctint.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jcprepct.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jddiffct.c	[]	[]
/src/libjpeg-turbo/src/jdapimin.c	['tiff_read_rgba_fuzzer']	[]
/src/libjpeg-turbo/src/wrapper/../jdlossls.c	[]	[]
/src/zlib/deflate.c	[]	[]
/src/libjpeg-turbo/src/jcarith.c	[]	[]
/src/libtiff/libtiff/tif_thunder.c	[]	[]
/src/libjpeg-turbo/src/jdlhuff.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jutils.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdsample.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdmainct.c	[]	[]
/src/libtiff/libtiff/tif_lzw.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdmainct.h	[]	[]
/src/libjpeg-turbo/simd/jsimd.c	[]	[]
/src/libtiff/libtiff/tif_dirinfo.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libjpeg-turbo/src/wrapper/../jcmainct.c	[]	[]
/src/libtiff/libtiff/tif_read.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer']	['tiff_packbits_fuzzer']
/src/libtiff/libtiff/tif_luv.c	[]	[]
/src/zlib/inffast.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jcdctmgr.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdpostct.c	[]	[]
/src/libtiff/libtiff/tif_stream.cxx	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer']	[]
/src/zlib/inflate.c	[]	[]
/src/libjpeg-turbo/src/jmemnobs.c	['tiff_read_rgba_fuzzer']	[]
/src/libtiff/libtiff/tif_lzma.c	[]	[]
/src/libjpeg-turbo/src/jclhuff.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jfdctfst.c	[]	[]
/src/libtiff/contrib/oss-fuzz/tiff_packbits_fuzzer.cc	['tiff_packbits_fuzzer']	['tiff_packbits_fuzzer']
/src/libjpeg-turbo/src/wrapper/../jcdiffct.c	[]	[]
/src/libjpeg-turbo/src/jcparam.c	[]	[]
/src/libtiff/libtiff/tif_ojpeg.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdcolext.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jquant1.c	[]	[]
/src/libtiff/contrib/oss-fuzz/write_fuzzer.cc	['write_fuzzer']	['write_fuzzer']
/src/libjpeg-turbo/src/jdmarker.c	['tiff_read_rgba_fuzzer']	[]
/src/libjpeg-turbo/src/wrapper/../jdcolor.c	[]	[]
/src/libjpeg-turbo/src/jcphuff.c	[]	[]
/src/libtiff/libtiff/tif_flush.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['write_fuzzer']
/src/libtiff/libtiff/tif_jpeg.c	['tiff_read_rgba_fuzzer']	[]
/src/libjpeg-turbo/src/jdmaster.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jcapistd.c	[]	[]
/src/libjpeg-turbo/src/jcmaster.c	[]	[]
/src/libtiff/libtiff/tif_next.c	[]	[]
/src/libtiff/libtiff/tif_swab.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	[]
/src/libjpeg-turbo/src/jcmarker.c	[]	[]
/src/zlib/trees.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdmerge.c	[]	[]
/src/libtiff/libtiff/tif_strip.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libtiff/libtiff/tif_pixarlog.c	[]	[]
/src/zlib/adler32.c	[]	[]
/src/libtiff/libtiff/tif_zip.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jclossls.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jccolext.c	[]	[]
/src/libtiff/libtiff/tif_warning.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer']
/src/libtiff/contrib/oss-fuzz/tiff_read_rgba_fuzzer.cc	['tiff_read_rgba_fuzzer']	[]
/src/zlib/inftrees.c	[]	[]
/src/libtiff/libtiff/tif_dir.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/zlib/zutil.c	[]	[]
/src/libtiff/libtiff/tif_predict.c	[]	[]
/src/libtiff/libtiff/tif_unix.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libjpeg-turbo/src/wrapper/../jidctint.c	[]	[]
/src/libtiff/libtiff/tif_open.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libtiff/libtiff/tif_jbig.c	[]	[]
/src/libtiff/libtiff/tif_getimage.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer']	[]
/src/libjpeg-turbo/src/wrapper/../jccolor.c	[]	[]
/src/libjpeg-turbo/src/jdhuff.c	[]	[]
/src/libjpeg-turbo/src/jdphuff.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jcsample.c	[]	[]
/src/libtiff/libtiff/tif_packbits.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jccoefct.c	[]	[]
/src/libtiff/libtiff/tif_close.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libjpeg-turbo/src/jstdhuff.c	[]	[]
/src/libjpeg-turbo/src/wrapper/../jdmrgext.c	[]	[]
/src/libjpeg-turbo/src/jdarith.c	[]	[]
/src/libtiff/libtiff/tif_dirwrite.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['write_fuzzer']
/src/libtiff/libtiff/tif_error.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libtiff/libtiff/tif_compress.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libtiff/libtiff/tif_aux.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libjpeg-turbo/src/wrapper/../jidctfst.c	[]	[]
/src/libtiff/libtiff/tif_hash_set.c	['tiff_decode_fuzzer', 'tiff_read_rgba_fuzzer', 'tiff_packbits_fuzzer', 'write_fuzzer']	['tiff_packbits_fuzzer', 'write_fuzzer']
/src/libtiff/contrib/oss-fuzz/tiff_decode_fuzzer.cc	['tiff_decode_fuzzer']	[]
/src/libjpeg-turbo/src/wrapper/../jidctred.c	[]	[]
/src/libjpeg-turbo/src/jcomapi.c	['tiff_read_rgba_fuzzer']	[]
/usr/local/bin/../include/c++/v1/stdexcept	[]	[]

Directories in report

Directory
/src/libjpeg-turbo/src/wrapper/../
/src/libtiff/contrib/oss-fuzz/
/src/libjpeg-turbo/src/
/src/zlib/
/src/libjpeg-turbo/simd/
/src/libtiff/libtiff/
/usr/local/bin/../include/c++/v1/