High level conclusions

Fuzzers reach 74.04% code coverage.

Fuzzers reach 16.23% of cyclomatic complexity.

Fuzzers reach 19.94% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

73 / 366

Cyclomatic complexity statically reachable by fuzzers

615 / 3789

Runtime code coverage of functions

271 / 366

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

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

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

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

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

Fuzzer: xml_parsebuffer_fuzzer_UTF-16LE

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	27	15.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.55%
lawngreen	50+	152	84.4%
All colors	180	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00061	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

275

Functions that are reachable but not covered

16

Reachable functions

84

Percentage of reachable functions covered

80.95%

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
fuzz/xml_parsebuffer_fuzzer.c	4
lib/xmlparse.c	54
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parsebuffer_fuzzer_UTF-16BE

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	27	15.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.55%
lawngreen	50+	152	84.4%
All colors	180	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00061	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

275

Functions that are reachable but not covered

16

Reachable functions

84

Percentage of reachable functions covered

80.95%

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
fuzz/xml_parsebuffer_fuzzer.c	4
lib/xmlparse.c	54
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parse_fuzzer_UTF-16

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	28	15.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.55%
lawngreen	50+	152	83.9%
All colors	181	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00059	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

276

Functions that are reachable but not covered

16

Reachable functions

85

Percentage of reachable functions covered

81.18%

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
fuzz/xml_parse_fuzzer.c	4
lib/xmlparse.c	55
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parsebuffer_fuzzer_US-ASCII

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	27	15.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.55%
lawngreen	50+	152	84.4%
All colors	180	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00061	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

273

Functions that are reachable but not covered

16

Reachable functions

84

Percentage of reachable functions covered

80.95%

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
fuzz/xml_parsebuffer_fuzzer.c	4
lib/xmlparse.c	54
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parse_fuzzer_UTF-16BE

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	28	15.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.55%
lawngreen	50+	152	83.9%
All colors	181	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00059	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

276

Functions that are reachable but not covered

16

Reachable functions

85

Percentage of reachable functions covered

81.18%

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
fuzz/xml_parse_fuzzer.c	4
lib/xmlparse.c	55
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parse_fuzzer_US-ASCII

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	28	15.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	1	0.55%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	152	83.9%
All colors	181	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00059	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

274

Functions that are reachable but not covered

16

Reachable functions

85

Percentage of reachable functions covered

81.18%

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
fuzz/xml_parse_fuzzer.c	4
lib/xmlparse.c	55
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parse_fuzzer_UTF-8

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	28	15.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	1	0.55%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	152	83.9%
All colors	181	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00059	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

274

Functions that are reachable but not covered

16

Reachable functions

85

Percentage of reachable functions covered

81.18%

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
fuzz/xml_parse_fuzzer.c	4
lib/xmlparse.c	55
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parsebuffer_fuzzer_ISO-8859-1

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	27	15.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	153	85.0%
All colors	180	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00061	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

275

Functions that are reachable but not covered

16

Reachable functions

84

Percentage of reachable functions covered

80.95%

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
fuzz/xml_parsebuffer_fuzzer.c	4
lib/xmlparse.c	54
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parsebuffer_fuzzer_UTF-16

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	27	15.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	153	85.0%
All colors	180	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00061	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

274

Functions that are reachable but not covered

16

Reachable functions

84

Percentage of reachable functions covered

80.95%

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
fuzz/xml_parsebuffer_fuzzer.c	4
lib/xmlparse.c	54
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parse_fuzzer_ISO-8859-1

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	28	15.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.55%
lawngreen	50+	152	83.9%
All colors	181	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00059	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

276

Functions that are reachable but not covered

16

Reachable functions

85

Percentage of reachable functions covered

81.18%

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
fuzz/xml_parse_fuzzer.c	4
lib/xmlparse.c	55
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parsebuffer_fuzzer_UTF-8

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	27	15.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.55%
lawngreen	50+	152	84.4%
All colors	180	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00061	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

273

Functions that are reachable but not covered

16

Reachable functions

84

Percentage of reachable functions covered

80.95%

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
fuzz/xml_parsebuffer_fuzzer.c	4
lib/xmlparse.c	54
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

Fuzzer: xml_parse_fuzzer_UTF-16LE

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	28	15.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	1	0.55%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	152	83.9%
All colors	181	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
489	489	1 : View List ['entityValueInitProcessor']	489	489	externalParEntInitProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:4493
272	286	2 : View List ['accountingReportStats', 'accountingReportDiff']	272	286	accountingDiffTolerated	call site: 00000	/src/expat/expat/lib/xmlparse.c:7913
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3078
162	4090	15 : View List ['memcmp', 'poolClear', 'reportDefault', 'lookup', 'freeBindings', 'doCdataSection', 'reportProcessingInstruction', 'XmlUtf8Encode', 'reportComment', 'poolStoreString', 'accountingOnAbort', 'getContext', 'processInternalEntity', 'storeAtts', 'accountingDiffTolerated']	162	4804	doContent	call site: 00000	/src/expat/expat/lib/xmlparse.c:3139
50	50	1 : View List ['generate_hash_secret_salt']	50	310	startParsing	call site: 00059	/src/expat/expat/lib/xmlparse.c:1044
8	8	2 : View List ['__errno_location', 'strtoul']	8	8	getDebugLevel	call site: 00021	/src/expat/expat/lib/xmlparse.c:8526
6	6	1 : View List ['reportDefault']	6	6	epilogProcessor	call site: 00000	/src/expat/expat/lib/xmlparse.c:5764
6	6	1 : View List ['reportDefault']	6	6	doIgnoreSection	call site: 00000	/src/expat/expat/lib/xmlparse.c:4273
6	6	1 : View List ['reportDefault']	6	6	reportProcessingInstruction	call site: 00000	/src/expat/expat/lib/xmlparse.c:6423
6	6	1 : View List ['reportDefault']	6	6	reportComment	call site: 00000	/src/expat/expat/lib/xmlparse.c:6448
2	2	1 : View List ['XmlSizeOfUnknownEncoding']	2	2	handleUnknownEncoding	call site: 00000	/src/expat/expat/lib/xmlparse.c:4438
0	1493	1 : View List ['doProlog']	0	1506	processInternalEntity	call site: 00000	/src/expat/expat/lib/xmlparse.c:5850

Runtime coverage analysis

Covered functions

276

Functions that are reachable but not covered

16

Reachable functions

85

Percentage of reachable functions covered

81.18%

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
fuzz/xml_parse_fuzzer.c	4
lib/xmlparse.c	55
lib/xmlrole.c	2
lib/xmltok_ns.c	3
lib/xmltok.c	2
lib/siphash.h	6

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
doProlog	/src/expat/expat/lib/xmlparse.c	10	['N/A', 'N/A', 'N/A', 'N/A', 'int', 'N/A', 'N/A', 'char', 'char', 'int']	8	0	4535	627	204	63	15	1493	1258
normal_contentTok	/src/expat/expat/lib/xmltok_impl.c	4	['N/A', 'N/A', 'N/A', 'N/A']	3	0	571	86	24	10	0	241	241
big2_contentTok	/src/expat/expat/lib/xmltok_impl.c	4	['N/A', 'N/A', 'N/A', 'N/A']	6	0	629	97	27	11	0	188	188
little2_contentTok	/src/expat/expat/lib/xmltok_impl.c	4	['N/A', 'N/A', 'N/A', 'N/A']	6	0	626	97	27	11	0	188	170
normal_prologTok	/src/expat/expat/lib/xmltok_impl.c	4	['N/A', 'N/A', 'N/A', 'N/A']	2	0	1335	206	40	7	0	155	91
XmlParseXmlDeclNS	/src/expat/expat/lib/xmltok_ns.c	10	['int', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A']	3	0	52	3	2	7	0	84	72
big2_prologTok	/src/expat/expat/lib/xmltok_impl.c	4	['N/A', 'N/A', 'N/A', 'N/A']	3	0	1299	194	33	8	0	130	70
little2_prologTok	/src/expat/expat/lib/xmltok_impl.c	4	['N/A', 'N/A', 'N/A', 'N/A']	3	0	1293	194	33	8	0	130	70

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

Functions statically reachable by fuzzers

170 / 366

Cyclomatic complexity statically reachable by fuzzers

2569 / 3789

All functions overview

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

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

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.

fuzz/xml_parsebuffer_fuzzer.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=['XML_ParseBuffer', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parsebuffer_fuzzer.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=['XML_ParseBuffer', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parse_fuzzer.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=['XML_Parse', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parsebuffer_fuzzer.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=['XML_ParseBuffer', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parse_fuzzer.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=['XML_Parse', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parse_fuzzer.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=['XML_Parse', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parse_fuzzer.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=['XML_Parse', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parsebuffer_fuzzer.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=['XML_ParseBuffer', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parsebuffer_fuzzer.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=['XML_ParseBuffer', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parse_fuzzer.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=['XML_Parse', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parsebuffer_fuzzer.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=['XML_ParseBuffer', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

fuzz/xml_parse_fuzzer.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=['XML_Parse', 'getDebugLevel', 'parserInit', 'LLVMFuzzerTestOneInput', 'dtdCopy', 'copyEntityTable', 'XML_ExternalEntityParserCreate']

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
handleUnknownEncoding	32	4	12.5%	[]
is_rfc3986_uri_char	92	16	17.39%	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']

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/expat/expat/lib/siphash.h	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']
	[]	[]
/src/expat/expat/fuzz/xml_parse_fuzzer.c	['xml_parse_fuzzer_UTF-16', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parse_fuzzer_UTF-16LE']	['xml_parse_fuzzer_UTF-16', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parse_fuzzer_UTF-16LE']
/src/expat/expat/lib/xmltok.c	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']
/src/expat/expat/lib/xmlrole.c	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']
/src/expat/expat/fuzz/xml_parsebuffer_fuzzer.c	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_UTF-8']	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_UTF-8']
/src/expat/expat/lib/xmltok_ns.c	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']
/src/expat/expat/lib/xmltok_impl.c	[]	[]
/src/expat/expat/lib/xmlparse.c	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']	['xml_parsebuffer_fuzzer_UTF-16LE', 'xml_parsebuffer_fuzzer_UTF-16BE', 'xml_parse_fuzzer_UTF-16', 'xml_parsebuffer_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-16BE', 'xml_parse_fuzzer_US-ASCII', 'xml_parse_fuzzer_UTF-8', 'xml_parsebuffer_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-16', 'xml_parse_fuzzer_ISO-8859-1', 'xml_parsebuffer_fuzzer_UTF-8', 'xml_parse_fuzzer_UTF-16LE']

Directories in report

Directory
/src/expat/expat/fuzz/
/src/expat/expat/lib/