Fuzz introspector: fuzz_jinja_compile_templates
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
16 361 jinja2.environment.Environment.compile call site: {node_id} jinja2.environment.Environment.compile_templates.write_file
13 32 ...fuzz_jinja_compile_templates.TestOneInput call site: {node_id} jinja2.environment.Environment.compile
8 21 jinja2.environment.Environment.__init__ call site: {node_id} jinja2.utils.import_string
3 56 jinja2.environment.Environment._tokenize call site: {node_id} jinja2.lexer.TokenStream.__init__
2 327 jinja2.parser.Parser._fail_ut_eof call site: {node_id} .map
1 51 jinja2.environment.Environment.preprocess call site: {node_id} jinja2.environment.Environment.iter_extensions
1 54 jinja2.environment.Environment.iter_extensions call site: {node_id} .str
1 154 jinja2.parser.Parser.parse_subscript call site: {node_id} jinja2.parser.Parser.fail
1 166 jinja2.parser.Parser.parse_call_args call site: {node_id} jinja2.lexer.TokenStream.look
1 197 jinja2.parser.Parser.parse_test call site: {node_id} jinja2.lexer.Token.test_any
1 267 jinja2.parser.Parser.parse_tuple call site: {node_id} jinja2.lexer.describe_token
1 293 jinja2.parser.Parser.parse_assign_target call site: {node_id} jinja2.parser.Parser.parse_primary

Fuzzer calltree

0 ...fuzz_jinja_compile_templates.TestOneInput [function] [call site] 00000
1 atheris.FuzzedDataProvider [function] [call site] 00001
1 fdp.ConsumeString [function] [call site] 00002
1 os.path.join [function] [call site] 00003
1 os.path.isdir [function] [call site] 00004
1 os.mkdir [function] [call site] 00005
1 os.path.isfile [function] [call site] 00006
1 os.remove [function] [call site] 00007
1 .open [function] [call site] 00008
1 fd.write [function] [call site] 00009
1 jinja2.loaders.DictLoader.__init__ [function] [call site] 00010
1 jinja2.environment.Environment.__init__ [function] [call site] 00011
2 DEFAULT_FILTERS.copy [function] [call site] 00012
2 DEFAULT_TESTS.copy [function] [call site] 00013
2 DEFAULT_NAMESPACE.copy [function] [call site] 00014
2 jinja2.environment.create_cache [function] [call site] 00015
3 jinja2.utils.LRUCache.__init__ [function] [call site] 00016
4 collections.deque [function] [call site] 00017
4 jinja2.utils.LRUCache._postinit [function] [call site] 00018
5 threading.Lock [function] [call site] 00019
2 DEFAULT_POLICIES.copy [function] [call site] 00020
2 jinja2.environment.load_extensions [function] [call site] 00021
3 .isinstance [function] [call site] 00022
3 jinja2.utils.import_string [function] [call site] 00023
4 import_name.split [function] [call site] 00024
4 import_name.rpartition [function] [call site] 00025
4 .__import__ [function] [call site] 00026
4 .__import__ [function] [call site] 00027
4 .getattr [function] [call site] 00028
3 typing.cast [function] [call site] 00029
2 jinja2.environment._environment_config_check [function] [call site] 00030
3 .issubclass [function] [call site] 00031
1 jinja2.environment.Environment.compile_templates [function] [call site] 00032
2 zipfile.ZipFile [function] [call site] 00033
2 .dict [function] [call site] 00034
2 jinja2.environment.Environment.compile_templates.log_function [function] [call site] 00035
2 os.path.isdir [function] [call site] 00036
2 os.makedirs [function] [call site] 00037
2 jinja2.environment.Environment.compile_templates.log_function [function] [call site] 00038
2 jinja2.environment.Environment.list_templates [function] [call site] 00039
3 jinja2.loaders.DictLoader.list_templates [function] [call site] 00040
4 .sorted [function] [call site] 00041
3 jinja2.environment.Environment.list_templates.filter_func [function] [call site] 00042
4 x.rsplit [function] [call site] 00043
2 jinja2.loaders.DictLoader.get_source [function] [call site] 00044
2 jinja2.environment.Environment.compile [function] [call site] 00045
3 .isinstance [function] [call site] 00046
3 jinja2.environment.Environment._parse [function] [call site] 00047
4 jinja2.parser.Parser.__init__ [function] [call site] 00048
5 jinja2.environment.Environment._tokenize [function] [call site] 00049
6 jinja2.environment.Environment.preprocess [function] [call site] 00050
7 functools.reduce [function] [call site] 00051
7 jinja2.environment.Environment.iter_extensions [function] [call site] 00052
8 .sorted [function] [call site] 00053
8 .iter [function] [call site] 00054
7 .str [function] [call site] 00055
6 jinja2.environment.Environment.iter_extensions [function] [call site] 00056
6 ext.filter_stream [function] [call site] 00057
6 .isinstance [function] [call site] 00058
6 jinja2.lexer.TokenStream.__init__ [function] [call site] 00059
7 .iter [function] [call site] 00060
7 collections.deque [function] [call site] 00061
7 typing.NamedTuple.__init__ [function] [call site] 00062
7 .next [function] [call site] 00063
5 jinja2.environment.Environment.iter_extensions [function] [call site] 00064
4 jinja2.parser.Parser.parse [function] [call site] 00065
5 jinja2.parser.Parser.subparse [function] [call site] 00066
6 jinja2.nodes.Node.__init__ [function] [call site] 00067
7 .len [function] [call site] 00068
7 .len [function] [call site] 00069
7 .zip [function] [call site] 00070
7 .setattr [function] [call site] 00071
7 attributes.pop [function] [call site] 00072
7 .setattr [function] [call site] 00073
6 .next [function] [call site] 00074
6 .next [function] [call site] 00075
6 jinja2.parser.Parser.parse_tuple [function] [call site] 00076
7 jinja2.lexer.TokenStream.expect [function] [call site] 00077
8 jinja2.lexer.Token.test [function] [call site] 00078
9 expr.split [function] [call site] 00079
8 jinja2.lexer.describe_token_expr [function] [call site] 00080
9 expr.split [function] [call site] 00081
9 jinja2.lexer._describe_token_type [function] [call site] 00082
8 .next [function] [call site] 00083
7 jinja2.parser.Parser.is_tuple_end [function] [call site] 00084
8 jinja2.lexer.Token.test_any [function] [call site] 00085
9 jinja2.lexer.Token.test [function] [call site] 00086
9 .any [function] [call site] 00087
7 jinja2.parser.Parser.parse_primary [function] [call site] 00088
8 jinja2.nodes.Node.__init__ [function] [call site] 00089
8 jinja2.nodes.Node.__init__ [function] [call site] 00090
8 jinja2.nodes.Node.__init__ [function] [call site] 00091
8 .next [function] [call site] 00092
8 .next [function] [call site] 00093
8 buf.append [function] [call site] 00094
8 .next [function] [call site] 00095
8 jinja2.nodes.Node.__init__ [function] [call site] 00096
8 .next [function] [call site] 00097
8 jinja2.nodes.Node.__init__ [function] [call site] 00098
8 .next [function] [call site] 00099
8 jinja2.parser.Parser.parse_tuple [function] [call site] 00100
8 jinja2.lexer.TokenStream.expect [function] [call site] 00101
8 jinja2.parser.Parser.parse_list [function] [call site] 00102
9 jinja2.lexer.TokenStream.expect [function] [call site] 00103
9 jinja2.lexer.TokenStream.expect [function] [call site] 00104
9 jinja2.parser.Parser.parse_expression [function] [call site] 00105
10 jinja2.parser.Parser.parse_condexpr [function] [call site] 00106
11 jinja2.parser.Parser.parse_or [function] [call site] 00107
12 jinja2.parser.Parser.parse_and [function] [call site] 00108
13 jinja2.parser.Parser.parse_not [function] [call site] 00109
14 jinja2.lexer.Token.test [function] [call site] 00110
14 .next [function] [call site] 00111
14 jinja2.parser.Parser.parse_not [function] [call site] 00112
14 jinja2.nodes.Node.__init__ [function] [call site] 00113
14 jinja2.parser.Parser.parse_compare [function] [call site] 00114
15 jinja2.parser.Parser.parse_math1 [function] [call site] 00115
16 jinja2.parser.Parser.parse_concat [function] [call site] 00116
17 jinja2.parser.Parser.parse_math2 [function] [call site] 00117
18 jinja2.parser.Parser.parse_pow [function] [call site] 00118
19 jinja2.parser.Parser.parse_unary [function] [call site] 00119
20 .next [function] [call site] 00120
20 jinja2.parser.Parser.parse_unary [function] [call site] 00121
20 jinja2.nodes.Node.__init__ [function] [call site] 00122
20 .next [function] [call site] 00123
20 jinja2.parser.Parser.parse_unary [function] [call site] 00124
20 jinja2.nodes.Node.__init__ [function] [call site] 00125
20 jinja2.parser.Parser.parse_primary [function] [call site] 00126
20 jinja2.parser.Parser.parse_postfix [function] [call site] 00127
21 jinja2.parser.Parser.parse_subscript [function] [call site] 00128
22 .next [function] [call site] 00129
22 .next [function] [call site] 00130
22 jinja2.nodes.Node.__init__ [function] [call site] 00131
22 jinja2.parser.Parser.fail [function] [call site] 00132
22 jinja2.nodes.Node.__init__ [function] [call site] 00133
22 jinja2.nodes.Node.__init__ [function] [call site] 00134
22 jinja2.lexer.TokenStream.expect [function] [call site] 00135
22 jinja2.parser.Parser.parse_subscribed [function] [call site] 00136
23 .next [function] [call site] 00137
23 jinja2.parser.Parser.parse_expression [function] [call site] 00138
23 .next [function] [call site] 00139
23 args.append [function] [call site] 00140
23 jinja2.parser.Parser.parse_expression [function] [call site] 00141
23 args.append [function] [call site] 00142
23 args.append [function] [call site] 00143
23 .next [function] [call site] 00144
23 jinja2.parser.Parser.parse_expression [function] [call site] 00145
23 args.append [function] [call site] 00146
23 args.append [function] [call site] 00147
23 args.append [function] [call site] 00148
23 jinja2.nodes.Node.__init__ [function] [call site] 00149
22 args.append [function] [call site] 00150
22 jinja2.lexer.TokenStream.expect [function] [call site] 00151
22 .len [function] [call site] 00152
22 jinja2.nodes.Node.__init__ [function] [call site] 00153
22 jinja2.nodes.Node.__init__ [function] [call site] 00154
22 jinja2.parser.Parser.fail [function] [call site] 00155
21 jinja2.parser.Parser.parse_call [function] [call site] 00156
22 jinja2.parser.Parser.parse_call_args [function] [call site] 00157
23 jinja2.lexer.TokenStream.expect [function] [call site] 00158
23 jinja2.lexer.TokenStream.expect [function] [call site] 00159
23 jinja2.parser.Parser.parse_call_args.ensure [function] [call site] 00160
24 jinja2.parser.Parser.fail [function] [call site] 00161
23 .next [function] [call site] 00162
23 jinja2.parser.Parser.parse_expression [function] [call site] 00163
23 jinja2.parser.Parser.parse_call_args.ensure [function] [call site] 00164
23 .next [function] [call site] 00165
23 jinja2.parser.Parser.parse_expression [function] [call site] 00166
23 jinja2.lexer.TokenStream.look [function] [call site] 00167
24 .next [function] [call site] 00168
24 jinja2.lexer.TokenStream.push [function] [call site] 00169
23 jinja2.parser.Parser.parse_call_args.ensure [function] [call site] 00170
23 jinja2.lexer.TokenStream.skip [function] [call site] 00171
24 .range [function] [call site] 00172
24 .next [function] [call site] 00173
23 jinja2.parser.Parser.parse_expression [function] [call site] 00174
23 jinja2.nodes.Node.__init__ [function] [call site] 00175
23 kwargs.append [function] [call site] 00176
23 jinja2.parser.Parser.parse_call_args.ensure [function] [call site] 00177
23 jinja2.parser.Parser.parse_expression [function] [call site] 00178
23 args.append [function] [call site] 00179
23 jinja2.lexer.TokenStream.expect [function] [call site] 00180
22 jinja2.nodes.Node.__init__ [function] [call site] 00181
20 jinja2.parser.Parser.parse_filter_expr [function] [call site] 00182
21 jinja2.parser.Parser.parse_filter [function] [call site] 00183
22 .next [function] [call site] 00184
22 jinja2.lexer.TokenStream.expect [function] [call site] 00185
22 .next [function] [call site] 00186
22 jinja2.lexer.TokenStream.expect [function] [call site] 00187
22 jinja2.parser.Parser.parse_call_args [function] [call site] 00188
22 jinja2.nodes.Node.__init__ [function] [call site] 00189
21 jinja2.parser.Parser.parse_test [function] [call site] 00190
22 .next [function] [call site] 00191
22 jinja2.lexer.Token.test [function] [call site] 00192
22 .next [function] [call site] 00193
22 jinja2.lexer.TokenStream.expect [function] [call site] 00194
22 .next [function] [call site] 00195
22 jinja2.lexer.TokenStream.expect [function] [call site] 00196
22 jinja2.parser.Parser.parse_call_args [function] [call site] 00197
22 jinja2.lexer.Token.test_any [function] [call site] 00198
22 jinja2.lexer.Token.test [function] [call site] 00199
22 jinja2.parser.Parser.fail [function] [call site] 00200
22 jinja2.parser.Parser.parse_primary [function] [call site] 00201
22 jinja2.parser.Parser.parse_postfix [function] [call site] 00202
22 jinja2.nodes.Node.__init__ [function] [call site] 00203
22 jinja2.nodes.Node.__init__ [function] [call site] 00204
21 jinja2.parser.Parser.parse_call [function] [call site] 00205
19 .next [function] [call site] 00206
19 jinja2.parser.Parser.parse_unary [function] [call site] 00207
19 jinja2.nodes.Node.__init__ [function] [call site] 00208
18 .next [function] [call site] 00209
18 jinja2.parser.Parser.parse_pow [function] [call site] 00210
17 .next [function] [call site] 00211
17 jinja2.parser.Parser.parse_math2 [function] [call site] 00212
17 args.append [function] [call site] 00213
17 .len [function] [call site] 00214
17 jinja2.nodes.Node.__init__ [function] [call site] 00215
16 .next [function] [call site] 00216
16 jinja2.parser.Parser.parse_concat [function] [call site] 00217
15 .next [function] [call site] 00218
15 jinja2.parser.Parser.parse_math1 [function] [call site] 00219
15 jinja2.nodes.Node.__init__ [function] [call site] 00220
15 ops.append [function] [call site] 00221
15 jinja2.lexer.TokenStream.skip_if [function] [call site] 00222
16 jinja2.lexer.TokenStream.next_if [function] [call site] 00223
17 jinja2.lexer.Token.test [function] [call site] 00224
17 .next [function] [call site] 00225
15 jinja2.parser.Parser.parse_math1 [function] [call site] 00226
15 jinja2.nodes.Node.__init__ [function] [call site] 00227
15 ops.append [function] [call site] 00228
15 jinja2.lexer.Token.test [function] [call site] 00229
15 jinja2.lexer.TokenStream.look [function] [call site] 00230
15 jinja2.lexer.Token.test [function] [call site] 00231
15 jinja2.lexer.TokenStream.skip [function] [call site] 00232
15 jinja2.parser.Parser.parse_math1 [function] [call site] 00233
15 jinja2.nodes.Node.__init__ [function] [call site] 00234
15 ops.append [function] [call site] 00235
15 jinja2.nodes.Node.__init__ [function] [call site] 00236
13 jinja2.lexer.TokenStream.skip_if [function] [call site] 00237
13 jinja2.parser.Parser.parse_not [function] [call site] 00238
13 jinja2.nodes.Node.__init__ [function] [call site] 00239
12 jinja2.lexer.TokenStream.skip_if [function] [call site] 00240
12 jinja2.parser.Parser.parse_and [function] [call site] 00241
12 jinja2.nodes.Node.__init__ [function] [call site] 00242
11 jinja2.lexer.TokenStream.skip_if [function] [call site] 00243
11 jinja2.parser.Parser.parse_or [function] [call site] 00244
11 jinja2.lexer.TokenStream.skip_if [function] [call site] 00245
11 jinja2.parser.Parser.parse_condexpr [function] [call site] 00246
11 jinja2.nodes.Node.__init__ [function] [call site] 00247
10 jinja2.parser.Parser.parse_or [function] [call site] 00248
9 items.append [function] [call site] 00249
9 jinja2.lexer.TokenStream.expect [function] [call site] 00250
9 jinja2.nodes.Node.__init__ [function] [call site] 00251
8 jinja2.parser.Parser.parse_dict [function] [call site] 00252
9 jinja2.lexer.TokenStream.expect [function] [call site] 00253
9 jinja2.lexer.TokenStream.expect [function] [call site] 00254
9 jinja2.parser.Parser.parse_expression [function] [call site] 00255
9 jinja2.lexer.TokenStream.expect [function] [call site] 00256
9 jinja2.parser.Parser.parse_expression [function] [call site] 00257
9 jinja2.nodes.Node.__init__ [function] [call site] 00258
9 items.append [function] [call site] 00259
9 jinja2.lexer.TokenStream.expect [function] [call site] 00260
9 jinja2.nodes.Node.__init__ [function] [call site] 00261
8 jinja2.lexer.describe_token [function] [call site] 00262
9 jinja2.lexer._describe_token_type [function] [call site] 00263
8 jinja2.parser.Parser.fail [function] [call site] 00264
7 jinja2.parser.Parser.parse_expression [function] [call site] 00265
7 args.append [function] [call site] 00266
7 jinja2.parser.Parser.fail [function] [call site] 00267
7 jinja2.lexer.describe_token [function] [call site] 00268
7 jinja2.nodes.Node.__init__ [function] [call site] 00269
6 jinja2.lexer.TokenStream.expect [function] [call site] 00270
6 jinja2.parser.Parser.subparse.flush_data [function] [call site] 00271
7 jinja2.nodes.Node.__init__ [function] [call site] 00272
7 body.append [function] [call site] 00273
6 .next [function] [call site] 00274
6 jinja2.lexer.Token.test_any [function] [call site] 00275
6 jinja2.parser.Parser.parse_statement [function] [call site] 00276
7 jinja2.parser.Parser.fail [function] [call site] 00277
7 .getattr [function] [call site] 00278
7 jinja2.parser.Parser.parse_call_block [function] [call site] 00279
8 .next [function] [call site] 00280
8 jinja2.nodes.Node.__init__ [function] [call site] 00281
8 jinja2.parser.Parser.parse_signature [function] [call site] 00282
9 jinja2.lexer.TokenStream.expect [function] [call site] 00283
9 jinja2.lexer.TokenStream.expect [function] [call site] 00284
9 jinja2.parser.Parser.parse_assign_target [function] [call site] 00285
10 jinja2.lexer.TokenStream.look [function] [call site] 00286
10 jinja2.lexer.TokenStream.expect [function] [call site] 00287
10 .next [function] [call site] 00288
10 jinja2.lexer.TokenStream.expect [function] [call site] 00289
10 jinja2.nodes.Node.__init__ [function] [call site] 00290
10 jinja2.lexer.TokenStream.expect [function] [call site] 00291
10 jinja2.nodes.Node.__init__ [function] [call site] 00292
10 jinja2.parser.Parser.parse_tuple [function] [call site] 00293
10 jinja2.parser.Parser.parse_primary [function] [call site] 00294
10 jinja2.nodes.Node.set_ctx [function] [call site] 00295
11 collections.deque [function] [call site] 00296
11 collections.deque.popleft [function] [call site] 00297
11 node.iter_child_nodes [function] [call site] 00298
11 collections.deque.extend [function] [call site] 00299
10 jinja2.nodes.Tuple.can_assign [function] [call site] 00300
11 item.can_assign [function] [call site] 00301
10 jinja2.nodes.Name.can_assign [function] [call site] 00302
10 jinja2.nodes.Expr.can_assign [function] [call site] 00303
10 jinja2.nodes.NSRef.can_assign [function] [call site] 00304
10 jinja2.parser.Parser.fail [function] [call site] 00305
10 .type [function] [call site] 00306
9 jinja2.nodes.Node.set_ctx [function] [call site] 00307
9 jinja2.lexer.TokenStream.skip_if [function] [call site] 00308
9 jinja2.parser.Parser.parse_expression [function] [call site] 00309
9 defaults.append [function] [call site] 00310
9 jinja2.parser.Parser.fail [function] [call site] 00311
9 args.append [function] [call site] 00312
9 jinja2.lexer.TokenStream.expect [function] [call site] 00313
8 jinja2.parser.Parser.parse_expression [function] [call site] 00314
8 .isinstance [function] [call site] 00315
8 jinja2.parser.Parser.fail [function] [call site] 00316
8 jinja2.parser.Parser.parse_statements [function] [call site] 00317
9 jinja2.lexer.TokenStream.skip_if [function] [call site] 00318
9 jinja2.lexer.TokenStream.expect [function] [call site] 00319
9 jinja2.parser.Parser.subparse [function] [call site] 00320
9 jinja2.parser.Parser.fail_eof [function] [call site] 00321
10 .list [function] [call site] 00322
10 stack.append [function] [call site] 00323
10 jinja2.parser.Parser._fail_ut_eof [function] [call site] 00324
11 .set [function] [call site] 00325
11 .map [function] [call site] 00326
11 expected.update [function] [call site] 00327
11 .map [function] [call site] 00328
11 .map [function] [call site] 00329
11 message.append [function] [call site] 00330
11 message.append [function] [call site] 00331
11 message.append [function] [call site] 00332
11 jinja2.parser.Parser.fail [function] [call site] 00333
9 .next [function] [call site] 00334
7 jinja2.parser.Parser.parse_filter_block [function] [call site] 00335
8 .next [function] [call site] 00336
8 jinja2.nodes.Node.__init__ [function] [call site] 00337
8 jinja2.parser.Parser.parse_filter [function] [call site] 00338
8 jinja2.parser.Parser.parse_statements [function] [call site] 00339
7 jinja2.parser.Parser.fail_unknown_tag [function] [call site] 00340
8 jinja2.parser.Parser._fail_ut_eof [function] [call site] 00341
6 .isinstance [function] [call site] 00342
6 body.extend [function] [call site] 00343
6 body.append [function] [call site] 00344
6 jinja2.lexer.TokenStream.expect [function] [call site] 00345
6 jinja2.parser.Parser.subparse.flush_data [function] [call site] 00346
5 jinja2.nodes.Node.__init__ [function] [call site] 00347
5 jinja2.nodes.Node.set_environment [function] [call site] 00348
6 collections.deque [function] [call site] 00349
6 collections.deque.popleft [function] [call site] 00350
6 node.iter_child_nodes [function] [call site] 00351
6 collections.deque.extend [function] [call site] 00352
3 jinja2.environment.Environment._generate [function] [call site] 00353
4 jinja2.compiler.generate [function] [call site] 00354
5 .isinstance [function] [call site] 00355
5 environment.code_generator_class [function] [call site] 00356
5 generator.visit [function] [call site] 00357
5 generator.stream.getvalue [function] [call site] 00358
3 jinja2.environment.Environment._compile [function] [call site] 00359
4 jinja2.environment.Environment.compile [function] [call site] 00360
3 jinja2.environment.Environment.handle_exception [function] [call site] 00361
2 jinja2.environment.Environment.compile_templates.log_function [function] [call site] 00362
2 jinja2.loaders.ModuleLoader.get_module_filename [function] [call site] 00363
3 jinja2.loaders.ModuleLoader.get_template_key [function] [call site] 00364
4 name.encode [function] [call site] 00365
4 hashlib.sha1 [function] [call site] 00366
4 hashlib.sha1.hexdigest [function] [call site] 00367
2 jinja2.environment.Environment.compile_templates.write_file [function] [call site] 00368
3 zipfile.ZipInfo [function] [call site] 00369
3 zipfile.ZipFile.writestr [function] [call site] 00370
3 os.path.join [function] [call site] 00371
3 .open [function] [call site] 00372
3 data.encode [function] [call site] 00373
3 f.write [function] [call site] 00374
2 jinja2.environment.Environment.compile_templates.log_function [function] [call site] 00375
2 zipfile.ZipFile.close [function] [call site] 00376
2 jinja2.environment.Environment.compile_templates.log_function [function] [call site] 00377