Fuzz introspector: tests/fuzz/huf_decompress.c
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
387 0 EP call site: 00000 HUF_readDTableX2_wksp

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 FUZZ_dataProducer_create [function] [call site] 00001
2 FUZZ_malloc [function] [call site] 00002
3 malloc [function] [call site] 00003
3 FUZZ_ASSERT [function] [call site] 00004
1 FUZZ_dataProducer_int32Range [function] [call site] 00005
2 FUZZ_ASSERT [function] [call site] 00006
2 FUZZ_dataProducer_uint32Range [function] [call site] 00007
3 FUZZ_ASSERT [function] [call site] 00008
2 FUZZ_dataProducer_uint32Range [function] [call site] 00009
1 FUZZ_dataProducer_int32Range [function] [call site] 00010
1 ZSTD_cpuid_bmi2 [function] [call site] 00011
1 ZSTD_cpuid [function] [call site] 00012
1 FUZZ_dataProducer_int32Range [function] [call site] 00013
1 FUZZ_dataProducer_int32Range [function] [call site] 00014
1 FUZZ_dataProducer_int32Range [function] [call site] 00015
1 FUZZ_dataProducer_int32Range [function] [call site] 00016
1 FUZZ_dataProducer_int32Range [function] [call site] 00017
1 FUZZ_dataProducer_int32Range [function] [call site] 00018
1 FUZZ_dataProducer_uint32Range [function] [call site] 00019
1 FUZZ_dataProducer_uint32Range [function] [call site] 00020
1 FUZZ_malloc [function] [call site] 00021
1 HUF_DTABLE_SIZE [function] [call site] 00022
1 FUZZ_malloc [function] [call site] 00023
1 FUZZ_malloc [function] [call site] 00024
1 FUZZ_dataProducer_remainingBytes [function] [call site] 00025
1 HUF_readDTableX1_wksp [function] [call site] 00026
2 DEBUG_STATIC_ASSERT [function] [call site] 00027
2 ERROR [function] [call site] 00028
2 DEBUG_STATIC_ASSERT [function] [call site] 00029
2 HUF_readStats_wksp [function] [call site] 00030
3 HUF_readStats_body_bmi2 [function] [call site] 00031
4 HUF_readStats_body [function] [call site] 00032
5 ERROR [function] [call site] 00033
5 ERROR [function] [call site] 00034
5 ERROR [function] [call site] 00035
5 ERROR [function] [call site] 00036
5 FSE_decompress_wksp_bmi2 [function] [call site] 00037
6 FSE_decompress_wksp_body_bmi2 [function] [call site] 00038
7 FSE_decompress_wksp_body [function] [call site] 00039
8 FSE_STATIC_ASSERT [function] [call site] 00040
8 ERROR [function] [call site] 00041
8 FSE_STATIC_ASSERT [function] [call site] 00042
8 FSE_readNCount_bmi2 [function] [call site] 00043
9 FSE_readNCount_body_bmi2 [function] [call site] 00044
10 FSE_readNCount_body [function] [call site] 00045
11 ZSTD_memcpy [function] [call site] 00046
11 FSE_readNCount [function] [call site] 00047
12 FSE_readNCount_bmi2 [function] [call site] 00048
11 FSE_isError [function] [call site] 00049
12 ERR_isError [function] [call site] 00050
13 ERROR [function] [call site] 00051
11 ERROR [function] [call site] 00052
11 assert [function] [call site] 00053
11 ZSTD_memset [function] [call site] 00054
11 MEM_readLE32 [function] [call site] 00055
12 MEM_isLittleEndian [function] [call site] 00056
12 MEM_read32 [function] [call site] 00057
12 MEM_swap32 [function] [call site] 00058
13 _byteswap_ulong [function] [call site] 00059
13 __has_builtin [function] [call site] 00060
13 __builtin_bswap32 [function] [call site] 00061
13 __REV [function] [call site] 00062
13 MEM_swap32_fallback [function] [call site] 00063
12 MEM_read32 [function] [call site] 00064
11 ERROR [function] [call site] 00065
11 ZSTD_countTrailingZeros32 [function] [call site] 00066
12 assert [function] [call site] 00067
12 _tzcnt_u32 [function] [call site] 00068
12 _BitScanForward [function] [call site] 00069
12 __assume [function] [call site] 00070
12 __builtin_ctz [function] [call site] 00071
12 __builtin_ctz [function] [call site] 00072
12 ZSTD_countTrailingZeros32_fallback [function] [call site] 00073
13 assert [function] [call site] 00074
11 LIKELY [function] [call site] 00075
11 MEM_readLE32 [function] [call site] 00076
11 ZSTD_countTrailingZeros32 [function] [call site] 00077
11 assert [function] [call site] 00078
11 LIKELY [function] [call site] 00079
11 assert [function] [call site] 00080
11 MEM_readLE32 [function] [call site] 00081
11 assert [function] [call site] 00082
11 assert [function] [call site] 00083
11 ZSTD_highbit32 [function] [call site] 00084
12 assert [function] [call site] 00085
12 ZSTD_countLeadingZeros32 [function] [call site] 00086
13 assert [function] [call site] 00087
13 _lzcnt_u32 [function] [call site] 00088
13 _BitScanReverse [function] [call site] 00089
13 __assume [function] [call site] 00090
13 __builtin_clz [function] [call site] 00091
13 __builtin_clz [function] [call site] 00092
13 ZSTD_countLeadingZeros32_fallback [function] [call site] 00093
14 assert [function] [call site] 00094
11 LIKELY [function] [call site] 00095
11 MEM_readLE32 [function] [call site] 00096
11 ERROR [function] [call site] 00097
11 ERROR [function] [call site] 00098
11 ERROR [function] [call site] 00099
9 FSE_readNCount_body_default [function] [call site] 00100
10 FSE_readNCount_body [function] [call site] 00101
8 FSE_isError [function] [call site] 00102
8 ERROR [function] [call site] 00103
8 assert [function] [call site] 00104
8 FSE_DECOMPRESS_WKSP_SIZE [function] [call site] 00105
8 ERROR [function] [call site] 00106
8 assert [function] [call site] 00107
8 FSE_DTABLE_SIZE [function] [call site] 00108
8 FSE_DTABLE_SIZE [function] [call site] 00109
8 FSE_DTABLE_SIZE [function] [call site] 00110
8 CHECK_F [function] [call site] 00111
8 FSE_buildDTable_internal [function] [call site] 00112
9 FSE_BUILD_DTABLE_WKSP_SIZE [function] [call site] 00113
9 ERROR [function] [call site] 00114
9 ERROR [function] [call site] 00115
9 ERROR [function] [call site] 00116
9 ZSTD_memcpy [function] [call site] 00117
9 FSE_TABLESTEP [function] [call site] 00118
9 MEM_write64 [function] [call site] 00119
9 MEM_write64 [function] [call site] 00120
9 assert [function] [call site] 00121
9 assert [function] [call site] 00122
9 FSE_TABLESTEP [function] [call site] 00123
9 ERROR [function] [call site] 00124
9 ZSTD_highbit32 [function] [call site] 00125
8 FSE_decompress_usingDTable_generic [function] [call site] 00126
9 CHECK_F [function] [call site] 00127
9 BIT_initDStream [function] [call site] 00128
10 ZSTD_memset [function] [call site] 00129
10 ERROR [function] [call site] 00130
10 MEM_readLEST [function] [call site] 00131
11 MEM_32bits [function] [call site] 00132
11 MEM_readLE32 [function] [call site] 00133
11 MEM_readLE64 [function] [call site] 00134
12 MEM_isLittleEndian [function] [call site] 00135
12 MEM_read64 [function] [call site] 00136
12 MEM_swap64 [function] [call site] 00137
13 _byteswap_uint64 [function] [call site] 00138
13 __has_builtin [function] [call site] 00139
13 __builtin_bswap64 [function] [call site] 00140
13 MEM_swap64_fallback [function] [call site] 00141
12 MEM_read64 [function] [call site] 00142
10 ZSTD_highbit32 [function] [call site] 00143
10 ERROR [function] [call site] 00144
10 ZSTD_highbit32 [function] [call site] 00145
10 ERROR [function] [call site] 00146
9 FSE_initDState [function] [call site] 00147
10 BIT_readBits [function] [call site] 00148
11 BIT_lookBits [function] [call site] 00149
11 BIT_skipBits [function] [call site] 00150
10 BIT_reloadDStream [function] [call site] 00151
9 FSE_initDState [function] [call site] 00152
9 RETURN_ERROR_IF [function] [call site] 00153
9 BIT_reloadDStream [function] [call site] 00154
9 BIT_reloadDStream [function] [call site] 00155
9 FSE_GETSYMBOL [function] [call site] 00156
9 BIT_reloadDStream [function] [call site] 00157
9 FSE_GETSYMBOL [function] [call site] 00158
9 BIT_reloadDStream [function] [call site] 00159
9 FSE_GETSYMBOL [function] [call site] 00160
9 BIT_reloadDStream [function] [call site] 00161
9 FSE_GETSYMBOL [function] [call site] 00162
9 ERROR [function] [call site] 00163
9 FSE_GETSYMBOL [function] [call site] 00164
9 BIT_reloadDStream [function] [call site] 00165
9 FSE_GETSYMBOL [function] [call site] 00166
9 ERROR [function] [call site] 00167
9 FSE_GETSYMBOL [function] [call site] 00168
9 BIT_reloadDStream [function] [call site] 00169
9 FSE_GETSYMBOL [function] [call site] 00170
9 assert [function] [call site] 00171
8 FSE_decompress_usingDTable_generic [function] [call site] 00172
6 FSE_decompress_wksp_body_default [function] [call site] 00173
7 FSE_decompress_wksp_body [function] [call site] 00174
5 FSE_isError [function] [call site] 00175
5 ZSTD_memset [function] [call site] 00176
5 ERROR [function] [call site] 00177
5 ERROR [function] [call site] 00178
5 ZSTD_highbit32 [function] [call site] 00179
5 ERROR [function] [call site] 00180
5 ZSTD_highbit32 [function] [call site] 00181
5 ZSTD_highbit32 [function] [call site] 00182
5 ERROR [function] [call site] 00183
5 ERROR [function] [call site] 00184
3 HUF_readStats_body_default [function] [call site] 00185
4 HUF_readStats_body [function] [call site] 00186
2 HUF_isError [function] [call site] 00187
3 ERR_isError [function] [call site] 00188
2 HUF_getDTableDesc [function] [call site] 00189
3 ZSTD_memcpy [function] [call site] 00190
2 MIN [function] [call site] 00191
2 HUF_rescaleStats [function] [call site] 00192
2 ERROR [function] [call site] 00193
2 ZSTD_memcpy [function] [call site] 00194
2 HUF_DEltX1_set4 [function] [call site] 00195
3 MEM_isLittleEndian [function] [call site] 00196
3 assert [function] [call site] 00197
2 MEM_write64 [function] [call site] 00198
2 HUF_DEltX1_set4 [function] [call site] 00199
2 MEM_write64 [function] [call site] 00200
2 MEM_write64 [function] [call site] 00201
2 HUF_DEltX1_set4 [function] [call site] 00202
2 MEM_write64 [function] [call site] 00203
2 MEM_write64 [function] [call site] 00204
2 MEM_write64 [function] [call site] 00205
2 MEM_write64 [function] [call site] 00206
2 assert [function] [call site] 00207
1 ZSTD_isError [function] [call site] 00208
2 ERR_isError [function] [call site] 00209
1 HUF_readDTableX2_wksp [function] [call site] 00210
2 HUF_getDTableDesc [function] [call site] 00211
2 ERROR [function] [call site] 00212
2 ZSTD_memset [function] [call site] 00213
2 ZSTD_memset [function] [call site] 00214
2 DEBUG_STATIC_ASSERT [function] [call site] 00215
2 ERROR [function] [call site] 00216
2 HUF_readStats_wksp [function] [call site] 00217
2 HUF_isError [function] [call site] 00218
2 ERROR [function] [call site] 00219
2 HUF_fillDTableX2 [function] [call site] 00220
3 HUF_fillDTableX2Level2 [function] [call site] 00221
4 HUF_buildDEltX2U64 [function] [call site] 00222
5 HUF_buildDEltX2U32 [function] [call site] 00223
6 DEBUG_STATIC_ASSERT [function] [call site] 00224
6 DEBUG_STATIC_ASSERT [function] [call site] 00225
6 DEBUG_STATIC_ASSERT [function] [call site] 00226
6 DEBUG_STATIC_ASSERT [function] [call site] 00227
6 MEM_isLittleEndian [function] [call site] 00228
4 assert [function] [call site] 00229
4 assert [function] [call site] 00230
4 assert [function] [call site] 00231
4 ZSTD_memcpy [function] [call site] 00232
4 assert [function] [call site] 00233
4 ZSTD_memcpy [function] [call site] 00234
4 ZSTD_memcpy [function] [call site] 00235
4 ZSTD_memcpy [function] [call site] 00236
4 ZSTD_memcpy [function] [call site] 00237
4 ZSTD_memcpy [function] [call site] 00238
4 ZSTD_memcpy [function] [call site] 00239
4 HUF_fillDTableX2ForWeight [function] [call site] 00240
5 assert [function] [call site] 00241
5 HUF_buildDEltX2 [function] [call site] 00242
6 HUF_buildDEltX2U32 [function] [call site] 00243
6 DEBUG_STATIC_ASSERT [function] [call site] 00244
6 ZSTD_memcpy [function] [call site] 00245
5 HUF_buildDEltX2 [function] [call site] 00246
5 HUF_buildDEltX2U64 [function] [call site] 00247
5 ZSTD_memcpy [function] [call site] 00248
5 ZSTD_memcpy [function] [call site] 00249
5 HUF_buildDEltX2U64 [function] [call site] 00250
5 ZSTD_memcpy [function] [call site] 00251
5 ZSTD_memcpy [function] [call site] 00252
5 ZSTD_memcpy [function] [call site] 00253
5 ZSTD_memcpy [function] [call site] 00254
5 HUF_buildDEltX2U64 [function] [call site] 00255
5 ZSTD_memcpy [function] [call site] 00256
5 ZSTD_memcpy [function] [call site] 00257
5 ZSTD_memcpy [function] [call site] 00258
5 ZSTD_memcpy [function] [call site] 00259
3 HUF_fillDTableX2ForWeight [function] [call site] 00260
2 ZSTD_memcpy [function] [call site] 00261
1 ZSTD_isError [function] [call site] 00262
1 HUF_decompress1X_usingDTable [function] [call site] 00263
2 HUF_getDTableDesc [function] [call site] 00264
2 assert [function] [call site] 00265
2 HUF_decompress1X1_usingDTable_internal [function] [call site] 00266
2 assert [function] [call site] 00267
2 HUF_decompress1X2_usingDTable_internal [function] [call site] 00268
2 HUF_decompress1X2_usingDTable_internal [function] [call site] 00269
2 HUF_decompress1X1_usingDTable_internal [function] [call site] 00270
1 HUF_decompress4X_usingDTable [function] [call site] 00271
2 HUF_getDTableDesc [function] [call site] 00272
2 assert [function] [call site] 00273
2 HUF_decompress4X1_usingDTable_internal [function] [call site] 00274
3 fallbackFn [function] [call site] 00275
3 HUF_decompress4X1_usingDTable_internal_fast [function] [call site] 00276
4 ZSTD_maybeNullPtrAdd [function] [call site] 00277
4 HUF_DecompressFastArgs_init [function] [call site] 00278
5 HUF_getDTableDesc [function] [call site] 00279
5 ZSTD_maybeNullPtrAdd [function] [call site] 00280
5 MEM_isLittleEndian [function] [call site] 00281
5 MEM_32bits [function] [call site] 00282
5 assert [function] [call site] 00283
5 ERROR [function] [call site] 00284
5 MEM_readLE16 [function] [call site] 00285
6 MEM_isLittleEndian [function] [call site] 00286
6 MEM_read16 [function] [call site] 00287
5 MEM_readLE16 [function] [call site] 00288
5 MEM_readLE16 [function] [call site] 00289
5 ERROR [function] [call site] 00290
5 HUF_initFastDStream [function] [call site] 00291
6 ZSTD_highbit32 [function] [call site] 00292
6 MEM_readLEST [function] [call site] 00293
6 assert [function] [call site] 00294
6 assert [function] [call site] 00295
5 HUF_initFastDStream [function] [call site] 00296
5 HUF_initFastDStream [function] [call site] 00297
5 HUF_initFastDStream [function] [call site] 00298
4 FORWARD_IF_ERROR [function] [call site] 00299
4 assert [function] [call site] 00300
4 loopFn [function] [call site] 00301
4 assert [function] [call site] 00302
4 assert [function] [call site] 00303
4 assert [function] [call site] 00304
4 assert [function] [call site] 00305
4 assert [function] [call site] 00306
4 assert [function] [call site] 00307
4 assert [function] [call site] 00308
4 assert [function] [call site] 00309
4 FORWARD_IF_ERROR [function] [call site] 00310
4 HUF_initRemainingDStream [function] [call site] 00311
5 ERROR [function] [call site] 00312
5 ERROR [function] [call site] 00313
5 assert [function] [call site] 00314
5 MEM_readLEST [function] [call site] 00315
5 ZSTD_countTrailingZeros64 [function] [call site] 00316
6 assert [function] [call site] 00317
6 _tzcnt_u64 [function] [call site] 00318
6 _BitScanForward64 [function] [call site] 00319
6 __assume [function] [call site] 00320
6 __builtin_ctzll [function] [call site] 00321
6 __builtin_ctzll [function] [call site] 00322
6 ZSTD_countTrailingZeros32 [function] [call site] 00323
6 ZSTD_countTrailingZeros32 [function] [call site] 00324
4 HUF_decodeStreamX1 [function] [call site] 00325
5 BIT_reloadDStream [function] [call site] 00326
5 HUF_DECODE_SYMBOLX1_2 [function] [call site] 00327
5 HUF_DECODE_SYMBOLX1_1 [function] [call site] 00328
5 HUF_DECODE_SYMBOLX1_2 [function] [call site] 00329
5 HUF_DECODE_SYMBOLX1_0 [function] [call site] 00330
5 BIT_reloadDStream [function] [call site] 00331
5 MEM_32bits [function] [call site] 00332
5 BIT_reloadDStream [function] [call site] 00333
5 HUF_DECODE_SYMBOLX1_0 [function] [call site] 00334
5 HUF_DECODE_SYMBOLX1_0 [function] [call site] 00335
4 ERROR [function] [call site] 00336
4 assert [function] [call site] 00337
3 fallbackFn [function] [call site] 00338
2 assert [function] [call site] 00339
2 HUF_decompress4X2_usingDTable_internal [function] [call site] 00340
3 fallbackFn [function] [call site] 00341
3 HUF_decompress4X2_usingDTable_internal_fast [function] [call site] 00342
4 ZSTD_maybeNullPtrAdd [function] [call site] 00343
4 HUF_DecompressFastArgs_init [function] [call site] 00344
4 FORWARD_IF_ERROR [function] [call site] 00345
4 assert [function] [call site] 00346
4 loopFn [function] [call site] 00347
4 assert [function] [call site] 00348
4 assert [function] [call site] 00349
4 assert [function] [call site] 00350
4 assert [function] [call site] 00351
4 assert [function] [call site] 00352
4 assert [function] [call site] 00353
4 assert [function] [call site] 00354
4 FORWARD_IF_ERROR [function] [call site] 00355
4 HUF_initRemainingDStream [function] [call site] 00356
4 HUF_decodeStreamX2 [function] [call site] 00357
5 MEM_64bits [function] [call site] 00358
5 BIT_reloadDStream [function] [call site] 00359
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00360
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00361
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00362
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00363
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00364
5 BIT_reloadDStream [function] [call site] 00365
5 HUF_DECODE_SYMBOLX2_2 [function] [call site] 00366
5 HUF_DECODE_SYMBOLX2_1 [function] [call site] 00367
5 HUF_DECODE_SYMBOLX2_2 [function] [call site] 00368
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00369
5 BIT_reloadDStream [function] [call site] 00370
5 BIT_reloadDStream [function] [call site] 00371
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00372
5 HUF_DECODE_SYMBOLX2_0 [function] [call site] 00373
5 HUF_decodeLastSymbolX2 [function] [call site] 00374
6 BIT_lookBitsFast [function] [call site] 00375
6 ZSTD_memcpy [function] [call site] 00376
6 BIT_skipBits [function] [call site] 00377
6 BIT_skipBits [function] [call site] 00378
4 ERROR [function] [call site] 00379
3 fallbackFn [function] [call site] 00380
2 HUF_decompress4X2_usingDTable_internal [function] [call site] 00381
2 HUF_decompress4X1_usingDTable_internal [function] [call site] 00382
1 free [function] [call site] 00383
1 free [function] [call site] 00384
1 free [function] [call site] 00385
1 FUZZ_dataProducer_free [function] [call site] 00386
2 free [function] [call site] 00387