2020-02-05 17:50:20,470 - root - INFO - Fuzzer dex_fuzzer, detected error: INFO: Seed: 1337 INFO: Loaded 1 modules (8322 inline 8-bit counters): 8322 [0x8eaaf0, 0x8ecb72), INFO: Loaded 1 PC tables (8322 PCs): 8322 [0x661bd8,0x6823f8), INFO: 7 files found in /tmp/dex_fuzzer_corpus INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 46328 bytes INFO: seed corpus: files: 7 min: 1264b max: 46328b total: 136996b rss: 36Mb #8 INITED cov: 265 ft: 523 corp: 7/133Kb exec/s: 0 rss: 43Mb #10 NEW cov: 266 ft: 538 corp: 8/147Kb lim: 46328 exec/s: 0 rss: 44Mb L: 13929/46328 MS: 2 ChangeBit-InsertByte- #12 NEW cov: 270 ft: 550 corp: 9/192Kb lim: 46328 exec/s: 0 rss: 44Mb L: 46328/46328 MS: 2 ShuffleBytes-CrossOver- #14 NEW cov: 270 ft: 557 corp: 10/201Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9103/46328 MS: 2 ChangeASCIIInt-EraseBytes- #15 NEW cov: 270 ft: 565 corp: 11/218Kb lim: 46328 exec/s: 0 rss: 45Mb L: 16991/46328 MS: 1 InsertRepeatedBytes- #21 NEW cov: 272 ft: 568 corp: 12/227Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9132/46328 MS: 1 InsertRepeatedBytes- #25 NEW cov: 275 ft: 575 corp: 13/236Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9262/46328 MS: 4 ChangeBinInt-InsertByte-ChangeBit-EraseBytes- #26 NEW cov: 280 ft: 602 corp: 14/244Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9133/46328 MS: 1 InsertByte- #44 NEW cov: 280 ft: 609 corp: 15/254Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9290/46328 MS: 3 ChangeByte-InsertRepeatedBytes-InsertRepeatedBytes- #60 NEW cov: 280 ft: 611 corp: 16/263Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9291/46328 MS: 1 InsertByte- #67 NEW cov: 280 ft: 614 corp: 17/272Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9074/46328 MS: 2 CopyPart-EraseBytes- #68 NEW cov: 280 ft: 617 corp: 18/305Kb lim: 46328 exec/s: 0 rss: 45Mb L: 34216/46328 MS: 1 InsertRepeatedBytes- #70 NEW cov: 280 ft: 618 corp: 19/321Kb lim: 46328 exec/s: 0 rss: 45Mb L: 16543/46328 MS: 2 ChangeASCIIInt-CopyPart- #71 NEW cov: 280 ft: 619 corp: 20/336Kb lim: 46328 exec/s: 0 rss: 45Mb L: 14936/46328 MS: 1 CopyPart- #72 NEW cov: 280 ft: 623 corp: 21/345Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9255/46328 MS: 1 EraseBytes- #79 NEW cov: 280 ft: 628 corp: 22/354Kb lim: 46328 exec/s: 0 rss: 45Mb L: 9263/46328 MS: 2 CopyPart-CMP- DE: "\x00\x00\x00\x00\x00\x00$'"- #80 NEW cov: 280 ft: 632 corp: 23/363Kb lim: 46328 exec/s: 80 rss: 45Mb L: 9312/46328 MS: 1 InsertRepeatedBytes- ================================================================= ==12==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x62500001b530 at pc 0x00000052138a bp 0x7ffe62db2c10 sp 0x7ffe62db23d8 READ of size 52 at 0x62500001b530 thread T0 SCARINESS: 26 (multi-byte-read-heap-buffer-overflow) #0 0x521389 in __asan_memcpy /src/llvm-project/compiler-rt/lib/asan/asan_interceptors_memintrinsics.cpp:22:3 #1 0x567590 in yr_object_set_string /src/yara/libyara/object.c:1122:5 #2 0x5afced in dex_parse /src/yara/libyara/modules/dex/dex.c:781:5 #3 0x5b4a8b in dex__load /src/yara/libyara/modules/dex/dex.c:1218:7 #4 0x56537c in yr_modules_load /src/yara/libyara/modules.c:179:16 #5 0x5d6583 in yr_execute_code /src/yara/libyara/exec.c:1276:18 #6 0x56f5c0 in yr_scanner_scan_mem_blocks /src/yara/libyara/scanner.c:444:3 #7 0x56bf23 in yr_rules_scan_mem_blocks /src/yara/libyara/rules.c:235:12 #8 0x56c182 in yr_rules_scan_mem /src/yara/libyara/rules.c:285:10 #9 0x5548d2 in LLVMFuzzerTestOneInput /src/yara/tests/oss-fuzz/dex_fuzzer.cc:40:3 #10 0x45a3b1 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:556:15 #11 0x459ad5 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool*) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:470:3 #12 0x45be77 in fuzzer::Fuzzer::MutateAndTestOne() /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:698:19 #13 0x45cc05 in fuzzer::Fuzzer::Loop(std::__Fuzzer::vector >&) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:830:5 #14 0x44ac88 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:824:6 #15 0x474ab2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:19:10 #16 0x7f4409b7a82f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f) #17 0x41e348 in _start (out/dex_fuzzer+0x41e348) 0x62500001b530 is located 0 bytes to the right of 9264-byte region [0x625000019100,0x62500001b530) allocated by thread T0 here: #0 0x521f4d in malloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3 #1 0x4331b7 in operator new(unsigned long) (out/dex_fuzzer+0x4331b7) #2 0x459ad5 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool*) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:470:3 #3 0x45be77 in fuzzer::Fuzzer::MutateAndTestOne() /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:698:19 #4 0x45cc05 in fuzzer::Fuzzer::Loop(std::__Fuzzer::vector >&) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:830:5 #5 0x44ac88 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:824:6 #6 0x474ab2 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:19:10 #7 0x7f4409b7a82f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f) SUMMARY: AddressSanitizer: heap-buffer-overflow /src/llvm-project/compiler-rt/lib/asan/asan_interceptors_memintrinsics.cpp:22:3 in __asan_memcpy Shadow bytes around the buggy address: 0x0c4a7fffb650: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c4a7fffb660: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c4a7fffb670: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c4a7fffb680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c4a7fffb690: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c4a7fffb6a0: 00 00 00 00 00 00[fa]fa fa fa fa fa fa fa fa fa 0x0c4a7fffb6b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c4a7fffb6c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c4a7fffb6d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c4a7fffb6e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c4a7fffb6f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==12==ABORTING MS: 1 InsertByte-; base unit: e91e5af87998bbf9aa64218be0652d64ba4ea89d artifact_prefix='./'; Test unit written to ./crash-ad6700613693ef977ff3a8c8f4dae239c3dde6f5