Commit Graph

8 Commits

Author SHA1 Message Date
Vladimir Glavnyy
c992eafb5b [fuzzer] Add monster_debug target (#6513)
Add the `monster_debug` target for better troubleshooting.
Improve oss-fuzz logs.
2021-03-18 10:56:28 -07:00
Vladimir Glavnyy
76e7a0ff55 [fuzzer] Limit parser_fuzzer execution time (#6431)
Limit the length of the fuzzer input to 16384 characters to prevent timeout
in JSON parser (Vector of tables with key).

Related oss-fuzz issues:
- 5742497110294528
2021-01-30 21:43:31 +07:00
Vladimir Glavnyy
7abe612b59 [fuzzer] Fix the binary schema loading in the monster_fuzzer (#6396)
This commit should fix issue 29374 in oss-fuzz.
2021-01-12 10:20:47 -08:00
Vladimir Glavnyy
85719669cb [fuzzer] Debug the monster_tets.bfbs on clusterfuzz server (#6392)
For some reason, this fuzzer failed to load the binary schema file
when run on the `/clusterfuzz` server.
Issue: https://oss-fuzz.com/testcase-detail/6215075358703616
This issue doesn't reproduce locally with the latest oss-fuzz docker image.
2021-01-08 11:09:41 -08:00
Vladimir Glavnyy
82836a62be [idl_parser] Improve stack overflow protection (#6364)
* [idl_parser] Improve stack overflow protection

Add stack overflow protection for Flexbuffer and nested Flatbuffer parsers.
Replaces the `Recurse()` method by the new ParseDepthGuard RAII class.

* Remove move operator from Parser.

It was wrong decision to add move ctor and assignment into Parser class.
These operators will make it extremely difficult to add constant or reference fields in the future.

* Remove ';' from definition of FLATBUFFERS_DELETE_FUNC

* Format code

* Make this PR compatible with MSVC2010 (it doesn't support inherited ctor)
2021-01-04 12:39:12 -08:00
Vladimir Glavnyy
92a806b4e8 [fuzzer] Rename fuzzing dictionaries for oss-fuzz (#6318)
This commit makes the names of fuzzing dictionaries the same as the target binary names.
Also it explicitly limits size of test inputs to prevent failures in `regex` and fuzzing time-outs.
2020-12-10 14:02:01 -08:00
Vladimir Glavnyy
f437f0f7ed [fuzzer] Fix loading of schema in monster_fuzzer (#6308)
This is fix for (https://oss-fuzz.com/testcase-detail/6251772204810240)
2020-12-07 11:21:23 -08:00
Vladimir Glavnyy
c27bc2d76f [C++] Add ParseJson(), Parser(Parser&&), update fuzzers (#6284)
- add a new method ParseJson to minimize failures during fuzzing
- add default (conditional) move-constructor for Parser
- add a new monster_fuzzer
- switch fuzzers to C++17 and `test/cpp17` generated code
2020-11-23 10:17:44 -08:00