Kotlin Version Support
See original GitHub issueI have updated a project to a new Kotlin version (1.5.10
) and now the fuzzer stops working (tests haven’t been changed):
INFO: Loaded 8562 no-throw method signatures
INFO: libFuzzer ignores flags that start with '--'
INFO: Seed: 4294574280
INFO: Loaded 1 modules (512 inline 8-bit counters): 512 [0x7f4e83eff010, 0x7f4e83eff210),
INFO: Loaded 1 PC tables (512 PCs): 512 [0x7f4e82afd010,0x7f4e82aff010),
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: New number of inline 8-bit counters: 1024
INFO: New number of inline 8-bit counters: 2048
INFO: New number of inline 8-bit counters: 4096
INFO: New number of inline 8-bit counters: 8192
INFO: New number of inline 8-bit counters: 16384
INFO: New number of inline 8-bit counters: 32768
INFO: New number of inline 8-bit counters: 65536
INFO: A corpus is not provided, starting from an empty corpus
#2 INITED exec/s: 2 rss: 207Mb
ERROR: no interesting inputs were found. Is the code instrumented for coverage? Exiting.
Before (Kotlin 1.4.31
):
INFO: Loaded 8562 no-throw method signatures
INFO: Instrumented net.grandcentrix.cellulariot.cellularhub.fuzztests.targets.MessageMustacheSerializerFuzzer (took 153 ms, size +43%)
INFO: libFuzzer ignores flags that start with '--'
INFO: Seed: 1145321598
INFO: Loaded 1 modules (512 inline 8-bit counters): 512 [0x7fe4fedce010, 0x7fe4fedce210),
INFO: Loaded 1 PC tables (512 PCs): 512 [0x7fe4fd9cc010,0x7fe4fd9ce010),
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: Instrumented net.grandcentrix.cellulariot.cellularhub.utils.serialisation.models.SerialisationContext (took 14 ms, size +25%)
INFO: Instrumented net.grandcentrix.cellulariot.cellularhub.utils.serialisation.models.SerialisationProductDto (took 5 ms, size +37%)
...
Might this be related to Jazzer?
Issue Analytics
- State:
- Created 2 years ago
- Comments:5 (3 by maintainers)
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Thanks for the fast response! I now used
gcr.io/oss-fuzz-base/base-builder-jvm
as a base image and it works:Your changes regarding the Kotlin version seem to work 😃
I will figure out my problem from above, thanks for the advice!
@schirrmacher Could you try again using Jazzer built from https://github.com/CodeIntelligenceTesting/jazzer/pull/181?