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Fuzz test: crash in bytecode (mixed mode) #34683

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aartbik opened this issue Oct 4, 2018 · 1 comment
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Fuzz test: crash in bytecode (mixed mode) #34683

aartbik opened this issue Oct 4, 2018 · 1 comment
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@alexmarkov
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area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends. dartfuzz Found with Dart fuzzing (DartFuzz, libFuzzer, etc.)

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@aartbik
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aartbik commented Oct 4, 2018 •
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Fuzzer found potential issue with mixed mode:

Dartfuzz 1.1:4257245656 (I attached file for your convenience)

To reproduce:
pkg/vm/tool/gen_kernel --gen-bytecode --platform=${DART_TOP}/out/DebugX64/vm_platform_strong.dill -o out.dill fuzz.dart

Then use the three modes

/out/DebugX64/dart --enable-interpreter --compilation-counter-threshold=-1 out.dill
/out/DebugX64/dart --enable-interpreter out.dill
/out/DebugX64/dart --use-bytecode-compiler out.dill

interpreted OK
mixed-mode CRASH
compiled OK

../../runtime/vm/object.cc: 2056: error: expected: thread->IsMutatorThread() || (space != Heap::kNew)
@aartbik aartbik added the dartfuzz Found with Dart fuzzing (DartFuzz, libFuzzer, etc.) label Oct 4, 2018
@aartbik
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aartbik commented Oct 4, 2018

fuzz.dart.txt

@aartbik aartbik assigned aartbik and alexmarkov and unassigned aartbik Oct 4, 2018
@aartbik aartbik added the area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends. label Oct 5, 2018
@aartbik aartbik mentioned this issue Oct 5, 2018
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area-vm Use area-vm for VM related issues, including code coverage, and the AOT and JIT backends. dartfuzz Found with Dart fuzzing (DartFuzz, libFuzzer, etc.)
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