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google / syzkaller

syzkaller is an unsupervised coverage-guided kernel fuzzer
Apache License 2.0
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the KCOV not working on pixel4 #2571

Closed Lqingyu closed 3 years ago

Lqingyu commented 3 years ago

Hello all,

I tried to run syzkaller to fuzz the pixel4 phone. And i compile the kernel refer https://source.android.google.cn/setup/build/building-kernels, use build.config.kasan build the Image.lz4 and boot.img. After build I fastboot flash the phone(pixel4), but syzkaller says"Manager.Check call failed: machine check failed: got no coverage". Then I check the kernel build out file, CONFIG_KCOV=y ,but no __sanitizer_cov_trace_pc in functions. Does anyone know how to fix it?

Thanks

dvyukov commented 3 years ago

not a bug in syzkaller, asked on the mailing list