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add a single-shot crash report utility #703
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ranweiler
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Mar 22, 2021
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ghost
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This builds upon #591 to expand the stack minimization to crash reporting mechanisms. Example (see #703 for an example without the new functionality): ``` $ onefuzz-agent local test-input /tmp/fuzz.exe /etc/passwd { "crash_report": { "input_sha256": "a35b3ce1038750e9175a6dcd3f64c8d4e85720affb12cc11f5d0b6889274d06e", "executable": "/tmp/fuzz.exe", "crash_type": "SIGABRT", "crash_site": "0x7ffff7e0d18b in gsignal+0xcb (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x4618b)", "call_stack": [ "#0 0x7ffff7e0d18b in gsignal+0xcb (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x4618b)", "#1 0x7ffff7dec859 in abort+0x12b (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x25859)", "#2 0x7ffff7e573ee in <unknown> (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x903ee)", "#3 0x7ffff7ef9b4a in __fortify_fail+0x2a (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x132b4a)", "#4 0x7ffff7ef83e6 in __chk_fail+0x16 (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x1313e6)", "#5 0x7ffff7ef7e09 in __strncpy_chk+0x19 (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x130e09)", "#6 0x400a54 in from_file+0xa4 (/tmp/fuzz.exe+0xa54)", "#7 0x7ffff7dee0b3 in __libc_start_main+0xf3 (/usr/lib/x86_64-linux-gnu/libc-2.31.so+0x270b3)", "#8 0x40077a in _start+0x2a (/tmp/fuzz.exe+0x77a)" ], "call_stack_sha256": "99625a7c103136e02910b65c7b60f1bbd1a7612242d6838da52d968369039409", "minimized_stack": [ "__fortify_fail", "__chk_fail", "from_file" ], "minimized_stack_sha256": "237f13bfa384c6c2bc06369099373efbb36995a9ad00fd5469d354b5fc672ba1", "minimized_stack_function_names": [ "__fortify_fail", "__chk_fail", "from_file" ], "minimized_stack_function_names_sha256": "237f13bfa384c6c2bc06369099373efbb36995a9ad00fd5469d354b5fc672ba1", "asan_log": "", "task_id": "00000000-0000-0000-0000-000000000000", "job_id": "00000000-0000-0000-0000-000000000000" } } $ ```
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Adds
test-inputandtest-input-libfuzzer, which print the CrashTestResult in json form.While many of the existing tasks make sense running in a managed loop, crash report generation is something that having a single one-off is useful.
Example: