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This finding is based on fuzzing MicroPython. I manually minimized the test case it provided. Signed-off-by: Jeff Epler <jepler@gmail.com>
28 lines
1.1 KiB
Python
28 lines
1.1 KiB
Python
# test builtin pow() with integral values
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# 3 arg version
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try:
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print(pow(3, 4, 7))
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except NotImplementedError:
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print("SKIP")
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raise SystemExit
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print(pow(555557, 1000002, 1000003))
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# Tests for 3 arg pow with large values
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# This value happens to be prime
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x = 0xd48a1e2a099b1395895527112937a391d02d4a208bce5d74b281cf35a57362502726f79a632f063a83c0eba66196712d963aa7279ab8a504110a668c0fc38a7983c51e6ee7a85cae87097686ccdc359ee4bbf2c583bce524e3f7836bded1c771a4efcb25c09460a862fc98e18f7303df46aaeb34da46b0c4d61d5cd78350f3edb60e6bc4befa712a849
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y = 0x3accf60bb1a5365e4250d1588eb0fe6cd81ad495e9063f90880229f2a625e98c59387238670936afb2cafc5b79448e4414d6cd5e9901aa845aa122db58ddd7b9f2b17414600a18c47494ed1f3d49d005a5
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print(hex(pow(2, 200, x))) # Should not overflow, just 1 << 200
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print(hex(pow(2, x-1, x))) # Should be 1, since x is prime
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print(hex(pow(y, x-1, x))) # Should be 1, since x is prime
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print(hex(pow(y, y-1, x))) # Should be a 'big value'
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print(hex(pow(y, y-1, y))) # Should be a 'big value'
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try:
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print(pow(1, 2, 0))
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except ValueError:
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print("ValueError")
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