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Caught a bug in roaring_bitmap_internal_validate #516
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Thanks! Yay for fuzzing.
tests/toplevel_unit.c
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DEFINE_TEST(robust_deserialization) { | ||
assert_true(deserialization_test(NULL, 0)); | ||
const char* test1 = "\x3b\x30\x00\x00\x01\x00\x00\xfa\x2e\x01\x00\x00\x02\xff\xff"; |
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nit: This could be const char test1[] = "..."; assert_true(deserialization_test(test1, sizeof(test1))
to avoid the magic number "15"
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Done.
tests/toplevel_unit.c
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DEFINE_TEST(robust_deserialization) { | ||
assert_true(deserialization_test(NULL, 0)); | ||
const char* test1 = "\x3b\x30\x00\x00\x01\x00\x00\xfa\x2e\x01\x00\x00\x02\xff\xff"; | ||
assert_true(deserialization_test(test1, 15)); |
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I'm presuming the data in test1 contains an overflowing run container, but this test will succeed if any of the following are true, but I think we expect it to specifically fail internal validation (the last option):
- This inconsistent bitmap doesn't deserialize at all
- This inconsistent bitmap deserializes, validates, and can be successfully added to
- This inconsistent bitmap deserializes, but fails validation
It might be better to be more specific about what type of error we expect from this.
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It might also be good to include a comment about what the contents of test1
are.
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I have added comments. We can certainly add better tests.
I will merge and release. |
We can miss an issue whereas the run containers overflow the 16-bit boundary.