Reproducer for mi_slice_to out of bounds #544
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``` $ CC=clang CXX=clang++ cmake ../../ -DCMAKE_BUILD_TYPE=Debug -DMI_DEBUG_UBSAN=on $ make $ ./mimalloc-test-api test: malloc-zero... ok. test: malloc-nomem1... mimalloc: error: allocation request is too large (9223372036854775808 bytes) mimalloc: error: allocation request is too large (9223372036854775808 bytes) mimalloc: error: unable to allocate memory (9223372036854775808 bytes) ok. test: malloc-null... ok. test: malloc-large... .../src/segment.c:750:23: runtime error: index 1089 out of bounds for type 'mi_slice_t [1024]' SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior .../src/segment.c:750:23 in ``` See: microsoft#543 Signed-off-by: Christian Heimes <christian@python.org>
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Thanks for the PR @tiran; I did add this test by hand to base it on the |
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See: #543
Signed-off-by: Christian Heimes christian@python.org