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Kernel: Implement some more KUBSAN checks :^)
This patch enables the following -fsanitize sub-options: * bounds * bounds-strict * integer-divide-by-zero * return * shift * shift-base * shift-exponent
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3 changed files with 34 additions and 1 deletions
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@ -87,4 +87,25 @@ void __ubsan_handle_mul_overflow(const OverflowData& data, void*, void*)
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dbgln("KUBSAN: multiplication overflow, {} ({}-bit)", data.type.name(), data.type.bit_width());
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print_location(data.location);
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}
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void __ubsan_handle_shift_out_of_bounds(const ShiftOutOfBoundsData&, void* lhs, void* rhs);
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void __ubsan_handle_shift_out_of_bounds(const ShiftOutOfBoundsData& data, void*, void*)
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{
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dbgln("KUBSAN: shift out of bounds, {} ({}-bit) shifted by {} ({}-bit)", data.lhs_type.name(), data.lhs_type.bit_width(), data.rhs_type.name(), data.rhs_type.bit_width());
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print_location(data.location);
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}
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void __ubsan_handle_divrem_overflow(const OverflowData&, void* lhs, void* rhs);
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void __ubsan_handle_divrem_overflow(const OverflowData& data, void*, void*)
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{
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dbgln("KUBSAN: divrem overlow, {} ({}-bit)", data.type.name(), data.type.bit_width());
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print_location(data.location);
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}
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void __ubsan_handle_out_of_bounds(const OutOfBoundsData&, void*);
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void __ubsan_handle_out_of_bounds(const OutOfBoundsData& data, void*)
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{
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dbgln("KUBSAN: out of bounds access into array of {} ({}-bit), index type {} ({}-bit)", data.array_type.name(), data.array_type.bit_width(), data.index_type.name(), data.index_type.bit_width());
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print_location(data.location);
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}
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}
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