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fix simple typo
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@ -88,7 +88,7 @@ options are available:
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adding 8 byte canaries to the end of memory allocations. The primary purpose
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of the canaries is to render small fixed size buffer overflows harmless by
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absorbing them. The first byte of the canary is always zero, containing
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overflows caused by a missing C string NUL terminator. The other 7 bytes are
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overflows caused by a missing C string NULL terminator. The other 7 bytes are
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a per-slab random value. On free, integrity of the canary is checked to
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detect attacks like linear overflows or other forms of heap corruption caused
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by imprecise exploit primitives. However, checking on free will often be too
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