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< __FBSDID("$FreeBSD: head/sys/dev/bhnd/siba/siba_subr.c 300548 2016-05-24 01:12:19Z adrian $");
---
> __FBSDID("$FreeBSD: head/sys/dev/bhnd/siba/siba_subr.c 301410 2016-06-04 19:53:47Z landonf $");
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<
---
>
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< if (UINT32_MAX - size < base)
---
> if (size > 0 && UINT32_MAX - (size - 1) < base)
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< base, base + r_size - 1, r_size);
---
> base, base + (r_size - 1), r_size);