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Kernel: Propagate overflow errors from Memory::page_round_up

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Fixes #11402.
This commit is contained in:
Guilherme Goncalves
2021-12-24 11:22:11 -03:00
committed by Andreas Kling
parent 11599a3342
commit 33b78915d3
31 changed files with 112 additions and 100 deletions
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9
Kernel/Memory/VirtualRange.cpp
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@@ -38,18 +38,11 @@ VirtualRange VirtualRange::intersect(VirtualRange const& other) const
ErrorOr<VirtualRange> VirtualRange::expand_to_page_boundaries(FlatPtr address, size_t size)
{
if (page_round_up_would_wrap(size))
return EINVAL;
if ((address + size) < address)
return EINVAL;
if (page_round_up_would_wrap(address + size))
return EINVAL;
auto base = VirtualAddress { address }.page_base();
auto end = page_round_up(address + size);
auto end = TRY(page_round_up(address + size));
return VirtualRange { base, end - base.get() };
}