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wow64: Truncate too-large regions from NtQueryVirtualMemory(MemoryRegionInformation).

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AllocationBase + RegionSize should not exceed the highest WoW user
address.
This commit is contained in:
Tim Clem 2022-11-08 13:51:40 -08:00 committed by Alexandre Julliard
parent 62fbfe8761
commit 06321ba57b
1 changed files with 2 additions and 0 deletions
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2
dlls/wow64/virtual.c
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@ -444,6 +444,8 @@ NTSTATUS WINAPI wow64_NtQueryVirtualMemory( UINT *args )
info32->CommitSize = info.CommitSize;
info32->PartitionId = info.PartitionId;
info32->NodePreference = info.NodePreference;
if ((ULONG_PTR)info.AllocationBase + info.RegionSize > highest_user_address)
info32->RegionSize = highest_user_address - (ULONG_PTR)info.AllocationBase + 1;
}
}
res_len = sizeof(MEMORY_REGION_INFORMATION32);