https://git.reactos.org/?p=reactos.git;a=commitdiff;h=f114209782a0f44fa6b80…
commit f114209782a0f44fa6b80cc3aa1e7d583d5dacea
Author: Jérôme Gardou <jerome.gardou(a)reactos.org>
AuthorDate: Fri Dec 4 09:10:13 2020 +0100
Commit: Jérôme Gardou <jerome.gardou(a)reactos.org>
CommitDate: Wed Feb 3 09:41:22 2021 +0100
[NTOS/MM] Do not zero out the tail of the segment if the mapping is not an image
---
ntoskrnl/mm/section.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ntoskrnl/mm/section.c b/ntoskrnl/mm/section.c
index 08e68a20c33..6b6a6cb94be 100644
--- a/ntoskrnl/mm/section.c
+++ b/ntoskrnl/mm/section.c
@@ -1205,7 +1205,7 @@ MiReadPage(PMEMORY_AREA MemoryArea,
Status = STATUS_SUCCESS;
}
- if ((SegOffset + PAGE_SIZE) >
MemoryArea->SectionData.Segment->RawLength.QuadPart)
+ if ((MemoryArea->VadNode.u.VadFlags.VadType == VadImageMap) && ((SegOffset
+ PAGE_SIZE) > MemoryArea->SectionData.Segment->RawLength.QuadPart))
{
KIRQL OldIrql;
PUCHAR PageMap;