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Fix memory corruption caused by UEFI memory map size changes during allocation
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This commit is contained in:
Aiken Harris
2026-03-24 16:04:53 +01:00
parent b95613787a
commit 719564ba74
1 changed files with 1 additions and 1 deletions
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boot/xtldr/modules/xtos_o/xtos.cc
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@@ -410,7 +410,7 @@ Xtos::InitializeLoaderBlock(IN PXTBL_PAGE_MAPPING PageMap,
FbPages = EFI_SIZE_TO_PAGES(FbSize);
/* Calculate number of pages needed for memory descriptor list */
DescriptorPages = EFI_SIZE_TO_PAGES(PageMap->MapSize * sizeof(LOADER_MEMORY_DESCRIPTOR));
DescriptorPages = EFI_SIZE_TO_PAGES(PageMap->MapSize * sizeof(LOADER_MEMORY_DESCRIPTOR) * 2);
/* Allocate memory for the kernel initialization block and boot parameters */
Status = XtLdrProtocol->Memory.AllocatePages(AllocateAnyPages, BlockPages, &PhysicalBlock);