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krnl386.exe: Page-align the GlobalAlloc() size when the selector limit is in pages. 

GlobalSize() uses the selector limit and that needs to match the
allocated size.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52082
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-12-12 17:57:55 +01:00
parent 40d706caba
commit 1c5e4d066f
1 changed files with 4 additions and 2 deletions
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6
dlls/krnl386.exe16/global.c
View File

@ -196,6 +196,7 @@ HGLOBAL16 GLOBAL_Alloc( UINT16 flags, DWORD size, HGLOBAL16 hOwner, unsigned cha
{ {
void *ptr; void *ptr;
HGLOBAL16 handle; HGLOBAL16 handle;
DWORD align = 0x1f;
TRACE("%d flags=%04x\n", size, flags ); TRACE("%d flags=%04x\n", size, flags );
@ -205,8 +206,9 @@ HGLOBAL16 GLOBAL_Alloc( UINT16 flags, DWORD size, HGLOBAL16 hOwner, unsigned cha
/* Fixup the size */ /* Fixup the size */
if (size >= GLOBAL_MAX_ALLOC_SIZE - 0x1f) return 0; if (size > 0x100000) align = 0xfff; /* selector limit will be in pages */
size = (size + 0x1f) & ~0x1f; if (size >= GLOBAL_MAX_ALLOC_SIZE - align) return 0;
size = (size + align) & ~align;
/* Allocate the linear memory */ /* Allocate the linear memory */
ptr = HeapAlloc( get_win16_heap(), 0, size ); ptr = HeapAlloc( get_win16_heap(), 0, size );