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Commit e7d7ac77 authored by Rémi Bernon's avatar Rémi Bernon Committed by Alexandre Julliard
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wined3d: Add more padding to resource memory allocations.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55773
parent 4e95553a
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Showing with 5 additions and 1 deletion
dlls/wined3d/resource.c
View file @ e7d7ac77
...@@ -332,7 +332,11 @@ void CDECL wined3d_resource_preload(struct wined3d_resource *resource) ...@@ -332,7 +332,11 @@ void CDECL wined3d_resource_preload(struct wined3d_resource *resource)
static BOOL wined3d_resource_allocate_sysmem(struct wined3d_resource *resource) static BOOL wined3d_resource_allocate_sysmem(struct wined3d_resource *resource)
{ {
void **p; void **p;
SIZE_T align = RESOURCE_ALIGNMENT - 1 + sizeof(*p); /* Overallocate and add padding to the allocated pointer, to guard against
* games (for instance Railroad Tycoon 2) writing before the locked resource
* memory pointer.
*/
SIZE_T align = RESOURCE_ALIGNMENT + sizeof(*p);
void *mem; void *mem;
if (!(mem = heap_alloc_zero(resource->size + align))) if (!(mem = heap_alloc_zero(resource->size + align)))
......
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