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GUACAMOLE-1717: Fix RDP cursor use of uninitialized memory

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Keeley Hoek 2023-03-17 18:51:36 -04:00 committed by Mike Jumper
parent 211ddb2253
commit 4fca7a6d7b
1 changed files with 8 additions and 9 deletions
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17
src/protocols/rdp/pointer.c
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@ -41,18 +41,17 @@ BOOL guac_rdp_pointer_new(rdpContext* context, rdpPointer* pointer) {
rdp_client->display, pointer->width, pointer->height);
/* Allocate data for image */
unsigned char* data = _aligned_malloc(pointer->width * pointer->height * 4, 16);
unsigned char* data = _aligned_recalloc(NULL, 1, pointer->width * pointer->height * 4, 16);
cairo_surface_t* surface;
/* Convert to alpha cursor if mask data present */
if (pointer->andMaskData && pointer->xorMaskData)
freerdp_image_copy_from_pointer_data(data,
guac_rdp_get_native_pixel_format(TRUE), 0, 0, 0,
pointer->width, pointer->height, pointer->xorMaskData,
pointer->lengthXorMask, pointer->andMaskData,
pointer->lengthAndMask, pointer->xorBpp,
&context->gdi->palette);
/* Convert to alpha cursor using mask data */
freerdp_image_copy_from_pointer_data(data,
guac_rdp_get_native_pixel_format(TRUE), 0, 0, 0,
pointer->width, pointer->height, pointer->xorMaskData,
pointer->lengthXorMask, pointer->andMaskData,
pointer->lengthAndMask, pointer->xorBpp,
&context->gdi->palette);
/* Create surface from image data */
surface = cairo_image_surface_create_for_data(