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ddraw: Validate the "surface" pointer before creating the surface in CreateSurface(). 

And thereby avoid leaking the surface on the error path.

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alex Henrie 2017-02-16 15:12:15 +01:00 committed by Alexandre Julliard
parent 438d0fed86
commit 062f1ae752
1 changed files with 66 additions and 62 deletions
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108
dlls/ddraw/ddraw.c
View File

@ -2815,6 +2815,18 @@ static HRESULT WINAPI ddraw7_CreateSurface(IDirectDraw7 *iface, DDSURFACEDESC2 *
return DDERR_INVALIDPARAMS;
}
__TRY
{
*surface = NULL;
}
__EXCEPT_PAGE_FAULT
{
WARN("Surface pointer %p is invalid.\n", surface);
wined3d_mutex_unlock();
return DDERR_INVALIDPARAMS;
}
__ENDTRY;
if(surface_desc->ddsCaps.dwCaps & (DDSCAPS_FRONTBUFFER | DDSCAPS_BACKBUFFER))
{
if (TRACE_ON(ddraw))
@ -2830,23 +2842,12 @@ static HRESULT WINAPI ddraw7_CreateSurface(IDirectDraw7 *iface, DDSURFACEDESC2 *
hr = ddraw_surface_create(ddraw, surface_desc, &impl, outer_unknown, 7);
wined3d_mutex_unlock();
__TRY
{
if (FAILED(hr))
{
*surface = NULL;
break;
}
return hr;
*surface = &impl->IDirectDrawSurface7_iface;
IDirectDraw7_AddRef(iface);
impl->ifaceToRelease = (IUnknown *)iface;
}
__EXCEPT_PAGE_FAULT
{
hr = E_INVALIDARG;
}
__ENDTRY;
return hr;
}
@ -2877,6 +2878,18 @@ static HRESULT WINAPI ddraw4_CreateSurface(IDirectDraw4 *iface,
return DDERR_INVALIDPARAMS;
}
__TRY
{
*surface = NULL;
}
__EXCEPT_PAGE_FAULT
{
WARN("Surface pointer %p is invalid.\n", surface);
wined3d_mutex_unlock();
return DDERR_INVALIDPARAMS;
}
__ENDTRY;
if(surface_desc->ddsCaps.dwCaps & (DDSCAPS_FRONTBUFFER | DDSCAPS_BACKBUFFER))
{
if (TRACE_ON(ddraw))
@ -2892,23 +2905,12 @@ static HRESULT WINAPI ddraw4_CreateSurface(IDirectDraw4 *iface,
hr = ddraw_surface_create(ddraw, surface_desc, &impl, outer_unknown, 4);
wined3d_mutex_unlock();
__TRY
{
if (FAILED(hr))
{
*surface = NULL;
break;
}
return hr;
*surface = &impl->IDirectDrawSurface4_iface;
IDirectDraw4_AddRef(iface);
impl->ifaceToRelease = (IUnknown *)iface;
}
__EXCEPT_PAGE_FAULT
{
hr = E_INVALIDARG;
}
__ENDTRY;
return hr;
}
@ -2940,6 +2942,18 @@ static HRESULT WINAPI ddraw2_CreateSurface(IDirectDraw2 *iface,
return DDERR_INVALIDPARAMS;
}
__TRY
{
*surface = NULL;
}
__EXCEPT_PAGE_FAULT
{
WARN("Surface pointer %p is invalid.\n", surface);
wined3d_mutex_unlock();
return DDERR_INVALIDPARAMS;
}
__ENDTRY;
DDSD_to_DDSD2(surface_desc, &surface_desc2);
if(surface_desc->ddsCaps.dwCaps & (DDSCAPS_FRONTBUFFER | DDSCAPS_BACKBUFFER))
{
@ -2956,22 +2970,11 @@ static HRESULT WINAPI ddraw2_CreateSurface(IDirectDraw2 *iface,
hr = ddraw_surface_create(ddraw, &surface_desc2, &impl, outer_unknown, 2);
wined3d_mutex_unlock();
__TRY
{
if (FAILED(hr))
{
*surface = NULL;
break;
}
return hr;
*surface = &impl->IDirectDrawSurface_iface;
impl->ifaceToRelease = NULL;
}
__EXCEPT_PAGE_FAULT
{
hr = E_INVALIDARG;
}
__ENDTRY;
return hr;
}
@ -3003,6 +3006,18 @@ static HRESULT WINAPI ddraw1_CreateSurface(IDirectDraw *iface,
return DDERR_INVALIDPARAMS;
}
__TRY
{
*surface = NULL;
}
__EXCEPT_PAGE_FAULT
{
WARN("Surface pointer %p is invalid.\n", surface);
wined3d_mutex_unlock();
return DDERR_INVALIDPARAMS;
}
__ENDTRY;
if ((surface_desc->ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER))
== (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER)
|| (surface_desc->ddsCaps.dwCaps & (DDSCAPS_FLIP | DDSCAPS_FRONTBUFFER))
@ -3016,22 +3031,11 @@ static HRESULT WINAPI ddraw1_CreateSurface(IDirectDraw *iface,
DDSD_to_DDSD2(surface_desc, &surface_desc2);
hr = ddraw_surface_create(ddraw, &surface_desc2, &impl, outer_unknown, 1);
wined3d_mutex_unlock();
__TRY
{
if (FAILED(hr))
{
*surface = NULL;
break;
}
return hr;
*surface = &impl->IDirectDrawSurface_iface;
impl->ifaceToRelease = NULL;
}
__EXCEPT_PAGE_FAULT
{
hr = E_INVALIDARG;
}
__ENDTRY;
return hr;
}