[PATCH v3 2/8] d3d9: Validate the stream index in d3d9_device_SetStreamSource().
Zebediah Figura
z.figura12 at gmail.com
Wed Feb 19 09:53:51 CST 2020
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
dlls/d3d9/device.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/dlls/d3d9/device.c b/dlls/d3d9/device.c
index 53e27adf05..8d85a43523 100644
--- a/dlls/d3d9/device.c
+++ b/dlls/d3d9/device.c
@@ -3669,16 +3669,25 @@ static HRESULT WINAPI d3d9_device_SetStreamSource(IDirect3DDevice9Ex *iface,
{
struct d3d9_device *device = impl_from_IDirect3DDevice9Ex(iface);
struct d3d9_vertexbuffer *buffer_impl = unsafe_impl_from_IDirect3DVertexBuffer9(buffer);
+ const struct wined3d_stateblock_state *state;
struct wined3d_buffer *wined3d_buffer;
HRESULT hr;
TRACE("iface %p, stream_idx %u, buffer %p, offset %u, stride %u.\n",
iface, stream_idx, buffer, offset, stride);
+ if (stream_idx >= ARRAY_SIZE(state->streams))
+ {
+ WARN("Stream index %u out of range.\n", stream_idx);
+ return WINED3DERR_INVALIDCALL;
+ }
+
wined3d_mutex_lock();
if (!buffer_impl)
{
- const struct wined3d_stream_state *stream = &wined3d_stateblock_get_state(device->state)->streams[stream_idx];
+ const struct wined3d_stream_state *stream;
+ state = wined3d_stateblock_get_state(device->state);
+ stream = &state->streams[stream_idx];
wined3d_buffer = stream->buffer;
offset = stream->offset;
stride = stream->stride;
--
2.25.0
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