From b1541c2d1ee74c11810683e12b145a9c33fc9fb2 Mon Sep 17 00:00:00 2001
From: Lubosz Sarnecki <lubosz.sarnecki@collabora.com>
Date: Fri, 22 May 2020 13:47:13 +0200
Subject: [PATCH] st/oxr: Return XR_ERROR_SWAPCHAIN_RECT_INVALID.

For out of bounds imageRect offsets on quad layers.
---
 src/xrt/state_trackers/oxr/oxr_session.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/xrt/state_trackers/oxr/oxr_session.c b/src/xrt/state_trackers/oxr/oxr_session.c
index 16c10a634..582a8bb2d 100644
--- a/src/xrt/state_trackers/oxr/oxr_session.c
+++ b/src/xrt/state_trackers/oxr/oxr_session.c
@@ -496,6 +496,13 @@ verify_quad_layer(struct xrt_compositor *xc,
 		                 layer_index);
 	}
 
+	if (quad->subImage.imageRect.offset.x >= 1 ||
+	    quad->subImage.imageRect.offset.y >= 1) {
+		return oxr_error(log, XR_ERROR_SWAPCHAIN_RECT_INVALID,
+		                 "imageRect offset out of bounds for layer %u.",
+		                 layer_index);
+	}
+
 	return XR_SUCCESS;
 }