From 8f1c686bca3f98ef8b1e5f1e6b781a8dd2f2c417 Mon Sep 17 00:00:00 2001
From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Thu, 11 Apr 2019 09:09:59 +0200
Subject: [PATCH] panfrost: Guard against reading past end of buffer

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
---
 src/gallium/drivers/panfrost/pan_swizzle.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/panfrost/pan_swizzle.c b/src/gallium/drivers/panfrost/pan_swizzle.c
index 291bd1f88ae..52a907ddd55 100644
--- a/src/gallium/drivers/panfrost/pan_swizzle.c
+++ b/src/gallium/drivers/panfrost/pan_swizzle.c
@@ -97,6 +97,9 @@ swizzle_bpp1_align16(int width, int height, int source_stride, int block_pitch,
 
                 ++y;
 
+                if (y >= height)
+                        break;
+
                 {
                         int block_y = y & ~(0x0f);
                         int rem_y = y & 0x0f;
-- 
2.30.2