From: Marton Balint <cus@passwd.hu>
Date: Wed, 28 Oct 2020 22:11:37 +0000 (+0100)
Subject: swscale/x86/yuv2rgb: fix crashes when loading alpha from unaligned buffers
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=993429cfb4a1a8d491d124be228cb7d620a57ba9;hp=02188639caf9c3fa6dcca753b586c83f4f110b6f;p=ffmpeg

swscale/x86/yuv2rgb: fix crashes when loading alpha from unaligned buffers

Regression since fc6a5883d6af8cae0e96af84dda0ad74b360a084 on SSSE3 enabled
CPUs.

Fixes ticket #8955.

Signed-off-by: Marton Balint <cus@passwd.hu>
---

diff --git a/libswscale/x86/yuv_2_rgb.asm b/libswscale/x86/yuv_2_rgb.asm
index 003dff1f259..2f0b4130df9 100644
--- a/libswscale/x86/yuv_2_rgb.asm
+++ b/libswscale/x86/yuv_2_rgb.asm
@@ -286,7 +286,7 @@ cglobal %1_420_%2%3, GPR_num, GPR_num, reg_num, parameters
 %ifidn %1, yuv
     pcmpeqd m3, m3 ; Set alpha empty
 %else
-    mova m3, [pa_2indexq + 2 * indexq] ; Load alpha
+    movu m3, [pa_2indexq + 2 * indexq] ; Load alpha
 %endif
     mova m5, m_blue
     mova m6, m_red