[FFmpeg-devel] [PATCH] swscale/x86/yuv2rgb: fix crashes when loading alpha from unaligned buffers

Marton Balint cus at passwd.hu
Thu Oct 29 00:42:40 EET 2020


Regression since fc6a5883d6af8cae0e96af84dda0ad74b360a084 on SSSE3 enabled
CPUs.

Fixes ticket #8955.

Signed-off-by: Marton Balint <cus at passwd.hu>
---
 libswscale/x86/yuv_2_rgb.asm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libswscale/x86/yuv_2_rgb.asm b/libswscale/x86/yuv_2_rgb.asm
index 003dff1f25..2f0b4130df 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
-- 
2.26.2



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