avcodec/x86/sbrdsp: Fix using uninitialized upper 32bit of noise

Fixes crash Fixes: flicker-1.scout3d21443372922.28.m4a Found-by: Dale Curtis <dalecurtis@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 1b82b934a166e60f64e966eaa97512ba9dcb615b) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-09-29 13:08:48 +02:00 · 2015-09-29 13:08:48 +02:00 · 71fc26403f
commit 71fc26403f
parent a2a93b0a8f
1 changed files with 1 additions and 0 deletions
--- a/libavcodec/x86/sbrdsp.asm
+++ b/libavcodec/x86/sbrdsp.asm
@ -381,6 +381,7 @@ apply_noise_main:
 %else
 %define count m_maxq
 %endif
+    movsxdifnidn    noiseq, noised
    dec    noiseq
    shl    count, 2
 %ifdef PIC