[FFmpeg-devel] [PATCH 1/2] avcodec/mpegaudiodec_template: Fix 2 runtime error: signed integer overflow

Michael Niedermayer michael at niedermayer.cc
Mon Mar 20 03:21:49 EET 2017


Fixes: 873/clusterfuzz-testcase-5714546230558720

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/mpegaudiodec_template.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavcodec/mpegaudiodec_template.c b/libavcodec/mpegaudiodec_template.c
index a5ac5817f3..6e94cf75f3 100644
--- a/libavcodec/mpegaudiodec_template.c
+++ b/libavcodec/mpegaudiodec_template.c
@@ -1038,7 +1038,8 @@ static void compute_stereo(MPADecodeContext *s, GranuleDef *g0, GranuleDef *g1)
 {
     int i, j, k, l;
     int sf_max, sf, len, non_zero_found;
-    INTFLOAT (*is_tab)[16], *tab0, *tab1, tmp0, tmp1, v1, v2;
+    INTFLOAT (*is_tab)[16], *tab0, *tab1, v1, v2;
+    SUINTFLOAT tmp0, tmp1;
     int non_zero_found_short[3];
 
     /* intensity stereo */
-- 
2.11.0



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