[FFmpeg-devel] [PATCH 2/6] avcodec/dca_xll: Fix runtime error: signed integer overflow: 2147286116 + 6298923 cannot be represented in type 'int'

[Michael Niedermayer]

Fixes: 732/clusterfuzz-testcase-4872990070145024

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/dca_xll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dca_xll.c b/libavcodec/dca_xll.c
index 6cebda35e4..551774ebc6 100644
--- a/libavcodec/dca_xll.c
+++ b/libavcodec/dca_xll.c
@@ -1312,7 +1312,7 @@ static int combine_residual_frame(DCAXllDecoder *s, DCAXllChSet *c)
         } else {
             // No downmix scaling
             for (n = 0; n < nsamples; n++)
-                dst[n] += (src[n] + round) >> shift;
+                dst[n] += (SUINT)((src[n] + round) >> shift);
         }
     }
 
-- 
2.11.0