avcodec/vp3dsp: Use unsigned constant to avoid undefined integer overflow in ff_vp3ds...

Fixes: signed integer overflow: 64 * 33686018 cannot be represented in type 'int'
Fixes: 26911/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_THEORA_fuzzer-4904975073017856
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/libavcodec/vp3dsp.c b/libavcodec/vp3dsp.c
index f485fba1f645c5d7c30b28ef20dbb345bb981a2d..ec859a679d0beffd9fd3d917140c7c28e97042ff 100644 (file)
--- a/libavcodec/vp3dsp.c
+++ b/libavcodec/vp3dsp.c
@@ -490,5 +490,5 @@ void ff_vp3dsp_set_bounding_values(int * bounding_values_array, int filter_limit
     }
     if (value)
         bounding_values[128] = value;
-    bounding_values[129] = bounding_values[130] = filter_limit * 0x02020202;
+    bounding_values[129] = bounding_values[130] = filter_limit * 0x02020202U;
 }