avcodec/takdec: Fix runtime error: left shift of negative value -42
authorMichael Niedermayer <michael@niedermayer.cc>
Tue, 16 May 2017 22:44:36 +0000 (00:44 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Tue, 16 May 2017 22:46:00 +0000 (00:46 +0200)
Fixes: 1635/clusterfuzz-testcase-minimized-4992749856096256

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/takdec.c

index 42939b4..31d7031 100644 (file)
@@ -904,7 +904,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
         for (chan = 0; chan < avctx->channels; chan++) {
             int32_t *samples = (int32_t *)frame->extended_data[chan];
             for (i = 0; i < s->nb_samples; i++)
-                samples[i] <<= 8;
+                samples[i] *= 1 << 8;
         }
         break;
     }