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Commit 862a2bef authored by Santiago Seifert's avatar Santiago Seifert Committed by Automerger Merge Worker
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Merge "Abort operation upon arithmetic overflows" into sc-dev am: 1f4ba5f9 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/14947972

Change-Id: I9aa7536de65ed9af11cb711e5075e916d18efc24
parents e82406fe 1f4ba5f9

media/extractors/mp3/MP3Extractor.cpp

+8 −1
Original line number Diff line number Diff line
@@ -504,7 +504,14 @@ media_status_t MP3Source::read( 
            }



            mCurrentTimeUs = seekTimeUs;

            mCurrentPos = mFirstFramePos + seekTimeUs * bitrate / 8000000;

            int64_t seekTimeUsTimesBitrate;

            if (__builtin_mul_overflow(seekTimeUs, bitrate, &seekTimeUsTimesBitrate)) {

              return AMEDIA_ERROR_UNSUPPORTED;

            }

            if (__builtin_add_overflow(

                    mFirstFramePos, seekTimeUsTimesBitrate / 8000000, &mCurrentPos)) {

                return AMEDIA_ERROR_UNSUPPORTED;

            }

            seekCBR = true;

        } else {

            mCurrentTimeUs = actualSeekTimeUs;