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Commit bc9c9b7b authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Android (Google) Code Review
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Merge "Crash by invalid ac4 field of mp4 file in fuzzy test" into rvc-dev

parents 82e78bd3 c9e162bc

media/extractors/mp4/AC4Parser.cpp

+4 −0
Original line number Diff line number Diff line
@@ -600,6 +600,10 @@ bool AC4DSIParser::parse() { 
        if (ac4_dsi_version == 1) {

            uint64_t end = (mDSISize - mBitReader.numBitsLeft()) / 8;

            uint64_t presentation_bytes = end - start;

            if (pres_bytes < presentation_bytes) {

                ALOGE("pres_bytes is smaller than presentation_bytes.");

                return false;

            }

            uint64_t skip_bytes = pres_bytes - presentation_bytes;

            ALOGV("skipping = %" PRIu64 " bytes", skip_bytes);

            CHECK_BITS_LEFT(skip_bytes * 8);