diff options
Diffstat (limited to 'media/libstagefright/SampleTable.cpp')
-rw-r--r-- | media/libstagefright/SampleTable.cpp | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/media/libstagefright/SampleTable.cpp b/media/libstagefright/SampleTable.cpp index bdd6d56..aba64d5 100644 --- a/media/libstagefright/SampleTable.cpp +++ b/media/libstagefright/SampleTable.cpp @@ -230,8 +230,13 @@ status_t SampleTable::setSampleToChunkParams( return ERROR_MALFORMED; } + if (SIZE_MAX / sizeof(SampleToChunkEntry) <= mNumSampleToChunkOffsets) + return ERROR_OUT_OF_RANGE; + mSampleToChunkEntries = - new SampleToChunkEntry[mNumSampleToChunkOffsets]; + new (std::nothrow) SampleToChunkEntry[mNumSampleToChunkOffsets]; + if (!mSampleToChunkEntries) + return ERROR_OUT_OF_RANGE; for (uint32_t i = 0; i < mNumSampleToChunkOffsets; ++i) { uint8_t buffer[12]; @@ -330,11 +335,13 @@ status_t SampleTable::setTimeToSampleParams( } mTimeToSampleCount = U32_AT(&header[4]); - uint64_t allocSize = mTimeToSampleCount * 2 * sizeof(uint32_t); + uint64_t allocSize = mTimeToSampleCount * 2 * (uint64_t)sizeof(uint32_t); if (allocSize > SIZE_MAX) { return ERROR_OUT_OF_RANGE; } - mTimeToSample = new uint32_t[mTimeToSampleCount * 2]; + mTimeToSample = new (std::nothrow) uint32_t[mTimeToSampleCount * 2]; + if (!mTimeToSample) + return ERROR_OUT_OF_RANGE; size_t size = sizeof(uint32_t) * mTimeToSampleCount * 2; if (mDataSource->readAt( @@ -376,12 +383,14 @@ status_t SampleTable::setCompositionTimeToSampleParams( } mNumCompositionTimeDeltaEntries = numEntries; - uint64_t allocSize = numEntries * 2 * sizeof(uint32_t); + uint64_t allocSize = numEntries * 2 * (uint64_t)sizeof(uint32_t); if (allocSize > SIZE_MAX) { return ERROR_OUT_OF_RANGE; } - mCompositionTimeDeltaEntries = new uint32_t[2 * numEntries]; + mCompositionTimeDeltaEntries = new (std::nothrow) uint32_t[2 * numEntries]; + if (!mCompositionTimeDeltaEntries) + return ERROR_OUT_OF_RANGE; if (mDataSource->readAt( data_offset + 8, mCompositionTimeDeltaEntries, numEntries * 8) @@ -426,12 +435,15 @@ status_t SampleTable::setSyncSampleParams(off64_t data_offset, size_t data_size) ALOGV("Table of sync samples is empty or has only a single entry!"); } - uint64_t allocSize = mNumSyncSamples * sizeof(uint32_t); + uint64_t allocSize = mNumSyncSamples * (uint64_t)sizeof(uint32_t); if (allocSize > SIZE_MAX) { return ERROR_OUT_OF_RANGE; } - mSyncSamples = new uint32_t[mNumSyncSamples]; + mSyncSamples = new (std::nothrow) uint32_t[mNumSyncSamples]; + if (!mSyncSamples) + return ERROR_OUT_OF_RANGE; + size_t size = mNumSyncSamples * sizeof(uint32_t); if (mDataSource->readAt(mSyncSampleOffset + 8, mSyncSamples, size) != (ssize_t)size) { @@ -499,7 +511,9 @@ void SampleTable::buildSampleEntriesTable() { return; } - mSampleTimeEntries = new SampleTimeEntry[mNumSampleSizes]; + mSampleTimeEntries = new (std::nothrow) SampleTimeEntry[mNumSampleSizes]; + if (!mSampleTimeEntries) + return; uint32_t sampleIndex = 0; uint32_t sampleTime = 0; |