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AU Host: Avoid potential UB reads of MIDI data

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reuk 2025-07-30 15:57:01 +01:00
parent aebba3c875
commit b5ea607dcc
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1 changed files with 12 additions and 1 deletions
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13
modules/juce_audio_processors/format_types/juce_AudioUnitPluginFormat.mm
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@ -1417,11 +1417,22 @@ public:
for (const auto metadata : midiMessages)
{
if (metadata.numBytes <= 3)
{
const auto getByteOrZero = [&metadata] (int index)
{
return index < metadata.numBytes ? metadata.data[index] : (uint8) 0;
};
MusicDeviceMIDIEvent (audioUnit,
metadata.data[0], metadata.data[1], metadata.data[2],
getByteOrZero (0),
getByteOrZero (1),
getByteOrZero (2),
(UInt32) metadata.samplePosition);
}
else
{
MusicDeviceSysEx (audioUnit, metadata.data, (UInt32) metadata.numBytes);
}
}
midiMessages.clear();