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Merge pull request #87246 from bs-mwoerner/ogg_crash

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Fix a possible crash when importing an OGG file with zero-length packets
This commit is contained in:
Rémi Verschelde
2024-02-14 14:08:03 +01:00
parent a1cc37966c a4db4ae658
commit 9705ac40c9
1 changed files with 8 additions and 6 deletions
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14
modules/vorbis/resource_importer_ogg_vorbis.cpp
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@@ -212,11 +212,13 @@ Ref<AudioStreamOggVorbis> ResourceImporterOggVorbis::load_from_buffer(const Vect
granule_pos = packet.granulepos; granule_pos = packet.granulepos;
} }
PackedByteArray data; if (packet.bytes > 0) {
data.resize(packet.bytes); PackedByteArray data;
memcpy(data.ptrw(), packet.packet, packet.bytes); data.resize(packet.bytes);
sorted_packets[granule_pos].push_back(data); memcpy(data.ptrw(), packet.packet, packet.bytes);
packet_count++; sorted_packets[granule_pos].push_back(data);
packet_count++;
}
} }
Vector<Vector<uint8_t>> packet_data; Vector<Vector<uint8_t>> packet_data;
for (const KeyValue<uint64_t, Vector<Vector<uint8_t>>> &pair : sorted_packets) { for (const KeyValue<uint64_t, Vector<Vector<uint8_t>>> &pair : sorted_packets) {
@@ -224,7 +226,7 @@ Ref<AudioStreamOggVorbis> ResourceImporterOggVorbis::load_from_buffer(const Vect
packet_data.push_back(packets); packet_data.push_back(packets);
} }
} }
if (initialized_stream) { if (initialized_stream && packet_data.size() > 0) {
ogg_packet_sequence->push_page(ogg_page_granulepos(&page), packet_data); ogg_packet_sequence->push_page(ogg_page_granulepos(&page), packet_data);
} }
} }