diff options
| -rw-r--r-- | chromium/services/tracing/public/cpp/perfetto/trace_packet_tokenizer.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/chromium/services/tracing/public/cpp/perfetto/trace_packet_tokenizer.cc b/chromium/services/tracing/public/cpp/perfetto/trace_packet_tokenizer.cc index 77542ed72d4..4d9a5048673 100644 --- a/chromium/services/tracing/public/cpp/perfetto/trace_packet_tokenizer.cc +++ b/chromium/services/tracing/public/cpp/perfetto/trace_packet_tokenizer.cc @@ -51,9 +51,12 @@ std::vector<perfetto::TracePacket> TracePacketTokenizer::Parse( DCHECK_EQ(kPacketTag, next_packet_.header[0]); // Parse the size field. + size_t header_size = next_packet_.header->size(); + uint8_t* last_ptr = &next_packet_.header[header_size - 1]; + uint8_t* end_ptr = last_ptr + 1; const auto* size_begin = &next_packet_.header[1]; const auto* size_end = protozero::proto_utils::ParseVarInt( - size_begin, &*next_packet_.header->end(), &next_packet_.parsed_size); + size_begin, end_ptr, &next_packet_.parsed_size); size_t size_field_size = size_end - size_begin; if (!size_field_size) { // Size field overflows to next chunk. Try again later. |