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reject zero-length padded DATA frame in H2Context::OnData #3325

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reject zero-length padded DATA frame in H2Context::OnData #3325

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4 changes: 4 additions & 0 deletions src/brpc/policy/http2_rpc_protocol.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -701,6 +701,10 @@ H2ParseResult H2Context::OnData(
uint32_t frag_size = frame_head.payload_size;
uint8_t pad_length = 0;
if (frame_head.flags & H2_FLAGS_PADDED) {
if (frag_size == 0) {
LOG(ERROR) << "Invalid payload_size=" << frame_head.payload_size;
return MakeH2Error(H2_FRAME_SIZE_ERROR);
}
--frag_size;
pad_length = LoadUint8(it);
}
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