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[api] Release prologue memory after noise handshake completes

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This commit is contained in:
J. Nick Koston
2025-12-10 22:31:09 +01:00
parent d1d376ebc8
commit 5c39ff7b5c
1 changed files with 2 additions and 1 deletions
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3
esphome/components/api/api_frame_helper_noise.cpp
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@@ -539,7 +539,8 @@ APIError APINoiseFrameHelper::init_handshake_() {
if (aerr != APIError::OK)
return aerr;
// set_prologue copies it into handshakestate, so we can get rid of it now
prologue_ = {};
// Use swap idiom to actually release memory (= {} only clears size, not capacity)
std::vector<uint8_t>().swap(prologue_);
err = noise_handshakestate_start(handshake_);
aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_start"), APIError::HANDSHAKESTATE_SETUP_FAILED);