Wt

In case postSignals_ == true and a linked session exists, emitHeadersReceived may be executed simultaneously with handleReadContent.

• emitHeadersReceived reads the whole message (i.e. it performs a copy of the message while emitting the headersReceived signal)
• handleReadContent may change the body of the message.

Hence, a race condition may occur, resulting in UB / a crash.

Possible solution

A possible solution is to copy the message already when posting emitHeadersReceived to the related session. An advantage of this solution is that the message provided as argument to the headersReceived signal does not contain a (partial) message body in all cases. Hence, the headersReceived signal is emitted with the exact same message independent of whether postSignals_ is true or false.