[Backport 3.6] Hardening: Make mbedtls_ssl_get_verify_result()
default to failure
#10443
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Trivial backport of #10442
Guard against a potential API misuse. Currently, when
mbedtls_ssl_get_verify_result()
is called before attempting a handshake, it returns 0 indicating success.Change this so that we initialize the result to 0xFFFFFFFF (indicating failure) when we first initialize the session object.
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mbedtls_ssl_get_verify_result()
default to failure #10442