[gnutls-devel] GnuTLS | Fix issues in record_size_limit extension handling (!879)

[Development of GNU's TLS library]

Hubert Kario commented on a discussion on lib/ext/record_size_limit.c:

>  	if (new_size < 64)
>  		return gnutls_assert_val(GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER);
>  
> +	/* the same size should be requested upon HRR */
> +	if (unlikely
> +	    (session->internals.hsk_flags & HSK_HRR_SENT &&
> +	     session->internals.hsk_flags & HSK_RECORD_SIZE_LIMIT_RECEIVED &&
> +	     new_size != session->internals.peer_record_size_limit))
> +		return gnutls_assert_val(GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER);

I've added test cases to check for that, please verify: https://github.com/tomato42/tlsfuzzer/pull/506

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