On 31-05-16 13:42, Ivo Manca wrote:
> Signed-off-by: Ivo Manca <[email protected]>
> ---
>  src/openvpn/ssl_verify_mbedtls.c | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/src/openvpn/ssl_verify_mbedtls.c 
> b/src/openvpn/ssl_verify_mbedtls.c
> index 9c4b51a..522ff68 100644
> --- a/src/openvpn/ssl_verify_mbedtls.c
> +++ b/src/openvpn/ssl_verify_mbedtls.c
> @@ -162,7 +162,7 @@ backend_x509_get_serial (mbedtls_x509_crt *cert, struct 
> gc_arena *gc)
>        cert->serial.len)))
>      {
>        msg(M_WARN, "Failed to retrieve serial from certificate.");
> -      return NULL;
> +      goto end;
>      }
>  
>    /* Determine decimal representation length, allocate buffer */
> @@ -173,9 +173,12 @@ backend_x509_get_serial (mbedtls_x509_crt *cert, struct 
> gc_arena *gc)
>    if (!mbed_ok(mbedtls_mpi_write_string(&serial_mpi, 10, buf, buflen, 
> &buflen)))
>      {
>        msg(M_WARN, "Failed to write serial to string.");
> -      return NULL;
> +      buf = NULL;
> +      goto end;
>      }
>  
> +end:
> +  mbedtls_mpi_free(&serial_mpi);
>    return buf;
>  }

ACK - *but* Ivo did this work for us (Fox-IT), so some external eyes
before applying are welcome.

-Steffan

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