[openssl/openssl] a595e9: Fix potential NULL deref in ssl_old_test.c

[Todd Short]

  Branch: refs/heads/openssl-3.2
  Home:   https://github.com/openssl/openssl
  Commit: a595e90032a246276c441cf7276a9cf8811a2aa4
      https://github.com/openssl/openssl/commit/a595e90032a246276c441cf7276a9cf8811a2aa4
  Author: Todd Short <todd.short at me.com>
  Date:   2023-10-26 (Thu, 26 Oct 2023)

  Changed paths:
    M test/ssl_old_test.c

  Log Message:
  -----------
  Fix potential NULL deref in ssl_old_test.c

Fix #22367

Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Hugo Landau <hlandau at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22383)

(cherry picked from commit 42772df59bef7422060fbe70551c72d804bc669a)