Hardening around not_resumable sessions

Make sure we can't inadvertently use a not_resumable session

Related to CVE-2024-2511

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from openssl/openssl#24044)

(cherry picked from commit c342f4b8bd2d0b375b0e22337057c2eab47d9b96)
Signed-off-by: Liu-Ermeng <liuermeng2@huawei.com>
Signed-off-by: hhhFun <fanghaojie@huawei.com>

ssl/ssl_sess.c

@@ -465,6 +465,12 @@ SSL_SESSION *lookup_sess_in_cache(SSL *s, const unsigned char *sess_id,
         ret = s->session_ctx->get_session_cb(s, sess_id, sess_id_len, &copy);
 
         if (ret != NULL) {
+            if (ret->not_resumable) {
+                /* If its not resumable then ignore this session */
+                if (!copy)
+                    SSL_SESSION_free(ret);
+                return NULL;
+            }
             tsan_counter(&s->session_ctx->stats.sess_cb_hit);
 
             /*