Add OPENSSL_strdup failure check to cpt_ctrl() in bss_acpt.c

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11986)

diff --git a/crypto/bio/bss_acpt.c b/crypto/bio/bss_acpt.c
index 3523f68edddad5ac9bace1d246d7a19f716947f3..7f1af71e0f841eaaa4d7dfdbbf68e32702800a43 100644 (file)
--- a/crypto/bio/bss_acpt.c
+++ b/crypto/bio/bss_acpt.c
@@ -433,8 +433,10 @@ static long acpt_ctrl(BIO *b, int cmd, long num, void *ptr)
                 b->init = 1;
             } else if (num == 1) {
                 OPENSSL_free(data->param_serv);
-                data->param_serv = OPENSSL_strdup(ptr);
-                b->init = 1;
+                if ((data->param_serv = OPENSSL_strdup(ptr)) == NULL)
+                    ret = 0;
+                else
+                    b->init = 1;
             } else if (num == 2) {
                 data->bind_mode |= BIO_SOCK_NONBLOCK;
             } else if (num == 3) {