coap_mbedtls.c: Fix memory leak

obgm · Jun 27, 2022 · 8b9377e · 8b9377e
1 parent e8052b3
commit 8b9377e
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/coap_mbedtls.c b/src/coap_mbedtls.c
@@ -1073,6 +1073,8 @@ set_ciphersuites(mbedtls_ssl_config *conf, coap_enc_method_t method)
     pki_ciphers = mbedtls_malloc(pki_count * sizeof(pki_ciphers[0]));
     if (pki_ciphers == NULL) {
       coap_log(LOG_ERR, "set_ciphers: mbedtls_malloc with count %d failed\n", pki_count);
+      mbedtls_free(psk_ciphers);
+      psk_ciphers = NULL;
       return;
     }
 
@@ -2384,6 +2386,13 @@ void coap_dtls_startup(void)
 }
 
 void coap_dtls_shutdown(void) {
+#if COAP_CLIENT_SUPPORT
+  mbedtls_free(psk_ciphers);
+  mbedtls_free(pki_ciphers);
+  psk_ciphers = NULL;
+  pki_ciphers = NULL;
+  processed_ciphers = 0;
+#endif /* COAP_CLIENT_SUPPORT */
 }
 
 void *