Add missing check for NULL in validate_env_vars

diff --git a/plugins/sudoers/env.c b/plugins/sudoers/env.c
index 6e646410dd9515c773a866b3713ebb8415c8b0d2..7a17777661e343bf950318b0ceec10f665f9dcbb 100644 (file)
--- a/plugins/sudoers/env.c
+++ b/plugins/sudoers/env.c
@@ -750,6 +750,9 @@ validate_env_vars(char * const env_vars[])
     size_t len, blen = 0, bsize = 0;
     int okvar;
 
+    if (env_vars == NULL)
+       return;
+
     /* Add user-specified environment variables. */
     for (ep = env_vars; *ep != NULL; ep++) {
        if (def_secure_path && !user_is_exempt() &&