From a5b65bed01686c160c4c7278affd0eae013b6299 Mon Sep 17 00:00:00 2001
From: Oskar Eichler <62393985+OskarEichler@users.noreply.github.com>
Date: Sat, 29 Aug 2026 21:40:50 +0200
Subject: [PATCH] Free native crypt buffers on failure

---
 ext/mri/bcrypt_ext.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ext/mri/bcrypt_ext.c b/ext/mri/bcrypt_ext.c
index 3e5ac1c..0abe1d2 100644
--- a/ext/mri/bcrypt_ext.c
+++ b/ext/mri/bcrypt_ext.c
@@ -98,7 +98,10 @@ static VALUE bc_crypt(VALUE self, VALUE key, VALUE setting) {
     value = bc_crypt_nogvl((void *)&args);
 #endif
 
-    if(!value || !args.data) return Qnil;
+    if(!value || !args.data) {
+        free(args.data);
+        return Qnil;
+    }
 
     out = rb_str_new2(value);