Fix memory leak

3 files changed, 9 insertions, 5 deletions

diff --git a/src/bun.js/api/bun.zig b/src/bun.js/api/bun.zig
index 324a6f9db..6fb3f0b4a 100644
--- a/src/bun.js/api/bun.zig
+++ b/src/bun.js/api/bun.zig
@@ -173,10 +173,10 @@ pub fn which(
         return JSC.JSValue.jsNull().asObjectRef();
     }
 
-    path_str = ZigString.Slice.fromUTF8(
+    path_str = ZigString.Slice.fromUTF8NeverFree(
         globalThis.bunVM().bundler.env.map.get("PATH") orelse "",
     );
-    cwd_str = ZigString.Slice.fromUTF8(
+    cwd_str = ZigString.Slice.fromUTF8NeverFree(
         globalThis.bunVM().bundler.fs.top_level_dir,
     );
 
diff --git a/src/bun.js/bindings/bindings.zig b/src/bun.js/bindings/bindings.zig
index 7aa148c4d..f041d32f7 100644
--- a/src/bun.js/bindings/bindings.zig
+++ b/src/bun.js/bindings/bindings.zig
@@ -203,7 +203,7 @@ pub const ZigString = extern struct {
         ptr: [*]const u8,
         len: u32,
 
-        pub fn fromUTF8(input: []const u8) Slice {
+        pub fn fromUTF8NeverFree(input: []const u8) Slice {
             return .{
                 .ptr = input.ptr,
                 .len = @truncate(u32, input.len),
@@ -479,7 +479,11 @@ pub const ZigString = extern struct {
 
         if (!this.isUTF8() and !strings.isAllASCII(untagged(this.ptr)[0..this.len])) {
             var buffer = this.toOwnedSlice(allocator) catch unreachable;
-            return Slice.fromUTF8(buffer);
+            return Slice{
+                .allocator = allocator,
+                .ptr = buffer.ptr,
+                .len = @truncate(u32, buffer.len),
+            };
         }
 
         return Slice{
diff --git a/src/bun.js/webcore/response.zig b/src/bun.js/webcore/response.zig
index 43b40b3b6..32e1e3f9b 100644
--- a/src/bun.js/webcore/response.zig
+++ b/src/bun.js/webcore/response.zig
@@ -3103,7 +3103,7 @@ pub const Blob = struct {
             input_path = .{ .fd = store.data.file.pathlike.fd };
         } else {
             input_path = .{
-                .path = ZigString.Slice.fromUTF8(store.data.file.pathlike.path.slice()),
+                .path = ZigString.Slice.fromUTF8NeverFree(store.data.file.pathlike.path.slice()),
             };
         }