---
title: MBUF_EXT
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1644527-anonymous/mbuf_ext
---

# MBUF_EXT

## Declaration

```occ
MBUF_EXT = 0x0001
```

## Discussion

Discussion Indicates this mbuf has external data.