---
name: "memdup_user"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/memdup_user"
---

# memdup\_user(9)

duplicate memory region from user space

## NAME

memdup\_user - duplicate memory region from user space

## SYNOPSIS

**void \* memdup\_user(const void \_\_user \*** *src***, size\_t** *len***);**

## ARGUMENTS

*src*

source address in user space

*len*

number of bytes to copy

## DESCRIPTION

Returns an **ERR\_PTR** on failure.

## COPYRIGHT