Back to updates
New releaseAug 20, 2026

duchamp-root v52c8d05bcf

Xiaomi K70e (duchamp) one-click root via CVE-2026-43499 (IonStack) + KernelSU integration

Share

中文 | English

visitor counter


GitHub release (latest by date) GitHub last commit Platform Android Kernel License

Proud user of JetBrains Mono
This README uses JetBrains Mono exclusively. Comic Sans is forbidden.

[!IMPORTANT] 🚨 Disclaimer

This exploit is for educational purposes only.

  • Unlocking bootloader may void your warranty.
  • Rooting your device may cause bootloop, data loss, or spontaneous combustion (probably not, but who knows).
  • I am not responsible if your K70e turns into a K70 brick.
  • If your girlfriend leaves you because you spent too much time rooting, that's a you problem.
  • 7̷̋̚1̸̽̈́0̵̛̅ ̸͛̿ù̶̈́n̸̓̋l̸̔̒o̸̔̒c̸̾̑k̵̇̚ ̷̊̒ḟ̷͝e̶̋̕s̵̋̚t̸̽̈́ ̵̔̋l̶̔̒e̸̓̋t̸̔̒s̵̋̚ ̸̾̑ġ̷̝o̷̊̒ ̵̛̅ḟ̷͝u̸̓̋c̷̋̚k̸̛̅i̶̽̈́n̵̔̋g̷̊̒ ̴͛̿g̶̾̑ơ̵̅

📖 中文版

🤔 这是什么

Xiaomi K70e (duchamp) 一键 Root 工具,基于 CVE-2026-43499 (IonStack) 内核漏洞提权,集成 KernelSU 守护进程。

通俗版:你点一下,手机就 root 了。就这么简单。

710 解锁节版:不是 711,不是 709,是 710。这一天我们不解锁手机,我们解放手机。

哲学版:当你在 /proc/ 里凝视深渊,深渊也在用 pipe_physrw 凝视你。


🎯 当前适配

设备代号芯片内核版本状态
Redmi K70EduchampMT6897 (Dimensity 8300)6.1.138-android14-11

其它机型见 src/targets/ 目录(原项目包含的参考配置,未实际验证)。


🧠 漏洞链

阶段技术描述
1. KASLR 泄漏pselect slide 侧信道利用 nfulnl_log_packet 数据别名读 _stext
2. FOPS 劫持pselect 任意栈写FUTEX_CMP_REQUEUE_PI + 竞争条件改 ops 表
3. 物理读写原语pipe_buffer ops 伪造伪造 pipe_buf_ops → 获得任意内核 phys rw
4. 提权patch cred + seccomp + selinux改 cred uid=0、cap 全满、关 seccomp、关 selinux
5. 持久化嵌入式 KernelSU写入并启动 ksud(KernelSU 守护进程)

🎭 用户故事

710 解锁节

用户: "我的 K70e 能解锁吗?"
我:   "不用解锁,直接 root。"
用户: "???"
我:   "w 710"
用户: "什么?"
我:   "710解锁节最新力作,不是解锁BL,是解放手机。"

第一次开机

用户: "为什么我的手机重启了?"
preload.so: "别慌,我在提权。"
用户: "KernelSU 是什么?"
preload.so: "就是你手机上现在跑的 root 管理器。"

KernelSU 集成

用户: "root 之后怎么管理?"
ksud: "你好,我是 KernelSU 守护进程。"
用户: "你能干什么?"
ksud: "我可以给应用授权 root。"
用户: "你不是系统自带的吧?"
ksud: "我是嵌入在 preload.so 里的。"
用户: "牛逼。"

翻车现场

用户: "我刷了你这个,变砖了!!!"
我:   "你什么机型?"
用户: "iPhone 14。"
我:   "......你认真的?"
用户: "我看你说 710 解锁节就来试试。"
我:   "710 是 Xiaomi 14 的代号之一,不是 iPhone 14。你走吧。"

⚙️ 工作原理

  1. 加载 preload.so — 注入任意应用(LD_PRELOAD),触发 __attribute__((constructor))
  2. 泄漏 KASLR 基址 — 通过 pselect 侧信道 + nfulnl_log_packet 数据别名读取 _stext
  3. 劫持 FOPS 表 — 利用 futex PI 竞争条件 + pipe 操作改写文件操作的 ops 指针
  4. 获得 phys rw — 伪造 pipe_buf_ops,实现任意内核物理地址读写
  5. 修补 cred — 找到 root child 进程的 cred,改 uid=0、cap 全满、sid=kernel
  6. 关安全机制 — 关 seccomp、清 TIF_SECCOMP、写 selinux enforce=0
  7. 启动 KernelSU — 提取嵌入的 ksud 到 /data/local/tmp/ksud,启动 KernelSU 守护进程

📦 使用方式

前置条件

  • Xiaomi K70e (duchamp) 或其它支持的设备
  • 已解锁 Bootloader(或不解锁的临时 root 也支持)
  • ADB 调试已开启
  • 一个不怕变砖的勇气

快速开始

# 从 Release 下载 preload.so
wget https://github.com/Colorful-glassblock/duchamp-root/releases/download/v1.0/preload.so

# 推送到设备
adb push preload.so /data/local/tmp/

# 通过 LD_PRELOAD 注入任意应用触发
adb shell
su -c "LD_PRELOAD=/data/local/tmp/preload.so your_app"

或者使用我们提供的注入脚本(TODO)。

自行编译

# 需要 NDK 或 Termux 的 aarch64-linux-android-clang
make PROJECT=duchamp

# 输出在 build/duchamp/bin/preload.so

📂 文件结构

├── Makefile                      # 构建系统
├── assets/
│   └── (待补充)
├── build/
│   └── embed/
│       └── ksud                  # 嵌入的 KernelSU 守护进程二进制
└── src/
    ├── main.c                    # 入口 + 线程管理
    ├── preload.c                 # LD_PRELOAD 加载器 + 嵌入式文件写入
    ├── root.c                    # 内核提权 + cred 修补 + su/ksud 安装
    ├── slide.c                   # KASLR 侧信道泄漏
    ├── fops.c                    # FOPS 劫持
    ├── pipe.c                    # pipe_buffer 物理读写原语
    ├── ksud_blob.S               # 嵌入 ksud 二进制
    ├── offset.h                  # 内核偏移通用头
    ├── common.h                  # 全局常量 + 函数声明
    ├── kernelsnitch/             # Kernelsnitch 绕过
    └── targets/
        ├── duchamp/
        │   └── target.h          # duchamp 专属偏移
        ├── blazer-CP2A.260605.012/
        ├── caiman-CP2A.260605.012.C1/
        ├── comet-CP2A.260605.012.C1/
        ├── komodo-CP2A.260605.012.C1/
        ├── tegu-CP2A.260605.012/
        ├── tokay-CP2A.260605.012/
        └── ...                   # 其它机型 target.h

🧩 依赖

  • aarch64-linux-android-clang(NDK r29 或 Termux 版本)
  • lld(LLVM 链接器)
  • make + git
  • 一颗强大的心脏(变砖预警)

🛡️ 免责声明

本工具仅供学习研究使用。
解锁 Bootloader 可能导致保修失效。
Root 设备可能导致变砖、数据丢失、银行 App 无法使用。
如果你因此被女朋友甩了,那是你自己的问题。
如果你刷了变砖来找我,我会笑你。
710解锁节快乐!🚀

💡 彩蛋 / FAQ

Q: 为什么叫 710 解锁节?
A: 7 月 10 日。不是 711(便利店),不是 709(不知道什么东西)。是 710。这一天我们不解锁 BL,我们解放手机。

Q: 710 和 Xiaomi 14 有什么关系?
A: Xiaomi 14 的代号之一是 frankel 开头的设备,不是 shennong。等等,710 是节日不是代号...

Q: QwQ?
A: 情绪稳定(假的)。

Q: 有 su 吗?
A: 没有,只有 KernelSU。需要 su 的话装个 KernelSU 管理器自己开。

Q: 支持其它机型吗?
A: 看 src/targets/ 目录。你的机型在里面就支持,不在就自己加。

Q: 我能在没有解锁 BL 的情况下用吗?
A: 可以,LD_PRELOAD 注入不需要解锁 BL。但是重启后需要重新注入。

Q: 会触发 Kernelsnitch 吗?
A: 已经内置了 Kernelsnitch 绕过,但如果你被检测到了,那是 skill issue。

Q: 114514?
A: はいはいわかりました草


710 footer


📖 English

🤔 What is This

Xiaomi K70e (duchamp) one-click root tool based on CVE-2026-43499 (IonStack) kernel exploit, integrated with KernelSU daemon.

Casual version: Click, root, done.

710 Festival version: July 10th. Not July 11th (convenience store), not July 9th (who cares). July 10th. On this day we don't unlock bootloaders, we liberate phones.

Philosophical version: When you stare into /proc/, /proc/ stares back at you with pipe_physrw.


🎯 Supported Devices

DeviceCodenameSoCKernelStatus
Redmi K70EduchampMT6897 (Dimensity 8300)6.1.138-android14-11

Other devices under src/targets/ are reference configs from the original project, not verified.


🧠 Exploit Chain

StageTechniqueDescription
1. KASLR leakpselect slide side-channelRead _stext via nfulnl_log_packet data alias
2. FOPS hijackpselect arbitrary stack writeFUTEX_CMP_REQUEUE_PI race → overwrite ops table
3. Phys rw primitiveForged pipe_buf_opsFake pipe buffer ops → arbitrary kernel physical rw
4. EscalationPatch cred + seccomp + selinuxuid=0, full caps, disable seccomp, disable selinux
5. PersistenceEmbedded KernelSUWrite and launch ksud (KernelSU daemon)

710 Festival

User: "Can I unlock my K70e?"
Dev:  "No need to unlock, just root."
User: "???"
Dev:  "w 710"
User: "What?"
Dev:  "710 Unlock Festival. Not unlocking BL, liberating phones."

First Boot

User: "Why did my phone reboot?"
preload.so: "Don't panic, I'm escalating privileges."
User: "Why is KernelSU on my phone?"
preload.so: "I put it there. You're welcome."

KernelSU Integration

User: "How do I manage root after this?"
ksud: "Hi, I'm the KernelSU daemon."
User: "What can you do?"
ksud: "Grant root to apps."
User: "You're not built-in?"
ksud: "I'm embedded in preload.so."
User: "Nice."

Brick Report

User: "I flashed your thing and now it's bricked!!!"
Dev:  "What device?"
User: "iPhone 14."
Dev:  "...You serious?"
User: "You said 710 Festival so I tried it."
Dev:  "710 is a Xiaomi 14 codename, not iPhone 14. Get out."

⚙️ How It Works

  1. Load preload.so — inject via LD_PRELOAD into any app, triggers __attribute__((constructor))
  2. Leak KASLR basepselect side-channel via nfulnl_log_packet data alias reads _stext
  3. Hijack FOPS table — futex PI race condition + pipe ops rewrite
  4. Get phys rw — forge pipe_buf_ops for arbitrary kernel physical memory access
  5. Patch cred — find root child task, patch uid=0, full caps, kernel sid
  6. Disable security — patch seccomp, clear TIF_SECCOMP, selinux enforce=0
  7. Launch KernelSU — extract embedded ksud to /data/local/tmp/ksud, start KernelSU daemon

📦 Usage

Prerequisites

  • Xiaomi K70e (duchamp) or other supported device
  • Unlocked bootloader (or not — LD_PRELOAD works either way)
  • ADB debugging enabled
  • A brave soul

Quick Start

# Download preload.so from Releases
wget https://github.com/Colorful-glassblock/duchamp-root/releases/download/v1.0/preload.so

# Push to device
adb push preload.so /data/local/tmp/

# Inject into any app via LD_PRELOAD
adb shell
LD_PRELOAD=/data/local/tmp/preload.so your_app

Build from Source

# Requires NDK or Termux aarch64-linux-android-clang
make PROJECT=duchamp

# Output at build/duchamp/bin/preload.so

📂 File Structure

├── Makefile
├── assets/
│   └── (TBD)
├── build/embed/ksud             # Embedded KernelSU daemon
└── src/
    ├── main.c, preload.c, root.c, slide.c, fops.c, pipe.c
    ├── ksud_blob.S               # Embedded ksud binary
    ├── su_daemon.c, offset.h, common.h
    ├── kernelsnitch/            # Kernelsnitch bypass
    └── targets/                 # Device-specific target.h files

🧩 Dependencies

  • aarch64-linux-android-clang (NDK r29 or Termux)
  • lld linker
  • make + git
  • A strong heart (brick warning)

🛡️ Disclaimer

This tool is for educational purposes only.
Unlocking BL may void warranty.
Rooting may cause bootloop, data loss, or app incompatibility.
If you brick your device, that's a skill issue.
If you blame me, that's a you problem.
If you laugh, you're one of us.
710 Unlock Festival! 🚀

💡 Trivia / FAQ

Q: Why "710 Unlock Festival"?
A: July 10th. Not convenience store day (7/11), not whatever July 9th is. July 10th. On this day we don't unlock bootloaders, we liberate phones.

Q: QwQ?
A: Emotionally stable (big lie).

Q: Can I use this without unlocking BL?
A: Yes. LD_PRELOAD injection doesn't need an unlocked BL. But you'll need to re-inject after reboot.

Q: Will this trigger Kernelsnitch?
A: Kernelsnitch bypass is included. If you still get caught, skill issue.

Q: 114514?
A: はいはいわかりました草


710 footer


Made with 💀, ☕, 710% effort, and absolutely zero Comic Sans

Categories