How to Fix CVE-2022-0847-DirtyPipe Vulnerability?

Fix Dirty Pipe Vulnerabilities in Linux Kernel

When it comes to computer security, some problems are like hidden traps. They can cause big issues if not fixed quickly. One such problem has been found in the software that many computers and phones use – “CVE-2022-0847.” This vulnerability is also commonly known as Dirty Pipe Vulnerability.

If you are not aware of what this vulnerability is all about, as in – What causes it? Am I affected or not? How to resolve it? And much more, don’t fret! We have got you covered. This article will cover everything that there is to know about the Dirty Pipe vulnerability. So read the article till the end and keep your computers and phones safe.

What is a Dirty Pipe Vulnerability?

The CVE-2022-0847, widely known as Dirty Pipe Vulnerability, is a notable flaw in the Linux operating system. This flaw presents a significant security risk. It allows users, who normally have limited access, to overwrite files that are meant to be – “read-only

This issue impacts “n” number of devices, including computers and smartphones, mainly running on Linux. Notably, it impacts endpoints running Linux with a kernel version 5.8 or higher. Many devices using “Android 12” and “Linux fall” under this category.

The CVE-2022-0847 vulnerability opens doors for severe security threats. Attackers can exploit or take advantage of this flaw to insert harmful software like – “malware” and “ransomware” into the system.

What Causes the CVE-2022-0847-DirtyPipe Vulnerability?

The Dirty Pipe vulnerability arises from a specific issue in Linux’s coding. It’s due to an oversight involving an ‘uninitialized variable‘ in the system. This variable, known as pipe_buffer.flags, is not set up correctly. Because of this, the system mistakenly allows changes to files that should be off-limits.

Usually, these files are – “read-only,” meaning they shouldn’t be – “altered.” This coding mistake bypasses usual restrictions. It lets users without full access change files they shouldn’t be able to. This coding error makes the system vulnerable to unauthorized access and manipulation.

How do I find out if I am affected?

Case 1: Linux Users

  1. Open your command terminal.
  2. Type in uname -srm and press Enter.
  3. Check the output for your Linux kernel version. If it shows version 5.8 or newer, you are likely affected.

Case 2: Android Users

  1. Go to your device’s “Settings.”
  2. Navigate to “About Phone” or “About Device.”
  3. Select “Android Version” or a similar option.
  4. Look for the “Kernel Version.” If it’s 5.8 or above, your mobile device may be at risk.

How to Resolve the Dirty Pipe Vulnerability in Linux Kernel -CVE-2022-0847?

Case 1: If You Are a Linux User

Linux users with kernel version 5.8 or higher need to patch their system. Most Linux distributions have already made patches available for this vulnerability. If you haven’t updated the version, follow the steps mentioned below to do so by using the Mainline (GUI tool):

  • Access the Terminal on your Linux system.
  • Enter the following commands:
    • sudo apt-add-repository -y ppa:cappelikan/ppa.
    • sudo apt update
    • sudo apt install mainline
  • After installation, open the Ubuntu Mainline Kernel Installer app.
  • In the Mainline app, select the kernel version you want to install.
  • Click Install to start the installation of the chosen kernel.
  • After installation, the new kernel will not be immediately active.
  • Restart your computer to boot into the new kernel.
  • Open the Terminal again.
  • Enter the uname -rs command to verify that your system is running the updated kernel version.

Case 2: If You Are an Android User

For Android users, staying updated is key to protecting against vulnerabilities like CVE-2022-0847. Since this issue is addressed through – “system updates” released by – “device manufacturers,” ensuring your device is up-to-date is paramount.

Follow the steps mentioned below to check for and apply necessary updates to safeguard your Android device:

  • Go to Settings on your Android device.
  • Select System > Advanced.
  • Tap on System Update or Software Update.
  • Download and install any available updates.
  • Enable automatic updates, if available.
  • Restart your device after the update.
  • Verify the update in Software Information, if desired.


The Dirty Pipe Vulnerability (CVE-2022-0847) poses a risk to Linux-based systems and some Android devices. To stay secure, review your device’s status and update accordingly.

Linux users can – “patch their systems” and Android users should ensure their devices are – “regularly updated” through system updates from manufacturers. These steps can improve your device’s security and protect against potential threats.

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Janki Mehta

Janki Mehta

Janki Mehta is a Cyber-Security Enthusiast who constantly updates herself with new advancements in the Web/Cyber Security niche. Along with theoretical knowledge, she also implements her practical expertise in day-to-day tasks and helps others to protect themselves from threats.