Vulnerability in Kernel: printk: wake waiters for safe and NMI contexts
Summary
GSD-2022-1003139: printk: wake waiters for safe and NMI contexts. Affects Kernel versions >= 03fc7f9c99c1e7ae2925d459e8487f1a6f199f79, < b2805b1bdd2ba7a5e003cd4c70c82699a284a487. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
The Kernel is a crucial component of the Linux operating system, responsible for managing system resources and facilitating communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The vulnerability in question affects the printk function, which is used for printing messages to the kernel log. This vulnerability specifically impacts the wake waiters for safe and NMI contexts, potentially leading to security issues.
Vulnerability Detail
The vulnerability arises from a flaw in the printk function within the Kernel. It was introduced in version v4.19 and fixed in version v5.17.14. The specific commit that addresses this vulnerability is b2805b1bdd2ba7a5e003cd4c70c82699a284a487. The vulnerability can be exploited to compromise the security of the system, although the actual impact and attack plausibility have not been proven. Further technical details regarding the vulnerability can be found in the provided references.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.17.14 or later. This update includes the necessary patch to address the flaw in the printk function. It is crucial to regularly update the Kernel to ensure the latest security fixes are applied.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
No workaround has been provided for this vulnerability. It is essential to update the Kernel to the fixed version as soon as possible.
Conclusion
The vulnerability in the Kernel's printk function poses a potential security risk. It is crucial to update the Linux Kernel to version v5.17.14 or later to mitigate this vulnerability. Regularly updating the Kernel is essential to ensure the latest security patches are applied. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability is not yet proven, but it has the potential to compromise the security of the system.
You can use Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it for any open-source vulnerabilities, including this one.
There is currently no known exploit for this vulnerability. However, it is still important to apply the necessary updates to mitigate any potential risks.
The remote exploitability of this vulnerability has not been determined. However, it is recommended to update the Kernel to the fixed version to minimize any potential risks.
The specific prerequisites for exploiting this vulnerability have not been disclosed. However, updating the Kernel to the fixed version is the best practice to ensure system security.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Follow Vulert in Google
Get more Vulert vulnerability and dependency-security updates in Google Search and AI results.