Platform Device Leak in Linux Kernel - CVE-2022-49283
Summary
CVE-2022-49283: In the Linux kernel, the following vulnerability has been resolved: firmware: sysfb: fix platform-device leak in error path Make sure to free the platform device also in the unlikely event that registration fails. Affects linux versions < 5.17.3-1. Fixed in 5.17.3-1. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, including Debian. It manages hardware resources and provides essential services for software applications. The kernel is crucial for system stability and performance. This vulnerability specifically affects the firmware subsystem, which handles low-level hardware interactions. The issue arises from a failure to properly manage platform device resources during error conditions, potentially leading to resource leaks.
Vulnerability Detail
CVE-2022-49283 is a vulnerability in the Linux kernel that occurs when the firmware subsystem fails to free a platform device in the event of registration failure. This oversight can lead to resource leaks, which may degrade system performance and stability over time. The vulnerability is particularly concerning in environments where resource management is critical, as it could result in exhaustion of available resources, leading to denial of service or other adverse effects.
How To Fix
Minimum fixed version
5.17.3-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the patch as soon as it is available.
Conclusion
CVE-2022-49283 is a significant vulnerability in the Linux kernel that can lead to resource leaks if not addressed. Users are strongly advised to update their systems to the patched version to ensure stability and performance. Regular monitoring for vulnerabilities using tools like Vulert can help maintain system security.
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FAQ
CVE-2022-49283 is a vulnerability in the Linux kernel related to improper management of platform devices during error conditions.
This vulnerability can lead to resource leaks, potentially degrading system performance and stability over time.
If you are using Debian 12 or Debian 13 with a kernel version prior to 5.17.3-1, your system is affected.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without any signup.
While there are no specific workarounds, it is crucial to plan for an update to mitigate the risks associated with this vulnerability.
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