Memory Leak Vulnerability in Linux Kernel - CVE-2022-49284
Summary
CVE-2022-49284: In the Linux kernel, the following vulnerability has been resolved: coresight: syscfg: Fix memleak on registration failure in cscfg_create_device device_register() calls device_initialize(), according to doc of device_in... 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 Linux operating systems, managing hardware resources and providing essential services for software applications. It is known for its stability, performance, and security features. However, like any complex software, it can have vulnerabilities. CVE-2022-49284 specifically affects the coresight subsystem, which is responsible for debugging and tracing in the kernel, highlighting the importance of maintaining robust memory management practices.
Vulnerability Detail
CVE-2022-49284 is a memory leak vulnerability that occurs during the registration process of the coresight subsystem in the Linux kernel. When the device_register() function is called, it invokes device_initialize(), which allocates resources. If the registration fails, the resources are not properly released, leading to a memory leak. This can result in increased memory consumption over time, potentially degrading system performance and stability. The vulnerability arises from improper error handling in the device registration process.
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 mentioned for this vulnerability. The best course of action is to apply the patch as soon as it is available.
Conclusion
CVE-2022-49284 is a significant memory leak vulnerability in the Linux kernel that can impact system performance. Users are advised to update to the patched version 5.17.3-1 to mitigate this risk. Regular monitoring for vulnerabilities using tools like Vulert can help maintain software security.
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FAQ
CVE-2022-49284 is a memory leak vulnerability in the Linux kernel's coresight subsystem that can lead to increased memory consumption.
If exploited, this vulnerability can cause memory leaks, leading to degraded system performance and potential crashes over time.
Yes, a patch is available in version 5.17.3-1 of the Linux kernel. Users should update to this version or later.
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