Critical NULL Pointer Dereference in Linux Kernel - CVE-2024-46727
Summary
CVE-2024-46727: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add otg_master NULL check within resource_log_pipe_topology_update [Why] Coverity reports NULL_RETURN warning. Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, responsible for managing hardware resources and providing essential services to software applications. It supports a wide range of hardware and is known for its stability and performance. However, vulnerabilities can arise, such as CVE-2024-46727, which affects the AMD display driver within the kernel, potentially leading to system instability or crashes.
Vulnerability Detail
CVE-2024-46727 is a vulnerability in the Linux kernel's AMD display driver that arises from a lack of a NULL check for the 'otg_master' variable within the resource_log_pipe_topology_update function. This oversight can lead to a NULL pointer dereference, causing the system to crash or become unresponsive. The vulnerability was identified through Coverity's static analysis tool, which reported a NULL_RETURN warning, highlighting the need for a code fix to enhance system reliability.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds available for this vulnerability. The best course of action is to apply the necessary updates as soon as they are available.
Conclusion
CVE-2024-46727 is a critical vulnerability in the Linux kernel's AMD display driver that can lead to system crashes due to a NULL pointer dereference. Users are strongly encouraged to update their systems to the latest kernel version to mitigate this risk. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
CVE-2024-46727 is a vulnerability in the Linux kernel's AMD display driver that can lead to a system crash due to a NULL pointer dereference.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. By uploading your manifest file like package-lock.json, you can check if your application is affected by CVE-2024-46727.
The vulnerability can cause system instability, crashes, or unresponsiveness, particularly affecting systems using the AMD display driver.
Yes, a patch has been released and users are advised to update their Linux kernel to the latest version to mitigate the vulnerability.
You can use tools like Vulert to receive real-time alerts for open-source vulnerabilities in your software, ensuring you are always informed about potential risks.
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