Critical Vulnerability in Linux Kernel: drm/amd/display Function Return Validation Issue
Summary
DEBIAN-CVE-2024-46775: In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Validate function returns [WHAT & HOW] Function return values must be checked before data can be used in subsequent functions. Affects linux versions < 6.10.11-1. Fixed in 6.10.11-1. How to fix ↓
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Background
The Linux kernel is a core component of many operating systems, providing essential services for hardware and software interaction. It is known for its robustness and versatility, supporting a wide range of devices and applications. However, vulnerabilities can arise, affecting system stability and security. The specific vulnerability in question pertains to the drm/amd/display subsystem, which is responsible for managing display outputs in AMD graphics hardware.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the drm/amd/display module, where function return values are not adequately validated before being used in subsequent operations. This oversight can lead to unchecked data being processed, potentially resulting in system instability or exploitation by malicious actors. The vulnerability was reported as part of a series of CHECKED_RETURN issues by Coverity, highlighting the importance of validating function outputs to ensure safe execution of code.
How To Fix
Minimum fixed version
6.10.11-1
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 by updating the kernel as described above.
Conclusion
The identified vulnerability in the Linux kernel's drm/amd/display module highlights the critical need for function return value validation. Users are urged to update their systems to the latest patched versions to mitigate potential risks. Regular monitoring and updates are essential for maintaining system security.
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FAQ
The vulnerability involves inadequate validation of function return values in the drm/amd/display module of the Linux kernel.
If you are using an older version of the Linux kernel prior to 6.10.11-1, your system may be vulnerable. You can check your kernel version using the command 'uname -r'.
Exploiting this vulnerability could lead to system instability or allow attackers to execute arbitrary code, compromising system security.
Yes, tools like Vulert can help monitor and alert for open-source vulnerabilities in your software without needing access to the code. You can check if your application is affected using the Vulert playground.
It is recommended to regularly check for updates and apply them promptly to ensure your system is protected against known vulnerabilities.
References
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