Vulnerability in Kernel package: drm/panfrost
Summary
GSD-2022-1002610: drm/panfrost: Job should reference MMU not file_priv. Affects Kernel versions >= 7fdc48cc63a30fa3480d18bdd8c5fff2b9b15212, < 472dd7ea5e19a1aeabf1711ddc756777e05ee7c2. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's resources and providing an interface between hardware and software. The drm/panfrost module within the Kernel package is specifically designed for supporting the Panfrost graphics driver, which enables hardware acceleration for certain Mali GPUs. This vulnerability in the drm/panfrost module allows an attacker to reference the file_priv instead of the MMU, potentially leading to security breaches and unauthorized access to sensitive data.
Vulnerability Detail
The vulnerability arises from a flaw in the drm/panfrost module, where a job incorrectly references the file_priv instead of the MMU. This can be exploited by an attacker to bypass security measures and gain unauthorized access to sensitive information. The impact of this vulnerability can range from data leakage to privilege escalation, depending on the attacker's capabilities and the system's configuration. It is important to note that the actual impact and attack plausibility have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can disable the drm/panfrost module if it is not essential for their system's functionality. This can be achieved by blacklisting the module or removing it from the Kernel configuration. However, it is important to note that disabling the module may result in the loss of hardware acceleration for Mali GPUs.
Conclusion
The vulnerability in the drm/panfrost module of the Kernel package can potentially lead to security breaches and unauthorized access to sensitive data. It is crucial to update the Kernel package to the latest version to mitigate this vulnerability. Users can also consider disabling the module as a temporary workaround, although this may impact the performance of Mali GPUs. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel package is a crucial component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software.
The drm/panfrost module is a part of the Kernel package that supports the Panfrost graphics driver, enabling hardware acceleration for certain Mali GPUs.
The impact of this vulnerability can range from data leakage to privilege escalation, depending on the attacker's capabilities and the system's configuration.
To fix this vulnerability, it is recommended to update the Linux Kernel package to version v5.18.4 or later, which includes the necessary patch.
Yes, users can disable the drm/panfrost module if it is not essential for their system's functionality. However, this may result in the loss of hardware acceleration for Mali GPUs.
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