Vulnerability in Kernel Package: irqchip/gic-v3-its
Summary
GSD-2021-1001751: irqchip/gic-v3-its: Fix potential VPE leak on error. Affects Kernel versions >= 7d75bbb4bc1ad90386776459d37e4ddfe605671e, < e0c1c2e5da19685a20557a50f10c6aa4fa26aa84. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality. It provides essential services such as process management, memory management, and device drivers. The irqchip/gic-v3-its module within the Kernel package specifically handles interrupt handling for ARM-based systems. It allows devices to send interrupts to the processor, ensuring proper execution of tasks. However, a vulnerability has been discovered in this module that could potentially lead to a Virtual Processor Element (VPE) leak when encountering an error.
Vulnerability Detail
The vulnerability in irqchip/gic-v3-its module arises from a potential Virtual Processor Element (VPE) leak when an error occurs. Although the exact impact and attack plausibility have not been proven, this vulnerability could potentially be exploited by malicious actors to gain unauthorized access or disrupt the system's stability. The vulnerability was introduced in version v4.14 of the Linux Kernel and has been fixed in version v5.14.9 through commit e0c1c2e5da19685a20557a50f10c6aa4fa26aa84.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability. It is strongly advised to apply the fix mentioned above by updating the Kernel package to the recommended version.
Conclusion
The vulnerability in the irqchip/gic-v3-its module of the Kernel package could potentially lead to a Virtual Processor Element (VPE) leak, which may have security and stability implications. It is crucial to update the Kernel package to version v5.14.9 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality.
The irqchip/gic-v3-its module within the Kernel package handles interrupt handling for ARM-based systems, allowing devices to send interrupts to the processor.
A Virtual Processor Element (VPE) leak refers to a situation where a VPE, which is a virtual representation of a processor, is not properly released or deallocated, leading to resource wastage and potential system instability.
The exact impact and attack plausibility of this vulnerability have not been proven. However, it could potentially be exploited by malicious actors to gain unauthorized access or disrupt the system's stability.
To fix this vulnerability, it is recommended to update the Kernel package to version v5.14.9 or later. Detailed steps for updating the package can be found in the 'how_to_fix' section above.
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