Vulnerability in Kernel Package: irqchip/gic-v3
Summary
GSD-2022-1004759: irqchip/gic-v3: Fix error handling in gic_populate_ppi_partitions. Affects Kernel versions >= 52085d3f2028d853f8d6ce7ead2f8a504f6077fa, < 58e67c81e229351027d28c610638378606e33a08. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel package is a crucial component of the Linux operating system that provides core functionality and acts as an interface between the hardware and software layers. It includes various subsystems and drivers to manage system resources and facilitate communication between different components. The irqchip/gic-v3 module within the Kernel package is responsible for handling interrupts and managing the Generic Interrupt Controller (GIC) version 3. This module is commonly used in ARM-based systems to support interrupt handling and routing. However, a vulnerability has been identified in the gic_populate_ppi_partitions function of the irqchip/gic-v3 module.
Vulnerability Detail
The gic_populate_ppi_partitions function in irqchip/gic-v3 module suffers from an error handling issue. This vulnerability could potentially be exploited by an attacker to cause a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability arises due to improper error handling during the partitioning of Private Peripheral Interrupts (PPIs) in the GIC. An attacker could exploit this vulnerability by sending specially crafted requests to the affected system, leading to a system crash or arbitrary code execution.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a temporary workaround, users can disable the irqchip/gic-v3 module if it is not required for their system's functionality. This can be achieved by modifying the Kernel configuration and excluding the module from the build. However, it is important to note that disabling the module may result in the loss of interrupt handling capabilities for ARM-based systems that rely on the GIC version 3. Therefore, this workaround should only be considered if the module is not essential for the system's operation.
Conclusion
In conclusion, the Kernel package's irqchip/gic-v3 module is vulnerable to an error handling issue in the gic_populate_ppi_partitions function. This vulnerability could potentially lead to a denial-of-service (DoS) condition or arbitrary code execution. It is crucial for users to update their Kernel package to version v5.4.200 or later to mitigate this vulnerability. Alternatively, users can consider disabling the irqchip/gic-v3 module if it is not required for their system's functionality. Regularly monitoring for security updates and following best practices for system hardening are essential to maintain a secure environment. For further support or assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
This vulnerability could potentially lead to a denial-of-service (DoS) condition or allow an attacker to execute arbitrary code with elevated privileges. Exploiting this vulnerability could result in system crashes, data corruption, or unauthorized access to sensitive information.
Systems running the Linux Kernel with the irqchip/gic-v3 module are affected by this vulnerability. Specifically, ARM-based systems that utilize the Generic Interrupt Controller (GIC) version 3 for interrupt handling are at risk.
There is no evidence to suggest that this vulnerability has been exploited in the wild at the time of this report. However, it is crucial to apply the recommended fix or workaround to mitigate the risk of potential exploitation.
The recommended mitigation for this vulnerability is to update the Kernel package to version v5.4.200 or later. Additionally, users can consider disabling the irqchip/gic-v3 module if it is not essential for their system's operation. Regularly monitoring for security updates and following best practices for system hardening can also help mitigate the risk of exploitation.
For more information about this vulnerability, including technical details and the fix implementation, refer to the source link provided in the database_specific section of this report.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
