Vulnerability in i2c: acpi: fix resource leak in reconfiguration device addition
Summary
GSD-2021-1001577: i2c: acpi: fix resource leak in reconfiguration device addition. Affects Kernel versions >= 525e6fabeae286848592363bda13bc34b59bb5ac, < 60bacf259e8c2eb2324f3e13275200baaee9494b. No fix is published. How to fix ↓
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Background
The i2c package is a part of the Linux Kernel ecosystem and is responsible for managing the Inter-Integrated Circuit (I2C) bus communication protocol. This protocol allows for communication between various hardware components on a computer system. The ACPI (Advanced Configuration and Power Interface) subsystem in the kernel provides support for power management and device configuration. The vulnerability in the i2c: acpi module relates to a resource leak during the addition of reconfiguration devices.
Vulnerability Detail
The vulnerability in the i2c: acpi module occurs when reconfiguration devices are added, leading to a resource leak. This resource leak can potentially be exploited by an attacker to exhaust system resources, resulting in a denial-of-service (DoS) condition. The vulnerability was introduced in version v4.8 of the Linux Kernel and has been fixed in version v5.4.153. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in the i2c: acpi module can lead to a resource leak during the addition of reconfiguration devices. This vulnerability has been fixed in version v5.4.153 of the Linux Kernel. It is important to update the kernel to the latest version to ensure the security and stability of the system. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The i2c package is a part of the Linux Kernel ecosystem and is responsible for managing the Inter-Integrated Circuit (I2C) bus communication protocol.
ACPI stands for Advanced Configuration and Power Interface. It is a subsystem in the Linux Kernel that provides support for power management and device configuration.
A resource leak refers to a situation where system resources, such as memory or file handles, are not properly released after they are no longer needed. This can lead to resource exhaustion and potential system instability.
The impact of this vulnerability is a potential denial-of-service (DoS) condition, where an attacker can exploit the resource leak to exhaust system resources and disrupt normal system operation.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.4.153 or later. Instructions for updating the kernel can be found in the official documentation.
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