Memory Leak Vulnerability in thinkpad_acpi Kernel Module
Summary
GSD-2022-1004226: platform/x86: thinkpad_acpi: Fix a memory leak of EFCH MMIO resource. Affects Kernel versions >= 455cd867b85b53fd3602345f9b8a8facc551adc9, < 3884bf75fa044c73e843d95dd71a424e80ebb095. 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 thinkpad_acpi kernel module is responsible for providing support for various features and functionalities specific to ThinkPad laptops. It allows users to control and interact with different hardware components such as the hotkeys, backlight, fan, and docking station. The module communicates with the Embedded Controller (EC) firmware to manage these functionalities. However, a memory leak vulnerability has been identified in the EFCH MMIO resource of the thinkpad_acpi module.
Vulnerability Detail
The memory leak vulnerability in the EFCH MMIO resource of the thinkpad_acpi module can lead to the exhaustion of system memory resources over time. This can result in degraded system performance, instability, and potential denial-of-service conditions. An attacker with local access to the affected system may be able to exploit this vulnerability to exhaust system memory resources, leading to a system crash or other adverse effects. The vulnerability was introduced in Linux Kernel version v5.18 and has been fixed in version v5.18.10.
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
There is no specific workaround available for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel to the latest version.
Conclusion
The memory leak vulnerability in the thinkpad_acpi kernel module's EFCH MMIO resource can lead to system instability and potential denial-of-service conditions. It is crucial to update the Linux Kernel to version v5.18.10 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability can lead to the exhaustion of system memory resources, resulting in degraded system performance, instability, and potential denial-of-service conditions.
No, this vulnerability requires local access to the affected system to be exploited.
The vulnerability was introduced in Linux Kernel version v5.18 and has been fixed in version v5.18.10.
There are no known instances of this vulnerability being exploited in the wild at the time of this report.
The best way to mitigate the impact of this vulnerability is to update the Linux Kernel to the latest version, which includes the fix for this vulnerability.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
