Vulnerability in Kernel: mmc: host: Return an error when ->enable_sdio_irq() ops is missing
Summary
GSD-2022-1002417: mmc: host: Return an error when ->enable_sdio_irq() ops is missing. Affects Kernel versions < 3fac2cb56ba5205547e296b193e52871f9dc3845. 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 is a critical component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities and services to enable the proper functioning of the system. The mmc (MultiMediaCard) subsystem within the Kernel handles communication with SD (Secure Digital) and MMC (MultiMediaCard) devices, such as memory cards. It includes various host controllers responsible for managing these devices. One of the operations performed by the host controllers is enabling the SDIO (Secure Digital Input Output) interrupt. However, a vulnerability has been identified in the mmc host controller code, specifically related to the absence of the ->enable_sdio_irq() operation.
Vulnerability Detail
The vulnerability in the mmc host controller code occurs when the ->enable_sdio_irq() operation is missing. This operation is responsible for enabling the SDIO interrupt, which allows the host controller to receive and handle interrupts from SDIO devices. Without this operation, the host controller fails to properly enable the SDIO interrupt, leading to potential issues with SDIO device communication and functionality. An attacker could potentially exploit this vulnerability to disrupt or manipulate the communication between the host controller and SDIO devices, resulting in a range of possible consequences, including data corruption, denial of service, or unauthorized access to sensitive information.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.14.276 or later. The fix for this vulnerability was implemented in commit 3fac2cb56ba5205547e296b193e52871f9dc3845 of the Linux Kernel. Updating to the latest version ensures that the missing ->enable_sdio_irq() operation is properly implemented in the mmc host controller code, mitigating the vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As this vulnerability can be addressed by updating the Linux Kernel, there is no specific workaround provided. It is recommended to follow the steps mentioned in the 'how_to_fix' section to update the Kernel to a version that includes the necessary fix.
Conclusion
In conclusion, the vulnerability in the mmc host controller code of the Kernel can lead to issues with SDIO device communication and functionality. It is crucial to update the Linux Kernel to version v4.14.276 or later, which includes the necessary fix for this vulnerability. Promptly applying the update will help mitigate the risk of potential exploitation and ensure the secure and reliable operation of systems utilizing SD and MMC devices. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability can lead to issues with SDIO device communication and functionality, potentially resulting in data corruption, denial of service, or unauthorized access to sensitive information.
You can use Vulert's playground at Vulert Scanner to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software, without requiring access to the code or installation.
At the time of this report, there are no known public exploits specifically targeting this vulnerability. However, it is important to promptly update the Linux Kernel to mitigate the risk of potential exploitation.
As this vulnerability is specifically related to the mmc host controller code, updating the Linux Kernel to a version that includes the necessary fix is the recommended approach to mitigate the vulnerability. There are no known alternative mitigations or workarounds provided for this specific issue.
You can find more information about this vulnerability in the GSD-2022-1002417 entry of the GSD database maintained by the Cloud Security Alliance. The source link for this vulnerability is provided in the 'affected' section of this report.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Follow Vulert in Google
Get more Vulert vulnerability and dependency-security updates in Google Search and AI results.