Kernel: Fix kernel panic during drive powercycle test
Summary
GSD-2021-1002389: scsi: mpt3sas: Fix kernel panic during drive powercycle test. Affects Kernel versions >= f92363d12359498f9a9960511de1a550f0ec41c2, < dd035ca0e7a142870a970d46b1d19276cfe2bc8c. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system that provides core functionalities and interfaces between hardware and software. It manages system resources, facilitates communication between different software components, and ensures the stability and security of the system. The mpt3sas driver in the Kernel is responsible for managing SAS (Serial Attached SCSI) host bus adapters. It allows communication between the operating system and SAS devices such as hard drives and tape drives.
Vulnerability Detail
A vulnerability has been discovered in the mpt3sas driver of the Kernel that can lead to a kernel panic during a drive powercycle test. When this vulnerability is triggered, it can cause the system to crash, resulting in a denial of service. The vulnerability was introduced in version v3.8 of the Kernel and was fixed in version v4.14.257. The exact 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 known workaround for this vulnerability at the moment.
Conclusion
The mpt3sas driver in the Kernel is vulnerable to a kernel panic during a drive powercycle test. This vulnerability can lead to a system crash and denial of service. It is recommended to update the Kernel to version v4.14.257 or later to fix this vulnerability. If you are unsure whether your system is affected, you can use the Vulert Playground (https://vulert.com/scanner) to check for vulnerabilities in your package-lock.json file. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can cause a kernel panic during a drive powercycle test, leading to a system crash and denial of service.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will analyze it for any known vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is always recommended to apply security patches and updates to mitigate any potential risks.
Yes, you can manually patch the Kernel by downloading the fixed version (v4.14.257 or later) from the official repository and compiling it. However, it is recommended to wait for your Linux distribution to release an updated package, as they often provide easier and more reliable methods for updating the Kernel.
You can find more information about this vulnerability in the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and the vulnerability database maintained by the Cloud Security Alliance (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1002xxx/GSD-2021-1002389.json).
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