Kernel - Fix kernel panic during drive powercycle test
Summary
GSD-2021-1002357: scsi: mpt3sas: Fix kernel panic during drive powercycle test. Affects Kernel versions >= f92363d12359498f9a9960511de1a550f0ec41c2, < 5d4d50b1f159a5ebab7617f47121b4370aa58afe. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and interfaces with hardware devices. It manages system resources, facilitates communication between software and hardware, and ensures the stability and security of the system. The mpt3sas driver is responsible for supporting SAS (Serial Attached SCSI) host bus adapters manufactured by Broadcom. It allows the system to communicate with SAS devices such as hard drives and tape drives. However, a vulnerability has been identified in the mpt3sas driver that can lead to a kernel panic during a drive powercycle test.
Vulnerability Detail
The vulnerability in the mpt3sas driver arises when performing a drive powercycle test. A drive powercycle test involves repeatedly powering off and on a drive to simulate real-world scenarios. However, due to a flaw in the driver, this test can trigger a kernel panic, causing the system to crash. This vulnerability can be exploited by an attacker with local access to the system to cause a denial-of-service (DoS) condition. The impact of this vulnerability is limited to systems that utilize SAS host bus adapters with the mpt3sas driver. It is important to note that the actual attack plausibility and impact have not been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability.
Conclusion
The mpt3sas driver in the Kernel is vulnerable to a kernel panic during a drive powercycle test. This vulnerability can be mitigated by updating the Linux Kernel to version v4.4.294 or later. It is important to stay updated with the latest security patches to ensure the stability and security of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a kernel panic, causing the system to crash and resulting in a denial-of-service (DoS) condition. However, the actual attack plausibility and impact have not been proven.
This vulnerability can be exploited by an attacker with local access to the system.
Remote exploitation of this vulnerability is not possible as it requires local access to the system.
To mitigate the risk, it is recommended to update the Linux Kernel to version v4.4.294 or later.
Users can obtain the updated Kernel from the official Linux Kernel repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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