Kernel: Fix kernel panic during drive powercycle test
Summary
GSD-2021-1002533: scsi: mpt3sas: Fix kernel panic during drive powercycle test. Affects Kernel versions >= f92363d12359498f9a9960511de1a550f0ec41c2, < 8485649a7655e791a6e4e9f15b4d30fdae937184. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages system resources and facilitates communication between hardware and software. It provides essential functionalities for the proper functioning of the system. The mpt3sas driver 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
The mpt3sas driver in the Kernel is vulnerable to a kernel panic during a drive powercycle test. This vulnerability can be triggered when performing specific actions related to power cycling of drives. A kernel panic can lead to a system crash, resulting in a denial of service. The vulnerability was introduced in version v3.8 of the Kernel and has been fixed in version v5.15.6.
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 v5.15.6 or later. This update includes the necessary patch to address the kernel panic issue. Users can obtain the updated Kernel from the official Linux Kernel repository.
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Workaround
There is no specific workaround available for this vulnerability. Updating the Kernel to the fixed version is the recommended solution.
Conclusion
The mpt3sas driver in the Linux 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 v5.15.6 or later to mitigate this issue. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
This vulnerability can lead to a kernel panic and system crash, resulting in a denial of service. It may disrupt normal system operations and require a system reboot to recover.
You can check the version of the Linux Kernel installed on your system. If it is a version prior to v5.15.6, your system may be vulnerable. Additionally, monitoring system logs for kernel panics during drive powercycle tests can indicate the presence of this vulnerability.
At the time of this report, there are no known public exploits targeting this specific vulnerability. However, it is always recommended to promptly apply security updates to mitigate potential risks.
No, this vulnerability requires local access to the system to trigger the drive powercycle test and potentially cause a kernel panic.
For more details about this vulnerability, including the specific code changes that fix it, you can refer to the provided references link in the vulnerability details section.
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