Vulnerability in Kernel: Fix error handling of scsi_host_alloc()
Summary
GSD-2021-1000967: scsi: core: Fix error handling of scsi_host_alloc(). Affects Kernel versions < 7a696ce1d5d16a33a6cd6400bbcc0339b2460e11. 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 components, and enables the execution of user programs. The scsi_host_alloc() function in the Kernel is responsible for allocating and initializing SCSI host structures. These structures are essential for managing SCSI devices and handling input/output operations. However, a vulnerability has been identified in the error handling of scsi_host_alloc(), which could potentially lead to security issues.
Vulnerability Detail
The vulnerability in the scsi_host_alloc() function of the Kernel arises from improper error handling. When an error occurs during the allocation and initialization of SCSI host structures, the function fails to handle the error properly, potentially leaving the system in an inconsistent state. This vulnerability could be exploited by an attacker to cause a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The 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 specific workaround mentioned for this vulnerability. However, users can consider updating their Linux Kernel to the patched version as mentioned in the 'how_to_fix' section.
Conclusion
In conclusion, a vulnerability has been identified in the scsi_host_alloc() function of the Kernel, which could potentially lead to security issues. It is recommended to update the Linux Kernel to version v5.10.44 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a core component of the Linux operating system that manages system resources, facilitates communication between different components, and enables the execution of user programs.
The scsi_host_alloc() function is responsible for allocating and initializing SCSI host structures in the Kernel. These structures are essential for managing SCSI devices and handling input/output operations.
The impact of this vulnerability is not yet proven. However, it could potentially lead to a denial-of-service (DoS) condition or allow an attacker to execute arbitrary code with elevated privileges.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.44 or later. The fix can be found in commit 7a696ce1d5d16a33a6cd6400bbcc0339b2460e11 of the Linux Kernel repository.
There is no specific workaround mentioned for this vulnerability. However, updating the Linux Kernel to the patched version can mitigate the issue.
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