Use-after-free vulnerability in scsi: pm8001 package
Summary
GSD-2022-1000390: scsi: pm8001: Fix use-after-free for aborted TMF sas_task. Affects Kernel versions < d872e7b5fe38f325f5206b6872746fa02c2b4819. No fix is published. How to fix ↓
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Background
The scsi: pm8001 package is a component of the Linux Kernel ecosystem. It provides support for SAS (Serial Attached SCSI) host bus adapters based on the PM8001 chipset. These adapters are commonly used in server systems to connect storage devices. The package handles various tasks related to SAS communication, including handling Task Management Functions (TMFs).
Vulnerability Detail
The identified vulnerability in the scsi: pm8001 package is a use-after-free issue that occurs when a TMF sas_task is aborted. This vulnerability can be exploited by an attacker to execute arbitrary code or cause a denial-of-service condition. The use-after-free vulnerability arises from incorrect memory management, where a reference to freed memory is still accessed. 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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Conclusion
The use-after-free vulnerability in the scsi: pm8001 package has been addressed in Linux Kernel version v5.10.102. Users are advised to update their Linux Kernel to the fixed version to mitigate the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The scsi: pm8001 package is a component of the Linux Kernel ecosystem that provides support for SAS host bus adapters based on the PM8001 chipset.
A use-after-free vulnerability occurs when a program continues to use a memory reference after it has been freed, leading to potential security issues.
Task Management Functions (TMFs) in SAS are commands used to manage tasks related to SCSI devices, such as aborting or resetting tasks.
The use-after-free vulnerability in the scsi: pm8001 package could allow an attacker to execute arbitrary code or cause a denial-of-service condition.
To fix this vulnerability, users should update their Linux Kernel to version v5.10.102 or later.
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