net/qla3xxx: Fix schedule while atomic in ql_sem_spinlock
Summary
GSD-2021-1000889: net/qla3xxx: fix schedule while atomic in ql_sem_spinlock. Affects Kernel versions < 3e324774411dc94282e166a301af822d75741263. No fix is published. How to fix ↓
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Background
The net/qla3xxx package is a part of the Linux Kernel ecosystem. It provides support for QLogic Fibre Channel Host Bus Adapters (HBAs) using the qla3xxx driver. These HBAs are commonly used for storage area networks (SANs) and other high-performance storage solutions. The qla3xxx driver allows communication between the Linux operating system and the QLogic HBAs. However, a vulnerability has been discovered in the qla3xxx driver that could potentially lead to a schedule while atomic issue.
Vulnerability Detail
The vulnerability in the qla3xxx driver arises from a schedule while atomic issue in the ql_sem_spinlock function. This issue can occur when a process attempts to acquire a spinlock while already holding a semaphore lock. In such a scenario, if the process is interrupted and rescheduled, it may end up causing a deadlock or other unexpected behavior. An attacker could potentially exploit this vulnerability to disrupt the normal operation of the system or gain elevated privileges. It is important to note that 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
In conclusion, the net/qla3xxx package in the Linux Kernel is vulnerable to a schedule while atomic issue in the ql_sem_spinlock function. This vulnerability has been fixed in Linux Kernel version v5.4.126. Users are advised to update their Linux Kernel to the latest version to ensure the security of their systems. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The net/qla3xxx package is a part of the Linux Kernel ecosystem and provides support for QLogic Fibre Channel Host Bus Adapters (HBAs) using the qla3xxx driver.
The impact of this vulnerability is not yet proven. However, it could potentially lead to system disruption or privilege escalation if exploited by an attacker.
To fix this vulnerability, users should update their Linux Kernel to version v5.4.126 or later.
No specific workarounds have been mentioned for this vulnerability.
For more details about this vulnerability, you can refer to the source link provided in the database_specific section of the vulnerability details.
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