Refcount Leak in ata: pata_octeon_cf
Summary
GSD-2022-1003964: ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe. Affects Kernel versions >= 43f01da0f2794b464ade2ffe1f780c69d7ce7b75, < a4d3e5f1d7d4f8b5e3834fec0f057a762c55806b. No fix is published. How to fix ↓
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Background
The ata: pata_octeon_cf is a driver in the Linux Kernel that provides support for the Octeon CompactFlash (CF) interface. It allows communication between the CF card and the system. The driver manages the initialization, data transfer, and other operations related to the CF interface. However, a vulnerability has been discovered in the driver that can lead to a refcount leak.
Vulnerability Detail
The vulnerability in ata: pata_octeon_cf driver is caused by a refcount leak in the octeon_cf_probe function. When the driver is probed, it increments the refcount for the CF interface. However, if an error occurs during the probe process, the refcount is not properly decremented, leading to a leak. This can result in resource exhaustion and potential denial-of-service attacks. The vulnerability was introduced in version v3.8 of the Linux Kernel and has been fixed in version v4.14.283.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround available for this vulnerability. It is advised to apply the fix by updating the Linux Kernel.
Conclusion
The refcount leak vulnerability in ata: pata_octeon_cf driver can lead to resource exhaustion and potential denial-of-service attacks. It is crucial to update the Linux Kernel to version v4.14.283 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to resource exhaustion and potential denial-of-service attacks.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and it will provide real-time alerts for open-source vulnerabilities.
There is no known exploit for this vulnerability at the moment. However, it is important to apply the fix to prevent any potential attacks.
It is recommended to update the entire Linux Kernel to the fixed version. Manual patching may not address all aspects of the vulnerability and could introduce other issues.
You can find more information about this vulnerability in the GSD-2022-1003964 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003964.json
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