NFS: Fix an Oopsable condition in __nfs_pageio_add_request() - Kernel
Summary
GSD-2021-1000559: NFS: Fix an Oopsable condition in __nfs_pageio_add_request(). Affects Kernel versions >= a7d42ddb3099727f58366fa006f850a219cce6c8, < 15ac6f14787649e8ebd75c142e2c5d2a243c8490. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and interfaces with hardware devices. It manages system resources, facilitates communication between software and hardware, and supports various file systems, including NFS (Network File System). NFS allows remote file access over a network. The vulnerability in question affects the __nfs_pageio_add_request() function within the NFS implementation.
Vulnerability Detail
The vulnerability in __nfs_pageio_add_request() can lead to an Oopsable condition. This means that under certain circumstances, the function may trigger a kernel panic or crash, resulting in a denial-of-service (DoS) situation. The vulnerability was introduced in version v4.0 of the Linux Kernel and has been present until version v5.12.9. 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
No specific workaround has been provided for this vulnerability.
Conclusion
The vulnerability in __nfs_pageio_add_request() within the Kernel can lead to a kernel panic or crash, resulting in a denial-of-service (DoS) situation. It is recommended to update the Linux Kernel to version v5.12.9 or later to address this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a kernel panic or crash, resulting in a denial-of-service (DoS) situation.
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At the time of this report, no known exploits for this vulnerability have been disclosed.
The recommended mitigation is to update the Linux Kernel to version v5.12.9 or later.
The remote exploitability of this vulnerability has not been determined yet.
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