Memory Leak in virtio-blk Package
Summary
GSD-2021-1001366: virtio-blk: Fix memory leak among suspend/resume procedure. Affects Kernel versions < 600942d2fd49b90e44857d20c774b20d16f3130f. No fix is published. How to fix ↓
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Background
The virtio-blk package is a virtual I/O device implementation for block devices in the Linux Kernel. It provides a virtualization interface for efficient and high-performance disk I/O operations. The package is widely used in virtualization environments to improve disk performance and scalability. However, a vulnerability has been discovered in the suspend/resume procedure of virtio-blk, leading to a memory leak.
Vulnerability Detail
The vulnerability in virtio-blk occurs during the suspend/resume procedure. When the device is suspended and then resumed, a memory leak can occur, resulting in the consumption of system resources. This can lead to performance degradation and potential denial-of-service conditions. The vulnerability has been identified and fixed in the Linux Kernel version v4.19.198 by commit 600942d2fd49b90e44857d20c774b20d16f3130f.
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. The recommended solution is to apply the fix by updating the Linux Kernel.
Conclusion
The memory leak vulnerability in virtio-blk during the suspend/resume procedure can have adverse effects on system performance and potentially lead to denial-of-service conditions. It is crucial to update the Linux Kernel to version v4.19.198 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
virtio-blk is a virtual I/O device implementation for block devices in the Linux Kernel. It provides a virtualization interface for efficient and high-performance disk I/O operations.
The vulnerability can result in a memory leak during the suspend/resume procedure of virtio-blk. This can lead to performance degradation and potential denial-of-service conditions.
To fix the vulnerability, update the Linux Kernel to version v4.19.198 or later. Apply the commit 600942d2fd49b90e44857d20c774b20d16f3130f to the kernel source code or update your Linux distribution to a version that includes the fixed kernel version.
There is no specific workaround mentioned for this vulnerability. The recommended solution is to apply the fix by updating the Linux Kernel.
For more information about this vulnerability, refer to the provided references link in the vulnerability details.
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