Memory Leak Vulnerability in virtio-blk Package
Summary
GSD-2021-1001477: virtio-blk: Fix memory leak among suspend/resume procedure. Affects Kernel versions < 381bde79d11e596002edfd914e6714291826967a. No fix is published. How to fix ↓
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Background
The virtio-blk package is a component of the Linux Kernel ecosystem. It provides a virtual block device driver for the VirtIO framework, allowing virtual machines to access block devices efficiently. This package is widely used in virtualization environments to enable disk I/O operations. However, a vulnerability has been discovered in the suspend/resume procedure of virtio-blk, leading to a memory leak issue.
Vulnerability Detail
The memory leak vulnerability in virtio-blk occurs during the suspend/resume procedure. When a virtual machine is suspended and then resumed, the virtio-blk driver fails to release certain memory resources, resulting in a memory leak. This can lead to a gradual depletion of available memory, potentially causing system instability or denial of service conditions. The vulnerability has been assigned the ID GSD-2021-1001477 and has been fixed in Linux Kernel version v4.4.276.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, the virtio-blk package in the Linux Kernel is vulnerable to a memory leak issue during the suspend/resume procedure. This vulnerability can lead to memory depletion and potential system instability. To mitigate the vulnerability, it is recommended to update the Linux Kernel to version v4.4.276 or later. For further support on vulnerability remediation, contact DevNack.com.
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FAQ
virtio-blk is a virtual block device driver for the VirtIO framework in the Linux Kernel. It enables efficient disk I/O operations in virtual machines.
The memory leak vulnerability in virtio-blk can lead to a gradual depletion of available memory, potentially causing system instability or denial of service conditions.
To fix this vulnerability, update the Linux Kernel to version v4.4.276 or later, which includes the necessary fix for the memory leak issue in virtio-blk.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
For more information about this vulnerability, refer to the vulnerability ID GSD-2021-1001477 in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001477.json
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