漏洞信息
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Vulnerability Title
Cloud Hypervisor: Use-after-free in virtio-block Async I/O Completion
Vulnerability Description
Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. From version 21.0 to before version 51.2, a guest can cause a use-after-free in the cloud-hypervisor process by submitting two virtio-block descriptor chains that reuse the same head_index while asynchronous block I/O is enabled (e.g. io_uring, aio). When the kernel completes the duplicate operation before the original, the completion path frees a bounce buffer that the kernel is still actively reading from or writing to, corrupting the freed memory. This issue has been patched in versions 51.2 and 52.0.
CVSS Information
N/A
Vulnerability Type
释放后使用
Vulnerability Title
Cloud hypervisor 资源管理错误漏洞
Vulnerability Description
Cloud hypervisor是Cloud hypervisor公司的适用于现代云工作负载的虚拟机监视器。 Cloud hypervisor 21.0版本至51.2之前版本存在资源管理错误漏洞,该漏洞源于提交两个重用相同head_index的virtio-block描述符链,可能导致释放后重用。
CVSS Information
N/A
Vulnerability Type
N/A