Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
arch/x86/kvm/x86.c in the Linux kernel before 4.4 does not reset the PIT counter values during state restoration, which allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 拒绝服务漏洞
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 4.4之前版本的arch/x86/kvm/x86.c文件中存在安全漏洞，该漏洞源于程序在状态恢复期间没有限制PIT计数器。虚拟机端攻击者可借助零值利用该漏洞造成拒绝服务（除零错误和主机操作系统崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A