Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 安全漏洞
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。 Linux kernel 4.13.11之前的版本中的arch/powerpc/kvm/powerpc.c文件的‘kvm_vm_ioctl_check_extension’函数存在安全漏洞。本地攻击者可通过向/dev/kvm发送KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl调用利用该漏洞造成拒绝服务（空指针逆向引用和系统崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A