Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
A NULL pointer dereference was found in the Linux kernel's KVM when dirty ring logging is enabled without an active vCPU context. An unprivileged local attacker on the host may use this flaw to cause a kernel oops condition and thus a denial of service by issuing a KVM_XEN_HVM_SET_ATTR ioctl. This flaw affects Linux kernel versions prior to 5.17-rc1.
CVSS Information
N/A
Vulnerability Type
空指针解引用
Vulnerability Title
Linux kernel 代码问题漏洞
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。KVM是其中的一个基于内核的虚拟机。overlayfs是其中的一套文件系统。 Linux Kernel 存在代码问题漏洞，攻击者可利用该漏洞通过kvm脏环get()强制在Linux内核上解除对NULL指针的引用，以触发拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A