Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux Kernel kvm_arch_vcpu_ioctl_set_sregs()函数代码问题漏洞
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。 运行在x86系统上的Linux Kernel的KVM中kvm_arch_vcpu_ioctl_set_sregs函数没有正确地验证KVM_SET_SREGS调用中的页表根，本地用户可以通过提交特制的cr3值在gfn_to_rmap函数中触发空指针引用，导致受影响的系统崩溃 。
CVSS Information
N/A
Vulnerability Type
N/A