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.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20090630 CVE Request: kernel: kvm: failure to validate cr3 after KVM_SET_SREGS
Disclaimer: The entry creation date may reflect when
the CVE-ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
This is an entry on the CVE
list, which standardizes names for security