CVE-2022-1263 A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled

Description

A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

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