CVE-2022-1263 Information

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.

Reference

https://www.openwall.com/lists/oss-security/2022/04/07/1 https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4 https://access.redhat.com/security/cve/CVE-2022-1263 https://bugzilla.redhat.com/show_bug.cgi?id=2072698