CVE-2022-1263
Not scored
CVE-2022-1263
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.
Exploit probability
0.4%
Published
August 31, 2022
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
2 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2022-1263
View original source
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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/security/cve/CVE-2022-1263
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/1xxx/CVE-2022-1263.json
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4
- https://nvd.nist.gov/vuln/detail/CVE-2022-1263
- https://www.openwall.com/lists/oss-security/2022/04/07/1