{"schema_version":"1.9.0","id":"CVE-2022-1263","published":"2022-08-31T15:33:00Z","modified":"2026-08-12T03:51:22.937710787Z","related":["SUSE-SU-2022:3585-1","SUSE-SU-2022:3844-1","SUSE-SU-2022:4617-1"],"details":"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.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/torvalds/linux","events":[{"introduced":"b2d229d4ddb17db541098b83524d901257e93845"},{"last_affected":"b2d229d4ddb17db541098b83524d901257e93845"}],"database_specific":{"extracted_events":[{"introduced":"Fixed in kernel v5.18-rc3"},{"last_affected":"Fixed in kernel v5.18-rc3"}],"source":"AFFECTED_FIELD"}}],"versions":["Fixed in kernel v5.18-rc3","v5.18-rc3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-1263.json"}}],"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2022-1263"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2022/04/07/1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/1xxx/CVE-2022-1263.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-1263"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2072698"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4"}],"database_specific":{"cna_assigner":"redhat","cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/1xxx/CVE-2022-1263.json"}}