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.

• CWE-476
• CWE-476

• https://access.redhat.com/security/cve/CVE-2022-1263Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2072698Issue Tracking, Patch, Third Party Advisory
• https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4Patch, Third Party Advisory
• https://www.openwall.com/lists/oss-security/2022/04/07/1Exploit, Mailing List, Third Party Advisory
• https://access.redhat.com/security/cve/CVE-2022-1263Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2072698Issue Tracking, Patch, Third Party Advisory
• https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4Patch, Third Party Advisory
• https://www.openwall.com/lists/oss-security/2022/04/07/1Exploit, Mailing List, Third Party Advisory

Published

Aug 31, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2022-1257Insecure storage of sensitive information vulnerability in M…5.5
• CVE-2022-1258A blind SQL injection vulnerability in the ePolicy Orchestra…7.2
• CVE-2022-1259A flaw was found in Undertow. A potential security issue in …7.5
• CVE-2022-1260Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
• CVE-2022-1261Matrikon, a subsidary of Honeywell Matrikon OPC Server (all …8.8
• CVE-2022-1262A command injection vulnerability in the protest binary allo…7.8
• CVE-2022-1264The affected product may allow an attacker with access to th…8.8
• CVE-2022-1265The BulletProof Security WordPress plugin before 6.1 does no…4.8
• CVE-2022-1266The Post Grid, Slider & Carousel Ultimate WordPress plugin b…4.8
• CVE-2022-1267The BMI BMR Calculator WordPress plugin through 1.3 does not…6.1
• CVE-2022-1268The Donate Extra WordPress plugin through 2.02 does not sani…6.1
• CVE-2022-1269The Fast Flow WordPress plugin before 1.2.12 does not saniti…6.1