CVEvulnerability
CVE-2022-1263
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-08-31
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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.
Affected configurations
• linux linux kernel (< 5.18)
• linux linux kernel 5.18
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://access.redhat.com/security/cve/CVE-2022-1263 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4 Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/04/07/1 Exploit, Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2022-1263 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4 Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/04/07/1 Exploit, Mailing List, Third Party Advisory