CVE-2022-1263

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    CVE-2022-1263

    Published: 31 Aug 2022Last Modified: 12 Aug 2026

    Summary:

    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.

    References: https://access.redhat.com/security/cve/CVE-2022-1263, https://www.openwall.com/lists/oss-security/2022/04/07/1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/1xxx/CVE-2022-1263.json, https://nvd.nist.gov/vuln/detail/CVE-2022-1263, https://bugzilla.redhat.com/show_bug.cgi?id=2072698, https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- b2d229d4ddb17db541098b83524d901257e93845
    Fixed -None

    Affected versions

    Fixed in kernel v5.18-rc3

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-1263 | CVE-DB