{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-20321",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "kernel",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "kernel 5.15-rc5"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-362"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2013242",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2013242"
            },
            {
                "refsource": "MISC",
                "name": "https://lore.kernel.org/all/20211011134508.748956131@linuxfoundation.org/",
                "url": "https://lore.kernel.org/all/20211011134508.748956131@linuxfoundation.org/"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-5096",
                "url": "https://www.debian.org/security/2022/dsa-5096"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system."
            }
        ]
    }
}