{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-31916",
        "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 5.12"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-787"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1946965",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1946965"
            },
            {
                "refsource": "MISC",
                "name": "https://github.com/torvalds/linux/commit/4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7a",
                "url": "https://github.com/torvalds/linux/commit/4edbe1d7bcffcd6269f3b5eb63f710393ff2ec7a"
            },
            {
                "refsource": "MISC",
                "name": "https://seclists.org/oss-sec/2021/q1/268",
                "url": "https://seclists.org/oss-sec/2021/q1/268"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability."
            }
        ]
    }
}