{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-4155",
        "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": "Fixed in Kernel v5.16"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-131 - Incorrect Calculation of Buffer Size"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://www.openwall.com/lists/oss-security/2022/01/10/1",
                "url": "https://www.openwall.com/lists/oss-security/2022/01/10/1"
            },
            {
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2034813",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2034813"
            },
            {
                "refsource": "MISC",
                "name": "https://access.redhat.com/security/cve/CVE-2021-4155",
                "url": "https://access.redhat.com/security/cve/CVE-2021-4155"
            },
            {
                "refsource": "MISC",
                "name": "https://security-tracker.debian.org/tracker/CVE-2021-4155",
                "url": "https://security-tracker.debian.org/tracker/CVE-2021-4155"
            },
            {
                "refsource": "MISC",
                "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79",
                "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=983d8e60f50806f90534cc5373d0ce867e5aaf79"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them."
            }
        ]
    }
}