{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-4149",
        "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 rc6"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-667"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2026485",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2026485"
            },
            {
                "refsource": "MISC",
                "name": "https://lkml.org/lkml/2021/10/18/885",
                "url": "https://lkml.org/lkml/2021/10/18/885"
            },
            {
                "refsource": "MISC",
                "name": "https://lkml.org/lkml/2021/9/13/2565",
                "url": "https://lkml.org/lkml/2021/9/13/2565"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update",
                "url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem."
            }
        ]
    }
}