{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49199",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T01:49:39.291Z",
        "datePublished": "2025-02-26T01:55:42.120Z",
        "dateUpdated": "2026-05-11T18:55:03.256Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T18:55:03.256Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()\n\nThis code checks \"index\" for an upper bound but it does not check for\nnegatives.  Change the type to unsigned to prevent underflows."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/core/nldev.c"
                    ],
                    "versions": [
                        {
                            "version": "3c3c1f1416392382faa0238e76a70d7810aab2ef",
                            "lessThan": "f6dd8669b8299a3a536cd92a7069152a7704da1d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3c3c1f1416392382faa0238e76a70d7810aab2ef",
                            "lessThan": "2a495ef04d5f42e6f00eb2bec1ee9075e3d5a771",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3c3c1f1416392382faa0238e76a70d7810aab2ef",
                            "lessThan": "87e0eacb176f9500c2063d140c0a1d7fa51ab8a5",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/core/nldev.c"
                    ],
                    "versions": [
                        {
                            "version": "5.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.16.19",
                            "lessThanOrEqual": "5.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.17.2",
                            "lessThanOrEqual": "5.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "5.16.19"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "5.17.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.16",
                                    "versionEndExcluding": "5.18"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f6dd8669b8299a3a536cd92a7069152a7704da1d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2a495ef04d5f42e6f00eb2bec1ee9075e3d5a771"
                },
                {
                    "url": "https://git.kernel.org/stable/c/87e0eacb176f9500c2063d140c0a1d7fa51ab8a5"
                }
            ],
            "title": "RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}