{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46026",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.093Z",
        "datePublished": "2026-05-27T12:56:32.596Z",
        "dateUpdated": "2026-06-19T11:59:03.770Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-19T11:59:03.770Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Limit the maximum number of lookups\n\nCurrent code does no bound checking on the number of lookups a client can\nperform. Though the code restricts the lookups to local clients, there is\nstill a possibility of a malicious local client sending a flood of\nNEW_LOOKUP messages over the same socket.\n\nFix this issue by limiting the maximum number of lookups to 64 globally.\nSince the nameserver allows only atmost one local observer, this global\nlookup count will ensure that the lookups stay within the limit.\n\nNote that, limit of 64 is chosen based on the current platform\nrequirements. If requirement changes in the future, this limit can be\nincreased."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/qrtr/ns.c"
                    ],
                    "versions": [
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "bd69e0e8a7643ba5385f19f479e8e3da71f8d495",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "91cb30b6bb1880ba0748ca059bef50b8ac13793d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "6e3675251fcea06caecc61eb76462467558adfa6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "76adf8f69b0bb3ab20be7c58f5d555027332d113",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "20855cef7e659ef84ac73251256fa530819b2346",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "2b930bc77e00cb27e1d6e1d497b3b596283465ef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c2204a4ad710d95d348ea006f14ba926e842ffd",
                            "lessThan": "5640227d9a21c6a8be249a10677b832e7f40dc55",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/qrtr/ns.c"
                    ],
                    "versions": [
                        {
                            "version": "5.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.86",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.27",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.4",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "5.7",
                                    "versionEndExcluding": "5.10.259"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "5.15.210"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.1.176"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.6.140"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.12.86"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.18.27"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "7.0.4"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/bd69e0e8a7643ba5385f19f479e8e3da71f8d495"
                },
                {
                    "url": "https://git.kernel.org/stable/c/91cb30b6bb1880ba0748ca059bef50b8ac13793d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6e3675251fcea06caecc61eb76462467558adfa6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/76adf8f69b0bb3ab20be7c58f5d555027332d113"
                },
                {
                    "url": "https://git.kernel.org/stable/c/20855cef7e659ef84ac73251256fa530819b2346"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2b930bc77e00cb27e1d6e1d497b3b596283465ef"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5640227d9a21c6a8be249a10677b832e7f40dc55"
                }
            ],
            "title": "net: qrtr: ns: Limit the maximum number of lookups",
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}