{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90135",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.788Z",
        "datePublished": "2026-09-17T16:06:34.543Z",
        "dateUpdated": "2026-10-21T12:50:00.333Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:50:00.333Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()\n\nsashiko is reporting that trying to read /sys/kernel/debug/ref_tracker/*\ncauses use-afer-free crash when either alloc_percpu() or dev_addr_init()\nin alloc_netdev_mqs() failed, for commit 4d92b95ff2f9 (\"net: add net device\nrefcount tracker infrastructure\") added ref_tracker_dir_exit() to only\nfree_netdev() path."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/core/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
                            "lessThan": "45be87c5195f34c0a51598bc91186f600be5c4c9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
                            "lessThan": "2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
                            "lessThan": "5fe03b5257095e2beef0bc79e1f068fbd09a24c7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
                            "lessThan": "63ab05e8f9654aa100d366c0236399fda6ffaab1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d",
                            "lessThan": "0b1c2af8a22c35cb099c735c2f63ea3ba757557d",
                            "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/core/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "5.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.17",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.2.6"
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                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.17",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/45be87c5195f34c0a51598bc91186f600be5c4c9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5fe03b5257095e2beef0bc79e1f068fbd09a24c7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/63ab05e8f9654aa100d366c0236399fda6ffaab1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b1c2af8a22c35cb099c735c2f63ea3ba757557d"
                }
            ],
            "title": "net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()",
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}