{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90373",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.808Z",
        "datePublished": "2026-09-17T16:09:13.368Z",
        "dateUpdated": "2026-10-21T12:51:22.474Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:51:22.474Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: clear wcid mask under mutex after RCU pointer clear\n\nmt7915_remove_interface() cleared the wcid mask bit with no lock held and\nbefore clearing the RCU wcid pointer. The mask is a non-atomic RMW shared\nwith the allocators, which all run under dev->mt76.mutex; on DBDC the two\nwiphys share one mt76_dev, so this raced add_interface/sta_add on the\nother band and could leak or double-hand-out a wcid. Clearing the bit\nbefore the RCU pointer also let a concurrent allocation reuse the index\nand publish its wcid, which the subsequent NULL assignment then wiped.\nMove the clear into the existing mutex section, after the RCU pointer is\ncleared."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/mediatek/mt76/mt7915/main.c"
                    ],
                    "versions": [
                        {
                            "version": "f3049b88b2b32326df97461813ae73e8bbc296fc",
                            "lessThan": "5dce25f1d609ba991a9c22c27be586c92f03ed77",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f3049b88b2b32326df97461813ae73e8bbc296fc",
                            "lessThan": "b4a41a47a67c788e6b0625fa517ec8872e99bb6c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f3049b88b2b32326df97461813ae73e8bbc296fc",
                            "lessThan": "a97b2b942d2f8f12fbd6a7caafc735d1ad115e6b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f3049b88b2b32326df97461813ae73e8bbc296fc",
                            "lessThan": "6486e11a6e2f679597af2d5bb48c3b07a2b2a7ba",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a582b1d54313dcdc96e7d8e1f49495dd71ddaf3e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.6.160",
                            "lessThan": "6.7",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/mediatek/mt76/mt7915/main.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12",
                            "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": "6.12",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "7.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.160"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/5dce25f1d609ba991a9c22c27be586c92f03ed77"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b4a41a47a67c788e6b0625fa517ec8872e99bb6c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a97b2b942d2f8f12fbd6a7caafc735d1ad115e6b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6486e11a6e2f679597af2d5bb48c3b07a2b2a7ba"
                }
            ],
            "title": "wifi: mt76: mt7915: clear wcid mask under mutex after RCU pointer clear",
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}