{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53317",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.398Z",
        "datePublished": "2026-06-26T19:41:09.868Z",
        "dateUpdated": "2026-06-26T19:41:09.868Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-26T19:41:09.868Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: Place upper limit on station AID\n\nAny station configured with an AID over 20 causes a firmware crash.\nThis situation occurred in our testing using an AP interface on 7922\nhardware, with a modified hostapd, sourced from Mediatek's OpenWRT\nfeeds.\n\nIn stock hostapd, station AIDs begin counting at 1, and this\nconfiguration is prevented with an upper limit on associated stations.\nHowever, the modified hostapd began allocation at 65, which caused the\nfirmware to crash. This fix does not allow these AIDs to work, but will\nprevent the firmware crash.\n\nThis crash was only seen on IFTYPE_AP interfaces, and the fix does not\nappear to have an effect on IFTYPE_STATION behavior."
                }
            ],
            "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/mt7921/main.c",
                        "drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h"
                    ],
                    "versions": [
                        {
                            "version": "5c14a5f944b91371961548b1907802f74a4d2e5c",
                            "lessThan": "6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c14a5f944b91371961548b1907802f74a4d2e5c",
                            "lessThan": "35835ff71e6e618155578b8e3905597edd5f601c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c14a5f944b91371961548b1907802f74a4d2e5c",
                            "lessThan": "1a4b802afe15c5b33b2dcb37a594aba2fa215d52",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5c14a5f944b91371961548b1907802f74a4d2e5c",
                            "lessThan": "4d0bf21e3e20619d51d06c0c36207aabab8b712c",
                            "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/net/wireless/mediatek/mt76/mt7921/main.c",
                        "drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h"
                    ],
                    "versions": [
                        {
                            "version": "5.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.91",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.33",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.10",
                            "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": "5.12",
                                    "versionEndExcluding": "6.12.91"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "6.18.33"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "7.0.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.12",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952"
                },
                {
                    "url": "https://git.kernel.org/stable/c/35835ff71e6e618155578b8e3905597edd5f601c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1a4b802afe15c5b33b2dcb37a594aba2fa215d52"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4d0bf21e3e20619d51d06c0c36207aabab8b712c"
                }
            ],
            "title": "wifi: mt76: mt7921: Place upper limit on station AID",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}