{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74661",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.924Z",
        "datePublished": "2026-08-22T15:32:34.414Z",
        "dateUpdated": "2026-08-22T15:32:34.414Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:32:34.414Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: fix netdev use-after-free in beacon worker\n\nmac802154_beacon_worker() reads local->beacon_req under RCU and derives\nthe sub-interface from the request, but then drops the RCU read lock and\ncontinues to use both sdata and the embedded wpan_dev.\n\nmac802154_stop_beacons_locked() cancels only pending beacon work, clears\nlocal->beacon_req and frees the request.  A beacon worker that is already\nrunning can therefore continue after interface teardown and dereference\nthe freed netdev private area.\n\nThe scan worker already pins the netdev before leaving RCU.  Apply the\nsame lifetime rule to the beacon worker: take a netdev reference while\nthe request is still protected by RCU, and release it on all paths that\ncontinue after the reference is acquired."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mac802154/scan.c"
                    ],
                    "versions": [
                        {
                            "version": "3accf4762734a69ebd03cba989249c78ac7dfc7e",
                            "lessThan": "fe820dcc1d8ff77783a9d2bcc93b98c99ac6d517",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3accf4762734a69ebd03cba989249c78ac7dfc7e",
                            "lessThan": "e5fb0e03bc7f45508c182a427357bf6b389a9033",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3accf4762734a69ebd03cba989249c78ac7dfc7e",
                            "lessThan": "e6cd416a899edc912b428c4ba399bd73f516cb31",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3accf4762734a69ebd03cba989249c78ac7dfc7e",
                            "lessThan": "9d067e581597c462c51fee8a30b51bc48a68c4e1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3accf4762734a69ebd03cba989249c78ac7dfc7e",
                            "lessThan": "5f26a690e8efa54315e4922368daf54e0b8f5515",
                            "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/mac802154/scan.c"
                    ],
                    "versions": [
                        {
                            "version": "6.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.152",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.104",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.45",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.9",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "6.3",
                                    "versionEndExcluding": "6.6.152"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.12.104"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.18.45"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/fe820dcc1d8ff77783a9d2bcc93b98c99ac6d517"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e5fb0e03bc7f45508c182a427357bf6b389a9033"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e6cd416a899edc912b428c4ba399bd73f516cb31"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9d067e581597c462c51fee8a30b51bc48a68c4e1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5f26a690e8efa54315e4922368daf54e0b8f5515"
                }
            ],
            "title": "mac802154: fix netdev use-after-free in beacon worker",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}