{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-68403",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-30T09:28:09.390Z",
        "datePublished": "2026-08-10T12:04:23.150Z",
        "dateUpdated": "2026-08-19T16:34:54.805Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-19T16:34:54.805Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: initialize SDIO data work before cleanup\n\nbrcmf_sdio_probe() stores the newly allocated bus in sdiodev->bus before\nallocating the ordered workqueue. If that allocation fails, the function\njumps to fail and calls brcmf_sdio_remove().\n\nbrcmf_sdio_remove() unconditionally cancels bus->datawork. Initialize the\nwork item before the first failure path that can reach brcmf_sdio_remove(),\nso the cleanup path always observes a valid work object.\n\nThis issue was found by our static analysis tool and then confirmed by\nmanual review of the probe error path and the remove-time work drain. The\nproblem pattern is an early setup failure that reaches a cleanup helper\nwhich cancels an embedded work item before its initializer has run.\n\nA QEMU PoC forced alloc_ordered_workqueue() to fail at the same point in\nbrcmf_sdio_probe(), before INIT_WORK(&bus->datawork) is reached. The\nresulting fail path calls brcmf_sdio_remove(), and DEBUG_OBJECTS reports\nthe invalid work drain with brcmf_sdio_probe() and brcmf_sdio_remove() in\nthe stack."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c"
                    ],
                    "versions": [
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "860887d22890417d43ef8298f0cc4865e29b54de",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "9a4be91e5bb032b34cb3c962f6d4f82e7ef09364",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "fb12c87ae855346321af72e57a93c146205f1090",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "f50a2b9e57a751e70ae9a272875d80d39eaccd6a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "6bd21ec8549a5854dd64204a66289952917a924c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "5c342437ea44bb829680ca9e4f683dd5b325b219",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "c73c3fc1c7ca5a927639f0884624cb244ba791e4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9982464379e81ece51ced03ebecbbcd34ea367a6",
                            "lessThan": "2a665946e0407a05a3f81bd56a08553c446498e0",
                            "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/broadcom/brcm80211/brcmfmac/sdio.c"
                    ],
                    "versions": [
                        {
                            "version": "4.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.265",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.216",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.148",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.101",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.42",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.6",
                            "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": "4.1",
                                    "versionEndExcluding": "5.10.265"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.1",
                                    "versionEndExcluding": "5.15.216"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.1",
                                    "versionEndExcluding": "6.1.183"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.1",
                                    "versionEndExcluding": "6.6.148"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.1",
                                    "versionEndExcluding": "6.12.101"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.1",
                                    "versionEndExcluding": "6.18.42"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.1",
                                    "versionEndExcluding": "7.1.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.1",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/860887d22890417d43ef8298f0cc4865e29b54de"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9a4be91e5bb032b34cb3c962f6d4f82e7ef09364"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fb12c87ae855346321af72e57a93c146205f1090"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f50a2b9e57a751e70ae9a272875d80d39eaccd6a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6bd21ec8549a5854dd64204a66289952917a924c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5c342437ea44bb829680ca9e4f683dd5b325b219"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c73c3fc1c7ca5a927639f0884624cb244ba791e4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2a665946e0407a05a3f81bd56a08553c446498e0"
                }
            ],
            "title": "wifi: brcmfmac: initialize SDIO data work before cleanup",
            "x_generator": {
                "engine": "bippy-1.2.0"
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    }
}