{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-92506",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-16T12:21:13.872Z",
        "datePublished": "2026-09-17T16:10:18.067Z",
        "dateUpdated": "2026-10-19T09:04:12.365Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:04:12.365Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix requested device removal race\n\nscmi_protocol_device_unrequest() drops scmi_requested_devices_mtx while\nnotifying listeners but continues to retain the per-protocol list head.\nWhen two SCMI drivers for the same protocol unregister concurrently, one\nthread can remove the final request and free the list head while the other\nis running its notifier. The latter then dereferences the freed list head\nafter reacquiring the mutex and can free it a second time.\n\nComplete the list and IDR updates, including freeing an empty list head,\nbefore dropping the mutex. Keep the blocking notifier outside the critical\nsection and retain only the detached request across the callback."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/firmware/arm_scmi/bus.c"
                    ],
                    "versions": [
                        {
                            "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
                            "lessThan": "2ff7713b7308cd6bea3328f7cd750b5eaab42af3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
                            "lessThan": "1c35915eaaa81a12340c838c5c2ccb02be2194c3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
                            "lessThan": "c3d4ef1c0ca6917aad6f1093b49f3932944a8c19",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
                            "lessThan": "21d35c5f46e99e9047bb9ded3ecb5ab440dd75b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d3cd7c525fd2ecce3a6c963f314969a54783d211",
                            "lessThan": "2c4097e6c4aed276c5e9ec2ab331ab397ea780bf",
                            "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/firmware/arm_scmi/bus.c"
                    ],
                    "versions": [
                        {
                            "version": "6.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "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": "6.3",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.3",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2ff7713b7308cd6bea3328f7cd750b5eaab42af3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1c35915eaaa81a12340c838c5c2ccb02be2194c3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c3d4ef1c0ca6917aad6f1093b49f3932944a8c19"
                },
                {
                    "url": "https://git.kernel.org/stable/c/21d35c5f46e99e9047bb9ded3ecb5ab440dd75b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2c4097e6c4aed276c5e9ec2ab331ab397ea780bf"
                }
            ],
            "title": "firmware: arm_scmi: Fix requested device removal race",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}