{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-23221",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-01-13T15:37:45.987Z",
        "datePublished": "2026-02-18T14:53:24.391Z",
        "dateUpdated": "2026-05-11T22:02:39.852Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:02:39.852Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: fsl-mc: fix use-after-free in driver_override_show()\n\nThe driver_override_show() function reads the driver_override string\nwithout holding the device_lock. However, driver_override_store() uses\ndriver_set_override(), which modifies and frees the string while holding\nthe device_lock.\n\nThis can result in a concurrent use-after-free if the string is freed\nby the store function while being read by the show function.\n\nFix this by holding the device_lock around the read operation."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bus/fsl-mc/fsl-mc-bus.c"
                    ],
                    "versions": [
                        {
                            "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
                            "lessThan": "c71dfb7833db7af652ee8f65011f14c97c47405d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
                            "lessThan": "c424e72cfa67e7e1477035058a8a659f2c0ea637",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
                            "lessThan": "b1983840287303e0dfb401b1b6cecc5ea7471e90",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
                            "lessThan": "dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
                            "lessThan": "1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
                            "lessThan": "a2ae33e1c6361e960a4d00f7cf75d880b54f9528",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d",
                            "lessThan": "148891e95014b5dc5878acefa57f1940c281c431",
                            "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/bus/fsl-mc/fsl-mc-bus.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.201",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.164",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.127",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.74",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.11",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.1",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.10",
                                    "versionEndExcluding": "5.15.201"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.1.164"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.6.127"
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                                {
                                    "vulnerable": true,
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                                {
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                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.18.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.19.1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "7.0"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c71dfb7833db7af652ee8f65011f14c97c47405d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c424e72cfa67e7e1477035058a8a659f2c0ea637"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b1983840287303e0dfb401b1b6cecc5ea7471e90"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528"
                },
                {
                    "url": "https://git.kernel.org/stable/c/148891e95014b5dc5878acefa57f1940c281c431"
                }
            ],
            "title": "bus: fsl-mc: fix use-after-free in driver_override_show()",
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                "engine": "bippy-1.2.0"
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    }
}