{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74546",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.914Z",
        "datePublished": "2026-08-15T12:27:55.147Z",
        "dateUpdated": "2026-08-19T16:38:34.886Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-19T16:38:34.886Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read\n\nIf the fan data becomes 0 between the FAN_DATA_VALID() check and the\nFAN_PERIOD_TO_RPM() conversion, it will result in a divide-by-zero crash\ndue to a race with a concurrent update of the cached fan value.\n\nFix a TOCTOU issue by reading fan data once."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/adt7470.c"
                    ],
                    "versions": [
                        {
                            "version": "fc958a61ff6d34a0ec42744d3ff524ee202b2e9f",
                            "lessThan": "689a2ea75434131d0af58aeb7d51fde40e858b4d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fc958a61ff6d34a0ec42744d3ff524ee202b2e9f",
                            "lessThan": "009240d057e26831cc925feaba4c490209c1d0ba",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fc958a61ff6d34a0ec42744d3ff524ee202b2e9f",
                            "lessThan": "d328175045176f85c15c369bd21dc551351e7935",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fc958a61ff6d34a0ec42744d3ff524ee202b2e9f",
                            "lessThan": "832069bec79cf6f903441c5769d3cdba95d0af33",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fc958a61ff6d34a0ec42744d3ff524ee202b2e9f",
                            "lessThan": "96ad57d31763559d376416cdf3bf5ae79bbbebec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fc958a61ff6d34a0ec42744d3ff524ee202b2e9f",
                            "lessThan": "76963b04b2d1c648d69949d8dd521e1ff7f40b51",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fc958a61ff6d34a0ec42744d3ff524ee202b2e9f",
                            "lessThan": "1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3",
                            "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/hwmon/adt7470.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "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": "6.6.151",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.103",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.44",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.8",
                            "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": "5.15",
                                    "versionEndExcluding": "5.15.216"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.1.183"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.6.151"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.12.103"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "6.18.44"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.1.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/689a2ea75434131d0af58aeb7d51fde40e858b4d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/009240d057e26831cc925feaba4c490209c1d0ba"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d328175045176f85c15c369bd21dc551351e7935"
                },
                {
                    "url": "https://git.kernel.org/stable/c/832069bec79cf6f903441c5769d3cdba95d0af33"
                },
                {
                    "url": "https://git.kernel.org/stable/c/96ad57d31763559d376416cdf3bf5ae79bbbebec"
                },
                {
                    "url": "https://git.kernel.org/stable/c/76963b04b2d1c648d69949d8dd521e1ff7f40b51"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1b46fe9dc8f8de59310f37e6c5e5c0e05ded46c3"
                }
            ],
            "title": "hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read",
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                "engine": "bippy-1.2.0"
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    }
}