{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72394",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.924Z",
        "datePublished": "2026-08-15T05:56:21.707Z",
        "dateUpdated": "2026-08-17T05:13:48.410Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:13:48.410Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero\n\nSashiko reports:\n\nIn the aspeed-g6-pwm-tacho driver, the aspeed_tach_val_to_rpm() function\ncalculates the fan RPM using the tachometer value. However, it does not\ncheck if the tachometer value is zero before performing the division.\n\nIf the hardware reports a tachometer value of 0 (which can happen due to\nan extremely fast pulse, a stuck edge, or a hardware glitch), the\ncalculated tach_div evaluates to 0. The subsequent call to do_div() with\ntach_div as the divisor triggers a divide-by-zero exception, leading to\na kernel panic.\n\nCheck the divisor against zero to fix the problem."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/hwmon/aspeed-g6-pwm-tach.c"
                    ],
                    "versions": [
                        {
                            "version": "7e1449cd15d1096157d1a9923b82e37602fb7eb0",
                            "lessThan": "a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e1449cd15d1096157d1a9923b82e37602fb7eb0",
                            "lessThan": "898ca04b096b9e4640300eab91468c826a1ec92b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e1449cd15d1096157d1a9923b82e37602fb7eb0",
                            "lessThan": "fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7e1449cd15d1096157d1a9923b82e37602fb7eb0",
                            "lessThan": "fe87b8dc67f1b2c64e76a66e78468c533d3c44ca",
                            "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/aspeed-g6-pwm-tach.c"
                    ],
                    "versions": [
                        {
                            "version": "6.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "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": "6.9",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.9",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/898ca04b096b9e4640300eab91468c826a1ec92b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fe87b8dc67f1b2c64e76a66e78468c533d3c44ca"
                }
            ],
            "title": "hwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}