{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7e1449cd15d1096157d1a9923b82e37602fb7eb0"
            },
            {
              "fixed": "a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3"
            },
            {
              "fixed": "898ca04b096b9e4640300eab91468c826a1ec92b"
            },
            {
              "fixed": "fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1"
            },
            {
              "fixed": "fe87b8dc67f1b2c64e76a66e78468c533d3c44ca"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.9.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72394.json"
  },
  "details": "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.",
  "id": "CVE-2026-72394",
  "modified": "2026-08-18T03:31:23.426150097Z",
  "published": "2026-08-15T05:56:21.707Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/898ca04b096b9e4640300eab91468c826a1ec92b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe87b8dc67f1b2c64e76a66e78468c533d3c44ca"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72394.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72394"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "hwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero"
}