{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cbc29538dbf7d7400f1ffc5dd5713e6a551463a0"
            },
            {
              "fixed": "60e06c4dba696173982393252a40ceb7dd2eec18"
            },
            {
              "fixed": "de58b90a4d1417c15b693eb04c0ce6bc925d84c6"
            },
            {
              "fixed": "046e56b53c09375ef39903514496aa5508db9729"
            },
            {
              "fixed": "e253dd5f9f6d875a317895bf43ec9534ed7523cb"
            }
          ],
          "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": "6.12.104"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.45"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74685.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (ltc4282) Clamp negative current limits\n\nWhen a negative value is passed to ltc4282_write_curr(), the signed long\nval is cast directly to u64:\n\ndrivers/hwmon/ltc4282.c:ltc4282_write_curr() {\n        /* need to pass it in millivolt */\n        u32 in = DIV_ROUND_CLOSEST_ULL((u64)val * st-\u003ersense, DECA * MICRO);\n        ...\n}\n\nThis cast converts negative inputs into large positive values. The\nsubsequent division result overflows the u32 in variable, truncating\nto a pseudo-random positive value. When this is passed to\nltc4282_write_voltage_byte(), it is clamped to the maximum limit instead\nof zero.\n\nClamp val to 0 and to the maximum supported upper limit before the cast\nand assign the result to a 64-bit temporary variable before the division\nto avoid the underflow and an also possible overflow.",
  "id": "CVE-2026-74685",
  "modified": "2026-08-24T11:35:55.313890104Z",
  "published": "2026-08-22T15:32:51.493Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/046e56b53c09375ef39903514496aa5508db9729"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60e06c4dba696173982393252a40ceb7dd2eec18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de58b90a4d1417c15b693eb04c0ce6bc925d84c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e253dd5f9f6d875a317895bf43ec9534ed7523cb"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74685.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74685"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "hwmon: (ltc4282) Clamp negative current limits"
}