{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "344ff358495706abc7aac1e0c59a5bb16b350307"
            },
            {
              "fixed": "324cc98b71f0d3dee7367ef3c669fd80747e71b6"
            },
            {
              "fixed": "2d92c250815cba6bffd64f0125fac7afe4fa6ce0"
            },
            {
              "fixed": "3efb7f6491526f5012f9ec94769e9ed832feeef8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90197.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: haptic: don't write an uninitialized value to unhandled usages\n\nfill_effect_buf() initializes value only for the four haptic usages\nhandled by its switch, but writes it to field-\u003evalue[] for every usage.\nAn unhandled usage can therefore receive either an uninitialized value\nor one left over from the previous usage. hid_output_report() then\nserializes that value into the effect's report buffer.\n\nSkip unhandled usages instead. This also matches switch_mode(), which\nonly updates fields it recognizes.\n\nFound with Clang's -Wconditional-uninitialized.",
  "id": "CVE-2026-90197",
  "modified": "2026-09-19T03:30:18.997917709Z",
  "published": "2026-09-17T16:07:16.281Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d92c250815cba6bffd64f0125fac7afe4fa6ce0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/324cc98b71f0d3dee7367ef3c669fd80747e71b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3efb7f6491526f5012f9ec94769e9ed832feeef8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90197.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90197"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "HID: haptic: don't write an uninitialized value to unhandled usages"
}