{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2"
            },
            {
              "fixed": "0744cb9520aade37e78f69134f3111086158f1d2"
            },
            {
              "fixed": "c876c437d188911685d8bed645416f2e86bd0354"
            },
            {
              "fixed": "6787f1828f5616f17250e108c0031fb96fd2cfe6"
            },
            {
              "fixed": "92cca302a4eaf65d1b38b3fb600b4ee5eb856a51"
            },
            {
              "fixed": "02246d8b462fd9bd90bc7ae7d6cab1acf69bcb87"
            },
            {
              "fixed": "544ebb25bd58f67e821573412ab7a982b9e02211"
            },
            {
              "fixed": "0fecd89f979a8653b9a5b0816570329b7a94a081"
            },
            {
              "fixed": "a4bc41504690b7d7064931909874f5b98cd148b6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.10.270"
            },
            {
              "fixed": "5.15.221"
            },
            {
              "fixed": "6.1.188"
            },
            {
              "fixed": "6.6.157"
            },
            {
              "fixed": "6.12.110"
            },
            {
              "fixed": "6.18.52"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "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/2026/93xxx/CVE-2026-93189.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: quiesce input in hid_hw_stop() to prevent use-after-free\n\nA driver's probe calls hid_device_io_start() to enable input delivery,\nthen fails at a later initialization step and unwinds via hid_hw_stop().\nThe unwind frees struct hidraw via hidraw_disconnect() while in-flight\nHID reports may still be running on another CPU, dereferencing the\nfreed object through hidraw_report_event(). syzbot reports the\nresulting use-after-free for the corsair-psu HID driver.\n\nEdward Adam Davis posted a per-driver fix for corsair-psu that adds\nan explicit hid_device_io_stop() before hid_hw_stop() in the probe\nerror path (\"hwmon: prevent packets from going to driver for probe\",\n2026-04-28). Auditing the tree shows 15 drivers call\nhid_device_io_start(); 7 also call hid_device_io_stop() and 8 do not:\n\n  drivers calling hid_device_io_start() without a matching\n  hid_device_io_stop() before hid_hw_stop():\n    drivers/hwmon/corsair-psu.c       (fix posted by Edward)\n    drivers/hwmon/corsair-cpro.c\n    drivers/hwmon/nzxt-kraken3.c\n    drivers/hwmon/nzxt-smart2.c\n    drivers/hwmon/gigabyte_waterforce.c\n    drivers/hid/hid-logitech-dj.c\n    drivers/hid/hid-nintendo.c\n    drivers/hid/hid-mcp2221.c\n\nRoughly half of all callers of the API are exposed. Centralize the\nquiesce in hid_hw_stop() so callers do not have to remember the\nmatching stop: if a driver has left hdev-\u003eio_started true on entry,\ncall hid_device_io_stop() before hid_disconnect().\n\nFor the 7 drivers that already call hid_device_io_stop() correctly,\nhdev-\u003eio_started is false on entry, the guard short-circuits, and\nbehavior is unchanged.\n\nNo Fixes: tag because the affected drivers gained their\nhid_device_io_start() calls independently over years; the bug is a\nclass-wide API misuse rather than a regression from one commit.",
  "id": "CVE-2026-93189",
  "modified": "2026-09-19T03:30:45.781397507Z",
  "published": "2026-09-17T16:12:14.234Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/02246d8b462fd9bd90bc7ae7d6cab1acf69bcb87"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0744cb9520aade37e78f69134f3111086158f1d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0fecd89f979a8653b9a5b0816570329b7a94a081"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/544ebb25bd58f67e821573412ab7a982b9e02211"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6787f1828f5616f17250e108c0031fb96fd2cfe6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92cca302a4eaf65d1b38b3fb600b4ee5eb856a51"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4bc41504690b7d7064931909874f5b98cd148b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c876c437d188911685d8bed645416f2e86bd0354"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93189.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93189"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "HID: core: quiesce input in hid_hw_stop() to prevent use-after-free"
}