CVE-2026-89623

{
  "id": "CVE-2026-89623",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-11T20:19:47.630",
  "lastModified": "2026-10-24T15:17:35.113",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: mcp2221: stop device IO before hid_hw_stop\n\nQuiesce device IO at the start of the devm cleanup callback\nmcp2221_hid_unregister() so that incoming HID reports cannot race with\nhardware teardown during probe failure or device removal, addressing a\npotential use-after-free.\n\nGuard the call to hid_device_io_stop() with io_started. On normal\nremoval hid_device_remove() has already cleared io_started before the\ndevres group is released, so an unconditional call would otherwise hit\nthe !io_started path and emit a spurious \"io already stopped\" warning\non every removal. The guard preserves the probe-failure balancing,\nwhere io_started is still set after hid_device_io_start(), while\nstaying silent on the normal removal path."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/hid/hid-mcp2221.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645",
              "lessThan": "85d963499f1feeea287c0a37c3eac3fc1898eca9",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2",
              "lessThan": "0ae90a19e6b5a8557d25d95facb7e01c9c07af38",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2",
              "lessThan": "c99ba6c234d4d537c317336376b78c088174034a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2",
              "lessThan": "2eda1513f573945c1e3a0090341f3d28740463b1",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2",
              "lessThan": "dca151633c0fde90935311c60e7cfc064aa56134",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "6.6.8",
              "lessThan": "6.6.157",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/hid/hid-mcp2221.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.7",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.7",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.157",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.109",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.50",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.4",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0ae90a19e6b5a8557d25d95facb7e01c9c07af38",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2eda1513f573945c1e3a0090341f3d28740463b1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/85d963499f1feeea287c0a37c3eac3fc1898eca9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c99ba6c234d4d537c317336376b78c088174034a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dca151633c0fde90935311c60e7cfc064aa56134",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}