CVE-2026-97986

{
  "id": "CVE-2026-97986",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-25T11:17:26.683",
  "lastModified": "2026-10-19T10:17:49.960",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_input: stop callbacks before unregistering input device\n\nvirtinput_remove() unregisters the input device before resetting the\nvirtio device. virtinput_recv_events() drops vi->lock around input_event(),\nso clearing vi->ready does not stop a callback that passed the entry check.\nIt can still use vi->idev, requeue buffers and kick the queue.\n\nReset first, as virtinput_freeze() already does. With the preceding core\nchange, reset waits for callbacks before input_unregister_device() can\nfree vi->idev. Recheck vi->ready after taking the lock again: keep draining\ncompleted events so an input packet is not truncated, but stop requeueing\nbuffers and kicking the queue.\n\nWith evdev attached, input_unregister_handle() currently waits for an RCU\ngrace period, which also waits out IRQ callbacks. This masks the lifetime\nbug on PCI and MMIO, but does not protect sleepable callbacks on other\ntransports."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/virtio/virtio_input.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "271c865161c57cfabca45b93eaa712b19da365bc",
              "lessThan": "3ae729b1f8ab81d1244061872db2fb0ebb110d2a",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "271c865161c57cfabca45b93eaa712b19da365bc",
              "lessThan": "81073bca2062c916c818f2744fbab545a5c4982b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "271c865161c57cfabca45b93eaa712b19da365bc",
              "lessThan": "8226aeee9b9a94cd699fbb51cb230feff46cfaf2",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "271c865161c57cfabca45b93eaa712b19da365bc",
              "lessThan": "a3ba86a270dd87460759214046dc7cbd409ac711",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "271c865161c57cfabca45b93eaa712b19da365bc",
              "lessThan": "5378f7945856a5ed88e6f9850bc7a68f54090135",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "271c865161c57cfabca45b93eaa712b19da365bc",
              "lessThan": "d7808b37da0a619cf1fa541c2384e783fecc2480",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/virtio/virtio_input.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4.1",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.1",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.189",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.158",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.111",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.53",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.7",
              "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/3ae729b1f8ab81d1244061872db2fb0ebb110d2a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5378f7945856a5ed88e6f9850bc7a68f54090135",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/81073bca2062c916c818f2744fbab545a5c4982b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8226aeee9b9a94cd699fbb51cb230feff46cfaf2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a3ba86a270dd87460759214046dc7cbd409ac711",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d7808b37da0a619cf1fa541c2384e783fecc2480",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}