{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "9d4f22fd563e0cd02e8448e84d057e7c0132a586"
            },
            {
              "fixed": "28701b74c22d2a43ddf7aebb6378e60c18323865"
            },
            {
              "fixed": "afbf69d1d691c06d093d7c3f17168ecb608c4977"
            },
            {
              "fixed": "68e00d9212929805b40dcb9166755610f4f4acee"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.16.0"
            },
            {
              "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-2026-90127.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio: rtc: time out alarm requests\n\nRTC class operations run with rtc_device.ops_lock held. The virtio RTC\nalarm requests currently wait without a timeout for the device to return\ntheir requestq buffers.\n\nOn surprise removal, virtio-pci marks the virtqueues broken before\nunregistering the virtio device. If an alarm request is waiting when the\ndevice stops responding, viortc_remove() blocks in viortc_class_stop()\nwhile trying to acquire ops_lock. The request cannot complete and device\nremoval hangs until the waiting task is signalled.\n\nUse the same 60-second timeout as clock read requests for alarm reads,\nalarm programming, and alarm interrupt enable requests. The existing\nmessage reference counting keeps a timed-out request alive until a late\nresponse or device teardown.",
  "id": "CVE-2026-90127",
  "modified": "2026-09-19T03:30:23.705699345Z",
  "published": "2026-09-17T16:06:29.219Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28701b74c22d2a43ddf7aebb6378e60c18323865"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68e00d9212929805b40dcb9166755610f4f4acee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/afbf69d1d691c06d093d7c3f17168ecb608c4977"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90127.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90127"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "virtio: rtc: time out alarm requests"
}