{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-90129",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-90129",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-17T16:06:30.537Z",
    "updatedAt": "2026-10-21T12:49:59.230Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "virtio_balloon: quiesce balloon work before device shutdown",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_balloon: quiesce balloon work before device shutdown\n\nCommit 8bd2fa086a04 (\"virtio: break and reset virtio devices on\ndevice_shutdown()\") added a generic virtio bus .shutdown handler that\nbreaks and resets every virtio device during device_shutdown(), i.e. on\nreboot and kexec.\n\nvirtio_balloon provides no .shutdown of its own, so that generic path\nruns while the balloon's asynchronous work is still armed. Once the\ndevice has been broken, virtqueue_add_inbuf() in\nvirtballoon_free_page_report() returns -EIO and trips its\nWARN_ON_ONCE(). On a kernel booted with panic_on_warn that turns an\nordinary reboot, for example a kexec based upgrade, into a fatal panic\nin the middle of device_shutdown(), so the machine never reaches the\nnew kernel.\n\nRelaxing that single WARN_ON_ONCE() would only hide the symptom: the\ninflate/deflate and OOM paths do not warn, they call\nwait_event(vb->acked, ...) and would instead block forever on a broken\nqueue that can no longer complete. The device has to be quiesced, not\njust kept quiet.\n\nAdd a .shutdown handler that quiesces the balloon via the shared\nvirtballoon_quiesce() helper while the device is still alive, and only\nthen breaks and resets it via virtio_device_shutdown(). Unlike\nvirtballoon_remove() the balloon workqueue is not destroyed, as shutdown\ndoes not free the device and cancel_work_sync() together with stop_update\nalready prevent any further work from being queued.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8bd2fa086a04886798b505f28db4002525895203",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6dd28e32f4d81a0d57c732b9900de24184e60a7d"
            },
            {
              "version": "8bd2fa086a04886798b505f28db4002525895203",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bdef50a8226fc04899ef6815dd08a002247d47d5"
            },
            {
              "version": "8bd2fa086a04886798b505f28db4002525895203",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7e17eef04600c399c7e0f5ce765da5cf9d40d8e1"
            },
            {
              "version": "acdfe206be6c70ec55dc8bfdb1a22036d10fae26",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "1eaa83fd94ed5e40d43139025f5acb7bcfed3b5f",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "aee42f3d57bfa37b2716df4584edeecf63b9df4c",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.6.160",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.7"
            },
            {
              "version": "6.12.114",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.13"
            },
            {
              "version": "6.14.9",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.15"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.15"
            },
            {
              "version": "6.18.52",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}