{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.8-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  iommufd/viommu: Release the igroup lock on the vdevice_size error path  iommufd_vdevice_alloc_ioctl() takes idev-\u003eigroup-\u003elock, then validates the driver's vdevice_size against the core structure size with a WARN_ON_ONCE. On failure that guard jumps to out_put_idev, below out_unlock_igroup, so it skips the mutex_unlock(), leaving the igroup lock held and deadlocking the next vDEVICE operation on that group.  Jump to out_unlock_igroup instead.",
  "id": "DEBIAN-CVE-2026-80687",
  "modified": "2026-09-14T16:47:33.858402645Z",
  "published": "2026-08-28T08:16:54.170Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-80687"
    }
  ],
  "upstream": [
    "CVE-2026-80687"
  ]
}