{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "051ae5aa73d782a8be2699a11e17c68f28b4e758"
            },
            {
              "fixed": "4c33d00ad9a911e87ea222986f732ce072e3aa26"
            },
            {
              "fixed": "07b4fe1367f076886c1c47a19c70936138325087"
            },
            {
              "fixed": "4ac2ce123824d5f885c868fa1f9f4d463141a2ba"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89446.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Release current IOAS on xa_store() failure\n\niommufd_take_all_iova_rwsem() takes an object reference and the\niova_rwsem write lock before storing the IOAS in the temporary ioas_list\nxarray.\n\nIf xa_store() fails, the current IOAS has not been inserted into\nioas_list yet. iommufd_release_all_iova_rwsem() only unwinds IOAS\nobjects already present in that xarray, so it cannot release the current\nIOAS.\n\nRelease the current IOAS rwsem and object reference before unwinding the\npreviously stored entries.",
  "id": "CVE-2026-89446",
  "modified": "2026-09-13T03:30:42.307456576Z",
  "published": "2026-09-11T19:43:13.431Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07b4fe1367f076886c1c47a19c70936138325087"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ac2ce123824d5f885c868fa1f9f4d463141a2ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c33d00ad9a911e87ea222986f732ce072e3aa26"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89446.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89446"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "iommufd: Release current IOAS on xa_store() failure"
}