{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "42df43b36163ed7d0ab13992e411093252903273"
            },
            {
              "fixed": "f532401be9312ecd166f616bb74a65b0b4c150fa"
            },
            {
              "fixed": "7f7074a886c4a93e3d12076ce60a510a1ebe400c"
            },
            {
              "fixed": "535a200220ca2c83bc8bf54bd2cbe045d6ee70c4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.11.0"
            },
            {
              "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-2026-89452.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/msm: Unwind probe state on registration failure\n\nmsm_iommu_probe() adds its devm-managed IOMMU object to\nqcom_iommu_devices before adding the IOMMU sysfs device and registering\nit with the IOMMU core.\n\nIf iommu_device_sysfs_add() fails, probe returns with the object still on\nqcom_iommu_devices. The driver core then releases the devm allocation,\nleaving a dangling list entry that later list walks may dereference.\n\nIf iommu_device_register() fails, the same dangling list entry remains\nand the sysfs device is left registered as well.\n\nUnwind the sysfs device and global list entry in reverse setup order on\nthe corresponding failure paths.",
  "id": "CVE-2026-89452",
  "modified": "2026-09-15T03:30:47.008673790Z",
  "published": "2026-09-11T19:43:17.405Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/535a200220ca2c83bc8bf54bd2cbe045d6ee70c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f7074a886c4a93e3d12076ce60a510a1ebe400c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f532401be9312ecd166f616bb74a65b0b4c150fa"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89452.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89452"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "iommu/msm: Unwind probe state on registration failure"
}