{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.4.134"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "5.5"
              },
              {
                "fixed": "5.10.52"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "5.11"
              },
              {
                "fixed": "5.12.19"
              }
            ]
          },
          {
            "events": [
              {
                "introduced": "5.13"
              },
              {
                "fixed": "5.13.4"
              }
            ]
          }
        ]
      }
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation\n\nThe reference counting issue happens in several exception handling paths\nof arm_smmu_iova_to_phys_hard(). When those error scenarios occur, the\nfunction forgets to decrease the refcount of \"smmu\" increased by\narm_smmu_rpm_get(), causing a refcount leak.\n\nFix this issue by jumping to \"out\" label when those error scenarios\noccur.",
  "id": "CVE-2021-47325",
  "modified": "2026-03-15T21:50:48.298464391Z",
  "published": "2024-05-21T15:15:19.613Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5f9741a9a91f25c89e04b408cd61e3ab050ce24b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b11220803ad14a2a880cc06d8e01fe2548cc85b0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0f0c5ea09139777d90729d408b807021f2ea6492"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/43d1aaa1965f9b58035196dac49b1e1e6c9c25eb"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}