iommu/riscv: Remove overflows on the invalidation path

{
  "id": "c5c1a05e518d7b9e15df9e36de4ad8c8b9dd011a4afaa1ab582b9abb3d3f7c55",
  "url": "https://osv.dev/vulnerability/CVE-2026-53312",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iommu/riscv: Remove overflows on the invalidation path",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: Remove overflows on the invalidation path Since RISC-V supports a sign extended page table it should support a gather->end of ULONG_MAX, but if this happens it will infinite loop because of the overflow. Also avoid overflow computing the length by moving the +1 to the other side of the <",
    "evidence": "osv:CVE-2026-53312",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.33",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-53312",
      "aliases": [
        "CVE-2026-53312"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "488ffbf181718b9ad8c1838cb249d60973e78eda"
                },
                {
                  "fixed": "9f0632b0d4246675fa221aa1a3bffadf9c6bd9ac"
                },
                {
                  "fixed": "e4b7687784153481de45fd39fb97ba3919605c0c"
                },
                {
                  "fixed": "40a13b49957937427bc23e78eb50679df4396a47"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53312.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.33"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53312.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.577216571Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/40a13b49957937427bc23e78eb50679df4396a47",
        "https://git.kernel.org/stable/c/9f0632b0d4246675fa221aa1a3bffadf9c6bd9ac",
        "https://git.kernel.org/stable/c/e4b7687784153481de45fd39fb97ba3919605c0c",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53312.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53312",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53312.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-53312",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 508828,
  "published_at": "2026-06-26T19:41:05.688+00:00"
}