iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID

{
  "id": "4d8f358b948b9ef82b2592a6692fc3661fd980c7a3d0ff109cce11434b4e615a",
  "url": "https://osv.dev/vulnerability/CVE-2026-90425",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241_vintf_init_vsid() maps a guest vSID to a single physical Stream ID taken from master->streams[0], and only warns when the device does not have exactly one stream. A device with several streams gets only its first one mapped, so a guest vSID invalidation cannot reach the others' ATC and IOTLB entries; a device with none makes master->streams a ZERO_SIZE_PTR, read out of bounds. Reject the mapping with -EOPNOTSUPP if master->num_streams is not one.",
    "evidence": "osv:CVE-2026-90425",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-90425",
      "aliases": [
        "CVE-2026-90425"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7"
                },
                {
                  "fixed": "9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5"
                },
                {
                  "fixed": "0b139ec4641c7d4163d8e345c26cc630e24fa43b"
                },
                {
                  "fixed": "fb292bfc9be936dade7eef7ec5762de1201983d8"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90425.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.17.0"
                },
                {
                  "fixed": "6.18.52"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90425.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:40.947331341Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0b139ec4641c7d4163d8e345c26cc630e24fa43b",
        "https://git.kernel.org/stable/c/9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5",
        "https://git.kernel.org/stable/c/fb292bfc9be936dade7eef7ec5762de1201983d8",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90425.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90425",
        "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/2026/90xxx/CVE-2026-90425.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90425",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 508731,
  "published_at": "2026-09-17T16:09:47.81+00:00"
}