scsi: ufs: debugfs: Reserve space for a string terminator

{
  "id": "8ff843de05c859b5075a843b07718af63d8acf5f3a031ac56f4b2913e286bd96",
  "url": "https://osv.dev/vulnerability/CVE-2026-92477",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "scsi: ufs: debugfs: Reserve space for a string terminator",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: debugfs: Reserve space for a string terminator ufs_saved_err_write() copies user input into a zero-initialized stack buffer and passes it to kstrtoint(). A write that fills the entire buffer overwrites its only terminator. Reject an input whose length leaves no room for the trailing NUL.",
    "evidence": "osv:CVE-2026-92477",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.188",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.157",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-92477",
      "aliases": [
        "CVE-2026-92477"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "7340faae947400907e5e7581444712110d2811d5"
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                {
                  "fixed": "b43890843e834300f967c69e74c7c2eb22cb1664"
                },
                {
                  "fixed": "587be18e0935632ebd367b0f89e37aa5762e400f"
                },
                {
                  "fixed": "d223989e1a1edad217b673486b093bd157fb6c9a"
                },
                {
                  "fixed": "cc92af8cc0e4dacd4375d34475141b0f1a70c09e"
                },
                {
                  "fixed": "2b3fb5693c25c21741f357a8c9d0e1f19b7e368f"
                },
                {
                  "fixed": "abd26e6b53c4169122d61fdd4cabe09bdd916aac"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92477.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.188"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.157"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.110"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
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                  "fixed": "6.18.52"
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            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
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                {
                  "fixed": "7.2.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92477.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.405625470Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f",
        "https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f",
        "https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac",
        "https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664",
        "https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e",
        "https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92477.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-92477",
        "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/2026/92xxx/CVE-2026-92477.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-92477",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 521364,
  "published_at": "2026-09-17T16:09:55.741+00:00"
}