CVE-2026-92477 (GCVE-0-2026-92477)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-09-17 16:09
VLAI
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.
Severity
No CVSS data available.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7340faae947400907e5e7581444712110d2811d5 , < b43890843e834300f967c69e74c7c2eb22cb1664 (git)
Affected: 7340faae947400907e5e7581444712110d2811d5 , < 587be18e0935632ebd367b0f89e37aa5762e400f (git)
Affected: 7340faae947400907e5e7581444712110d2811d5 , < d223989e1a1edad217b673486b093bd157fb6c9a (git)
Affected: 7340faae947400907e5e7581444712110d2811d5 , < cc92af8cc0e4dacd4375d34475141b0f1a70c09e (git)
Affected: 7340faae947400907e5e7581444712110d2811d5 , < 2b3fb5693c25c21741f357a8c9d0e1f19b7e368f (git)
Affected: 7340faae947400907e5e7581444712110d2811d5 , < abd26e6b53c4169122d61fdd4cabe09bdd916aac (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/ufs/core/ufs-debugfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b43890843e834300f967c69e74c7c2eb22cb1664",
              "status": "affected",
              "version": "7340faae947400907e5e7581444712110d2811d5",
              "versionType": "git"
            },
            {
              "lessThan": "587be18e0935632ebd367b0f89e37aa5762e400f",
              "status": "affected",
              "version": "7340faae947400907e5e7581444712110d2811d5",
              "versionType": "git"
            },
            {
              "lessThan": "d223989e1a1edad217b673486b093bd157fb6c9a",
              "status": "affected",
              "version": "7340faae947400907e5e7581444712110d2811d5",
              "versionType": "git"
            },
            {
              "lessThan": "cc92af8cc0e4dacd4375d34475141b0f1a70c09e",
              "status": "affected",
              "version": "7340faae947400907e5e7581444712110d2811d5",
              "versionType": "git"
            },
            {
              "lessThan": "2b3fb5693c25c21741f357a8c9d0e1f19b7e368f",
              "status": "affected",
              "version": "7340faae947400907e5e7581444712110d2811d5",
              "versionType": "git"
            },
            {
              "lessThan": "abd26e6b53c4169122d61fdd4cabe09bdd916aac",
              "status": "affected",
              "version": "7340faae947400907e5e7581444712110d2811d5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/ufs/core/ufs-debugfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: debugfs: Reserve space for a string terminator\n\nufs_saved_err_write() copies user input into a zero-initialized stack\nbuffer and passes it to kstrtoint(). A write that fills the entire buffer\noverwrites its only terminator.\n\nReject an input whose length leaves no room for the trailing NUL."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:09:55.741Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664"
        },
        {
          "url": "https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a"
        },
        {
          "url": "https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e"
        },
        {
          "url": "https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f"
        },
        {
          "url": "https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac"
        }
      ],
      "title": "scsi: ufs: debugfs: Reserve space for a string terminator",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-92477",
    "datePublished": "2026-09-17T16:09:55.741Z",
    "dateReserved": "2026-09-16T12:21:13.870Z",
    "dateUpdated": "2026-09-17T16:09:55.741Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-92477",
      "date": "2026-09-29",
      "epss": "0.00173",
      "percentile": "0.05948"
    },
    "microsoft_vex": {
      "current_release_date": "2026-09-23T02:49:53.000Z",
      "cve": "CVE-2026-92477",
      "id": "msrc_CVE-2026-92477",
      "initial_release_date": "2026-09-19T01:03:13.000Z",
      "product_status:known_affected": "2",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "scsi: ufs: debugfs: Reserve space for a string terminator",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-92477.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/ufs/core/ufs-debugfs.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "b43890843e834300f967c69e74c7c2eb22cb1664",
                    "status": "affected",
                    "version": "7340faae947400907e5e7581444712110d2811d5",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "587be18e0935632ebd367b0f89e37aa5762e400f",
                    "status": "affected",
                    "version": "7340faae947400907e5e7581444712110d2811d5",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "d223989e1a1edad217b673486b093bd157fb6c9a",
                    "status": "affected",
                    "version": "7340faae947400907e5e7581444712110d2811d5",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "cc92af8cc0e4dacd4375d34475141b0f1a70c09e",
                    "status": "affected",
                    "version": "7340faae947400907e5e7581444712110d2811d5",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2b3fb5693c25c21741f357a8c9d0e1f19b7e368f",
                    "status": "affected",
                    "version": "7340faae947400907e5e7581444712110d2811d5",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "abd26e6b53c4169122d61fdd4cabe09bdd916aac",
                    "status": "affected",
                    "version": "7340faae947400907e5e7581444712110d2811d5",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/ufs/core/ufs-debugfs.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.16"
                  },
                  {
                    "lessThan": "5.16",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.188",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.157",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.110",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.52",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.6",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3-rc1",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: debugfs: Reserve space for a string terminator\n\nufs_saved_err_write() copies user input into a zero-initialized stack\nbuffer and passes it to kstrtoint(). A write that fills the entire buffer\noverwrites its only terminator.\n\nReject an input whose length leaves no room for the trailing NUL."
          }
        ],
        "id": "CVE-2026-92477",
        "lastModified": "2026-09-17T17:17:49.720",
        "metrics": {},
        "published": "2026-09-17T17:17:49.720",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-22T16:27:22Z",
      "cve": "CVE-2026-92477",
      "id": "CVE-2026-92477",
      "initial_release_date": "2026-09-18T00:14:03Z",
      "product_status:known_affected": "160",
      "product_status:known_not_affected": "187",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-92477",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-92477.json",
      "version": "4"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…