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CVE-2025-39778 (GCVE-0-2025-39778)

Vulnerability from cvelistv5 – Published: 2025-04-18 07:01 – Updated: 2026-05-11 21:36
VLAI
Title
objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show()
Summary
In the Linux kernel, the following vulnerability has been resolved: objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show() The csts_state_names[] array only has six sparse entries, but the iteration code in nvmet_ctrl_state_show() iterates seven, resulting in a potential out-of-bounds stack read. Fix that. Fixes the following warning with an UBSAN kernel: vmlinux.o: warning: objtool: .text.nvmet_ctrl_state_show: unexpected end of section
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 16:12 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 649fd41420a816b11b07423ebf4dbd4ac1ac2905 , < 1adc93a525fdee8e2b311e6d5fd93eb69714ca05 (git)
Affected: 649fd41420a816b11b07423ebf4dbd4ac1ac2905 , < 8fbf37a3577b4d64c150cafde338eee17b2f2ea4 (git)
Affected: 649fd41420a816b11b07423ebf4dbd4ac1ac2905 , < 0cc0efc58d6c741b2868d4af24874d7fec28a575 (git)
Affected: 649fd41420a816b11b07423ebf4dbd4ac1ac2905 , < 107a23185d990e3df6638d9a84c835f963fe30a6 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.23 , ≤ 6.12.* (semver)
Unaffected: 6.13.11 , ≤ 6.13.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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                  "version": "6.11"
                },
                {
                  "lessThan": "6.11",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.23",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.13.*",
                  "status": "unaffected",
                  "version": "6.13.11",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.14.*",
                  "status": "unaffected",
                  "version": "6.14.2",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.15",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.23",
                      "versionStartIncluding": "6.11",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13.11",
                      "versionStartIncluding": "6.11",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.14.2",
                      "versionStartIncluding": "6.11",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.15",
                      "versionStartIncluding": "6.11",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nobjtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show()\n\nThe csts_state_names[] array only has six sparse entries, but the\niteration code in nvmet_ctrl_state_show() iterates seven, resulting in a\npotential out-of-bounds stack read.  Fix that.\n\nFixes the following warning with an UBSAN kernel:\n\n  vmlinux.o: warning: objtool: .text.nvmet_ctrl_state_show: unexpected end of section"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-26T05:25:31.445Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/1adc93a525fdee8e2b311e6d5fd93eb69714ca05"
            },
            {
              "url": "https://git.kernel.org/stable/c/8fbf37a3577b4d64c150cafde338eee17b2f2ea4"
            },
            {
              "url": "https://git.kernel.org/stable/c/0cc0efc58d6c741b2868d4af24874d7fec28a575"
            },
            {
              "url": "https://git.kernel.org/stable/c/107a23185d990e3df6638d9a84c835f963fe30a6"
            }
          ],
          "title": "objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2025-39778",
        "datePublished": "2025-04-18T07:01:37.909Z",
        "dateReserved": "2025-04-16T07:20:57.129Z",
        "dateUpdated": "2025-10-01T16:12:59.581Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.


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.