GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-93199 (GCVE-0-2026-93199)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:12 – Updated: 2026-09-17 16:12
VLAI
Title
i3c: master: Do not treat master device as a duplicate target
Summary
In the Linux kernel, the following vulnerability has been resolved: i3c: master: Do not treat master device as a duplicate target i3c_master_search_i3c_dev_duplicate() searches the bus for another I3C device with the same PID as the reference device. The search can match master->this, causing the controller itself to be returned as a duplicate. Since the controller is not a target device, it cannot be a duplicate of one. Exclude master->this from matching so that the function only returns real duplicate target devices.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < d0cc00957292e353ad46039034cd8f82fc4f8057 (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 150e71808d3715a0deefbb189c780d03fdbdc735 (git)
Affected: 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 , < 4dc1b3eeba7991905a5b5b8129ebea51be7d87b7 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (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
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/i3c/master.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d0cc00957292e353ad46039034cd8f82fc4f8057",
              "status": "affected",
              "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
              "versionType": "git"
            },
            {
              "lessThan": "150e71808d3715a0deefbb189c780d03fdbdc735",
              "status": "affected",
              "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
              "versionType": "git"
            },
            {
              "lessThan": "4dc1b3eeba7991905a5b5b8129ebea51be7d87b7",
              "status": "affected",
              "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/i3c/master.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "lessThan": "5.0",
              "status": "unaffected",
              "version": "0",
              "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": "6.18.52",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Do not treat master device as a duplicate target\n\ni3c_master_search_i3c_dev_duplicate() searches the bus for another I3C\ndevice with the same PID as the reference device.  The search can match\nmaster-\u003ethis, causing the controller itself to be returned as a\nduplicate.\n\nSince the controller is not a target device, it cannot be a duplicate of\none.  Exclude master-\u003ethis from matching so that the function only\nreturns real duplicate target devices."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:12:21.081Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d0cc00957292e353ad46039034cd8f82fc4f8057"
        },
        {
          "url": "https://git.kernel.org/stable/c/150e71808d3715a0deefbb189c780d03fdbdc735"
        },
        {
          "url": "https://git.kernel.org/stable/c/4dc1b3eeba7991905a5b5b8129ebea51be7d87b7"
        }
      ],
      "title": "i3c: master: Do not treat master device as a duplicate target",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93199",
    "datePublished": "2026-09-17T16:12:21.081Z",
    "dateReserved": "2026-09-17T16:02:15.092Z",
    "dateUpdated": "2026-09-17T16:12:21.081Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/i3c/master.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "d0cc00957292e353ad46039034cd8f82fc4f8057",
                    "status": "affected",
                    "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "150e71808d3715a0deefbb189c780d03fdbdc735",
                    "status": "affected",
                    "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4dc1b3eeba7991905a5b5b8129ebea51be7d87b7",
                    "status": "affected",
                    "version": "3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/i3c/master.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.0"
                  },
                  {
                    "lessThan": "5.0",
                    "status": "unaffected",
                    "version": "0",
                    "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\ni3c: master: Do not treat master device as a duplicate target\n\ni3c_master_search_i3c_dev_duplicate() searches the bus for another I3C\ndevice with the same PID as the reference device.  The search can match\nmaster-\u003ethis, causing the controller itself to be returned as a\nduplicate.\n\nSince the controller is not a target device, it cannot be a duplicate of\none.  Exclude master-\u003ethis from matching so that the function only\nreturns real duplicate target devices."
          }
        ],
        "id": "CVE-2026-93199",
        "lastModified": "2026-09-17T17:18:16.200",
        "metrics": {},
        "published": "2026-09-17T17:18:16.200",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/150e71808d3715a0deefbb189c780d03fdbdc735"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/4dc1b3eeba7991905a5b5b8129ebea51be7d87b7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d0cc00957292e353ad46039034cd8f82fc4f8057"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.