CVE-2026-93283 (GCVE-0-2026-93283)
Vulnerability from cvelistv5
Published
2026-09-24 15:52
Modified
2026-10-19 09:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix device_register() error path When device_register() fails in i3c_master_register_new_i3c_devs(), put_device() is called to drop the reference taken by device_register(). That drops the last reference, so the device's release callback i3c_device_release() runs and frees the i3c_device. Two problems follow from that: i3c_device_release() does WARN_ON(i3cdev->desc), so it warns because desc->dev->desc still points back at the descriptor. Clear it before calling put_device(). After put_device() frees the i3c_device, desc->dev is left pointing at freed memory, so clear desc->dev as well. That prevents, for example, i3c_master_unregister_i3c_devs() seeing desc->dev as non-NULL and dereferencing it.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1832ed55df45f4145335ad992fb83813cdc58b5d
Version: d48fe8d98171e0fffdeaa8b37ce0a6444bff819b
Version: 174ae0a3b89e7804e4ea3d31bd83d6e43f39568c
Version: e49a51a96b531f1b4bcd8d358e645b6c74ef67e6
Version: cab63f64887616e3c4e31cfd8103320be6ebc8d3
Version: cab63f64887616e3c4e31cfd8103320be6ebc8d3
Version: cab63f64887616e3c4e31cfd8103320be6ebc8d3
Version: cab63f64887616e3c4e31cfd8103320be6ebc8d3
Version: 204beeb509d37669de34560e83bb8abffe7ee63a
Version: b24cf43d9babf1265a2bb0ae8d198267cef43b83
Version: 5.10.201   ≤
Version: 5.15.139   ≤
Version: 6.1.63   ≤
Version: 6.6.2   ≤
Version: 5.4.261   ≤
Version: 6.5.12   ≤
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": "5bf498623f8397d45f85f14cd631c5e5a565c2fb",
              "status": "affected",
              "version": "1832ed55df45f4145335ad992fb83813cdc58b5d",
              "versionType": "git"
            },
            {
              "lessThan": "20a2b6df91fd782ef2ff551febef594d0b46a9a7",
              "status": "affected",
              "version": "d48fe8d98171e0fffdeaa8b37ce0a6444bff819b",
              "versionType": "git"
            },
            {
              "lessThan": "a14dbdf471001dd0601b0c491184990c178a199c",
              "status": "affected",
              "version": "174ae0a3b89e7804e4ea3d31bd83d6e43f39568c",
              "versionType": "git"
            },
            {
              "lessThan": "d22ad96f1a0c89e0ba66a2facc7430f0923919e3",
              "status": "affected",
              "version": "e49a51a96b531f1b4bcd8d358e645b6c74ef67e6",
              "versionType": "git"
            },
            {
              "lessThan": "7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0",
              "status": "affected",
              "version": "cab63f64887616e3c4e31cfd8103320be6ebc8d3",
              "versionType": "git"
            },
            {
              "lessThan": "7ef12e1dd06e442eebf370f6e53c41bd056d0f22",
              "status": "affected",
              "version": "cab63f64887616e3c4e31cfd8103320be6ebc8d3",
              "versionType": "git"
            },
            {
              "lessThan": "6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf",
              "status": "affected",
              "version": "cab63f64887616e3c4e31cfd8103320be6ebc8d3",
              "versionType": "git"
            },
            {
              "lessThan": "74be657d98a8d684c0475f3cbd450ef2a30ffc73",
              "status": "affected",
              "version": "cab63f64887616e3c4e31cfd8103320be6ebc8d3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "204beeb509d37669de34560e83bb8abffe7ee63a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b24cf43d9babf1265a2bb0ae8d198267cef43b83",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.270",
              "status": "affected",
              "version": "5.10.201",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.221",
              "status": "affected",
              "version": "5.15.139",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.188",
              "status": "affected",
              "version": "6.1.63",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.157",
              "status": "affected",
              "version": "6.6.2",
              "versionType": "semver"
            },
            {
              "lessThan": "5.5",
              "status": "affected",
              "version": "5.4.261",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6",
              "status": "affected",
              "version": "6.5.12",
              "versionType": "semver"
            }
          ]
        },
        {
          "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": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "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",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.270",
                  "versionStartIncluding": "5.10.201",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "5.15.139",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "6.1.63",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "6.6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.4.261",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.5.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: master: Fix device_register() error path\n\nWhen device_register() fails in i3c_master_register_new_i3c_devs(),\nput_device() is called to drop the reference taken by\ndevice_register().  That drops the last reference, so the device\u0027s\nrelease callback i3c_device_release() runs and frees the i3c_device.\n\nTwo problems follow from that:\n\ni3c_device_release() does WARN_ON(i3cdev-\u003edesc), so it warns because\ndesc-\u003edev-\u003edesc still points back at the descriptor.  Clear it before\ncalling put_device().\n\nAfter put_device() frees the i3c_device, desc-\u003edev is left pointing at\nfreed memory, so clear desc-\u003edev as well.  That prevents, for example,\ni3c_master_unregister_i3c_devs() seeing desc-\u003edev as non-NULL and\ndereferencing it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:08:37.502Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5bf498623f8397d45f85f14cd631c5e5a565c2fb"
        },
        {
          "url": "https://git.kernel.org/stable/c/20a2b6df91fd782ef2ff551febef594d0b46a9a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/a14dbdf471001dd0601b0c491184990c178a199c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d22ad96f1a0c89e0ba66a2facc7430f0923919e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ef12e1dd06e442eebf370f6e53c41bd056d0f22"
        },
        {
          "url": "https://git.kernel.org/stable/c/6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf"
        },
        {
          "url": "https://git.kernel.org/stable/c/74be657d98a8d684c0475f3cbd450ef2a30ffc73"
        }
      ],
      "title": "i3c: master: Fix device_register() error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93283",
    "datePublished": "2026-09-24T15:52:26.252Z",
    "dateReserved": "2026-09-17T16:02:15.098Z",
    "dateUpdated": "2026-10-19T09:08:37.502Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.