CVE-2026-23123 (GCVE-0-2026-23123)
Vulnerability from cvelistv5
Published
2026-02-14 15:09
Modified
2026-05-11 22:00
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: interconnect: debugfs: initialize src_node and dst_node to empty strings The debugfs_create_str() API assumes that the string pointer is either NULL or points to valid kmalloc() memory. Leaving the pointer uninitialized can cause problems. Initialize src_node and dst_node to empty strings before creating the debugfs entries to guarantee that reads and writes are safe.
References
Impacted products
Vendor Product Version
Linux Linux Version: 770c69f037c18cfaa37c3d6c6ef8bd257635513f
Version: 770c69f037c18cfaa37c3d6c6ef8bd257635513f
Version: 770c69f037c18cfaa37c3d6c6ef8bd257635513f
Version: 770c69f037c18cfaa37c3d6c6ef8bd257635513f
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/interconnect/debugfs-client.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
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              "versionType": "git"
            }
          ]
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.68",
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.8",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.122",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.12.68",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ninterconnect: debugfs: initialize src_node and dst_node to empty strings\n\nThe debugfs_create_str() API assumes that the string pointer is either NULL\nor points to valid kmalloc() memory. Leaving the pointer uninitialized can\ncause problems.\n\nInitialize src_node and dst_node to empty strings before creating the\ndebugfs entries to guarantee that reads and writes are safe."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:00:34.413Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/aa79a5a959c7c414bd6fba01ea8dbaddd44f13e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/935d0938b570589c8b0a1733d2cba3c39d027f25"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d7c7e1fb3ec24fdd0f9faa27b666d6789e891e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/8cc27f5c6dd17dd090f3a696683f04336c162ff5"
        }
      ],
      "title": "interconnect: debugfs: initialize src_node and dst_node to empty strings",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23123",
    "datePublished": "2026-02-14T15:09:53.369Z",
    "dateReserved": "2026-01-13T15:37:45.970Z",
    "dateUpdated": "2026-05-11T22:00:34.413Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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