FKIE_CVE-2026-43125

Vulnerability from fkie_nvd - Published: 2026-05-06 12:16 - Updated: 2026-05-08 17:57
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-bounds write in dlm_search_rsb_tree(). Add length validation to prevent potential buffer overflow.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndlm: validate length in dlm_search_rsb_tree\n\nThe len parameter in dlm_dump_rsb_name() is not validated and comes\nfrom network messages. When it exceeds DLM_RESNAME_MAXLEN, it can\ncause out-of-bounds write in dlm_search_rsb_tree().\n\nAdd length validation to prevent potential buffer overflow."
    }
  ],
  "id": "CVE-2026-43125",
  "lastModified": "2026-05-08T17:57:31.783",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.



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