Vulnerability-Lookup

GHSA-54V9-XVG8-M8R8

Vulnerability from github – Published: 2024-05-01 06:31 – Updated: 2025-09-18 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: validate request buffer size in smb2_allocate_rsp_buf()

The response buffer should be allocated in smb2_allocate_rsp_buf before validating request. But the fields in payload as well as smb2 header is used in smb2_allocate_rsp_buf(). This patch add simple buffer size validation to avoid potencial out-of-bounds in request buffer.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26936"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T06:15:08Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: validate request buffer size in smb2_allocate_rsp_buf()\n\nThe response buffer should be allocated in smb2_allocate_rsp_buf\nbefore validating request. But the fields in payload as well as smb2 header\nis used in smb2_allocate_rsp_buf(). This patch add simple buffer size\nvalidation to avoid potencial out-of-bounds in request buffer.",
  "id": "GHSA-54v9-xvg8-m8r8",
  "modified": "2025-09-18T15:30:21Z",
  "published": "2024-05-01T06:31:41Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26936"
    },
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      "url": "https://git.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674"
    },
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    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11"
    },
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-26936 (GCVE-0-2024-26936)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:26 – Updated: 2026-08-05 11:28

Title

ksmbd: validate request buffer size in smb2_allocate_rsp_buf()

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate request buffer size in smb2_allocate_rsp_buf() The response buffer should be allocated in smb2_allocate_rsp_buf before validating request. But the fields in payload as well as smb2 header is used in smb2_allocate_rsp_buf(). This patch add simple buffer size validation to avoid potencial out-of-bounds in request buffer.

Severity

8.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-10 18:35 UTC

Assigner

Linux mitre root Scorecard

References

5 references

URL	Tags
https://git.kernel.org/stable/c/8f3d0bf1d0c62b539…
https://git.kernel.org/stable/c/21ff9d7d223c5c19c…
https://git.kernel.org/stable/c/5c20b242d4fed73a9…
https://git.kernel.org/stable/c/2c27a64a2bc47d9bf…
https://git.kernel.org/stable/c/17cf0c2794bdb6f39…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 8f3d0bf1d0c62b539d54c5b9108a845cff619b99 (git) Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 21ff9d7d223c5c19cb4334009e4c0c83a2f4d674 (git) Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 5c20b242d4fed73a93591e48bfd9772e2322fb11 (git) Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6 (git) Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 17cf0c2794bdb6f39671265aa18aea5c22ee8c4a (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.159 , ≤ 5.15.* (semver) Unaffected: 6.1.88 , ≤ 6.1.* (semver) Unaffected: 6.6.29 , ≤ 6.6.* (semver) Unaffected: 6.8.8 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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                "id": "CVE-2024-26936",
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-54V9-XVG8-M8R8

CVE-2024-26936 (GCVE-0-2024-26936)

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