Vulnerability-Lookup

CNVD-2025-03428

Vulnerability from cnvd - Published: 2025-02-21

Title

Linux kernel iomap_write_delalloc_scan函数整数溢出漏洞

Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在整数溢出漏洞，该漏洞源于iomap_write_delalloc_scan函数在32位内核中错误地将64位偏移量截断为32位，攻击者可利用该漏洞导致在向XFS文件系统写入数据时出现无限循环。

Severity

中

Patch Name

Linux kernel iomap_write_delalloc_scan函数整数溢出漏洞的补丁

Patch Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在整数溢出漏洞，该漏洞源于iomap_write_delalloc_scan函数在32位内核中错误地将64位偏移量截断为32位，攻击者可利用该漏洞导致在向XFS文件系统写入数据时出现无限循环。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://git.kernel.org/stable/c/402ce16421477e27f30b57d6d1a6dc248fa3a4e4

Reference

https://nvd.nist.gov/vuln/detail/CVE-2025-21667

Impacted products

Name
Linux Kernel

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-21667",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-21667"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eiomap_write_delalloc_scan\u51fd\u6570\u572832\u4f4d\u5185\u6838\u4e2d\u9519\u8bef\u5730\u5c0664\u4f4d\u504f\u79fb\u91cf\u622a\u65ad\u4e3a32\u4f4d\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5728\u5411XFS\u6587\u4ef6\u7cfb\u7edf\u5199\u5165\u6570\u636e\u65f6\u51fa\u73b0\u65e0\u9650\u5faa\u73af\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.kernel.org/stable/c/402ce16421477e27f30b57d6d1a6dc248fa3a4e4",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-03428",
  "openTime": "2025-02-21",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eiomap_write_delalloc_scan\u51fd\u6570\u572832\u4f4d\u5185\u6838\u4e2d\u9519\u8bef\u5730\u5c0664\u4f4d\u504f\u79fb\u91cf\u622a\u65ad\u4e3a32\u4f4d\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5728\u5411XFS\u6587\u4ef6\u7cfb\u7edf\u5199\u5165\u6570\u636e\u65f6\u51fa\u73b0\u65e0\u9650\u5faa\u73af\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux kernel iomap_write_delalloc_scan\u51fd\u6570\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-21667",
  "serverity": "\u4e2d",
  "submitTime": "2025-02-17",
  "title": "Linux kernel iomap_write_delalloc_scan\u51fd\u6570\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2025-21667 (GCVE-0-2025-21667)

Vulnerability from cvelistv5 – Published: 2025-01-31 11:25 – Updated: 2026-05-23 15:56

Title

iomap: avoid avoid truncating 64-bit offset to 32 bits

Summary

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid avoid truncating 64-bit offset to 32 bits on 32-bit kernels, iomap_write_delalloc_scan() was inadvertently using a 32-bit position due to folio_next_index() returning an unsigned long. This could lead to an infinite loop when writing to an xfs filesystem.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:52 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

5 references

URL	Tags
https://git.kernel.org/stable/c/7ca4bd6b754913910…
https://git.kernel.org/stable/c/91371922704c8d820…
https://git.kernel.org/stable/c/402ce16421477e27f…
https://git.kernel.org/stable/c/c13094b894de28951…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 38be53c3fd7f4f4bd5de319a323d72f9f6beb16d , < 7ca4bd6b754913910151acce00be093f03642725 (git) Affected: f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 , < 91371922704c8d82049ef7c2ad974d0a2cd1174d (git) Affected: f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 , < 402ce16421477e27f30b57d6d1a6dc248fa3a4e4 (git) Affected: f43dc4dc3eff028b5ddddd99f3a66c5a6bdd4e78 , < c13094b894de289514d84b8db56d1f2931a0bade (git) Affected: 6.1.92 , < 6.1.127 (semver)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.1.127 , ≤ 6.1.* (semver) Unaffected: 6.6.74 , ≤ 6.6.* (semver) Unaffected: 6.12.11 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21667",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:52:21.085085Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-835",
                "description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
                "lang": "en",
                "type": "CWE"
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            ]
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        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:57:12.595Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:58:46.039Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
            {
              "lessThan": "7ca4bd6b754913910151acce00be093f03642725",
              "status": "affected",
              "version": "38be53c3fd7f4f4bd5de319a323d72f9f6beb16d",
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            },
            {
              "lessThan": "91371922704c8d82049ef7c2ad974d0a2cd1174d",
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              "status": "unaffected",
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              "status": "unaffected",
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.74",
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            },
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              "versionType": "original_commit_for_fix"
            }
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        }
      ],
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        }
      ],
      "providerMetadata": {
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      ],
      "title": "iomap: avoid avoid truncating 64-bit offset to 32 bits",
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    "datePublished": "2025-01-31T11:25:31.792Z",
    "dateReserved": "2024-12-29T08:45:45.733Z",
    "dateUpdated": "2026-05-23T15:56:50.659Z",
    "state": "PUBLISHED"
  },
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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.

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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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