Vulnerability-Lookup

CNVD-2025-05995

Vulnerability from cnvd - Published: 2025-03-26

Title

Linux kernel存在内存泄露漏洞（CNVD-2025-05995）

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存在内存泄露漏洞，该漏洞源于apple-aic在初始化时未正确处理节点引用计数，攻击者可利用该漏洞导致内存泄漏。

Severity

中

Patch Name

Linux kernel存在内存泄露漏洞的补丁

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存在内存泄露漏洞，该漏洞源于apple-aic在初始化时未正确处理节点引用计数，攻击者可利用该漏洞导致内存泄漏。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/3d45670fab3c25a7452721e4588cc95c51cda134

Reference

https://nvd.nist.gov/vuln/detail/CVE-2022-49718

Impacted products

Name
['Linux Kernel >=5.18，<5.18.6', 'Linux Kernel 5.19:rc1', 'Linux Kernel 5.19:rc2']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-49718",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-49718"
    }
  },
  "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\u5185\u5b58\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eapple-aic\u5728\u521d\u59cb\u5316\u65f6\u672a\u6b63\u786e\u5904\u7406\u8282\u70b9\u5f15\u7528\u8ba1\u6570\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1ahttps://git.kernel.org/stable/c/3d45670fab3c25a7452721e4588cc95c51cda134",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-05995",
  "openTime": "2025-03-26",
  "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\u5185\u5b58\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eapple-aic\u5728\u521d\u59cb\u5316\u65f6\u672a\u6b63\u786e\u5904\u7406\u8282\u70b9\u5f15\u7528\u8ba1\u6570\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\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\u5b58\u5728\u5185\u5b58\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Linux Kernel \u003e=5.18\uff0c\u003c5.18.6",
      "Linux Kernel 5.19:rc1",
      "Linux Kernel 5.19:rc2"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2022-49718",
  "serverity": "\u4e2d",
  "submitTime": "2025-03-05",
  "title": "Linux kernel\u5b58\u5728\u5185\u5b58\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2025-05995\uff09"
}

CVE-2022-49718 (GCVE-0-2022-49718)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:24 – Updated: 2026-05-11 19:05

Title

irqchip/apple-aic: Fix refcount leak in aic_of_ic_init

Summary

In the Linux kernel, the following vulnerability has been resolved: irqchip/apple-aic: Fix refcount leak in aic_of_ic_init of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

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 19:32 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6653 records in the last 180 days details

References

2 references

URL	Tags
https://git.kernel.org/stable/c/6c0010d1dc67c89bc…
https://git.kernel.org/stable/c/3d45670fab3c25a74…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a5e8801202b318622ea526aa5625e5f7eceb4d26 , < 6c0010d1dc67c89bcc857c46f542efe318f84ddc (git) Affected: a5e8801202b318622ea526aa5625e5f7eceb4d26 , < 3d45670fab3c25a7452721e4588cc95c51cda134 (git)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 5.18.6 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

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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-2022-49718",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:32:09.921634Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:36:44.349Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-apple-aic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6c0010d1dc67c89bcc857c46f542efe318f84ddc",
              "status": "affected",
              "version": "a5e8801202b318622ea526aa5625e5f7eceb4d26",
              "versionType": "git"
            },
            {
              "lessThan": "3d45670fab3c25a7452721e4588cc95c51cda134",
              "status": "affected",
              "version": "a5e8801202b318622ea526aa5625e5f7eceb4d26",
              "versionType": "git"
            }
          ]
        },
        {
          "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": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.6",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/apple-aic: Fix refcount leak in aic_of_ic_init\n\nof_get_child_by_name() returns a node pointer with refcount\nincremented, we should use of_node_put() on it when not need anymore.\nAdd missing of_node_put() to avoid refcount leak."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:05:30.444Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6c0010d1dc67c89bcc857c46f542efe318f84ddc"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d45670fab3c25a7452721e4588cc95c51cda134"
        }
      ],
      "title": "irqchip/apple-aic: Fix refcount leak in aic_of_ic_init",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49718",
    "datePublished": "2025-02-26T02:24:32.873Z",
    "dateReserved": "2025-02-26T02:21:30.445Z",
    "dateUpdated": "2026-05-11T19:05:30.444Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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