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GHSA-WWQV-J45W-MMQP

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-14 21:30

Details

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

firmware_loader: Fix memory leak in firmware upload

In the case of firmware-upload, an instance of struct fw_upload is allocated in firmware_upload_register(). This data needs to be freed in fw_dev_release(). Create a new fw_upload_free() function in sysfs_upload.c to handle the firmware-upload specific memory frees and incorporate the missing kfree call for the fw_upload structure.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49949"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:21Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware_loader: Fix memory leak in firmware upload\n\nIn the case of firmware-upload, an instance of struct fw_upload is\nallocated in firmware_upload_register(). This data needs to be freed\nin fw_dev_release(). Create a new fw_upload_free() function in\nsysfs_upload.c to handle the firmware-upload specific memory frees\nand incorporate the missing kfree call for the fw_upload structure.",
  "id": "GHSA-wwqv-j45w-mmqp",
  "modified": "2025-11-14T21:30:27Z",
  "published": "2025-06-18T12:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49949"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/789bba82f63c3e81dce426ba457fc7905b30ac6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/baf92485d111be828e1ab84a995515b604b938e5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49949 (GCVE-0-2022-49949)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2026-05-11 19:09

Title

firmware_loader: Fix memory leak in firmware upload

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware_loader: Fix memory leak in firmware upload In the case of firmware-upload, an instance of struct fw_upload is allocated in firmware_upload_register(). This data needs to be freed in fw_dev_release(). Create a new fw_upload_free() function in sysfs_upload.c to handle the firmware-upload specific memory frees and incorporate the missing kfree call for the fw_upload structure.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/baf92485d111be828…
https://git.kernel.org/stable/c/789bba82f63c3e81d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 97730bbb242cde22b7140acd202ffd88823886c9 , < baf92485d111be828e1ab84a995515b604b938e5 (git) Affected: 97730bbb242cde22b7140acd202ffd88823886c9 , < 789bba82f63c3e81dce426ba457fc7905b30ac6e (git)
Linux	Linux	Affected: 5.19 Unaffected: 0 , < 5.19 (semver) Unaffected: 5.19.8 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix)

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  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/base/firmware_loader/sysfs.c",
            "drivers/base/firmware_loader/sysfs.h",
            "drivers/base/firmware_loader/sysfs_upload.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "baf92485d111be828e1ab84a995515b604b938e5",
              "status": "affected",
              "version": "97730bbb242cde22b7140acd202ffd88823886c9",
              "versionType": "git"
            },
            {
              "lessThan": "789bba82f63c3e81dce426ba457fc7905b30ac6e",
              "status": "affected",
              "version": "97730bbb242cde22b7140acd202ffd88823886c9",
              "versionType": "git"
            }
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/base/firmware_loader/sysfs.c",
            "drivers/base/firmware_loader/sysfs.h",
            "drivers/base/firmware_loader/sysfs_upload.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.8",
                  "versionStartIncluding": "5.19",
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                }
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware_loader: Fix memory leak in firmware upload\n\nIn the case of firmware-upload, an instance of struct fw_upload is\nallocated in firmware_upload_register(). This data needs to be freed\nin fw_dev_release(). Create a new fw_upload_free() function in\nsysfs_upload.c to handle the firmware-upload specific memory frees\nand incorporate the missing kfree call for the fw_upload structure."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:09:47.562Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "references": [
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          "url": "https://git.kernel.org/stable/c/baf92485d111be828e1ab84a995515b604b938e5"
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          "url": "https://git.kernel.org/stable/c/789bba82f63c3e81dce426ba457fc7905b30ac6e"
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      ],
      "title": "firmware_loader: Fix memory leak in firmware upload",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49949",
    "datePublished": "2025-06-18T11:00:13.277Z",
    "dateReserved": "2025-06-18T10:57:27.382Z",
    "dateUpdated": "2026-05-11T19:09:47.562Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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-WWQV-J45W-MMQP

CVE-2022-49949 (GCVE-0-2022-49949)

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