Vulnerability-Lookup

GHSA-VMJP-JVMV-9WWR

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

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

iio: buffer: hw-consumer: free scan_mask on buffer release

The scan_mask lifetime changed in commit 9a2e1233d38c ("iio: buffer: hw-consumer: remove redundant scan_mask flexible array").

Before that change, the scan mask storage was embedded in struct hw_consumer_buffer, so iio_hw_buf_release() could free the whole allocation with a single kfree(hw_buf).

That commit moved the scan mask to a separate bitmap_zalloc() allocation stored in buffer.scan_mask, but left iio_hw_buf_release() unchanged.

Free the scan mask in iio_hw_buf_release() before freeing the buffer wrapper.

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  "affected": [],
  "aliases": [
    "CVE-2026-64498"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:35Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: hw-consumer: free scan_mask on buffer release\n\nThe scan_mask lifetime changed in commit 9a2e1233d38c (\"iio: buffer:\nhw-consumer: remove redundant scan_mask flexible array\").\n\nBefore that change, the scan mask storage was embedded in struct\nhw_consumer_buffer, so iio_hw_buf_release() could free the whole\nallocation with a single kfree(hw_buf).\n\nThat commit moved the scan mask to a separate bitmap_zalloc() allocation\nstored in buffer.scan_mask, but left iio_hw_buf_release() unchanged.\n\nFree the scan mask in iio_hw_buf_release() before freeing the buffer\nwrapper.",
  "id": "GHSA-vmjp-jvmv-9wwr",
  "modified": "2026-07-25T12:31:38Z",
  "published": "2026-07-25T12:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64498"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6325d6e2204327965b849c0a16efb6ac9202e5a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64498 (GCVE-0-2026-64498)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-07-25 08:51

Title

iio: buffer: hw-consumer: free scan_mask on buffer release

Summary

In the Linux kernel, the following vulnerability has been resolved: iio: buffer: hw-consumer: free scan_mask on buffer release The scan_mask lifetime changed in commit 9a2e1233d38c ("iio: buffer: hw-consumer: remove redundant scan_mask flexible array"). Before that change, the scan mask storage was embedded in struct hw_consumer_buffer, so iio_hw_buf_release() could free the whole allocation with a single kfree(hw_buf). That commit moved the scan mask to a separate bitmap_zalloc() allocation stored in buffer.scan_mask, but left iio_hw_buf_release() unchanged. Free the scan mask in iio_hw_buf_release() before freeing the buffer wrapper.

Severity

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/fb8e18f8ca724bd4d…
https://git.kernel.org/stable/c/6325d6e2204327965…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9a2e1233d38c460ad07f36901931f3674a32d1ed , < fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71 (git) Affected: 9a2e1233d38c460ad07f36901931f3674a32d1ed , < 6325d6e2204327965b849c0a16efb6ac9202e5a8 (git)
Linux	Linux	Affected: 7.1 Unaffected: 0 , < 7.1 (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

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JSON

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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/buffer/industrialio-hw-consumer.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71",
              "status": "affected",
              "version": "9a2e1233d38c460ad07f36901931f3674a32d1ed",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "9a2e1233d38c460ad07f36901931f3674a32d1ed",
              "versionType": "git"
            }
          ]
        },
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/buffer/industrialio-hw-consumer.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "7.1",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "7.1",
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                }
              ],
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              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: hw-consumer: free scan_mask on buffer release\n\nThe scan_mask lifetime changed in commit 9a2e1233d38c (\"iio: buffer:\nhw-consumer: remove redundant scan_mask flexible array\").\n\nBefore that change, the scan mask storage was embedded in struct\nhw_consumer_buffer, so iio_hw_buf_release() could free the whole\nallocation with a single kfree(hw_buf).\n\nThat commit moved the scan mask to a separate bitmap_zalloc() allocation\nstored in buffer.scan_mask, but left iio_hw_buf_release() unchanged.\n\nFree the scan mask in iio_hw_buf_release() before freeing the buffer\nwrapper."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T08:51:54.625Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/fb8e18f8ca724bd4de4643cad5b7c7230b9a5a71"
        },
        {
          "url": "https://git.kernel.org/stable/c/6325d6e2204327965b849c0a16efb6ac9202e5a8"
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      ],
      "title": "iio: buffer: hw-consumer: free scan_mask on buffer release",
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64498",
    "datePublished": "2026-07-25T08:51:54.625Z",
    "dateReserved": "2026-07-19T15:36:31.792Z",
    "dateUpdated": "2026-07-25T08:51:54.625Z",
    "state": "PUBLISHED"
  },
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  "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.

Detection rules are retrieved from Rulezet.

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.

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GHSA-VMJP-JVMV-9WWR

CVE-2026-64498 (GCVE-0-2026-64498)

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Nomenclature