Vulnerability-Lookup

GHSA-P327-QW84-66RM

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33

Details

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

ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put

In sof_ipc4_bytes_put(), the copy size is derived from the old data->size in the buffer rather than the incoming new data's size field from ucontrol. If the new data has a different size, the copy uses the wrong length: it may truncate valid data or copy stale bytes.

Fix by validating and using the incoming data's sof_abi_hdr.size from ucontrol before copying.

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-2026-72304"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:03Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put\n\nIn sof_ipc4_bytes_put(), the copy size is derived from the old\ndata-\u003esize in the buffer rather than the incoming new data\u0027s size\nfield from ucontrol. If the new data has a different size, the copy\nuses the wrong length: it may truncate valid data or copy stale bytes.\n\nFix by validating and using the incoming data\u0027s sof_abi_hdr.size from\nucontrol before copying.",
  "id": "GHSA-p327-qw84-66rm",
  "modified": "2026-08-17T06:33:22Z",
  "published": "2026-08-15T06:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72304"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/038406abde0d0883419ec89425ea941ec8bbef95"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/266f936db83aee6ca6473bbb06259bda52bf4fc3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ad673e7139cf214afd24321a829aad6575f4163"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4cf6a7ebbf8787393b158b2cc341723e5bebc4a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb4293173db2d474d8fbc0e5ecf4943e6df2b40e"
    }
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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-2026-72304 (GCVE-0-2026-72304)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:55 – Updated: 2026-10-16 18:55

Title

ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put

Summary

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-control: Fix TOCTOU in sof_ipc4_bytes_put In sof_ipc4_bytes_put(), the copy size is derived from the old data->size in the buffer rather than the incoming new data's size field from ucontrol. If the new data has a different size, the copy uses the wrong length: it may truncate valid data or copy stale bytes. Fix by validating and using the incoming data's sof_abi_hdr.size from ucontrol before copying.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 18:46 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6992 records in the last 180 days details

References

5 references

URL	Tags
https://git.kernel.org/stable/c/266f936db83aee6ca…
https://git.kernel.org/stable/c/4cf6a7ebbf8787393…
https://git.kernel.org/stable/c/fb4293173db2d474d…
https://git.kernel.org/stable/c/038406abde0d08834…
https://git.kernel.org/stable/c/3ad673e7139cf214a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a062c8899fede2ab5660a817e9b602d3fa280a99 , < 266f936db83aee6ca6473bbb06259bda52bf4fc3 (git) Affected: a062c8899fede2ab5660a817e9b602d3fa280a99 , < 4cf6a7ebbf8787393b158b2cc341723e5bebc4a8 (git) Affected: a062c8899fede2ab5660a817e9b602d3fa280a99 , < fb4293173db2d474d8fbc0e5ecf4943e6df2b40e (git) Affected: a062c8899fede2ab5660a817e9b602d3fa280a99 , < 038406abde0d0883419ec89425ea941ec8bbef95 (git) Affected: a062c8899fede2ab5660a817e9b602d3fa280a99 , < 3ad673e7139cf214afd24321a829aad6575f4163 (git)
Linux	Linux	Affected: 6.4 Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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JSON

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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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