Vulnerability-Lookup

GHSA-VWF3-WW8V-29C4

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: ipc3-control: Use overflow checks in control_update size calc

In sof_ipc3_control_update(), the expected_size calculation uses firmware-provided cdata->num_elems in arithmetic that could overflow on 32-bit platforms, wrapping to a small value. This would allow the cdata->rhdr.hdr.size comparison to pass with mismatched sizes, potentially leading to out-of-bounds access in snd_sof_update_control.

Use check_mul_overflow() and check_add_overflow() to detect and reject overflowed size calculations.

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-2026-72302"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:02Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: ipc3-control: Use overflow checks in control_update size calc\n\nIn sof_ipc3_control_update(), the expected_size calculation uses\nfirmware-provided cdata-\u003enum_elems in arithmetic that could overflow\non 32-bit platforms, wrapping to a small value. This would allow the\ncdata-\u003erhdr.hdr.size comparison to pass with mismatched sizes,\npotentially leading to out-of-bounds access in snd_sof_update_control.\n\nUse check_mul_overflow() and check_add_overflow() to detect and reject\noverflowed size calculations.",
  "id": "GHSA-vwf3-ww8v-29c4",
  "modified": "2026-08-17T06:33:22Z",
  "published": "2026-08-15T06:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72302"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/312c7d2ebe696da3f885eee77d52297664e57c53"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6856b3c23b0995eefad5a6142b4365ef70e1fe4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/711d912b18763af62a63aa8f2419a774eb63bba4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8791977d7289f6e9d2b014f60a5455f053a7bc04"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89a2309a9eec80d4c19e3aed62c4f923594d1911"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3"
    }
  ],
  "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-2026-72302 (GCVE-0-2026-72302)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:55 – Updated: 2026-08-17 05:42

Title

ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc

Summary

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc In sof_ipc3_control_update(), the expected_size calculation uses firmware-provided cdata->num_elems in arithmetic that could overflow on 32-bit platforms, wrapping to a small value. This would allow the cdata->rhdr.hdr.size comparison to pass with mismatched sizes, potentially leading to out-of-bounds access in snd_sof_update_control. Use check_mul_overflow() and check_add_overflow() to detect and reject overflowed size calculations.

Severity

7.8 (High)


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

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/6856b3c23b0995eef…
https://git.kernel.org/stable/c/89a2309a9eec80d4c…
https://git.kernel.org/stable/c/ffd79e77f2fbacd7a…
https://git.kernel.org/stable/c/711d912b18763af62…
https://git.kernel.org/stable/c/312c7d2ebe696da3f…
https://git.kernel.org/stable/c/8791977d7289f6e9d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 10f461d79c2d1afb22344986cc1b4631169cf25e , < 6856b3c23b0995eefad5a6142b4365ef70e1fe4a (git) Affected: 10f461d79c2d1afb22344986cc1b4631169cf25e , < 89a2309a9eec80d4c19e3aed62c4f923594d1911 (git) Affected: 10f461d79c2d1afb22344986cc1b4631169cf25e , < ffd79e77f2fbacd7a5d40ad1d4c7f3f089a8f2f3 (git) Affected: 10f461d79c2d1afb22344986cc1b4631169cf25e , < 711d912b18763af62a63aa8f2419a774eb63bba4 (git) Affected: 10f461d79c2d1afb22344986cc1b4631169cf25e , < 312c7d2ebe696da3f885eee77d52297664e57c53 (git) Affected: 10f461d79c2d1afb22344986cc1b4631169cf25e , < 8791977d7289f6e9d2b014f60a5455f053a7bc04 (git)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 6.1.178 , ≤ 6.1.* (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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{
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/sof/ipc3-control.c"
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              "status": "unaffected",
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              "cpeMatch": [
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          "lang": "en",
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        }
      ],
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              "value": "AV:L - The flaw is reached when the on-chip SOF DSP delivers IPC3 GET_VALUE/GET_DATA component notifications via mailbox IRQ into sof_ipc3_control_update(); this requires local access to SOF-equipped audio hardware, not remote network delivery.\nAC:L - On affected 32-bit builds, firmware-supplied num_elems deterministically wraps expected_size so the hdr.size check passes; a local attacker can repeatedly drive DSP control notifications through ALSA without uncontrollable races or victim-specific state.\nPR:L - Only an unprivileged local user able to open ALSA control devices on SOF IPC3 hardware (typical audio-group access on laptops, Chromebooks, and 32-bit embedded tablets) is needed to exercise DSP control paths that deliver the malformed IPC payloads.\nUI:N - No separate victim interaction is required; the attacker triggers SOF control-update handling through their own ALSA audio/control activity and the kernel processes the malformed IPC notification automatically.\nS:U - Heap corruption and control-cache overread/overwrite remain within the host kernel audio driver on the same machine and do not cross VM, container, or IOMMU boundaries into another security authority.\nC:H - Bypassed size validation lets snd_sof_update_control() read chanv/binary data past the kmalloc IPC buffer via loops or memcpy, yielding out-of-bounds kernel heap reads that can disclose adjacent memory contents.\nI:H - Crafted num_elems drives out-of-bounds copying from the IPC message into control caches, corrupting kernel heap objects and enabling attacker-influenced writes exploitable for further privilege escalation.\nA:H - Out-of-bounds accesses during IRQ-threaded IPC3 control-update handling can cause KASAN faults, unhandled page faults, kernel oops, or panic under realistic SOF audio workloads on 32-bit systems."
            }
          ]
        }
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        "dateUpdated": "2026-08-17T05:42:34.654Z",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72302",
    "datePublished": "2026-08-15T05:55:21.049Z",
    "dateReserved": "2026-08-09T03:40:39.918Z",
    "dateUpdated": "2026-08-17T05:42:34.654Z",
    "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.

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.
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-VWF3-WW8V-29C4

CVE-2026-72302 (GCVE-0-2026-72302)

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Sightings

Nomenclature