Vulnerability-Lookup

GHSA-RVPX-GHPC-J5CF

Vulnerability from github – Published: 2026-08-27 06:31 – Updated: 2026-08-27 06:31

Details

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

ASoC: tas2562: Validate values for volume writes

tas2562_volume_control_put() does not do any validation of the control value written by userspace, it uses it to look up a value in a fixed size array which can easily be overflowed and then writes whatever value it gets back to the device. Add validation that we are loading a value we have in the array.

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-2026-80526"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T15:17:06Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: tas2562: Validate values for volume writes\n\ntas2562_volume_control_put() does not do any validation of the control\nvalue written by userspace, it uses it to look up a value in a fixed\nsize array which can easily be overflowed and then writes whatever value\nit gets back to the device.  Add validation that we are loading a value\nwe have in the array.",
  "id": "GHSA-rvpx-ghpc-j5cf",
  "modified": "2026-08-27T06:31:31Z",
  "published": "2026-08-27T06:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80526"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f389ecd0c35e9e281036e44c121df904f3164c1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/20bdbb1376457ecbf418bf677fd285820d1fc011"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fb41964f7e4e4207c8999af2056894caa7a252a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c37a0461c0d0a70c5de4fdbd70449a7f53c12dda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db488d653d896fcf9ac87e15239924c2928bbc3c"
    }
  ],
  "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-2026-80526 (GCVE-0-2026-80526)

Vulnerability from cvelistv5 – Published: 2026-08-26 14:37 – Updated: 2026-08-27 05:01

Title

ASoC: tas2562: Validate values for volume writes

Summary

In the Linux kernel, the following vulnerability has been resolved: ASoC: tas2562: Validate values for volume writes tas2562_volume_control_put() does not do any validation of the control value written by userspace, it uses it to look up a value in a fixed size array which can easily be overflowed and then writes whatever value it gets back to the device. Add validation that we are loading a value we have in the array.

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

5 references

URL	Tags
https://git.kernel.org/stable/c/1f389ecd0c35e9e28…
https://git.kernel.org/stable/c/20bdbb1376457ecbf…
https://git.kernel.org/stable/c/db488d653d896fcf9…
https://git.kernel.org/stable/c/c37a0461c0d0a70c5…
https://git.kernel.org/stable/c/8fb41964f7e4e4207…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bf726b1c86f2caab70ad614cdf7da3b81ad08e69 , < 1f389ecd0c35e9e281036e44c121df904f3164c1 (git) Affected: bf726b1c86f2caab70ad614cdf7da3b81ad08e69 , < 20bdbb1376457ecbf418bf677fd285820d1fc011 (git) Affected: bf726b1c86f2caab70ad614cdf7da3b81ad08e69 , < db488d653d896fcf9ac87e15239924c2928bbc3c (git) Affected: bf726b1c86f2caab70ad614cdf7da3b81ad08e69 , < c37a0461c0d0a70c5de4fdbd70449a7f53c12dda (git) Affected: bf726b1c86f2caab70ad614cdf7da3b81ad08e69 , < 8fb41964f7e4e4207c8999af2056894caa7a252a (git)
Linux	Linux	Affected: 5.7 Unaffected: 0 , < 5.7 (semver) Unaffected: 6.6.153 , ≤ 6.6.* (semver) Unaffected: 6.12.105 , ≤ 6.12.* (semver) Unaffected: 6.18.46 , ≤ 6.18.* (semver) Unaffected: 7.1.10 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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JSON

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{
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "sound/soc/codecs/tas2562.c"
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          "product": "Linux",
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          "versions": [
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.18.46",
              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
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            {
              "cpeMatch": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: tas2562: Validate values for volume writes\n\ntas2562_volume_control_put() does not do any validation of the control\nvalue written by userspace, it uses it to look up a value in a fixed\nsize array which can easily be overflowed and then writes whatever value\nit gets back to the device.  Add validation that we are loading a value\nwe have in the array."
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            "baseSeverity": "HIGH",
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            "version": "3.1"
          },
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            {
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              "value": "AV:L - Exploitation requires a local attacker to issue SNDRV_CTL_IOCTL_ELEM_WRITE on /dev/snd/controlC*; the bug is in the ALSA SoC mixer put callback, not in any network-facing kernel service.\nAC:L - The attacker fully controls the integer volume value passed to tas2562_volume_control_put(); on default kernels without CONFIG_SND_CTL_INPUT_VALIDATION, out-of-range values reliably trigger the out-of-bounds lookup without races or external conditions.\nPR:L - Writing the Digital Volume Control requires only access to the ALSA control device node, typically granted to unprivileged users in the audio group via standard 0660 permissions, not root in the init namespace.\nUI:N - No victim interaction is required; the attacker directly sets the mixer control through the ALSA ioctl interface.\nS:U - Impact is confined to the kernel audio driver and attached TAS2562 amplifier on the same host; it does not cross VM, container, or IOMMU security boundaries.\nC:H - Missing index validation allows an out-of-bounds read of the static float_vol_db_lookup[] table in kernel memory; the attacker controls the index via the supplied volume value, leaking adjacent kernel .rodata contents.\nI:H - The out-of-bounds 32-bit value read from kernel memory is written into the TAS2562 DVC coefficient registers, allowing attacker-controlled arbitrary modification of digital amplifier gain on embedded and mobile speaker systems.\nA:H - Large out-of-bounds indices can fault on kernel memory access, and programming arbitrary DVC coefficients can overdrive the TAS2562 amplifier causing thermal shutdown, speaker damage, or loss of audio on affected devices."
            }
          ]
        }
      ],
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        "dateUpdated": "2026-08-27T05:01:20.942Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/8fb41964f7e4e4207c8999af2056894caa7a252a"
        }
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      "title": "ASoC: tas2562: Validate values for volume writes",
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    "datePublished": "2026-08-26T14:37:05.570Z",
    "dateReserved": "2026-08-26T14:34:25.764Z",
    "dateUpdated": "2026-08-27T05:01:20.942Z",
    "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.

Action not permitted

GHSA-RVPX-GHPC-J5CF

CVE-2026-80526 (GCVE-0-2026-80526)

Tags

Sightings

Nomenclature