Vulnerability-Lookup

GHSA-P8CV-F9J9-548C

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: fsl: fsl_audmix: Validate written enum values

fsl_audmix_put_mix_clk_src() and fsl_audmix_put_out_src() convert the user-provided enum item with snd_soc_enum_item_to_val() before checking whether the item is within the enum's item count.

The generic snd_soc_put_enum_double() helper performs that validation, but these callbacks use the converted value first: the clock-source path tests it with BIT(), and the output-source path indexes the prms transition table with it.

Reject out-of-range enum items before converting them.

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-2026-74293"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:28Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: fsl: fsl_audmix: Validate written enum values\n\nfsl_audmix_put_mix_clk_src() and fsl_audmix_put_out_src()\nconvert the user-provided enum item with snd_soc_enum_item_to_val()\nbefore checking whether the item is within the enum\u0027s item count.\n\nThe generic snd_soc_put_enum_double() helper performs that\nvalidation, but these callbacks use the converted value first: the\nclock-source path tests it with BIT(), and the output-source path\nindexes the prms transition table with it.\n\nReject out-of-range enum items before converting them.",
  "id": "GHSA-p8cv-f9j9-548c",
  "modified": "2026-08-17T06:33:36Z",
  "published": "2026-08-15T06:32:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74293"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b10c6203e62d9e7337cc401568b201f9bac79ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3cd17e4e2871114d5579fa7bc8da66faf7fc1930"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7513831b90a38d55fa089e3e1b49691e467afee6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fb4364eb494b926d009bfaf3c98f07c3aa5d9f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b36d6d48faa6b1bb723b8f4e527c531a1a68520e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4774a7da12b14fc37219ab4368d1907f9b5aca4"
    }
  ],
  "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-2026-74293 (GCVE-0-2026-74293)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:45

Title

ASoC: fsl: fsl_audmix: Validate written enum values

Summary

In the Linux kernel, the following vulnerability has been resolved: ASoC: fsl: fsl_audmix: Validate written enum values fsl_audmix_put_mix_clk_src() and fsl_audmix_put_out_src() convert the user-provided enum item with snd_soc_enum_item_to_val() before checking whether the item is within the enum's item count. The generic snd_soc_put_enum_double() helper performs that validation, but these callbacks use the converted value first: the clock-source path tests it with BIT(), and the output-source path indexes the prms transition table with it. Reject out-of-range enum items before converting them.

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

8 references

URL	Tags
https://git.kernel.org/stable/c/7513831b90a38d55f…
https://git.kernel.org/stable/c/b4774a7da12b14fc3…
https://git.kernel.org/stable/c/8fb4364eb494b926d…
https://git.kernel.org/stable/c/0b10c6203e62d9e73…
https://git.kernel.org/stable/c/b36d6d48faa6b1bb7…
https://git.kernel.org/stable/c/0f1510e84d7bfc3eb…
https://git.kernel.org/stable/c/5b7a23c1ed04e794e…
https://git.kernel.org/stable/c/3cd17e4e2871114d5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < 7513831b90a38d55fa089e3e1b49691e467afee6 (git) Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < b4774a7da12b14fc37219ab4368d1907f9b5aca4 (git) Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < 8fb4364eb494b926d009bfaf3c98f07c3aa5d9f3 (git) Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < 0b10c6203e62d9e7337cc401568b201f9bac79ec (git) Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < b36d6d48faa6b1bb723b8f4e527c531a1a68520e (git) Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < 0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c (git) Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < 5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a (git) Affected: be1df61cf06efb355c90702e46b8d46f055acb4e , < 3cd17e4e2871114d5579fa7bc8da66faf7fc1930 (git)
Linux	Linux	Affected: 5.2 Unaffected: 0 , < 5.2 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (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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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/fsl/fsl_audmix.c"
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              "lessThan": "7513831b90a38d55fa089e3e1b49691e467afee6",
              "status": "affected",
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            {
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            },
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            {
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          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
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              "status": "unaffected",
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            },
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              "versionType": "original_commit_for_fix"
            }
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                {
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                {
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                  "vulnerable": true
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: fsl: fsl_audmix: Validate written enum values\n\nfsl_audmix_put_mix_clk_src() and fsl_audmix_put_out_src()\nconvert the user-provided enum item with snd_soc_enum_item_to_val()\nbefore checking whether the item is within the enum\u0027s item count.\n\nThe generic snd_soc_put_enum_double() helper performs that\nvalidation, but these callbacks use the converted value first: the\nclock-source path tests it with BIT(), and the output-source path\nindexes the prms transition table with it.\n\nReject out-of-range enum items before converting them."
        }
      ],
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            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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              "lang": "en",
              "value": "AV:L - Exploitation requires a local SNDRV_CTL_IOCTL_ELEM_WRITE to /dev/snd/controlC* for the fsl-audmix \"Output Source\" or \"Mixing Clock Source\" mixer controls; no network, Bluetooth, or physical-input path reaches these put callbacks.\nAC:L - On default builds without CONFIG_SND_CTL_INPUT_VALIDATION, a single ioctl supplying an out-of-range enumerated.item[0] deterministically reaches the buggy snd_soc_enum_item_to_val()/prms[] indexing before snd_soc_put_enum_double() rejects the value; no race or uncontrollable state is needed.\nPR:L - snd_ctl_open() and snd_ctl_elem_write() perform no capability or namespace checks; any local user with ordinary access to the ALSA control device (common on i.MX8QM/i.MX952 automotive/embedded systems via audio-group or seat ACLs) can trigger the vulnerable callbacks.\nUI:N - The attacker issues the control write from its own process after opening the control device; no separate victim action such as mounting a filesystem or opening a file is required.\nS:U - The flaw corrupts or misreads kernel data and programs on-chip AUDMIX MMIO within the same host kernel security authority; it does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Out-of-range enum indices are used to index the static prms[out_src][val] transition table and in BIT(val) before bounds checks, causing out-of-bounds reads of kernel rodata that are copied into transition state and can disclose adjacent memory contents.\nI:H - Attacker-chosen indices can select unintended prms transition cells or out-of-bounds prm data that pass fsl_audmix_state_trans() and drive snd_soc_component_update_bits() to write attacker-influenced mask/ctr values into AUDMIX hardware control registers.\nA:H - Large enum values can provoke undefined BIT() shifts, read past the prms table boundary, and program invalid AUDMIX control-register states that can kernel-fault or hang the audio subsystem; conservative scoring treats this memory-corruption class as high availability impact."
            }
          ]
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        "dateUpdated": "2026-08-17T05:45:31.193Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        },
        {
          "url": "https://git.kernel.org/stable/c/3cd17e4e2871114d5579fa7bc8da66faf7fc1930"
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      "title": "ASoC: fsl: fsl_audmix: Validate written enum values",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74293",
    "datePublished": "2026-08-15T05:57:58.889Z",
    "dateReserved": "2026-08-15T05:44:03.881Z",
    "dateUpdated": "2026-08-17T05:45:31.193Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "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.
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-P8CV-F9J9-548C

CVE-2026-74293 (GCVE-0-2026-74293)

Tags

Sightings

Nomenclature