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

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:45
VLAI
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
References
Impacted products
Vendor Product Version CPE status
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)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/fsl/fsl_audmix.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7513831b90a38d55fa089e3e1b49691e467afee6",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            },
            {
              "lessThan": "b4774a7da12b14fc37219ab4368d1907f9b5aca4",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            },
            {
              "lessThan": "8fb4364eb494b926d009bfaf3c98f07c3aa5d9f3",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            },
            {
              "lessThan": "0b10c6203e62d9e7337cc401568b201f9bac79ec",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            },
            {
              "lessThan": "b36d6d48faa6b1bb723b8f4e527c531a1a68520e",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            },
            {
              "lessThan": "0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            },
            {
              "lessThan": "5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            },
            {
              "lessThan": "3cd17e4e2871114d5579fa7bc8da66faf7fc1930",
              "status": "affected",
              "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/fsl/fsl_audmix.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "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"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "scenarios": [
            {
              "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."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:45:31.193Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7513831b90a38d55fa089e3e1b49691e467afee6"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4774a7da12b14fc37219ab4368d1907f9b5aca4"
        },
        {
          "url": "https://git.kernel.org/stable/c/8fb4364eb494b926d009bfaf3c98f07c3aa5d9f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/0b10c6203e62d9e7337cc401568b201f9bac79ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/b36d6d48faa6b1bb723b8f4e527c531a1a68520e"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c"
        },
        {
          "url": "https://git.kernel.org/stable/c/5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a"
        },
        {
          "url": "https://git.kernel.org/stable/c/3cd17e4e2871114d5579fa7bc8da66faf7fc1930"
        }
      ],
      "title": "ASoC: fsl: fsl_audmix: Validate written enum values",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "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"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-74293",
      "date": "2026-09-21",
      "epss": "0.00129",
      "percentile": "0.02947"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "sound/soc/fsl/fsl_audmix.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "7513831b90a38d55fa089e3e1b49691e467afee6",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b4774a7da12b14fc37219ab4368d1907f9b5aca4",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "8fb4364eb494b926d009bfaf3c98f07c3aa5d9f3",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0b10c6203e62d9e7337cc401568b201f9bac79ec",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b36d6d48faa6b1bb723b8f4e527c531a1a68520e",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3cd17e4e2871114d5579fa7bc8da66faf7fc1930",
                    "status": "affected",
                    "version": "be1df61cf06efb355c90702e46b8d46f055acb4e",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "sound/soc/fsl/fsl_audmix.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.2"
                  },
                  {
                    "lessThan": "5.2",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "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"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.145",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.97",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.40",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.1.*",
                    "status": "unaffected",
                    "version": "7.1.5",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.2",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "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."
          }
        ],
        "id": "CVE-2026-74293",
        "lastModified": "2026-08-17T06:19:23.300",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-08-15T06:22:28.877",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/0b10c6203e62d9e7337cc401568b201f9bac79ec"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/0f1510e84d7bfc3eb9538efa65c6ea0aadf1078c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/3cd17e4e2871114d5579fa7bc8da66faf7fc1930"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/5b7a23c1ed04e794ef3b31e452ef5c93e1e34b4a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/7513831b90a38d55fa089e3e1b49691e467afee6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/8fb4364eb494b926d009bfaf3c98f07c3aa5d9f3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b36d6d48faa6b1bb723b8f4e527c531a1a68520e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b4774a7da12b14fc37219ab4368d1907f9b5aca4"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-19T10:01:29+00:00",
      "cve": "CVE-2026-74293",
      "id": "CVE-2026-74293",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ASoC: fsl: fsl_audmix: Validate written enum values",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74293.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.