{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/meson/aiu-acodec-ctrl.c",
            "sound/soc/meson/aiu-codec-ctrl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0965892cc486ca554d72eeb62d85ccf8d0137a5a",
              "status": "affected",
              "version": "b82b734c0e9a75e1b956214ac523a8eb590f51f3",
              "versionType": "git"
            },
            {
              "lessThan": "d65adf85477247be04ac86886f8edfaa047b5d4a",
              "status": "affected",
              "version": "b82b734c0e9a75e1b956214ac523a8eb590f51f3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/meson/aiu-acodec-ctrl.c",
            "sound/soc/meson/aiu-codec-ctrl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "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": "7.1.5",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: meson: aiu: Validate written enum values\n\nThe AIU HDMI and internal codec mux put callbacks use the written enum\nvalue with snd_soc_enum_item_to_val() before checking whether the value is\nvalid for the enumeration.\n\nReject out-of-range values before converting the enum item, matching the\nvalidation already done by the G12A HDMI and internal codec mux controls."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Exploitation requires issuing SNDRV_CTL_IOCTL_ELEM_WRITE against /dev/snd/controlC* on a Meson system with the AIU driver loaded; there is no network, adjacent-radio, or physical-device code path to the vulnerable mux put callbacks.\nAC:L - An attacker who can open the ALSA control device can reliably supply any out-of-range enumerated.item[0] value and trigger the bug on demand; no race, special memory layout, or other attacker-uncontrollable precondition is required.\nPR:L - On typical Linux-based Amlogic/Meson deployments (TV boxes, Kodi/SBC boards), unprivileged local users in the audio group can open the ALSA control device and write mixer controls without real root in the init namespace.\nUI:N - No victim interaction is required beyond the attacker opening /dev/snd/controlC* and writing the HDMI Source or ACodec Source enum control; no mount, playback, or other user action is needed.\nS:U - Impact is confined to the kernel audio subsystem on the local host; it does not cross VM, container, IOMMU, or other security boundaries into a different authority.\nC:H - Out-of-range mux values make snd_soc_dapm_mux_update_power() index past e-\u003etexts[] and pass the resulting pointer to strcmp(), causing an out-of-bounds kernel memory read that can disclose adjacent kernel data.\nI:L - The bug can force limited integrity changes via FIELD_PREP-masked AIU MMIO mux register writes and DAPM route reconnections, but it does not provide arbitrary kernel memory write or code-execution primitives.\nA:H - strcmp() on a pointer obtained from out-of-bounds e-\u003etexts[mux] can dereference invalid kernel addresses and trigger a kernel oops or panic, causing complete local audio/subsystem denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:45:32.272Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0965892cc486ca554d72eeb62d85ccf8d0137a5a"
        },
        {
          "url": "https://git.kernel.org/stable/c/d65adf85477247be04ac86886f8edfaa047b5d4a"
        }
      ],
      "title": "ASoC: meson: aiu: Validate written enum values",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74294",
    "datePublished": "2026-08-15T05:57:59.508Z",
    "dateReserved": "2026-08-15T05:44:03.882Z",
    "dateUpdated": "2026-08-17T05:45:32.272Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}