GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-72415 (GCVE-0-2026-72415)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-08-17 05:43
VLAI
Title
ASoC: SDCA: Validate written enum value in ge_put_enum_double()
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: SDCA: Validate written enum value in ge_put_enum_double() ge_put_enum_double() passes the user-supplied enumeration index item[0] to snd_soc_enum_item_to_val() without checking it against the number of items in the enum: ret = snd_soc_enum_item_to_val(e, item[0]); snd_soc_enum_item_to_val() indexes the heap-allocated e->values[] array with that index (e->values is set from a devm_kcalloc() of e->items entries), so a control write with an out-of-range item[0] reads past the end of the values buffer. The bounds check in snd_soc_dapm_put_enum_double() only runs afterwards, so it does not prevent the read here. Reject an out-of-range item before using it, matching the other enum put handlers. This issue was pointed out by the Sashiko AI review bot while reviewing a related enum-validation series: https://lore.kernel.org/all/20260609125735.CEB651F00893@smtp.kernel.org/
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 812ff1baa764080ba37bb0729e0c23c0e869b542 , < 33387bf9bb6116a0429f823f8dab3accf8f8e09c (git)
Affected: 812ff1baa764080ba37bb0729e0c23c0e869b542 , < 1ce42a11bed134903e352010a01fa53073a6b395 (git)
guessed Create a notification for this product.
Linux Linux Affected: 7.0
Unaffected: 0 , < 7.0 (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/sdca/sdca_asoc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "33387bf9bb6116a0429f823f8dab3accf8f8e09c",
              "status": "affected",
              "version": "812ff1baa764080ba37bb0729e0c23c0e869b542",
              "versionType": "git"
            },
            {
              "lessThan": "1ce42a11bed134903e352010a01fa53073a6b395",
              "status": "affected",
              "version": "812ff1baa764080ba37bb0729e0c23c0e869b542",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/sdca/sdca_asoc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "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": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SDCA: Validate written enum value in ge_put_enum_double()\n\nge_put_enum_double() passes the user-supplied enumeration index\nitem[0] to snd_soc_enum_item_to_val() without checking it against the\nnumber of items in the enum:\n\n\tret = snd_soc_enum_item_to_val(e, item[0]);\n\nsnd_soc_enum_item_to_val() indexes the heap-allocated e-\u003evalues[] array\nwith that index (e-\u003evalues is set from a devm_kcalloc() of e-\u003eitems\nentries), so a control write with an out-of-range item[0] reads past the\nend of the values buffer.  The bounds check in\nsnd_soc_dapm_put_enum_double() only runs afterwards, so it does not\nprevent the read here.\n\nReject an out-of-range item before using it, matching the other enum put\nhandlers.\n\nThis issue was pointed out by the Sashiko AI review bot while reviewing a\nrelated enum-validation series:\nhttps://lore.kernel.org/all/20260609125735.CEB651F00893@smtp.kernel.org/"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is reached only via a local ALSA mixer control write (SNDRV_CTL_IOCTL_ELEM_WRITE on /dev/snd/controlC*) to the SDCA Group Entity \"Selected Mode\" enum exposed by ge_put_enum_double(); there is no network, Bluetooth, or physical-bus packet path to this handler.\nAC:L - An attacker can reliably issue a control write with an out-of-range enumerated index; the only extra condition is detected jack mode \u003e2, which is satisfied by plugging a headset into the affected laptop\u0027s audio jack on typical SDCA-equipped systems.\nPR:L - Exploitation requires only local access to the ALSA control device, which on standard desktop and laptop distributions is available to unprivileged users in the audio group without CAP_SYS_ADMIN or init-namespace root.\nUI:N - No action by a separate victim is required; the attacker triggers the vulnerable put handler directly through their own ioctl or mixer-tool write to the affected control.\nS:U - The out-of-bounds read corrupts kernel heap metadata or leaks adjacent kernel memory within the same kernel security boundary; it does not by itself cross VM, container, or IOMMU isolation boundaries.\nC:H - snd_soc_enum_item_to_val() indexes the heap-allocated e-\u003evalues[] array with attacker-controlled item[0] before any bounds check, enabling an out-of-bounds kernel heap read that can disclose adjacent sensitive kernel memory contents.\nI:N - The defect is an out-of-bounds read only; snd_soc_dapm_put_enum_double() still rejects invalid indices before any register write, so the bug does not directly modify kernel memory or achieve arbitrary write or code execution.\nA:H - A sufficiently large out-of-range enum index can read far beyond the small devm_kcalloc()-allocated values buffer and fault on unmapped kernel memory, causing a kernel oops or panic and denial of service on affected SDCA audio systems."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:43:55.069Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/33387bf9bb6116a0429f823f8dab3accf8f8e09c"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ce42a11bed134903e352010a01fa53073a6b395"
        }
      ],
      "title": "ASoC: SDCA: Validate written enum value in ge_put_enum_double()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72415",
    "datePublished": "2026-08-15T05:56:36.210Z",
    "dateReserved": "2026-08-09T03:40:39.927Z",
    "dateUpdated": "2026-08-17T05:43:55.069Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-72415",
      "date": "2026-09-05",
      "epss": "0.0015",
      "percentile": "0.04448"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-72415\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-15T06:22:15.127\",\"lastModified\":\"2026-08-17T06:19:08.373\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nASoC: SDCA: Validate written enum value in ge_put_enum_double()\\n\\nge_put_enum_double() passes the user-supplied enumeration index\\nitem[0] to snd_soc_enum_item_to_val() without checking it against the\\nnumber of items in the enum:\\n\\n\\tret = snd_soc_enum_item_to_val(e, item[0]);\\n\\nsnd_soc_enum_item_to_val() indexes the heap-allocated e-\u003evalues[] array\\nwith that index (e-\u003evalues is set from a devm_kcalloc() of e-\u003eitems\\nentries), so a control write with an out-of-range item[0] reads past the\\nend of the values buffer.  The bounds check in\\nsnd_soc_dapm_put_enum_double() only runs afterwards, so it does not\\nprevent the read here.\\n\\nReject an out-of-range item before using it, matching the other enum put\\nhandlers.\\n\\nThis issue was pointed out by the Sashiko AI review bot while reviewing a\\nrelated enum-validation series:\\nhttps://lore.kernel.org/all/20260609125735.CEB651F00893@smtp.kernel.org/\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"sound/soc/sdca/sdca_asoc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"812ff1baa764080ba37bb0729e0c23c0e869b542\",\"lessThan\":\"33387bf9bb6116a0429f823f8dab3accf8f8e09c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"812ff1baa764080ba37bb0729e0c23c0e869b542\",\"lessThan\":\"1ce42a11bed134903e352010a01fa53073a6b395\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"sound/soc/sdca/sdca_asoc.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"7.0\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"7.0\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.5\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1ce42a11bed134903e352010a01fa53073a6b395\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/33387bf9bb6116a0429f823f8dab3accf8f8e09c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-19T17:40:21+00:00",
      "cve": "CVE-2026-72415",
      "id": "CVE-2026-72415",
      "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: SDCA: Validate written enum value in ge_put_enum_double()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72415.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.