FKIE_CVE-2026-90068

Vulnerability from fkie_nvd - Published: 2026-09-17 17:16 - Updated: 2026-09-17 17:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix off-by-one check on the second enum channel The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches e->items, but it lets item[1] be equal to it. Both go on to snd_soc_enum_item_to_val(), which indexes e->values with no bound of its own, so an enum with a value table reads one element past the end. The indexing arrived with the MUX consolidation, which relaxed the item[1] check in the same hunk. The value MUX handler it deleted used >= there, and the snd_soc_put_enum_double() in soc-ops.c still does. Only adav80x pairs a value table with two shifts, and its second channel looks accidental, but the control does report two values. Writing three into it reads off the end of adav80x_mux_values. The core catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which defaults off.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/10a36512c21f861a03fba461a7ead09023df9c1b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14511c9b54ceeeef487409d73947c89ee8563590
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/32fc048391112559c34cb88d13594546939a4cd6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/496081b4edc1f6e662418831c5b14cddd8d7920c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/55126ef66298e43c69f192acebae8c7cc0022cf6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/57ab955bde747327fb2042516ae1b7192c30e881
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/faf539af1a595a26e5a081a4e512caee2bc2f4c5
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/soc-dapm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "57ab955bde747327fb2042516ae1b7192c30e881",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            },
            {
              "lessThan": "806fa4e1f2bf73c54bc4b6360790ecc69d095ca5",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            },
            {
              "lessThan": "496081b4edc1f6e662418831c5b14cddd8d7920c",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            },
            {
              "lessThan": "faf539af1a595a26e5a081a4e512caee2bc2f4c5",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            },
            {
              "lessThan": "32fc048391112559c34cb88d13594546939a4cd6",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            },
            {
              "lessThan": "10a36512c21f861a03fba461a7ead09023df9c1b",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            },
            {
              "lessThan": "55126ef66298e43c69f192acebae8c7cc0022cf6",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            },
            {
              "lessThan": "14511c9b54ceeeef487409d73947c89ee8563590",
              "status": "affected",
              "version": "3727b4968453dbab8fe18f979d67285eb6b66801",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/soc-dapm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.15"
            },
            {
              "lessThan": "3.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "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: dapm: Fix off-by-one check on the second enum channel\n\nThe snd_soc_dapm_put_enum_double() rejects item[0] once it reaches\ne-\u003eitems, but it lets item[1] be equal to it.  Both go on to\nsnd_soc_enum_item_to_val(), which indexes e-\u003evalues with no bound of\nits own, so an enum with a value table reads one element past the end.\n\nThe indexing arrived with the MUX consolidation, which relaxed the\nitem[1] check in the same hunk.  The value MUX handler it deleted used\n\u003e= there, and the snd_soc_put_enum_double() in soc-ops.c still does.\n\nOnly adav80x pairs a value table with two shifts, and its second\nchannel looks accidental, but the control does report two values.\nWriting three into it reads off the end of adav80x_mux_values.  The\ncore catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which\ndefaults off."
    }
  ],
  "id": "CVE-2026-90068",
  "lastModified": "2026-09-17T17:16:55.697",
  "metrics": {},
  "published": "2026-09-17T17:16:55.697",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/10a36512c21f861a03fba461a7ead09023df9c1b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/14511c9b54ceeeef487409d73947c89ee8563590"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/32fc048391112559c34cb88d13594546939a4cd6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/496081b4edc1f6e662418831c5b14cddd8d7920c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/55126ef66298e43c69f192acebae8c7cc0022cf6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/57ab955bde747327fb2042516ae1b7192c30e881"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/faf539af1a595a26e5a081a4e512caee2bc2f4c5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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