FKIE_CVE-2026-99068

Vulnerability from fkie_nvd - Published: 2026-10-23 13:17 - Updated: 2026-10-23 13:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers Commit e576e7843c0d ("ALSA: ctxfi: Simplify dao_clear_{left,right}_input() functions") centralized the DAO input mapper clearing logic in dao_clear_input(), but omitted the kfree() calls. It removes the mapper entries from the list and sets their pointers to NULL without freeing the allocated array. This leaks memory each time dao_clear_input() is called. Store the base pointer of the allocation before clearing the mapper entries and free the array after removing entries from the list.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0919d8dd19f92e12829055c75fced9a454d644bf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/593d46fc6af9a0178a46e77d6d24b20d2314165f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f7dc71c1ce885f5d9f128037ebc75d9c0356e060
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/pci/ctxfi/ctdaio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f7dc71c1ce885f5d9f128037ebc75d9c0356e060",
              "status": "affected",
              "version": "e576e7843c0d65b82d4092e5b386d9fbf5bc10c3",
              "versionType": "git"
            },
            {
              "lessThan": "0919d8dd19f92e12829055c75fced9a454d644bf",
              "status": "affected",
              "version": "e576e7843c0d65b82d4092e5b386d9fbf5bc10c3",
              "versionType": "git"
            },
            {
              "lessThan": "593d46fc6af9a0178a46e77d6d24b20d2314165f",
              "status": "affected",
              "version": "e576e7843c0d65b82d4092e5b386d9fbf5bc10c3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/pci/ctxfi/ctdaio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "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\nALSA: ctxfi: Fix memory leakage when clearing DAO input mappers\n\nCommit e576e7843c0d (\"ALSA: ctxfi: Simplify dao_clear_{left,right}_input() functions\")\ncentralized the DAO input mapper clearing logic in\ndao_clear_input(), but omitted the kfree() calls.\n\nIt removes the mapper entries from the list and sets their pointers\nto NULL without freeing the allocated array. This leaks memory each\ntime dao_clear_input() is called.\n\nStore the base pointer of the allocation before clearing the mapper\nentries and free the array after removing entries from the list."
    }
  ],
  "id": "CVE-2026-99068",
  "lastModified": "2026-10-23T13:17:30.693",
  "metrics": {},
  "published": "2026-10-23T13:17:30.693",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0919d8dd19f92e12829055c75fced9a454d644bf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/593d46fc6af9a0178a46e77d6d24b20d2314165f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f7dc71c1ce885f5d9f128037ebc75d9c0356e060"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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