Vulnerability-Lookup

GHSA-8467-WMQ7-XF7Q

Vulnerability from github – Published: 2026-10-23 15:31 – Updated: 2026-10-23 15:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-99068"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-23T13:17:30Z",
    "severity": null
  },
  "details": "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": "GHSA-8467-wmq7-xf7q",
  "modified": "2026-10-23T15:31:36Z",
  "published": "2026-10-23T15:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99068"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0919d8dd19f92e12829055c75fced9a454d644bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/593d46fc6af9a0178a46e77d6d24b20d2314165f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7dc71c1ce885f5d9f128037ebc75d9c0356e060"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-99068 (GCVE-0-2026-99068)

Vulnerability from cvelistv5 – Published: 2026-10-23 12:23 – Updated: 2026-10-23 12:23

Title

ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers

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.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7067 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/f7dc71c1ce885f5d9…
https://git.kernel.org/stable/c/0919d8dd19f92e128…
https://git.kernel.org/stable/c/593d46fc6af9a0178…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e576e7843c0d65b82d4092e5b386d9fbf5bc10c3 , < f7dc71c1ce885f5d9f128037ebc75d9c0356e060 (git) Affected: e576e7843c0d65b82d4092e5b386d9fbf5bc10c3 , < 0919d8dd19f92e12829055c75fced9a454d644bf (git) Affected: e576e7843c0d65b82d4092e5b386d9fbf5bc10c3 , < 593d46fc6af9a0178a46e77d6d24b20d2314165f (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.57 , ≤ 6.18.* (semver) Unaffected: 7.2.11 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/pci/ctxfi/ctdaio.c"
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          "versions": [
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      "cpeApplicability": [
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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.

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