github - ghsa-f9wf-xvm8-m6qp

GHSA-F9WF-XVM8-M6QP

Vulnerability from github – Published: 2025-09-18 15:30 – Updated: 2025-09-18 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

staging: greybus: audio_helper: remove unused and wrong debugfs usage

In the greybus audio_helper code, the debugfs file for the dapm has the potential to be removed and memory will be leaked. There is also the very real potential for this code to remove ALL debugfs entries from the system, and it seems like this is what will really happen if this code ever runs. This all is very wrong as the greybus audio driver did not create this debugfs file, the sound core did and controls the lifespan of it.

So remove all of the debugfs logic from the audio_helper code as there's no way it could be correct. If this really is needed, it can come back with a fixup for the incorrect usage of the debugfs_lookup() call which is what caused this to be noticed at all.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50400"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T14:15:39Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: greybus: audio_helper: remove unused and wrong debugfs usage\n\nIn the greybus audio_helper code, the debugfs file for the dapm has the\npotential to be removed and memory will be leaked.  There is also the\nvery real potential for this code to remove ALL debugfs entries from the\nsystem, and it seems like this is what will really happen if this code\never runs.  This all is very wrong as the greybus audio driver did not\ncreate this debugfs file, the sound core did and controls the lifespan\nof it.\n\nSo remove all of the debugfs logic from the audio_helper code as there\u0027s\nno way it could be correct.  If this really is needed, it can come back\nwith a fixup for the incorrect usage of the debugfs_lookup() call which\nis what caused this to be noticed at all.",
  "id": "GHSA-f9wf-xvm8-m6qp",
  "modified": "2025-09-18T15:30:33Z",
  "published": "2025-09-18T15:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50400"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4dab0d27a4211a27135a6899d6c737e6e0759a11"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5699afbff1fa2972722e863906c0320d55dd4d58"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0febad83e29d85bb66e4f5cac0115b022403338"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d517cdeb904ddc0cbebcc959d43596426cac40b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d835fa49d9589a780ff0d001bb7e6323238a4afb"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50400 (GCVE-0-2022-50400)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:58 – Updated: 2025-09-18 13:58

Summary

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: audio_helper: remove unused and wrong debugfs usage In the greybus audio_helper code, the debugfs file for the dapm has the potential to be removed and memory will be leaked. There is also the very real potential for this code to remove ALL debugfs entries from the system, and it seems like this is what will really happen if this code ever runs. This all is very wrong as the greybus audio driver did not create this debugfs file, the sound core did and controls the lifespan of it. So remove all of the debugfs logic from the audio_helper code as there's no way it could be correct. If this really is needed, it can come back with a fixup for the incorrect usage of the debugfs_lookup() call which is what caused this to be noticed at all.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d0febad83e29d85bb…
	https://git.kernel.org/stable/c/4dab0d27a4211a271…
	https://git.kernel.org/stable/c/5699afbff1fa29727…
	https://git.kernel.org/stable/c/d835fa49d9589a780…
	https://git.kernel.org/stable/c/d517cdeb904ddc0cb…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d0febad83e29d85bb66e4f5cac0115b022403338 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4dab0d27a4211a27135a6899d6c737e6e0759a11 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5699afbff1fa2972722e863906c0320d55dd4d58 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d835fa49d9589a780ff0d001bb7e6323238a4afb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d517cdeb904ddc0cbebcc959d43596426cac40b0 (git)

Linux

Unaffected: 5.10.150 , ≤ 5.10.* (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
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            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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    "dateReserved": "2025-09-17T14:53:06.999Z",
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-F9WF-XVM8-M6QP

CVE-2022-50400 (GCVE-0-2022-50400)

Tags

Sightings

Nomenclature