github - ghsa-gwjw-xj3g-wq7h

GHSA-GWJW-XJ3G-WQ7H

Vulnerability from github – Published: 2024-05-01 15:30 – Updated: 2025-09-18 15:30

Details

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

dpll: fix dpll_xa_ref_*_del() for multiple registrations

Currently, if there are multiple registrations of the same pin on the same dpll device, following warnings are observed: WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:143 dpll_xa_ref_pin_del.isra.0+0x21e/0x230 WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:223 __dpll_pin_unregister+0x2b3/0x2c0

The problem is, that in both dpll_xa_ref_dpll_del() and dpll_xa_ref_pin_del() registration is only removed from list in case the reference count drops to zero. That is wrong, the registration has to be removed always.

To fix this, remove the registration from the list and free it unconditionally, instead of doing it only when the ref reference counter reaches zero.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-27027"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T13:15:48Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpll: fix dpll_xa_ref_*_del() for multiple registrations\n\nCurrently, if there are multiple registrations of the same pin on the\nsame dpll device, following warnings are observed:\nWARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:143 dpll_xa_ref_pin_del.isra.0+0x21e/0x230\nWARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:223 __dpll_pin_unregister+0x2b3/0x2c0\n\nThe problem is, that in both dpll_xa_ref_dpll_del() and\ndpll_xa_ref_pin_del() registration is only removed from list in case the\nreference count drops to zero. That is wrong, the registration has to\nbe removed always.\n\nTo fix this, remove the registration from the list and free\nit unconditionally, instead of doing it only when the ref reference\ncounter reaches zero.",
  "id": "GHSA-gwjw-xj3g-wq7h",
  "modified": "2025-09-18T15:30:21Z",
  "published": "2024-05-01T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27027"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/769324eb35143462542cdb15483cdaf4877bf661"
    },
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}

CVE-2024-27027 (GCVE-0-2024-27027)

Vulnerability from cvelistv5 – Published: 2024-05-01 12:49 – Updated: 2025-05-04 09:02

Summary

In the Linux kernel, the following vulnerability has been resolved: dpll: fix dpll_xa_ref_*_del() for multiple registrations Currently, if there are multiple registrations of the same pin on the same dpll device, following warnings are observed: WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:143 dpll_xa_ref_pin_del.isra.0+0x21e/0x230 WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:223 __dpll_pin_unregister+0x2b3/0x2c0 The problem is, that in both dpll_xa_ref_dpll_del() and dpll_xa_ref_pin_del() registration is only removed from list in case the reference count drops to zero. That is wrong, the registration has to be removed always. To fix this, remove the registration from the list and free it unconditionally, instead of doing it only when the ref reference counter reaches zero.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/769324eb351434625…
	https://git.kernel.org/stable/c/b27e32e9367dac024…
	https://git.kernel.org/stable/c/b446631f355ece73b…

Impacted products

Vendor

Product

Version

Linux

Affected: 9431063ad323ac864750aeba4d304389bc42ca4e , < 769324eb35143462542cdb15483cdaf4877bf661 (git)
Affected: 9431063ad323ac864750aeba4d304389bc42ca4e , < b27e32e9367dac024cd6f61f22655714f483fd67 (git)
Affected: 9431063ad323ac864750aeba4d304389bc42ca4e , < b446631f355ece73b13c311dd712c47381a23172 (git)

Linux

Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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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-GWJW-XJ3G-WQ7H

CVE-2024-27027 (GCVE-0-2024-27027)

Tags

Sightings

Nomenclature