Vulnerability-Lookup

GHSA-HGP5-3FHG-P5CF

Vulnerability from github – Published: 2026-05-06 12:30 – Updated: 2026-05-12 21:31

Details

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

most: core: fix resource leak in most_register_interface error paths

The function most_register_interface() did not correctly release resources if it failed early (before registering the device). In these cases, it returned an error code immediately, leaking the memory allocated for the interface.

Fix this by initializing the device early via device_initialize() and calling put_device() on all error paths.

The most_register_interface() is expected to call put_device() on error which frees the resources allocated in the caller. The put_device() either calls release_mdev() or dim2_release(), depending on the caller.

Switch to using device_add() instead of device_register() to handle the split initialization.

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-2025-71272"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T12:16:27Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmost: core: fix resource leak in most_register_interface error paths\n\nThe function most_register_interface() did not correctly release resources\nif it failed early (before registering the device). In these cases, it\nreturned an error code immediately, leaking the memory allocated for the\ninterface.\n\nFix this by initializing the device early via device_initialize() and\ncalling put_device() on all error paths.\n\nThe most_register_interface() is expected to call put_device() on\nerror which frees the resources allocated in the caller. The\nput_device() either calls release_mdev() or dim2_release(),\ndepending on the caller.\n\nSwitch to using device_add() instead of device_register() to handle\nthe split initialization.",
  "id": "GHSA-hgp5-3fhg-p5cf",
  "modified": "2026-05-12T21:31:26Z",
  "published": "2026-05-06T12:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71272"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f4c9d8a1021281750c6cda126d6f8a40cc24e71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f483f3817fb0e4209ac5de928778b1da0cc8574"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a49028a796d7b94f8e3ab9bd34b18f36be235459"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af0b99b2214a10554adb5b868240d23af6e64e71"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-71272 (GCVE-0-2025-71272)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-11 21:57

Title

most: core: fix resource leak in most_register_interface error paths

Summary

In the Linux kernel, the following vulnerability has been resolved: most: core: fix resource leak in most_register_interface error paths The function most_register_interface() did not correctly release resources if it failed early (before registering the device). In these cases, it returned an error code immediately, leaking the memory allocated for the interface. Fix this by initializing the device early via device_initialize() and calling put_device() on all error paths. The most_register_interface() is expected to call put_device() on error which frees the resources allocated in the caller. The put_device() either calls release_mdev() or dim2_release(), depending on the caller. Switch to using device_add() instead of device_register() to handle the split initialization.

Severity ?

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/a49028a796d7b94f8…
https://git.kernel.org/stable/c/af0b99b2214a10554…
https://git.kernel.org/stable/c/2f483f3817fb0e420…
https://git.kernel.org/stable/c/1f4c9d8a102128175…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < a49028a796d7b94f8e3ab9bd34b18f36be235459 (git) Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < af0b99b2214a10554adb5b868240d23af6e64e71 (git) Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < 2f483f3817fb0e4209ac5de928778b1da0cc8574 (git) Affected: 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c , < 1f4c9d8a1021281750c6cda126d6f8a40cc24e71 (git)
Linux	Linux	Affected: 5.6 Unaffected: 0 , < 5.6 (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-HGP5-3FHG-P5CF

CVE-2025-71272 (GCVE-0-2025-71272)

Tags

Sightings

Nomenclature