GHSA-PCVH-8MRV-Q3WV

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-19 18:32
VLAI
Details

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

nfp: Check resource mutex allocation

nfp_cpp_resource_find() allocates a CPP mutex handle for the matching resource-table entry and then reports success. nfp_resource_try_acquire() immediately passes that handle to nfp_cpp_mutex_trylock().

However, nfp_cpp_mutex_alloc() returns NULL on failure. If that happens for a matching table entry, the resource lookup still returns success and the following trylock dereferences a NULL mutex pointer while opening the resource.

nfp_resource_acquire() already treats failure to allocate the table mutex as -ENOMEM. Do the same for the resource mutex and fail the lookup before publishing the rest of the resource handle.

This issue was found by a static analysis checker and confirmed by manual source review.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-68328"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:23Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfp: Check resource mutex allocation\n\nnfp_cpp_resource_find() allocates a CPP mutex handle for the matching\nresource-table entry and then reports success.  nfp_resource_try_acquire()\nimmediately passes that handle to nfp_cpp_mutex_trylock().\n\nHowever, nfp_cpp_mutex_alloc() returns NULL on failure.  If that happens\nfor a matching table entry, the resource lookup still returns success and\nthe following trylock dereferences a NULL mutex pointer while opening the\nresource.\n\nnfp_resource_acquire() already treats failure to allocate the table mutex\nas -ENOMEM.  Do the same for the resource mutex and fail the lookup before\npublishing the rest of the resource handle.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.",
  "id": "GHSA-pcvh-8mrv-q3wv",
  "modified": "2026-08-19T18:32:15Z",
  "published": "2026-08-10T15:33:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68328"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0dbd85a8cc35c14bd26e686fa5fae8c64a7958ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18737a48acc87e4cbe41d6fea9a3f44eae490e24"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b1d4fc3b73ea6faf008a0996ce6190c6e43efc3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/423523f96a681428ce6e214eaf47f0d8242319de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6dbd428119cb1fd1b73cf6968c711f4ea964dc8b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a61b4db34a753bdf5c9e77a7f3d3dddd41dcfacc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7dc30b6828c3a30252892827b12b676749f250f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfa119aa781c4044dab5b4c1e5864600f53a26bc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.