GHSA-GG5R-CW5W-F3JW

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

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

pds_core: fix auxiliary device add/del races

Two paths add or delete the same slot (pf->vfs[vf_id].padev): a VF's pdsc_reset_done() and the PF's devlink enable_vnet/disable_vnet handler. They serialize on config_lock, but neither guards the slot under it correctly.

add() registers and stores a new auxiliary device without first checking the slot, so a second add of an already-populated slot leaks the first device. del() makes that check outside config_lock, so two concurrent dels can both pass it; the first clears the slot, and the second dereferences a NULL pointer.

Check and update the slot under config_lock in both paths.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-68317"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:21Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: fix auxiliary device add/del races\n\nTwo paths add or delete the same slot (pf-\u003evfs[vf_id].padev): a VF\u0027s\npdsc_reset_done() and the PF\u0027s devlink enable_vnet/disable_vnet handler.\nThey serialize on config_lock, but neither guards the slot under it\ncorrectly.\n\nadd() registers and stores a new auxiliary device without first checking\nthe slot, so a second add of an already-populated slot leaks the first\ndevice. del() makes that check outside config_lock, so two concurrent\ndels can both pass it; the first clears the slot, and the second\ndereferences a NULL pointer.\n\nCheck and update the slot under config_lock in both paths.",
  "id": "GHSA-gg5r-cw5w-f3jw",
  "modified": "2026-08-10T15:33:46Z",
  "published": "2026-08-10T15:33:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68317"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/646b58b543f3bb1641e9123b75ff7799fe7b42f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfa33cd513c7ceb93c5a4c30e5662acd73c0a916"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef194751fed50cf3452017b63f00142a0ab40c70"
    }
  ],
  "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.