CVE-2026-90421 (GCVE-0-2026-90421)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-09-17 16:09
VLAI
Title
PCI: Fix UAF when probe runs concurrent to dyn ID removal
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: Fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when dynids.lock is held, as remove_id_store() can free the node. Thus, make a copy in pci_match_device(). Also, clarify that the id parameter is only valid during probe.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0994375e9614f78657031e04e30019b9cdb62795 , < 42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49 (git)
Affected: 0994375e9614f78657031e04e30019b9cdb62795 , < 3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc (git)
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Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when dynids.lock is held,\nas remove_id_store() can free the node. Thus, make a copy in\npci_match_device(). Also, clarify that the id parameter is only valid\nduring probe."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:09:45.185Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc"
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  "cveMetadata": {
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    "cveId": "CVE-2026-90421",
    "datePublished": "2026-09-17T16:09:45.185Z",
    "dateReserved": "2026-09-11T19:38:34.814Z",
    "dateUpdated": "2026-09-17T16:09:45.185Z",
    "state": "PUBLISHED"
  },
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        "cveTags": [],
        "descriptions": [
          {
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when dynids.lock is held,\nas remove_id_store() can free the node. Thus, make a copy in\npci_match_device(). Also, clarify that the id parameter is only valid\nduring probe."
          }
        ],
        "id": "CVE-2026-90421",
        "lastModified": "2026-09-17T17:17:46.623",
        "metrics": {},
        "published": "2026-09-17T17:17:46.623",
        "references": [
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      "current_release_date": "2026-09-22T16:28:12Z",
      "cve": "CVE-2026-90421",
      "id": "CVE-2026-90421",
      "initial_release_date": "2026-09-18T00:16:28Z",
      "product_status:known_affected": "332",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-90421",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-90421.json",
      "version": "4"
    }
  }
}



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