CVE-2025-71233 (GCVE-0-2025-71233)

Vulnerability from cvelistv5 – Published: 2026-02-18 14:53 – Updated: 2026-05-11 21:56
VLAI
Title
PCI: endpoint: Avoid creating sub-groups asynchronously
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Avoid creating sub-groups asynchronously The asynchronous creation of sub-groups by a delayed work could lead to a NULL pointer dereference when the driver directory is removed before the work completes. The crash can be easily reproduced with the following commands: # cd /sys/kernel/config/pci_ep/functions/pci_epf_test # for i in {1..20}; do mkdir test && rmdir test; done BUG: kernel NULL pointer dereference, address: 0000000000000088 ... Call Trace: configfs_register_group+0x3d/0x190 pci_epf_cfs_work+0x41/0x110 process_one_work+0x18f/0x350 worker_thread+0x25a/0x3a0 Fix this issue by using configfs_add_default_group() API which does not have the deadlock problem as configfs_register_group() and does not require the delayed work handler. [mani: slightly reworded the description and added stable list]
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6971 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e85a2d7837622bd99c96f5bbc7f972da90c285a2 , < fa9fb38f5fe9c80094c2138354d45cdc8d094d69 (git)
Affected: e85a2d7837622bd99c96f5bbc7f972da90c285a2 , < 5f609b3bffd4207cf9f2c9b41e1978457a5a1ea9 (git)
Affected: e85a2d7837622bd99c96f5bbc7f972da90c285a2 , < 8cb905eca73944089a0db01443c7628a9e87012d (git)
Affected: e85a2d7837622bd99c96f5bbc7f972da90c285a2 , < d9af3cf58bb4c8d6dea4166011c780756b1138b5 (git)
Affected: e85a2d7837622bd99c96f5bbc7f972da90c285a2 , < 24a253c3aa6d9a2cde46158ce9782e023bfbf32d (git)
Affected: e85a2d7837622bd99c96f5bbc7f972da90c285a2 , < 73cee890adafa2c219bb865356e08e7f82423fe5 (git)
Affected: e85a2d7837622bd99c96f5bbc7f972da90c285a2 , < 7c5c7d06bd1f86d2c3ebe62be903a4ba42db4d2c (git)
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Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.201 , ≤ 5.15.* (semver)
Unaffected: 6.1.164 , ≤ 6.1.* (semver)
Unaffected: 6.6.127 , ≤ 6.6.* (semver)
Unaffected: 6.12.72 , ≤ 6.12.* (semver)
Unaffected: 6.18.11 , ≤ 6.18.* (semver)
Unaffected: 6.19.1 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: Avoid creating sub-groups asynchronously\n\nThe asynchronous creation of sub-groups by a delayed work could lead to a\nNULL pointer dereference when the driver directory is removed before the\nwork completes.\n\nThe crash can be easily reproduced with the following commands:\n\n  # cd /sys/kernel/config/pci_ep/functions/pci_epf_test\n  # for i in {1..20}; do mkdir test \u0026\u0026 rmdir test; done\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000088\n  ...\n  Call Trace:\n   configfs_register_group+0x3d/0x190\n   pci_epf_cfs_work+0x41/0x110\n   process_one_work+0x18f/0x350\n   worker_thread+0x25a/0x3a0\n\nFix this issue by using configfs_add_default_group() API which does not\nhave the deadlock problem as configfs_register_group() and does not require\nthe delayed work handler.\n\n[mani: slightly reworded the description and added stable list]"
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            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nPCI: endpoint: Evitar la creaci\u00f3n as\u00edncrona de subgrupos\n\nLa creaci\u00f3n as\u00edncrona de subgrupos por un trabajo retrasado podr\u00eda llevar a una desreferencia de puntero NULL cuando el directorio del controlador es eliminado antes de que el trabajo se complete.\n\nEl fallo puede ser f\u00e1cilmente reproducido con los siguientes comandos:\n\n  # cd /sys/kernel/config/pci_ep/functions/pci_epf_test\n  # for i in {1..20}; do mkdir test \u0026amp;\u0026amp; rmdir test; done\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000088\n  ...\n  Call Trace:\n   configfs_register_group+0x3d/0x190\n   pci_epf_cfs_work+0x41/0x110\n   process_one_work+0x18f/0x350\n   worker_thread+0x25a/0x3a0\n\nSoluciona este problema usando la API configfs_add_default_group() que no tiene el problema de interbloqueo como configfs_register_group() y no requiere el manejador de trabajo retrasado.\n\n[mani: se ha reformulado ligeramente la descripci\u00f3n y se ha a\u00f1adido la lista estable]"
          }
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        "id": "CVE-2025-71233",
        "lastModified": "2026-06-17T10:03:55.263",
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                "attackVector": "LOCAL",
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                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
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        "published": "2026-02-18T16:22:30.080",
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              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fa9fb38f5fe9c80094c2138354d45cdc8d094d69"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:13:06+00:00",
      "cve": "CVE-2025-71233",
      "id": "CVE-2025-71233",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service via NULL pointer dereference in PCI endpoint configfs during asynchronous sub-group creation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71233.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-11-01T01:05:06Z",
      "cve": "CVE-2025-71233",
      "id": "CVE-2025-71233",
      "initial_release_date": "2026-02-19T00:28:42Z",
      "product_status:known_affected": "217",
      "product_status:known_not_affected": "213",
      "product_status:recommended": "207",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-71233",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2025-71233.json",
      "version": "26"
    }
  }
}



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Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.