CVE-2023-52617 (GCVE-0-2023-52617)

Vulnerability from cvelistv5 – Published: 2024-03-18 10:19 – Updated: 2026-05-11 19:30
VLAI
Title
PCI: switchtec: Fix stdev_release() crash after surprise hot remove
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: switchtec: Fix stdev_release() crash after surprise hot remove A PCI device hot removal may occur while stdev->cdev is held open. The call to stdev_release() then happens during close or exit, at a point way past switchtec_pci_remove(). Otherwise the last ref would vanish with the trailing put_device(), just before return. At that later point in time, the devm cleanup has already removed the stdev->mmio_mrpc mapping. Also, the stdev->pdev reference was not a counted one. Therefore, in DMA mode, the iowrite32() in stdev_release() will cause a fatal page fault, and the subsequent dma_free_coherent(), if reached, would pass a stale &stdev->pdev->dev pointer. Fix by moving MRPC DMA shutdown into switchtec_pci_remove(), after stdev_kill(). Counting the stdev->pdev ref is now optional, but may prevent future accidents. Reproducible via the script at https://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 , < d8c293549946ee5078ed0ab77793cec365559355 (git)
Affected: f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 , < 4a5d0528cf19dbf060313dffbe047bc11c90c24c (git)
Affected: f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 , < ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8 (git)
Affected: f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 , < 1d83c85922647758c1f1e4806a4c5c3cf591a20a (git)
Affected: f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 , < 0233b836312e39a3c763fb53512b3fa455b473b3 (git)
Affected: f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 , < e129c7fa7070fbce57feb0bfc5eaa65eef44b693 (git)
Affected: f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 , < df25461119d987b8c81d232cfe4411e91dcabe66 (git)
Create a notification for this product.
Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.4.269 , ≤ 5.4.* (semver)
Unaffected: 5.10.210 , ≤ 5.10.* (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.77 , ≤ 6.1.* (semver)
Unaffected: 6.6.16 , ≤ 6.6.* (semver)
Unaffected: 6.7.4 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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Therefore, in DMA mode, the iowrite32() in stdev_release() will cause\\na fatal page fault, and the subsequent dma_free_coherent(), if reached,\\nwould pass a stale \u0026stdev-\u003epdev-\u003edev pointer.\\n\\nFix by moving MRPC DMA shutdown into switchtec_pci_remove(), after\\nstdev_kill(). Counting the stdev-\u003epdev ref is now optional, but may prevent\\nfuture accidents.\\n\\nReproducible via the script at\\nhttps://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: switchtec: corrige el bloqueo de stdev_release() despu\u00e9s de una eliminaci\u00f3n sorpresa en caliente. Puede ocurrir una eliminaci\u00f3n en caliente del dispositivo PCI mientras stdev-\u0026gt;cdev se mantiene abierto. La llamada a stdev_release() ocurre durante el cierre o la salida, en un punto mucho m\u00e1s all\u00e1 de switchtec_pci_remove(). De lo contrario, la \u00faltima referencia desaparecer\u00eda con el put_device() final, justo antes del retorno. En ese momento posterior, la limpieza devm ya elimin\u00f3 la asignaci\u00f3n stdev-\u0026gt;mmio_mrpc. Adem\u00e1s, la referencia stdev-\u0026gt;pdev no se contaba. Por lo tanto, en modo DMA, iowrite32() en stdev_release() causar\u00e1 un error de p\u00e1gina fatal, y el dma_free_coherent() posterior, si se alcanza, pasar\u00eda un puntero \u0026amp;stdev-\u0026gt;pdev-\u0026gt;dev obsoleto. Para solucionarlo, mueva el apagado de MRPC DMA a switchtec_pci_remove(), despu\u00e9s de stdev_kill(). Contar stdev-\u0026gt;pdev ref ahora es opcional, pero puede evitar accidentes futuros. Reproducible a trav\u00e9s del script en 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:35:38+00:00",
      "cve": "CVE-2023-52617",
      "id": "CVE-2023-52617",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: PCI: switchtec: Fix stdev_release() crash after surprise hot remove",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52617.json",
      "version": "3"
    },
    "vulnrichment": {
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Counting the stdev-\u003epdev ref is now optional, but may prevent\\nfuture accidents.\\n\\nReproducible via the script at\\nhttps://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.269\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.210\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.149\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.77\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.16\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.4\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"5.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:16:39.893Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52617\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:16:39.893Z\", \"dateReserved\": \"2024-03-06T09:52:12.089Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-18T10:19:04.651Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.