CVE-2023-52617 (GCVE-0-2023-52617)
Vulnerability from cvelistv5
Published
2024-03-18 10:19
Modified
2025-05-04 07:39
Severity ?
4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/0233b836312e39a3c763fb53512b3fa455b473b3 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/1d83c85922647758c1f1e4806a4c5c3cf591a20a Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/4a5d0528cf19dbf060313dffbe047bc11c90c24c Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/d8c293549946ee5078ed0ab77793cec365559355 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/df25461119d987b8c81d232cfe4411e91dcabe66 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/e129c7fa7070fbce57feb0bfc5eaa65eef44b693 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/0233b836312e39a3c763fb53512b3fa455b473b3 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/1d83c85922647758c1f1e4806a4c5c3cf591a20a Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/4a5d0528cf19dbf060313dffbe047bc11c90c24c Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/d8c293549946ee5078ed0ab77793cec365559355 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/df25461119d987b8c81d232cfe4411e91dcabe66 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/e129c7fa7070fbce57feb0bfc5eaa65eef44b693 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8 Patch
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52617\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-18T11:15:09.057\",\"lastModified\":\"2025-04-08T15:26:38.597\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nPCI: switchtec: Fix stdev_release() crash after surprise hot remove\\n\\nA PCI device hot removal may occur while stdev-\u003ecdev is held open. The call\\nto stdev_release() then happens during close or exit, at a point way past\\nswitchtec_pci_remove(). Otherwise the last ref would vanish with the\\ntrailing put_device(), just before return.\\n\\nAt that later point in time, the devm cleanup has already removed the\\nstdev-\u003emmio_mrpc mapping. Also, the stdev-\u003epdev reference was not a counted\\none. 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. 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The call\\nto stdev_release() then happens during close or exit, at a point way past\\nswitchtec_pci_remove(). Otherwise the last ref would vanish with the\\ntrailing put_device(), just before return.\\n\\nAt that later point in time, the devm cleanup has already removed the\\nstdev-\u003emmio_mrpc mapping. Also, the stdev-\u003epdev reference was not a counted\\none. 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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.269\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.210\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.149\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.77\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:39:58.447Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52617\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:39:58.447Z\", \"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": "5.1"
    }
  }
}


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