{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52617",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52617"
  ],
  "published": "2024-03-18T10:22:07Z",
  "summary": "PCI: switchtec: Fix stdev_release() crash after surprise hot remove",
  "details": "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->cdev 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->mmio_mrpc mapping. Also, the stdev->pdev 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 &stdev->pdev->dev pointer.\n\nFix by moving MRPC DMA shutdown into switchtec_pci_remove(), after\nstdev_kill(). Counting the stdev->pdev 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",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.77",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52617"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d8c293549946ee5078ed0ab77793cec365559355"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4a5d0528cf19dbf060313dffbe047bc11c90c24c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1d83c85922647758c1f1e4806a4c5c3cf591a20a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0233b836312e39a3c763fb53512b3fa455b473b3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e129c7fa7070fbce57feb0bfc5eaa65eef44b693"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/df25461119d987b8c81d232cfe4411e91dcabe66"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}