{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-50059",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-50059"
  ],
  "published": "2024-10-21T19:40:44Z",
  "summary": "ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition\n\nIn the switchtec_ntb_add function, it can call switchtec_ntb_init_sndev\nfunction, then &sndev->check_link_status_work is bound with\ncheck_link_status_work. switchtec_ntb_link_notification may be called\nto start the work.\n\nIf we remove the module which will call switchtec_ntb_remove to make\ncleanup, it will free sndev through kfree(sndev), while the work\nmentioned above will be used. The sequence of operations that may lead\nto a UAF bug is as follows:\n\nCPU0                                 CPU1\n\n                        | check_link_status_work\nswitchtec_ntb_remove    |\nkfree(sndev);           |\n                        | if (sndev->link_force_down)\n                        | // use sndev\n\nFix it by ensuring that the work is canceled before proceeding with\nthe cleanup in switchtec_ntb_remove.",
  "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": "6.1.113",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-50059"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5126d8f5567f49b52e21fca320eaa97977055099"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b650189687822b705711f0567a65a164a314d8df"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/92728fceefdaa2a0a3aae675f86193b006eeaa43"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3ae45be8492460a35b5aebf6acac1f1d32708946"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/177925d9c8715a897bb79eca62628862213ba956"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e51aded92d42784313ba16c12f4f88cc4f973bbb"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z"
  }
}