{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-39495",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-39495"
  ],
  "published": "2024-07-12T12:21:19Z",
  "summary": "greybus: Fix use-after-free bug in gb_interface_release due to race condition.",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngreybus: Fix use-after-free bug in gb_interface_release due to race condition.\n\nIn gb_interface_create, &intf->mode_switch_completion is bound with\ngb_interface_mode_switch_work. Then it will be started by\ngb_interface_request_mode_switch. Here is the relevant code.\nif (!queue_work(system_long_wq, &intf->mode_switch_work)) {\n\t...\n}\n\nIf we call gb_interface_release to make cleanup, there may be an\nunfinished work. This function will call kfree to free the object\n\"intf\". However, if gb_interface_mode_switch_work is scheduled to\nrun after kfree, it may cause use-after-free error as\ngb_interface_mode_switch_work will use the object \"intf\".\nThe possible execution flow that may lead to the issue is as follows:\n\nCPU0                            CPU1\n\n                            |   gb_interface_create\n                            |   gb_interface_request_mode_switch\ngb_interface_release        |\nkfree(intf) (free)          |\n                            |   gb_interface_mode_switch_work\n                            |   mutex_lock(&intf->mutex) (use)\n\nFix it by canceling the work before kfree.",
  "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": "6.1.95",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-39495"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/74cd0a421896b2e07eafe7da4275302bfecef201"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2b6bb0b4abfd79b8698ee161bb73c0936a2aaf83"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fb071f5c75d4b1c177824de74ee75f9dd34123b9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9a733d69a4a59c2d08620e6589d823c24be773dc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0b8fba38bdfb848fac52e71270b2aa3538c996ea"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/03ea2b129344152157418929f06726989efc0445"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5c9c5d7f26acc2c669c1dcf57d1bb43ee99220ce"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:52:36Z"
  }
}