{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-38602",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-38602"
  ],
  "published": "2024-06-19T13:48:33Z",
  "summary": "ax25: Fix reference count leak issues of ax25_dev",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nax25: Fix reference count leak issues of ax25_dev\n\nThe ax25_addr_ax25dev() and ax25_dev_device_down() exist a reference\ncount leak issue of the object \"ax25_dev\".\n\nMemory leak issue in ax25_addr_ax25dev():\n\nThe reference count of the object \"ax25_dev\" can be increased multiple\ntimes in ax25_addr_ax25dev(). This will cause a memory leak.\n\nMemory leak issues in ax25_dev_device_down():\n\nThe reference count of ax25_dev is set to 1 in ax25_dev_device_up() and\nthen increase the reference count when ax25_dev is added to ax25_dev_list.\nAs a result, the reference count of ax25_dev is 2. But when the device is\nshutting down. The ax25_dev_device_down() drops the reference count once\nor twice depending on if we goto unlock_put or not, which will cause\nmemory leak.\n\nAs for the issue of ax25_addr_ax25dev(), it is impossible for one pointer\nto be on a list twice. So add a break in ax25_addr_ax25dev(). As for the\nissue of ax25_dev_device_down(), increase the reference count of ax25_dev\nonce in ax25_dev_device_up() and decrease the reference count of ax25_dev\nafter it is removed from the ax25_dev_list.",
  "affected": [
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        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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        "1:6.1.58-1+rpt2",
        "1:6.1.63-1+rpt1",
        "1:6.1.73-1+rpt1",
        "1:6.6.20-1+rpt1",
        "1:6.6.28-1+rpt1",
        "1:6.6.31-1+rpt1"
      ],
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-38602"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ae467750a3765dd1092eb29f58247950a2f9b60c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/38eb01edfdaa1562fa00429be2e33f45383b1b3a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/81d8240b0a243b3ddd8fa8aa172f1acc2f7cc8f3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1ea02699c7557eeb35ccff2bd822de1b3e09d868"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b505e0319852b08a3a716b64620168eab21f4ced"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-24T06:48:58Z"
  }
}