{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-35887",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-35887"
  ],
  "published": "2024-05-19T08:35:32Z",
  "summary": "ax25: fix use-after-free bugs caused by ax25_ds_del_timer",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nax25: fix use-after-free bugs caused by ax25_ds_del_timer\n\nWhen the ax25 device is detaching, the ax25_dev_device_down()\ncalls ax25_ds_del_timer() to cleanup the slave_timer. When\nthe timer handler is running, the ax25_ds_del_timer() that\ncalls del_timer() in it will return directly. As a result,\nthe use-after-free bugs could happen, one of the scenarios\nis shown below:\n\n      (Thread 1)          |      (Thread 2)\n                          | ax25_ds_timeout()\nax25_dev_device_down()    |\n  ax25_ds_del_timer()     |\n    del_timer()           |\n  ax25_dev_put() //FREE   |\n                          |  ax25_dev-> //USE\n\nIn order to mitigate bugs, when the device is detaching, use\ntimer_shutdown_sync() to stop the timer.",
  "affected": [
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        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-35887"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/28f2d36ac52225a13e020c2589833f1816a0cfc6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8a912ef5b7c5d14fb41b9a7935d1df5bb87058bf"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/74204bf9050f7627aead9875fe4e07ba125cb19b"
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      "url": "https://git.kernel.org/stable/c/c6a368f9c7af4c14b14d390c2543af8001c9bdb9"
    },
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      "type": "FIX",
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    }
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  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-14T12:06:03Z"
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}