ghsa-v2qv-w894-wvxx
Vulnerability from github
Published
2025-05-08 09:30
Modified
2025-11-03 21:33
Details

In the Linux kernel, the following vulnerability has been resolved:

usb: cdns3: Fix deadlock when using NCM gadget

The cdns3 driver has the same NCM deadlock as fixed in cdnsp by commit 58f2fcb3a845 ("usb: cdnsp: Fix deadlock issue during using NCM gadget").

Under PREEMPT_RT the deadlock can be readily triggered by heavy network traffic, for example using "iperf --bidir" over NCM ethernet link.

The deadlock occurs because the threaded interrupt handler gets preempted by a softirq, but both are protected by the same spinlock. Prevent deadlock by disabling softirq during threaded irq handler.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37812"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-08T07:15:52Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: Fix deadlock when using NCM gadget\n\nThe cdns3 driver has the same NCM deadlock as fixed in cdnsp by commit\n58f2fcb3a845 (\"usb: cdnsp: Fix deadlock issue during using NCM gadget\").\n\nUnder PREEMPT_RT the deadlock can be readily triggered by heavy network\ntraffic, for example using \"iperf --bidir\" over NCM ethernet link.\n\nThe deadlock occurs because the threaded interrupt handler gets\npreempted by a softirq, but both are protected by the same spinlock.\nPrevent deadlock by disabling softirq during threaded irq handler.",
  "id": "GHSA-v2qv-w894-wvxx",
  "modified": "2025-11-03T21:33:47Z",
  "published": "2025-05-08T09:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37812"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09e90a9689a4aac7a2f726dc2aa472b0b37937b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48a62deb857f0694f611949015e70ad194d97159"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59a760e4796a3cd88d8b9d7706e0a638de677751"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/74cd6e408a4c010e404832f0e4609d29bf1d0c41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1059896f2bfdcebcdc7153c3be2307ea319501f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b96239582531775f2fdcb14de29bdb6870fd4c8c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c27db84ed44e50ff90d9e3a2a25fae2e0a0fa015"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eebfb64c624fc738b669100173344fb441c5e719"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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