fkie_cve-2025-38404
Vulnerability from fkie_nvd
Published
2025-07-25 14:15
Modified
2025-07-25 15:29
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: typec: displayport: Fix potential deadlock The deadlock can occur due to a recursive lock acquisition of `cros_typec_altmode_data::mutex`. The call chain is as follows: 1. cros_typec_altmode_work() acquires the mutex 2. typec_altmode_vdm() -> dp_altmode_vdm() -> 3. typec_altmode_exit() -> cros_typec_altmode_exit() 4. cros_typec_altmode_exit() attempts to acquire the mutex again To prevent this, defer the `typec_altmode_exit()` call by scheduling it rather than calling it directly from within the mutex-protected context.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/099cf1fbb8afc3771f408109f62bdec66f85160e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/63cff9f57e86b2dc25d7487ca0118df89a665296
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/749d9076735fb497aae60fbea9fff563f9ea3254
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76cf1f33e7319fe74c94ac92f9814094ee8cc84b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7be0d1ea71f52595499da39cea484a895e8ed042
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80c25d7916a44715338d4f8924c8e52af50d0b9f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c782f98eef14197affa8a7b91e6981420f109ea9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb08fca56f1f39e4038cb9bac9864464b13b00aa
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: displayport: Fix potential deadlock\n\nThe deadlock can occur due to a recursive lock acquisition of\n`cros_typec_altmode_data::mutex`.\nThe call chain is as follows:\n1. cros_typec_altmode_work() acquires the mutex\n2. typec_altmode_vdm() -\u003e dp_altmode_vdm() -\u003e\n3. typec_altmode_exit() -\u003e cros_typec_altmode_exit()\n4. cros_typec_altmode_exit() attempts to acquire the mutex again\n\nTo prevent this, defer the `typec_altmode_exit()` call by scheduling\nit rather than calling it directly from within the mutex-protected\ncontext."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: typec: displayport: Soluciona un posible bloqueo El bloqueo puede ocurrir debido a una adquisici\u00f3n de bloqueo recursiva de `cros_typec_altmode_data::mutex`. La cadena de llamadas es la siguiente: 1. cros_typec_altmode_work() adquiere el mutex 2. typec_altmode_vdm() -\u0026gt; dp_altmode_vdm() -\u0026gt; 3. typec_altmode_exit() -\u0026gt; cros_typec_altmode_exit() 4. cros_typec_altmode_exit() intenta adquirir el mutex de nuevo Para evitar esto, aplaza la llamada a `typec_altmode_exit()` program\u00e1ndola en lugar de llamarla directamente desde dentro del contexto protegido por mutex."
    }
  ],
  "id": "CVE-2025-38404",
  "lastModified": "2025-07-25T15:29:19.837",
  "metrics": {},
  "published": "2025-07-25T14:15:31.950",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/099cf1fbb8afc3771f408109f62bdec66f85160e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/63cff9f57e86b2dc25d7487ca0118df89a665296"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/749d9076735fb497aae60fbea9fff563f9ea3254"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76cf1f33e7319fe74c94ac92f9814094ee8cc84b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7be0d1ea71f52595499da39cea484a895e8ed042"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/80c25d7916a44715338d4f8924c8e52af50d0b9f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c782f98eef14197affa8a7b91e6981420f109ea9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb08fca56f1f39e4038cb9bac9864464b13b00aa"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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