FKIE_CVE-2025-38094

Vulnerability from fkie_nvd - Published: 2025-07-03 08:15 - Updated: 2025-11-03 20:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: cadence: macb: Fix a possible deadlock in macb_halt_tx. There is a situation where after THALT is set high, TGO stays high as well. Because jiffies are never updated, as we are in a context with interrupts disabled, we never exit that loop and have a deadlock. That deadlock was noticed on a sama5d4 device that stayed locked for days. Use retries instead of jiffies so that the timeout really works and we do not have a deadlock anymore.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0772a608d799ac0d127c0a36047a2725777aba9d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d60c0781c1bbeaa1196b0d8aad5c435f06cb7c4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3e64d35475aa21d13dab71da51de51923c1a3a48
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64675a9c00443b2e8af42af08c38fc1b78b68ba2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/84f98955a9de0e0f591df85aa1a44f3ebcf1cb37
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aace6b63892ce8307e502a60fe2f5a4bc6e1cfe7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c92d6089d8ad7d4d815ebcedee3f3907b539ff1f
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: cadence: macb: Fix a possible deadlock in macb_halt_tx.\n\nThere is a situation where after THALT is set high, TGO stays high as\nwell. Because jiffies are never updated, as we are in a context with\ninterrupts disabled, we never exit that loop and have a deadlock.\n\nThat deadlock was noticed on a sama5d4 device that stayed locked for days.\n\nUse retries instead of jiffies so that the timeout really works and we do\nnot have a deadlock anymore."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: cadence: macb: Se corrige un posible interbloqueo en macb_halt_tx. Existe una situaci\u00f3n en la que, tras establecerse un valor alto en THALT, TGO tambi\u00e9n permanece alto. Dado que los jiffies nunca se actualizan, al estar en un contexto con las interrupciones deshabilitadas, nunca salimos de ese bucle y se produce un interbloqueo. Este interbloqueo se detect\u00f3 en un dispositivo sama5d4 que permaneci\u00f3 bloqueado durante d\u00edas. Se recomienda usar reintentos en lugar de jiffies para que el tiempo de espera funcione correctamente y se elimine el interbloqueo."
    }
  ],
  "id": "CVE-2025-38094",
  "lastModified": "2025-11-03T20:18:46.420",
  "metrics": {},
  "published": "2025-07-03T08:15:25.490",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0772a608d799ac0d127c0a36047a2725777aba9d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1d60c0781c1bbeaa1196b0d8aad5c435f06cb7c4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3e64d35475aa21d13dab71da51de51923c1a3a48"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/64675a9c00443b2e8af42af08c38fc1b78b68ba2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/84f98955a9de0e0f591df85aa1a44f3ebcf1cb37"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aace6b63892ce8307e502a60fe2f5a4bc6e1cfe7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c92d6089d8ad7d4d815ebcedee3f3907b539ff1f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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