FKIE_CVE-2026-23202

Vulnerability from fkie_nvd - Published: 2026-02-14 17:15 - Updated: 2026-02-18 17:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer The curr_xfer field is read by the IRQ handler without holding the lock to check if a transfer is in progress. When clearing curr_xfer in the combined sequence transfer loop, protect it with the spinlock to prevent a race with the interrupt handler. Protect the curr_xfer clearing at the exit path of tegra_qspi_combined_seq_xfer() with the spinlock to prevent a race with the interrupt handler that reads this field. Without this protection, the IRQ handler could read a partially updated curr_xfer value, leading to NULL pointer dereference or use-after-free.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3bc293d5b56502068481478842f57b3d96e432c7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fd446178a610a48e80e5c5b487b0707cd01daac
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/712cde8d916889e282727cdf304a43683adf899e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/762e2ce71c8f0238e9eaf05d14da803d9a24422f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9fa4262a80f751d14a6a39d2c03f57db68da2618
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf4528ab28e2bf112c3a2cdef44fd13f007781cd
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\nspi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer\n\nThe curr_xfer field is read by the IRQ handler without holding the lock\nto check if a transfer is in progress. When clearing curr_xfer in the\ncombined sequence transfer loop, protect it with the spinlock to prevent\na race with the interrupt handler.\n\nProtect the curr_xfer clearing at the exit path of\ntegra_qspi_combined_seq_xfer() with the spinlock to prevent a race\nwith the interrupt handler that reads this field.\n\nWithout this protection, the IRQ handler could read a partially updated\ncurr_xfer value, leading to NULL pointer dereference or use-after-free."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nspi: tegra210-quad: Proteger curr_xfer en tegra_qspi_combined_seq_xfer\n\nEl campo curr_xfer es le\u00eddo por el manejador IRQ sin mantener el bloqueo para verificar si una transferencia est\u00e1 en curso. Al limpiar curr_xfer en el bucle de transferencia de secuencia combinada, protegerlo con el spinlock para evitar una condici\u00f3n de carrera con el manejador de interrupciones.\n\nProteger la limpieza de curr_xfer en la ruta de salida de tegra_qspi_combined_seq_xfer() con el spinlock para evitar una condici\u00f3n de carrera con el manejador de interrupciones que lee este campo.\n\nSin esta protecci\u00f3n, el manejador IRQ podr\u00eda leer un valor curr_xfer parcialmente actualizado, lo que llevar\u00eda a una desreferencia de puntero NULL o uso despu\u00e9s de liberaci\u00f3n."
    }
  ],
  "id": "CVE-2026-23202",
  "lastModified": "2026-02-18T17:52:22.253",
  "metrics": {},
  "published": "2026-02-14T17:15:58.050",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3bc293d5b56502068481478842f57b3d96e432c7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6fd446178a610a48e80e5c5b487b0707cd01daac"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/712cde8d916889e282727cdf304a43683adf899e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/762e2ce71c8f0238e9eaf05d14da803d9a24422f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9fa4262a80f751d14a6a39d2c03f57db68da2618"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf4528ab28e2bf112c3a2cdef44fd13f007781cd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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