FKIE_CVE-2026-23202

Vulnerability from fkie_nvd - Published: 2026-02-14 17:15 - Updated: 2026-10-19 19:17
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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/3bc293d5b56502068481478842f57b3d96e432c7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fd446178a610a48e80e5c5b487b0707cd01daacPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/712cde8d916889e282727cdf304a43683adf899ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/762e2ce71c8f0238e9eaf05d14da803d9a24422fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9fa4262a80f751d14a6a39d2c03f57db68da2618Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf4528ab28e2bf112c3a2cdef44fd13f007781cdPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-tegra210-quad.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            },
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            },
            {
              "status": "affected",
              "version": "bb0c58be84f907285af45657c1d4847b960a12bf",
              "versionType": "git"
            },
            {
              "lessThan": "6.18",
              "status": "affected",
              "version": "6.17.13",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-tegra210-quad.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5.15.200",
              "status": "affected",
              "version": "5.15.198",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.163",
              "status": "affected",
              "version": "6.1.160",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.124",
              "status": "affected",
              "version": "6.6.120",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.70",
              "status": "affected",
              "version": "6.12.63",
              "versionType": "semver"
            },
            {
              "lessThan": "6.18.10",
              "status": "affected",
              "version": "6.18.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
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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": "2026-10-19T19:17:41.550",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23202",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-10T20:41:13.077528Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-14T17:15:58.050",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/3bc293d5b56502068481478842f57b3d96e432c7"
    },
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      "url": "https://git.kernel.org/stable/c/6fd446178a610a48e80e5c5b487b0707cd01daac"
    },
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    },
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/9fa4262a80f751d14a6a39d2c03f57db68da2618"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/bf4528ab28e2bf112c3a2cdef44fd13f007781cd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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