FKIE_CVE-2026-23026

Vulnerability from fkie_nvd - Published: 2026-01-31 12:16 - Updated: 2026-03-25 16:08
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: dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config() Fix a memory leak in gpi_peripheral_config() where the original memory pointed to by gchan->config could be lost if krealloc() fails. The issue occurs when: 1. gchan->config points to previously allocated memory 2. krealloc() fails and returns NULL 3. The function directly assigns NULL to gchan->config, losing the reference to the original memory 4. The original memory becomes unreachable and cannot be freed Fix this by using a temporary variable to hold the krealloc() result and only updating gchan->config when the allocation succeeds. Found via static analysis and code review.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/01b1d781394fc9b83015e3a3cd46b17bda842bd8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f747004bbd641131d9396d87b5d2d3d1e182728Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4532f18e4ab36def1f55cd936d0fc002b2ce34c2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/55a67ba5ac4cebfd54cc8305d4d57a0f1dfe6a85Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/694ab1f6f16cb69f7c5ef2452b22ba7b00a3c7c7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6bf4ef078fd11910988889a6c0b3698d2e0c89afPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.11
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 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config()\n\nFix a memory leak in gpi_peripheral_config() where the original memory\npointed to by gchan-\u003econfig could be lost if krealloc() fails.\n\nThe issue occurs when:\n1. gchan-\u003econfig points to previously allocated memory\n2. krealloc() fails and returns NULL\n3. The function directly assigns NULL to gchan-\u003econfig, losing the\n   reference to the original memory\n4. The original memory becomes unreachable and cannot be freed\n\nFix this by using a temporary variable to hold the krealloc() result\nand only updating gchan-\u003econfig when the allocation succeeds.\n\nFound via static analysis and code review."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndmaengine: qcom: gpi: Correcci\u00f3n de fuga de memoria en gpi_peripheral_config()\n\nCorrige una fuga de memoria en gpi_peripheral_config() donde la memoria original apuntada por gchan-\u0026gt;config podr\u00eda perderse si krealloc() falla.\n\nEl problema ocurre cuando:\n1. gchan-\u0026gt;config apunta a memoria previamente asignada\n2. krealloc() falla y devuelve NULL\n3. La funci\u00f3n asigna directamente NULL a gchan-\u0026gt;config, perdiendo la referencia a la memoria original\n4. La memoria original se vuelve inalcanzable y no puede ser liberada\n\nCorrige esto utilizando una variable temporal para contener el resultado de krealloc() y actualizando gchan-\u0026gt;config solo cuando la asignaci\u00f3n tiene \u00e9xito.\n\nEncontrado mediante an\u00e1lisis est\u00e1tico y revisi\u00f3n de c\u00f3digo."
    }
  ],
  "id": "CVE-2026-23026",
  "lastModified": "2026-03-25T16:08:24.480",
  "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"
      }
    ]
  },
  "published": "2026-01-31T12:16:05.920",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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