FKIE_CVE-2026-23068

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-02-06 17:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: spi-sprd-adi: Fix double free in probe error path The driver currently uses spi_alloc_host() to allocate the controller but registers it using devm_spi_register_controller(). If devm_register_restart_handler() fails, the code jumps to the put_ctlr label and calls spi_controller_put(). However, since the controller was registered via a devm function, the device core will automatically call spi_controller_put() again when the probe fails. This results in a double-free of the spi_controller structure. Fix this by switching to devm_spi_alloc_host() and removing the manual spi_controller_put() call.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/346775f2b4cf839177e8e86b94aa180a06dc15b0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/383d4f5cffcc8df930d95b06518a9d25a6d74aac
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/417cdfd9b9f986e95bfcb1d68eb443e6e0a15f8c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bddd3d10d039729b81cfb0804520c8832a701a0e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f6d6b3f172df118db582fe5ec43ae223a55d99cf
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-sprd-adi: Fix double free in probe error path\n\nThe driver currently uses spi_alloc_host() to allocate the controller\nbut registers it using devm_spi_register_controller().\n\nIf devm_register_restart_handler() fails, the code jumps to the\nput_ctlr label and calls spi_controller_put(). However, since the\ncontroller was registered via a devm function, the device core will\nautomatically call spi_controller_put() again when the probe fails.\nThis results in a double-free of the spi_controller structure.\n\nFix this by switching to devm_spi_alloc_host() and removing the\nmanual spi_controller_put() call."
    }
  ],
  "id": "CVE-2026-23068",
  "lastModified": "2026-02-06T17:16:22.930",
  "metrics": {},
  "published": "2026-02-04T17:16:17.500",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/346775f2b4cf839177e8e86b94aa180a06dc15b0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/383d4f5cffcc8df930d95b06518a9d25a6d74aac"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/417cdfd9b9f986e95bfcb1d68eb443e6e0a15f8c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bddd3d10d039729b81cfb0804520c8832a701a0e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f6d6b3f172df118db582fe5ec43ae223a55d99cf"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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