fkie_cve-2023-54097
Vulnerability from fkie_nvd
Published
2025-12-24 13:16
Modified
2025-12-24 13:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: regulator: stm32-pwr: fix of_iomap leak Smatch reports: drivers/regulator/stm32-pwr.c:166 stm32_pwr_regulator_probe() warn: 'base' from of_iomap() not released on lines: 151,166. In stm32_pwr_regulator_probe(), base is not released when devm_kzalloc() fails to allocate memory or devm_regulator_register() fails to register a new regulator device, which may cause a leak. To fix this issue, replace of_iomap() with devm_platform_ioremap_resource(). devm_platform_ioremap_resource() is a specialized function for platform devices. It allows 'base' to be automatically released whether the probe function succeeds or fails. Besides, use IS_ERR(base) instead of !base as the return value of devm_platform_ioremap_resource() can either be a pointer to the remapped memory or an ERR_PTR() encoded error code if the operation fails.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ad07e02be0d3f0d554653382ffe53ae4879378d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/824683dbec234a01bd49a0589ee3323594a6f4cf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad6481f49fb2c703efa3a929643934f24b666d6a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c091bb49b3233307c7af73dae888f0799752af3d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4a413e56d16a2ae84e6d8992f215c4dcc7fac20
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dfce9bb3517a78507cf96f9b83948d0b81338afa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f25994f7a9ad53eb756bc4869497c3ebe281ad5e
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\nregulator: stm32-pwr: fix of_iomap leak\n\nSmatch reports:\ndrivers/regulator/stm32-pwr.c:166 stm32_pwr_regulator_probe() warn:\n\u0027base\u0027 from of_iomap() not released on lines: 151,166.\n\nIn stm32_pwr_regulator_probe(), base is not released\nwhen devm_kzalloc() fails to allocate memory or\ndevm_regulator_register() fails to register a new regulator device,\nwhich may cause a leak.\n\nTo fix this issue, replace of_iomap() with\ndevm_platform_ioremap_resource(). devm_platform_ioremap_resource()\nis a specialized function for platform devices.\nIt allows \u0027base\u0027 to be automatically released whether the probe\nfunction succeeds or fails.\n\nBesides, use IS_ERR(base) instead of !base\nas the return value of devm_platform_ioremap_resource()\ncan either be a pointer to the remapped memory or\nan ERR_PTR() encoded error code if the operation fails."
    }
  ],
  "id": "CVE-2023-54097",
  "lastModified": "2025-12-24T13:16:11.587",
  "metrics": {},
  "published": "2025-12-24T13:16:11.587",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0ad07e02be0d3f0d554653382ffe53ae4879378d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/824683dbec234a01bd49a0589ee3323594a6f4cf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ad6481f49fb2c703efa3a929643934f24b666d6a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c091bb49b3233307c7af73dae888f0799752af3d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c4a413e56d16a2ae84e6d8992f215c4dcc7fac20"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dfce9bb3517a78507cf96f9b83948d0b81338afa"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f25994f7a9ad53eb756bc4869497c3ebe281ad5e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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