CVE-2023-54097 (GCVE-0-2023-54097)
Vulnerability from cvelistv5
Published
2025-12-24 13:06
Modified
2025-12-24 13:06
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
Impacted products
Vendor Product Version
Linux Linux Version: dc62f951a6a8490bcccc7b6de36cd85bd57be740
Version: dc62f951a6a8490bcccc7b6de36cd85bd57be740
Version: dc62f951a6a8490bcccc7b6de36cd85bd57be740
Version: dc62f951a6a8490bcccc7b6de36cd85bd57be740
Version: dc62f951a6a8490bcccc7b6de36cd85bd57be740
Version: dc62f951a6a8490bcccc7b6de36cd85bd57be740
Version: dc62f951a6a8490bcccc7b6de36cd85bd57be740
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{
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          "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."
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        "dateUpdated": "2025-12-24T13:06:24.519Z",
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    "dateReserved": "2025-12-24T13:02:52.516Z",
    "dateUpdated": "2025-12-24T13:06:24.519Z",
    "state": "PUBLISHED"
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  }
}


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