CVE-2023-53746 (GCVE-0-2023-53746)
Vulnerability from cvelistv5
Published
2025-12-08 01:19
Modified
2025-12-08 01:19
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/vfio-ap: fix memory leak in vfio_ap device driver The device release callback function invoked to release the matrix device uses the dev_get_drvdata(device *dev) function to retrieve the pointer to the vfio_matrix_dev object in order to free its storage. The problem is, this object is not stored as drvdata with the device; since the kfree function will accept a NULL pointer, the memory for the vfio_matrix_dev object is never freed. Since the device being released is contained within the vfio_matrix_dev object, the container_of macro will be used to retrieve its pointer.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1fde573413b549d52183382e639c1d6ce88f5959
Version: 1fde573413b549d52183382e639c1d6ce88f5959
Version: 1fde573413b549d52183382e639c1d6ce88f5959
Version: 1fde573413b549d52183382e639c1d6ce88f5959
Version: 1fde573413b549d52183382e639c1d6ce88f5959
Version: 1fde573413b549d52183382e639c1d6ce88f5959
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/s390/crypto/vfio_ap_drv.c"
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      ],
      "cpeApplicability": [
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          "nodes": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio-ap: fix memory leak in vfio_ap device driver\n\nThe device release callback function invoked to release the matrix device\nuses the dev_get_drvdata(device *dev) function to retrieve the\npointer to the vfio_matrix_dev object in order to free its storage. The\nproblem is, this object is not stored as drvdata with the device; since the\nkfree function will accept a NULL pointer, the memory for the\nvfio_matrix_dev object is never freed.\n\nSince the device being released is contained within the vfio_matrix_dev\nobject, the container_of macro will be used to retrieve its pointer."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-12-08T01:19:05.204Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53746",
    "datePublished": "2025-12-08T01:19:05.204Z",
    "dateReserved": "2025-12-08T01:18:04.279Z",
    "dateUpdated": "2025-12-08T01:19:05.204Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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