ghsa-g97v-hf56-5335
Vulnerability from github
Published
2024-05-21 15:31
Modified
2025-04-30 15:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

scsi: core: Fix error handling of scsi_host_alloc()

After device is initialized via device_initialize(), or its name is set via dev_set_name(), the device has to be freed via put_device(). Otherwise device name will be leaked because it is allocated dynamically in dev_set_name().

Fix the leak by replacing kfree() with put_device(). Since scsi_host_dev_release() properly handles IDA and kthread removal, remove special-casing these from the error handling as well.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47258"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Fix error handling of scsi_host_alloc()\n\nAfter device is initialized via device_initialize(), or its name is set via\ndev_set_name(), the device has to be freed via put_device().  Otherwise\ndevice name will be leaked because it is allocated dynamically in\ndev_set_name().\n\nFix the leak by replacing kfree() with put_device(). Since\nscsi_host_dev_release() properly handles IDA and kthread removal, remove\nspecial-casing these from the error handling as well.",
  "id": "GHSA-g97v-hf56-5335",
  "modified": "2025-04-30T15:30:43Z",
  "published": "2024-05-21T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47258"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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