github - ghsa-7qq6-jg2h-8g2j

ghsa-7qq6-jg2h-8g2j

Vulnerability from github

Published

2024-06-21 12:31

Modified

2024-06-21 12:31

Details

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

dmaengine: idxd: Avoid unnecessary destruction of file_ida

file_ida is allocated during cdev open and is freed accordingly during cdev release. This sequence is guaranteed by driver file operations. Therefore, there is no need to destroy an already empty file_ida when the WQ cdev is removed.

Worse, ida_free() in cdev release may happen after destruction of file_ida per WQ cdev. This can lead to accessing an id in file_ida after it has been destroyed, resulting in a kernel panic.

Remove ida_destroy(&file_ida) to address these issues.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-38629"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-21T11:15:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Avoid unnecessary destruction of file_ida\n\nfile_ida is allocated during cdev open and is freed accordingly\nduring cdev release. This sequence is guaranteed by driver file\noperations. Therefore, there is no need to destroy an already empty\nfile_ida when the WQ cdev is removed.\n\nWorse, ida_free() in cdev release may happen after destruction of\nfile_ida per WQ cdev. This can lead to accessing an id in file_ida\nafter it has been destroyed, resulting in a kernel panic.\n\nRemove ida_destroy(\u0026file_ida) to address these issues.",
  "id": "GHSA-7qq6-jg2h-8g2j",
  "modified": "2024-06-21T12:31:20Z",
  "published": "2024-06-21T12:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38629"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15edb906211bf53e7b5574f7326ab734d6bff4f9"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76e43fa6a456787bad31b8d0daeabda27351a480"
    },
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      "type": "WEB",
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  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-38629

Vulnerability from cvelistv5

Published

2024-06-21 10:18

Modified

2024-08-02 04:12

Severity ?

Summary

dmaengine: idxd: Avoid unnecessary destruction of file_ida

References

▼	URL	Tags
	https://git.kernel.org/stable/c/9eb15f24a0b9b017b39cde8b8c07243676b63687
	https://git.kernel.org/stable/c/15edb906211bf53e7b5574f7326ab734d6bff4f9
	https://git.kernel.org/stable/c/76e43fa6a456787bad31b8d0daeabda27351a480

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

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