ghsa-xc3w-pcvf-rm7m
Vulnerability from github
Published
2024-02-28 09:30
Modified
2024-12-09 18:31
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:

dmaengine: idxd: Fix potential null dereference on pointer status

There are calls to idxd_cmd_exec that pass a null status pointer however a recent commit has added an assignment to status that can end up with a null pointer dereference. The function expects a null status pointer sometimes as there is a later assignment to status where status is first null checked. Fix the issue by null checking status before making the assignment.

Addresses-Coverity: ("Explicit null dereferenced")

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47003"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-28T09:15:38Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Fix potential null dereference on pointer status\n\nThere are calls to idxd_cmd_exec that pass a null status pointer however\na recent commit has added an assignment to *status that can end up\nwith a null pointer dereference.  The function expects a null status\npointer sometimes as there is a later assignment to *status where\nstatus is first null checked.  Fix the issue by null checking status\nbefore making the assignment.\n\nAddresses-Coverity: (\"Explicit null dereferenced\")",
  "id": "GHSA-xc3w-pcvf-rm7m",
  "modified": "2024-12-09T18:31:18Z",
  "published": "2024-02-28T09:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47003"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2280b4cc29d8cdd2be3d1b2d1ea4f958e2131c97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28ac8e03c43dfc6a703aa420d18222540b801120"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5756f757c72501ef1a16f5f63f940623044180e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7bc402f843e7817a4a808e7b9ab0bcd7ffd55bfa"
    }
  ],
  "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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