ghsa-xxjc-4ppm-x655
Vulnerability from github
Published
2025-10-28 12:30
Modified
2025-10-29 15:31
Details

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

net: dlink: handle copy_thresh allocation failure

The driver did not handle failure of netdev_alloc_skb_ip_align(). If the allocation failed, dereferencing skb->protocol could lead to a NULL pointer dereference.

This patch tries to allocate skb. If the allocation fails, it falls back to the normal path.

Tested-on: D-Link DGE-550T Rev-A3

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40053"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-28T12:15:39Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dlink: handle copy_thresh allocation failure\n\nThe driver did not handle failure of `netdev_alloc_skb_ip_align()`.\nIf the allocation failed, dereferencing `skb-\u003eprotocol` could lead to\na NULL pointer dereference.\n\nThis patch tries to allocate `skb`. If the allocation fails, it falls\nback to the normal path.\n\nTested-on: D-Link DGE-550T Rev-A3",
  "id": "GHSA-xxjc-4ppm-x655",
  "modified": "2025-10-29T15:31:53Z",
  "published": "2025-10-28T12:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40053"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5aa9b885602811a026a3f45c92ea2b4b04c54f09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ed5010fef0930f4322d620052edc854ef3ec41f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8169a6011c5fecc6cb1c3654c541c567d3318de8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84fd710a704f3d53d4120e452e86cea558cf73a8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d49e4b14609e1a20d931e718962c4b6b5485174"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea87151df398d407a632c7bf63013290f01c5009"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd7b6b2c920d7fd370a612be416a904d6e1ebe55"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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