ghsa-ggvx-h8v5-pm3j
Vulnerability from github
Published
2024-03-11 18:31
Modified
2025-02-14 18:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

bus: mhi: host: Add alignment check for event ring read pointer

Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption.

So add a alignment check for event ring read pointer.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-52494"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-11T18:15:17Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: host: Add alignment check for event ring read pointer\n\nThough we do check the event ring read pointer by \"is_valid_ring_ptr\"\nto make sure it is in the buffer range, but there is another risk the\npointer may be not aligned.  Since we are expecting event ring elements\nare 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer\ncould lead to multiple issues like DoS or ring buffer memory corruption.\n\nSo add a alignment check for event ring read pointer.",
  "id": "GHSA-ggvx-h8v5-pm3j",
  "modified": "2025-02-14T18:30:46Z",
  "published": "2024-03-11T18:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52494"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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