ghsa-fm6p-4m7g-f8f3
Vulnerability from github
Published
2025-02-27 03:34
Modified
2025-10-01 21:31
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details

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

LoongArch: csum: Fix OoB access in IP checksum code for negative lengths

Commit 69e3a6aa6be2 ("LoongArch: Add checksum optimization for 64-bit system") would cause an undefined shift and an out-of-bounds read.

Commit 8bd795fedb84 ("arm64: csum: Fix OoB access in IP checksum code for negative lengths") fixes the same issue on ARM64.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21789"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:19Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: csum: Fix OoB access in IP checksum code for negative lengths\n\nCommit 69e3a6aa6be2 (\"LoongArch: Add checksum optimization for 64-bit\nsystem\") would cause an undefined shift and an out-of-bounds read.\n\nCommit 8bd795fedb84 (\"arm64: csum: Fix OoB access in IP checksum code\nfor negative lengths\") fixes the same issue on ARM64.",
  "id": "GHSA-fm6p-4m7g-f8f3",
  "modified": "2025-10-01T21:31:12Z",
  "published": "2025-02-27T03:34:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21789"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6287f1a8c16138c2ec750953e35039634018c84a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/964a8895704a22efc06a2a3276b624a5ae985a06"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f15a8df542c0f08732a67d1a14ee7c22948fb97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6508ffff32b44b6d0de06704034e4eef1c307a7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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