ghsa-j58h-ppm8-rm4x
Vulnerability from github
Published
2025-01-19 12:31
Modified
2025-01-31 15:30
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:

nfs: Fix oops in nfs_netfs_init_request() when copying to cache

When netfslib wants to copy some data that has just been read on behalf of nfs, it creates a new write request and calls nfs_netfs_init_request() to initialise it, but with a NULL file pointer. This causes nfs_file_open_context() to oops - however, we don't actually need the nfs context as we're only going to write to the cache.

Fix this by just returning if we aren't given a file pointer and emit a warning if the request was for something other than copy-to-cache.

Further, fix nfs_netfs_free_request() so that it doesn't try to free the context if the pointer is NULL.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-57927"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-19T12:15:26Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfs: Fix oops in nfs_netfs_init_request() when copying to cache\n\nWhen netfslib wants to copy some data that has just been read on behalf of\nnfs, it creates a new write request and calls nfs_netfs_init_request() to\ninitialise it, but with a NULL file pointer.  This causes\nnfs_file_open_context() to oops - however, we don\u0027t actually need the nfs\ncontext as we\u0027re only going to write to the cache.\n\nFix this by just returning if we aren\u0027t given a file pointer and emit a\nwarning if the request was for something other than copy-to-cache.\n\nFurther, fix nfs_netfs_free_request() so that it doesn\u0027t try to free the\ncontext if the pointer is NULL.",
  "id": "GHSA-j58h-ppm8-rm4x",
  "modified": "2025-01-31T15:30:44Z",
  "published": "2025-01-19T12:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57927"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/13a07cc81e2d116cece727a83746c74b87a9d417"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86ad1a58f6a9453f49e06ef957a40a8dac00a13f"
    }
  ],
  "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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