ghsa-ch98-87fr-x9f7
Vulnerability from github
Published
2024-11-19 03:31
Modified
2024-11-27 18:34
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:

filemap: Fix bounds checking in filemap_read()

If the caller supplies an iocb->ki_pos value that is close to the filesystem upper limit, and an iterator with a count that causes us to overflow that limit, then filemap_read() enters an infinite loop.

This behaviour was discovered when testing xfstests generic/525 with the "localio" optimisation for loopback NFS mounts.

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{
   affected: [],
   aliases: [
      "CVE-2024-50272",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-835",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-11-19T02:16:29Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nfilemap: Fix bounds checking in filemap_read()\n\nIf the caller supplies an iocb->ki_pos value that is close to the\nfilesystem upper limit, and an iterator with a count that causes us to\noverflow that limit, then filemap_read() enters an infinite loop.\n\nThis behaviour was discovered when testing xfstests generic/525 with the\n\"localio\" optimisation for loopback NFS mounts.",
   id: "GHSA-ch98-87fr-x9f7",
   modified: "2024-11-27T18:34:00Z",
   published: "2024-11-19T03:31:07Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-50272",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/26530b757c81f1389fb33ae0357500150933161b",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/6450e73f4c86d481ac2e22e1bc848d346e140826",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/a2746ab3bbc9c6408da5cd072653ec8c24749235",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/ace149e0830c380ddfce7e466fe860ca502fe4ee",
      },
   ],
   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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