fkie_cve-2022-48699
Vulnerability from fkie_nvd
Published
2024-05-03 16:15
Modified
2024-11-21 07:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: sched/debug: fix dentry leak in update_sched_domain_debugfs Kuyo reports that the pattern of using debugfs_remove(debugfs_lookup()) leaks a dentry and with a hotplug stress test, the machine eventually runs out of memory. Fix this up by using the newly created debugfs_lookup_and_remove() call instead which properly handles the dentry reference counting logic.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c32a93963e03c03e561d5a066eedad211880ba3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/26e9a1ded8923510e5529fbb28390b22228700c2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2e406596571659451f4b95e37ddfd5a8ef1d0dc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0c32a93963e03c03e561d5a066eedad211880ba3
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/26e9a1ded8923510e5529fbb28390b22228700c2
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c2e406596571659451f4b95e37ddfd5a8ef1d0dc
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched/debug: fix dentry leak in update_sched_domain_debugfs\n\nKuyo reports that the pattern of using debugfs_remove(debugfs_lookup())\nleaks a dentry and with a hotplug stress test, the machine eventually\nruns out of memory.\n\nFix this up by using the newly created debugfs_lookup_and_remove() call\ninstead which properly handles the dentry reference counting logic."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sched/debug: corrige la fuga de dentry en update_sched_domain_debugfs Kuyo informa que el patr\u00f3n de uso de debugfs_remove(debugfs_lookup()) pierde un dentry y con una prueba de estr\u00e9s de conexi\u00f3n en caliente, la m\u00e1quina eventualmente se queda sin memoria. Solucione este problema utilizando la llamada debugfs_lookup_and_remove() reci\u00e9n creada, que maneja adecuadamente la l\u00f3gica de conteo de referencias de dentry."
    }
  ],
  "id": "CVE-2022-48699",
  "lastModified": "2024-11-21T07:33:48.920",
  "metrics": {},
  "published": "2024-05-03T16:15:08.453",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0c32a93963e03c03e561d5a066eedad211880ba3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/26e9a1ded8923510e5529fbb28390b22228700c2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c2e406596571659451f4b95e37ddfd5a8ef1d0dc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/0c32a93963e03c03e561d5a066eedad211880ba3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/26e9a1ded8923510e5529fbb28390b22228700c2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/c2e406596571659451f4b95e37ddfd5a8ef1d0dc"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.