fkie_cve-2024-41935
Vulnerability from fkie_nvd
Published
2025-01-11 13:15
Modified
2025-01-11 13:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to shrink read extent node in batches We use rwlock to protect core structure data of extent tree during its shrink, however, if there is a huge number of extent nodes in extent tree, during shrink of extent tree, it may hold rwlock for a very long time, which may trigger kernel hang issue. This patch fixes to shrink read extent node in batches, so that, critical region of the rwlock can be shrunk to avoid its extreme long time hold.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/295b50e95e900da31ff237e46e04525fa799b2cf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3fc5d5a182f6a1f8bd4dc775feb54c369dd2c343
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/924f7dd1e832e4e4530d14711db223d2803f7b61
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to shrink read extent node in batches\n\nWe use rwlock to protect core structure data of extent tree during\nits shrink, however, if there is a huge number of extent nodes in\nextent tree, during shrink of extent tree, it may hold rwlock for\na very long time, which may trigger kernel hang issue.\n\nThis patch fixes to shrink read extent node in batches, so that,\ncritical region of the rwlock can be shrunk to avoid its extreme\nlong time hold."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: correcci\u00f3n para reducir el nodo de extensi\u00f3n de lectura en lotes Usamos rwlock para proteger los datos de la estructura central del \u00e1rbol de extensi\u00f3n durante su reducci\u00f3n, sin embargo, si hay una gran cantidad de nodos de extensi\u00f3n en el \u00e1rbol de extensi\u00f3n, durante la reducci\u00f3n del \u00e1rbol de extensi\u00f3n, puede mantener rwlock durante mucho tiempo, lo que puede desencadenar un problema de bloqueo del kernel. Este parche corrige la reducci\u00f3n del nodo de extensi\u00f3n de lectura en lotes, de modo que la regi\u00f3n cr\u00edtica de rwlock se pueda reducir para evitar su retenci\u00f3n de tiempo extremadamente largo."
    }
  ],
  "id": "CVE-2024-41935",
  "lastModified": "2025-01-11T13:15:21.083",
  "metrics": {},
  "published": "2025-01-11T13:15:21.083",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/295b50e95e900da31ff237e46e04525fa799b2cf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3fc5d5a182f6a1f8bd4dc775feb54c369dd2c343"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/924f7dd1e832e4e4530d14711db223d2803f7b61"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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