fkie_cve-2024-57927
Vulnerability from fkie_nvd
Published
2025-01-19 12:15
Modified
2025-10-01 20:18
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13a07cc81e2d116cece727a83746c74b87a9d417Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/86ad1a58f6a9453f49e06ef957a40a8dac00a13fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13


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  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfs: Arreglar oops en nfs_netfs_init_request() al copiar a cach\u00e9 Cuando netfslib quiere copiar algunos datos que acaban de leerse en nombre de nfs, crea una nueva solicitud de escritura y llama a nfs_netfs_init_request() para inicializarla, pero con un puntero de archivo NULL. Esto hace que nfs_file_open_context() d\u00e9 un error; sin embargo, en realidad no necesitamos el contexto nfs ya que solo vamos a escribir en la cach\u00e9. Arregla esto simplemente devolviendo si no se nos da un puntero de archivo y emitiendo una advertencia si la solicitud fue para algo distinto a copiar a cach\u00e9. Adem\u00e1s, arregla nfs_netfs_free_request() para que no intente liberar el contexto si el puntero es NULL."
    }
  ],
  "id": "CVE-2024-57927",
  "lastModified": "2025-10-01T20:18:05.340",
  "metrics": {
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
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          "userInteraction": "NONE",
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  "published": "2025-01-19T12:15:26.810",
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}


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