fkie_cve-2024-50216
Vulnerability from fkie_nvd
Published
2024-11-09 11:15
Modified
2024-11-12 13:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: xfs: fix finding a last resort AG in xfs_filestream_pick_ag When the main loop in xfs_filestream_pick_ag fails to find a suitable AG it tries to just pick the online AG. But the loop for that uses args->pag as loop iterator while the later code expects pag to be set. Fix this by reusing the max_pag case for this last resort, and also add a check for impossible case of no AG just to make sure that the uninitialized pag doesn't even escape in theory.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77ddc732416b017180893cbb2356e9f0a414c575
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a023408925acd64db5c8980373fcb3e28ec6fd29
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc60992ce76fbc2f71c2674f435ff6bde2108028
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\nxfs: fix finding a last resort AG in xfs_filestream_pick_ag\n\nWhen the main loop in xfs_filestream_pick_ag fails to find a suitable\nAG it tries to just pick the online AG.  But the loop for that uses\nargs->pag as loop iterator while the later code expects pag to be\nset.  Fix this by reusing the max_pag case for this last resort, and\nalso add a check for impossible case of no AG just to make sure that\nthe uninitialized pag doesn't even escape in theory.",
      },
      {
         lang: "es",
         value: "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xfs: se corrige la búsqueda de un AG de último recurso en xfs_filestream_pick_ag Cuando el bucle principal en xfs_filestream_pick_ag no puede encontrar un AG adecuado, intenta simplemente elegir el AG en línea. Pero el bucle para eso usa args->pag como iterador de bucle mientras que el código posterior espera que se configure pag. Corrija esto reutilizando el caso max_pag para este último recurso y también agregue una verificación para el caso imposible de que no haya AG solo para asegurarse de que el pag no inicializado ni siquiera escape en teoría.",
      },
   ],
   id: "CVE-2024-50216",
   lastModified: "2024-11-12T13:56:24.513",
   metrics: {},
   published: "2024-11-09T11:15:06.987",
   references: [
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/77ddc732416b017180893cbb2356e9f0a414c575",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/a023408925acd64db5c8980373fcb3e28ec6fd29",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/dc60992ce76fbc2f71c2674f435ff6bde2108028",
      },
   ],
   sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
   vulnStatus: "Awaiting Analysis",
}


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