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CVE-2024-50216

Status: AnalyzedMedium (5.5)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Linux — Linux Kernel

CWEs

References

Raw JSON (NVD)

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          "integrityImpact": "NONE",
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      "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."
    },
    {
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      "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."
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  "lastModified": "2026-06-17T08:03:53.827",
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