CVE-2026-64357
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
25/07/2026
Última modificación:
25/07/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
xfs: fix exchmaps reservation limit check<br />
<br />
xfs_exchmaps_estimate_overhead() adds the bmbt and rmapbt<br />
overhead to a local resblks variable, but the final UINT_MAX<br />
check still tests req->resblks. That is the reservation value<br />
from before the overhead was added.<br />
<br />
The computed value is stored back in req->resblks and later passed<br />
to xfs_trans_alloc(), whose block reservation argument is unsigned<br />
int. Check the computed reservation so the existing limit applies<br />
to the value that will be used.



