fcc336b902
the "to" address can overflow in syssegfree() causing wrong number of pages to be passed to mfreeseg(). with the current implementation of mfreeseg() however, this doesnt cause any data corruption but was just freeing an unexpected number of pages. this change checks for this condition in syssegfree() and errors out instead. also mfreeseg() was changed to take ulong argument for number of pages instead of int to keep it consistent with other routines that work with page counts. |
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