Check for invalid mappings in user page tables
modulename: page_table_check.ko
configname: CONFIG_PAGE_TABLE_CHECK
Linux Kernel Configuration
└─>Kernel hacking
└─>Memory Debugging
└─>Check for invalid mappings in user page tables
In linux kernel since version 5.2 (release Date: 2019-07-07)
Check that anonymous page is not being mapped twice with read write
permissions. Check that anonymous and file pages are not being
erroneously shared. Since the checking is performed at the time
entries are added and removed to user page tables, leaking, corruption
and double mapping problems are detected synchronously.
If unsure say "n".
permissions. Check that anonymous and file pages are not being
erroneously shared. Since the checking is performed at the time
entries are added and removed to user page tables, leaking, corruption
and double mapping problems are detected synchronously.
If unsure say "n".