Kernel security, year to date
Posted Sep 9, 2008 23:21 UTC (Tue) by jreiser
In reply to: Kernel security, year to date
Parent article: Kernel security, year to date
the kernel ... makes such heavy use of function pointers that
complete coverage of these situations is never going to happen. Why not? Build an option to gcc that tests for zero at every invocation of a non-lexical function, then make that option the default when compiling for Linux kernel. Or, have every interrupt and syscall map a replacement if page 0 already has a user-level mapping.
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