Re: [PATCH] x86, kernel: make dump_pagetables a tristate

From: Arjan van de Ven
Date: Mon Jul 01 2013 - 09:58:51 EST


On 6/29/2013 9:05 PM, Kees Cook wrote:
Being able to examine page tables is handy, so make this a module that
can be loaded as needed.

I personally don't think this is a good idea due to the various
security/etc implications of this feature... should really just
be off for non-debug kernels, not "off unless you load the module"


+#ifdef CONFIG_X86_64
+EXPORT_SYMBOL_GPL(init_level4_pgt);
+#else
+EXPORT_SYMBOL_GPL(swapper_pg_dir);
+#endif

like these really have no business in any module




--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/