On Mon, 16 Jul 2012, David Rientjes wrote: > > The kernel cannot check everything and will blow up in unexpected ways if > > someone codes something stupid. There are numerous debugging options that > > need to be switched on to get better debugging information to investigate > > deper. Adding special code to replicate these checks is bad. > > > > Disagree, CONFIG_SLAB does not blow up for a NULL name string and just > corrupts userspace.
Ohh.. So far we only had science fiction. Now kernel fiction.... If you could corrupt userspace using sysfs with a NULL string then you'd first need to fix sysfs support. And if you really want to be totally safe then I guess you need to audit the kernel and make sure that every core kernel function that takes a string argument does check for it to be NULL just in case. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
