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, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>