On Fri, Jun 24, 2016 at 12:20:52PM -0400, Paul Moore wrote: > > I'm a bit concerned about user space pointers passed as argument for compat > > tasks. These need to mask out 33 instead of 32 bits. This is of course > > system call specific and I don't know enough about audit to tell if it > > could be a problem. > > From a practical point of view I'm not sure how much of an impact that > will have as it is unlikely anyone will be doing anything useful with > those pointer values; for example, you aren't going to be inspecting a > process' memory space using just the audit log. Also, at the very > least we aren't removing any information, just adding in an extra bit > of potential junk. Anyone who does care about user space pointers in > the audit log, should have all the information the need to drop the > high bit. > > Does that sound reasonable? Yes, it does. If there should be problems because of the one extra bit that potentially contains garbage we still can look for a way to fix this. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
