> > NAK - this feature is actively used and can be set by the sysctl > > interface. The PRCTL fixup was just a bug being fixed. The sysctl > > interface is still relevant. > > Thank you for correcting me. Appreciated. I am not aware that it is still > being actively used. May I know who or which program is using this feature?
Not programs - people. When you want to debug a large complex system with multiple setuid applications it can rapidly get quite unpleasant. If you set /proc/sys/kernel/suid_dumpable to 2 and /proc/sys/kernel/core_pattern then it becomes possible to get hold of all the core dumps and debug the system as a whole. The system is not secure in this state but while you are doing that kind of debug on a devel system its usually acceptable. Secondly we don't break userspace interfaces except in extreme cases - proc/sys/kernel/suid_dumpable is a user space interface Alan - 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/
