Re: [patch 3/3] futex: Prevent attaching to kernel threads
On Mon, May 12, 2014 at 08:45:35PM -0000, Thomas Gleixner wrote: > We happily allow userspace to declare a random kernel thread to be the > owner of a user space PI futex. > > Found while analysing the fallout of Dave Jones syscall fuzzer.
Did you also still want to check the ppid for _PRIVATE futexes?